Commit Graph

132 Commits

Author SHA1 Message Date
Kenneth D. Merry
9deea8574e 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
Justin T. Gibbs
5f14bb14e3 Don't touch a path after we've free'd it. 1999-05-04 19:24:21 +00:00
Justin T. Gibbs
9dd03ecf30 Release bus entries in the EDT when a path is released.
Null out path entries when the path is released to catch bugs.
Free our configuration hook when we're done with it.
1999-04-23 23:25:48 +00:00
Peter Wemm
54a8c69347 Stage 1 of a cleanup of the i386 interrupt registration mechanism.
Interrupts under the new scheme are managed by the i386 nexus with the
awareness of the resource manager.  There is further room for optimizing
the interfaces still.  All the users of register_intr()/intr_create()
should be gone, with the exception of pcic and i386/isa/clock.c.
1999-04-21 07:26:30 +00:00
Justin T. Gibbs
d3a5df64ab Use macros for accessing the head of the heap so that code
is isolated from implementation details of the heap.
1999-04-19 21:26:17 +00:00
Justin T. Gibbs
5a526431f8 cam_periph.c:
Move handling of CAM_AUTOSENSE_FAIL into block dealing with
	all other scsi status errors.

cam_queue.c:
cam_queue.h:
	Fix 'off by one' heap bug in a more efficient manner.  Since
	heap algorithms like to deal with indexes started from 1,
	offset our heap array pointer at allocation time to make this
	so for a C environment.  This makes the implementation of the
	algorithm a bit more efficient.

cam_xpt.c:
	Use macros for accessing the head of the heap so that code
	is isolated from implementation details of the heap.
1999-04-19 21:26:08 +00:00
Matt Jacob
0366f90aa6 Make WangTek 51000 a fixed block device.
PR:		kern/11194
Obtained from:naddy@mips.rhein-neckar.de
1999-04-18 01:05:03 +00:00
Peter Wemm
e91896117b Well folks, this is it - The second stage of the removal for build support
for LKM's..
1999-04-17 08:36:07 +00:00
Justin T. Gibbs
cbcf29f8ea Remove camq_regen(). We already perform modular comparisons
for generation counts, so no further steps to deal with generation
count wrap are required.
1999-04-07 22:57:54 +00:00
Justin T. Gibbs
8bad620d54 Remove camq_regen(). We already perform modular comparisons
for generation counts, so no further steps to deal with generation
count wrap are required.

Fix an off by one problem in the camq heap code.
1999-04-07 22:57:48 +00:00
Peter Wemm
0cbbb7bffd Use PHOLD/PRELE rather than P_PHYSIO. 1999-04-06 03:05:36 +00:00
Kenneth D. Merry
ca3b51e9ed Disable tagged queueing for the IBM DCAS drives. These drives have poor
write performance when tagged queueing is enabled.

Although the PR was submitted for the 4 gig version of this drive, the
assumption is that the 2 gig version has the same problem.  Therefore
tagged queueing is disabled for both.

Also, update the comment for the Western Digital Enterprise drives to note
that the best performance for those drives is achieved when tagged queueing
is disabled and write caching is enabled.

PR:		kern/10398
Submitted by:	Hideaki Okada <hokada@isl.melco.co.jp>
1999-03-14 05:15:38 +00:00
Jordan K. Hubbard
79ccc19983 People who wanted the "tagged opening" message can boot -v. The rest
of us, who appear to have complained incessantly about this message since
it appeared, can now stop.
1999-03-11 10:48:02 +00:00
Kenneth D. Merry
c816e0254c The 4 gig version of the Seagate Medalist Pro seems to have the same
trouble with tagged queueing as the 6.5 gig version.

So, I've added a quirk entry for it to limit it to two outstanding
transactions at a time, just like the 6.5G version.  While I'm at it, add a
quirk for the 9G version of the drive, since it most likely has the same
problem.

Submitted by:	Jeremy Lea <reg@shale.csir.co.za>
1999-03-07 22:48:50 +00:00
Justin T. Gibbs
3a59d8c190 Implement the control device for the "targ" target mode processor target
emulator so that instances can be dynamically added and removed from the
system.

Properly reference count peripheral instances so they are cleaned up when
destroyed by the control device.

Set a timeout for test unit ready commands.  Before it was uninitialized
and could cause us to drop off the bus when no real timeout had occurred.
1999-03-05 23:25:11 +00:00
Justin T. Gibbs
e7783a9f45 Silence errors.
Reduce the number of accept target I/O entries we allow to better
exercise the resource shortage handling code in controller drivers.
1999-03-05 23:21:28 +00:00
Justin T. Gibbs
6f79c2d329 Silence complaints about synchronize cache requests that fail with illegal
request.
1999-03-05 23:20:20 +00:00
Justin T. Gibbs
d1dc9ab13a xpt_done has no reason to take a volatile ccb *. 1999-03-05 23:18:56 +00:00
Justin T. Gibbs
a5479bc57a Protect access to the EDT with splcam() to protect against corruption
caused by temporary EDT allocations performed by controller drivers in
their interrupt routiens.

