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freebsd-nq/sys/dev/isp/isp_freebsd.c

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Start each of the license/copyright comments with /*-, minor shuffle of lines
2005-01-06 01:43:34 +00:00
/*-
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Copyright (c) 1997-2009 by Matthew Jacob
First of several commits as this driver is dusted off and maybe brought up to date. Principle changes for this reelase is to support 2K Port Login firmware. This allows us to support the 2322 (and 2422 4Gb) cards which only come with the 2K Port Login firmware. The 2322 should now work- but we don't have firmware sets for it in ispfw (as the change to load 2K Port Login f/w hasn't been made- that f/w is so big it has to be loaded in more than one chunk). Other changes are the beginnings of cleaning up some long standing target mode issues. The next changes here will incorporate a lot of bug fixes from others. Finally, some copyright cleanup and attempts to make the parts of the driver that are FreeBSD specific start conforming more to FreeBSD style. MFC after: 1 month
2006-01-23 06:23:37 +00:00
* All rights reserved.
Add support for the Qlogic ISP SCSI && FC/AL Adapters
1998-04-22 17:54:58 +00:00
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
some copyright cleanups
2000-09-21 20:16:04 +00:00
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
Add support for the Qlogic ISP SCSI && FC/AL Adapters
1998-04-22 17:54:58 +00:00
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
Use __FBSDID(). Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
Some rearrangement of headers to minimize diffs with outside of FreeBSD repository and to clean up the license header so as to not pollute the license with file function. Zero all mailbox structures prior to use (just in case). Change the outgoing mailbox count for INIT_FIRMWARE to be correct.
2006-07-16 20:11:50 +00:00
/*
* Platform (FreeBSD) dependent common attachment code for Qlogic adapters.
*/
Use __FBSDID(). Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
Add support for the Qlogic ISP SCSI && FC/AL Adapters
1998-04-22 17:54:58 +00:00
#include <dev/isp/isp_freebsd.h>
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
#include <sys/unistd.h>
#include <sys/kthread.h>
#include <sys/conf.h>
Put MODULE_VERSION back here so that ispfw is happy.
2002-07-25 16:00:24 +00:00
#include <sys/module.h>
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
#include <sys/ioccom.h>
#include <dev/isp/isp_ioctl.h>
Fix compilation issues found in RELENG_4 port and merge the diffs back to -current to keep versions identical.
2007-03-12 04:54:30 +00:00
#include <sys/devicestat.h>
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
#include <cam/cam_periph.h>
MFP4: Move default setting to the end of isp_reset instead of the front of isp_init so we can read NVRAM even if we're role ISP_NONE. Prepare for reintroduction of channels (for FC) for N-Port Virtualization. Fix a botch in handle assignment that caused us to nuke one device when a new one arrives and end up with two devices with the same identity in the virtual target mapping table.
2007-01-20 04:00:21 +00:00
#include <cam/cam_xpt_periph.h>
Add support for the Qlogic ISP SCSI && FC/AL Adapters
1998-04-22 17:54:58 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#if __FreeBSD_version < 800002
#define THREAD_CREATE kthread_create
#else
#define THREAD_CREATE kproc_create
Add back some CAM_NEW_TRAN code to make backporting to RELENG_6 easier.
2006-12-18 23:50:30 +00:00
#endif
Put MODULE_VERSION back here so that ispfw is happy.
2002-07-25 16:00:24 +00:00
MODULE_VERSION(isp, 1);
Add a module dependancy. Now CAM will autoload when you load this. OK'ed by: mdodd
2003-09-15 06:41:33 +00:00
MODULE_DEPEND(isp, cam, 1, 1, 1);
'Support' for ISP SBus cards. This code does not imply that SBus cards work yet. They hang for me. But I can't netboot the latest snapshot on my ultra1e, and things hang at bus_setup_intr time. Since I'm offline for a while, I thought I'd toss this in in case somebody else who has a bit better luck wants to fart around with it. Please try and wait until I get back to check things in.
2002-07-11 03:25:04 +00:00
int isp_announced = 0;
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
int isp_fabric_hysteresis = 5;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int isp_loop_down_limit = 60; /* default loop down limit */
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
int isp_change_is_bad = 0; /* "changed" devices are bad */
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int isp_quickboot_time = 7; /* don't wait more than N secs for loop up */
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
int isp_gone_device_time = 30; /* grace time before reporting device lost */
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int isp_autoconfig = 1; /* automatically attach/detach devices */
static const char prom3[] = "Chan %d PortID 0x%06x Departed from Target %u because of %s";
'Support' for ISP SBus cards. This code does not imply that SBus cards work yet. They hang for me. But I can't netboot the latest snapshot on my ultra1e, and things hang at bus_setup_intr time. Since I'm offline for a while, I thought I'd toss this in in case somebody else who has a bit better luck wants to fart around with it. Please try and wait until I get back to check things in.
2002-07-11 03:25:04 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void isp_freeze_loopdown(ispsoftc_t *, int, char *);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
static d_ioctl_t ispioctl;
Add in config_hook for catching when interrupts are safe- this allows us to not the ints are ok and also to (re)ENABLE isp interrupts. Remove all splcam()/splx() invocates and replace them with ISP_LOCK/ISP_UNLOCK macros.
2000-07-04 01:05:43 +00:00
static void isp_intr_enable(void *);
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
static void isp_cam_async(void *, uint32_t, struct cam_path *, void *);
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
static void isp_poll(struct cam_sim *);
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
static timeout_t isp_watchdog;
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
static timeout_t isp_gdt;
static task_fn_t isp_gdt_task;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
static timeout_t isp_ldt;
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
static task_fn_t isp_ldt_task;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
static void isp_kthread(void *);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
static void isp_action(struct cam_sim *, union ccb *);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#ifdef ISP_INTERNAL_TARGET
static void isp_target_thread_pi(void *);
static void isp_target_thread_fc(void *);
Add missing pre-7.0 firmware pointer. Oops.
2006-09-01 04:57:14 +00:00
#endif
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
static int isp_timer_count;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void isp_timer(void *);
Add in a watchdog routine to catch cases where we've dropped the command. Apparently the f/w has finished the command, but somehow an interrupt is being lost. So, we just plain wedge when booting alphas. This is a general routine we've needed for a while.
2000-05-09 01:08:21 +00:00
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
static struct cdevsw isp_cdevsw = {
Device megapatch 4/6: Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
.d_version = D_VERSION,
Gigacommit to improve device-driver source compatibility between branches: Initialize struct cdevsw using C99 sparse initializtion and remove all initializations to default values. This patch is automatically generated and has been tested by compiling LINT with all the fields in struct cdevsw in reverse order on alpha, sparc64 and i386. Approved by: re(scottl)
2003-03-03 12:15:54 +00:00
.d_ioctl = ispioctl,
.d_name = "isp",
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
};
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static int
isp_attach_chan(ispsoftc_t *isp, struct cam_devq *devq, int chan)
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
{
struct ccb_setasync csa;
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
struct cam_sim *sim;
struct cam_path *path;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
/*
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
* Construct our SIM entry.
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sim = cam_sim_alloc(isp_action, isp_poll, "isp", isp, device_get_unit(isp->isp_dev), &isp->isp_osinfo.lock, isp->isp_maxcmds, isp->isp_maxcmds, devq);
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
if (sim == NULL) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (ENOMEM);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
Add in config_hook for catching when interrupts are safe- this allows us to not the ints are ok and also to (re)ENABLE isp interrupts. Remove all splcam()/splx() invocates and replace them with ISP_LOCK/ISP_UNLOCK macros.
2000-07-04 01:05:43 +00:00
Temp workaround for config_intrhook_establish running the hook right away.
2007-05-13 17:45:00 +00:00
ISP_LOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (xpt_bus_register(sim, isp->isp_dev, chan) != CAM_SUCCESS) {
ISP_UNLOCK(isp);
cam_sim_free(sim, FALSE);
return (EIO);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_UNLOCK(isp);
Merge CAM locking changes from the projects/camlock branch to radically reduce lock congestion and improve SMP scalability of the SCSI/ATA stack, preparing the ground for the coming next GEOM direct dispatch support. Replace big per-SIM locks with bunch of smaller ones: - per-LUN locks to protect device and peripheral drivers state; - per-target locks to protect list of LUNs on target; - per-bus locks to protect reference counting; - per-send queue locks to protect queue of CCBs to be sent; - per-done queue locks to protect queue of completed CCBs; - remaining per-SIM locks now protect only HBA driver internals. While holding LUN lock it is allowed (while not recommended for performance reasons) to take SIM lock. The opposite acquisition order is forbidden. All the other locks are leaf locks, that can be taken anywhere, but should not be cascaded. Many functions, such as: xpt_action(), xpt_done(), xpt_async(), xpt_create_path(), etc. are no longer require (but allow) SIM lock to be held. To keep compatibility and solve cases where SIM lock can't be dropped, all xpt_async() calls in addition to xpt_done() calls are queued to completion threads for async processing in clean environment without SIM lock held. Instead of single CAM SWI thread, used for commands completion processing before, use multiple (depending on number of CPUs) threads. Load balanced between them using "hash" of the device B:T:L address. HBA drivers that can drop SIM lock during completion processing and have sufficient number of completion threads to efficiently scale to multiple CPUs can use new function xpt_done_direct() to avoid extra context switch. Make ahci(4) driver to use this mechanism depending on hardware setup. Sponsored by: iXsystems, Inc. MFC after: 2 months
2013-10-21 12:00:26 +00:00
if (xpt_create_path(&path, NULL, cam_sim_path(sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_LOCK(isp);
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
xpt_bus_deregister(cam_sim_path(sim));
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_UNLOCK(isp);
cam_sim_free(sim, FALSE);
return (ENXIO);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
xpt_setup_ccb(&csa.ccb_h, path, 5);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_LOST_DEVICE;
Implement and use Fast Posting for both parallel && fibre. Redo a bit of the startup code. Implement a call to outer framework function so that asynchronous events can be handled (e.g., speed negotiation, target mode). Roll internal release tags.
1999-01-30 07:29:00 +00:00
csa.callback = isp_cam_async;
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
csa.callback_arg = sim;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_LOCK(isp);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_action((union ccb *)&csa);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_UNLOCK(isp);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_SCSI(isp)) {
struct isp_spi *spi = ISP_SPI_PC(isp, chan);
spi->sim = sim;
spi->path = path;
#ifdef ISP_INTERNAL_TARGET
ISP_SET_PC(isp, chan, proc_active, 1);
if (THREAD_CREATE(isp_target_thread_pi, spi, &spi->target_proc, 0, 0, "%s: isp_test_tgt%d", device_get_nameunit(isp->isp_osinfo.dev), chan)) {
ISP_SET_PC(isp, chan, proc_active, 0);
isp_prt(isp, ISP_LOGERR, "cannot create test target thread");
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#endif
} else {
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fcparam *fcp = FCPARAM(isp, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_fc *fc = ISP_FC_PC(isp, chan);
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
ISP_LOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->sim = sim;
fc->path = path;
fc->isp = isp;
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc->ready = 1;
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
callout_init_mtx(&fc->ldt, &isp->isp_osinfo.lock, 0);
callout_init_mtx(&fc->gdt, &isp->isp_osinfo.lock, 0);
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
TASK_INIT(&fc->ltask, 1, isp_ldt_task, fc);
TASK_INIT(&fc->gtask, 1, isp_gdt_task, fc);
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* We start by being "loop down" if we have an initiator role
*/
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (fcp->role & ISP_ROLE_INITIATOR) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_freeze_loopdown(isp, chan, "isp_attach");
callout_reset(&fc->ldt, isp_quickboot_time * hz, isp_ldt, fc);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Starting Initial Loop Down Timer @ %lu", (unsigned long) time_uptime);
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_UNLOCK(isp);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (THREAD_CREATE(isp_kthread, fc, &fc->kproc, 0, 0, "%s: fc_thrd%d", device_get_nameunit(isp->isp_osinfo.dev), chan)) {
xpt_free_path(fc->path);
ISP_LOCK(isp);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (callout_active(&fc->ldt))
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
callout_stop(&fc->ldt);
xpt_bus_deregister(cam_sim_path(fc->sim));
ISP_UNLOCK(isp);
cam_sim_free(fc->sim, FALSE);
return (ENOMEM);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#ifdef ISP_INTERNAL_TARGET
ISP_SET_PC(isp, chan, proc_active, 1);
if (THREAD_CREATE(isp_target_thread_fc, fc, &fc->target_proc, 0, 0, "%s: isp_test_tgt%d", device_get_nameunit(isp->isp_osinfo.dev), chan)) {
ISP_SET_PC(isp, chan, proc_active, 0);
isp_prt(isp, ISP_LOGERR, "cannot create test target thread");
}
#endif
Implement the sysctl's for fibre channel that are listed in the man page. MFC after: 3 days
2011-11-06 00:44:40 +00:00
if (chan == 0) {
struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(isp->isp_osinfo.dev);
struct sysctl_oid *tree = device_get_sysctl_tree(isp->isp_osinfo.dev);
SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "wwnn", CTLFLAG_RD, &FCPARAM(isp, 0)->isp_wwnn, "World Wide Node Name");
SYSCTL_ADD_QUAD(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "wwpn", CTLFLAG_RD, &FCPARAM(isp, 0)->isp_wwpn, "World Wide Port Name");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "loop_down_limit", CTLFLAG_RW, &ISP_FC_PC(isp, 0)->loop_down_limit, 0, "Loop Down Limit");
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "gone_device_time", CTLFLAG_RW, &ISP_FC_PC(isp, 0)->gone_device_time, 0, "Gone Device Time");
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
#if defined(ISP_TARGET_MODE) && defined(DEBUG)
SYSCTL_ADD_UINT(ctx, SYSCTL_CHILDREN(tree), OID_AUTO, "inject_lost_data_frame", CTLFLAG_RW, &ISP_FC_PC(isp, 0)->inject_lost_data_frame, 0, "Cause a Lost Frame on a Read");
#endif
Implement the sysctl's for fibre channel that are listed in the man page. MFC after: 3 days
2011-11-06 00:44:40 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
return (0);
}
int
isp_attach(ispsoftc_t *isp)
{
const char *nu = device_get_nameunit(isp->isp_osinfo.dev);
int du = device_get_unit(isp->isp_dev);
int chan;
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp->isp_osinfo.ehook.ich_func = isp_intr_enable;
isp->isp_osinfo.ehook.ich_arg = isp;
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
/*
* Haha. Set this first, because if we're loaded as a module isp_intr_enable
* will be called right awawy, which will clear isp_osinfo.ehook_active,
* which would be unwise to then set again later.
*/
isp->isp_osinfo.ehook_active = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (config_intrhook_establish(&isp->isp_osinfo.ehook) != 0) {
isp_prt(isp, ISP_LOGERR, "could not establish interrupt enable hook");
return (-EIO);
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Create the device queue for our SIM(s).
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp->isp_osinfo.devq = cam_simq_alloc(isp->isp_maxcmds);
if (isp->isp_osinfo.devq == NULL) {
config_intrhook_disestablish(&isp->isp_osinfo.ehook);
return (EIO);
Do some cleanup based upon adapter role- mainly not enabling interrupts if we're ISP_ROLE_NONE. Change ISPASYNC_LOGGED_INOUT to ISPASYNC_PROMENADE. Make sure we note if something is a fabric device. Target mode: Finally fix (to a first approximation) SCSI Target Mode again- we needed to correctly check against CAM_TARGET_WILDCARD and CAM_LUN_WILDCARD so that targbh won't confuse us. Comment out the drainqueue stuff for now. Use isp_fc_runstate instead if isp_control/ISPCTL_FCLINK_TEST.
2001-02-11 03:47:39 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
for (chan = 0; chan < isp->isp_nchan; chan++) {
if (isp_attach_chan(isp, isp->isp_osinfo.devq, chan)) {
goto unwind;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
}
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
callout_init_mtx(&isp->isp_osinfo.tmo, &isp->isp_osinfo.lock, 0);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_timer_count = hz >> 2;
callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp->isp_osinfo.timer_active = 1;
isp->isp_osinfo.cdev = make_dev(&isp_cdevsw, du, UID_ROOT, GID_OPERATOR, 0600, "%s", nu);
if (isp->isp_osinfo.cdev) {
isp->isp_osinfo.cdev->si_drv1 = isp;
}
return (0);
unwind:
while (--chan >= 0) {
struct cam_sim *sim;
struct cam_path *path;
if (IS_FC(isp)) {
sim = ISP_FC_PC(isp, chan)->sim;
path = ISP_FC_PC(isp, chan)->path;
} else {
sim = ISP_SPI_PC(isp, chan)->sim;
path = ISP_SPI_PC(isp, chan)->path;
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_free_path(path);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
ISP_LOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_bus_deregister(cam_sim_path(sim));
ISP_UNLOCK(isp);
cam_sim_free(sim, FALSE);
}
if (isp->isp_osinfo.ehook_active) {
config_intrhook_disestablish(&isp->isp_osinfo.ehook);
isp->isp_osinfo.ehook_active = 0;
}
if (isp->isp_osinfo.cdev) {
destroy_dev(isp->isp_osinfo.cdev);
isp->isp_osinfo.cdev = NULL;
}
cam_simq_free(isp->isp_osinfo.devq);
isp->isp_osinfo.devq = NULL;
return (-1);
}
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
int
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_detach(ispsoftc_t *isp)
{
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
struct cam_sim *sim;
struct cam_path *path;
struct ccb_setasync csa;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int chan;
ISP_LOCK(isp);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1) {
if (IS_FC(isp)) {
sim = ISP_FC_PC(isp, chan)->sim;
path = ISP_FC_PC(isp, chan)->path;
} else {
sim = ISP_SPI_PC(isp, chan)->sim;
path = ISP_SPI_PC(isp, chan)->path;
}
if (sim->refcount > 2) {
ISP_UNLOCK(isp);
return (EBUSY);
}
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (isp->isp_osinfo.timer_active) {
callout_stop(&isp->isp_osinfo.tmo);
isp->isp_osinfo.timer_active = 0;
}
for (chan = isp->isp_nchan - 1; chan >= 0; chan -= 1) {
if (IS_FC(isp)) {
sim = ISP_FC_PC(isp, chan)->sim;
path = ISP_FC_PC(isp, chan)->path;
} else {
sim = ISP_SPI_PC(isp, chan)->sim;
path = ISP_SPI_PC(isp, chan)->path;
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
}
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
xpt_setup_ccb(&csa.ccb_h, path, 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = 0;
csa.callback = isp_cam_async;
csa.callback_arg = sim;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_LOCK(isp);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
xpt_action((union ccb *)&csa);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_UNLOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_free_path(path);
xpt_bus_deregister(cam_sim_path(sim));
cam_sim_free(sim, FALSE);
}
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
ISP_UNLOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (isp->isp_osinfo.cdev) {
destroy_dev(isp->isp_osinfo.cdev);
isp->isp_osinfo.cdev = NULL;
}
if (isp->isp_osinfo.ehook_active) {
config_intrhook_disestablish(&isp->isp_osinfo.ehook);
isp->isp_osinfo.ehook_active = 0;
}
Various minor and not so minor fixes suggested by Coverity. In at least one case, it's amazing that target mode worked at all. Found by: Coverity. MFC after: 2 weeks
2010-06-02 23:31:27 +00:00
if (isp->isp_osinfo.devq != NULL) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cam_simq_free(isp->isp_osinfo.devq);
isp->isp_osinfo.devq = NULL;
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
}
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
return (0);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
static void
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_freeze_loopdown(ispsoftc_t *isp, int chan, char *msg)
Add get/set param ioctl support. Remove sim queue freezes for resource shortages. I've had too many strange race conditions where I freeze on a resource shortage but never get unfrozen. Consolidate the remaining sim queue freeze condition (for loopdown) into an inline with debug messages that allows us to track problems at ISP_LOGDEBUG0 level easier. Change a bunch of debug messages about loop down/up conditions to ISP_LOGDEBUG0 level. Remove dead isp_relsim code. Change some internal flag stuff for efficiency. Complain vociferously if we try and use our FC scratch area while it's busy being used already (I mean, if we don't have solaris' ability to sleep as an interrupt thread which would allow us to just use a p/v semaphore, at least *say* when you've just borked yourself). Add infrastructure to allow overrides of hard loopid && initiator id from boot variables. Fix the usual quota of silly bugs: + 'ktmature' needs to be per-instance. Argh. + When entering isp_watchdog, set intsok to zero, preserving old value to restore later. It's not nice to try and sleep from splsoftclock. + Fix tick overflow buglet in checking timeout value. MFC after: 1 week
2002-07-08 17:42:47 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_FC(isp)) {
struct isp_fc *fc = ISP_FC_PC(isp, chan);
if (fc->simqfrozen == 0) {
isp_prt(isp, ISP_LOGDEBUG0, "%s: freeze simq (loopdown) chan %d", msg, chan);
fc->simqfrozen = SIMQFRZ_LOOPDOWN;
xpt_freeze_simq(fc->sim, 1);
} else {
isp_prt(isp, ISP_LOGDEBUG0, "%s: mark frozen (loopdown) chan %d", msg, chan);
fc->simqfrozen |= SIMQFRZ_LOOPDOWN;
}
Add get/set param ioctl support. Remove sim queue freezes for resource shortages. I've had too many strange race conditions where I freeze on a resource shortage but never get unfrozen. Consolidate the remaining sim queue freeze condition (for loopdown) into an inline with debug messages that allows us to track problems at ISP_LOGDEBUG0 level easier. Change a bunch of debug messages about loop down/up conditions to ISP_LOGDEBUG0 level. Remove dead isp_relsim code. Change some internal flag stuff for efficiency. Complain vociferously if we try and use our FC scratch area while it's busy being used already (I mean, if we don't have solaris' ability to sleep as an interrupt thread which would allow us to just use a p/v semaphore, at least *say* when you've just borked yourself). Add infrastructure to allow overrides of hard loopid && initiator id from boot variables. Fix the usual quota of silly bugs: + 'ktmature' needs to be per-instance. Argh. + When entering isp_watchdog, set intsok to zero, preserving old value to restore later. It's not nice to try and sleep from splsoftclock. + Fix tick overflow buglet in checking timeout value. MFC after: 1 week
2002-07-08 17:42:47 +00:00
}
}
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
static void
isp_unfreeze_loopdown(ispsoftc_t *isp, int chan)
{
if (IS_FC(isp)) {
struct isp_fc *fc = ISP_FC_PC(isp, chan);
int wasfrozen = fc->simqfrozen & SIMQFRZ_LOOPDOWN;
fc->simqfrozen &= ~SIMQFRZ_LOOPDOWN;
if (wasfrozen && fc->simqfrozen == 0) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d releasing simq", __func__, chan);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
xpt_release_simq(fc->sim, 1);
}
}
}
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
static int
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
{
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
ispsoftc_t *isp;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int nr, chan, retval = ENOTTY;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp = dev->si_drv1;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
micro fix from justin
2006-03-03 07:04:43 +00:00
switch (c) {
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
case ISP_SDBLEV:
{
int olddblev = isp->isp_dblev;
isp->isp_dblev = *(int *)addr;
*(int *)addr = olddblev;
retval = 0;
break;
}
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
case ISP_GETROLE:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
chan = *(int *)addr;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
if (IS_FC(isp)) {
*(int *)addr = FCPARAM(isp, chan)->role;
} else {
*(int *)addr = SDPARAM(isp, chan)->role;
}
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
retval = 0;
break;
case ISP_SETROLE:
nr = *(int *)addr;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
chan = nr >> 8;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
nr &= 0xff;
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
if (nr & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) {
retval = EINVAL;
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_FC(isp)) {
Accomodate old style XPT_IMMED_NOTIFY and XPT_NOTIFY_ACK so that we at least don't panic. We don't really support dual role mode (INITIATOR/TARGET) any more. We should but it's broken and will take a fair amount of effort to fix and correctly manage both initiator and target roles sharing the port database. So, for now, disallow it.
2009-09-15 02:25:03 +00:00
/*
* We don't really support dual role at present on FC cards.
*
* We should, but a bunch of things are currently broken,
* so don't allow it.
*/
if (nr == ISP_ROLE_BOTH) {
isp_prt(isp, ISP_LOGERR, "cannot support dual role at present");
retval = EINVAL;
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*(int *)addr = FCPARAM(isp, chan)->role;
#ifdef ISP_INTERNAL_TARGET
ISP_LOCK(isp);
retval = isp_fc_change_role(isp, chan, nr);
ISP_UNLOCK(isp);
#else
FCPARAM(isp, chan)->role = nr;
#endif
} else {
*(int *)addr = SDPARAM(isp, chan)->role;
SDPARAM(isp, chan)->role = nr;
}
retval = 0;
break;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
case ISP_RESETHBA:
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_LOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#ifdef ISP_TARGET_MODE
isp_del_all_wwn_entries(isp, ISP_NOCHAN);
#endif
isp_reinit(isp, 0);
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_UNLOCK(isp);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
retval = 0;
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Reorder some of the ioctls and add a few new ones. MFC after: 1 day
2002-02-21 23:30:05 +00:00
case ISP_RESCAN:
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
if (IS_FC(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
chan = *(int *)addr;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_LOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (isp_fc_runstate(isp, chan, 5 * 1000000)) {
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
retval = EIO;
} else {
retval = 0;
}
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_UNLOCK(isp);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
case ISP_FC_LIP:
if (IS_FC(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
chan = *(int *)addr;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
break;
}
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_LOCK(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (isp_control(isp, ISPCTL_SEND_LIP, chan)) {
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
retval = EIO;
} else {
retval = 0;
}
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_UNLOCK(isp);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
break;
case ISP_FC_GETDINFO:
{
struct isp_fc_device *ifc = (struct isp_fc_device *) addr;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
fcportdb_t *lp;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
Clean up the ioctl to not process nonsense on SCSI isp cards. MFC after: 1 month
2006-07-10 22:39:32 +00:00
if (IS_SCSI(isp)) {
break;
}
Get rid of a couple of Coverity found sign comparison errors. Approved by: re (Ken) MFC after: 3 days
2007-07-10 07:55:59 +00:00
if (ifc->loopid >= MAX_FC_TARG) {
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
retval = EINVAL;
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
lp = &FCPARAM(isp, ifc->chan)->portdb[ifc->loopid];
if (lp->state == FC_PORTDB_STATE_VALID || lp->target_mode) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ifc->role = (lp->prli_word3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
ifc->loopid = lp->handle;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
ifc->portid = lp->portid;
ifc->node_wwn = lp->node_wwn;
ifc->port_wwn = lp->port_wwn;
retval = 0;
} else {
retval = ENODEV;
}
break;
}
Implement REDUCED INTERRUPT OPERATION usage form FC cards- this allows the firmware to delay completion of commands so that it can attempt to batch a bunch of completions at once- either returning 16 bit handles in mailbox registers, or in a resposne queue entry that has a whole wad of 16 bit handles. Distinguish between 2300 and 2312 chipsets- if only because the revisions on the chips have different meanings. Add more instrumentation plus ISP_GET_STATS and ISP_CLR_STATS ioctls. Run up the maximum number of response queue entities we'll look at per interrupt. If we haven't set HBA role yet, always return success from isp_fc_runstate. MFC after: 2 weeks
2002-01-03 20:43:22 +00:00
case ISP_GET_STATS:
{
isp_stats_t *sp = (isp_stats_t *) addr;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_MEMZERO(sp, sizeof (*sp));
Implement REDUCED INTERRUPT OPERATION usage form FC cards- this allows the firmware to delay completion of commands so that it can attempt to batch a bunch of completions at once- either returning 16 bit handles in mailbox registers, or in a resposne queue entry that has a whole wad of 16 bit handles. Distinguish between 2300 and 2312 chipsets- if only because the revisions on the chips have different meanings. Add more instrumentation plus ISP_GET_STATS and ISP_CLR_STATS ioctls. Run up the maximum number of response queue entities we'll look at per interrupt. If we haven't set HBA role yet, always return success from isp_fc_runstate. MFC after: 2 weeks
2002-01-03 20:43:22 +00:00
sp->isp_stat_version = ISP_STATS_VERSION;
sp->isp_type = isp->isp_type;
sp->isp_revision = isp->isp_revision;
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_LOCK(isp);
Implement REDUCED INTERRUPT OPERATION usage form FC cards- this allows the firmware to delay completion of commands so that it can attempt to batch a bunch of completions at once- either returning 16 bit handles in mailbox registers, or in a resposne queue entry that has a whole wad of 16 bit handles. Distinguish between 2300 and 2312 chipsets- if only because the revisions on the chips have different meanings. Add more instrumentation plus ISP_GET_STATS and ISP_CLR_STATS ioctls. Run up the maximum number of response queue entities we'll look at per interrupt. If we haven't set HBA role yet, always return success from isp_fc_runstate. MFC after: 2 weeks
2002-01-03 20:43:22 +00:00
sp->isp_stats[ISP_INTCNT] = isp->isp_intcnt;
sp->isp_stats[ISP_INTBOGUS] = isp->isp_intbogus;
sp->isp_stats[ISP_INTMBOXC] = isp->isp_intmboxc;
sp->isp_stats[ISP_INGOASYNC] = isp->isp_intoasync;
sp->isp_stats[ISP_RSLTCCMPLT] = isp->isp_rsltccmplt;
sp->isp_stats[ISP_FPHCCMCPLT] = isp->isp_fphccmplt;
sp->isp_stats[ISP_RSCCHIWAT] = isp->isp_rscchiwater;
sp->isp_stats[ISP_FPCCHIWAT] = isp->isp_fpcchiwater;
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_UNLOCK(isp);
Implement REDUCED INTERRUPT OPERATION usage form FC cards- this allows the firmware to delay completion of commands so that it can attempt to batch a bunch of completions at once- either returning 16 bit handles in mailbox registers, or in a resposne queue entry that has a whole wad of 16 bit handles. Distinguish between 2300 and 2312 chipsets- if only because the revisions on the chips have different meanings. Add more instrumentation plus ISP_GET_STATS and ISP_CLR_STATS ioctls. Run up the maximum number of response queue entities we'll look at per interrupt. If we haven't set HBA role yet, always return success from isp_fc_runstate. MFC after: 2 weeks
2002-01-03 20:43:22 +00:00
retval = 0;
break;
}
case ISP_CLR_STATS:
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_LOCK(isp);
Implement REDUCED INTERRUPT OPERATION usage form FC cards- this allows the firmware to delay completion of commands so that it can attempt to batch a bunch of completions at once- either returning 16 bit handles in mailbox registers, or in a resposne queue entry that has a whole wad of 16 bit handles. Distinguish between 2300 and 2312 chipsets- if only because the revisions on the chips have different meanings. Add more instrumentation plus ISP_GET_STATS and ISP_CLR_STATS ioctls. Run up the maximum number of response queue entities we'll look at per interrupt. If we haven't set HBA role yet, always return success from isp_fc_runstate. MFC after: 2 weeks
2002-01-03 20:43:22 +00:00
isp->isp_intcnt = 0;
isp->isp_intbogus = 0;
isp->isp_intmboxc = 0;
isp->isp_intoasync = 0;
isp->isp_rsltccmplt = 0;
isp->isp_fphccmplt = 0;
isp->isp_rscchiwater = 0;
isp->isp_fpcchiwater = 0;
Remove some ioctls that were ill-thought out. There is no user impact as no softwware using these ioctls was ever committed. Redo locking for ispioctl.
2007-06-11 19:15:49 +00:00
ISP_UNLOCK(isp);
Implement REDUCED INTERRUPT OPERATION usage form FC cards- this allows the firmware to delay completion of commands so that it can attempt to batch a bunch of completions at once- either returning 16 bit handles in mailbox registers, or in a resposne queue entry that has a whole wad of 16 bit handles. Distinguish between 2300 and 2312 chipsets- if only because the revisions on the chips have different meanings. Add more instrumentation plus ISP_GET_STATS and ISP_CLR_STATS ioctls. Run up the maximum number of response queue entities we'll look at per interrupt. If we haven't set HBA role yet, always return success from isp_fc_runstate. MFC after: 2 weeks
2002-01-03 20:43:22 +00:00
retval = 0;
break;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
case ISP_FC_GETHINFO:
{
struct isp_hba_device *hba = (struct isp_hba_device *) addr;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int chan = hba->fc_channel;
Clean up the ioctl to not process nonsense on SCSI isp cards. MFC after: 1 month
2006-07-10 22:39:32 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (chan < 0 || chan >= isp->isp_nchan) {
retval = ENXIO;
break;
}
Add firmware major, minor and micro revsions to the ISP_FC_GETHINFO ioctl structure.
2004-01-23 23:22:11 +00:00
hba->fc_fw_major = ISP_FW_MAJORX(isp->isp_fwrev);
hba->fc_fw_minor = ISP_FW_MINORX(isp->isp_fwrev);
hba->fc_fw_micro = ISP_FW_MICROX(isp->isp_fwrev);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
hba->fc_nchannels = isp->isp_nchan;
Clean up the ioctl to not process nonsense on SCSI isp cards. MFC after: 1 month
2006-07-10 22:39:32 +00:00
if (IS_FC(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
hba->fc_nports = MAX_FC_TARG;
hba->fc_speed = FCPARAM(isp, hba->fc_channel)->isp_gbspeed;
hba->fc_topology = FCPARAM(isp, chan)->isp_topo + 1;
hba->fc_loopid = FCPARAM(isp, chan)->isp_loopid;
hba->nvram_node_wwn = FCPARAM(isp, chan)->isp_wwnn_nvram;
hba->nvram_port_wwn = FCPARAM(isp, chan)->isp_wwpn_nvram;
hba->active_node_wwn = FCPARAM(isp, chan)->isp_wwnn;
hba->active_port_wwn = FCPARAM(isp, chan)->isp_wwpn;
} else {
hba->fc_nports = MAX_TARGETS;
hba->fc_speed = 0;
hba->fc_topology = 0;
hba->nvram_node_wwn = 0ull;
hba->nvram_port_wwn = 0ull;
hba->active_node_wwn = 0ull;
hba->active_port_wwn = 0ull;
Clean up the ioctl to not process nonsense on SCSI isp cards. MFC after: 1 month
2006-07-10 22:39:32 +00:00
}
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
retval = 0;
break;
}
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
case ISP_TSK_MGMT:
{
int needmarker;
struct isp_fc_tsk_mgmt *fct = (struct isp_fc_tsk_mgmt *) addr;
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
uint16_t loopid;
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
mbreg_t mbs;
if (IS_SCSI(isp)) {
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
chan = fct->chan;
if (chan < 0 || chan >= isp->isp_nchan) {
retval = -ENXIO;
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
needmarker = retval = 0;
loopid = fct->loopid;
ISP_LOCK(isp);
if (IS_24XX(isp)) {
uint8_t local[QENTRY_LEN];
isp24xx_tmf_t *tmf;
isp24xx_statusreq_t *sp;
fcparam *fcp = FCPARAM(isp, chan);
fcportdb_t *lp;
int i;
for (i = 0; i < MAX_FC_TARG; i++) {
lp = &fcp->portdb[i];
if (lp->handle == loopid) {
break;
}
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (i == MAX_FC_TARG) {
retval = ENXIO;
ISP_UNLOCK(isp);
break;
}
/* XXX VALIDATE LP XXX */
tmf = (isp24xx_tmf_t *) local;
ISP_MEMZERO(tmf, QENTRY_LEN);
tmf->tmf_header.rqs_entry_type = RQSTYPE_TSK_MGMT;
tmf->tmf_header.rqs_entry_count = 1;
tmf->tmf_nphdl = lp->handle;
tmf->tmf_delay = 2;
tmf->tmf_timeout = 2;
tmf->tmf_tidlo = lp->portid;
tmf->tmf_tidhi = lp->portid >> 16;
tmf->tmf_vpidx = ISP_GET_VPIDX(isp, chan);
tmf->tmf_lun[1] = fct->lun & 0xff;
if (fct->lun >= 256) {
tmf->tmf_lun[0] = 0x40 | (fct->lun >> 8);
}
switch (fct->action) {
case IPT_CLEAR_ACA:
tmf->tmf_flags = ISP24XX_TMF_CLEAR_ACA;
break;
case IPT_TARGET_RESET:
tmf->tmf_flags = ISP24XX_TMF_TARGET_RESET;
needmarker = 1;
break;
case IPT_LUN_RESET:
tmf->tmf_flags = ISP24XX_TMF_LUN_RESET;
needmarker = 1;
break;
case IPT_CLEAR_TASK_SET:
tmf->tmf_flags = ISP24XX_TMF_CLEAR_TASK_SET;
needmarker = 1;
break;
case IPT_ABORT_TASK_SET:
tmf->tmf_flags = ISP24XX_TMF_ABORT_TASK_SET;
needmarker = 1;
break;
default:
retval = EINVAL;
break;
}
if (retval) {
ISP_UNLOCK(isp);
break;
}
MBSINIT(&mbs, MBOX_EXEC_COMMAND_IOCB_A64, MBLOGALL, 5000000);
mbs.param[1] = QENTRY_LEN;
mbs.param[2] = DMA_WD1(fcp->isp_scdma);
mbs.param[3] = DMA_WD0(fcp->isp_scdma);
mbs.param[6] = DMA_WD3(fcp->isp_scdma);
mbs.param[7] = DMA_WD2(fcp->isp_scdma);
if (FC_SCRATCH_ACQUIRE(isp, chan)) {
ISP_UNLOCK(isp);
retval = ENOMEM;
break;
}
isp_put_24xx_tmf(isp, tmf, fcp->isp_scratch);
- Use the correct DMA tag/map pair for synchronize the FC scratch area. - Allocate coherent DMA memory for the request/response queue area and and the FC scratch area. These changes allow isp(4) to work properly on sparc64 with usage of the IOMMU streaming buffers enabled. Approved by: mjacob MFC after: 2 weeks
2011-02-14 21:50:51 +00:00
MEMORYBARRIER(isp, SYNC_SFORDEV, 0, QENTRY_LEN, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sp = (isp24xx_statusreq_t *) local;
sp->req_completion_status = 1;
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
retval = isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs);
- Use the correct DMA tag/map pair for synchronize the FC scratch area. - Allocate coherent DMA memory for the request/response queue area and and the FC scratch area. These changes allow isp(4) to work properly on sparc64 with usage of the IOMMU streaming buffers enabled. Approved by: mjacob MFC after: 2 weeks
2011-02-14 21:50:51 +00:00
MEMORYBARRIER(isp, SYNC_SFORCPU, QENTRY_LEN, QENTRY_LEN, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_get_24xx_response(isp, &((isp24xx_statusreq_t *)fcp->isp_scratch)[1], sp);
FC_SCRATCH_RELEASE(isp, chan);
if (retval || sp->req_completion_status != 0) {
FC_SCRATCH_RELEASE(isp, chan);
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
retval = EIO;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
if (retval == 0) {
if (needmarker) {
fcp->sendmarker = 1;
}
}
} else {
MBSINIT(&mbs, 0, MBLOGALL, 0);
if (ISP_CAP_2KLOGIN(isp) == 0) {
loopid <<= 8;
}
switch (fct->action) {
case IPT_CLEAR_ACA:
mbs.param[0] = MBOX_CLEAR_ACA;
mbs.param[1] = loopid;
mbs.param[2] = fct->lun;
break;
case IPT_TARGET_RESET:
mbs.param[0] = MBOX_TARGET_RESET;
mbs.param[1] = loopid;
needmarker = 1;
break;
case IPT_LUN_RESET:
mbs.param[0] = MBOX_LUN_RESET;
mbs.param[1] = loopid;
mbs.param[2] = fct->lun;
needmarker = 1;
break;
case IPT_CLEAR_TASK_SET:
mbs.param[0] = MBOX_CLEAR_TASK_SET;
mbs.param[1] = loopid;
mbs.param[2] = fct->lun;
needmarker = 1;
break;
case IPT_ABORT_TASK_SET:
mbs.param[0] = MBOX_ABORT_TASK_SET;
mbs.param[1] = loopid;
mbs.param[2] = fct->lun;
needmarker = 1;
break;
default:
retval = EINVAL;
break;
}
if (retval == 0) {
if (needmarker) {
FCPARAM(isp, chan)->sendmarker = 1;
}
retval = isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs);
if (retval) {
retval = EIO;
}
}
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_UNLOCK(isp);
Add an ioctl framework for doing FC task management functions from a user space tool- useful for doing FC target mode certification.
