freebsd-skq/sys/cam/scsi/scsi_cd.c

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/*
* Copyright (c) 1997 Justin T. Gibbs.
* Copyright (c) 1997, 1998, 1999, 2000, 2001 Kenneth D. Merry.
* All rights reserved.
*
* 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, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*
1999-08-28 01:08:13 +00:00
* $FreeBSD$
*/
/*
* Portions of this driver taken from the original FreeBSD cd driver.
* Written by Julian Elischer (julian@tfs.com)
* for TRW Financial Systems for use under the MACH(2.5) operating system.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*
* from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
*/
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
#include "opt_cd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
#include <sys/conf.h>
#include <sys/disk.h>
#include <sys/malloc.h>
#include <sys/cdio.h>
#include <sys/dvdio.h>
#include <sys/devicestat.h>
#include <sys/sysctl.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_extend.h>
#include <cam/cam_periph.h>
#include <cam/cam_xpt_periph.h>
#include <cam/cam_queue.h>
#include <cam/scsi/scsi_message.h>
#include <cam/scsi/scsi_da.h>
#include <cam/scsi/scsi_cd.h>
#define LEADOUT 0xaa /* leadout toc entry */
struct cd_params {
u_int32_t blksize;
u_long disksize;
};
typedef enum {
CD_Q_NONE = 0x00,
CD_Q_NO_TOUCH = 0x01,
CD_Q_BCD_TRACKS = 0x02,
CD_Q_NO_CHANGER = 0x04,
CD_Q_CHANGER = 0x08
} cd_quirks;
typedef enum {
CD_FLAG_INVALID = 0x001,
CD_FLAG_NEW_DISC = 0x002,
CD_FLAG_DISC_LOCKED = 0x004,
CD_FLAG_DISC_REMOVABLE = 0x008,
CD_FLAG_TAGGED_QUEUING = 0x010,
CD_FLAG_CHANGER = 0x040,
CD_FLAG_ACTIVE = 0x080,
CD_FLAG_SCHED_ON_COMP = 0x100,
CD_FLAG_RETRY_UA = 0x200
} cd_flags;
typedef enum {
CD_CCB_PROBE = 0x01,
CD_CCB_BUFFER_IO = 0x02,
CD_CCB_WAITING = 0x03,
CD_CCB_TYPE_MASK = 0x0F,
CD_CCB_RETRY_UA = 0x10
} cd_ccb_state;
typedef enum {
CHANGER_TIMEOUT_SCHED = 0x01,
CHANGER_SHORT_TMOUT_SCHED = 0x02,
CHANGER_MANUAL_CALL = 0x04,
CHANGER_NEED_TIMEOUT = 0x08
} cd_changer_flags;
#define ccb_state ppriv_field0
#define ccb_bp ppriv_ptr1
typedef enum {
CD_STATE_PROBE,
CD_STATE_NORMAL
} cd_state;
struct cd_softc {
cam_pinfo pinfo;
cd_state state;
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
volatile cd_flags flags;
struct bio_queue_head bio_queue;
LIST_HEAD(, ccb_hdr) pending_ccbs;
struct cd_params params;
struct disk disk;
union ccb saved_ccb;
cd_quirks quirks;
struct devstat device_stats;
STAILQ_ENTRY(cd_softc) changer_links;
struct cdchanger *changer;
int bufs_left;
struct cam_periph *periph;
};
struct cd_quirk_entry {
struct scsi_inquiry_pattern inq_pat;
cd_quirks quirks;
};
/*
* These quirk entries aren't strictly necessary. Basically, what they do
* is tell cdregister() up front that a device is a changer. Otherwise, it
* will figure that fact out once it sees a LUN on the device that is
* greater than 0. If it is known up front that a device is a changer, all
* I/O to the device will go through the changer scheduling routines, as
* opposed to the "normal" CD code.