Reference count bus entries in the EDT in preparation for support for
dynamic controller arrival and departure.

Have children of the EDT hold references to their parents.

Correct routing of the XPT_IMMED_NOTIFY ccb type for use in
target mode applications.

Fix a few cases where the generation count for EDT data members was
not being updated when a modification occurred.

splcam() problem Noticed by: Tor Egge <tegge@FreeBSD.org>
1999-03-05 23:18:16 +00:00
Justin T. Gibbs
a89bb8b406 Add constants and macros for dealing with XPT opcode group types. 1999-03-05 23:13:20 +00:00
Matt Jacob
b9a3993d60 +Match against T4000* for HP QIC quirks (not T4000S* where it doesn't then
catch a T4000s)
+ Set *some* kind of error at EOM if we're in fixed mode and have pending errs.
  Do not clear the ERR_PENDING bit if more buffers are queued.
+ Release the start_ccb in this case also, else we hang forever on rewinding.
+ Any kind of error for load to BOT in samount should then cause an attempt
  to use REWIND to come back to BOT. Do the initial load command quietly.
+ In samount, if we succeed, set the relative position markers.
1999-03-01 01:07:47 +00:00
Kenneth D. Merry
560d629f72 Add a quirk entry for the Seagate Medalist Pro 6 gig drive. It seems this
drive has very poor write performance (1.4MB/sec vs. 12MB/sec) with anything
more than two oustanding transactions.

So, this limits the number of tagged commands to two for that drive.
Thanks to Paul van der Zwan for doing a whole lot of testing to confirm
this.

Reported by:	Paul van der Zwan <paulz@trantor.xs4all.nl>
1999-02-26 18:38:06 +00:00
Kenneth D. Merry
588b47e5d2 Fix sync rate and transfer rate printouts in xpt_announce_periph().
Sync rates like 4.032MHz were getting printed as 4.32MHz.

Also, add a quirk entry for the 18G Quantum Atlas III.  Like most other
recent Quantum drives, it bogusly reports queue full.  Thanks to Andre
Albsmeier <andre.albsmeier@mchp.siemens.de> for the Atlas III inquiry
information.

Reviewed by:	gibbs
1999-02-18 18:08:39 +00:00
Justin T. Gibbs
11eaafb1f1 Completely set information in the transaction description before performing
a selwakeup for it.  Cosmetic.
1999-02-11 07:08:58 +00:00
Kenneth D. Merry
2a888f938e Add a prioritization field to the devstat_add_entry() call so that
peripheral drivers can determine where in the devstat(9) list they are
inserted.

This requires recompilation of libdevstat, systat, vmstat, rpc.rstatd, and
any ports that depend on the devstat code, since the size of the devstat
structure has changed.  The devstat version number has been incremented as
well to reflect the change.

This sorts devices in the devstat list in "more interesting" to "less
interesting" order.  So, for instance, da devices are now more important
than floppy drives, and so will appear before floppy drives in the default
output from systat, iostat, vmstat, etc.

The order of devices is, for now, kept in a central table in devicestat.h.
If individual drivers were able to make a meaningful decision on what
priority they should be at attach time, we could consider splitting the
priority information out into the various drivers.  For now, though, they
have no way of knowing that, so it's easier to put them in an easy to find
table.

Also, move the checkversion() call in vmstat(8) to a more logical place.

Thanks to Bruce and David O'Brien for suggestions, for reviewing this, and
for putting up with the long time it has taken me to commit it.  Bruce did
object somewhat to the central priority table (he would rather the
priorities be distributed in each driver), so his objection is duly noted
here.

Reviewed by:	bde, obrien
1999-02-10 00:04:13 +00:00
Matt Jacob
8410876eb9 quiet the alpha compiler 1999-02-05 08:49:34 +00:00
Matt Jacob
499d2a2a5c Extend unit numbers to a full 10 bits (split into sections
of the minor). Establish and use a control mode open. Control
mode opens may open the device without locking, but are prohibited
from all but some ioctls. MTIOCGET always works. MTIOCERRSTAT
works, but the clearing of latched error status is contingent
upon whether another application has the device open, in which
case an interruptible perip acquire is done. MTSETBSIZ, MTSETDNSTY
and MTCOMP also require a periph aquire.