2005-10-29 02:46:59 +00:00
break;
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
default:
break;
}
return (retval);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Begin the process of moving info to sysctl stuff for FreeBSD by providing OIDs for WWNN/WWPN and Initiator ID.
2006-09-26 04:59:52 +00:00
static void
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_intr_enable(void *arg)
Begin the process of moving info to sysctl stuff for FreeBSD by providing OIDs for WWNN/WWPN and Initiator ID.
2006-09-26 04:59:52 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int chan;
ispsoftc_t *isp = arg;
ISP_LOCK(isp);
for (chan = 0; chan < isp->isp_nchan; chan++) {
if (IS_FC(isp)) {
if (FCPARAM(isp, chan)->role != ISP_ROLE_NONE) {
ISP_ENABLE_INTS(isp);
break;
}
} else {
if (SDPARAM(isp, chan)->role != ISP_ROLE_NONE) {
ISP_ENABLE_INTS(isp);
break;
}
}
Begin the process of moving info to sysctl stuff for FreeBSD by providing OIDs for WWNN/WWPN and Initiator ID.
2006-09-26 04:59:52 +00:00
}
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
isp->isp_osinfo.ehook_active = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_UNLOCK(isp);
/* Release our hook so that the boot can continue. */
config_intrhook_disestablish(&isp->isp_osinfo.ehook);
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* Local Inlines
*/
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE int isp_get_pcmd(ispsoftc_t *, union ccb *);
static ISP_INLINE void isp_free_pcmd(ispsoftc_t *, union ccb *);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE int
isp_get_pcmd(ispsoftc_t *isp, union ccb *ccb)
Add in config_hook for catching when interrupts are safe- this allows us to not the ints are ok and also to (re)ENABLE isp interrupts. Remove all splcam()/splx() invocates and replace them with ISP_LOCK/ISP_UNLOCK macros.
2000-07-04 01:05:43 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_PCMD(ccb) = isp->isp_osinfo.pcmd_free;
if (ISP_PCMD(ccb) == NULL) {
return (-1);
Do some cleanup based upon adapter role- mainly not enabling interrupts if we're ISP_ROLE_NONE. Change ISPASYNC_LOGGED_INOUT to ISPASYNC_PROMENADE. Make sure we note if something is a fabric device. Target mode: Finally fix (to a first approximation) SCSI Target Mode again- we needed to correctly check against CAM_TARGET_WILDCARD and CAM_LUN_WILDCARD so that targbh won't confuse us. Comment out the drainqueue stuff for now. Use isp_fc_runstate instead if isp_control/ISPCTL_FCLINK_TEST.
2001-02-11 03:47:39 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp->isp_osinfo.pcmd_free = ((struct isp_pcmd *)ISP_PCMD(ccb))->next;
return (0);
Add in config_hook for catching when interrupts are safe- this allows us to not the ints are ok and also to (re)ENABLE isp interrupts. Remove all splcam()/splx() invocates and replace them with ISP_LOCK/ISP_UNLOCK macros.
2000-07-04 01:05:43 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE void
isp_free_pcmd(ispsoftc_t *isp, union ccb *ccb)
{
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (ISP_PCMD(ccb)) {
Fix an oops where we wiped out DMA maps. Don't allocate extended command space for anything less than a 2300. MFC after: 1 month X-MFC: 238869
2012-08-12 20:45:47 +00:00
#ifdef ISP_TARGET_MODE
PISP_PCMD(ccb)->datalen = 0;
PISP_PCMD(ccb)->totslen = 0;
PISP_PCMD(ccb)->cumslen = 0;
PISP_PCMD(ccb)->crn = 0;
#endif
PISP_PCMD(ccb)->next = isp->isp_osinfo.pcmd_free;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp->isp_osinfo.pcmd_free = ISP_PCMD(ccb);
ISP_PCMD(ccb) = NULL;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
* Put the target mode functions here, because some are inlines
*/
#ifdef ISP_TARGET_MODE
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
static ISP_INLINE void isp_tmlock(ispsoftc_t *, const char *);
static ISP_INLINE void isp_tmunlk(ispsoftc_t *);
static ISP_INLINE int is_any_lun_enabled(ispsoftc_t *, int);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE int is_lun_enabled(ispsoftc_t *, int, lun_id_t);
static ISP_INLINE tstate_t *get_lun_statep(ispsoftc_t *, int, lun_id_t);
static ISP_INLINE tstate_t *get_lun_statep_from_tag(ispsoftc_t *, int, uint32_t);
static ISP_INLINE void rls_lun_statep(ispsoftc_t *, tstate_t *);
static ISP_INLINE inot_private_data_t *get_ntp_from_tagdata(ispsoftc_t *, uint32_t, uint32_t, tstate_t **);
static ISP_INLINE atio_private_data_t *isp_get_atpd(ispsoftc_t *, tstate_t *, uint32_t);
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
static ISP_INLINE atio_private_data_t *isp_find_atpd(ispsoftc_t *, tstate_t *, uint32_t);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE void isp_put_atpd(ispsoftc_t *, tstate_t *, atio_private_data_t *);
static ISP_INLINE inot_private_data_t *isp_get_ntpd(ispsoftc_t *, tstate_t *);
static ISP_INLINE inot_private_data_t *isp_find_ntpd(ispsoftc_t *, tstate_t *, uint32_t, uint32_t);
static ISP_INLINE void isp_put_ntpd(ispsoftc_t *, tstate_t *, inot_private_data_t *);
static cam_status create_lun_state(ispsoftc_t *, int, struct cam_path *, tstate_t **);
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
static void destroy_lun_state(ispsoftc_t *, tstate_t *);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void isp_enable_lun(ispsoftc_t *, union ccb *);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
static cam_status isp_enable_deferred_luns(ispsoftc_t *, int);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static cam_status isp_enable_deferred(ispsoftc_t *, int, lun_id_t);
static void isp_disable_lun(ispsoftc_t *, union ccb *);
static int isp_enable_target_mode(ispsoftc_t *, int);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
static int isp_disable_target_mode(ispsoftc_t *, int);
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
static void isp_ledone(ispsoftc_t *, lun_entry_t *);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
static timeout_t isp_refire_putback_atio;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
static timeout_t isp_refire_notify_ack;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
static void isp_complete_ctio(union ccb *);
static void isp_target_putback_atio(union ccb *);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
enum Start_Ctio_How { FROM_CAM, FROM_TIMER, FROM_SRR, FROM_CTIO_DONE };
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
static void isp_target_start_ctio(ispsoftc_t *, union ccb *, enum Start_Ctio_How);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void isp_handle_platform_atio(ispsoftc_t *, at_entry_t *);
static void isp_handle_platform_atio2(ispsoftc_t *, at2_entry_t *);
static void isp_handle_platform_atio7(ispsoftc_t *, at7_entry_t *);
static void isp_handle_platform_ctio(ispsoftc_t *, void *);
static void isp_handle_platform_notify_scsi(ispsoftc_t *, in_entry_t *);
static void isp_handle_platform_notify_fc(ispsoftc_t *, in_fcentry_t *);
static void isp_handle_platform_notify_24xx(ispsoftc_t *, in_fcentry_24xx_t *);
static int isp_handle_platform_target_notify_ack(ispsoftc_t *, isp_notify_t *);
static void isp_handle_platform_target_tmf(ispsoftc_t *, isp_notify_t *);
static void isp_target_mark_aborted(ispsoftc_t *, union ccb *);
static void isp_target_mark_aborted_early(ispsoftc_t *, tstate_t *, uint32_t);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
static ISP_INLINE void
isp_tmlock(ispsoftc_t *isp, const char *msg)
{
while (isp->isp_osinfo.tmbusy) {
isp->isp_osinfo.tmwanted = 1;
mtx_sleep(isp, &isp->isp_lock, PRIBIO, msg, 0);
}
isp->isp_osinfo.tmbusy = 1;
}
static ISP_INLINE void
isp_tmunlk(ispsoftc_t *isp)
{
isp->isp_osinfo.tmbusy = 0;
if (isp->isp_osinfo.tmwanted) {
isp->isp_osinfo.tmwanted = 0;
wakeup(isp);
}
}
static ISP_INLINE int
is_any_lun_enabled(ispsoftc_t *isp, int bus)
{
struct tslist *lhp;
int i;
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
if (SLIST_FIRST(lhp))
return (1);
}
return (0);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE int
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
is_lun_enabled(ispsoftc_t *isp, int bus, lun_id_t lun)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
tstate_t *tptr;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct tslist *lhp;
ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(lun)], lhp);
SLIST_FOREACH(tptr, lhp, next) {
if (xpt_path_lun_id(tptr->owner) == lun) {
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
return (1);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
return (0);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
dump_tstates(ispsoftc_t *isp, int bus)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int i, j;
struct tslist *lhp;
tstate_t *tptr = NULL;
if (bus >= isp->isp_nchan) {
return;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
j = 0;
SLIST_FOREACH(tptr, lhp, next) {
xpt_print(tptr->owner, "[%d, %d] atio_cnt=%d inot_cnt=%d\n", i, j, tptr->atio_count, tptr->inot_count);
j++;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
}
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE tstate_t *
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
get_lun_statep(ispsoftc_t *isp, int bus, lun_id_t lun)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
tstate_t *tptr = NULL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct tslist *lhp;
int i;
if (bus < isp->isp_nchan) {
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
SLIST_FOREACH(tptr, lhp, next) {
if (xpt_path_lun_id(tptr->owner) == lun) {
tptr->hold++;
return (tptr);
}
}
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (NULL);
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE tstate_t *
get_lun_statep_from_tag(ispsoftc_t *isp, int bus, uint32_t tagval)
{
tstate_t *tptr = NULL;
atio_private_data_t *atp;
struct tslist *lhp;
int i;
if (bus < isp->isp_nchan && tagval != 0) {
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
SLIST_FOREACH(tptr, lhp, next) {
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, tagval);
if (atp) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tptr->hold++;
return (tptr);
}
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
return (NULL);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE inot_private_data_t *
get_ntp_from_tagdata(ispsoftc_t *isp, uint32_t tag_id, uint32_t seq_id, tstate_t **rslt)
{
inot_private_data_t *ntp;
tstate_t *tptr;
struct tslist *lhp;
int bus, i;
for (bus = 0; bus < isp->isp_nchan; bus++) {
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
SLIST_FOREACH(tptr, lhp, next) {
ntp = isp_find_ntpd(isp, tptr, tag_id, seq_id);
if (ntp) {
*rslt = tptr;
tptr->hold++;
return (ntp);
}
}
}
}
return (NULL);
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE void
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
rls_lun_statep(ispsoftc_t *isp, tstate_t *tptr)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
KASSERT((tptr->hold), ("tptr not held"));
tptr->hold--;
}
static void
isp_tmcmd_restart(ispsoftc_t *isp)
{
inot_private_data_t *ntp;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
inot_private_data_t *restart_queue;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tstate_t *tptr;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
union ccb *ccb;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct tslist *lhp;
int bus, i;
for (bus = 0; bus < isp->isp_nchan; bus++) {
for (i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
SLIST_FOREACH(tptr, lhp, next) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if ((restart_queue = tptr->restart_queue) != NULL)
tptr->restart_queue = NULL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
while (restart_queue) {
ntp = restart_queue;
restart_queue = ntp->rd.nt.nt_hba;
if (IS_24XX(isp)) {
isp_prt(isp, ISP_LOGTDEBUG0, "%s: restarting resrc deprived %x", __func__, ((at7_entry_t *)ntp->rd.data)->at_rxid);
isp_handle_platform_atio7(isp, (at7_entry_t *) ntp->rd.data);
} else {
isp_prt(isp, ISP_LOGTDEBUG0, "%s: restarting resrc deprived %x", __func__, ((at2_entry_t *)ntp->rd.data)->at_rxid);
isp_handle_platform_atio2(isp, (at2_entry_t *) ntp->rd.data);
}
isp_put_ntpd(isp, tptr, ntp);
if (tptr->restart_queue && restart_queue != NULL) {
ntp = tptr->restart_queue;
tptr->restart_queue = restart_queue;
while (restart_queue->rd.nt.nt_hba) {
restart_queue = restart_queue->rd.nt.nt_hba;
}
restart_queue->rd.nt.nt_hba = ntp;
break;
}
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* We only need to do this once per tptr
*/
if (!TAILQ_EMPTY(&tptr->waitq)) {
ccb = (union ccb *)TAILQ_LAST(&tptr->waitq, isp_ccbq);
TAILQ_REMOVE(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
isp_target_start_ctio(isp, ccb, FROM_TIMER);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
}
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE atio_private_data_t *
isp_get_atpd(ispsoftc_t *isp, tstate_t *tptr, uint32_t tag)
Begin to implement target mode that for Fibre Channel has a private per-command component that we *don't* try and pass thru CAM. CAM just is too risky and too much of a pain- structures get copied, but not all info of interest can be considered safely transported thru all consumers (including user space) from the incoming ATIO to the outgoing CTIO- it's just much safer to have a buddy structure, identified by the command's tag which *does* make it thru safely. Pay attention to link speed and report 200MB/s xfer speed for a 23XX card in 2GPs mode. MFC after: 1 week
2001-10-01 03:48:42 +00:00
{
atio_private_data_t *atp;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = LIST_FIRST(&tptr->atfree);
if (atp) {
LIST_REMOVE(atp, next);
atp->tag = tag;
LIST_INSERT_HEAD(&tptr->atused[ATPDPHASH(tag)], atp, next);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
return (atp);
}
static ISP_INLINE atio_private_data_t *
isp_find_atpd(ispsoftc_t *isp, tstate_t *tptr, uint32_t tag)
{
atio_private_data_t *atp;
LIST_FOREACH(atp, &tptr->atused[ATPDPHASH(tag)], next) {
if (atp->tag == tag)
Begin to implement target mode that for Fibre Channel has a private per-command component that we *don't* try and pass thru CAM. CAM just is too risky and too much of a pain- structures get copied, but not all info of interest can be considered safely transported thru all consumers (including user space) from the incoming ATIO to the outgoing CTIO- it's just much safer to have a buddy structure, identified by the command's tag which *does* make it thru safely. Pay attention to link speed and report 200MB/s xfer speed for a 23XX card in 2GPs mode. MFC after: 1 week
2001-10-01 03:48:42 +00:00
return (atp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
return (NULL);
}
static ISP_INLINE void
isp_put_atpd(ispsoftc_t *isp, tstate_t *tptr, atio_private_data_t *atp)
{
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (atp->ests) {
isp_put_ecmd(isp, atp->ests);
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
LIST_REMOVE(atp, next);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
memset(atp, 0, sizeof (*atp));
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
LIST_INSERT_HEAD(&tptr->atfree, atp, next);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
static void
isp_dump_atpd(ispsoftc_t *isp, tstate_t *tptr)
{
atio_private_data_t *atp;
const char *states[8] = { "Free", "ATIO", "CAM", "CTIO", "LAST_CTIO", "PDON", "?6", "7" };
for (atp = tptr->atpool; atp < &tptr->atpool[ATPDPSIZE]; atp++) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
xpt_print(tptr->owner, "ATP: [0x%x] origdlen %u bytes_xfrd %u lun %u nphdl 0x%04x s_id 0x%06x d_id 0x%06x oxid 0x%04x state %s\n",
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp->tag, atp->orig_datalen, atp->bytes_xfered, atp->lun, atp->nphdl, atp->sid, atp->portid, atp->oxid, states[atp->state & 0x7]);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
}
static ISP_INLINE inot_private_data_t *
isp_get_ntpd(ispsoftc_t *isp, tstate_t *tptr)
{
inot_private_data_t *ntp;
ntp = tptr->ntfree;
if (ntp) {
tptr->ntfree = ntp->next;
}
return (ntp);
}
static ISP_INLINE inot_private_data_t *
isp_find_ntpd(ispsoftc_t *isp, tstate_t *tptr, uint32_t tag_id, uint32_t seq_id)
{
inot_private_data_t *ntp;
for (ntp = tptr->ntpool; ntp < &tptr->ntpool[ATPDPSIZE]; ntp++) {
if (ntp->rd.tag_id == tag_id && ntp->rd.seq_id == seq_id) {
return (ntp);
}
Begin to implement target mode that for Fibre Channel has a private per-command component that we *don't* try and pass thru CAM. CAM just is too risky and too much of a pain- structures get copied, but not all info of interest can be considered safely transported thru all consumers (including user space) from the incoming ATIO to the outgoing CTIO- it's just much safer to have a buddy structure, identified by the command's tag which *does* make it thru safely. Pay attention to link speed and report 200MB/s xfer speed for a 23XX card in 2GPs mode. MFC after: 1 week
2001-10-01 03:48:42 +00:00
}
return (NULL);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE void
isp_put_ntpd(ispsoftc_t *isp, tstate_t *tptr, inot_private_data_t *ntp)
{
ntp->rd.tag_id = ntp->rd.seq_id = 0;
ntp->next = tptr->ntfree;
tptr->ntfree = ntp;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
static cam_status
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
create_lun_state(ispsoftc_t *isp, int bus, struct cam_path *path, tstate_t **rslt)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
cam_status status;
lun_id_t lun;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct tslist *lhp;
tstate_t *tptr;
int i;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
lun = xpt_path_lun_id(path);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lun != CAM_LUN_WILDCARD) {
if (lun >= ISP_MAX_LUNS(isp)) {
return (CAM_LUN_INVALID);
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
if (is_lun_enabled(isp, bus, lun)) {
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
return (CAM_LUN_ALRDY_ENA);
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
tptr = malloc(sizeof (tstate_t), M_DEVBUF, M_NOWAIT|M_ZERO);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (tptr == NULL) {
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
return (CAM_RESRC_UNAVAIL);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
status = xpt_create_path(&tptr->owner, NULL, xpt_path_path_id(path), xpt_path_target_id(path), lun);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
if (status != CAM_REQ_CMP) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
free(tptr, M_DEVBUF);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
return (status);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
SLIST_INIT(&tptr->atios);
SLIST_INIT(&tptr->inots);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
TAILQ_INIT(&tptr->waitq);
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
LIST_INIT(&tptr->atfree);
for (i = ATPDPSIZE-1; i >= 0; i--)
LIST_INSERT_HEAD(&tptr->atfree, &tptr->atpool[i], next);
for (i = 0; i < ATPDPHASHSIZE; i++)
LIST_INIT(&tptr->atused[i]);
for (i = 0; i < ATPDPSIZE-1; i++)
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tptr->ntpool[i].next = &tptr->ntpool[i+1];
tptr->ntfree = tptr->ntpool;
tptr->hold = 1;
ISP_GET_PC_ADDR(isp, bus, lun_hash[LUN_HASH_FUNC(xpt_path_lun_id(tptr->owner))], lhp);
SLIST_INSERT_HEAD(lhp, tptr, next);
*rslt = tptr;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, path, "created tstate\n");
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
return (CAM_REQ_CMP);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static ISP_INLINE void
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
destroy_lun_state(ispsoftc_t *isp, tstate_t *tptr)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
On lun disable, complete all INOTs and ATIOs with CAM_REQ_ABORTED. Reviewed by: ken (silently), chuck MFC after: 3 weeks
2012-08-16 15:32:16 +00:00
union ccb *ccb;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct tslist *lhp;
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
KASSERT((tptr->hold != 0), ("tptr is not held"));
KASSERT((tptr->hold == 1), ("tptr still held (%d)", tptr->hold));
On lun disable, complete all INOTs and ATIOs with CAM_REQ_ABORTED. Reviewed by: ken (silently), chuck MFC after: 3 weeks
2012-08-16 15:32:16 +00:00
do {
ccb = (union ccb *)SLIST_FIRST(&tptr->atios);
if (ccb) {
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(ccb);
}
} while (ccb);
do {
ccb = (union ccb *)SLIST_FIRST(&tptr->inots);
if (ccb) {
SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(ccb);
}
} while (ccb);
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
ISP_GET_PC_ADDR(isp, cam_sim_bus(xpt_path_sim(tptr->owner)), lun_hash[LUN_HASH_FUNC(xpt_path_lun_id(tptr->owner))], lhp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
SLIST_REMOVE(lhp, tptr, tstate, next);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, tptr->owner, "destroyed tstate\n");
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_free_path(tptr->owner);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
free(tptr, M_DEVBUF);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Enable a lun.
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
isp_enable_lun(ispsoftc_t *isp, union ccb *ccb)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Quiet GCC 4.2 warning.
2007-06-08 01:39:04 +00:00
tstate_t *tptr = NULL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int bus, tm_enabled, target_role;
target_id_t target;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
lun_id_t lun;
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* We only support either a wildcard target/lun or a target ID of zero and a non-wildcard lun
*/
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
bus = XS_CHANNEL(ccb);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
target = ccb->ccb_h.target_id;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
lun = ccb->ccb_h.target_lun;
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path, "enabling lun %u\n", lun);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (target != CAM_TARGET_WILDCARD && target != 0) {
ccb->ccb_h.status = CAM_TID_INVALID;
xpt_done(ccb);
return;
}
if (target == CAM_TARGET_WILDCARD && lun != CAM_LUN_WILDCARD) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
return;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (target != CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
return;
}
Make ISPCTL_PLOGX find a handle to log into the management server with- not hope for the best. Change some things which were gated off of 24XX to be gated off of 2K login support. Convert some isp_prt calls to xpt_print calls.
2006-12-05 07:50:23 +00:00
if (isp->isp_dblev & ISP_LOGTDEBUG0) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_print(ccb->ccb_h.path, "enabling lun 0x%x on channel %d\n", lun, bus);
Make ISPCTL_PLOGX find a handle to log into the management server with- not hope for the best. Change some things which were gated off of 24XX to be gated off of 2K login support. Convert some isp_prt calls to xpt_print calls.
2006-12-05 07:50:23 +00:00
}
various fixes
2000-08-27 23:38:44 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* Wait until we're not busy with the lun enables subsystem
*/
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp_tmlock(isp, "isp_enable_lun");
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* This is as a good a place as any to check f/w capabilities.
*/
if (IS_FC(isp)) {
if (ISP_CAP_TMODE(isp) == 0) {
xpt_print(ccb->ccb_h.path, "firmware does not support target mode\n");
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
goto done;
Do some cleanup based upon adapter role- mainly not enabling interrupts if we're ISP_ROLE_NONE. Change ISPASYNC_LOGGED_INOUT to ISPASYNC_PROMENADE. Make sure we note if something is a fabric device. Target mode: Finally fix (to a first approximation) SCSI Target Mode again- we needed to correctly check against CAM_TARGET_WILDCARD and CAM_LUN_WILDCARD so that targbh won't confuse us. Comment out the drainqueue stuff for now. Use isp_fc_runstate instead if isp_control/ISPCTL_FCLINK_TEST.
2001-02-11 03:47:39 +00:00
}
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* We *could* handle non-SCCLUN f/w, but we'd have to
* dork with our already fragile enable/disable code.
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_CAP_SCCFW(isp) == 0) {
xpt_print(ccb->ccb_h.path, "firmware not SCCLUN capable\n");
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
goto done;
various fixes
2000-08-27 23:38:44 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
target_role = (FCPARAM(isp, bus)->role & ISP_ROLE_TARGET) != 0;
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
target_role = (SDPARAM(isp, bus)->role & ISP_ROLE_TARGET) != 0;
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Create the state pointer.
* It should not already exist.
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tptr = get_lun_statep(isp, bus, lun);
if (tptr) {
ccb->ccb_h.status = CAM_LUN_ALRDY_ENA;
goto done;
}
ccb->ccb_h.status = create_lun_state(isp, bus, ccb->ccb_h.path, &tptr);
if (ccb->ccb_h.status != CAM_REQ_CMP) {
goto done;
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
}
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* We have a tricky maneuver to perform here.
*
* If target mode isn't already enabled here,
* *and* our current role includes target mode,
* we enable target mode here.
*
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_GET_PC(isp, bus, tm_enabled, tm_enabled);
if (tm_enabled == 0 && target_role != 0) {
if (isp_enable_target_mode(isp, bus)) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
destroy_lun_state(isp, tptr);
tptr = NULL;
goto done;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tm_enabled = 1;
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* Now check to see whether this bus is in target mode already.
*
* If not, a later role change into target mode will finish the job.
*/
if (tm_enabled == 0) {
ISP_SET_PC(isp, bus, tm_enable_defer, 1);
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
ccb->ccb_h.status = CAM_REQ_CMP;
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
xpt_print(ccb->ccb_h.path, "Target Mode not enabled yet- lun enable deferred\n");
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
goto done1;
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
}
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Enable the lun.
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ccb->ccb_h.status = isp_enable_deferred(isp, bus, lun);
done:
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
if (ccb->ccb_h.status != CAM_REQ_CMP) {
if (tptr) {
destroy_lun_state(isp, tptr);
tptr = NULL;
}
} else {
tptr->enabled = 1;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
done1:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (tptr) {
rls_lun_statep(isp, tptr);
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
/*
* And we're outta here....
*/
isp_tmunlk(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_done(ccb);
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
static cam_status
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_enable_deferred_luns(ispsoftc_t *isp, int bus)
{
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
tstate_t *tptr = NULL;
struct tslist *lhp;
int i, n;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_GET_PC(isp, bus, tm_enabled, i);
if (i == 1) {
return (CAM_REQ_CMP);
}
ISP_GET_PC(isp, bus, tm_enable_defer, i);
if (i == 0) {
return (CAM_REQ_CMP);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
* If this succeeds, it will set tm_enable
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*/
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
if (isp_enable_target_mode(isp, bus)) {
return (CAM_REQ_CMP_ERR);
}
isp_tmlock(isp, "isp_enable_deferred_luns");
for (n = i = 0; i < LUN_HASH_SIZE; i++) {
ISP_GET_PC_ADDR(isp, bus, lun_hash[i], lhp);
SLIST_FOREACH(tptr, lhp, next) {
tptr->hold++;
if (tptr->enabled == 0) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (isp_enable_deferred(isp, bus, xpt_path_lun_id(tptr->owner)) == CAM_REQ_CMP) {
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
tptr->enabled = 1;
n++;
}
} else {
n++;
}
tptr->hold--;
}
}
isp_tmunlk(isp);
if (n == 0) {
return (CAM_REQ_CMP_ERR);
}
ISP_SET_PC(isp, bus, tm_enable_defer, 0);
return (CAM_REQ_CMP);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
static cam_status
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_enable_deferred(ispsoftc_t *isp, int bus, lun_id_t lun)
{
cam_status status;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
int luns_already_enabled;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_GET_PC(isp, bus, tm_luns_enabled, luns_already_enabled);
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGTINFO, "%s: bus %d lun %jx luns_enabled %d", __func__, bus, (uintmax_t)lun, luns_already_enabled);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
if (IS_24XX(isp) || (IS_FC(isp) && luns_already_enabled)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
status = CAM_REQ_CMP;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int cmd_cnt, not_cnt;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_23XX(isp)) {
cmd_cnt = DFLT_CMND_CNT;
not_cnt = DFLT_INOT_CNT;
} else {
cmd_cnt = 64;
not_cnt = 8;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
status = CAM_REQ_INPROG;
isp->isp_osinfo.rptr = &status;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (isp_lun_cmd(isp, RQSTYPE_ENABLE_LUN, bus, lun == CAM_LUN_WILDCARD? 0 : lun, cmd_cnt, not_cnt)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
status = CAM_RESRC_UNAVAIL;
} else {
mtx_sleep(&status, &isp->isp_lock, PRIBIO, "isp_enable_deferred", 0);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp->isp_osinfo.rptr = NULL;
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (status == CAM_REQ_CMP) {
ISP_SET_PC(isp, bus, tm_luns_enabled, 1);
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGCONFIG|ISP_LOGTINFO, "bus %d lun %jx now enabled for target mode", bus, (uintmax_t)lun);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
return (status);
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
static void
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_disable_lun(ispsoftc_t *isp, union ccb *ccb)
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tstate_t *tptr = NULL;
int bus;
cam_status status;
target_id_t target;
lun_id_t lun;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus = XS_CHANNEL(ccb);
target = ccb->ccb_h.target_id;
lun = ccb->ccb_h.target_lun;
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0|ISP_LOGCONFIG, ccb->ccb_h.path, "disabling lun %u\n", lun);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (target != CAM_TARGET_WILDCARD && target != 0) {
ccb->ccb_h.status = CAM_TID_INVALID;
xpt_done(ccb);
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
return;
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (target == CAM_TARGET_WILDCARD && lun != CAM_LUN_WILDCARD) {
ccb->ccb_h.status = CAM_LUN_INVALID;
xpt_done(ccb);
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
return;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (target != CAM_TARGET_WILDCARD && lun == CAM_LUN_WILDCARD) {
ccb->ccb_h.status = CAM_LUN_INVALID;
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
xpt_done(ccb);
return;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* See if we're busy disabling a lun now.
*/
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp_tmlock(isp, "isp_disable_lun");
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
status = CAM_REQ_INPROG;
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* Find the state pointer.
*/
if ((tptr = get_lun_statep(isp, bus, lun)) == NULL) {
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
status = CAM_PATH_INVALID;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
goto done;
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* If we're a 24XX card, we're done.
*/
if (IS_24XX(isp)) {
status = CAM_REQ_CMP;
goto done;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* For SCC FW, we only deal with lun zero.
*/
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (IS_FC(isp) && lun > 0) {
status = CAM_REQ_CMP;
goto done;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
isp->isp_osinfo.rptr = &status;
if (isp_lun_cmd(isp, RQSTYPE_ENABLE_LUN, bus, lun, 0, 0)) {
status = CAM_RESRC_UNAVAIL;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
mtx_sleep(ccb, &isp->isp_lock, PRIBIO, "isp_disable_lun", 0);
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp->isp_osinfo.rptr = NULL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
done:
if (status == CAM_REQ_CMP) {
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
tptr->enabled = 0;
/*
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
* If we have no more luns enabled for this bus,
* delete all tracked wwns for it (if we are FC),
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
* and disable target mode.
*/
if (is_any_lun_enabled(isp, bus) == 0) {
isp_del_all_wwn_entries(isp, bus);
if (isp_disable_target_mode(isp, bus)) {
status = CAM_REQ_CMP_ERR;
}
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ccb->ccb_h.status = status;
if (status == CAM_REQ_CMP) {
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
destroy_lun_state(isp, tptr);
On lun disable, complete all INOTs and ATIOs with CAM_REQ_ABORTED. Reviewed by: ken (silently), chuck MFC after: 3 weeks
2012-08-16 15:32:16 +00:00
xpt_print(ccb->ccb_h.path, "lun now disabled for target mode\n");
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
} else {
if (tptr)
rls_lun_statep(isp, tptr);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp_tmunlk(isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_done(ccb);
}
static int
isp_enable_target_mode(ispsoftc_t *isp, int bus)
{
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
int tm_enabled;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_GET_PC(isp, bus, tm_enabled, tm_enabled);
if (tm_enabled != 0) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (0);
}
if (IS_SCSI(isp)) {
mbreg_t mbs;
MBSINIT(&mbs, MBOX_ENABLE_TARGET_MODE, MBLOGALL, 0);
mbs.param[0] = MBOX_ENABLE_TARGET_MODE;
mbs.param[1] = ENABLE_TARGET_FLAG|ENABLE_TQING_FLAG;
mbs.param[2] = bus << 7;
if (isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs) < 0 || mbs.param[0] != MBOX_COMMAND_COMPLETE) {
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp_prt(isp, ISP_LOGERR, "Unable to enable Target Role on Bus %d", bus);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (EIO);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_SET_PC(isp, bus, tm_enabled, 1);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp_prt(isp, ISP_LOGINFO, "Target Role enabled on Bus %d", bus);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (0);
}
static int
isp_disable_target_mode(ispsoftc_t *isp, int bus)
{
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
int tm_enabled;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_GET_PC(isp, bus, tm_enabled, tm_enabled);
if (tm_enabled == 0) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (0);
}
if (IS_SCSI(isp)) {
mbreg_t mbs;
MBSINIT(&mbs, MBOX_ENABLE_TARGET_MODE, MBLOGALL, 0);
mbs.param[2] = bus << 7;
if (isp_control(isp, ISPCTL_RUN_MBOXCMD, &mbs) < 0 || mbs.param[0] != MBOX_COMMAND_COMPLETE) {
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
isp_prt(isp, ISP_LOGERR, "Unable to disable Target Role on Bus %d", bus);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (EIO);
}
}
ISP_SET_PC(isp, bus, tm_enabled, 0);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGINFO, "Target Role disabled on Bus %d", bus);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (0);
}
static void
isp_ledone(ispsoftc_t *isp, lun_entry_t *lep)
{
uint32_t *rptr;
rptr = isp->isp_osinfo.rptr;
if (lep->le_status != LUN_OK) {
isp_prt(isp, ISP_LOGERR, "ENABLE/MODIFY LUN returned 0x%x", lep->le_status);
if (rptr) {
*rptr = CAM_REQ_CMP_ERR;
wakeup_one(rptr);
}
} else {
if (rptr) {
*rptr = CAM_REQ_CMP;
wakeup_one(rptr);
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
}
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
static void
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_target_start_ctio(ispsoftc_t *isp, union ccb *ccb, enum Start_Ctio_How how)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
int fctape, sendstatus, resid;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tstate_t *tptr;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
fcparam *fcp;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atio_private_data_t *atp;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
struct ccb_scsiio *cso;
uint32_t dmaresult, handle, xfrlen, sense_length, tmp;
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
uint8_t local[QENTRY_LEN];
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tptr = get_lun_statep(isp, XS_CHANNEL(ccb), XS_LUN(ccb));
if (tptr == NULL) {
tptr = get_lun_statep(isp, XS_CHANNEL(ccb), CAM_LUN_WILDCARD);
if (tptr == NULL) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] cannot find tstate pointer", __func__, ccb->csio.tag_id);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
return;
}
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: ENTRY[0x%x] how %u xfrlen %u sendstatus %d sense_len %u", __func__, ccb->csio.tag_id, how, ccb->csio.dxfer_len,
(ccb->ccb_h.flags & CAM_SEND_STATUS) != 0, ((ccb->ccb_h.flags & CAM_SEND_SENSE)? ccb->csio.sense_len : 0));
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
switch (how) {
case FROM_TIMER:
case FROM_CAM:
/*
* Insert at the tail of the list, if any, waiting CTIO CCBs
*/
TAILQ_INSERT_TAIL(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
case FROM_SRR:
case FROM_CTIO_DONE:
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
while (TAILQ_FIRST(&tptr->waitq) != NULL) {
ccb = (union ccb *) TAILQ_FIRST(&tptr->waitq);
TAILQ_REMOVE(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
cso = &ccb->csio;
xfrlen = cso->dxfer_len;
if (xfrlen == 0) {
if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
ISP_PATH_PRT(isp, ISP_LOGERR, ccb->ccb_h.path, "a data transfer length of zero but no status to send is wrong\n");
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
continue;
}
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, cso->tag_id);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (atp == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] cannot find private data adjunct in %s", __func__, cso->tag_id, __func__);
isp_dump_atpd(isp, tptr);
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
continue;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* Is this command a dead duck?
*/
if (atp->dead) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] not sending a CTIO for a dead command", __func__, cso->tag_id);
ccb->ccb_h.status = CAM_REQ_ABORTED;
xpt_done(ccb);
continue;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* Check to make sure we're still in target mode.
*/
fcp = FCPARAM(isp, XS_CHANNEL(ccb));
if ((fcp->role & ISP_ROLE_TARGET) == 0) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] stopping sending a CTIO because we're no longer in target mode", __func__, cso->tag_id);
ccb->ccb_h.status = CAM_PROVIDE_FAIL;
xpt_done(ccb);
continue;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* We're only handling ATPD_CCB_OUTSTANDING outstanding CCB at a time (one of which
* could be split into two CTIOs to split data and status).
*/
if (atp->ctcnt >= ATPD_CCB_OUTSTANDING) {
isp_prt(isp, ISP_LOGTINFO, "[0x%x] handling only %d CCBs at a time (flags for this ccb: 0x%x)", cso->tag_id, ATPD_CCB_OUTSTANDING, ccb->ccb_h.flags);
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
/*
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
* Does the initiator expect FC-Tape style responses?
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
*/
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if ((atp->word3 & PRLI_WD3_RETRY) && fcp->fctape_enabled) {
fctape = 1;
} else {
fctape = 0;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
/*
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
* If we already did the data xfer portion of a CTIO that sends data
* and status, don't do it again and do the status portion now.
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
*/
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (atp->sendst) {
isp_prt(isp, ISP_LOGTINFO, "[0x%x] now sending synthesized status orig_dl=%u xfered=%u bit=%u",
cso->tag_id, atp->orig_datalen, atp->bytes_xfered, atp->bytes_in_transit);
xfrlen = 0; /* we already did the data transfer */
atp->sendst = 0;
}
if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
sendstatus = 1;
} else {
sendstatus = 0;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (ccb->ccb_h.flags & CAM_SEND_SENSE) {
KASSERT((sendstatus != 0), ("how can you have CAM_SEND_SENSE w/o CAM_SEND_STATUS?"));
/*
* Sense length is not the entire sense data structure size. Periph
* drivers don't seem to be setting sense_len to reflect the actual
* size. We'll peek inside to get the right amount.