*/
static struct cd_quirk_entry cd_quirk_table[] =
{
{
{ T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"},
/*quirks*/ CD_Q_CHANGER
},
{
{ T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*",
"*"}, /* quirks */ CD_Q_CHANGER
},
{
{ T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"},
/* quirks */ CD_Q_CHANGER
},
{
{ T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
/* quirks */ CD_Q_BCD_TRACKS
}
};
#ifndef MIN
#define MIN(x,y) ((x<y) ? x : y)
#endif
#define CD_CDEV_MAJOR 15
static d_open_t cdopen;
static d_close_t cdclose;
static d_ioctl_t cdioctl;
static d_strategy_t cdstrategy;
static periph_init_t cdinit;
static periph_ctor_t cdregister;
static periph_dtor_t cdcleanup;
static periph_start_t cdstart;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
static periph_oninv_t cdoninvalidate;
static void cdasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg);
static void cdshorttimeout(void *arg);
static void cdschedule(struct cam_periph *periph, int priority);
static void cdrunchangerqueue(void *arg);
static void cdchangerschedule(struct cd_softc *softc);
static int cdrunccb(union ccb *ccb,
int (*error_routine)(union ccb *ccb,
u_int32_t cam_flags,
u_int32_t sense_flags),
u_int32_t cam_flags, u_int32_t sense_flags);
1999-01-11 17:45:22 +00:00
static union ccb *cdgetccb(struct cam_periph *periph,
u_int32_t priority);
static void cddone(struct cam_periph *periph,
union ccb *start_ccb);
static int cderror(union ccb *ccb, u_int32_t cam_flags,
u_int32_t sense_flags);
static void cdprevent(struct cam_periph *periph, int action);
static int cdsize(dev_t dev, u_int32_t *size);
static int cdfirsttrackisdata(struct cam_periph *periph);
static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
u_int32_t start, struct cd_toc_entry *data,
u_int32_t len);
static int cdgetmode(struct cam_periph *periph,
struct cd_mode_data *data, u_int32_t page);
static int cdsetmode(struct cam_periph *periph,
struct cd_mode_data *data);
static int cdplay(struct cam_periph *periph, u_int32_t blk,
u_int32_t len);
static int cdreadsubchannel(struct cam_periph *periph,
u_int32_t mode, u_int32_t format,
int track,
struct cd_sub_channel_info *data,
u_int32_t len);
static int cdplaymsf(struct cam_periph *periph, u_int32_t startm,
u_int32_t starts, u_int32_t startf,
u_int32_t endm, u_int32_t ends,
u_int32_t endf);
static int cdplaytracks(struct cam_periph *periph,
u_int32_t strack, u_int32_t sindex,
u_int32_t etrack, u_int32_t eindex);
static int cdpause(struct cam_periph *periph, u_int32_t go);
static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
static int cdstartunit(struct cam_periph *periph);
static int cdreportkey(struct cam_periph *periph,
struct dvd_authinfo *authinfo);
static int cdsendkey(struct cam_periph *periph,
struct dvd_authinfo *authinfo);
static int cdreaddvdstructure(struct cam_periph *periph,
struct dvd_struct *dvdstruct);
static struct periph_driver cddriver =
{
cdinit, "cd",
TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
};
PERIPHDRIVER_DECLARE(cd, cddriver);
/* For 2.2-stable support */
#ifndef D_DISK
#define D_DISK 0
#endif
static struct cdevsw cd_cdevsw = {
/* open */ cdopen,
/* close */ cdclose,
/* read */ physread,
/* write */ physwrite,
/* ioctl */ cdioctl,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ cdstrategy,
/* name */ "cd",
/* maj */ CD_CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ D_DISK,
};
static struct cdevsw cddisk_cdevsw;
static struct extend_array *cdperiphs;
static int num_changers;
#ifndef CHANGER_MIN_BUSY_SECONDS
#define CHANGER_MIN_BUSY_SECONDS 5
#endif
#ifndef CHANGER_MAX_BUSY_SECONDS
#define CHANGER_MAX_BUSY_SECONDS 15
#endif
static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS;
static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS;
/*
* XXX KDM this CAM node should be moved if we ever get more CAM sysctl
* variables.
*/
SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem");
SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer");
SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW,
&changer_min_busy_seconds, 0, "Minimum changer scheduling quantum");
SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW,
&changer_max_busy_seconds, 0, "Maximum changer scheduling quantum");
struct cdchanger {
path_id_t path_id;
target_id_t target_id;
int num_devices;
struct camq devq;
struct timeval start_time;
struct cd_softc *cur_device;
struct callout_handle short_handle;
struct callout_handle long_handle;
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
volatile cd_changer_flags flags;
STAILQ_ENTRY(cdchanger) changer_links;
STAILQ_HEAD(chdevlist, cd_softc) chluns;
};
static STAILQ_HEAD(changerlist, cdchanger) changerq;
void
cdinit(void)
{
cam_status status;
struct cam_path *path;
/*
* Create our extend array for storing the devices we attach to.
*/
cdperiphs = cam_extend_new();
if (cdperiphs == NULL) {
printf("cd: Failed to alloc extend array!\n");
return;
}
/*
* Install a global async callback. This callback will
* receive async callbacks like "new device found".
*/
status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
if (status == CAM_REQ_CMP) {
struct ccb_setasync csa;
xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_FOUND_DEVICE;
csa.callback = cdasync;
csa.callback_arg = NULL;
xpt_action((union ccb *)&csa);
status = csa.ccb_h.status;
xpt_free_path(path);
}
if (status != CAM_REQ_CMP) {
printf("cd: Failed to attach master async callback "
"due to status 0x%x!\n", status);
}
}
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
static void
cdoninvalidate(struct cam_periph *periph)
{
int s;
struct cd_softc *softc;
struct bio *q_bp;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
struct ccb_setasync csa;
softc = (struct cd_softc *)periph->softc;
/*
* De-register any async callbacks.