Relative fileno and blkno are tracked. Note that just about any
error will make these undefined, and if you space to EOD or use
hardware block positioning, these are also lost until the next
UNLOAD or REWIND.

Driver state is also tracked and recorded in the unit softc
to be passed back in mt_dsreg for a MTIOCGET call.
Thanks to Dan Strick for suggesting this.

Reintroduce 2 filemarks at EOD for all but QIC devices. I
really think it's wrong, but there is a lot of 3rd party
software that depends upon this (not the least of which is
tcopy). Introduce a SA_QUIRK_1FM to ensure that some devices
can be marked as only being able to do 1 FM at EOD.

At samount time force a load to BOT if we aren't mounted. If the
LOAD command fails, use the REWIND command (e.g., for the IBM 3590
which for some gawdawful reason doesn't support the LOAD (to BOT)
command).

Also at samount time, if you don't know fixed or variable, try to
*set* to one of the known fixed (or variable, for special case)
density codes. We only have to do this once per boot, so it's not
that painful. This is another way to try and figure out the wierd
QIC devices without having to quirk everything in the universe.

A substantial amount of cleanup as to what operations can and what
operations cannot be retried. Don't retry space operations if they
fail- it'll just lead to lossage.

Not yet done is invalidating mounts correctly after errors. ENOTIME.
1999-02-05 07:32:52 +00:00
Matt Jacob
d032c79f31 add QIC 525,320,1320,3080 codes 1999-02-05 07:19:23 +00:00
Matthew Dillon
b4e36adf1c Fix warnings preparing for -Wall -Wcast-qual
Also disable one usb module in LINT due to fatal compilation errors,
    temporary.
1999-01-27 20:09:21 +00:00
Matthew Dillon
1c7c3c6a86 This is a rather large commit that encompasses the new swapper,
changes to the VM system to support the new swapper, VM bug
    fixes, several VM optimizations, and some additional revamping of the
    VM code.  The specific bug fixes will be documented with additional
    forced commits.  This commit is somewhat rough in regards to code
    cleanup issues.

Reviewed by:	"John S. Dyson" <root@dyson.iquest.net>, "David Greenman" <dg@root.com>
1999-01-21 08:29:12 +00:00
Matt Jacob
667d00a796 put it back the way it was 1999-01-20 23:00:31 +00:00
Matt Jacob
7781f5a621 temporary fix so alpha stays working while configure code is fixed 1999-01-20 19:08:45 +00:00
Kenneth D. Merry
6dd76100e4 By popular demand, back out the CONNER CFP* quirk entry, and return it to
its original form.  (Originally, it only applied to the CFP 2107.)

Hopefully we can come to some conclusion about which Conner drives are
broken for tagged queueing.
1999-01-20 01:13:20 +00:00
Kenneth D. Merry
1f04f5abd7 The Samsung WN34324U is broken for tagged queueing.
PR:		kern/9535
Submitted by:	NAKAJI Hiroyuki <nakaji@zeisei.dpri.kyoto-u.ac.jp>
1999-01-19 16:59:36 +00:00
Kenneth D. Merry
59190eaa10 Generalize the quirk entry for the Conner CFP* drives. It did just cover
the CFP2107, but it appears (not surprisingly) that the 1 gig and 4 gig
versions of that drive have the same problem with tagged queueing.

Also, fix the problem reported in PR kern/9482.  The XPT_DEV_MATCH case in
xptioctl() wasn't putting a proper path in the CCB before it called
xpt_action().  When CAMDEBUG is defined, and CAM_DEBUG_TRACE debugging is
turned on, the CAM_DEBUG statement at the beginning of xpt_action would end
up deferencing a NULL path pointer.  That of course caused a panic.

My solution is to just stick the xpt peripheral's path in the CCB.

PR:		kern/9482
Reviewed by:	gibbs
1999-01-19 01:02:47 +00:00
Peter Wemm
6d2a8f1ca0 Call the xpt_init() hook during at the start of the configure() process
via SYSINIT().  This gets a little closer to making cam useable as a
module.
1999-01-19 00:13:05 +00:00
Matt Jacob
15da947cba Sascha Blank <blank@uni-trier.de> convinced me I was an
idiot about testing SA_QUIRK_2FM in samount. Fixed.

Removed the NORRLS quirk (to save quirk space) and left
the behaviour of being quiet about failed reserve/release
(failed due Illegal Request) the same.

Added a SF_QUIET_IR for prevent/allow for the same purposes.
1999-01-16 19:20:30 +00:00
Matt Jacob
54e609ba5c More bandaids. One important one from Sascha Blank
(<blank@fox.uni-trier.de>) about quirks being set as
arithmetic values, not as bitfields. Add HP, Kennedy
and M4 1/2" reel quirk entries.