*/
sense_length = cso->sense_len;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* This 'cannot' happen
*/
if (sense_length > (XCMD_SIZE - MIN_FCP_RESPONSE_SIZE)) {
sense_length = XCMD_SIZE - MIN_FCP_RESPONSE_SIZE;
}
} else {
sense_length = 0;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
memset(local, 0, QENTRY_LEN);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
/*
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
* Check for overflow
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
*/
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
tmp = atp->bytes_xfered + atp->bytes_in_transit + xfrlen;
if (tmp > atp->orig_datalen) {
isp_prt(isp, ISP_LOGERR, "%s: [0x%x] data overflow by %u bytes", __func__, cso->tag_id, tmp - atp->orig_datalen);
ccb->ccb_h.status = CAM_DATA_RUN_ERR;
xpt_done(ccb);
continue;
}
if (IS_24XX(isp)) {
ct7_entry_t *cto = (ct7_entry_t *) local;
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
ATPD_SET_SEQNO(cto, atp);
cto->ct_nphdl = atp->nphdl;
cto->ct_rxid = atp->tag;
cto->ct_iid_lo = atp->portid;
cto->ct_iid_hi = atp->portid >> 16;
cto->ct_oxid = atp->oxid;
cto->ct_vpidx = ISP_GET_VPIDX(isp, XS_CHANNEL(ccb));
cto->ct_timeout = 120;
cto->ct_flags = atp->tattr << CT7_TASK_ATTR_SHIFT;
/*
* Mode 1, status, no data. Only possible when we are sending status, have
Minor correction. MFC after: 1 day
2012-09-17 02:50:16 +00:00
* no data to transfer, and any sense data can fit into a ct7_entry_t.
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
*
Add some edits to the changed comments so that they make more sense. MFC after: 1 day
2012-09-17 02:49:02 +00:00
* Mode 2, status, no data. We have to use this in the case that
* the sense data won't fit into a ct7_entry_t.
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
*
*/
if (sendstatus && xfrlen == 0) {
cto->ct_flags |= CT7_SENDSTATUS | CT7_NO_DATA;
resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
if (sense_length <= MAXRESPLEN_24XX) {
if (resid < 0) {
cto->ct_resid = -resid;
} else if (resid > 0) {
cto->ct_resid = resid;
}
cto->ct_flags |= CT7_FLAG_MODE1;
cto->ct_scsi_status = cso->scsi_status;
if (resid < 0) {
cto->ct_scsi_status |= (FCP_RESID_OVERFLOW << 8);
} else if (resid > 0) {
cto->ct_scsi_status |= (FCP_RESID_UNDERFLOW << 8);
}
if (fctape) {
cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
}
if (sense_length) {
cto->ct_scsi_status |= (FCP_SNSLEN_VALID << 8);
cto->rsp.m1.ct_resplen = cto->ct_senselen = sense_length;
memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
}
} else {
bus_addr_t addr;
char buf[XCMD_SIZE];
fcp_rsp_iu_t *rp;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (atp->ests == NULL) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->ests = isp_get_ecmd(isp);
if (atp->ests == NULL) {
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
memset(buf, 0, sizeof (buf));
rp = (fcp_rsp_iu_t *)buf;
if (fctape) {
cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
rp->fcp_rsp_bits |= FCP_CONF_REQ;
}
cto->ct_flags |= CT7_FLAG_MODE2;
rp->fcp_rsp_scsi_status = cso->scsi_status;
if (resid < 0) {
rp->fcp_rsp_resid = -resid;
rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
} else if (resid > 0) {
rp->fcp_rsp_resid = resid;
rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
}
if (sense_length) {
rp->fcp_rsp_snslen = sense_length;
cto->ct_senselen = sense_length;
rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
} else {
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
}
if (isp->isp_dblev & ISP_LOGTDEBUG1) {
isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
}
addr = isp->isp_osinfo.ecmd_dma;
addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
isp_prt(isp, ISP_LOGTDEBUG0, "%s: ests base %p vaddr %p ecmd_dma %jx addr %jx len %u", __func__, isp->isp_osinfo.ecmd_base, atp->ests,
(uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
cto->rsp.m2.ct_fcp_rsp_iudata.ds_base = DMA_LO32(addr);
cto->rsp.m2.ct_fcp_rsp_iudata.ds_basehi = DMA_HI32(addr);
cto->rsp.m2.ct_fcp_rsp_iudata.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
if (sense_length) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d slen %u sense: %x %x/%x/%x", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid, sense_length,
cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, cto->ct_resid);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->state = ATPD_STATE_LAST_CTIO;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
* Mode 0 data transfers, *possibly* with status.
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*/
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (xfrlen != 0) {
cto->ct_flags |= CT7_FLAG_MODE0;
if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
cto->ct_flags |= CT7_DATA_IN;
} else {
cto->ct_flags |= CT7_DATA_OUT;
}
cto->rsp.m0.reloff = atp->bytes_xfered + atp->bytes_in_transit;
cto->rsp.m0.ct_xfrlen = xfrlen;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
#ifdef DEBUG
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame && xfrlen > ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame) {
isp_prt(isp, ISP_LOGWARN, "%s: truncating data frame with xfrlen %d to %d", __func__, xfrlen, xfrlen - (xfrlen >> 2));
ISP_FC_PC(isp, XS_CHANNEL(ccb))->inject_lost_data_frame = 0;
cto->rsp.m0.ct_xfrlen -= xfrlen >> 2;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
#endif
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (sendstatus) {
resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /* && fctape == 0 */) {
cto->ct_flags |= CT7_SENDSTATUS;
atp->state = ATPD_STATE_LAST_CTIO;
if (fctape) {
cto->ct_flags |= CT7_CONFIRM|CT7_EXPLCT_CONF;
}
} else {
atp->sendst = 1; /* send status later */
cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
atp->state = ATPD_STATE_CTIO;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
atp->state = ATPD_STATE_CTIO;
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO7[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x xfrlen=%u off=%u", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cto->ct_scsi_status, cto->ct_flags, xfrlen, atp->bytes_xfered);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
} else if (IS_FC(isp)) {
ct2_entry_t *cto = (ct2_entry_t *) local;
a whale of a lot of target mode cleanup
2000-01-15 01:50:48 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (isp->isp_osinfo.sixtyfourbit)
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO3;
else
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO2;
cto->ct_header.rqs_entry_count = 1;
cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
ATPD_SET_SEQNO(cto, atp);
if (ISP_CAP_2KLOGIN(isp) == 0) {
((ct2e_entry_t *)cto)->ct_iid = cso->init_id;
} else {
cto->ct_iid = cso->init_id;
if (ISP_CAP_SCCFW(isp) == 0) {
cto->ct_lun = ccb->ccb_h.target_lun;
}
Remove bzero/bcopy vestiges. Be cognizant as to whether we're running 2KLogin f/w in target mode and do the appropriate loopid load based upon that.
2006-05-22 06:49:49 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
cto->ct_timeout = 10;
cto->ct_rxid = cso->tag_id;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* Mode 1, status, no data. Only possible when we are sending status, have
* no data to transfer, and the sense length can fit in the ct7_entry.
*
Correct double "the the" Approved by: cperciva MFC after: 3 days
2012-09-14 21:28:56 +00:00
* Mode 2, status, no data. We have to use this in the case the response
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
* length won't fit into a ct2_entry_t.
*
* We'll fill out this structure with information as if this were a
* Mode 1. The hardware layer will create the Mode 2 FCP RSP IU as
* needed based upon this.
*/
if (sendstatus && xfrlen == 0) {
cto->ct_flags |= CT2_SENDSTATUS | CT2_NO_DATA;
resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
if (sense_length <= MAXRESPLEN) {
if (resid < 0) {
cto->ct_resid = -resid;
} else if (resid > 0) {
cto->ct_resid = resid;
}
cto->ct_flags |= CT2_FLAG_MODE1;
cto->rsp.m1.ct_scsi_status = cso->scsi_status;
if (resid < 0) {
cto->rsp.m1.ct_scsi_status |= CT2_DATA_OVER;
} else if (resid > 0) {
cto->rsp.m1.ct_scsi_status |= CT2_DATA_UNDER;
}
if (fctape) {
cto->ct_flags |= CT2_CONFIRM;
}
if (sense_length) {
cto->rsp.m1.ct_scsi_status |= CT2_SNSLEN_VALID;
cto->rsp.m1.ct_resplen = cto->rsp.m1.ct_senselen = sense_length;
memcpy(cto->rsp.m1.ct_resp, &cso->sense_data, sense_length);
}
} else {
bus_addr_t addr;
char buf[XCMD_SIZE];
fcp_rsp_iu_t *rp;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (atp->ests == NULL) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->ests = isp_get_ecmd(isp);
if (atp->ests == NULL) {
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
}
}
memset(buf, 0, sizeof (buf));
rp = (fcp_rsp_iu_t *)buf;
if (fctape) {
cto->ct_flags |= CT2_CONFIRM;
rp->fcp_rsp_bits |= FCP_CONF_REQ;
}
cto->ct_flags |= CT2_FLAG_MODE2;
rp->fcp_rsp_scsi_status = cso->scsi_status;
if (resid < 0) {
rp->fcp_rsp_resid = -resid;
rp->fcp_rsp_bits |= FCP_RESID_OVERFLOW;
} else if (resid > 0) {
rp->fcp_rsp_resid = resid;
rp->fcp_rsp_bits |= FCP_RESID_UNDERFLOW;
}
if (sense_length) {
rp->fcp_rsp_snslen = sense_length;
rp->fcp_rsp_bits |= FCP_SNSLEN_VALID;
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
memcpy(((fcp_rsp_iu_t *)atp->ests)->fcp_rsp_extra, &cso->sense_data, sense_length);
} else {
isp_put_fcp_rsp_iu(isp, rp, atp->ests);
}
if (isp->isp_dblev & ISP_LOGTDEBUG1) {
isp_print_bytes(isp, "FCP Response Frame After Swizzling", MIN_FCP_RESPONSE_SIZE + sense_length, atp->ests);
}
addr = isp->isp_osinfo.ecmd_dma;
addr += ((((isp_ecmd_t *)atp->ests) - isp->isp_osinfo.ecmd_base) * XCMD_SIZE);
isp_prt(isp, ISP_LOGTDEBUG0, "%s: ests base %p vaddr %p ecmd_dma %jx addr %jx len %u", __func__, isp->isp_osinfo.ecmd_base, atp->ests,
(uintmax_t) isp->isp_osinfo.ecmd_dma, (uintmax_t)addr, MIN_FCP_RESPONSE_SIZE + sense_length);
cto->rsp.m2.ct_datalen = MIN_FCP_RESPONSE_SIZE + sense_length;
if (isp->isp_osinfo.sixtyfourbit) {
cto->rsp.m2.u.ct_fcp_rsp_iudata_64.ds_base = DMA_LO32(addr);
cto->rsp.m2.u.ct_fcp_rsp_iudata_64.ds_basehi = DMA_HI32(addr);
cto->rsp.m2.u.ct_fcp_rsp_iudata_64.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
} else {
cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_base = DMA_LO32(addr);
cto->rsp.m2.u.ct_fcp_rsp_iudata_32.ds_count = MIN_FCP_RESPONSE_SIZE + sense_length;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
}
if (sense_length) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d sense: %x %x/%x/%x", __func__,
cto->ct_rxid, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid,
cso->sense_data.error_code, cso->sense_data.sense_buf[1], cso->sense_data.sense_buf[11], cso->sense_data.sense_buf[12]);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[0x%x] seq %u nc %d CDB0=%x sstatus=0x%x flags=0x%x resid=%d", __func__, cto->ct_rxid,
ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->state = ATPD_STATE_LAST_CTIO;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (xfrlen != 0) {
cto->ct_flags |= CT2_FLAG_MODE0;
if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
cto->ct_flags |= CT2_DATA_IN;
} else {
cto->ct_flags |= CT2_DATA_OUT;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
cto->ct_reloff = atp->bytes_xfered + atp->bytes_in_transit;
cto->rsp.m0.ct_xfrlen = xfrlen;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (sendstatus) {
resid = atp->orig_datalen - atp->bytes_xfered - xfrlen;
if (cso->scsi_status == SCSI_STATUS_OK && resid == 0 /*&& fctape == 0*/) {
cto->ct_flags |= CT2_SENDSTATUS;
atp->state = ATPD_STATE_LAST_CTIO;
if (fctape) {
cto->ct_flags |= CT2_CONFIRM;
}
} else {
atp->sendst = 1; /* send status later */
cto->ct_header.rqs_seqno &= ~ATPD_SEQ_NOTIFY_CAM;
atp->state = ATPD_STATE_CTIO;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
atp->state = ATPD_STATE_CTIO;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
}
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO2[%x] seq %u nc %d CDB0=%x scsi status %x flags %x resid %d xfrlen %u offset %u", __func__, cto->ct_rxid,
ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), atp->cdb0, cso->scsi_status, cto->ct_flags, cto->ct_resid, cso->dxfer_len, atp->bytes_xfered);
} else {
ct_entry_t *cto = (ct_entry_t *) local;
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO;
cto->ct_header.rqs_entry_count = 1;
cto->ct_header.rqs_seqno |= ATPD_SEQ_NOTIFY_CAM;
ATPD_SET_SEQNO(cto, atp);
cto->ct_iid = cso->init_id;
cto->ct_iid |= XS_CHANNEL(ccb) << 7;
cto->ct_tgt = ccb->ccb_h.target_id;
cto->ct_lun = ccb->ccb_h.target_lun;
cto->ct_fwhandle = cso->tag_id;
if (atp->rxid) {
cto->ct_tag_val = atp->rxid;
cto->ct_flags |= CT_TQAE;
}
if (ccb->ccb_h.flags & CAM_DIS_DISCONNECT) {
cto->ct_flags |= CT_NODISC;
}
if (cso->dxfer_len == 0) {
cto->ct_flags |= CT_NO_DATA;
} else if ((cso->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
cto->ct_flags |= CT_DATA_IN;
Begin to implement target mode that for Fibre Channel has a private per-command component that we *don't* try and pass thru CAM. CAM just is too risky and too much of a pain- structures get copied, but not all info of interest can be considered safely transported thru all consumers (including user space) from the incoming ATIO to the outgoing CTIO- it's just much safer to have a buddy structure, identified by the command's tag which *does* make it thru safely. Pay attention to link speed and report 200MB/s xfer speed for a 23XX card in 2GPs mode. MFC after: 1 week
2001-10-01 03:48:42 +00:00
} else {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
cto->ct_flags |= CT_DATA_OUT;
}
if (ccb->ccb_h.flags & CAM_SEND_STATUS) {
cto->ct_flags |= CT_SENDSTATUS|CT_CCINCR;
cto->ct_scsi_status = cso->scsi_status;
cto->ct_resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit - xfrlen;
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO[%x] seq %u nc %d scsi status %x resid %d tag_id %x", __func__,
cto->ct_fwhandle, ATPD_GET_SEQNO(cto), ATPD_GET_NCAM(cto), cso->scsi_status, cso->resid, cso->tag_id);
Clean up some debug printing. Find the correct lun when SCCLUN is defined. If we complete with a check condition but no sense data, say we had an AUTOSENSE failure.
2000-01-04 03:45:49 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->ccb_h.flags &= ~CAM_SEND_SENSE;
cto->ct_timeout = 10;
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
}
a whale of a lot of target mode cleanup
2000-01-15 01:50:48 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (isp_get_pcmd(isp, ccb)) {
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "out of PCMDs\n");
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (isp_allocate_xs_tgt(isp, ccb, &handle)) {
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "No XFLIST pointers for %s\n", __func__);
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
isp_free_pcmd(isp, ccb);
break;
Clean up some debug printing. Find the correct lun when SCCLUN is defined. If we complete with a check condition but no sense data, say we had an AUTOSENSE failure.
2000-01-04 03:45:49 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->bytes_in_transit += xfrlen;
PISP_PCMD(ccb)->datalen = xfrlen;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* Call the dma setup routines for this entry (and any subsequent
* CTIOs) if there's data to move, and then tell the f/w it's got
* new things to play with. As with isp_start's usage of DMA setup,
* any swizzling is done in the machine dependent layer. Because
* of this, we put the request onto the queue area first in native
* format.
*/
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if (IS_24XX(isp)) {
ct7_entry_t *cto = (ct7_entry_t *) local;
cto->ct_syshandle = handle;
} else if (IS_FC(isp)) {
ct2_entry_t *cto = (ct2_entry_t *) local;
cto->ct_syshandle = handle;
} else {
ct_entry_t *cto = (ct_entry_t *) local;
cto->ct_syshandle = handle;
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
dmaresult = ISP_DMASETUP(isp, cso, (ispreq_t *) local);
if (dmaresult != CMD_QUEUED) {
isp_destroy_tgt_handle(isp, handle);
isp_free_pcmd(isp, ccb);
if (dmaresult == CMD_EAGAIN) {
TAILQ_INSERT_HEAD(&tptr->waitq, &ccb->ccb_h, periph_links.tqe);
break;
}
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
xpt_done(ccb);
continue;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp->isp_nactive++;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->ccb_h.status = CAM_REQ_INPROG | CAM_SIM_QUEUED;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (xfrlen) {
ccb->ccb_h.spriv_field0 = atp->bytes_xfered;
} else {
ccb->ccb_h.spriv_field0 = ~0;
}
atp->ctcnt++;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->seqno++;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
rls_lun_statep(isp, tptr);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
static void
isp_refire_putback_atio(void *arg)
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
union ccb *ccb = arg;
ispsoftc_t *isp = XS_ISP(ccb);
ISP_LOCK(isp);
isp_target_putback_atio(ccb);
ISP_UNLOCK(isp);
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
static void
isp_refire_notify_ack(void *arg)
{
isp_tna_t *tp = arg;
ispsoftc_t *isp = tp->isp;
ISP_LOCK(isp);
if (isp_notify_ack(isp, tp->not)) {
(void) timeout(isp_refire_notify_ack, tp, 5);
} else {
free(tp, M_DEVBUF);
}
ISP_UNLOCK(isp);
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
static void
isp_target_putback_atio(union ccb *ccb)
{
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
ispsoftc_t *isp;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
struct ccb_scsiio *cso;
void *qe;
isp = XS_ISP(ccb);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
qe = isp_getrqentry(isp);
if (qe == NULL) {
Harvest one no longer used constant string. Remove another and place it into play in the normally ifdef protected zone it would be used int. Noticed by: dim
2013-12-25 04:51:56 +00:00
xpt_print(ccb->ccb_h.path,
"%s: Request Queue Overflow\n", __func__);
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
(void) timeout(isp_refire_putback_atio, ccb, 10);
return;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
Remove bzero/bcopy vestiges. Be cognizant as to whether we're running 2KLogin f/w in target mode and do the appropriate loopid load based upon that.
2006-05-22 06:49:49 +00:00
memset(qe, 0, QENTRY_LEN);
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
cso = &ccb->csio;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
if (IS_FC(isp)) {
Major restructuring for swizzling to the request queue and unswizzling from the response queue. Instead of the ad hoc ISP_SWIZZLE_REQUEST, we now have a complete set of inline functions in isp_inline.h. Each platform is responsible for providing just one of a set of ISP_IOX_{GET,PUT}{8,16,32} macros. The reason this needs to be done is that we need to have a single set of functions that will work correctly on multiple architectures for both little and big endian machines. It also needs to work correctly in the case that we have the request or response queues in memory that has to be treated specially (e.g., have ddi_dma_sync called on it for Solaris after we update it or before we read from it). It also has to handle the SBus cards (for platforms that have them) which, while on a Big Endian machine, do *not* require *most* of the request/response queue entry fields to be swizzled or unswizzled. One thing that falls out of this is that we no longer build requests in the request queue itself. Instead, we build the request locally (e.g., on the stack) and then as part of the swizzling operation, copy it to the request queue entry we've allocated. I thought long and hard about whether this was too expensive a change to make as it in a lot of cases requires an extra copy. On balance, the flexbility is worth it. With any luck, the entry that we build locally stays in a processor writeback cache (after all, it's only 64 bytes) so that the cost of actually flushing it to the memory area that is the shared queue with the PCI device is not all that expensive. We may examine this again and try to get clever in the future to try and avoid copies. Another change that falls out of this is that MEMORYBARRIER should be taken a lot more seriously. The macro ISP_ADD_REQUEST does a MEMORYBARRIER on the entry being added. But there had been many other places this had been missing. It's now very important that it be done. Additional changes: Fix a longstanding buglet of sorts. When we get an entry via isp_getrqentry, the iptr value that gets returned is the value we intend to eventually plug into the ISP registers as the entry *one past* the last one we've written- *not* the current entry we're updating. All along we've been calling sync functions on the wrong index value. Argh. The 'fix' here is to rename all 'iptr' variables as 'nxti' to remember that this is the 'next' pointer- not the current pointer. Devote a single bit to mboxbsy- and set aside bits for output mbox registers that we need to pick up- we can have at least one command which does not have any defined output registers (MBOX_EXECUTE_FIRMWARE). MFC after: 2 weeks
2001-12-11 00:18:45 +00:00
at2_entry_t local, *at = &local;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_MEMZERO(at, sizeof (at2_entry_t));
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
at->at_header.rqs_entry_type = RQSTYPE_ATIO2;
at->at_header.rqs_entry_count = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_CAP_SCCFW(isp)) {
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
at->at_scclun = (uint16_t) ccb->ccb_h.target_lun;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
} else {
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
at->at_lun = (uint8_t) ccb->ccb_h.target_lun;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
at->at_status = CT_OK;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
at->at_rxid = cso->tag_id;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
at->at_iid = cso->ccb_h.target_id;
Major restructuring for swizzling to the request queue and unswizzling from the response queue. Instead of the ad hoc ISP_SWIZZLE_REQUEST, we now have a complete set of inline functions in isp_inline.h. Each platform is responsible for providing just one of a set of ISP_IOX_{GET,PUT}{8,16,32} macros. The reason this needs to be done is that we need to have a single set of functions that will work correctly on multiple architectures for both little and big endian machines. It also needs to work correctly in the case that we have the request or response queues in memory that has to be treated specially (e.g., have ddi_dma_sync called on it for Solaris after we update it or before we read from it). It also has to handle the SBus cards (for platforms that have them) which, while on a Big Endian machine, do *not* require *most* of the request/response queue entry fields to be swizzled or unswizzled. One thing that falls out of this is that we no longer build requests in the request queue itself. Instead, we build the request locally (e.g., on the stack) and then as part of the swizzling operation, copy it to the request queue entry we've allocated. I thought long and hard about whether this was too expensive a change to make as it in a lot of cases requires an extra copy. On balance, the flexbility is worth it. With any luck, the entry that we build locally stays in a processor writeback cache (after all, it's only 64 bytes) so that the cost of actually flushing it to the memory area that is the shared queue with the PCI device is not all that expensive. We may examine this again and try to get clever in the future to try and avoid copies. Another change that falls out of this is that MEMORYBARRIER should be taken a lot more seriously. The macro ISP_ADD_REQUEST does a MEMORYBARRIER on the entry being added. But there had been many other places this had been missing. It's now very important that it be done. Additional changes: Fix a longstanding buglet of sorts. When we get an entry via isp_getrqentry, the iptr value that gets returned is the value we intend to eventually plug into the ISP registers as the entry *one past* the last one we've written- *not* the current entry we're updating. All along we've been calling sync functions on the wrong index value. Argh. The 'fix' here is to rename all 'iptr' variables as 'nxti' to remember that this is the 'next' pointer- not the current pointer. Devote a single bit to mboxbsy- and set aside bits for output mbox registers that we need to pick up- we can have at least one command which does not have any defined output registers (MBOX_EXECUTE_FIRMWARE). MFC after: 2 weeks
2001-12-11 00:18:45 +00:00
isp_put_atio2(isp, at, qe);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
} else {
Major restructuring for swizzling to the request queue and unswizzling from the response queue. Instead of the ad hoc ISP_SWIZZLE_REQUEST, we now have a complete set of inline functions in isp_inline.h. Each platform is responsible for providing just one of a set of ISP_IOX_{GET,PUT}{8,16,32} macros. The reason this needs to be done is that we need to have a single set of functions that will work correctly on multiple architectures for both little and big endian machines. It also needs to work correctly in the case that we have the request or response queues in memory that has to be treated specially (e.g., have ddi_dma_sync called on it for Solaris after we update it or before we read from it). It also has to handle the SBus cards (for platforms that have them) which, while on a Big Endian machine, do *not* require *most* of the request/response queue entry fields to be swizzled or unswizzled. One thing that falls out of this is that we no longer build requests in the request queue itself. Instead, we build the request locally (e.g., on the stack) and then as part of the swizzling operation, copy it to the request queue entry we've allocated. I thought long and hard about whether this was too expensive a change to make as it in a lot of cases requires an extra copy. On balance, the flexbility is worth it. With any luck, the entry that we build locally stays in a processor writeback cache (after all, it's only 64 bytes) so that the cost of actually flushing it to the memory area that is the shared queue with the PCI device is not all that expensive. We may examine this again and try to get clever in the future to try and avoid copies. Another change that falls out of this is that MEMORYBARRIER should be taken a lot more seriously. The macro ISP_ADD_REQUEST does a MEMORYBARRIER on the entry being added. But there had been many other places this had been missing. It's now very important that it be done. Additional changes: Fix a longstanding buglet of sorts. When we get an entry via isp_getrqentry, the iptr value that gets returned is the value we intend to eventually plug into the ISP registers as the entry *one past* the last one we've written- *not* the current entry we're updating. All along we've been calling sync functions on the wrong index value. Argh. The 'fix' here is to rename all 'iptr' variables as 'nxti' to remember that this is the 'next' pointer- not the current pointer. Devote a single bit to mboxbsy- and set aside bits for output mbox registers that we need to pick up- we can have at least one command which does not have any defined output registers (MBOX_EXECUTE_FIRMWARE). MFC after: 2 weeks
2001-12-11 00:18:45 +00:00
at_entry_t local, *at = &local;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_MEMZERO(at, sizeof (at_entry_t));
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
at->at_header.rqs_entry_type = RQSTYPE_ATIO;
at->at_header.rqs_entry_count = 1;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
at->at_iid = cso->init_id;
at->at_iid |= XS_CHANNEL(ccb) << 7;
at->at_tgt = cso->ccb_h.target_id;
at->at_lun = cso->ccb_h.target_lun;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
at->at_status = CT_OK;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
at->at_tag_val = AT_GET_TAG(cso->tag_id);
at->at_handle = AT_GET_HANDLE(cso->tag_id);
Major restructuring for swizzling to the request queue and unswizzling from the response queue. Instead of the ad hoc ISP_SWIZZLE_REQUEST, we now have a complete set of inline functions in isp_inline.h. Each platform is responsible for providing just one of a set of ISP_IOX_{GET,PUT}{8,16,32} macros. The reason this needs to be done is that we need to have a single set of functions that will work correctly on multiple architectures for both little and big endian machines. It also needs to work correctly in the case that we have the request or response queues in memory that has to be treated specially (e.g., have ddi_dma_sync called on it for Solaris after we update it or before we read from it). It also has to handle the SBus cards (for platforms that have them) which, while on a Big Endian machine, do *not* require *most* of the request/response queue entry fields to be swizzled or unswizzled. One thing that falls out of this is that we no longer build requests in the request queue itself. Instead, we build the request locally (e.g., on the stack) and then as part of the swizzling operation, copy it to the request queue entry we've allocated. I thought long and hard about whether this was too expensive a change to make as it in a lot of cases requires an extra copy. On balance, the flexbility is worth it. With any luck, the entry that we build locally stays in a processor writeback cache (after all, it's only 64 bytes) so that the cost of actually flushing it to the memory area that is the shared queue with the PCI device is not all that expensive. We may examine this again and try to get clever in the future to try and avoid copies. Another change that falls out of this is that MEMORYBARRIER should be taken a lot more seriously. The macro ISP_ADD_REQUEST does a MEMORYBARRIER on the entry being added. But there had been many other places this had been missing. It's now very important that it be done. Additional changes: Fix a longstanding buglet of sorts. When we get an entry via isp_getrqentry, the iptr value that gets returned is the value we intend to eventually plug into the ISP registers as the entry *one past* the last one we've written- *not* the current entry we're updating. All along we've been calling sync functions on the wrong index value. Argh. The 'fix' here is to rename all 'iptr' variables as 'nxti' to remember that this is the 'next' pointer- not the current pointer. Devote a single bit to mboxbsy- and set aside bits for output mbox registers that we need to pick up- we can have at least one command which does not have any defined output registers (MBOX_EXECUTE_FIRMWARE). MFC after: 2 weeks
2001-12-11 00:18:45 +00:00
isp_put_atio(isp, at, qe);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_TDQE(isp, "isp_target_putback_atio", isp->isp_reqidx, qe);
ISP_SYNC_REQUEST(isp);
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
isp_complete_ctio(ccb);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
static void
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
isp_complete_ctio(union ccb *ccb)
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
{
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
* Handle ATIO stuff that the generic code can't.
* This means handling CDBs.
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
isp_handle_platform_atio(ispsoftc_t *isp, at_entry_t *aep)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
tstate_t *tptr;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int status, bus;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
struct ccb_accept_tio *atiop;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atio_private_data_t *atp;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
* The firmware status (except for the QLTM_SVALID bit)
* indicates why this ATIO was sent to us.
*
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* If QLTM_SVALID is set, the firmware has recommended Sense Data.
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
*
* If the DISCONNECTS DISABLED bit is set in the flags field,
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
* we're still connected on the SCSI bus.
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
*/
status = aep->at_status;
if ((status & ~QLTM_SVALID) == AT_PHASE_ERROR) {
/*
* Bus Phase Sequence error. We should have sense data
* suggested by the f/w. I'm not sure quite yet what
* to do about this for CAM.
*/
Finally eliminate as many of the printf calls as possible (still leaving ones where we have a CAM path) and replacing them with calls to isp_prt., Eliminate isp_unit references- we no longer have an isp_unit- we now have an isp_dev that device_get_unit can work with.
2001-03-01 02:14:54 +00:00
isp_prt(isp, ISP_LOGWARN, "PHASE ERROR");
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
isp_endcmd(isp, aep, SCSI_STATUS_BUSY, 0);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
if ((status & ~QLTM_SVALID) != AT_CDB) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGWARN, "bad atio (0x%x) leaked to platform", status);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
isp_endcmd(isp, aep, SCSI_STATUS_BUSY, 0);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
bus = GET_BUS_VAL(aep->at_iid);
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
tptr = get_lun_statep(isp, bus, aep->at_lun);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
if (tptr == NULL) {
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
tptr = get_lun_statep(isp, bus, CAM_LUN_WILDCARD);
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
if (tptr == NULL) {
Redo some code based upon issues found by Coverity.
2006-04-21 18:46:35 +00:00
/*
* Because we can't autofeed sense data back with
* a command for parallel SCSI, we can't give back
* a CHECK CONDITION. We'll give back a BUSY status
* instead. This works out okay because the only
* time we should, in fact, get this, is in the
* case that somebody configured us without the
* blackhole driver, so they get what they deserve.
*/
isp_endcmd(isp, aep, SCSI_STATUS_BUSY, 0);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_get_atpd(isp, tptr, aep->at_handle);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atiop == NULL || atp == NULL) {
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
* Because we can't autofeed sense data back with
* a command for parallel SCSI, we can't give back
* a CHECK CONDITION. We'll give back a QUEUE FULL status
* instead. This works out okay because the only time we
* should, in fact, get this, is in the case that we've
* run out of ATIOS.
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_print(tptr->owner, "no %s for lun %d from initiator %d\n", (atp == NULL && atiop == NULL)? "ATIOs *or* ATPS" :
((atp == NULL)? "ATPs" : "ATIOs"), aep->at_lun, aep->at_iid);
isp_endcmd(isp, aep, SCSI_STATUS_BUSY, 0);
if (atp) {
isp_put_atpd(isp, tptr, atp);
}
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
rls_lun_statep(isp, tptr);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
atp->rxid = aep->at_tag_val;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atp->state = ATPD_STATE_ATIO;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
tptr->atio_count--;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO count now %d\n", tptr->atio_count);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->ccb_h.target_id = aep->at_tgt;
atiop->ccb_h.target_lun = aep->at_lun;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
if (aep->at_flags & AT_NODISC) {
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_DIS_DISCONNECT;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
} else {
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags &= ~CAM_DIS_DISCONNECT;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
if (status & QLTM_SVALID) {
Sync FreeBSD ISP with mercurial tree. Minor changes having to do with a macro for minima.
2011-02-28 15:58:30 +00:00
size_t amt = ISP_MIN(QLTM_SENSELEN, sizeof (atiop->sense_data));
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
atiop->sense_len = amt;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_MEMCPY(&atiop->sense_data, aep->at_sense, amt);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
} else {
atiop->sense_len = 0;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
atiop->init_id = GET_IID_VAL(aep->at_iid);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->cdb_len = aep->at_cdblen;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cdb, aep->at_cdblen);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->ccb_h.status = CAM_CDB_RECVD;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
/*
* Construct a tag 'id' based upon tag value (which may be 0..255)
* and the handle (which we have to preserve).
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->tag_id = atp->tag;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
if (aep->at_flags & AT_TQAE) {
atiop->tag_action = aep->at_tag_type;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->ccb_h.status |= CAM_TAG_ACTION_VALID;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atp->orig_datalen = 0;
atp->bytes_xfered = 0;
atp->lun = aep->at_lun;
atp->nphdl = aep->at_iid;
atp->portid = PORT_NONE;
atp->oxid = 0;
atp->cdb0 = atiop->cdb_io.cdb_bytes[0];
atp->tattr = aep->at_tag_type;
atp->state = ATPD_STATE_CAM;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "ATIO[0x%x] CDB=0x%x lun %d", aep->at_tag_val, atp->cdb0, atp->lun);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
rls_lun_statep(isp, tptr);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
isp_handle_platform_atio2(ispsoftc_t *isp, at2_entry_t *aep)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Clean up some debug printing. Find the correct lun when SCCLUN is defined. If we complete with a check condition but no sense data, say we had an AUTOSENSE failure.
2000-01-04 03:45:49 +00:00
lun_id_t lun;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fcportdb_t *lp;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
tstate_t *tptr;
struct ccb_accept_tio *atiop;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
uint16_t nphdl;
Various minor and not so minor fixes suggested by Coverity. In at least one case, it's amazing that target mode worked at all. Found by: Coverity. MFC after: 2 weeks
2010-06-02 23:31:27 +00:00
atio_private_data_t *atp;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
inot_private_data_t *ntp;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
* The firmware status (except for the QLTM_SVALID bit)
* indicates why this ATIO was sent to us.
*
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* If QLTM_SVALID is set, the firmware has recommended Sense Data.
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
*/
if ((aep->at_status & ~QLTM_SVALID) != AT_CDB) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGWARN, "bogus atio (0x%x) leaked to platform", aep->at_status);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
isp_endcmd(isp, aep, SCSI_STATUS_BUSY, 0);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_CAP_SCCFW(isp)) {
Remove all ISP2100_SCCLUN define protected code and replace it with runtime checks.
2000-06-18 04:50:26 +00:00
lun = aep->at_scclun;
} else {
lun = aep->at_lun;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_CAP_2KLOGIN(isp)) {
nphdl = ((at2e_entry_t *)aep)->at_iid;
} else {
nphdl = aep->at_iid;
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
tptr = get_lun_statep(isp, 0, lun);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
if (tptr == NULL) {
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
if (tptr == NULL) {
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGWARN, "%s: [0x%x] no state pointer for lun %jx or wildcard", __func__, aep->at_rxid, (uintmax_t)lun);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (lun == 0) {
isp_endcmd(isp, aep, SCSI_STATUS_BUSY, 0);
} else {
isp_endcmd(isp, aep, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
}
}
/*
* Start any commands pending resources first.
*/
if (tptr->restart_queue) {
inot_private_data_t *restart_queue = tptr->restart_queue;
tptr->restart_queue = NULL;
while (restart_queue) {
ntp = restart_queue;
restart_queue = ntp->rd.nt.nt_hba;
isp_prt(isp, ISP_LOGTDEBUG0, "%s: restarting resrc deprived %x", __func__, ((at2_entry_t *)ntp->rd.data)->at_rxid);
isp_handle_platform_atio2(isp, (at2_entry_t *) ntp->rd.data);
isp_put_ntpd(isp, tptr, ntp);
/*
* If a recursion caused the restart queue to start to fill again,
* stop and splice the new list on top of the old list and restore
* it and go to noresrc.
*/
if (tptr->restart_queue) {
ntp = tptr->restart_queue;
tptr->restart_queue = restart_queue;
while (restart_queue->rd.nt.nt_hba) {
restart_queue = restart_queue->rd.nt.nt_hba;
}
restart_queue->rd.nt.nt_hba = ntp;
goto noresrc;
}
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atiop == NULL) {
goto noresrc;
}
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_get_atpd(isp, tptr, aep->at_rxid);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atp == NULL) {
goto noresrc;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
atp->state = ATPD_STATE_ATIO;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
tptr->atio_count--;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGTDEBUG2, "Take FREE ATIO count now %d", tptr->atio_count);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->ccb_h.target_id = FCPARAM(isp, 0)->isp_loopid;
atiop->ccb_h.target_lun = lun;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
Fix at2_entry_t to reflect what the firmware actually writes (instead of just deriving from SCSI at_entry_t). In this case, there is no 'suggested sense' for FC cards.
2001-02-27 00:14:39 +00:00
/*
* We don't get 'suggested' sense data as we do with SCSI cards.
*/
atiop->sense_len = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_CAP_2KLOGIN(isp)) {
/*
* NB: We could not possibly have 2K logins if we
* NB: also did not have SCC FW.
*/
atiop->init_id = ((at2e_entry_t *)aep)->at_iid;
} else {
atiop->init_id = aep->at_iid;
}
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* If we're not in the port database, add ourselves.
*/
if (!IS_2100(isp) && isp_find_pdb_by_loopid(isp, 0, atiop->init_id, &lp) == 0) {
uint64_t iid =
(((uint64_t) aep->at_wwpn[0]) << 48) |
(((uint64_t) aep->at_wwpn[1]) << 32) |
(((uint64_t) aep->at_wwpn[2]) << 16) |
(((uint64_t) aep->at_wwpn[3]) << 0);
/*
* However, make sure we delete ourselves if otherwise
* we were there but at a different loop id.
*/
if (isp_find_pdb_by_wwn(isp, 0, iid, &lp)) {
isp_del_wwn_entry(isp, 0, iid, lp->handle, lp->portid);
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_add_wwn_entry(isp, 0, iid, atiop->init_id, PORT_ANY, 0);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->cdb_len = ATIO2_CDBLEN;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cdb, ATIO2_CDBLEN);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->ccb_h.status = CAM_CDB_RECVD;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->tag_id = atp->tag;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
switch (aep->at_taskflags & ATIO2_TC_ATTR_MASK) {
case ATIO2_TC_ATTR_SIMPLEQ:
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->tag_action = MSG_SIMPLE_Q_TAG;
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case ATIO2_TC_ATTR_HEADOFQ:
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->tag_action = MSG_HEAD_OF_Q_TAG;
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case ATIO2_TC_ATTR_ORDERED:
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
atiop->tag_action = MSG_ORDERED_Q_TAG;
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case ATIO2_TC_ATTR_ACAQ: /* ?? */
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
case ATIO2_TC_ATTR_UNTAGGED:
default:
atiop->tag_action = 0;
break;
}
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
Begin to implement target mode that for Fibre Channel has a private per-command component that we *don't* try and pass thru CAM. CAM just is too risky and too much of a pain- structures get copied, but not all info of interest can be considered safely transported thru all consumers (including user space) from the incoming ATIO to the outgoing CTIO- it's just much safer to have a buddy structure, identified by the command's tag which *does* make it thru safely. Pay attention to link speed and report 200MB/s xfer speed for a 23XX card in 2GPs mode. MFC after: 1 week
2001-10-01 03:48:42 +00:00
atp->orig_datalen = aep->at_datalen;
atp->bytes_xfered = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atp->lun = lun;
atp->nphdl = atiop->init_id;
atp->sid = PORT_ANY;
atp->oxid = aep->at_oxid;
atp->cdb0 = aep->at_cdb[0];
atp->tattr = aep->at_taskflags & ATIO2_TC_ATTR_MASK;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
atp->state = ATPD_STATE_CAM;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_done((union ccb *)atiop);
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "ATIO2[0x%x] CDB=0x%x lun %jx datalen %u", aep->at_rxid, atp->cdb0, (uintmax_t)lun, atp->orig_datalen);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
rls_lun_statep(isp, tptr);
return;
noresrc:
ntp = isp_get_ntpd(isp, tptr);
if (ntp == NULL) {
rls_lun_statep(isp, tptr);
isp_endcmd(isp, aep, nphdl, 0, SCSI_STATUS_BUSY, 0);
return;
}
memcpy(ntp->rd.data, aep, QENTRY_LEN);
ntp->rd.nt.nt_hba = tptr->restart_queue;
tptr->restart_queue = ntp;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
rls_lun_statep(isp, tptr);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
isp_handle_platform_atio7(ispsoftc_t *isp, at7_entry_t *aep)
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int cdbxlen;
uint16_t lun, chan, nphdl = NIL_HANDLE;
uint32_t did, sid;
uint64_t wwn = INI_NONE;
fcportdb_t *lp;
tstate_t *tptr;
struct ccb_accept_tio *atiop;
atio_private_data_t *atp = NULL;
Clean up multi-id mode so it's driven by the f/w loaded, not by some hint setting. Do more preparations for FC-Tape. Clean up resource counting for 24XX or later chipsets so we find out after EXEC_FIRMWARE what is actually supported. Set target mode exchange count based upon whether or not we are supporting simultaneous target/initiator mode. Clean up some old (pre-24XX) xfwoption and zfwoption issues. Sponsored by: Spectralogic MFC after: 3 days
2012-06-24 17:30:54 +00:00
atio_private_data_t *oatp;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
inot_private_data_t *ntp;
did = (aep->at_hdr.d_id[0] << 16) | (aep->at_hdr.d_id[1] << 8) | aep->at_hdr.d_id[2];
sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
lun = (aep->at_cmnd.fcp_cmnd_lun[0] << 8) | aep->at_cmnd.fcp_cmnd_lun[1];
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Find the N-port handle, and Virtual Port Index for this command.
*
* If we can't, we're somewhat in trouble because we can't actually respond w/o that information.
* We also, as a matter of course, need to know the WWN of the initiator too.
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_CAP_MULTI_ID(isp)) {
/*
* Find the right channel based upon D_ID
*/
isp_find_chan_by_did(isp, did, &chan);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (chan == ISP_NOCHAN) {
NANOTIME_T now;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* If we don't recognizer our own D_DID, terminate the exchange, unless we're within 2 seconds of startup
* It's a bit tricky here as we need to stash this command *somewhere*.
*/
GET_NANOTIME(&now);
if (NANOTIME_SUB(&isp->isp_init_time, &now) > 2000000000ULL) {
isp_prt(isp, ISP_LOGWARN, "%s: [RX_ID 0x%x] D_ID %x not found on any channel- dropping", __func__, aep->at_rxid, did);
isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN, ECMD_TERMINATE, 0);
return;
}
tptr = get_lun_statep(isp, 0, 0);
if (tptr == NULL) {
tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
if (tptr == NULL) {
isp_prt(isp, ISP_LOGWARN, "%s: [RX_ID 0x%x] D_ID %x not found on any channel and no tptr- dropping", __func__, aep->at_rxid, did);
isp_endcmd(isp, aep, NIL_HANDLE, ISP_NOCHAN, ECMD_TERMINATE, 0);
return;
}
}
isp_prt(isp, ISP_LOGWARN, "%s: [RX_ID 0x%x] D_ID %x not found on any channel- deferring", __func__, aep->at_rxid, did);
goto noresrc;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: [RX_ID 0x%x] D_ID 0x%06x found on Chan %d for S_ID 0x%06x", __func__, aep->at_rxid, did, chan, sid);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
chan = 0;
}
/*
* Find the PDB entry for this initiator
*/
if (isp_find_pdb_by_sid(isp, chan, sid, &lp) == 0) {
/*
* If we're not in the port database terminate the exchange.
*/
isp_prt(isp, ISP_LOGTINFO, "%s: [RX_ID 0x%x] D_ID 0x%06x found on Chan %d for S_ID 0x%06x wasn't in PDB already",
__func__, aep->at_rxid, did, chan, sid);
isp_endcmd(isp, aep, NIL_HANDLE, chan, ECMD_TERMINATE, 0);
return;
}
nphdl = lp->handle;
wwn = lp->port_wwn;
/*
* Get the tstate pointer
*/
tptr = get_lun_statep(isp, chan, lun);
if (tptr == NULL) {
tptr = get_lun_statep(isp, chan, CAM_LUN_WILDCARD);
if (tptr == NULL) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGWARN, "%s: [0x%x] no state pointer for lun %d or wildcard", __func__, aep->at_rxid, lun);
if (lun == 0) {
isp_endcmd(isp, aep, nphdl, SCSI_STATUS_BUSY, 0);
} else {
isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_CHECK_COND | ECMD_SVALID | (0x5 << 12) | (0x25 << 16), 0);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
}
}
/*
* Start any commands pending resources first.
*/
if (tptr->restart_queue) {
inot_private_data_t *restart_queue = tptr->restart_queue;
tptr->restart_queue = NULL;
while (restart_queue) {
ntp = restart_queue;
restart_queue = ntp->rd.nt.nt_hba;
isp_prt(isp, ISP_LOGTDEBUG0, "%s: restarting resrc deprived %x", __func__, ((at7_entry_t *)ntp->rd.data)->at_rxid);
isp_handle_platform_atio7(isp, (at7_entry_t *) ntp->rd.data);
isp_put_ntpd(isp, tptr, ntp);
/*
* If a recursion caused the restart queue to start to fill again,
* stop and splice the new list on top of the old list and restore
* it and go to noresrc.
*/
if (tptr->restart_queue) {
Clean up multi-id mode so it's driven by the f/w loaded, not by some hint setting. Do more preparations for FC-Tape. Clean up resource counting for 24XX or later chipsets so we find out after EXEC_FIRMWARE what is actually supported. Set target mode exchange count based upon whether or not we are supporting simultaneous target/initiator mode. Clean up some old (pre-24XX) xfwoption and zfwoption issues. Sponsored by: Spectralogic MFC after: 3 days
2012-06-24 17:30:54 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: restart queue refilling", __func__);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (restart_queue) {
ntp = tptr->restart_queue;
tptr->restart_queue = restart_queue;
while (restart_queue->rd.nt.nt_hba) {
restart_queue = restart_queue->rd.nt.nt_hba;
}
restart_queue->rd.nt.nt_hba = ntp;
}
goto noresrc;
}
}
}
/*
* If the f/w is out of resources, just send a BUSY status back.
*/
if (aep->at_rxid == AT7_NORESRC_RXID) {
rls_lun_statep(isp, tptr);
isp_endcmd(isp, aep, nphdl, chan, SCSI_BUSY, 0);
return;
}
/*
* If we're out of resources, just send a BUSY status back.
*/
atiop = (struct ccb_accept_tio *) SLIST_FIRST(&tptr->atios);
if (atiop == NULL) {
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atios", aep->at_rxid);
goto noresrc;
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
oatp = isp_find_atpd(isp, tptr, aep->at_rxid);
Clean up multi-id mode so it's driven by the f/w loaded, not by some hint setting. Do more preparations for FC-Tape. Clean up resource counting for 24XX or later chipsets so we find out after EXEC_FIRMWARE what is actually supported. Set target mode exchange count based upon whether or not we are supporting simultaneous target/initiator mode. Clean up some old (pre-24XX) xfwoption and zfwoption issues. Sponsored by: Spectralogic MFC after: 3 days
2012-06-24 17:30:54 +00:00
if (oatp) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] tag wraparound in isp_handle_platforms_atio7 (N-Port Handle 0x%04x S_ID 0x%04x OX_ID 0x%04x) oatp state %d",
Clean up multi-id mode so it's driven by the f/w loaded, not by some hint setting. Do more preparations for FC-Tape. Clean up resource counting for 24XX or later chipsets so we find out after EXEC_FIRMWARE what is actually supported. Set target mode exchange count based upon whether or not we are supporting simultaneous target/initiator mode. Clean up some old (pre-24XX) xfwoption and zfwoption issues. Sponsored by: Spectralogic MFC after: 3 days
2012-06-24 17:30:54 +00:00
aep->at_rxid, nphdl, sid, aep->at_hdr.ox_id, oatp->state);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* It's not a "no resource" condition- but we can treat it like one
*/
goto noresrc;
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_get_atpd(isp, tptr, aep->at_rxid);
if (atp == NULL) {
isp_prt(isp, ISP_LOGTDEBUG0, "[0x%x] out of atps", aep->at_rxid);
goto noresrc;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
atp->word3 = lp->prli_word3;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atp->state = ATPD_STATE_ATIO;
SLIST_REMOVE_HEAD(&tptr->atios, sim_links.sle);
tptr->atio_count--;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, atiop->ccb_h.path, "Take FREE ATIO count now %d\n", tptr->atio_count);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->init_id = nphdl;
atiop->ccb_h.target_id = FCPARAM(isp, chan)->isp_loopid;
atiop->ccb_h.target_lun = lun;
atiop->sense_len = 0;
cdbxlen = aep->at_cmnd.fcp_cmnd_alen_datadir >> FCP_CMND_ADDTL_CDBLEN_SHIFT;
if (cdbxlen) {
isp_prt(isp, ISP_LOGWARN, "additional CDBLEN ignored");
}
cdbxlen = sizeof (aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb);
ISP_MEMCPY(atiop->cdb_io.cdb_bytes, aep->at_cmnd.cdb_dl.sf.fcp_cmnd_cdb, cdbxlen);
atiop->cdb_len = cdbxlen;
atiop->ccb_h.status = CAM_CDB_RECVD;
atiop->tag_id = atp->tag;
switch (aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK) {
case FCP_CMND_TASK_ATTR_SIMPLE:
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->tag_action = MSG_SIMPLE_Q_TAG;
break;
case FCP_CMND_TASK_ATTR_HEAD:
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->tag_action = MSG_HEAD_OF_Q_TAG;
break;
case FCP_CMND_TASK_ATTR_ORDERED:
Partial MFproject/camlock r256671: Fix several target mode SIMs to not blindly clear ccb_h.flags field of ATIO CCBs. Not all CCB flags there belong to them.
2013-10-21 06:04:39 +00:00
atiop->ccb_h.flags |= CAM_TAG_ACTION_VALID;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atiop->tag_action = MSG_ORDERED_Q_TAG;
break;
default:
/* FALLTHROUGH */
case FCP_CMND_TASK_ATTR_ACA:
case FCP_CMND_TASK_ATTR_UNTAGGED:
atiop->tag_action = 0;
break;
}
atp->orig_datalen = aep->at_cmnd.cdb_dl.sf.fcp_cmnd_dl;
atp->bytes_xfered = 0;
atp->lun = lun;
atp->nphdl = nphdl;
atp->portid = sid;
atp->oxid = aep->at_hdr.ox_id;
Clean up multi-id mode so it's driven by the f/w loaded, not by some hint setting. Do more preparations for FC-Tape. Clean up resource counting for 24XX or later chipsets so we find out after EXEC_FIRMWARE what is actually supported. Set target mode exchange count based upon whether or not we are supporting simultaneous target/initiator mode. Clean up some old (pre-24XX) xfwoption and zfwoption issues. Sponsored by: Spectralogic MFC after: 3 days
2012-06-24 17:30:54 +00:00
atp->rxid = aep->at_hdr.rx_id;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
atp->cdb0 = atiop->cdb_io.cdb_bytes[0];
atp->tattr = aep->at_cmnd.fcp_cmnd_task_attribute & FCP_CMND_TASK_ATTR_MASK;
atp->state = ATPD_STATE_CAM;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "ATIO7[0x%x] CDB=0x%x lun %d datalen %u", aep->at_rxid, atp->cdb0, lun, atp->orig_datalen);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_done((union ccb *)atiop);
rls_lun_statep(isp, tptr);
return;
noresrc:
if (atp) {
isp_put_atpd(isp, tptr, atp);
}
ntp = isp_get_ntpd(isp, tptr);
if (ntp == NULL) {
rls_lun_statep(isp, tptr);
isp_endcmd(isp, aep, nphdl, chan, SCSI_STATUS_BUSY, 0);
return;
}
memcpy(ntp->rd.data, aep, QENTRY_LEN);
ntp->rd.nt.nt_hba = tptr->restart_queue;
tptr->restart_queue = ntp;
rls_lun_statep(isp, tptr);
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
/*
* Handle starting an SRR (sequence retransmit request)
* We get here when we've gotten the immediate notify
* and the return of all outstanding CTIOs for this
* transaction.
*/
static void
isp_handle_srr_start(ispsoftc_t *isp, tstate_t *tptr, atio_private_data_t *atp)
{
in_fcentry_24xx_t *inot;
uint32_t srr_off, ccb_off, ccb_len, ccb_end;
union ccb *ccb;
inot = (in_fcentry_24xx_t *)atp->srr;
srr_off = inot->in_srr_reloff_lo | (inot->in_srr_reloff_hi << 16);
ccb = atp->srr_ccb;
atp->srr_ccb = NULL;
atp->nsrr++;
if (ccb == NULL) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] null ccb", atp->tag);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
goto fail;
}
ccb_off = ccb->ccb_h.spriv_field0;
ccb_len = ccb->csio.dxfer_len;
ccb_end = (ccb_off == ~0)? ~0 : ccb_off + ccb_len;
switch (inot->in_srr_iu) {
case R_CTL_INFO_SOLICITED_DATA:
/*
* We have to restart a FCP_DATA data out transaction
*/
atp->sendst = 0;
atp->bytes_xfered = srr_off;
if (ccb_len == 0) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x but current CCB doesn't transfer data", atp->tag, srr_off);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
goto mdp;
}
if (srr_off < ccb_off || ccb_off > srr_off + ccb_len) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x not covered by current CCB data range [0x%x..0x%x]", atp->tag, srr_off, ccb_off, ccb_end);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
goto mdp;
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGWARN, "SRR[0x%x] SRR offset 0x%x covered by current CCB data range [0x%x..0x%x]", atp->tag, srr_off, ccb_off, ccb_end);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
break;
case R_CTL_INFO_COMMAND_STATUS:
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTINFO, "SRR[0x%x] Got an FCP RSP SRR- resending status", atp->tag);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
atp->sendst = 1;
/*
* We have to restart a FCP_RSP IU transaction
*/
break;
case R_CTL_INFO_DATA_DESCRIPTOR:
/*
* We have to restart an FCP DATA in transaction
*/
isp_prt(isp, ISP_LOGWARN, "Got an FCP DATA IN SRR- dropping");
goto fail;
default:
isp_prt(isp, ISP_LOGWARN, "Got an unknown information (%x) SRR- dropping", inot->in_srr_iu);
goto fail;
}
/*
* We can't do anything until this is acked, so we might as well start it now.
* We aren't going to do the usual asynchronous ack issue because we need
* to make sure this gets on the wire first.
*/
if (isp_notify_ack(isp, inot)) {
isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
goto fail;
}
isp_target_start_ctio(isp, ccb, FROM_SRR);
return;
fail:
inot->in_reserved = 1;
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
isp_complete_ctio(ccb);
return;
mdp:
if (isp_notify_ack(isp, inot)) {
isp_prt(isp, ISP_LOGWARN, "could not push positive ack for SRR- you lose");
goto fail;
}
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status = CAM_MESSAGE_RECV;
/*
* This is not a strict interpretation of MDP, but it's close
*/
ccb->csio.msg_ptr = &ccb->csio.sense_data.sense_buf[SSD_FULL_SIZE - 16];
ccb->csio.msg_len = 7;
ccb->csio.msg_ptr[0] = MSG_EXTENDED;
ccb->csio.msg_ptr[1] = 5;
ccb->csio.msg_ptr[2] = 0; /* modify data pointer */
ccb->csio.msg_ptr[3] = srr_off >> 24;
ccb->csio.msg_ptr[4] = srr_off >> 16;
ccb->csio.msg_ptr[5] = srr_off >> 8;
ccb->csio.msg_ptr[6] = srr_off;
isp_complete_ctio(ccb);
}
static void
isp_handle_srr_notify(ispsoftc_t *isp, void *inot_raw)
{
tstate_t *tptr;
in_fcentry_24xx_t *inot = inot_raw;
atio_private_data_t *atp;
uint32_t tag = inot->in_rxid;
uint32_t bus = inot->in_vpidx;
if (!IS_24XX(isp)) {
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot_raw);
return;
}
tptr = get_lun_statep_from_tag(isp, bus, tag);
if (tptr == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: cannot find tptr for tag %x in SRR Notify", __func__, tag);
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
return;
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, tag);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (atp == NULL) {
rls_lun_statep(isp, tptr);
isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x in SRR Notify", __func__, tag);
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
return;
}
atp->srr_notify_rcvd = 1;
memcpy(atp->srr, inot, sizeof (atp->srr));
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTINFO /* ISP_LOGTDEBUG0 */, "SRR[0x%x] inot->in_rxid flags 0x%x srr_iu=%x reloff 0x%x", inot->in_rxid, inot->in_flags, inot->in_srr_iu,
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
inot->in_srr_reloff_lo | (inot->in_srr_reloff_hi << 16));
if (atp->srr_ccb)
isp_handle_srr_start(isp, tptr, atp);
rls_lun_statep(isp, tptr);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
isp_handle_platform_ctio(ispsoftc_t *isp, void *arg)
{
union ccb *ccb;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
int sentstatus = 0, ok = 0, notify_cam = 0, resid = 0, failure = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tstate_t *tptr = NULL;
atio_private_data_t *atp = NULL;
int bus;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
uint32_t handle, moved_data = 0, data_requested;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
Revamp the pieces of some of the stuff I forgot to do when shifting to 32 bit handles. The RIO (reduced interrupt operation) and fast posting for the parallel SCSI cards were all 16 bit handles. Furthermore, target mode parallel SCSI only can have 16 bit handles. Use part of a supplied patch to switch over to using 32 bit handles. Be a bit more conservative here and only do this for parallel SCSI for the 12160 (Ultra3) cards. There were a lot of marginal Ultra2 cards, and, frankly, few are findable now for testing. Fix the target handle routine to only do 16 bit handles for parallel SCSI cards. This is okay because the upper sixteen bits of the new 32 bit handles is a sequence number to help protect against duplicate completions. This would be very unlikely to happen with parallel SCSI target mode, and wasn't present before, so we're no worse off than we used to be. While we're at it, finally split the async mailbox completion handlers into FC and parallel SCSI functions. This makes it much cleaner and easier to figure out what is or isn't a legal async mailbox completion code for different card classes. PR: kern/144250 Submitted partially by: Charles D MFC after: 1 week
2010-02-27 05:41:23 +00:00
* CTIO handles are 16 bits.
* CTIO2 and CTIO7 are 32 bits.
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*/
if (IS_SCSI(isp)) {
handle = ((ct_entry_t *)arg)->ct_syshandle;
} else {
handle = ((ct2_entry_t *)arg)->ct_syshandle;
}
ccb = isp_find_xs_tgt(isp, handle);
if (ccb == NULL) {
isp_print_bytes(isp, "null ccb in isp_handle_platform_ctio", QENTRY_LEN, arg);
return;
}
isp_destroy_tgt_handle(isp, handle);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
data_requested = PISP_PCMD(ccb)->datalen;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_free_pcmd(isp, ccb);
if (isp->isp_nactive) {
isp->isp_nactive--;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus = XS_CHANNEL(ccb);
tptr = get_lun_statep(isp, bus, XS_LUN(ccb));
if (tptr == NULL) {
tptr = get_lun_statep(isp, bus, CAM_LUN_WILDCARD);
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (tptr == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: cannot find tptr for tag %x after I/O", __func__, ccb->csio.tag_id);
return;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (IS_24XX(isp)) {
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, ((ct7_entry_t *)arg)->ct_rxid);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else if (IS_FC(isp)) {
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, ((ct2_entry_t *)arg)->ct_rxid);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, ((ct_entry_t *)arg)->ct_fwhandle);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
if (atp == NULL) {
rls_lun_statep(isp, tptr);
isp_prt(isp, ISP_LOGERR, "%s: cannot find adjunct for %x after I/O", __func__, ccb->csio.tag_id);
return;
}
KASSERT((atp->ctcnt > 0), ("ctio count not greater than zero"));
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->bytes_in_transit -= data_requested;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
atp->ctcnt -= 1;
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_24XX(isp)) {
ct7_entry_t *ct = arg;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (ct->ct_nphdl == CT7_SRR) {
atp->srr_ccb = ccb;
if (atp->srr_notify_rcvd)
isp_handle_srr_start(isp, tptr, atp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
rls_lun_statep(isp, tptr);
return;
}
if (ct->ct_nphdl == CT_HBA_RESET) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
failure = CAM_UNREC_HBA_ERROR;
} else {
sentstatus = ct->ct_flags & CT7_SENDSTATUS;
ok = (ct->ct_nphdl == CT7_OK);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if ((ct->ct_flags & CT7_DATAMASK) != CT7_NO_DATA) {
resid = ct->ct_resid;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
moved_data = data_requested - resid;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ok? ISP_LOGTDEBUG0 : ISP_LOGWARN, "%s: CTIO7[%x] seq %u nc %d sts 0x%x flg 0x%x sns %d resid %d %s", __func__, ct->ct_rxid, ATPD_GET_SEQNO(ct),
notify_cam, ct->ct_nphdl, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (IS_FC(isp)) {
ct2_entry_t *ct = arg;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (ct->ct_status == CT_SRR) {
atp->srr_ccb = ccb;
if (atp->srr_notify_rcvd)
isp_handle_srr_start(isp, tptr, atp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
rls_lun_statep(isp, tptr);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_target_putback_atio(ccb);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
}
if (ct->ct_status == CT_HBA_RESET) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
failure = CAM_UNREC_HBA_ERROR;
} else {
sentstatus = ct->ct_flags & CT2_SENDSTATUS;
ok = (ct->ct_status & ~QLTM_SVALID) == CT_OK;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if ((ct->ct_flags & CT2_DATAMASK) != CT2_NO_DATA) {
resid = ct->ct_resid;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
moved_data = data_requested - resid;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ok? ISP_LOGTDEBUG0 : ISP_LOGWARN, "%s: CTIO2[%x] seq %u nc %d sts 0x%x flg 0x%x sns %d resid %d %s", __func__, ct->ct_rxid, ATPD_GET_SEQNO(ct),
notify_cam, ct->ct_status, ct->ct_flags, (ccb->ccb_h.status & CAM_SENT_SENSE) != 0, resid, sentstatus? "FIN" : "MID");
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
ct_entry_t *ct = arg;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ct->ct_status == (CT_HBA_RESET & 0xff)) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
failure = CAM_UNREC_HBA_ERROR;
} else {
sentstatus = ct->ct_flags & CT_SENDSTATUS;
ok = (ct->ct_status & ~QLTM_SVALID) == CT_OK;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
notify_cam = (ct->ct_header.rqs_seqno & ATPD_SEQ_NOTIFY_CAM) != 0;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
if ((ct->ct_flags & CT_DATAMASK) != CT_NO_DATA) {
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
resid = ct->ct_resid;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
moved_data = data_requested - resid;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s: CTIO[%x] seq %u nc %d tag %x S_ID 0x%x lun %d sts %x flg %x resid %d %s", __func__, ct->ct_fwhandle, ATPD_GET_SEQNO(ct),
notify_cam, ct->ct_tag_val, ct->ct_iid, ct->ct_lun, ct->ct_status, ct->ct_flags, resid, sentstatus? "FIN" : "MID");
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (ok) {
if (moved_data) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
atp->bytes_xfered += moved_data;
ccb->csio.resid = atp->orig_datalen - atp->bytes_xfered - atp->bytes_in_transit;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
if (sentstatus && (ccb->ccb_h.flags & CAM_SEND_SENSE)) {
ccb->ccb_h.status |= CAM_SENT_SENSE;
}
ccb->ccb_h.status |= CAM_REQ_CMP;
} else {
notify_cam = 1;
if (failure == CAM_UNREC_HBA_ERROR)
ccb->ccb_h.status |= CAM_UNREC_HBA_ERROR;
else
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
}
atp->state = ATPD_STATE_PDON;
rls_lun_statep(isp, tptr);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
/*
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
* We never *not* notify CAM when there has been any error (ok == 0),
* so we never need to do an ATIO putback if we're not notifying CAM.
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
*/
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGTDEBUG0, "%s CTIO[0x%x] done (ok=%d nc=%d nowsendstatus=%d ccb ss=%d)",
(sentstatus)? " FINAL " : "MIDTERM ", atp->tag, ok, notify_cam, atp->sendst, (ccb->ccb_h.flags & CAM_SEND_STATUS) != 0);
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
if (notify_cam == 0) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (atp->sendst) {
isp_target_start_ctio(isp, ccb, FROM_CTIO_DONE);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return;
Add a isp_target_putback_atio- we aren't using CCINCR at this time, so we need a function that tells the Qlogic f/w that a target mode command is done, so increase the resource count for that lun. Add in a timeout function to kick the putback again if we fail to do it the first time (we may not have the request queue space for ATIO push). Split the function isp_handle_platform_ctio into two parts so that the timeout function for the ATIO push or isp_handle_platform_ctio can inform CAM that the requested CTIO(s) are now done. Clean up (cough) residual handling. What we need for Fibre Channel is to preserve the at_datalen field from the original incoming ATIO so we can calculate a 'true' residual. Unfortunately, we're not guaranteed to get that back from CAM. We'll *try* to find it hiding in the periph_priv field (layering violation)- but if an ATIO was passed in from user land- forget it. This means that we'll probably get residuals wrong for Fibre Channel commands we're completing with an error. It's too late to 4.1 release to fix this- too bad. Luckily the only device we'd really care about this occurring on is a tape device and they're still so rare as FC attached devices that this can be considered an untested combination anyway. Remove all CCINCR usage (resource autoreplenish). When we've proved to ourself that things are working properly, we can add it back in. Make sure we propage 'suggested' sense data from the incoming ATIO into the created system ATIO- and set sense_len appropriately. Correctly propagate tag values. Fall back to the model of generating (well, the functions in isp_pci.c do the work) multiple CTIOs based upon what we get from XPT. Instead of being able to pair Qlogic generated ATIOs with CAM ATIOs, and then to pair CAM CTIOs with Qlogic CTIOs, we have to take the CTIO passed to us from XPT, and if it implies that we have to generate extra Qlogic CTIOs, so be it. This means that we have to wait until the last CTIO in a sequence we generated completes before calling xpt_done. Executive summary- target mode actually now pretty much works well enough to tell folks about.
2000-07-18 06:58:28 +00:00
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
/*
* We're telling CAM we're done with this CTIO transaction.
*
* 24XX cards never need an ATIO put back.
*
* Other cards need one put back only on error.
* In the latter case, a timeout will re-fire
* and try again in case we didn't have
* queue resources to do so at first. In any case,
* once the putback is done we do the completion
* call.
*/
if (ok || IS_24XX(isp)) {
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
isp_complete_ctio(ccb);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
isp_target_putback_atio(ccb);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
}
static void
isp_handle_platform_notify_scsi(ispsoftc_t *isp, in_entry_t *inot)
{
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
static void
isp_handle_platform_notify_fc(ispsoftc_t *isp, in_fcentry_t *inp)
{
int needack = 1;
switch (inp->in_status) {
case IN_PORT_LOGOUT:
/*
* XXX: Need to delete this initiator's WWN from the database
* XXX: Need to send this LOGOUT upstream
*/
isp_prt(isp, ISP_LOGWARN, "port logout of S_ID 0x%x", inp->in_iid);
break;
case IN_PORT_CHANGED:
isp_prt(isp, ISP_LOGWARN, "port changed for S_ID 0x%x", inp->in_iid);
break;
case IN_GLOBAL_LOGO:
isp_del_all_wwn_entries(isp, 0);
isp_prt(isp, ISP_LOGINFO, "all ports logged out");
break;
case IN_ABORT_TASK:
{
tstate_t *tptr;
uint16_t lun;
uint32_t loopid;
uint64_t wwn;
atio_private_data_t *atp;
fcportdb_t *lp;
struct ccb_immediate_notify *inot = NULL;
if (ISP_CAP_SCCFW(isp)) {
lun = inp->in_scclun;
} else {
lun = inp->in_lun;
}
if (ISP_CAP_2KLOGIN(isp)) {
Various minor and not so minor fixes suggested by Coverity. In at least one case, it's amazing that target mode worked at all. Found by: Coverity. MFC after: 2 weeks
2010-06-02 23:31:27 +00:00
loopid = ((in_fcentry_e_t *)inp)->in_iid;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
loopid = inp->in_iid;
}
if (isp_find_pdb_by_loopid(isp, 0, loopid, &lp)) {
wwn = lp->port_wwn;
} else {
wwn = INI_ANY;
}
tptr = get_lun_statep(isp, 0, lun);
if (tptr == NULL) {
tptr = get_lun_statep(isp, 0, CAM_LUN_WILDCARD);
if (tptr == NULL) {
isp_prt(isp, ISP_LOGWARN, "ABORT TASK for lun %u- but no tstate", lun);
return;
}
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, inp->in_seqid);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atp) {
inot = (struct ccb_immediate_notify *) SLIST_FIRST(&tptr->inots);
isp_prt(isp, ISP_LOGTDEBUG0, "ABORT TASK RX_ID %x WWN 0x%016llx state %d", inp->in_seqid, (unsigned long long) wwn, atp->state);
if (inot) {
tptr->inot_count--;
SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, inot->ccb_h.path, "%s: Take FREE INOT count now %d\n", __func__, tptr->inot_count);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGWARN, tptr->owner, "out of INOT structures\n");
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
} else {
ISP_PATH_PRT(isp, ISP_LOGWARN, tptr->owner, "abort task RX_ID %x from wwn 0x%016llx, state unknown\n", inp->in_seqid, wwn);
}
if (inot) {
isp_notify_t tmp, *nt = &tmp;
ISP_MEMZERO(nt, sizeof (isp_notify_t));
nt->nt_hba = isp;
nt->nt_tgt = FCPARAM(isp, 0)->isp_wwpn;
nt->nt_wwn = wwn;
nt->nt_nphdl = loopid;
nt->nt_sid = PORT_ANY;
nt->nt_did = PORT_ANY;
nt->nt_lun = lun;
nt->nt_need_ack = 1;
nt->nt_channel = 0;
nt->nt_ncode = NT_ABORT_TASK;
nt->nt_lreserved = inot;
isp_handle_platform_target_tmf(isp, nt);
needack = 0;
}
rls_lun_statep(isp, tptr);
break;
}
default:
break;
}
if (needack) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
}
static void
isp_handle_platform_notify_24xx(ispsoftc_t *isp, in_fcentry_24xx_t *inot)
{
uint16_t nphdl;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
uint16_t prli_options = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
uint32_t portid;
fcportdb_t *lp;
uint8_t *ptr = NULL;
uint64_t wwn;
nphdl = inot->in_nphdl;
if (nphdl != NIL_HANDLE) {
portid = inot->in_portid_hi << 16 | inot->in_portid_lo;
} else {
portid = PORT_ANY;
}
switch (inot->in_status) {
case IN24XX_ELS_RCVD:
{
char buf[16], *msg;
int chan = ISP_GET_VPIDX(isp, inot->in_vpidx);
/*
* Note that we're just getting notification that an ELS was received
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* (possibly with some associated information sent upstream). This is
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* *not* the same as being given the ELS frame to accept or reject.
*/
switch (inot->in_status_subcode) {
case LOGO:
msg = "LOGO";
if (ISP_FW_NEWER_THAN(isp, 4, 0, 25)) {
ptr = (uint8_t *)inot; /* point to unswizzled entry! */
wwn = (((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF]) << 56) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+1]) << 48) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+2]) << 40) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+3]) << 32) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+4]) << 24) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+5]) << 16) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+6]) << 8) |
(((uint64_t) ptr[IN24XX_LOGO_WWPN_OFF+7]));
} else {
wwn = INI_ANY;
}
isp_del_wwn_entry(isp, chan, wwn, nphdl, portid);
break;
case PRLO:
msg = "PRLO";
break;
case PLOGI:
Treat PRLI the same as PLOGI and make a database entry for it (target mode). Obtained from: Ken Merry MFC after: One Month
2010-05-25 16:46:29 +00:00
case PRLI:
/*
* Treat PRLI the same as PLOGI and make a database entry for it.
*/
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (inot->in_status_subcode == PLOGI) {
Treat PRLI the same as PLOGI and make a database entry for it (target mode). Obtained from: Ken Merry MFC after: One Month
2010-05-25 16:46:29 +00:00
msg = "PLOGI";
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
} else {
prli_options = inot->in_prli_options;
Treat PRLI the same as PLOGI and make a database entry for it (target mode). Obtained from: Ken Merry MFC after: One Month
2010-05-25 16:46:29 +00:00
msg = "PRLI";
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ISP_FW_NEWER_THAN(isp, 4, 0, 25)) {
ptr = (uint8_t *)inot; /* point to unswizzled entry! */
wwn = (((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF]) << 56) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+1]) << 48) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+2]) << 40) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+3]) << 32) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+4]) << 24) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+5]) << 16) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+6]) << 8) |
(((uint64_t) ptr[IN24XX_PLOGI_WWPN_OFF+7]));
} else {
wwn = INI_NONE;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_add_wwn_entry(isp, chan, wwn, nphdl, portid, prli_options);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
case PDISC:
msg = "PDISC";
break;
case ADISC:
msg = "ADISC";
break;
default:
ISP_SNPRINTF(buf, sizeof (buf), "ELS 0x%x", inot->in_status_subcode);
msg = buf;
break;
}
if (inot->in_flags & IN24XX_FLAG_PUREX_IOCB) {
isp_prt(isp, ISP_LOGERR, "%s Chan %d ELS N-port handle %x PortID 0x%06x marked as needing a PUREX response", msg, chan, nphdl, portid);
break;
}
isp_prt(isp, ISP_LOGTDEBUG0, "%s Chan %d ELS N-port handle %x PortID 0x%06x RX_ID 0x%x OX_ID 0x%x", msg, chan, nphdl, portid,
inot->in_rxid, inot->in_oxid);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
case IN24XX_PORT_LOGOUT:
ptr = "PORT LOGOUT";
if (isp_find_pdb_by_loopid(isp, ISP_GET_VPIDX(isp, inot->in_vpidx), nphdl, &lp)) {
isp_del_wwn_entry(isp, ISP_GET_VPIDX(isp, inot->in_vpidx), lp->port_wwn, nphdl, lp->portid);
}
/* FALLTHROUGH */
case IN24XX_PORT_CHANGED:
if (ptr == NULL) {
ptr = "PORT CHANGED";
}
/* FALLTHROUGH */
case IN24XX_LIP_RESET:
if (ptr == NULL) {
ptr = "LIP RESET";
}
isp_prt(isp, ISP_LOGINFO, "Chan %d %s (sub-status 0x%x) for N-port handle 0x%x", ISP_GET_VPIDX(isp, inot->in_vpidx), ptr, inot->in_status_subcode, nphdl);
/*
* All subcodes here are irrelevant. What is relevant
* is that we need to terminate all active commands from
* this initiator (known by N-port handle).
*/
/* XXX IMPLEMENT XXX */
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
case IN24XX_SRR_RCVD:
#ifdef ISP_TARGET_MODE
isp_handle_srr_notify(isp, inot);
break;
#else
if (ptr == NULL) {
ptr = "SRR RCVD";
}
/* FALLTHROUGH */
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case IN24XX_LINK_RESET:
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (ptr == NULL) {
ptr = "LINK RESET";
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case IN24XX_LINK_FAILED:
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (ptr == NULL) {
ptr = "LINK FAILED";
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
default:
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGWARN, "Chan %d %s", ISP_GET_VPIDX(isp, inot->in_vpidx), ptr);
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, inot);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
}
static int
isp_handle_platform_target_notify_ack(ispsoftc_t *isp, isp_notify_t *mp)
{
if (isp->isp_state != ISP_RUNSTATE) {
isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) acked- h/w not ready (dropping)", mp->nt_ncode, mp->nt_lreserved != NULL);
return (0);
}
/*
* This case is for a Task Management Function, which shows up as an ATIO7 entry.
*/
if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ATIO) {
ct7_entry_t local, *cto = &local;
at7_entry_t *aep = (at7_entry_t *)mp->nt_lreserved;
fcportdb_t *lp;
uint32_t sid;
uint16_t nphdl;
sid = (aep->at_hdr.s_id[0] << 16) | (aep->at_hdr.s_id[1] << 8) | aep->at_hdr.s_id[2];
if (isp_find_pdb_by_sid(isp, mp->nt_channel, sid, &lp)) {
nphdl = lp->handle;
} else {
nphdl = NIL_HANDLE;
}
ISP_MEMZERO(&local, sizeof (local));
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_nphdl = nphdl;
cto->ct_rxid = aep->at_rxid;
cto->ct_vpidx = mp->nt_channel;
cto->ct_iid_lo = sid;
cto->ct_iid_hi = sid >> 16;
cto->ct_oxid = aep->at_hdr.ox_id;
cto->ct_flags = CT7_SENDSTATUS|CT7_NOACK|CT7_NO_DATA|CT7_FLAG_MODE1;
cto->ct_flags |= (aep->at_ta_len >> 12) << CT7_TASK_ATTR_SHIFT;
return (isp_target_put_entry(isp, &local));
}
/*
* This case is for a responding to an ABTS frame
*/
if (IS_24XX(isp) && mp->nt_lreserved && ((isphdr_t *)mp->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
/*
* Overload nt_need_ack here to mark whether we've terminated the associated command.