Do a lot of gratuitous source changing.

Audit all functions that build ccbs for the tape driver
and decide whether each one can be retried or not.

Still to do is some more state management post errors.
1999-01-16 04:02:31 +00:00
John Polstra
0ec81012da Replace includes of <sys/kernel.h> with includes of
<sys/linker_set.h> in those files that use only the linker set
definitions.
1999-01-14 06:22:10 +00:00
Justin T. Gibbs
c8bead2a12 Add support for wildcard device entries in the EDT. The target mode
'Black Hole' device uses this feature to schedule itself against any
target or lun attached to a controller that receives an unwanted request
from an initiator instead of having an instance per potential target/lun
request.

Use the wildcard entries to simplify wildcard async callback storage.

Don't announce devices twice to peripheral drivers.  The devices will
be announced as soon as the AC_PATH_REGISTERED event is registered by
the peripheral driver, so no manaul push of this event is required.

Reviewed by: Kenneth Merry <ken@FreeBSD.org>
1999-01-14 06:03:59 +00:00
Justin T. Gibbs
6fda903f5b The target mode 'Black Hole' device. This peripheral driver provides inquiry
data and sense information for target mode devices for which no other
peripheral driver is attached.  This simplifies the task of dealing with
luns that are not otherwise enabled for target mode if the controller
does not have firmware that automatically deals with this case (e.g.
the aic7xxx driver).
1999-01-14 06:00:29 +00:00
Justin T. Gibbs
443af83864 Properly handle transfers that only consume partial buffers. 1999-01-14 05:57:32 +00:00
Eivind Eklund
fcfc314003 Make dsopen() and dsioctl() use cdstrategy1 instead of cdstrategy.
This silence the warnings and makes it more obvious where the bugs
have to be fixed.
1999-01-12 16:26:19 +00:00
Matt Jacob
26fd36dffa Clean up and fix quirk table (was missing necessary wildcards) and add a couple
from the old driver. Change format of quirk table to have a preferred block
size for devices that need to be QUIRK_FIXED- this is loaded into the
last_media_blocksize tag at saregister time and will be used in the first
samount case.

Change sasetparams to take a sense_flags argument so that probe time testing
can be quieter (e.g. with SF_NO_PRINT).

Fix a couple of silly bugs in the fixed/variable determination in samount- one
was where there was a check against 'guessing' AND the density code being
default density- *SMACK* - you're only guessing if you find the media code
to be *other* than default density. Second bug was a test against current
blocksize being zero- should be a test against whether current blocksize
is not equal to the last blocksize if you had wanted to be fixed (suppose
you came up in fixed, but not the preferred size?). And if you don't
know what the fixed size should be, select 512 as the starting point,
not BLKDEV_IOSIZE (reality wins). Finally, in doing the test set to variable
mode, make sasetparams non-chatty.
1999-01-12 08:15:47 +00:00
Matt Jacob
7439f1066e Make HP T4000S quirk to FIXED mode 1999-01-11 18:26:25 +00:00
Eivind Eklund
cd651e8119 Add 'static' to the declaration, too. 1999-01-11 17:45:22 +00:00
Matt Jacob
f55ca80bcf Like the problems just fixed in scsi_da.c, make sure
to release the probe ccb before taking down the periph.
Also, don't do cdscheduling if you're not going to
attach the device after all.
Reviewed by:	ken@freebsd.org
1999-01-07 20:20:57 +00:00
Matt Jacob
f403e6edea A better fix to avoid race conditions between failed probes
and peripheral removal.
Obtained from:gibbs@freebsd.org
1999-01-07 20:19:09 +00:00
Kenneth D. Merry
4cdd022168 The Quantum Atlas III evidently has an identical problem to the Atlas II.
It keeps returning queue full until we have reduced the number of tagged
openings to the minimum.

So, put in a quirk entry with the same work-around.  This quirk entry is
only for the 9G Atlas III, once someone comes up with inquiry information
for the 18G version of that drive, we can quirk it as well.

Submitted by:	"Johan Granlund" <johan@granlund.nu>
1999-01-07 01:11:24 +00:00
Kenneth D. Merry
bfc0eb0f5a The Conner CFP2107 is a fixed-media drive, not removable media. This fixes
the quirk that disables tagged queueing for those drives.

Also, silence a warning by disabling xpt_for_all_targets() and
xpt_for_all_periphs().  These two functions are not currently used, but
they should not be removed.  They're part of a set of functions that
provide a way to execute a function for every {bus,target,device,periph} in
the system.

If anyone needs to use either function in the future, they can be
un-#ifdefed.
1999-01-05 21:37:07 +00:00