*/
if (mp->nt_need_ack) {
uint8_t storage[QENTRY_LEN];
ct7_entry_t *cto = (ct7_entry_t *) storage;
abts_t *abts = (abts_t *)mp->nt_lreserved;
ISP_MEMZERO(cto, sizeof (ct7_entry_t));
isp_prt(isp, ISP_LOGTDEBUG0, "%s: [%x] terminating after ABTS received", __func__, abts->abts_rxid_task);
cto->ct_header.rqs_entry_type = RQSTYPE_CTIO7;
cto->ct_header.rqs_entry_count = 1;
cto->ct_nphdl = mp->nt_nphdl;
cto->ct_rxid = abts->abts_rxid_task;
cto->ct_iid_lo = mp->nt_sid;
cto->ct_iid_hi = mp->nt_sid >> 16;
cto->ct_oxid = abts->abts_ox_id;
cto->ct_vpidx = mp->nt_channel;
cto->ct_flags = CT7_NOACK|CT7_TERMINATE;
if (isp_target_put_entry(isp, cto)) {
return (ENOMEM);
}
mp->nt_need_ack = 0;
}
if (isp_acknak_abts(isp, mp->nt_lreserved, 0) == ENOMEM) {
return (ENOMEM);
} else {
return (0);
}
}
/*
* Handle logout cases here
*/
if (mp->nt_ncode == NT_GLOBAL_LOGOUT) {
isp_del_all_wwn_entries(isp, mp->nt_channel);
}
if (mp->nt_ncode == NT_LOGOUT) {
if (!IS_2100(isp) && IS_FC(isp)) {
isp_del_wwn_entries(isp, mp);
}
}
/*
* General purpose acknowledgement
*/
if (mp->nt_need_ack) {
isp_prt(isp, ISP_LOGTINFO, "Notify Code 0x%x (qevalid=%d) being acked", mp->nt_ncode, mp->nt_lreserved != NULL);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
/*
* Don't need to use the guaranteed send because the caller can retry
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (isp_notify_ack(isp, mp->nt_lreserved));
}
return (0);
}
/*
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* Handle task management functions.
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*
* We show up here with a notify structure filled out.
*
* The nt_lreserved tag points to the original queue entry
*/
static void
isp_handle_platform_target_tmf(ispsoftc_t *isp, isp_notify_t *notify)
{
tstate_t *tptr;
fcportdb_t *lp;
struct ccb_immediate_notify *inot;
inot_private_data_t *ntp = NULL;
lun_id_t lun;
isp_prt(isp, ISP_LOGTDEBUG0, "%s: code 0x%x sid 0x%x tagval 0x%016llx chan %d lun 0x%x", __func__, notify->nt_ncode,
notify->nt_sid, (unsigned long long) notify->nt_tagval, notify->nt_channel, notify->nt_lun);
/*
* NB: This assignment is necessary because of tricky type conversion.
* XXX: This is tricky and I need to check this. If the lun isn't known
* XXX: for the task management function, it does not of necessity follow
* XXX: that it should go up stream to the wildcard listener.
*/
if (notify->nt_lun == LUN_ANY) {
lun = CAM_LUN_WILDCARD;
} else {
lun = notify->nt_lun;
}
tptr = get_lun_statep(isp, notify->nt_channel, lun);
if (tptr == NULL) {
tptr = get_lun_statep(isp, notify->nt_channel, CAM_LUN_WILDCARD);
if (tptr == NULL) {
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGWARN, "%s: no state pointer found for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
goto bad;
}
}
inot = (struct ccb_immediate_notify *) SLIST_FIRST(&tptr->inots);
if (inot == NULL) {
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGWARN, "%s: out of immediate notify structures for chan %d lun %#jx", __func__, notify->nt_channel, (uintmax_t)lun);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
goto bad;
}
if (isp_find_pdb_by_sid(isp, notify->nt_channel, notify->nt_sid, &lp) == 0) {
inot->initiator_id = CAM_TARGET_WILDCARD;
} else {
inot->initiator_id = lp->handle;
}
inot->seq_id = notify->nt_tagval;
inot->tag_id = notify->nt_tagval >> 32;
switch (notify->nt_ncode) {
case NT_ABORT_TASK:
isp_target_mark_aborted_early(isp, tptr, inot->tag_id);
inot->arg = MSG_ABORT_TASK;
break;
case NT_ABORT_TASK_SET:
isp_target_mark_aborted_early(isp, tptr, TAG_ANY);
inot->arg = MSG_ABORT_TASK_SET;
break;
case NT_CLEAR_ACA:
inot->arg = MSG_CLEAR_ACA;
break;
case NT_CLEAR_TASK_SET:
inot->arg = MSG_CLEAR_TASK_SET;
break;
case NT_LUN_RESET:
inot->arg = MSG_LOGICAL_UNIT_RESET;
break;
case NT_TARGET_RESET:
inot->arg = MSG_TARGET_RESET;
break;
default:
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGWARN, "%s: unknown TMF code 0x%x for chan %d lun %#jx", __func__, notify->nt_ncode, notify->nt_channel, (uintmax_t)lun);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
goto bad;
}
ntp = isp_get_ntpd(isp, tptr);
if (ntp == NULL) {
isp_prt(isp, ISP_LOGWARN, "%s: out of inotify private structures", __func__);
goto bad;
}
ISP_MEMCPY(&ntp->rd.nt, notify, sizeof (isp_notify_t));
if (notify->nt_lreserved) {
ISP_MEMCPY(&ntp->rd.data, notify->nt_lreserved, QENTRY_LEN);
ntp->rd.nt.nt_lreserved = &ntp->rd.data;
}
ntp->rd.seq_id = notify->nt_tagval;
ntp->rd.tag_id = notify->nt_tagval >> 32;
tptr->inot_count--;
SLIST_REMOVE_HEAD(&tptr->inots, sim_links.sle);
rls_lun_statep(isp, tptr);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, inot->ccb_h.path, "%s: Take FREE INOT count now %d\n", __func__, tptr->inot_count);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
inot->ccb_h.status = CAM_MESSAGE_RECV;
xpt_done((union ccb *)inot);
return;
bad:
if (tptr) {
rls_lun_statep(isp, tptr);
}
if (notify->nt_need_ack && notify->nt_lreserved) {
if (((isphdr_t *)notify->nt_lreserved)->rqs_entry_type == RQSTYPE_ABTS_RCVD) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (isp_acknak_abts(isp, notify->nt_lreserved, ENOMEM)) {
isp_prt(isp, ISP_LOGWARN, "you lose- unable to send an ACKNAK");
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_async(isp, ISPASYNC_TARGET_NOTIFY_ACK, notify->nt_lreserved);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
}
}
/*
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* Find the associated private data and mark it as dead so
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* we don't try to work on it any further.
*/
static void
isp_target_mark_aborted(ispsoftc_t *isp, union ccb *ccb)
{
tstate_t *tptr;
atio_private_data_t *atp;
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
union ccb *accb = ccb->cab.abort_ccb;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
tptr = get_lun_statep(isp, XS_CHANNEL(accb), XS_LUN(accb));
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (tptr == NULL) {
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
tptr = get_lun_statep(isp, XS_CHANNEL(accb), CAM_LUN_WILDCARD);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (tptr == NULL) {
ccb->ccb_h.status = CAM_REQ_INVALID;
return;
}
}
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atp = isp_find_atpd(isp, tptr, accb->atio.tag_id);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atp == NULL) {
ccb->ccb_h.status = CAM_REQ_INVALID;
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
} else {
atp->dead = 1;
ccb->ccb_h.status = CAM_REQ_CMP;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
rls_lun_statep(isp, tptr);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
static void
isp_target_mark_aborted_early(ispsoftc_t *isp, tstate_t *tptr, uint32_t tag_id)
{
atio_private_data_t *atp;
inot_private_data_t *restart_queue = tptr->restart_queue;
/*
* First, clean any commands pending restart
*/
tptr->restart_queue = NULL;
while (restart_queue) {
uint32_t this_tag_id;
inot_private_data_t *ntp = restart_queue;
restart_queue = ntp->rd.nt.nt_hba;
if (IS_24XX(isp)) {
this_tag_id = ((at7_entry_t *)ntp->rd.data)->at_rxid;
} else {
this_tag_id = ((at2_entry_t *)ntp->rd.data)->at_rxid;
}
if ((uint64_t)tag_id == TAG_ANY || tag_id == this_tag_id) {
isp_put_ntpd(isp, tptr, ntp);
} else {
ntp->rd.nt.nt_hba = tptr->restart_queue;
tptr->restart_queue = ntp;
}
}
/*
* Now mark other ones dead as well.
*/
for (atp = tptr->atpool; atp < &tptr->atpool[ATPDPSIZE]; atp++) {
if ((uint64_t)tag_id == TAG_ANY || atp->tag == tag_id) {
atp->dead = 1;
}
}
}
#ifdef ISP_INTERNAL_TARGET
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
//#define ISP_SEPARATE_STATUS 1
#define ISP_MULTI_CCBS 1
#if defined(ISP_MULTI_CCBS) && !defined(ISP_SEPARATE_STATUS)
#define ISP_SEPARATE_STATUS 1
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
typedef struct periph_private_data_t {
union ccb *ccb; /* original ATIO or Immediate Notify */
unsigned long offset; /* current offset */
int sequence; /* current CTIO sequence */
int ctio_cnt; /* current # of ctio's outstanding */
int
status_sent : 1,
on_queue : 1; /* on restart queue */
} ppd_t;
/*
* Each ATIO we allocate will have periph private data associated with it
* that maintains per-command state. This private to each ATIO.
*/
#define ATIO_PPD(ccb) ((ppd_t *)(((struct ccb_hdr *)ccb)->ppriv_ptr0))
/*
* Each CTIO we send downstream will get a pointer to the ATIO itself
* so that on completion we can retrieve that pointer.
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#define ccb_atio ppriv_ptr1
#define ccb_inot ppriv_ptr1
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* Each CTIO we send downstream will contain a sequence number
*/
#define CTIO_SEQ(ccb) ccb->ccb_h.ppriv_field0
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#define MAX_ISP_TARG_TRANSFER (2 << 20)
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
#define NISP_TARG_CMDS 64
#define NISP_TARG_NOTIFIES 64
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#define DISK_SHIFT 9
#define JUNK_SIZE 256
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
#define MULTI_CCB_DATA_LIM 8192
//#define MULTI_CCB_DATA_CNT 64
#define MULTI_CCB_DATA_CNT 8
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
extern u_int vm_kmem_size;
static int ca;
static uint32_t disk_size;
static uint8_t *disk_data = NULL;
static uint8_t *junk_data;
static MALLOC_DEFINE(M_ISPTARG, "ISPTARG", "ISP TARGET data");
struct isptarg_softc {
/* CCBs (CTIOs, ATIOs, INOTs) pending on the controller */
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
struct isp_ccbq work_queue;
struct isp_ccbq rework_queue;
struct isp_ccbq running_queue;
struct isp_ccbq inot_queue;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct cam_periph *periph;
struct cam_path *path;
ispsoftc_t *isp;
};
static periph_ctor_t isptargctor;
static periph_dtor_t isptargdtor;
static periph_start_t isptargstart;
static periph_init_t isptarginit;
static void isptarg_done(struct cam_periph *, union ccb *);
static void isptargasync(void *, u_int32_t, struct cam_path *, void *);
static int isptarg_rwparm(uint8_t *, uint8_t *, uint64_t, uint32_t, uint8_t **, uint32_t *, int *);
static struct periph_driver isptargdriver =
{
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isptarginit, "isptarg", TAILQ_HEAD_INITIALIZER(isptargdriver.units), 0
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
};
static void
isptarginit(void)
{
}
static void
isptargnotify(ispsoftc_t *isp, union ccb *iccb, struct ccb_immediate_notify *inot)
{
struct ccb_notify_acknowledge *ack = &iccb->cna2;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, inot->ccb_h.path, "%s: [0x%x] immediate notify for 0x%x from 0x%x status 0x%x arg 0x%x\n", __func__,
inot->tag_id, inot->initiator_id, inot->seq_id, inot->ccb_h.status, inot->arg);
ack->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
ack->ccb_h.flags = 0;
ack->ccb_h.retry_count = 0;
ack->ccb_h.cbfcnp = isptarg_done;
ack->ccb_h.timeout = 0;
ack->ccb_h.ccb_inot = inot;
ack->tag_id = inot->tag_id;
ack->seq_id = inot->seq_id;
ack->initiator_id = inot->initiator_id;
xpt_action(iccb);
}
static void
isptargstart(struct cam_periph *periph, union ccb *iccb)
{
Make the internal target > SPC2 (so REPORT LUNS can be tested). Give the NIL inquiry data real values other than just plain 0x7f in the first byte. MFC after: 2 weeks
2010-06-05 00:56:15 +00:00
const uint8_t niliqd[SHORT_INQUIRY_LENGTH] = {
0x7f, 0x0, 0x5, 0x2, 32, 0, 0, 0x32,
'F', 'R', 'E', 'E', 'B', 'S', 'D', ' ',
'S', 'C', 'S', 'I', ' ', 'N', 'U', 'L',
'L', ' ', 'D', 'E', 'V', 'I', 'C', 'E',
'0', '0', '0', '1'
};
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
const uint8_t iqd[SHORT_INQUIRY_LENGTH] = {
Make the internal target > SPC2 (so REPORT LUNS can be tested). Give the NIL inquiry data real values other than just plain 0x7f in the first byte. MFC after: 2 weeks
2010-06-05 00:56:15 +00:00
0, 0x0, 0x5, 0x2, 32, 0, 0, 0x32,
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
'F', 'R', 'E', 'E', 'B', 'S', 'D', ' ',
'S', 'C', 'S', 'I', ' ', 'M', 'E', 'M',
'O', 'R', 'Y', ' ', 'D', 'I', 'S', 'K',
'0', '0', '0', '1'
};
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
int r, i, more = 0, last, is_data_cmd = 0, is_write;
char *queue;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isptarg_softc *softc = periph->softc;
struct ccb_scsiio *csio;
lun_id_t return_lun;
struct ccb_accept_tio *atio;
uint8_t *cdb, *ptr, status;
uint8_t *data_ptr;
uint32_t data_len, flags;
struct ccb_hdr *ccbh;
mtx_assert(periph->sim->mtx, MA_OWNED);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(softc->isp, ISP_LOGTDEBUG1, iccb->ccb_h.path, "%s: function code 0x%x INOTQ=%c WORKQ=%c REWORKQ=%c\n", __func__, iccb->ccb_h.func_code,
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
TAILQ_FIRST(&softc->inot_queue)? 'y' : 'n', TAILQ_FIRST(&softc->work_queue)? 'y' : 'n', TAILQ_FIRST(&softc->rework_queue)? 'y' : 'n');
/*
* Check for immediate notifies first
*/
ccbh = TAILQ_FIRST(&softc->inot_queue);
if (ccbh) {
TAILQ_REMOVE(&softc->inot_queue, ccbh, periph_links.tqe);
if (TAILQ_FIRST(&softc->inot_queue) || TAILQ_FIRST(&softc->work_queue) || TAILQ_FIRST(&softc->rework_queue)) {
xpt_schedule(periph, 1);
}
isptargnotify(softc->isp, iccb, (struct ccb_immediate_notify *)ccbh);
return;
}
/*
* Check the rework (continuation) work queue first.
*/
ccbh = TAILQ_FIRST(&softc->rework_queue);
if (ccbh) {
atio = (struct ccb_accept_tio *)ccbh;
TAILQ_REMOVE(&softc->rework_queue, ccbh, periph_links.tqe);
more = TAILQ_FIRST(&softc->work_queue) || TAILQ_FIRST(&softc->rework_queue);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
queue = "rework";
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
ccbh = TAILQ_FIRST(&softc->work_queue);
if (ccbh == NULL) {
xpt_release_ccb(iccb);
return;
}
atio = (struct ccb_accept_tio *)ccbh;
TAILQ_REMOVE(&softc->work_queue, ccbh, periph_links.tqe);
more = TAILQ_FIRST(&softc->work_queue) != NULL;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
queue = "work";
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ATIO_PPD(atio)->on_queue = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atio->tag_id == 0xffffffff || atio->ccb_h.func_code != XPT_ACCEPT_TARGET_IO) {
panic("BAD ATIO");
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
data_len = is_write = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
data_ptr = NULL;
csio = &iccb->csio;
status = SCSI_STATUS_OK;
flags = CAM_SEND_STATUS;
memset(&atio->sense_data, 0, sizeof (atio->sense_data));
cdb = atio->cdb_io.cdb_bytes;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ISP_PATH_PRT(softc->isp, ISP_LOGTDEBUG0, ccbh->path, "%s: [0x%x] processing ATIO from %s queue initiator 0x%x CDB=0x%x data_offset=%u\n", __func__, atio->tag_id,
queue, atio->init_id, cdb[0], ATIO_PPD(atio)->offset);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return_lun = XS_LUN(atio);
if (return_lun != 0) {
xpt_print(atio->ccb_h.path, "[0x%x] Non-Zero Lun %d: cdb0=0x%x\n", atio->tag_id, return_lun, cdb[0]);
if (cdb[0] != INQUIRY && cdb[0] != REPORT_LUNS && cdb[0] != REQUEST_SENSE) {
status = SCSI_STATUS_CHECK_COND;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
SDFIXED(atio->sense_data)->error_code = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR;
SDFIXED(atio->sense_data)->flags = SSD_KEY_ILLEGAL_REQUEST;
SDFIXED(atio->sense_data)->add_sense_code = 0x25; /* LOGICAL UNIT NOT SUPPORTED */
Fix target mode compilation issues that arose after a change in the sense data structures. MFC after: 1 week
2011-12-27 14:59:24 +00:00
atio->sense_len = SSD_MIN_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
return_lun = CAM_LUN_WILDCARD;
}
switch (cdb[0]) {
case REQUEST_SENSE:
flags |= CAM_DIR_IN;
data_len = sizeof (atio->sense_data);
junk_data[0] = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR|SSD_KEY_NO_SENSE;
memset(junk_data+1, 0, data_len-1);
if (data_len > cdb[4]) {
data_len = cdb[4];
}
if (data_len) {
data_ptr = junk_data;
}
break;
case WRITE_6:
case WRITE_10:
case WRITE_12:
case WRITE_16:
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
is_write = 1;
/* FALLTHROUGH */
case READ_6:
case READ_10:
case READ_12:
case READ_16:
is_data_cmd = 1;
r = isptarg_rwparm(cdb, disk_data, disk_size, ATIO_PPD(atio)->offset, &data_ptr, &data_len, &last);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (r != 0) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
status = SCSI_STATUS_CHECK_COND;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
SDFIXED(atio->sense_data)->error_code = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR;
SDFIXED(atio->sense_data)->flags = SSD_KEY_ILLEGAL_REQUEST;
if (r == -1) {
SDFIXED(atio->sense_data)->add_sense_code = 0x21; /* LOGICAL BLOCK ADDRESS OUT OF RANGE */
} else {
SDFIXED(atio->sense_data)->add_sense_code = 0x20; /* INVALID COMMAND OPERATION CODE */
}
Fix target mode compilation issues that arose after a change in the sense data structures. MFC after: 1 week
2011-12-27 14:59:24 +00:00
atio->sense_len = SSD_MIN_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
#ifdef ISP_SEPARATE_STATUS
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (last && data_len) {
last = 0;
}
#endif
if (last == 0) {
flags &= ~CAM_SEND_STATUS;
}
if (data_len) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ATIO_PPD(atio)->offset += data_len;
if (is_write)
flags |= CAM_DIR_OUT;
else
flags |= CAM_DIR_IN;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
flags |= CAM_DIR_NONE;
}
}
break;
case INQUIRY:
flags |= CAM_DIR_IN;
if (cdb[1] || cdb[2] || cdb[3]) {
status = SCSI_STATUS_CHECK_COND;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
SDFIXED(atio->sense_data)->error_code = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR;
SDFIXED(atio->sense_data)->flags = SSD_KEY_UNIT_ATTENTION;
SDFIXED(atio->sense_data)->add_sense_code = 0x24; /* INVALID FIELD IN CDB */
Fix target mode compilation issues that arose after a change in the sense data structures. MFC after: 1 week
2011-12-27 14:59:24 +00:00
atio->sense_len = SSD_MIN_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
data_len = sizeof (iqd);
if (data_len > cdb[4]) {
data_len = cdb[4];
}
if (data_len) {
if (XS_LUN(iccb) != 0) {
memcpy(junk_data, niliqd, sizeof (iqd));
} else {
memcpy(junk_data, iqd, sizeof (iqd));
}
data_ptr = junk_data;
}
break;
case TEST_UNIT_READY:
flags |= CAM_DIR_NONE;
if (ca) {
ca = 0;
status = SCSI_STATUS_CHECK_COND;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
SDFIXED(atio->sense_data)->error_code = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR;
SDFIXED(atio->sense_data)->flags = SSD_KEY_UNIT_ATTENTION;
SDFIXED(atio->sense_data)->add_sense_code = 0x29; /* POWER ON, RESET, OR BUS DEVICE RESET OCCURRED */
Fix target mode compilation issues that arose after a change in the sense data structures. MFC after: 1 week
2011-12-27 14:59:24 +00:00
atio->sense_len = SSD_MIN_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
break;
case SYNCHRONIZE_CACHE:
case START_STOP:
case RESERVE:
case RELEASE:
case VERIFY_10:
flags |= CAM_DIR_NONE;
break;
case READ_CAPACITY:
flags |= CAM_DIR_IN;
if (cdb[2] || cdb[3] || cdb[4] || cdb[5]) {
status = SCSI_STATUS_CHECK_COND;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
SDFIXED(atio->sense_data)->error_code = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR;
SDFIXED(atio->sense_data)->flags = SSD_KEY_ILLEGAL_REQUEST;
SDFIXED(atio->sense_data)->add_sense_code = 0x24; /* INVALID FIELD IN CDB */
Fix target mode compilation issues that arose after a change in the sense data structures. MFC after: 1 week
2011-12-27 14:59:24 +00:00
atio->sense_len = SSD_MIN_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
if (cdb[8] & 0x1) { /* PMI */
junk_data[0] = 0xff;
junk_data[1] = 0xff;
junk_data[2] = 0xff;
junk_data[3] = 0xff;
} else {
uint64_t last_blk = (disk_size >> DISK_SHIFT) - 1;
if (last_blk < 0xffffffffULL) {
junk_data[0] = (last_blk >> 24) & 0xff;
junk_data[1] = (last_blk >> 16) & 0xff;
junk_data[2] = (last_blk >> 8) & 0xff;
junk_data[3] = (last_blk) & 0xff;
} else {
junk_data[0] = 0xff;
junk_data[1] = 0xff;
junk_data[2] = 0xff;
junk_data[3] = 0xff;
}
}
junk_data[4] = ((1 << DISK_SHIFT) >> 24) & 0xff;
junk_data[5] = ((1 << DISK_SHIFT) >> 16) & 0xff;
junk_data[6] = ((1 << DISK_SHIFT) >> 8) & 0xff;
junk_data[7] = ((1 << DISK_SHIFT)) & 0xff;
data_ptr = junk_data;
data_len = 8;
break;
case REPORT_LUNS:
flags |= CAM_DIR_IN;
memset(junk_data, 0, JUNK_SIZE);
junk_data[0] = (1 << 3) >> 24;
junk_data[1] = (1 << 3) >> 16;
junk_data[2] = (1 << 3) >> 8;
junk_data[3] = (1 << 3);
ptr = NULL;
for (i = 0; i < 1; i++) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ptr = &junk_data[8 + (i << 3)];
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (i >= 256) {
ptr[0] = 0x40 | ((i >> 8) & 0x3f);
}
ptr[1] = i;
}
data_ptr = junk_data;
data_len = (ptr + 8) - junk_data;
break;
default:
flags |= CAM_DIR_NONE;
status = SCSI_STATUS_CHECK_COND;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
SDFIXED(atio->sense_data)->error_code = SSD_ERRCODE_VALID|SSD_CURRENT_ERROR;
SDFIXED(atio->sense_data)->flags = SSD_KEY_ILLEGAL_REQUEST;
SDFIXED(atio->sense_data)->add_sense_code = 0x20; /* INVALID COMMAND OPERATION CODE */
Fix target mode compilation issues that arose after a change in the sense data structures. MFC after: 1 week
2011-12-27 14:59:24 +00:00
atio->sense_len = SSD_MIN_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
/*
* If we are done with the transaction, tell the
* controller to send status and perform a CMD_CMPLT.
* If we have associated sense data, see if we can
* send that too.
*/
if (status == SCSI_STATUS_CHECK_COND) {
flags |= CAM_SEND_SENSE;
csio->sense_len = atio->sense_len;
csio->sense_data = atio->sense_data;
flags &= ~CAM_DIR_MASK;
data_len = 0;
data_ptr = NULL;
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
cam_fill_ctio(csio, 0, isptarg_done, flags, MSG_SIMPLE_Q_TAG, atio->tag_id, atio->init_id, status, data_ptr, data_len, 30 * hz);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
iccb->ccb_h.target_id = atio->ccb_h.target_id;
iccb->ccb_h.target_lun = return_lun;
iccb->ccb_h.ccb_atio = atio;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
CTIO_SEQ(iccb) = ATIO_PPD(atio)->sequence++;
ATIO_PPD(atio)->ctio_cnt++;
if (flags & CAM_SEND_STATUS) {
KASSERT((ATIO_PPD(atio)->status_sent == 0), ("we have already sent status for 0x%x in %s", atio->tag_id, __func__));
ATIO_PPD(atio)->status_sent = 1;
}
ISP_PATH_PRT(softc->isp, ISP_LOGTDEBUG0, atio->ccb_h.path, "%s: sending downstream for 0x%x sequence %u len %u flags %x\n", __func__, atio->tag_id, CTIO_SEQ(iccb), data_len, flags);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_action(iccb);
if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) {
cam_release_devq(periph->path, 0, 0, 0, 0);
atio->ccb_h.status &= ~CAM_DEV_QFRZN;
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
#ifdef ISP_MULTI_CCBS
if (is_data_cmd && ATIO_PPD(atio)->status_sent == 0 && ATIO_PPD(atio)->ctio_cnt < MULTI_CCB_DATA_CNT && ATIO_PPD(atio)->on_queue == 0) {
ISP_PATH_PRT(softc->isp, ISP_LOGTDEBUG0, atio->ccb_h.path, "%s: more still to do for 0x%x\n", __func__, atio->tag_id);
TAILQ_INSERT_TAIL(&softc->rework_queue, &atio->ccb_h, periph_links.tqe);
ATIO_PPD(atio)->on_queue = 1;
more = 1;
}
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (more) {
xpt_schedule(periph, 1);
}
}
static cam_status
isptargctor(struct cam_periph *periph, void *arg)
{
struct isptarg_softc *softc;
softc = (struct isptarg_softc *)arg;
periph->softc = softc;
softc->periph = periph;
softc->path = periph->path;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(softc->isp, ISP_LOGTDEBUG1, periph->path, "%s called\n", __func__);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (CAM_REQ_CMP);
}
static void
isptargdtor(struct cam_periph *periph)
{
struct isptarg_softc *softc;
softc = (struct isptarg_softc *)periph->softc;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(softc->isp, ISP_LOGTDEBUG1, periph->path, "%s called\n", __func__);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
softc->periph = NULL;
softc->path = NULL;
periph->softc = NULL;
}
static void
isptarg_done(struct cam_periph *periph, union ccb *ccb)
{
struct isptarg_softc *softc;
ispsoftc_t *isp;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
uint32_t newoff;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct ccb_accept_tio *atio;
struct ccb_immediate_notify *inot;
cam_status status;
softc = (struct isptarg_softc *)periph->softc;
isp = softc->isp;
status = ccb->ccb_h.status & CAM_STATUS_MASK;
switch (ccb->ccb_h.func_code) {
case XPT_ACCEPT_TARGET_IO:
atio = (struct ccb_accept_tio *) ccb;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "[0x%x] ATIO seen in %s\n", atio->tag_id, __func__);
memset(ATIO_PPD(atio), 0, sizeof (ppd_t));
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h, periph_links.tqe);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ATIO_PPD(atio)->on_queue = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_schedule(periph, 1);
break;
case XPT_IMMEDIATE_NOTIFY:
inot = (struct ccb_immediate_notify *) ccb;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "[0x%x] INOT for 0x%x seen in %s\n", inot->tag_id, inot->seq_id, __func__);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
TAILQ_INSERT_TAIL(&softc->inot_queue, &ccb->ccb_h, periph_links.tqe);
xpt_schedule(periph, 1);
break;
case XPT_CONT_TARGET_IO:
atio = ccb->ccb_h.ccb_atio;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
KASSERT((ATIO_PPD(atio)->ctio_cnt != 0), ("ctio zero when finishing a CTIO"));
ATIO_PPD(atio)->ctio_cnt--;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
switch (ccb->ccb_h.status & CAM_STATUS_MASK) {
case CAM_MESSAGE_RECV:
newoff = (ccb->csio.msg_ptr[3] << 24) | (ccb->csio.msg_ptr[4] << 16) | (ccb->csio.msg_ptr[5] << 8) | (ccb->csio.msg_ptr[6]);
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "[0x%x] got message to return to reset offset to 0x%x at sequence %u\n", atio->tag_id, newoff, CTIO_SEQ(ccb));
ATIO_PPD(atio)->offset = newoff;
ATIO_PPD(atio)->status_sent = 0;
if (ATIO_PPD(atio)->on_queue == 0) {
TAILQ_INSERT_TAIL(&softc->rework_queue, &atio->ccb_h, periph_links.tqe);
ATIO_PPD(atio)->on_queue = 1;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
xpt_schedule(periph, 1);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
break;
default:
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
cam_error_print(ccb, CAM_ESF_ALL, CAM_EPF_ALL);
xpt_action((union ccb *)atio);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
break;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if ((ccb->ccb_h.flags & CAM_SEND_STATUS) == 0) {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "[0x%x] MID CTIO sequence %u seen in %s\n", atio->tag_id, CTIO_SEQ(ccb), __func__);
if (ATIO_PPD(atio)->status_sent == 0 && ATIO_PPD(atio)->on_queue == 0) {
TAILQ_INSERT_TAIL(&softc->rework_queue, &atio->ccb_h, periph_links.tqe);
ATIO_PPD(atio)->on_queue = 1;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_schedule(periph, 1);
} else {
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
KASSERT((ATIO_PPD(atio)->ctio_cnt == 0), ("ctio count still %d when we think we've sent the STATUS ctio", ATIO_PPD(atio)->ctio_cnt));
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "[0x%x] FINAL CTIO sequence %u seen in %s\n", atio->tag_id, CTIO_SEQ(ccb), __func__);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_action((union ccb *)atio);
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
ccb->ccb_h.status &= ~CAM_DEV_QFRZN;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_release_ccb(ccb);
break;
case XPT_NOTIFY_ACKNOWLEDGE:
if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
ccb->ccb_h.status &= ~CAM_DEV_QFRZN;
}
inot = ccb->ccb_h.ccb_inot;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG1, inot->ccb_h.path, "[0x%x] recycle notify for tag 0x%x\n", inot->tag_id, inot->seq_id);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_release_ccb(ccb);
xpt_action((union ccb *)inot);
break;
default:
xpt_print(ccb->ccb_h.path, "unexpected code 0x%x\n", ccb->ccb_h.func_code);
break;
}
}
static void
isptargasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
{
struct ac_contract *acp = arg;
struct ac_device_changed *fc = (struct ac_device_changed *) acp->contract_data;
if (code != AC_CONTRACT) {
return;
}
xpt_print(path, "0x%016llx Port ID 0x%06x %s\n", (unsigned long long) fc->wwpn, fc->port, fc->arrived? "arrived" : "departed");
}
static void
isp_target_thread(ispsoftc_t *isp, int chan)
{
union ccb *ccb = NULL;
int i;
void *wchan;
cam_status status;
struct isptarg_softc *softc = NULL;
struct cam_periph *periph = NULL, *wperiph = NULL;
struct cam_path *path, *wpath;
struct cam_sim *sim;
if (disk_data == NULL) {
disk_size = roundup2(vm_kmem_size >> 1, (1ULL << 20));
if (disk_size < (50 << 20)) {
disk_size = 50 << 20;
}
disk_data = malloc(disk_size, M_ISPTARG, M_WAITOK | M_ZERO);
if (disk_data == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: could not allocate disk data", __func__);
goto out;
}
isp_prt(isp, ISP_LOGINFO, "allocated a %ju MiB disk", (uintmax_t) (disk_size >> 20));
}
junk_data = malloc(JUNK_SIZE, M_ISPTARG, M_WAITOK | M_ZERO);
if (junk_data == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: could not allocate junk", __func__);
goto out;
}
softc = malloc(sizeof (*softc), M_ISPTARG, M_WAITOK | M_ZERO);
if (softc == NULL) {
isp_prt(isp, ISP_LOGERR, "%s: could not allocate softc", __func__);
goto out;
}
TAILQ_INIT(&softc->work_queue);
TAILQ_INIT(&softc->rework_queue);
TAILQ_INIT(&softc->running_queue);
TAILQ_INIT(&softc->inot_queue);
softc->isp = isp;
periphdriver_register(&isptargdriver);
ISP_GET_PC(isp, chan, sim, sim);
ISP_GET_PC(isp, chan, path, path);
Merge CAM locking changes from the projects/camlock branch to radically reduce lock congestion and improve SMP scalability of the SCSI/ATA stack, preparing the ground for the coming next GEOM direct dispatch support. Replace big per-SIM locks with bunch of smaller ones: - per-LUN locks to protect device and peripheral drivers state; - per-target locks to protect list of LUNs on target; - per-bus locks to protect reference counting; - per-send queue locks to protect queue of CCBs to be sent; - per-done queue locks to protect queue of completed CCBs; - remaining per-SIM locks now protect only HBA driver internals. While holding LUN lock it is allowed (while not recommended for performance reasons) to take SIM lock. The opposite acquisition order is forbidden. All the other locks are leaf locks, that can be taken anywhere, but should not be cascaded. Many functions, such as: xpt_action(), xpt_done(), xpt_async(), xpt_create_path(), etc. are no longer require (but allow) SIM lock to be held. To keep compatibility and solve cases where SIM lock can't be dropped, all xpt_async() calls in addition to xpt_done() calls are queued to completion threads for async processing in clean environment without SIM lock held. Instead of single CAM SWI thread, used for commands completion processing before, use multiple (depending on number of CPUs) threads. Load balanced between them using "hash" of the device B:T:L address. HBA drivers that can drop SIM lock during completion processing and have sufficient number of completion threads to efficiently scale to multiple CPUs can use new function xpt_done_direct() to avoid extra context switch. Make ahci(4) driver to use this mechanism depending on hardware setup. Sponsored by: iXsystems, Inc. MFC after: 2 months
2013-10-21 12:00:26 +00:00
status = xpt_create_path(&wpath, NULL, cam_sim_path(sim), CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (status != CAM_REQ_CMP) {
isp_prt(isp, ISP_LOGERR, "%s: could not allocate wildcard path", __func__);
return;
}
Merge CAM locking changes from the projects/camlock branch to radically reduce lock congestion and improve SMP scalability of the SCSI/ATA stack, preparing the ground for the coming next GEOM direct dispatch support. Replace big per-SIM locks with bunch of smaller ones: - per-LUN locks to protect device and peripheral drivers state; - per-target locks to protect list of LUNs on target; - per-bus locks to protect reference counting; - per-send queue locks to protect queue of CCBs to be sent; - per-done queue locks to protect queue of completed CCBs; - remaining per-SIM locks now protect only HBA driver internals. While holding LUN lock it is allowed (while not recommended for performance reasons) to take SIM lock. The opposite acquisition order is forbidden. All the other locks are leaf locks, that can be taken anywhere, but should not be cascaded. Many functions, such as: xpt_action(), xpt_done(), xpt_async(), xpt_create_path(), etc. are no longer require (but allow) SIM lock to be held. To keep compatibility and solve cases where SIM lock can't be dropped, all xpt_async() calls in addition to xpt_done() calls are queued to completion threads for async processing in clean environment without SIM lock held. Instead of single CAM SWI thread, used for commands completion processing before, use multiple (depending on number of CPUs) threads. Load balanced between them using "hash" of the device B:T:L address. HBA drivers that can drop SIM lock during completion processing and have sufficient number of completion threads to efficiently scale to multiple CPUs can use new function xpt_done_direct() to avoid extra context switch. Make ahci(4) driver to use this mechanism depending on hardware setup. Sponsored by: iXsystems, Inc. MFC after: 2 months
2013-10-21 12:00:26 +00:00
status = xpt_create_path(&path, NULL, cam_sim_path(sim), 0, 0);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (status != CAM_REQ_CMP) {
xpt_free_path(wpath);
isp_prt(isp, ISP_LOGERR, "%s: could not allocate path", __func__);
return;
}
ISP_LOCK(isp);
status = cam_periph_alloc(isptargctor, NULL, isptargdtor, isptargstart, "isptarg", CAM_PERIPH_BIO, wpath, NULL, 0, softc);
if (status != CAM_REQ_CMP) {
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGERR, "%s: cam_periph_alloc for wildcard failed", __func__);
goto out;
}
wperiph = cam_periph_find(wpath, "isptarg");
if (wperiph == NULL) {
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGERR, "%s: wildcard periph already allocated but doesn't exist", __func__);
goto out;
}
status = cam_periph_alloc(isptargctor, NULL, isptargdtor, isptargstart, "isptarg", CAM_PERIPH_BIO, path, NULL, 0, softc);
if (status != CAM_REQ_CMP) {
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGERR, "%s: cam_periph_alloc failed", __func__);
goto out;
}
periph = cam_periph_find(path, "isptarg");
if (periph == NULL) {
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGERR, "%s: periph already allocated but doesn't exist", __func__);
goto out;
}
status = xpt_register_async(AC_CONTRACT, isptargasync, isp, wpath);
if (status != CAM_REQ_CMP) {
ISP_UNLOCK(isp);
isp_prt(isp, ISP_LOGERR, "%s: xpt_register_async failed", __func__);
goto out;
}
ISP_UNLOCK(isp);
ccb = xpt_alloc_ccb();
/*
* Make sure role is none.
*/
xpt_setup_ccb(&ccb->ccb_h, periph->path, 10);
ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
ccb->knob.xport_specific.fc.role = KNOB_ROLE_NONE;
ccb->knob.xport_specific.fc.valid = KNOB_VALID_ROLE;
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
/*
* Now enable luns
*/
xpt_setup_ccb(&ccb->ccb_h, periph->path, 10);
ccb->ccb_h.func_code = XPT_EN_LUN;
ccb->cel.enable = 1;
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
if (ccb->ccb_h.status != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
xpt_print(periph->path, "failed to enable lun (0x%x)\n", ccb->ccb_h.status);
goto out;
}
xpt_setup_ccb(&ccb->ccb_h, wperiph->path, 10);
ccb->ccb_h.func_code = XPT_EN_LUN;
ccb->cel.enable = 1;
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
if (ccb->ccb_h.status != CAM_REQ_CMP) {
xpt_free_ccb(ccb);
xpt_print(wperiph->path, "failed to enable lun (0x%x)\n", ccb->ccb_h.status);
goto out;
}
xpt_free_ccb(ccb);
/*
* Add resources
*/
ISP_GET_PC_ADDR(isp, chan, target_proc, wchan);
for (i = 0; i < 4; i++) {
ccb = malloc(sizeof (*ccb), M_ISPTARG, M_WAITOK | M_ZERO);
xpt_setup_ccb(&ccb->ccb_h, wperiph->path, 1);
ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO;
ccb->ccb_h.cbfcnp = isptarg_done;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->ccb_h.ppriv_ptr0 = malloc(sizeof (ppd_t), M_ISPTARG, M_WAITOK | M_ZERO);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
}
for (i = 0; i < NISP_TARG_CMDS; i++) {
ccb = malloc(sizeof (*ccb), M_ISPTARG, M_WAITOK | M_ZERO);
xpt_setup_ccb(&ccb->ccb_h, periph->path, 1);
ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO;
ccb->ccb_h.cbfcnp = isptarg_done;
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->ccb_h.ppriv_ptr0 = malloc(sizeof (ppd_t), M_ISPTARG, M_WAITOK | M_ZERO);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
}
for (i = 0; i < 4; i++) {
ccb = malloc(sizeof (*ccb), M_ISPTARG, M_WAITOK | M_ZERO);
xpt_setup_ccb(&ccb->ccb_h, wperiph->path, 1);
ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
ccb->ccb_h.cbfcnp = isptarg_done;
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
}
for (i = 0; i < NISP_TARG_NOTIFIES; i++) {
ccb = malloc(sizeof (*ccb), M_ISPTARG, M_WAITOK | M_ZERO);
xpt_setup_ccb(&ccb->ccb_h, periph->path, 1);
ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
ccb->ccb_h.cbfcnp = isptarg_done;
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
}
/*
* Now turn it all back on
*/
xpt_setup_ccb(&ccb->ccb_h, periph->path, 10);
ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
ccb->knob.xport_specific.fc.valid = KNOB_VALID_ROLE;
ccb->knob.xport_specific.fc.role = KNOB_ROLE_TARGET;
ISP_LOCK(isp);
xpt_action(ccb);
ISP_UNLOCK(isp);
/*
* Okay, while things are still active, sleep...
*/
ISP_LOCK(isp);
for (;;) {
ISP_GET_PC(isp, chan, proc_active, i);
if (i == 0) {
break;
}
msleep(wchan, &isp->isp_lock, PUSER, "tsnooze", 0);
}
ISP_UNLOCK(isp);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
out:
if (wperiph) {
cam_periph_invalidate(wperiph);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (periph) {
cam_periph_invalidate(periph);
}
if (junk_data) {
free(junk_data, M_ISPTARG);
}
if (disk_data) {
free(disk_data, M_ISPTARG);
}
if (softc) {
free(softc, M_ISPTARG);
}
xpt_free_path(path);
xpt_free_path(wpath);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
isp_target_thread_pi(void *arg)
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_spi *pi = arg;
isp_target_thread(cam_sim_softc(pi->sim), cam_sim_bus(pi->sim));
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
isp_target_thread_fc(void *arg)
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_fc *fc = arg;
isp_target_thread(cam_sim_softc(fc->sim), cam_sim_bus(fc->sim));
}
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static int
isptarg_rwparm(uint8_t *cdb, uint8_t *dp, uint64_t dl, uint32_t offset, uint8_t **kp, uint32_t *tl, int *lp)
{
uint32_t cnt, curcnt;
uint64_t lba;
switch (cdb[0]) {
case WRITE_16:
case READ_16:
cnt = (((uint32_t)cdb[10]) << 24) |
(((uint32_t)cdb[11]) << 16) |
(((uint32_t)cdb[12]) << 8) |
((uint32_t)cdb[13]);
lba = (((uint64_t)cdb[2]) << 56) |
(((uint64_t)cdb[3]) << 48) |
(((uint64_t)cdb[4]) << 40) |
(((uint64_t)cdb[5]) << 32) |
(((uint64_t)cdb[6]) << 24) |
(((uint64_t)cdb[7]) << 16) |
(((uint64_t)cdb[8]) << 8) |
((uint64_t)cdb[9]);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case WRITE_12:
case READ_12:
cnt = (((uint32_t)cdb[6]) << 16) |
(((uint32_t)cdb[7]) << 8) |
((u_int32_t)cdb[8]);
lba = (((uint32_t)cdb[2]) << 24) |
(((uint32_t)cdb[3]) << 16) |
(((uint32_t)cdb[4]) << 8) |
((uint32_t)cdb[5]);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case WRITE_10:
case READ_10:
cnt = (((uint32_t)cdb[7]) << 8) |
((u_int32_t)cdb[8]);
lba = (((uint32_t)cdb[2]) << 24) |
(((uint32_t)cdb[3]) << 16) |
(((uint32_t)cdb[4]) << 8) |
((uint32_t)cdb[5]);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case WRITE_6:
case READ_6:
cnt = cdb[4];
if (cnt == 0) {
cnt = 256;
}
lba = (((uint32_t)cdb[1] & 0x1f) << 16) |
(((uint32_t)cdb[2]) << 8) |
((uint32_t)cdb[3]);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
break;
default:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
return (-1);
}
cnt <<= DISK_SHIFT;
lba <<= DISK_SHIFT;
if (offset == cnt) {
*lp = 1;
return (0);
}
if (lba + cnt > dl) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
return (-2);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
curcnt = MAX_ISP_TARG_TRANSFER;
if (offset + curcnt >= cnt) {
curcnt = cnt - offset;
*lp = 1;
} else {
*lp = 0;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
#ifdef ISP_MULTI_CCBS
if (curcnt > MULTI_CCB_DATA_LIM)
curcnt = MULTI_CCB_DATA_LIM;
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*tl = curcnt;
*kp = &dp[lba + offset];
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
return (0);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#endif
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#endif
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
static void
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
isp_cam_async(void *cbarg, uint32_t code, struct cam_path *path, void *arg)
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
{
struct cam_sim *sim;
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
int bus, tgt;
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
ispsoftc_t *isp;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
sim = (struct cam_sim *)cbarg;
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
isp = (ispsoftc_t *) cam_sim_softc(sim);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
bus = cam_sim_bus(sim);
tgt = xpt_path_target_id(path);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
switch (code) {
case AC_LOST_DEVICE:
Add in isp_debug variable. It defaults to zero unless CAMDEBUG is defined where it defaults to one. Change simq width allocation to the max number of commands supported by the HBA after f/w fires up- not the constant MAXISPREQUEST value. Do some stylistic changes.
1999-10-17 18:50:47 +00:00
if (IS_SCSI(isp)) {
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
uint16_t oflags, nflags;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdparam *sdp = SDPARAM(isp, bus);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
From PHK's flex tool- we can get -1 returned from xpt_path_target_id, so don't index off of it. MFC after: 1 day
2002-10-10 17:29:05 +00:00
if (tgt >= 0) {
nflags = sdp->isp_devparam[tgt].nvrm_flags;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
#ifndef ISP_TARGET_MODE
From PHK's flex tool- we can get -1 returned from xpt_path_target_id, so don't index off of it. MFC after: 1 day
2002-10-10 17:29:05 +00:00
nflags &= DPARM_SAFE_DFLT;
if (isp->isp_loaded_fw) {
nflags |= DPARM_NARROW | DPARM_ASYNC;
}
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
#else
From PHK's flex tool- we can get -1 returned from xpt_path_target_id, so don't index off of it. MFC after: 1 day
2002-10-10 17:29:05 +00:00
nflags = DPARM_DEFAULT;
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
#endif
From PHK's flex tool- we can get -1 returned from xpt_path_target_id, so don't index off of it. MFC after: 1 day
2002-10-10 17:29:05 +00:00
oflags = sdp->isp_devparam[tgt].goal_flags;
sdp->isp_devparam[tgt].goal_flags = nflags;
sdp->isp_devparam[tgt].dev_update = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdp->update = 1;
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
From PHK's flex tool- we can get -1 returned from xpt_path_target_id, so don't index off of it. MFC after: 1 day
2002-10-10 17:29:05 +00:00
sdp->isp_devparam[tgt].goal_flags = oflags;
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
break;
default:
Finally eliminate as many of the printf calls as possible (still leaving ones where we have a CAM path) and replacing them with calls to isp_prt., Eliminate isp_unit references- we no longer have an isp_unit- we now have an isp_dev that device_get_unit can work with.
2001-03-01 02:14:54 +00:00
isp_prt(isp, ISP_LOGWARN, "isp_cam_async: Code 0x%x", code);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
break;
}
}
static void
clarify headers;move uninit to outer layer;remove watchdog
1998-12-28 19:22:27 +00:00
isp_poll(struct cam_sim *sim)
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
{
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
ispsoftc_t *isp = cam_sim_softc(sim);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
uint32_t isr;
uint16_t sema, mbox;
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
if (ISP_READ_ISR(isp, &isr, &sema, &mbox)) {
Add 2 Gigabit Fibre Channel support (2300 && 2312 cards). This required some reworking (and consequent cleanup) of the interrupt service code. Also begin to start a cleanup of target mode support that will (eventually) not require more inforamtion routed with the ATIO to come back with the CTIO other than tag. MFC after: 4 weeks
2001-08-31 21:39:04 +00:00
isp_intr(isp, isr, sema, mbox);
I don't know what I was thinking- if I have two separate busses on on SIM (as is true for the 1280 and the 12160), then I have to have separate flags && status for *both* busses. *Whap*. Implement condition variables for coordination with some target mode events. It's nice to use these and not panic in obscure little places in the kernel like 'propagate_priority' just because we went to sleep holding a mutex, or some other absurd thing. Remove some bogus ISP_UNLOCK calls. *Whap*. No longer require that somebody do a lun enable on the wildcard device to enable target mode. They are, in fact, orthogonal. A wildcard open is a statement that somebody upstream is willing to accept commands which are otherwise unrouteable. Now, for QLogic regular SCSI target mode, this won't matter for a damn because we'll never see ATIOs for luns we haven't enabled (are listening for, if you will). But for SCCLUN fibre channel SCSI, we get all kinds of ATIOs. We can either reflect them back here with minimal info (which is isp_target.c:isp_endcmd() is for), or the wildcard device (nominally targbh) can handle them. Do further checking against firmware attributes to see whether we can, in fact, support target mode in Fibre Channel. For now, require SCCLUN f/w to supoprt FC target mode. This is an awful lot of change, but target mode *still* isn't quite right. MFC after: 4 weeks
2001-09-04 21:53:12 +00:00
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
Add in isp_debug variable. It defaults to zero unless CAMDEBUG is defined where it defaults to one. Change simq width allocation to the max number of commands supported by the HBA after f/w fires up- not the constant MAXISPREQUEST value. Do some stylistic changes.
1999-10-17 18:50:47 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
static void
isp_watchdog(void *arg)
Add in a watchdog routine to catch cases where we've dropped the command. Apparently the f/w has finished the command, but somehow an interrupt is being lost. So, we just plain wedge when booting alphas. This is a general routine we've needed for a while.
2000-05-09 01:08:21 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct ccb_scsiio *xs = arg;
ispsoftc_t *isp;
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
uint32_t ohandle = ISP_HANDLE_FREE, handle;
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp = XS_ISP(xs);
Add in a watchdog routine to catch cases where we've dropped the command. Apparently the f/w has finished the command, but somehow an interrupt is being lost. So, we just plain wedge when booting alphas. This is a general routine we've needed for a while.
2000-05-09 01:08:21 +00:00
handle = isp_find_handle(isp, xs);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
/*
* Hand crank the interrupt code just to be sure the command isn't stuck somewhere.
*/
if (handle != ISP_HANDLE_FREE) {
uint32_t isr;
uint16_t sema, mbox;
if (ISP_READ_ISR(isp, &isr, &sema, &mbox) != 0) {
isp_intr(isp, isr, sema, mbox);
}
ohandle = handle;
handle = isp_find_handle(isp, xs);
}
Redo how commands handles are created and managed and implement sequence numbers and handle types in rational way. This will better protect from (unwittingly) dealing with stale handles/commands. Fix the watchdog timeout code to better protect itself from mistakes. If we run an abort on a putatively timed out command, the command may in fact get completed, so check to make sure the command we're timing it out is still around. If the abort succeeds, btw, the command should get returned via a different path.
2010-02-03 21:09:32 +00:00
if (handle != ISP_HANDLE_FREE) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
Redo how commands handles are created and managed and implement sequence numbers and handle types in rational way. This will better protect from (unwittingly) dealing with stale handles/commands. Fix the watchdog timeout code to better protect itself from mistakes. If we run an abort on a putatively timed out command, the command may in fact get completed, so check to make sure the command we're timing it out is still around. If the abort succeeds, btw, the command should get returned via a different path.
2010-02-03 21:09:32 +00:00
* Try and make sure the command is really dead before
* we release the handle (and DMA resources) for reuse.
*
* If we are successful in aborting the command then
* we're done here because we'll get the command returned
* back separately.
*/
if (isp_control(isp, ISPCTL_ABORT_CMD, xs) == 0) {
return;
}
/*
* Note that after calling the above, the command may in
* fact have been completed.
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*/
Redo how commands handles are created and managed and implement sequence numbers and handle types in rational way. This will better protect from (unwittingly) dealing with stale handles/commands. Fix the watchdog timeout code to better protect itself from mistakes. If we run an abort on a putatively timed out command, the command may in fact get completed, so check to make sure the command we're timing it out is still around. If the abort succeeds, btw, the command should get returned via a different path.
2010-02-03 21:09:32 +00:00
xs = isp_find_xs(isp, handle);
/*
* If the command no longer exists, then we won't
* be able to find the xs again with this handle.
*/
if (xs == NULL) {
return;
}
Oops! If we're deciding a command is now really dead, make *darned* sure that it really is by issuing a ISPCTL_ABORT_CMD just on the off chance the f/w will start it up again and, ha ha, start using the DMA resources we gave it but are now taking away.
2000-07-05 06:44:17 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
Redo how commands handles are created and managed and implement sequence numbers and handle types in rational way. This will better protect from (unwittingly) dealing with stale handles/commands. Fix the watchdog timeout code to better protect itself from mistakes. If we run an abort on a putatively timed out command, the command may in fact get completed, so check to make sure the command we're timing it out is still around. If the abort succeeds, btw, the command should get returned via a different path.
2010-02-03 21:09:32 +00:00
* After this point, the command is really dead.
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
*/
if (XS_XFRLEN(xs)) {
ISP_DMAFREE(isp, xs, handle);
}
isp_destroy_handle(isp, handle);
Redo how commands handles are created and managed and implement sequence numbers and handle types in rational way. This will better protect from (unwittingly) dealing with stale handles/commands. Fix the watchdog timeout code to better protect itself from mistakes. If we run an abort on a putatively timed out command, the command may in fact get completed, so check to make sure the command we're timing it out is still around. If the abort succeeds, btw, the command should get returned via a different path.
2010-02-03 21:09:32 +00:00
isp_prt(isp, ISP_LOGERR, "%s: timeout for handle 0x%x", __func__, handle);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
xs->ccb_h.status &= ~CAM_STATUS_MASK;
xs->ccb_h.status |= CAM_CMD_TIMEOUT;
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
isp_prt_endcmd(isp, xs);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_done(xs);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
} else {
if (ohandle != ISP_HANDLE_FREE) {
isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle 0x%x, recovered during interrupt", __func__, ohandle);
} else {
isp_prt(isp, ISP_LOGWARN, "%s: timeout for handle already free", __func__);
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
}
static void
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_make_here(ispsoftc_t *isp, int chan, int tgt)
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
union ccb *ccb;
struct isp_fc *fc = ISP_FC_PC(isp, chan);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (isp_autoconfig == 0) {
return;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
/*
Add a new primitive, XPT_SCAN_TGT, to cover the range between scanning a whole bus (XPT_SCAN_BUS) and a single lun on that bus (XPT_SCAN_LUN). It's less resource comsumptive than scanning a whole bus when the caller knows only one target has changes. Reviewed by: scsi@ Sponsored by: Panasas MFC after: 1 month
2010-05-26 22:49:42 +00:00
* Allocate a CCB, create a wildcard path for this target and schedule a rescan.
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
*/
Revert a driver API change to xpt_alloc_ccb that isn't necessary. Fix a couple of associated error checks.
2007-04-18 04:58:53 +00:00
ccb = xpt_alloc_ccb_nowait();
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
if (ccb == NULL) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGWARN, "Chan %d unable to alloc CCB for rescan", chan);
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
return;
}
MFprojects/camlock r248982: Stop abusing xpt_periph in random plases that really have no periph related to CCB, for example, bus scanning. NULL value is fine in such cases and it is correctly logged in debug messages as "noperiph". If at some point we need some real XPT periphs (alike to pmpX now), quite likely they will be per-bus, and not a single global instance as xpt_periph now.
2013-04-14 09:55:48 +00:00
if (xpt_create_path(&ccb->ccb_h.path, NULL, cam_sim_path(fc->sim),
tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
isp_prt(isp, ISP_LOGWARN, "unable to create path for rescan");
xpt_free_ccb(ccb);
return;
}
xpt_rescan(ccb);
}
static void
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_make_gone(ispsoftc_t *isp, int chan, int tgt)
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
{
struct cam_path *tp;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_fc *fc = ISP_FC_PC(isp, chan);
if (isp_autoconfig == 0) {
return;
}
if (xpt_create_path(&tp, NULL, cam_sim_path(fc->sim), tgt, CAM_LUN_WILDCARD) == CAM_REQ_CMP) {
Use the new xpt_rescan function to truly now have dynamic attachment of new devices that arrive (and we notice them via async Fibre Channel events). We've always had the right thing (of sorts) happen when devices go away- this is the corollary function that makes multipath failover actually work. MFC after: 2 weeks
2007-02-23 05:51:57 +00:00
xpt_async(AC_LOST_DEVICE, tp, NULL);
xpt_free_path(tp);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
}
/*
* Gone Device Timer Function- when we have decided that a device has gone
* away, we wait a specific period of time prior to telling the OS it has
* gone away.
*
* This timer function fires once a second and then scans the port database
* for devices that are marked dead but still have a virtual target assigned.
* We decrement a counter for that port database entry, and when it hits zero,
* we tell the OS the device has gone away.
*/
static void
isp_gdt(void *arg)
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
{
struct isp_fc *fc = arg;
taskqueue_enqueue(taskqueue_thread, &fc->gtask);
}
static void
isp_gdt_task(void *arg, int pending)
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_fc *fc = arg;
ispsoftc_t *isp = fc->isp;
int chan = fc - isp->isp_osinfo.pc.fc;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
fcportdb_t *lp;
int dbidx, tgt, more_to_do = 0;
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
ISP_LOCK(isp);
isp_prt(isp, ISP_LOGDEBUG0, "Chan %d GDT timer expired", chan);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
lp = &FCPARAM(isp, chan)->portdb[dbidx];
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (lp->state != FC_PORTDB_STATE_ZOMBIE) {
continue;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lp->dev_map_idx == 0 || lp->target_mode) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
continue;
}
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
if (lp->gone_timer != 0) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG, "%s: Chan %d more to do for target %u (timer=%u)", __func__, chan, lp->dev_map_idx - 1, lp->gone_timer);
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
lp->gone_timer -= 1;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
more_to_do++;
continue;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tgt = lp->dev_map_idx - 1;
FCPARAM(isp, chan)->isp_dev_map[tgt] = 0;
lp->dev_map_idx = 0;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
lp->state = FC_PORTDB_STATE_NIL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom3, chan, lp->portid, tgt, "Gone Device Timeout");
isp_make_gone(isp, chan, tgt);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (fc->ready) {
if (more_to_do) {
callout_reset(&fc->gdt, hz, isp_gdt, fc);
} else {
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
callout_deactivate(&fc->gdt);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG, "Chan %d Stopping Gone Device Timer @ %lu", chan, (unsigned long) time_uptime);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
}
Add in a watchdog routine to catch cases where we've dropped the command. Apparently the f/w has finished the command, but somehow an interrupt is being lost. So, we just plain wedge when booting alphas. This is a general routine we've needed for a while.
2000-05-09 01:08:21 +00:00
}
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
ISP_UNLOCK(isp);
Add in a watchdog routine to catch cases where we've dropped the command. Apparently the f/w has finished the command, but somehow an interrupt is being lost. So, we just plain wedge when booting alphas. This is a general routine we've needed for a while.
2000-05-09 01:08:21 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* Loop Down Timer Function- when loop goes down, a timer is started and
* and after it expires we come here and take all probational devices that
* the OS knows about and the tell the OS that they've gone away.
*
* We don't clear the devices out of our port database because, when loop
* come back up, we have to do some actual cleanup with the chip at that
* point (implicit PLOGO, e.g., to get the chip's port database state right).
*/
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
static void
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
isp_ldt(void *arg)
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
{
struct isp_fc *fc = arg;
taskqueue_enqueue(taskqueue_thread, &fc->ltask);
}
static void
isp_ldt_task(void *arg, int pending)
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_fc *fc = arg;
ispsoftc_t *isp = fc->isp;
int chan = fc - isp->isp_osinfo.pc.fc;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
fcportdb_t *lp;
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
int dbidx, tgt, i;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
ISP_LOCK(isp);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Loop Down Timer expired @ %lu", chan, (unsigned long) time_uptime);
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
callout_deactivate(&fc->ldt);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* Notify to the OS all targets who we now consider have departed.
*/
for (dbidx = 0; dbidx < MAX_FC_TARG; dbidx++) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
lp = &FCPARAM(isp, chan)->portdb[dbidx];
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (lp->state != FC_PORTDB_STATE_PROBATIONAL) {
continue;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lp->dev_map_idx == 0 || lp->target_mode) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
continue;
}
/*
* XXX: CLEAN UP AND COMPLETE ANY PENDING COMMANDS FIRST!
*/
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
for (i = 0; i < isp->isp_maxcmds; i++) {
struct ccb_scsiio *xs;
if (!ISP_VALID_HANDLE(isp, isp->isp_xflist[i].handle)) {
continue;
}
if ((xs = isp->isp_xflist[i].cmd) == NULL) {
continue;
}
if (dbidx != (FCPARAM(isp, chan)->isp_dev_map[XS_TGT(xs)] - 1)) {
continue;
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
isp_prt(isp, ISP_LOGWARN, "command handle 0x%x for %d.%d.%d orphaned by loop down timeout",
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
isp->isp_xflist[i].handle, chan, XS_TGT(xs), XS_LUN(xs));
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* Mark that we've announced that this device is gone....
*/
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
lp->announced = 1;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* but *don't* change the state of the entry. Just clear
* any target id stuff and announce to CAM that the
* device is gone. This way any necessary PLOGO stuff
* will happen when loop comes back up.
*/
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tgt = lp->dev_map_idx - 1;
FCPARAM(isp, chan)->isp_dev_map[tgt] = 0;
lp->dev_map_idx = 0;
lp->state = FC_PORTDB_STATE_NIL;
isp_prt(isp, ISP_LOGCONFIG, prom3, chan, lp->portid, tgt, "Loop Down Timeout");
isp_make_gone(isp, chan, tgt);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
if (FCPARAM(isp, chan)->role & ISP_ROLE_INITIATOR) {
isp_unfreeze_loopdown(isp, chan);
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* The loop down timer has expired. Wake up the kthread
* to notice that fact (or make it false).
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->loop_dead = 1;
fc->loop_down_time = fc->loop_down_limit+1;
wakeup(fc);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
ISP_UNLOCK(isp);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
static void
isp_kthread(void *arg)
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct isp_fc *fc = arg;
ispsoftc_t *isp = fc->isp;
int chan = fc - isp->isp_osinfo.pc.fc;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
int slp = 0;
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
mtx_lock(&isp->isp_osinfo.lock);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
for (;;) {
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
int lb, lim;
Add get/set param ioctl support. Remove sim queue freezes for resource shortages. I've had too many strange race conditions where I freeze on a resource shortage but never get unfrozen. Consolidate the remaining sim queue freeze condition (for loopdown) into an inline with debug messages that allows us to track problems at ISP_LOGDEBUG0 level easier. Change a bunch of debug messages about loop down/up conditions to ISP_LOGDEBUG0 level. Remove dead isp_relsim code. Change some internal flag stuff for efficiency. Complain vociferously if we try and use our FC scratch area while it's busy being used already (I mean, if we don't have solaris' ability to sleep as an interrupt thread which would allow us to just use a p/v semaphore, at least *say* when you've just borked yourself). Add infrastructure to allow overrides of hard loopid && initiator id from boot variables. Fix the usual quota of silly bugs: + 'ktmature' needs to be per-instance. Argh. + When entering isp_watchdog, set intsok to zero, preserving old value to restore later. It's not nice to try and sleep from splsoftclock. + Fix tick overflow buglet in checking timeout value. MFC after: 1 week
2002-07-08 17:42:47 +00:00
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d checking FC state", __func__, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
lb = isp_fc_runstate(isp, chan, 250000);
/*
* Our action is different based upon whether we're supporting
* Initiator mode or not. If we are, we might freeze the simq
* when loop is down and set all sorts of different delays to
* check again.
*
* If not, we simply just wait for loop to come up.
*/
Put gone device timer into a structure tag that can hold more than 32 seconds. Oops. Untangle some of the confusion about what role means when it's in the FCPARAM/SDPARAM or isp_fc/isp_spi structures. This fixed a problem about seeing targets appear if you've turned off autologin and find them, or rather don't, via camcontrol rescan. MFC after: 1 month
2010-03-17 02:48:14 +00:00
if (lb && (FCPARAM(isp, chan)->role & ISP_ROLE_INITIATOR)) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* Increment loop down time by the last sleep interval
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->loop_down_time += slp;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
if (lb < 0) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d FC loop not up (down count %d)", __func__, chan, fc->loop_down_time);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d FC got to %d (down count %d)", __func__, chan, lb, fc->loop_down_time);
Remove ISP_SMPLOCK stuff- we're just using locking now. Correctly reintroduce loop_seen_once semantics- that is, if we've never seen good link, start bouncing commands with CAM_SEL_TIMEOUT. But we have to be careful to have let ourselves try (in isp_kthread) to check for loop up at least once. PR: 28992 MFC after: 1 week
2001-07-25 04:23:52 +00:00
}
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
/*
* If we've never seen loop up and we've waited longer
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
* than quickboot time, or we've seen loop up but we've
* waited longer than loop_down_limit, give up and go
* to sleep until loop comes up.
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (FCPARAM(isp, chan)->loop_seen_once == 0) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
lim = isp_quickboot_time;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
lim = fc->loop_down_limit;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (fc->loop_down_time >= lim) {
isp_freeze_loopdown(isp, chan, "loop limit hit");
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
slp = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (fc->loop_down_time < 10) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
slp = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (fc->loop_down_time < 30) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
slp = 5;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (fc->loop_down_time < 60) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
slp = 10;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (fc->loop_down_time < 120) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
slp = 20;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
slp = 30;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (lb) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d FC Loop Down", __func__, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->loop_down_time += slp;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (fc->loop_down_time > 300)
slp = 0;
else
slp = 60;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d FC state OK", __func__, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->loop_down_time = 0;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
slp = 0;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Add get/set param ioctl support. Remove sim queue freezes for resource shortages. I've had too many strange race conditions where I freeze on a resource shortage but never get unfrozen. Consolidate the remaining sim queue freeze condition (for loopdown) into an inline with debug messages that allows us to track problems at ISP_LOGDEBUG0 level easier. Change a bunch of debug messages about loop down/up conditions to ISP_LOGDEBUG0 level. Remove dead isp_relsim code. Change some internal flag stuff for efficiency. Complain vociferously if we try and use our FC scratch area while it's busy being used already (I mean, if we don't have solaris' ability to sleep as an interrupt thread which would allow us to just use a p/v semaphore, at least *say* when you've just borked yourself). Add infrastructure to allow overrides of hard loopid && initiator id from boot variables. Fix the usual quota of silly bugs: + 'ktmature' needs to be per-instance. Argh. + When entering isp_watchdog, set intsok to zero, preserving old value to restore later. It's not nice to try and sleep from splsoftclock. + Fix tick overflow buglet in checking timeout value. MFC after: 1 week
2002-07-08 17:42:47 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Remove ISP_SMPLOCK stuff- we're just using locking now. Correctly reintroduce loop_seen_once semantics- that is, if we've never seen good link, start bouncing commands with CAM_SEL_TIMEOUT. But we have to be careful to have let ourselves try (in isp_kthread) to check for loop up at least once. PR: 28992 MFC after: 1 week
2001-07-25 04:23:52 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* If this is past the first loop up or the loop is dead and if we'd frozen the simq, unfreeze it
* now so that CAM can start sending us commands.
*
* If the FC state isn't okay yet, they'll hit that in isp_start which will freeze the queue again
* or kill the commands, as appropriate.
Remove ISP_SMPLOCK stuff- we're just using locking now. Correctly reintroduce loop_seen_once semantics- that is, if we've never seen good link, start bouncing commands with CAM_SEL_TIMEOUT. But we have to be careful to have let ourselves try (in isp_kthread) to check for loop up at least once. PR: 28992 MFC after: 1 week
2001-07-25 04:23:52 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (FCPARAM(isp, chan)->loop_seen_once || fc->loop_dead) {
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
isp_unfreeze_loopdown(isp, chan);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d sleep time %d", __func__, chan, slp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
msleep(fc, &isp->isp_osinfo.lock, PRIBIO, "ispf", slp * hz);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
/*
* If slp is zero, we're waking up for the first time after
* things have been okay. In this case, we set a deferral state
* for all commands and delay hysteresis seconds before starting
* the FC state evaluation. This gives the loop/fabric a chance
* to settle.
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (slp == 0 && fc->hysteresis) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "%s: Chan %d sleep hysteresis ticks %d", __func__, chan, fc->hysteresis * hz);
I was getting panics in sleepq_add for the second sleep in isp_kthread. I don't know why- but it occurred to me in looking at the second sleep is that all I want is a pause- not an actual sleep. So do that instead. MFC after: 2 weeks
2010-06-05 00:55:21 +00:00
mtx_unlock(&isp->isp_osinfo.lock);
pause("ispt", fc->hysteresis * hz);
mtx_lock(&isp->isp_osinfo.lock);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
mtx_unlock(&isp->isp_osinfo.lock);
}
static void
isp_action(struct cam_sim *sim, union ccb *ccb)
{
int bus, tgt, ts, error, lim;
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
ispsoftc_t *isp;
-Wunused cleanup. Submitted by: Poul-Henning Kamp <phk@freebsd.org>
1998-10-15 23:46:33 +00:00
struct ccb_trans_settings *cts;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("isp_action\n"));
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
isp = (ispsoftc_t *)cam_sim_softc(sim);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
mtx_assert(&isp->isp_lock, MA_OWNED);
if (isp->isp_state != ISP_RUNSTATE && ccb->ccb_h.func_code == XPT_SCSI_IO) {
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
isp_init(isp);
if (isp->isp_state != ISP_INITSTATE) {
/*
* Lie. Say it was a selection timeout.
*/
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
ccb->ccb_h.status = CAM_SEL_TIMEOUT | CAM_DEV_QFRZN;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
xpt_freeze_devq(ccb->ccb_h.path, 1);
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
xpt_done(ccb);
return;
}
isp->isp_state = ISP_RUNSTATE;
}
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
isp_prt(isp, ISP_LOGDEBUG2, "isp_action code %x", ccb->ccb_h.func_code);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
ISP_PCMD(ccb) = NULL;
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
switch (ccb->ccb_h.func_code) {
case XPT_SCSI_IO: /* Execute the requested I/O operation */
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus = XS_CHANNEL(ccb);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
/*
* Do a couple of preliminary checks...
*/
if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0) {
if ((ccb->ccb_h.flags & CAM_CDB_PHYS) != 0) {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ccb->csio.req_map = NULL;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
#ifdef DIAGNOSTIC
if (ccb->ccb_h.target_id > (ISP_MAX_TARGETS(isp) - 1)) {
Make ISPCTL_PLOGX find a handle to log into the management server with- not hope for the best. Change some things which were gated off of 24XX to be gated off of 2K login support. Convert some isp_prt calls to xpt_print calls.
2006-12-05 07:50:23 +00:00
xpt_print(ccb->ccb_h.path, "invalid target\n");
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
ccb->ccb_h.status = CAM_PATH_INVALID;
} else if (ccb->ccb_h.target_lun > (ISP_MAX_LUNS(isp) - 1)) {
Make ISPCTL_PLOGX find a handle to log into the management server with- not hope for the best. Change some things which were gated off of 24XX to be gated off of 2K login support. Convert some isp_prt calls to xpt_print calls.
2006-12-05 07:50:23 +00:00
xpt_print(ccb->ccb_h.path, "invalid lun\n");
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
ccb->ccb_h.status = CAM_PATH_INVALID;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
if (ccb->ccb_h.status == CAM_PATH_INVALID) {
xpt_done(ccb);
break;
}
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
#endif
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
ccb->csio.scsi_status = SCSI_STATUS_OK;
if (isp_get_pcmd(isp, ccb)) {
isp_prt(isp, ISP_LOGWARN, "out of PCMDs");
cam_freeze_devq(ccb->ccb_h.path);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 250, 0);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
xpt_done(ccb);
break;
}
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
error = isp_start((XS_T *) ccb);
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
switch (error) {
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
case CMD_QUEUED:
ccb->ccb_h.status |= CAM_SIM_QUEUED;
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
if (ccb->ccb_h.timeout == CAM_TIME_INFINITY) {
break;
}
ts = ccb->ccb_h.timeout;
if (ts == CAM_TIME_DEFAULT) {
ts = 60*1000;
Add in a watchdog routine to catch cases where we've dropped the command. Apparently the f/w has finished the command, but somehow an interrupt is being lost. So, we just plain wedge when booting alphas. This is a general routine we've needed for a while.
2000-05-09 01:08:21 +00:00
}
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
ts = isp_mstohz(ts);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
callout_reset(&PISP_PCMD(ccb)->wdog, ts, isp_watchdog, ccb);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
break;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
case CMD_RQLATER:
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* We get this result for FC devices if the loop state isn't ready yet
* or if the device in question has gone zombie on us.
*
* If we've never seen Loop UP at all, we requeue this request and wait
* for the initial loop up delay to expire.
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
lim = ISP_FC_PC(isp, bus)->loop_down_limit;
if (FCPARAM(isp, bus)->loop_seen_once == 0 || ISP_FC_PC(isp, bus)->loop_down_time >= lim) {
if (FCPARAM(isp, bus)->loop_seen_once == 0) {
isp_prt(isp, ISP_LOGDEBUG0, "%d.%d loop not seen yet @ %lu", XS_TGT(ccb), XS_LUN(ccb), (unsigned long) time_uptime);
} else {
isp_prt(isp, ISP_LOGDEBUG0, "%d.%d downtime (%d) > lim (%d)", XS_TGT(ccb), XS_LUN(ccb), ISP_FC_PC(isp, bus)->loop_down_time, lim);
}
ccb->ccb_h.status = CAM_SEL_TIMEOUT|CAM_DEV_QFRZN;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
xpt_freeze_devq(ccb->ccb_h.path, 1);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
isp_free_pcmd(isp, ccb);
Remove ISP_SMPLOCK stuff- we're just using locking now. Correctly reintroduce loop_seen_once semantics- that is, if we've never seen good link, start bouncing commands with CAM_SEL_TIMEOUT. But we have to be careful to have let ourselves try (in isp_kthread) to check for loop up at least once. PR: 28992 MFC after: 1 week
2001-07-25 04:23:52 +00:00
xpt_done(ccb);
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGDEBUG0, "%d.%d retry later", XS_TGT(ccb), XS_LUN(ccb));
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
cam_freeze_devq(ccb->ccb_h.path);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ccb->ccb_h.status = CAM_REQUEUE_REQ;
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
isp_free_pcmd(isp, ccb);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_done(ccb);
break;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
case CMD_EAGAIN:
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
isp_free_pcmd(isp, ccb);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cam_freeze_devq(ccb->ccb_h.path);
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 100, 0);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ccb->ccb_h.status = CAM_REQUEUE_REQ;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_done(ccb);
break;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
case CMD_COMPLETE:
isp_done((struct ccb_scsiio *) ccb);
break;
default:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGERR, "What's this? 0x%x at %d in file %s", error, __LINE__, __FILE__);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ccb->ccb_h.status = CAM_REQUEUE_REQ;
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
isp_free_pcmd(isp, ccb);
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
xpt_done(ccb);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
break;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#ifdef ISP_TARGET_MODE
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_EN_LUN: /* Enable/Disable LUN as a target */
if (ccb->cel.enable) {
isp_enable_lun(isp, ccb);
} else {
isp_disable_lun(isp, ccb);
Remove condition variables and status associated with target mode enabling. Instead, go to an interrupt/polled model. Fix get_lun_statep so we don't panic if there are no wildcard luns enabled. MFC after: 6 days
2004-02-08 19:17:56 +00:00
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
break;
Accomodate old style XPT_IMMED_NOTIFY and XPT_NOTIFY_ACK so that we at least don't panic. We don't really support dual role mode (INITIATOR/TARGET) any more. We should but it's broken and will take a fair amount of effort to fix and correctly manage both initiator and target roles sharing the port database. So, for now, disallow it.
2009-09-15 02:25:03 +00:00
case XPT_IMMED_NOTIFY:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_IMMEDIATE_NOTIFY: /* Add Immediate Notify Resource */
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
case XPT_ACCEPT_TARGET_IO: /* Add Accept Target IO Resource */
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tstate_t *tptr = get_lun_statep(isp, XS_CHANNEL(ccb), ccb->ccb_h.target_lun);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
if (tptr == NULL) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tptr = get_lun_statep(isp, XS_CHANNEL(ccb), CAM_LUN_WILDCARD);
}
if (tptr == NULL) {
const char *str;
uint32_t tag;
if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
str = "XPT_IMMEDIATE_NOTIFY";
tag = ccb->cin1.seq_id;
} else {
tag = ccb->atio.tag_id;
str = "XPT_ACCEPT_TARGET_IO";
}
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "%s: [0x%x] no state pointer found for %s\n", __func__, tag, str);
dump_tstates(isp, XS_CHANNEL(ccb));
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ccb->ccb_h.spriv_field0 = 0;
ccb->ccb_h.spriv_ptr1 = isp;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
if (ccb->ccb_h.func_code == XPT_ACCEPT_TARGET_IO) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (ccb->atio.tag_id) {
Optimize isp(4) to reduce CPU usage, especially in target mode: - Remove two excessive and slow register reads from isp_intr(). Instead of rereading value every time, assume that registers contain what we have written there. - Avoid sequential search through 4096 array elements when looking for command tag. Use hash of lists to store active tags separately from free ones and so greatly speedup the searches. Reviewed by: mjacob
2013-10-17 20:19:15 +00:00
atio_private_data_t *atp = isp_find_atpd(isp, tptr, ccb->atio.tag_id);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (atp) {
isp_put_atpd(isp, tptr, atp);
}
}
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
tptr->atio_count++;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
SLIST_INSERT_HEAD(&tptr->atios, &ccb->ccb_h, sim_links.sle);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path, "Put FREE ATIO (tag id 0x%x), count now %d\n",
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ccb->atio.tag_id, tptr->atio_count);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->atio.tag_id = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else if (ccb->ccb_h.func_code == XPT_IMMEDIATE_NOTIFY) {
if (ccb->cin1.tag_id) {
inot_private_data_t *ntp = isp_find_ntpd(isp, tptr, ccb->cin1.tag_id, ccb->cin1.seq_id);
if (ntp) {
isp_put_ntpd(isp, tptr, ntp);
}
}
Checkpoint of work in progress in cleaning up target mode. It actually seems to work well in RELENG_4. However, 5.X locking foo means that I'll have to do some quick redesign. Add ioctl handlers for ISP_GETROLE and ISP_SETROLE ioctls.
2004-02-07 03:47:33 +00:00
tptr->inot_count++;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
SLIST_INSERT_HEAD(&tptr->inots, &ccb->ccb_h, sim_links.sle);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path, "Put FREE INOT, (seq id 0x%x) count now %d\n",
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ccb->cin1.seq_id, tptr->inot_count);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->cin1.seq_id = 0;
Accomodate old style XPT_IMMED_NOTIFY and XPT_NOTIFY_ACK so that we at least don't panic. We don't really support dual role mode (INITIATOR/TARGET) any more. We should but it's broken and will take a fair amount of effort to fix and correctly manage both initiator and target roles sharing the port database. So, for now, disallow it.
2009-09-15 02:25:03 +00:00
} else if (ccb->ccb_h.func_code == XPT_IMMED_NOTIFY) {
tptr->inot_count++;
SLIST_INSERT_HEAD(&tptr->inots, &ccb->ccb_h, sim_links.sle);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ISP_PATH_PRT(isp, ISP_LOGTDEBUG2, ccb->ccb_h.path, "Put FREE INOT, (seq id 0x%x) count now %d\n",
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ccb->cin1.seq_id, tptr->inot_count);
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
ccb->cin1.seq_id = 0;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
}
rls_lun_statep(isp, tptr);
ccb->ccb_h.status = CAM_REQ_INPROG;
break;
}
Accomodate old style XPT_IMMED_NOTIFY and XPT_NOTIFY_ACK so that we at least don't panic. We don't really support dual role mode (INITIATOR/TARGET) any more. We should but it's broken and will take a fair amount of effort to fix and correctly manage both initiator and target roles sharing the port database. So, for now, disallow it.
2009-09-15 02:25:03 +00:00
case XPT_NOTIFY_ACK:
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_NOTIFY_ACKNOWLEDGE: /* notify ack */
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
tstate_t *tptr;
inot_private_data_t *ntp;
/*
* XXX: Because we cannot guarantee that the path information in the notify acknowledge ccb
* XXX: matches that for the immediate notify, we have to *search* for the notify structure
*/
/*
* All the relevant path information is in the associated immediate notify
*/
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "%s: [0x%x] NOTIFY ACKNOWLEDGE for 0x%x seen\n", __func__, ccb->cna2.tag_id, ccb->cna2.seq_id);
ntp = get_ntp_from_tagdata(isp, ccb->cna2.tag_id, ccb->cna2.seq_id, &tptr);
if (ntp == NULL) {
ISP_PATH_PRT(isp, ISP_LOGWARN, ccb->ccb_h.path, "%s: [0x%x] XPT_NOTIFY_ACKNOWLEDGE of 0x%x cannot find ntp private data\n", __func__,
ccb->cna2.tag_id, ccb->cna2.seq_id);
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
xpt_done(ccb);
break;
}
if (isp_handle_platform_target_notify_ack(isp, &ntp->rd.nt)) {
rls_lun_statep(isp, tptr);
cam_freeze_devq(ccb->ccb_h.path);
cam_release_devq(ccb->ccb_h.path, RELSIM_RELEASE_AFTER_TIMEOUT, 0, 1000, 0);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
ccb->ccb_h.status &= ~CAM_STATUS_MASK;
ccb->ccb_h.status |= CAM_REQUEUE_REQ;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
isp_put_ntpd(isp, tptr, ntp);
rls_lun_statep(isp, tptr);
ccb->ccb_h.status = CAM_REQ_CMP;
ISP_PATH_PRT(isp, ISP_LOGTDEBUG0, ccb->ccb_h.path, "%s: [0x%x] calling xpt_done for tag 0x%x\n", __func__, ccb->cna2.tag_id, ccb->cna2.seq_id);
xpt_done(ccb);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_CONT_TARGET_IO:
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_target_start_ctio(isp, ccb, FROM_CAM);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#endif
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
case XPT_RESET_DEV: /* BDR the specified SCSI device */
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
bus = cam_sim_bus(xpt_path_sim(ccb->ccb_h.path));
tgt = ccb->ccb_h.target_id;
tgt |= (bus << 16);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
error = isp_control(isp, ISPCTL_RESET_DEV, bus, tgt);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
if (error) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
} else {
ccb->ccb_h.status = CAM_REQ_CMP;
}
xpt_done(ccb);
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_ABORT: /* Abort the specified CCB */
{
union ccb *accb = ccb->cab.abort_ccb;
switch (accb->ccb_h.func_code) {
#ifdef ISP_TARGET_MODE
case XPT_ACCEPT_TARGET_IO:
Fix few bugs in isp(4) target mode support: - in destroy_lun_state() assert hold == 1 instead of 0, as it should receive hold taken by the create_lun_state() or get_lun_statep() before; - fix hold count leak inside rls_lun_statep() that also fired above assert; - in destroy_lun_state() use SIM bus number instead of SIM path id for ISP_GET_PC_ADDR(), as it was before r196008; - make isp_disable_lun() to set status in CCB; - make isp_target_mark_aborted() set status into the proper CCB. Reviewed by: mjacob Sponsored by: iXsystems, inc. MFC after: 1 month
2011-12-13 09:58:05 +00:00
isp_target_mark_aborted(isp, ccb);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
#endif
case XPT_SCSI_IO:
error = isp_control(isp, ISPCTL_ABORT_CMD, ccb);
if (error) {
ccb->ccb_h.status = CAM_UA_ABORT;
Add back some CAM_NEW_TRAN code to make backporting to RELENG_6 easier.
2006-12-18 23:50:30 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ccb->ccb_h.status = CAM_REQ_CMP;
Add back some CAM_NEW_TRAN code to make backporting to RELENG_6 easier.
2006-12-18 23:50:30 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
Don't leak CCBs for every ABORT. Submitted by: Ken Merry MFC after: One week
2010-05-25 20:19:45 +00:00
/*
* This is not a queued CCB, so the caller expects it to be
* complete when control is returned.
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
#define IS_CURRENT_SETTINGS(c) (c->type == CTS_TYPE_CURRENT_SETTINGS)
case XPT_SET_TRAN_SETTINGS: /* Nexus Settings */
cts = &ccb->cts;
if (!IS_CURRENT_SETTINGS(cts)) {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
tgt = cts->ccb_h.target_id;
bus = cam_sim_bus(xpt_path_sim(cts->ccb_h.path));
if (IS_SCSI(isp)) {
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
sdparam *sdp = SDPARAM(isp, bus);
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
uint16_t *dptr;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
Fix XPT_GET_TRANSPORT_SETTINGS to zero validity and flags- this was causing us to not negotiate sync at all, or at random.
2006-12-03 07:22:15 +00:00
if (spi->valid == 0 && scsi->valid == 0) {
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
/*
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
* We always update (internally) from goal_flags
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
* so any request to change settings just gets
* vectored to that location.
*/
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
dptr = &sdp->isp_devparam[tgt].goal_flags;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
if ((spi->valid & CTS_SPI_VALID_DISC) != 0) {
if ((spi->flags & CTS_SPI_FLAGS_DISC_ENB) != 0)
*dptr |= DPARM_DISC;
else
*dptr &= ~DPARM_DISC;
}
if ((scsi->valid & CTS_SCSI_VALID_TQ) != 0) {
if ((scsi->flags & CTS_SCSI_FLAGS_TAG_ENB) != 0)
*dptr |= DPARM_TQING;
else
*dptr &= ~DPARM_TQING;
}
if ((spi->valid & CTS_SPI_VALID_BUS_WIDTH) != 0) {
if (spi->bus_width == MSG_EXT_WDTR_BUS_16_BIT)
*dptr |= DPARM_WIDE;
else
*dptr &= ~DPARM_WIDE;
}
/*
* XXX: FIX ME
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if ((spi->valid & CTS_SPI_VALID_SYNC_OFFSET) && (spi->valid & CTS_SPI_VALID_SYNC_RATE) && (spi->sync_period && spi->sync_offset)) {
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
*dptr |= DPARM_SYNC;
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
/*
* XXX: CHECK FOR LEGALITY
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdp->isp_devparam[tgt].goal_period = spi->sync_period;
sdp->isp_devparam[tgt].goal_offset = spi->sync_offset;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
} else {
*dptr &= ~DPARM_SYNC;
}
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGDEBUG0, "SET (%d.%d.%jx) to flags %x off %x per %x", bus, tgt, (uintmax_t)cts->ccb_h.target_lun, sdp->isp_devparam[tgt].goal_flags,
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdp->isp_devparam[tgt].goal_offset, sdp->isp_devparam[tgt].goal_period);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
sdp->isp_devparam[tgt].dev_update = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdp->update = 1;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_GET_TRAN_SETTINGS:
cts = &ccb->cts;
tgt = cts->ccb_h.target_id;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus = cam_sim_bus(xpt_path_sim(cts->ccb_h.path));
Add in isp_debug variable. It defaults to zero unless CAMDEBUG is defined where it defaults to one. Change simq width allocation to the max number of commands supported by the HBA after f/w fires up- not the constant MAXISPREQUEST value. Do some stylistic changes.
1999-10-17 18:50:47 +00:00
if (IS_FC(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fcparam *fcp = FCPARAM(isp, bus);
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_fc *fc = &cts->xport_specific.fc;
Fix XPT_GET_TRAN_SETTING for FC which has been broken for while so that it will figure out the correct target to handle index and be able to find things like WWPN, etc. MFC after: 2 weeks
2010-06-07 17:39:36 +00:00
unsigned int hdlidx;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_FC;
cts->transport_version = 0;
Find another spot where tagged command queueing got accidentally nuked.
2006-12-09 01:30:05 +00:00
scsi->valid = CTS_SCSI_VALID_TQ;
scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
fc->valid = CTS_FC_VALID_SPEED;
Export 4Gbps Fibre Channel link speed correctly with inquiry commands. Approved by: re (kensmith) MFC after: 3 days
2007-08-23 15:57:13 +00:00
fc->bitrate = 100000;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->bitrate *= fcp->isp_gbspeed;
Fix XPT_GET_TRAN_SETTING for FC which has been broken for while so that it will figure out the correct target to handle index and be able to find things like WWPN, etc. MFC after: 2 weeks
2010-06-07 17:39:36 +00:00
hdlidx = fcp->isp_dev_map[tgt] - 1;
if (hdlidx < MAX_FC_TARG) {
fcportdb_t *lp = &fcp->portdb[hdlidx];
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
fc->wwnn = lp->node_wwn;
fc->wwpn = lp->port_wwn;
fc->port = lp->portid;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc->valid |= CTS_FC_VALID_WWNN | CTS_FC_VALID_WWPN | CTS_FC_VALID_PORT;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
sdparam *sdp = SDPARAM(isp, bus);
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
uint16_t dval, pval, oval;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
if (IS_CURRENT_SETTINGS(cts)) {
When asked to get the current transfer settings go do a dev_refresh isp_update call to get a better chance at seeing whether a recent settings change has latched up.
1999-05-12 19:00:16 +00:00
sdp->isp_devparam[tgt].dev_refresh = 1;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdp->update = 1;
(void) isp_control(isp, ISPCTL_UPDATE_PARAMS, bus);
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
dval = sdp->isp_devparam[tgt].actv_flags;
oval = sdp->isp_devparam[tgt].actv_offset;
pval = sdp->isp_devparam[tgt].actv_period;
Add in 1080 LVD support and some basis also for the 1240. The port database printout is now enabled.
1999-03-25 22:52:45 +00:00
} else {
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
dval = sdp->isp_devparam[tgt].nvrm_flags;
oval = sdp->isp_devparam[tgt].nvrm_offset;
pval = sdp->isp_devparam[tgt].nvrm_period;
Add in 1080 LVD support and some basis also for the 1240. The port database printout is now enabled.
1999-03-25 22:52:45 +00:00
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI;
cts->transport_version = 2;
Fix XPT_GET_TRANSPORT_SETTINGS to zero validity and flags- this was causing us to not negotiate sync at all, or at random.
2006-12-03 07:22:15 +00:00
spi->valid = 0;
scsi->valid = 0;
spi->flags = 0;
scsi->flags = 0;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
if (dval & DPARM_DISC) {
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
}
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
if ((dval & DPARM_SYNC) && oval && pval) {
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
spi->sync_offset = oval;
spi->sync_period = pval;
Fix XPT_GET_TRANSPORT_SETTINGS to zero validity and flags- this was causing us to not negotiate sync at all, or at random.
2006-12-03 07:22:15 +00:00
} else {
spi->sync_offset = 0;
spi->sync_period = 0;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
}
Fix XPT_GET_TRANSPORT_SETTINGS to zero validity and flags- this was causing us to not negotiate sync at all, or at random.
2006-12-03 07:22:15 +00:00
spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
spi->valid |= CTS_SPI_VALID_SYNC_RATE;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
spi->valid |= CTS_SPI_VALID_BUS_WIDTH;
if (dval & DPARM_WIDE) {
spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
} else {
spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
}
if (cts->ccb_h.target_lun != CAM_LUN_WILDCARD) {
scsi->valid = CTS_SCSI_VALID_TQ;
Fix XPT_GET_TRANSPORT_SETTINGS to zero validity and flags- this was causing us to not negotiate sync at all, or at random.
2006-12-03 07:22:15 +00:00
if (dval & DPARM_TQING) {
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
}
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
spi->valid |= CTS_SPI_VALID_DISC;
}
Adjust various SCSI drivers to handle either a 32-bit or 64-bit lun_id_t, mostly by adjustments to debugging printf() format specifiers. For high numbered LUNs, also switch to printing them in hex as per SAM-5. MFC after: 2 weeks
2013-10-30 14:04:47 +00:00
isp_prt(isp, ISP_LOGDEBUG0, "GET %s (%d.%d.%jx) to flags %x off %x per %x", IS_CURRENT_SETTINGS(cts)? "ACTIVE" : "NVRAM",
bus, tgt, (uintmax_t)cts->ccb_h.target_lun, dval, oval, pval);
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
case XPT_CALC_GEOMETRY:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cam_calc_geometry(&ccb->ccg, 1);
xpt_done(ccb);
break;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_RESET_BUS: /* Reset the specified bus */
bus = cam_sim_bus(sim);
error = isp_control(isp, ISPCTL_RESET_BUS, bus);
if (error) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_done(ccb);
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (bootverbose) {
xpt_print(ccb->ccb_h.path, "reset bus on channel %d\n", bus);
}
if (IS_FC(isp)) {
xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, 0);
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, 0);
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
}
ccb->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_TERM_IO: /* Terminate the I/O process */
ccb->ccb_h.status = CAM_REQ_INVALID;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_done(ccb);
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case XPT_SET_SIM_KNOB: /* Set SIM knobs */
{
struct ccb_sim_knob *kp = &ccb->knob;
fcparam *fcp;
if (!IS_FC(isp)) {
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
bus = cam_sim_bus(xpt_path_sim(kp->ccb_h.path));
fcp = FCPARAM(isp, bus);
if (kp->xport_specific.fc.valid & KNOB_VALID_ADDRESS) {
fcp->isp_wwnn = ISP_FC_PC(isp, bus)->def_wwnn = kp->xport_specific.fc.wwnn;
fcp->isp_wwpn = ISP_FC_PC(isp, bus)->def_wwpn = kp->xport_specific.fc.wwpn;
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
isp_prt(isp, ISP_LOGALL, "Setting Channel %d wwns to 0x%jx 0x%jx", bus, fcp->isp_wwnn, fcp->isp_wwpn);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
ccb->ccb_h.status = CAM_REQ_CMP;
if (kp->xport_specific.fc.valid & KNOB_VALID_ROLE) {
int rchange = 0;
int newrole = 0;
switch (kp->xport_specific.fc.role) {
case KNOB_ROLE_NONE:
if (fcp->role != ISP_ROLE_NONE) {
rchange = 1;
newrole = ISP_ROLE_NONE;
}
break;
case KNOB_ROLE_TARGET:
if (fcp->role != ISP_ROLE_TARGET) {
rchange = 1;
newrole = ISP_ROLE_TARGET;
}
break;
case KNOB_ROLE_INITIATOR:
if (fcp->role != ISP_ROLE_INITIATOR) {
rchange = 1;
newrole = ISP_ROLE_INITIATOR;
}
break;
case KNOB_ROLE_BOTH:
Accomodate old style XPT_IMMED_NOTIFY and XPT_NOTIFY_ACK so that we at least don't panic. We don't really support dual role mode (INITIATOR/TARGET) any more. We should but it's broken and will take a fair amount of effort to fix and correctly manage both initiator and target roles sharing the port database. So, for now, disallow it.
2009-09-15 02:25:03 +00:00
#if 0
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (fcp->role != ISP_ROLE_BOTH) {
rchange = 1;
newrole = ISP_ROLE_BOTH;
}
Accomodate old style XPT_IMMED_NOTIFY and XPT_NOTIFY_ACK so that we at least don't panic. We don't really support dual role mode (INITIATOR/TARGET) any more. We should but it's broken and will take a fair amount of effort to fix and correctly manage both initiator and target roles sharing the port database. So, for now, disallow it.
2009-09-15 02:25:03 +00:00
#else
/*
* We don't really support dual role at present on FC cards.
*
* We should, but a bunch of things are currently broken,
* so don't allow it.
*/
isp_prt(isp, ISP_LOGERR, "cannot support dual role at present");
ccb->ccb_h.status = CAM_REQ_INVALID;
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
break;
}
if (rchange) {
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ISP_PATH_PRT(isp, ISP_LOGCONFIG, ccb->ccb_h.path, "changing role on from %d to %d\n", fcp->role, newrole);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
#ifdef ISP_TARGET_MODE
ISP_SET_PC(isp, bus, tm_enabled, 0);
ISP_SET_PC(isp, bus, tm_luns_enabled, 0);
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (isp_fc_change_role(isp, bus, newrole) != 0) {
ccb->ccb_h.status = CAM_REQ_CMP_ERR;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
xpt_done(ccb);
break;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
#ifdef ISP_TARGET_MODE
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (newrole == ISP_ROLE_TARGET || newrole == ISP_ROLE_BOTH) {
/*
* Give the new role a chance to complain and settle
*/
msleep(isp, &isp->isp_lock, PRIBIO, "taking a breather", 2);
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
ccb->ccb_h.status = isp_enable_deferred_luns(isp, bus);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
#endif
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Allow fibre channel 'bus resets' to go through. Handle Loop Down/Loop Up events by freezing/unfreezing the simq- nice to have such control at this level! Do bus resets in attach layer (non-CAM defined code).
1999-02-09 01:08:38 +00:00
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_done(ccb);
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Clean up and complete the incomplete deferred enable code. Make the default role NONE if target mode is selected. This allows ctl(8) to switch to/from target mode via knob settings. If we default to role 'none', this causes a reset of the 24XX f/w which then causes initiators to wake up and notice when we come online. Reviewed by: kdm MFC after: 2 weeks Sponsored by: Spectralogic
2012-06-01 23:29:48 +00:00
case XPT_GET_SIM_KNOB: /* Get SIM knobs */
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
{
struct ccb_sim_knob *kp = &ccb->knob;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_FC(isp)) {
fcparam *fcp;
bus = cam_sim_bus(xpt_path_sim(kp->ccb_h.path));
fcp = FCPARAM(isp, bus);
kp->xport_specific.fc.wwnn = fcp->isp_wwnn;
kp->xport_specific.fc.wwpn = fcp->isp_wwpn;
switch (fcp->role) {
case ISP_ROLE_NONE:
kp->xport_specific.fc.role = KNOB_ROLE_NONE;
break;
case ISP_ROLE_TARGET:
kp->xport_specific.fc.role = KNOB_ROLE_TARGET;
break;
case ISP_ROLE_INITIATOR:
kp->xport_specific.fc.role = KNOB_ROLE_INITIATOR;
break;
case ISP_ROLE_BOTH:
kp->xport_specific.fc.role = KNOB_ROLE_BOTH;
break;
}
kp->xport_specific.fc.valid = KNOB_VALID_ADDRESS | KNOB_VALID_ROLE;
ccb->ccb_h.status = CAM_REQ_CMP;
} else {
ccb->ccb_h.status = CAM_REQ_INVALID;
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
xpt_done(ccb);
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
case XPT_PATH_INQ: /* Path routing inquiry */
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#ifdef ISP_TARGET_MODE
Redo a lot of the target mode infrastructure to be cognizant of Dual Bus cards like the 1280 && the 12160. Cleanup isp_target_putback_atio. Make sure bus and correct tag ids and firmware handles get propagated as needed.
2001-04-04 21:58:29 +00:00
cpi->target_sprt = PIT_PROCESSOR | PIT_DISCONNECT | PIT_TERM_IO;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#else
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
cpi->target_sprt = 0;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#endif
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
cpi->hba_eng_cnt = 0;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
cpi->max_target = ISP_MAX_TARGETS(isp) - 1;
cpi->max_lun = ISP_MAX_LUNS(isp) - 1;
cpi->bus_id = cam_sim_bus(sim);
Export the maxio field in the CAM XPT_PATH_INQ CCB in the isp(4) driver. This tells consumers up the stack the maximum I/O size that the controller can handle. The I/O size is bounded by the number of scatter/gather segments the controller can handle and the page size. For an amd64 system, it works out to around 5MB. Reviewed by: mjacob MFC after: 3 days Sponsored by: Spectra Logic
2013-08-15 16:41:27 +00:00
if (isp->isp_osinfo.sixtyfourbit)
cpi->maxio = (ISP_NSEG64_MAX - 1) * PAGE_SIZE;
else
cpi->maxio = (ISP_NSEG_MAX - 1) * PAGE_SIZE;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus = cam_sim_bus(xpt_path_sim(cpi->ccb_h.path));
Add in 1080 LVD support and some basis also for the 1240. The port database printout is now enabled.
1999-03-25 22:52:45 +00:00
if (IS_FC(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fcparam *fcp = FCPARAM(isp, bus);
Flag isp(4) as supporting unmapped I/O; all necessary conversion actually already has been done as part of r246713. Reviewed by: mjacob
2013-06-04 11:05:57 +00:00
cpi->hba_misc = PIM_NOBUSRESET | PIM_UNMAPPED;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
/*
* Because our loop ID can shift from time to time,
* make our initiator ID out of range of our bus.
*/
cpi->initiator_id = cpi->max_target + 1;
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
/*
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* Set base transfer capabilities for Fibre Channel, for this HBA.
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
*/
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
if (IS_25XX(isp)) {
cpi->base_transfer_speed = 8000000;
} else if (IS_24XX(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cpi->base_transfer_speed = 4000000;
} else if (IS_23XX(isp)) {
cpi->base_transfer_speed = 2000000;
} else {
cpi->base_transfer_speed = 1000000;
}
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
cpi->hba_inquiry = PI_TAG_ABLE;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
cpi->transport = XPORT_FC;
Add back some CAM_NEW_TRAN code to make backporting to RELENG_6 easier.
2006-12-18 23:50:30 +00:00
cpi->transport_version = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
cpi->xport_specific.fc.wwnn = fcp->isp_wwnn;
cpi->xport_specific.fc.wwpn = fcp->isp_wwpn;
cpi->xport_specific.fc.port = fcp->isp_portid;
cpi->xport_specific.fc.bitrate = fcp->isp_gbspeed * 1000;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdparam *sdp = SDPARAM(isp, bus);
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
Flag isp(4) as supporting unmapped I/O; all necessary conversion actually already has been done as part of r246713. Reviewed by: mjacob
2013-06-04 11:05:57 +00:00
cpi->hba_misc = PIM_UNMAPPED;
A large set of changes to handle dual bus adapters.
1999-05-11 05:10:06 +00:00
cpi->initiator_id = sdp->isp_initiator_id;
Add a number of interrelated CAM feature enhancements and bug fixes. NOTE: These changes will require recompilation of any userland applications, like cdrecord, xmcd, etc., that use the CAM passthrough interface. A make world is recommended. camcontrol.[c8]: - We now support two new commands, "tags" and "negotiate". - The tags commands allows users to view the number of tagged openings for a device as well as a number of other related parameters, and it allows users to set tagged openings for a device. - The negotiate command allows users to enable and disable disconnection and tagged queueing, set sync rates, offsets and bus width. Note that not all of those features are available for all controllers. Only the adv, ahc, and ncr drivers fully support all of the features at this point. Some cards do not allow the setting of sync rates, offsets and the like, and some of the drivers don't have any facilities to do so. Some drivers, like the adw driver, only support enabling or disabling sync negotiation, but do not support setting sync rates. - new description in the camcontrol man page of how to format a disk - cleanup of the camcontrol inquiry command - add support in the 'devlist' command for skipping unconfigured devices if -v was not specified on the command line. - make use of the new base_transfer_speed in the path inquiry CCB. - fix CCB bzero cases cam_xpt.c, cam_sim.[ch], cam_ccb.h: - new flags on many CCB function codes to designate whether they're non-immediate, use a user-supplied CCB, and can only be passed from userland programs via the xpt device. Use these flags in the transport layer and pass driver to categorize CCBs. - new flag in the transport layer device matching code for device nodes that indicates whether a device is unconfigured - bump the CAM version from 0x10 to 0x11 - Change the CAM ioctls to use the version as their group code, so we can force users to recompile code even when the CCB size doesn't change. - add + fill in a new value in the path inquiry CCB, base_transfer_speed. Remove a corresponding field from the cam_sim structure, and add code to every SIM to set this field to the proper value. - Fix the set transfer settings code in the transport layer. scsi_cd.c: - make some variables volatile instead of just casting them in various places - fix a race condition in the changer code - attach unless we get a "logical unit not supported" error. This should fix all of the cases where people have devices that return weird errors when they don't have media in the drive. scsi_da.c: - attach unless we get a "logical unit not supported" error scsi_pass.c: - for immediate CCBs, just malloc a CCB to send the user request in. This gets rid of the 'held' count problem in camcontrol tags. scsi_pass.h: - change the CAM ioctls to use the CAM version as their group code. adv driver: - Allow changing the sync rate and offset separately. adw driver - Allow changing the sync rate and offset separately. aha driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. ahc driver: - Allow setting offset and sync rate separately bt driver: - Don't return CAM_REQ_CMP for SET_TRAN_SETTINGS CCBs. NCR driver: - Fix the ultra/ultra 2 negotiation bug - allow setting both the sync rate and offset separately Other HBA drivers: - Put code in to set the base_transfer_speed field for XPT_GET_TRAN_SETTINGS CCBs. Reviewed by: gibbs, mjacob (isp), imp (aha)
1999-05-06 20:16:39 +00:00
cpi->base_transfer_speed = 3300;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
cpi->transport = XPORT_SPI;
Add back some CAM_NEW_TRAN code to make backporting to RELENG_6 easier.
2006-12-18 23:50:30 +00:00
cpi->transport_version = 2;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
}
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
Update QLogic ISP support for CAM. Add preliminary target mode support. Submitted by: Matthew Jacob <mjacob@feral.com>
1998-09-15 08:42:56 +00:00
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "Qlogic", HBA_IDLEN);
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->ccb_h.status = CAM_REQ_CMP;
xpt_done(ccb);
break;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(ccb);
break;
}
}
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
#define ISPDDB (CAM_DEBUG_INFO|CAM_DEBUG_TRACE|CAM_DEBUG_CDB)
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
void
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_done(XS_T *sccb)
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
{
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
ispsoftc_t *isp = XS_ISP(sccb);
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
uint32_t status;
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
if (XS_NOERR(sccb))
XS_SETERR(sccb, CAM_REQ_CMP);
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if ((sccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP && (sccb->scsi_status != SCSI_STATUS_OK)) {
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
sccb->ccb_h.status &= ~CAM_STATUS_MASK;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if ((sccb->scsi_status == SCSI_STATUS_CHECK_COND) && (sccb->ccb_h.status & CAM_AUTOSNS_VALID) == 0) {
Clean up some debug printing. Find the correct lun when SCCLUN is defined. If we complete with a check condition but no sense data, say we had an AUTOSENSE failure.
2000-01-04 03:45:49 +00:00
sccb->ccb_h.status |= CAM_AUTOSENSE_FAIL;
} else {
sccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
}
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
}
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
sccb->ccb_h.status &= ~CAM_SIM_QUEUED;
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
status = sccb->ccb_h.status & CAM_STATUS_MASK;
if (status != CAM_REQ_CMP) {
if (status != CAM_SEL_TIMEOUT)
isp_prt(isp, ISP_LOGDEBUG0, "target %d lun %d CAM status 0x%x SCSI status 0x%x", XS_TGT(sccb), XS_LUN(sccb), sccb->ccb_h.status, sccb->scsi_status);
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
if ((sccb->ccb_h.status & CAM_DEV_QFRZN) == 0) {
sccb->ccb_h.status |= CAM_DEV_QFRZN;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
xpt_freeze_devq(sccb->ccb_h.path, 1);
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
}
}
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if ((CAM_DEBUGGED(sccb->ccb_h.path, ISPDDB)) && (sccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
xpt_print(sccb->ccb_h.path, "cam completion status 0x%x\n", sccb->ccb_h.status);
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
}
Add in the enabling of interrupts (to isp_attach). Clean up a busted comment. Check against firmware state- not loop state when enabling target mode. Other changes have to do with no longer enabling/disabling interrupts at will. Rearchitect command watchdog timeouts- First of all, set the timeout period for a command that has a timeout (in isp_action) to the period of time requested *plus* two seconds. We don't want the Qlogic firmware and the host system to race each other to report a dead command (the watchdog is there to catch dead and/or broken firmware). Next, make sure that the command being watched isn't done yet. If it's not done yet, check for INT_PENDING and call isp_intr- if that said it serviced an interrupt, check to see whether the command is now done (this is what the "IN WATCHDOG" private flag is for- if isp_intr completes the command, it won't call xpt_done on it because isp_watchdog is still looking at the command). If no interrupt was pending, or the command wasn't completed, check to see if we've set the private 'grace period' flag. If so, the command really *is* dead, so report it as dead and complete it with a CAM_CMD_TIMEOUT value. If the grace period flag wasn't set, set it and issue a SYNCHRONIZE_ALL Marker Request Queue entry and re-set the timeout for one second from now (see Revision 1.45 isp.c notes for more on this) to give the firmware a final chance to complete this command.
2000-06-27 19:31:02 +00:00
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if (callout_active(&PISP_PCMD(sccb)->wdog))
Most of these changes to isp are to allow for isp.ko unloading. We also revive loop down freezes. We also externaliz within isp isp_prt_endcmd so something outside the core module can print something about a command completing. Also some work in progress to assist in handling timed out commands better. Partially Sponsored by: Panasas Approved by: re (kib) MFC after: 1 month
2011-08-13 23:34:17 +00:00
callout_stop(&PISP_PCMD(sccb)->wdog);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_free_pcmd(isp, (union ccb *) sccb);
xpt_done((union ccb *) sccb);
make a real "done" func; clarify some LUN widths
1998-12-05 01:31:21 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
void
isp_async(ispsoftc_t *isp, ispasync_t cmd, ...)
{
int bus;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
static const char prom0[] = "Chan %d PortID 0x%06x handle 0x%x %s %s WWPN 0x%08x%08x";
static const char prom2[] = "Chan %d PortID 0x%06x handle 0x%x %s %s tgt %u WWPN 0x%08x%08x";
char buf[64];
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
char *msg = NULL;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
target_id_t tgt;
fcportdb_t *lp;
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
struct isp_fc *fc;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
struct cam_path *tmppath;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_list ap;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
Implement and use Fast Posting for both parallel && fibre. Redo a bit of the startup code. Implement a call to outer framework function so that asynchronous events can be handled (e.g., speed negotiation, target mode). Roll internal release tags.
1999-01-30 07:29:00 +00:00
switch (cmd) {
case ISPASYNC_NEW_TGT_PARAMS:
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
{
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
struct ccb_trans_settings_scsi *scsi;
struct ccb_trans_settings_spi *spi;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
int flags, tgt;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
sdparam *sdp;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
struct ccb_trans_settings cts;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
Remove bzero/bcopy vestiges. Be cognizant as to whether we're running 2KLogin f/w in target mode and do the appropriate loopid load based upon that.
2006-05-22 06:49:49 +00:00
memset(&cts, 0, sizeof (struct ccb_trans_settings));
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
tgt = va_arg(ap, int);
va_end(ap);
sdp = SDPARAM(isp, bus);
if (xpt_create_path(&tmppath, NULL, cam_sim_path(ISP_SPI_PC(isp, bus)->sim), tgt, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
isp_prt(isp, ISP_LOGWARN, "isp_async cannot make temp path for %d.%d", tgt, bus);
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
break;
}
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
flags = sdp->isp_devparam[tgt].actv_flags;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
cts.type = CTS_TYPE_CURRENT_SETTINGS;
cts.protocol = PROTO_SCSI;
cts.transport = XPORT_SPI;
scsi = &cts.proto_specific.scsi;
spi = &cts.xport_specific.spi;
if (flags & DPARM_TQING) {
scsi->valid |= CTS_SCSI_VALID_TQ;
scsi->flags |= CTS_SCSI_FLAGS_TAG_ENB;
}
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
if (flags & DPARM_DISC) {
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
spi->valid |= CTS_SPI_VALID_DISC;
spi->flags |= CTS_SPI_FLAGS_DISC_ENB;
}
spi->flags |= CTS_SPI_VALID_BUS_WIDTH;
if (flags & DPARM_WIDE) {
spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
} else {
spi->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
}
if (flags & DPARM_SYNC) {
spi->valid |= CTS_SPI_VALID_SYNC_RATE;
spi->valid |= CTS_SPI_VALID_SYNC_OFFSET;
Redo how we manage SCSI device settings- have a 3rd flags (nvram) that records either what's in NVRAM or what the safe defaults would be if we lack NVRAM. Then we rename cur_XXXX to actv_XXXX (these are the currently active settings) and the dev_XXX settings to goal_XXXX (these are the settings which we want cur_XXXX to converge to). This probably isn't entirely final as yet- but it's a lot closer to now being what it should be, including allowing camcontrol to actually set specific settings.
2001-07-30 01:00:21 +00:00
spi->sync_period = sdp->isp_devparam[tgt].actv_period;
spi->sync_offset = sdp->isp_devparam[tgt].actv_offset;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGDEBUG2, "NEW_TGT_PARAMS bus %d tgt %d period %x offset %x flags %x", bus, tgt, sdp->isp_devparam[tgt].actv_period, sdp->isp_devparam[tgt].actv_offset, flags);
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
xpt_setup_ccb(&cts.ccb_h, tmppath, 1);
xpt_async(AC_TRANSFER_NEG, tmppath, &cts);
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
xpt_free_path(tmppath);
Implement and use Fast Posting for both parallel && fibre. Redo a bit of the startup code. Implement a call to outer framework function so that asynchronous events can be handled (e.g., speed negotiation, target mode). Roll internal release tags.
1999-01-30 07:29:00 +00:00
break;
Clarify and cleanup some CAM queueing breakages.
1999-08-16 20:11:45 +00:00
}
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
case ISPASYNC_BUS_RESET:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
{
va_start(ap, cmd);
bus = va_arg(ap, int);
va_end(ap);
isp_prt(isp, ISP_LOGINFO, "SCSI bus reset on bus %d detected", bus);
if (IS_FC(isp)) {
xpt_async(AC_BUS_RESET, ISP_FC_PC(isp, bus)->path, NULL);
} else {
xpt_async(AC_BUS_RESET, ISP_SPI_PC(isp, bus)->path, NULL);
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
}
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
case ISPASYNC_LIP:
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (msg == NULL) {
msg = "LIP Received";
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/* FALLTHROUGH */
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
case ISPASYNC_LOOP_RESET:
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (msg == NULL) {
msg = "LOOP Reset";
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/* FALLTHROUGH */
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
case ISPASYNC_LOOP_DOWN:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
{
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (msg == NULL) {
msg = "LOOP Down";
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
va_end(ap);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
FCPARAM(isp, bus)->link_active = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
fc = ISP_FC_PC(isp, bus);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (cmd == ISPASYNC_LOOP_DOWN && fc->ready) {
/*
* We don't do any simq freezing if we are only in target mode
*/
Put gone device timer into a structure tag that can hold more than 32 seconds. Oops. Untangle some of the confusion about what role means when it's in the FCPARAM/SDPARAM or isp_fc/isp_spi structures. This fixed a problem about seeing targets appear if you've turned off autologin and find them, or rather don't, via camcontrol rescan. MFC after: 1 month
2010-03-17 02:48:14 +00:00
if (FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) {
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (fc->path) {
isp_freeze_loopdown(isp, bus, msg);
}
if (!callout_active(&fc->ldt)) {
callout_reset(&fc->ldt, fc->loop_down_limit * hz, isp_ldt, fc);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Starting Loop Down Timer @ %lu", (unsigned long) time_uptime);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGINFO, "Chan %d: %s", bus, msg);
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
case ISPASYNC_LOOP_UP:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
va_end(ap);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc = ISP_FC_PC(isp, bus);
Spring MegaChange #1. ---- Make a device for each ISP- really usable only with devfs and add an ioctl entry point (this can be used to (re)set debug levels, reset the HBA, rescan the fabric, issue lips, etc). ---- Add in a kernel thread for Fibre Channel cards. The purpose of this thread is to be woken up to clean up after Fibre Channel events block things. Basically, any FC event that casts doubt on the location or identify of FC devices blocks the queues. When, and if, we get the PORT DATABASE CHANGED or NAME SERVER DATABASE CHANGED async event, we activate the kthread which will then, in full thread context, re-evaluate the local loop and/or the fabric. When it's satisfied that things are stable, it can then release the blocked queues and let commands flow again. The prior mechanism was a lazy evaluation. That is, the next command to come down the pipe after change events would pay the full price for re-evaluation. And if this was done off of a softcall, it really could hang up the system. These changes brings the FreeBSD port more in line with the Solaris, Linux and NetBSD ports. It also, more importantly, gets us being more proactive about topology changes which could then be reflected upwards to CAM so that the periph driver can be informed sooner rather than later when things arrive or depart. --- Add in the (correct) usage of locking macros- we now have lock transition macros which allow us to transition from holding the CAM lock (Giant) and grabbing the softc lock and vice versa. Switch over to having this HBA do real locking. Some folks claim this won't be a win. They're right. But you have to start somewhere, and this will begin to teach us how to DTRT for HBAs, etc. -- Start putting in prototype 2300 support. Add back in LIP and Loop Reset as async events that each platform will handle. Add in another int_bogus instrumentation point. Do some more substantial target mode cleanups. MFC after: 8 weeks
2001-05-28 21:20:43 +00:00
/*
* Now we just note that Loop has come up. We don't
* actually do anything because we're waiting for a
* Change Notify before activating the FC cleanup
* thread to look at the state of the loop again.
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
FCPARAM(isp, bus)->link_active = 1;
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc->loop_dead = 0;
fc->loop_down_time = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGINFO, "Chan %d Loop UP", bus);
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
break;
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
case ISPASYNC_DEV_ARRIVED:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc = ISP_FC_PC(isp, bus);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
lp->announced = 0;
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
lp->gone_timer = 0;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
if ((FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) && (lp->prli_word3 & PRLI_WD3_TARGET_FUNCTION)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int dbidx = lp - FCPARAM(isp, bus)->portdb;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
int i;
for (i = 0; i < MAX_FC_TARG; i++) {
if (i >= FL_ID && i <= SNS_ID) {
continue;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (FCPARAM(isp, bus)->isp_dev_map[i] == 0) {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
break;
}
}
if (i < MAX_FC_TARG) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
FCPARAM(isp, bus)->isp_dev_map[i] = dbidx + 1;
lp->dev_map_idx = i + 1;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
} else {
isp_prt(isp, ISP_LOGWARN, "out of target ids");
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_dump_portdb(isp, bus);
}
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lp->dev_map_idx) {
tgt = lp->dev_map_idx - 1;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom2, bus, lp->portid, lp->handle, buf, "arrived at", tgt, (uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_make_here(isp, bus, tgt);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom0, bus, lp->portid, lp->handle, buf, "arrived", (uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
break;
case ISPASYNC_DEV_CHANGED:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc = ISP_FC_PC(isp, bus);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
lp->announced = 0;
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
lp->gone_timer = 0;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (isp_change_is_bad) {
lp->state = FC_PORTDB_STATE_NIL;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lp->dev_map_idx) {
tgt = lp->dev_map_idx - 1;
FCPARAM(isp, bus)->isp_dev_map[tgt] = 0;
lp->dev_map_idx = 0;
isp_prt(isp, ISP_LOGCONFIG, prom3, bus, lp->portid, tgt, "change is bad");
isp_make_gone(isp, bus, tgt);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
isp_prt(isp, ISP_LOGCONFIG, prom0, bus, lp->portid, lp->handle, buf, "changed and departed",
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
(uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
lp->portid = lp->new_portid;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
lp->prli_word3 = lp->new_prli_word3;
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lp->dev_map_idx) {
int t = lp->dev_map_idx - 1;
FCPARAM(isp, bus)->isp_dev_map[t] = (lp - FCPARAM(isp, bus)->portdb) + 1;
tgt = lp->dev_map_idx - 1;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom2, bus, lp->portid, lp->handle, buf, "changed at", tgt,
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
(uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom0, bus, lp->portid, lp->handle, buf, "changed", (uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
break;
case ISPASYNC_DEV_STAYED:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (lp->dev_map_idx) {
tgt = lp->dev_map_idx - 1;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom2, bus, lp->portid, lp->handle, buf, "stayed at", tgt,
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
(uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom0, bus, lp->portid, lp->handle, buf, "stayed",
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
(uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
break;
case ISPASYNC_DEV_GONE:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
va_start(ap, cmd);
bus = va_arg(ap, int);
lp = va_arg(ap, fcportdb_t *);
va_end(ap);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc = ISP_FC_PC(isp, bus);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* If this has a virtual target and we haven't marked it
* that we're going to have isp_gdt tell the OS it's gone,
* set the isp_gdt timer running on it.
*
* If it isn't marked that isp_gdt is going to get rid of it,
* announce that it's gone.
Put gone device timer into a structure tag that can hold more than 32 seconds. Oops. Untangle some of the confusion about what role means when it's in the FCPARAM/SDPARAM or isp_fc/isp_spi structures. This fixed a problem about seeing targets appear if you've turned off autologin and find them, or rather don't, via camcontrol rescan. MFC after: 1 month
2010-03-17 02:48:14 +00:00
*
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
*/
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_gen_role_str(buf, sizeof (buf), lp->prli_word3);
if (lp->dev_map_idx && lp->announced == 0) {
lp->announced = 1;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
lp->state = FC_PORTDB_STATE_ZOMBIE;
Whap. Hook up some wires that were forgotten a few months ago and restore the zombie device timeout code and the loop down time code and the fabric hysteresis code. MFC after: 1 week Sponsored By: Panasas
2010-05-15 20:26:10 +00:00
lp->gone_timer = ISP_FC_PC(isp, bus)->gone_device_time;
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (fc->ready && !callout_active(&fc->gdt)) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Chan %d Starting Gone Device Timer with %u seconds time now %lu", bus, lp->gone_timer, (unsigned long)time_uptime);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
callout_reset(&fc->gdt, hz, isp_gdt, fc);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
tgt = lp->dev_map_idx - 1;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOGCONFIG, prom2, bus, lp->portid, lp->handle, buf, "gone zombie at", tgt, (uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
} else if (lp->announced == 0) {
isp_prt(isp, ISP_LOGCONFIG, prom0, bus, lp->portid, lp->handle, buf, "departed", (uint32_t) (lp->port_wwn >> 32), (uint32_t) lp->port_wwn);
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
}
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
break;
case ISPASYNC_CHANGE_NOTIFY:
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
{
char *msg;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int evt, nphdl, nlstate, reason;
va_start(ap, cmd);
bus = va_arg(ap, int);
evt = va_arg(ap, int);
if (IS_24XX(isp) && evt == ISPASYNC_CHANGE_PDB) {
nphdl = va_arg(ap, int);
nlstate = va_arg(ap, int);
reason = va_arg(ap, int);
} else {
nphdl = NIL_HANDLE;
nlstate = reason = 0;
}
va_end(ap);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
fc = ISP_FC_PC(isp, bus);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (evt == ISPASYNC_CHANGE_PDB) {
msg = "Chan %d Port Database Changed";
} else if (evt == ISPASYNC_CHANGE_SNS) {
msg = "Chan %d Name Server Database Changed";
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
msg = "Chan %d Other Change Notify";
Follow the ISPASYNC_PDB_CHANGED -> ISPASYNC_LOGGED_INOUT change. Also, ISPASYNC_NOTIFY_CHANGE now is for both local loop && fabric changes.
2001-01-09 02:47:15 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
/*
* If the loop down timer is running, cancel it.
*/
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
if (fc->ready && callout_active(&fc->ldt)) {
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_prt(isp, ISP_LOG_SANCFG|ISP_LOGDEBUG0, "Stopping Loop Down Timer @ %lu", (unsigned long) time_uptime);
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
callout_stop(&fc->ldt);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGINFO, msg, bus);
Put gone device timer into a structure tag that can hold more than 32 seconds. Oops. Untangle some of the confusion about what role means when it's in the FCPARAM/SDPARAM or isp_fc/isp_spi structures. This fixed a problem about seeing targets appear if you've turned off autologin and find them, or rather don't, via camcontrol rescan. MFC after: 1 month
2010-03-17 02:48:14 +00:00
if (FCPARAM(isp, bus)->role & ISP_ROLE_INITIATOR) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_freeze_loopdown(isp, bus, msg);
}
Fix cases where we've managed to get a Loop UP event prior to initializing the loop down counter, as well as other things. This was brought to my attention with a different fix, more for RELENG_7- this one covers the multiple channel case. PR: 140438 MFC after: 1 month
2009-12-04 03:34:12 +00:00
wakeup(fc);
A wad of changes- prepping for 1080/1240 support (which caused a massive thwank in register layout goop). A different mboxcmd approach. Some PDB change infrastructure. Some better management of loopdown/loopup events (keep them distinct from resource starvation for simq freeze/unfreeze actions).
1999-03-17 05:04:39 +00:00
break;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
#ifdef ISP_TARGET_MODE
First of several commits as this driver is dusted off and maybe brought up to date. Principle changes for this reelase is to support 2K Port Login firmware. This allows us to support the 2322 (and 2422 4Gb) cards which only come with the 2K Port Login firmware. The 2322 should now work- but we don't have firmware sets for it in ispfw (as the change to load 2K Port Login f/w hasn't been made- that f/w is so big it has to be loaded in more than one chunk). Other changes are the beginnings of cleaning up some long standing target mode issues. The next changes here will incorporate a lot of bug fixes from others. Finally, some copyright cleanup and attempts to make the parts of the driver that are FreeBSD specific start conforming more to FreeBSD style. MFC after: 1 month
2006-01-23 06:23:37 +00:00
case ISPASYNC_TARGET_NOTIFY:
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
{
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_notify_t *notify;
va_start(ap, cmd);
notify = va_arg(ap, isp_notify_t *);
va_end(ap);
switch (notify->nt_ncode) {
case NT_ABORT_TASK:
case NT_ABORT_TASK_SET:
case NT_CLEAR_ACA:
case NT_CLEAR_TASK_SET:
case NT_LUN_RESET:
case NT_TARGET_RESET:
/*
* These are task management functions.
*/
isp_handle_platform_target_tmf(isp, notify);
break;
case NT_BUS_RESET:
case NT_LIP_RESET:
case NT_LINK_UP:
case NT_LINK_DOWN:
/*
* No action need be taken here.
*/
break;
case NT_HBA_RESET:
isp_del_all_wwn_entries(isp, ISP_NOCHAN);
break;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
case NT_GLOBAL_LOGOUT:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case NT_LOGOUT:
/*
* This is device arrival/departure notification
*/
isp_handle_platform_target_notify_ack(isp, notify);
break;
case NT_ARRIVED:
{
struct ac_contract ac;
struct ac_device_changed *fc;
ac.contract_number = AC_CONTRACT_DEV_CHG;
fc = (struct ac_device_changed *) ac.contract_data;
fc->wwpn = notify->nt_wwn;
fc->port = notify->nt_sid;
fc->target = notify->nt_nphdl;
fc->arrived = 1;
xpt_async(AC_CONTRACT, ISP_FC_PC(isp, notify->nt_channel)->path, &ac);
break;
}
case NT_DEPARTED:
{
struct ac_contract ac;
struct ac_device_changed *fc;
ac.contract_number = AC_CONTRACT_DEV_CHG;
fc = (struct ac_device_changed *) ac.contract_data;
fc->wwpn = notify->nt_wwn;
fc->port = notify->nt_sid;
fc->target = notify->nt_nphdl;
fc->arrived = 0;
xpt_async(AC_CONTRACT, ISP_FC_PC(isp, notify->nt_channel)->path, &ac);
break;
}
default:
isp_prt(isp, ISP_LOGALL, "target notify code 0x%x", notify->nt_ncode);
isp_handle_platform_target_notify_ack(isp, notify);
break;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
case ISPASYNC_TARGET_NOTIFY_ACK:
{
void *inot;
va_start(ap, cmd);
inot = va_arg(ap, void *);
va_end(ap);
if (isp_notify_ack(isp, inot)) {
isp_tna_t *tp = malloc(sizeof (*tp), M_DEVBUF, M_NOWAIT);
if (tp) {
tp->isp = isp;
if (inot) {
memcpy(tp->data, inot, sizeof (tp->data));
tp->not = tp->data;
} else {
tp->not = NULL;
}
(void) timeout(isp_refire_notify_ack, tp, 5);
} else {
isp_prt(isp, ISP_LOGERR, "you lose- cannot allocate a notify refire");
}
}
break;
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
case ISPASYNC_TARGET_ACTION:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
{
isphdr_t *hp;
va_start(ap, cmd);
hp = va_arg(ap, isphdr_t *);
va_end(ap);
switch (hp->rqs_entry_type) {
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
default:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGWARN, "%s: unhandled target action 0x%x", __func__, hp->rqs_entry_type);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
case RQSTYPE_NOTIFY:
if (IS_SCSI(isp)) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_handle_platform_notify_scsi(isp, (in_entry_t *) hp);
} else if (IS_24XX(isp)) {
isp_handle_platform_notify_24xx(isp, (in_fcentry_24xx_t *) hp);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_handle_platform_notify_fc(isp, (in_fcentry_t *) hp);
Add support for ISP_FC_GETHINFO, which returns current connection topology, speed, loopid, WWPN/WWNN, etc. Beef up target mode. Add isp_handle_platform_notify_scsi and isp_handle_platform_notify_fc platform handlers to handle immediate notifies (isp_handle_platform_notify_scsi is still stubbed out). In implementation of isp_handle_platform_notify_fc, for IN_ABORT_TASK, peel off a pending XPT_IMMED_NOTIFY and call xpt_done on it and hope that somebody upstream is listening. Make sure on final CTIO2s that we set residual correctly. These are absolutely crucial. Make sure we set relative offset for each CTIO2 based upon bytes we've already xferred. This is what the private adjunct datat to the original ATIO is. Note state of command so we can figure out where to find it if we get an ABORT from the firmware. Make sure we *always* set CAM_TAG_ACTION_VALID for ATIO2s. Make sure we keep track of the original lun. If se sent status (or we're otherwise done with the command), don't forget to free the adjunct structure.
2002-06-16 05:08:02 +00:00
}
break;
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
case RQSTYPE_ATIO:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
if (IS_24XX(isp)) {
isp_handle_platform_atio7(isp, (at7_entry_t *) hp);
} else {
isp_handle_platform_atio(isp, (at_entry_t *) hp);
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
case RQSTYPE_ATIO2:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_handle_platform_atio2(isp, (at2_entry_t *) hp);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
case RQSTYPE_CTIO7:
Add missing case for RQSTYPE_CTIO3- neede for 64 bit target mode.
2006-05-22 07:07:30 +00:00
case RQSTYPE_CTIO3:
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
case RQSTYPE_CTIO2:
case RQSTYPE_CTIO:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_handle_platform_ctio(isp, hp);
break;
case RQSTYPE_ABTS_RCVD:
{
abts_t *abts = (abts_t *)hp;
isp_notify_t notify, *nt = &notify;
tstate_t *tptr;
fcportdb_t *lp;
uint16_t chan;
uint32_t sid, did;
did = (abts->abts_did_hi << 16) | abts->abts_did_lo;
sid = (abts->abts_sid_hi << 16) | abts->abts_sid_lo;
ISP_MEMZERO(nt, sizeof (isp_notify_t));
nt->nt_hba = isp;
nt->nt_did = did;
nt->nt_nphdl = abts->abts_nphdl;
nt->nt_sid = sid;
isp_find_chan_by_did(isp, did, &chan);
if (chan == ISP_NOCHAN) {
nt->nt_tgt = TGT_ANY;
} else {
nt->nt_tgt = FCPARAM(isp, chan)->isp_wwpn;
if (isp_find_pdb_by_loopid(isp, chan, abts->abts_nphdl, &lp)) {
nt->nt_wwn = lp->port_wwn;
} else {
nt->nt_wwn = INI_ANY;
}
}
/*
* Try hard to find the lun for this command.
*/
tptr = get_lun_statep_from_tag(isp, chan, abts->abts_rxid_task);
if (tptr) {
nt->nt_lun = xpt_path_lun_id(tptr->owner);
rls_lun_statep(isp, tptr);
} else {
nt->nt_lun = LUN_ANY;
}
nt->nt_need_ack = 1;
nt->nt_tagval = abts->abts_rxid_task;
nt->nt_tagval |= (((uint64_t) abts->abts_rxid_abts) << 32);
if (abts->abts_rxid_task == ISP24XX_NO_TASK) {
isp_prt(isp, ISP_LOGTINFO, "[0x%x] ABTS from N-Port handle 0x%x Port 0x%06x has no task id (rx_id 0x%04x ox_id 0x%04x)",
abts->abts_rxid_abts, abts->abts_nphdl, sid, abts->abts_rx_id, abts->abts_ox_id);
} else {
isp_prt(isp, ISP_LOGTINFO, "[0x%x] ABTS from N-Port handle 0x%x Port 0x%06x for task 0x%x (rx_id 0x%04x ox_id 0x%04x)",
abts->abts_rxid_abts, abts->abts_nphdl, sid, abts->abts_rxid_task, abts->abts_rx_id, abts->abts_ox_id);
}
nt->nt_channel = chan;
nt->nt_ncode = NT_ABORT_TASK;
nt->nt_lreserved = hp;
isp_handle_platform_target_tmf(isp, nt);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
case RQSTYPE_ENABLE_LUN:
case RQSTYPE_MODIFY_LUN:
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_ledone(isp, (lun_entry_t *) hp);
Make a static chain of isp softcs- gdb usage becomes a lot easier. Add in a very large amount of target mode support code- this is just a first pass at this. It's a difficult thing because some of the code can be in platform independent areas (see isp_target.?) but a lot has to be in platform dependent areas because of not only the tight coupling of received commands/events and the specific OS subsystem but because the platform independent code has (deliberately) no event/wait mechanisms.
2000-01-03 23:55:30 +00:00
break;
}
break;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
Remove all pre-CAM code. Fix breakage for SCCLUN when it is in fact ISP2100_SCCLUN. Make changes for how ISPASYNC_PDB_CHANGE_COMPLETE is now ISPASYNC_PDB_CHANGED. Add in ISPASYNC_FABRIC_DEV case.
1999-07-02 23:12:58 +00:00
#endif
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
case ISPASYNC_FW_CRASH:
{
a) clean up some declaration stuff (i.e., make more modern with respect to getting rid u_int for uint and so on). b) Turn back on 64 bit DAC support. Cheeze it a bit in that we have two DMA callback functions- one when we have bus_addr_t > 4 bits in width and the other which should be normal. Even Cheezier in that we turn off setting up DMA maps to be BUS_SPACE_MAXADDR if we're in ISP_TARGET_MODE. More work on this in a week or so. c) Tested under amd64 and 1MB DFLTPHYS, sparc64, i386 (PAE, but insufficient memory to really test > 4GB). LINT check under amd64. MFC after: 1 month
2006-02-15 00:31:48 +00:00
uint16_t mbox1, mbox6;
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
mbox1 = ISP_READ(isp, OUTMAILBOX1);
if (IS_DUALBUS(isp)) {
mbox6 = ISP_READ(isp, OUTMAILBOX6);
} else {
mbox6 = 0;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGERR, "Internal Firmware Error on bus %d @ RISC Address 0x%x", mbox6, mbox1);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
mbox1 = isp->isp_osinfo.mbox_sleep_ok;
isp->isp_osinfo.mbox_sleep_ok = 0;
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_reinit(isp, 1);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
isp->isp_osinfo.mbox_sleep_ok = mbox1;
isp_async(isp, ISPASYNC_FW_RESTARTED, NULL);
Add CAM_NEW_TRAN_CODE support. Use correct CAMLOCK_2_ISPLOCK macros. For fibre channel, start going for the gusto and using AC_FOUND_DEVICE and AC_LOST_DEVICE calls to xpt_async when devices appear and disappear as the loop or fabric changes. ISPASYNC_FW_CRASH is the async event code where the platform layer deals with a firmware crash.
2001-07-04 18:54:29 +00:00
break;
}
Implement and use Fast Posting for both parallel && fibre. Redo a bit of the startup code. Implement a call to outer framework function so that asynchronous events can be handled (e.g., speed negotiation, target mode). Roll internal release tags.
1999-01-30 07:29:00 +00:00
default:
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
isp_prt(isp, ISP_LOGERR, "unknown isp_async event %d", cmd);
Implement and use Fast Posting for both parallel && fibre. Redo a bit of the startup code. Implement a call to outer framework function so that asynchronous events can be handled (e.g., speed negotiation, target mode). Roll internal release tags.
1999-01-30 07:29:00 +00:00
break;
}
}
clarify headers;move uninit to outer layer;remove watchdog
1998-12-28 19:22:27 +00:00
Remove all pre-CAM code. Fix breakage for SCCLUN when it is in fact ISP2100_SCCLUN. Make changes for how ISPASYNC_PDB_CHANGE_COMPLETE is now ISPASYNC_PDB_CHANGED. Add in ISPASYNC_FABRIC_DEV case.
1999-07-02 23:12:58 +00:00
clarify headers;move uninit to outer layer;remove watchdog
1998-12-28 19:22:27 +00:00
/*
* Locks are held before coming here.
*/
void
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
isp_uninit(ispsoftc_t *isp)
clarify headers;move uninit to outer layer;remove watchdog
1998-12-28 19:22:27 +00:00
{
Add 4Gb (24XX) support and lay the foundation for a lot of new stuff.
2006-11-02 03:21:32 +00:00
if (IS_24XX(isp)) {
ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_RESET);
} else {
ISP_WRITE(isp, HCCR, HCCR_CMD_RESET);
}
ISP_DISABLE_INTS(isp);
clarify headers;move uninit to outer layer;remove watchdog
1998-12-28 19:22:27 +00:00
}
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
/*
* When we want to get the 'default' WWNs (when lacking NVRAM), we pick them
* up from our platform default (defww{p|n}n) and morph them based upon
* channel.
*
* When we want to get the 'active' WWNs, we get NVRAM WWNs and then morph them
* based upon channel.
*/
uint64_t
isp_default_wwn(ispsoftc_t * isp, int chan, int isactive, int iswwnn)
{
uint64_t seed;
struct isp_fc *fc = ISP_FC_PC(isp, chan);
/*
* If we're asking for a active WWN, the default overrides get
* returned, otherwise the NVRAM value is picked.
*
* If we're asking for a default WWN, we just pick the default override.
*/
if (isactive) {
seed = iswwnn ? fc->def_wwnn : fc->def_wwpn;
if (seed) {
return (seed);
}
seed = iswwnn ? FCPARAM(isp, chan)->isp_wwnn_nvram : FCPARAM(isp, chan)->isp_wwpn_nvram;
Have at least *some* default WWN to fall back on, otherwise Sun branded FC cards won't configure. Reviewed by: Ken, Scott Approved by: re
2009-08-13 01:17:26 +00:00
if (seed) {
return (seed);
}
return (0x400000007F000009ull);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
} else {
seed = iswwnn ? fc->def_wwnn : fc->def_wwpn;
}
/*
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* For channel zero just return what we have. For either ACTIVE or
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* DEFAULT cases, we depend on default override of NVRAM values for
* channel zero.
*/
if (chan == 0) {
return (seed);
}
/*
* For other channels, we are doing one of three things:
*
* 1. If what we have now is non-zero, return it. Otherwise we morph
* values from channel 0. 2. If we're here for a WWPN we synthesize
* it if Channel 0's wwpn has a type 2 NAA. 3. If we're here for a
* WWNN we synthesize it if Channel 0's wwnn has a type 2 NAA.
*/
if (seed) {
return (seed);
}
if (isactive) {
seed = iswwnn ? FCPARAM(isp, 0)->isp_wwnn_nvram : FCPARAM(isp, 0)->isp_wwpn_nvram;
} else {
seed = iswwnn ? ISP_FC_PC(isp, 0)->def_wwnn : ISP_FC_PC(isp, 0)->def_wwpn;
}
if (((seed >> 60) & 0xf) == 2) {
/*
* The type 2 NAA fields for QLogic cards appear be laid out
* thusly:
*
* bits 63..60 NAA == 2 bits 59..57 unused/zero bit 56
* port (1) or node (0) WWN distinguishor bit 48
* physical port on dual-port chips (23XX/24XX)
*
* This is somewhat nutty, particularly since bit 48 is
Fix typos. PR: bin/148894 Submitted by: olgeni
2010-11-09 10:59:09 +00:00
* irrelevant as they assign separate serial numbers to
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
* different physical ports anyway.
*
* We'll stick our channel number plus one first into bits
* 57..59 and thence into bits 52..55 which allows for 8 bits
* of channel which is comfortably more than our maximum
* (126) now.
*/
seed &= ~0x0FF0000000000000ULL;
if (iswwnn == 0) {
seed |= ((uint64_t) (chan + 1) & 0xf) << 56;
seed |= ((uint64_t) ((chan + 1) >> 4) & 0xf) << 52;
}
} else {
seed = 0;
}
return (seed);
}
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
void
Some more gratuitous format and name changes. Pull in some target mode changes from a private branch. Pull in some more RELENG_4 compilation changes. A lot of lines changed, but not much content change yet.
2006-04-21 18:30:01 +00:00
isp_prt(ispsoftc_t *isp, int level, const char *fmt, ...)
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
{
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
int loc;
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
char lbuf[200];
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
va_list ap;
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
return;
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
snprintf(lbuf, sizeof (lbuf), "%s: ", device_get_nameunit(isp->isp_dev));
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
loc = strlen(lbuf);
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
va_start(ap, fmt);
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
vsnprintf(&lbuf[loc], sizeof (lbuf) - loc - 1, fmt, ap);
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
va_end(ap);
Fixes zombie device and loop down timers so that they work more than once. Use taskqueues to do the actual work. Fix an offset line. Fix isp_prt so that prints from just one buffer, which makes it appear cleanly cleanly in logs on SMP systems. Approved by: re (kib) MFC after: 1 month
2011-08-12 19:51:28 +00:00
printf("%s\n", lbuf);
Core version 2.0 rewrite. In this file we replace isp_tdebug with isp_prt calls. We now use an argument to the ISPCTL_FCLINK_TEST call. We change all IDPRINTF macros to isp_prt calls. We add the isp_prt function here.
2000-08-01 06:31:44 +00:00
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
Clean up some printing stuff so that we can have a bit finer control on debug output. Add a new platform function requirement to allow for printing based upon the ITL nexus instead of the isp unit plus channel, target and lun. This allows some printouts and error messages from the core code to appear in the same format as the platform's subsystem (in FreeBSD's case, CAM path). MFC after: 1 week
2010-03-26 15:13:31 +00:00
void
isp_xs_prt(ispsoftc_t *isp, XS_T *xs, int level, const char *fmt, ...)
{
va_list ap;
if (level != ISP_LOGALL && (level & isp->isp_dblev) == 0) {
return;
}
xpt_print_path(xs->ccb_h.path);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
uint64_t
isp_nanotime_sub(struct timespec *b, struct timespec *a)
{
uint64_t elapsed;
struct timespec x = *b;
timespecsub(&x, a);
elapsed = GET_NANOSEC(&x);
if (elapsed == 0)
elapsed++;
return (elapsed);
}
int
isp_mbox_acquire(ispsoftc_t *isp)
{
if (isp->isp_osinfo.mboxbsy) {
return (1);
} else {
isp->isp_osinfo.mboxcmd_done = 0;
isp->isp_osinfo.mboxbsy = 1;
return (0);
}
}
void
isp_mbox_wait_complete(ispsoftc_t *isp, mbreg_t *mbp)
{
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
unsigned int usecs = mbp->timeout;
unsigned int max, olim, ilim;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (usecs == 0) {
usecs = MBCMD_DEFAULT_TIMEOUT;
}
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
max = isp->isp_mbxwrk0 + 1;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (isp->isp_osinfo.mbox_sleep_ok) {
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
unsigned int ms = (usecs + 999) / 1000;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
isp->isp_osinfo.mbox_sleep_ok = 0;
isp->isp_osinfo.mbox_sleeping = 1;
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
for (olim = 0; olim < max; olim++) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
msleep(&isp->isp_mbxworkp, &isp->isp_osinfo.lock, PRIBIO, "ispmbx_sleep", isp_mstohz(ms));
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (isp->isp_osinfo.mboxcmd_done) {
break;
}
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
}
isp->isp_osinfo.mbox_sleep_ok = 1;
isp->isp_osinfo.mbox_sleeping = 0;
} else {
for (olim = 0; olim < max; olim++) {
for (ilim = 0; ilim < usecs; ilim += 100) {
uint32_t isr;
uint16_t sema, mbox;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
if (isp->isp_osinfo.mboxcmd_done) {
break;
}
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
if (ISP_READ_ISR(isp, &isr, &sema, &mbox)) {
isp_intr(isp, isr, sema, mbox);
if (isp->isp_osinfo.mboxcmd_done) {
break;
}
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
ISP_DELAY(100);
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
}
if (isp->isp_osinfo.mboxcmd_done) {
break;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
}
}
if (isp->isp_osinfo.mboxcmd_done == 0) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
isp_prt(isp, ISP_LOGWARN, "%s Mailbox Command (0x%x) Timeout (%uus) (started @ %s:%d)",
isp->isp_osinfo.mbox_sleep_ok? "Interrupting" : "Polled", isp->isp_lastmbxcmd, usecs, mbp->func, mbp->lineno);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
mbp->param[0] = MBOX_TIMEOUT;
isp->isp_osinfo.mboxcmd_done = 1;
}
}
void
isp_mbox_notify_done(ispsoftc_t *isp)
{
if (isp->isp_osinfo.mbox_sleeping) {
wakeup(&isp->isp_mbxworkp);
}
isp->isp_osinfo.mboxcmd_done = 1;
}
void
isp_mbox_release(ispsoftc_t *isp)
{
isp->isp_osinfo.mboxbsy = 0;
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
int
isp_fc_scratch_acquire(ispsoftc_t *isp, int chan)
{
int ret = 0;
if (isp->isp_osinfo.pc.fc[chan].fcbsy) {
ret = -1;
} else {
isp->isp_osinfo.pc.fc[chan].fcbsy = 1;
}
return (ret);
}
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
int
isp_mstohz(int ms)
{
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
int hz;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
struct timeval t;
t.tv_sec = ms / 1000;
t.tv_usec = (ms % 1000) * 1000;
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
hz = tvtohz(&t);
if (hz < 0) {
hz = 0x7fffffff;
}
if (hz == 0) {
hz = 1;
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Try an experiment with using DMA to load firmware into a 2200- VERIFY CHECKSUM fails. Oh well, but keep a couple of the changes. Avoid overflow in usec counters when waiting for mailbox completion.
2006-12-17 16:59:19 +00:00
return (hz);
Push things closer to path failover by implementing loop down and gone device timers and zombie state entries. There are tunables that can be used to select a number of parameters. loop_down_limit - how long to wait for loop to come back up before declaring all devices dead (default 300 seconds) gone_device_time- how long to wait for a device that has appeared to leave the loop or fabric to reappear (default 30 seconds) Internal tunables include (which should be externalized): quick_boot_time- how long to wait when booting for loop to come up change_is_bad- whether or not to accept devices with the same WWNN/WWPN that reappear at a different PortID as being the 'same' device. Keen students of some of the subtle issues here will ask how one can keep devices from being re-accepted at all (the answer is to set a gone_device_time to zero- that effectively would be the same thing).
2006-11-14 08:45:48 +00:00
}
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
void
isp_platform_intr(void *arg)
{
ispsoftc_t *isp = arg;
uint32_t isr;
uint16_t sema, mbox;
ISP_LOCK(isp);
isp->isp_intcnt++;
if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) {
isp->isp_intbogus++;
} else {
isp_intr(isp, isr, sema, mbox);
}
ISP_UNLOCK(isp);
}
void
isp_common_dmateardown(ispsoftc_t *isp, struct ccb_scsiio *csio, uint32_t hdl)
{
if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTREAD);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
} else {
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_POSTWRITE);
Make this an MP safe driver but also still be multi-release. Seems to work on RELENG_4 through -current and also on sparc64 now. There may still be some issues with the auto attach/detach code to sort out. MFC after: 3 days
2007-05-05 20:17:23 +00:00
}
bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
}
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
int
isp_fcp_next_crn(ispsoftc_t *isp, uint8_t *crnp, XS_T *cmd)
{
Fix an oops where we wiped out DMA maps. Don't allocate extended command space for anything less than a 2300. MFC after: 1 month X-MFC: 238869
2012-08-12 20:45:47 +00:00
uint32_t chan, tgt, lun;
struct isp_fc *fc;
struct isp_nexus *nxp;
int idx;
if (isp->isp_type < ISP_HA_FC_2300)
return (0);
chan = XS_CHANNEL(cmd);
tgt = XS_TGT(cmd);
lun = XS_LUN(cmd);
fc = &isp->isp_osinfo.pc.fc[chan];
idx = NEXUS_HASH(tgt, lun);
nxp = fc->nexus_hash[idx];
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
while (nxp) {
if (nxp->tgt == tgt && nxp->lun == lun)
break;
nxp = nxp->next;
}
if (nxp == NULL) {
nxp = fc->nexus_free_list;
if (nxp == NULL) {
nxp = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_ZERO|M_NOWAIT);
if (nxp == NULL) {
return (-1);
}
} else {
fc->nexus_free_list = nxp->next;
}
nxp->tgt = tgt;
nxp->lun = lun;
nxp->next = fc->nexus_hash[idx];
fc->nexus_hash[idx] = nxp;
}
if (nxp) {
if (nxp->crnseed == 0)
nxp->crnseed = 1;
if (cmd)
PISP_PCMD(cmd)->crn = nxp->crnseed;
*crnp = nxp->crnseed++;
return (0);
}
return (-1);
}
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
/*
* We enter with the lock held
*/
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
void
isp_timer(void *arg)
{
ispsoftc_t *isp = arg;
#ifdef ISP_TARGET_MODE
isp_tmcmd_restart(isp);
#endif
More rototilling with target mode in an attemp to get multiple CCB at a time outstanding reliable. It's not there yet, but this is the direction to go in so might as well commit. So far, multiple at a time CCBs work (see ISP_INTERNAL_TARGET test mode), but it fails if there are more downstream than the SIM wants to handle and SRR is sort of confused when this happens, plus it is not entirely quite clear what one does if a CCB/CTIO fails and you have more in flight (that don't fail, say) and more queued up at the SIM level that haven't been started yet. Some of this is driven because there apparently is no flow control to requeue XPT_CONTINUE_IO requests like there are for XPT_SCSI_IO requests. It is also more driven in that the few target mode periph drivers there are are not really set up for handling pushback- heck most of them don't even check for errors (and what would they really do with them anyway? It's the initiator's problem, really....). The data transfer arithmetic has been worked over again to handle multiple outstanding commands, so you have a notion of what's been moved already as well as what's currently in flight. It turns that this led to uncovering a REPORT_LUNS bug in the ISP_INTERNAL_TARGET code which was sending back 24 bytes of rpl data instead of the specified 16. What happened furthermore here is that sending back 16 bytes and reporting an overrun of 8 bytes made the initiator (running FC-Tape aware f/w) mad enough to request, and keep requesting, another FCP response (I guess it didn't like the answer so kept asking for it again). Sponsored by: Spectralogic MFC after: 1 month
2012-08-08 18:24:33 +00:00
callout_reset(&isp->isp_osinfo.tmo, isp_timer_count, isp_timer, isp);
Add 8Gb support (isp_2500). Fix a fair number of configuration and firmware loading bugs. Target mode support has received some serious attention to make it more usable and stable. Some backward compatible additions to CAM have been made that make target mode async events easier to deal with have also been put into place. Further refinement and better support for NP-IV (N-port Virtualization) is now in place. Code for release prior to RELENG_7 has been stripped away for code clarity. Sponsored by: Copan Systems Reviewed by: scottl, ken, jung-uk kim Approved by: re
2009-08-01 01:04:26 +00:00
}
----------- MISC CHANGES Add a new async event- ISP_TARGET_NOTIFY_ACK, that will guarantee eventual delivery of a NOTIFY ACK. This is tons better than just ignoring the return from isp_notify_ack and hoping for the best. Clean up the lower level lun enable code to be a bit more sensible. Fix a botch in isp_endcmd which was messing up the sense data. Fix notify ack for SRR to use a sensible error code in the case of a reject. Clean up and make clear what kind of firmware we've loaded and what capabilities it has. ----------- FULL (252 byte) SENSE DATA In CTIOs for the ISP, there's only a limimted amount of space to load SENSE DATA for associated CHECK CONDITIONS (24 or 26 bytes). This makes it difficult to send full SENSE DATA that can be up to 252 bytes. Implement MODE 2 responses which have us build the FCP Response in system memory which the ISP will put onto the wire directly. On the initiator side, the same problem occurs in that a command status response only has a limited amount of space for SENSE DATA. This data is supplemented by status continuation responses that the ISP pushes onto the response queue after the status response. We now pull them all together so that full sense data can be returned to the periph driver. This is supported on 23XX, 24XX and 25XX cards. This is also preparation for doing >16 byte CDBs. ----------- FC TAPE Implement full FC-TAPE on both initiator and target mode side. This capability is driven by firmware loaded, board type, board NVRAM settings, or hint configuration options to enable or disable. This is supported for 23XX, 24XX and 25XX cards. On the initiator side, we pretty much just have to generate a command reference number for each command we send out. This is FCP-4 compliant in that we do this per ITL nexus to generate the allowed 1 thru 255 CRN. In order to support the target side of FC-TAPE, we now pay attention to more of the PRLI word 3 parameters which will tell us whether an initiator wants confirmed responses. While we're at it, we'll pay attention to the initiator view too and report it. On sending back CTIOs, we will notice whether the initiator wants confirmed responses and we'll set up flags to do so. If a response or data frame is lost the initiator sends us an SRR (Sequence Retransmit Request) ELS which shows up as an SRR notify and all outstanding CTIOs are nuked with SRR Received status. The SRR notify contains the offset that the initiator wants us to restart the data transfer from or to retransmit the response frame. If the ISP driver still has the CCB around for which the data segment or response applies, it will retransmit. However, we typically don't know about a lost data frame until we send the FCP Response and the initiator totes up counters for data moved and notices missing segments. In this case we've already completed the data CCBs already and sent themn back up to the periph driver. Because there's no really clean mechanism yet in CAM to handle this, a hack has been put into place to complete the CTIO CCB with the CAM_MESSAGE_RECV status which will have a MODIFY DATA POINTER extended message in it. The internal ISP target groks this and ctl(8) will be modified to deal with this as well. At any rate, the data is retransmitted and an an FCP response is sent. The whole point here is to successfully complete a command so that you don't have to depend on ULP (SCSI) to have to recover, which in the case of tape is not really possible (hence the name FC-TAPE). Sponsored by: Spectralogic MFC after: 1 month
2012-07-28 20:06:29 +00:00
isp_ecmd_t *
isp_get_ecmd(ispsoftc_t *isp)
{
isp_ecmd_t *ecmd = isp->isp_osinfo.ecmd_free;
if (ecmd) {
isp->isp_osinfo.ecmd_free = ecmd->next;
}
return (ecmd);
}
void
isp_put_ecmd(ispsoftc_t *isp, isp_ecmd_t *ecmd)
{
ecmd->next = isp->isp_osinfo.ecmd_free;
isp->isp_osinfo.ecmd_free = ecmd;
}
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