*/
xpt_setup_ccb(&csa.ccb_h, periph->path,
/* priority */ 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = 0;
csa.callback = cdasync;
csa.callback_arg = periph;
xpt_action((union ccb *)&csa);
softc->flags |= CD_FLAG_INVALID;
/*
* Although the oninvalidate() routines are always called at
* splsoftcam, we need to be at splbio() here to keep the buffer
* queue from being modified while we traverse it.
*/
s = splbio();
/*
* Return all queued I/O with ENXIO.
* XXX Handle any transactions queued to the card
* with XPT_ABORT_CCB.
*/
while ((q_bp = bioq_first(&softc->bio_queue)) != NULL){
bioq_remove(&softc->bio_queue, q_bp);
q_bp->bio_resid = q_bp->bio_bcount;
biofinish(q_bp, NULL, ENXIO);
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
}
splx(s);
/*
* If this device is part of a changer, and it was scheduled
* to run, remove it from the run queue since we just nuked
* all of its scheduled I/O.
*/
if ((softc->flags & CD_FLAG_CHANGER)
&& (softc->pinfo.index != CAM_UNQUEUED_INDEX))
camq_remove(&softc->changer->devq, softc->pinfo.index);
xpt_print_path(periph->path);
printf("lost device\n");
}
static void
cdcleanup(struct cam_periph *periph)
{
struct cd_softc *softc;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
int s;
softc = (struct cd_softc *)periph->softc;
xpt_print_path(periph->path);
printf("removing device entry\n");
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
s = splsoftcam();
/*
* In the queued, non-active case, the device in question
* has already been removed from the changer run queue. Since this
* device is active, we need to de-activate it, and schedule
* another device to run. (if there is another one to run)
*/
if ((softc->flags & CD_FLAG_CHANGER)
&& (softc->flags & CD_FLAG_ACTIVE)) {
/*
* The purpose of the short timeout is soley to determine
* whether the current device has finished or not. Well,
* since we're removing the active device, we know that it
* is finished. So, get rid of the short timeout.
* Otherwise, if we're in the time period before the short
* timeout fires, and there are no other devices in the
* queue to run, there won't be any other device put in the
* active slot. i.e., when we call cdrunchangerqueue()
* below, it won't do anything. Then, when the short
* timeout fires, it'll look at the "current device", which
* we are free below, and possibly panic the kernel on a
* bogus pointer reference.
*
* The long timeout doesn't really matter, since we
* decrement the qfrozen_cnt to indicate that there is
* nothing in the active slot now. Therefore, there won't
* be any bogus pointer references there.
*/
if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
untimeout(cdshorttimeout, softc->changer,
softc->changer->short_handle);
softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
}
softc->changer->devq.qfrozen_cnt--;
softc->changer->flags |= CHANGER_MANUAL_CALL;
cdrunchangerqueue(softc->changer);
}
/*
* If we're removing the last device on the changer, go ahead and
* remove the changer device structure.
*/
if ((softc->flags & CD_FLAG_CHANGER)
&& (--softc->changer->num_devices == 0)) {
/*
* Theoretically, there shouldn't be any timeouts left, but
* I'm not completely sure that that will be the case. So,
* it won't hurt to check and see if there are any left.
*/
if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) {
untimeout(cdrunchangerqueue, softc->changer,
softc->changer->long_handle);
softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED;
}
if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
untimeout(cdshorttimeout, softc->changer,
softc->changer->short_handle);
softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
}
STAILQ_REMOVE(&changerq, softc->changer, cdchanger,
changer_links);
xpt_print_path(periph->path);
printf("removing changer entry\n");
free(softc->changer, M_DEVBUF);
num_changers--;
}
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
devstat_remove_entry(&softc->device_stats);
cam_extend_release(cdperiphs, periph->unit_number);
if (softc->disk.d_dev) {
disk_destroy(softc->disk.d_dev);
}
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
free(softc, M_DEVBUF);
splx(s);
}
static void
cdasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg)
{
struct cam_periph *periph;
periph = (struct cam_periph *)callback_arg;
switch (code) {
case AC_FOUND_DEVICE:
{
struct ccb_getdev *cgd;
cam_status status;
cgd = (struct ccb_getdev *)arg;
if (cgd == NULL)
break;
if (SID_TYPE(&cgd->inq_data) != T_CDROM
&& SID_TYPE(&cgd->inq_data) != T_WORM)
break;
/*
* Allocate a peripheral instance for
* this device and start the probe
* process.
*/
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
status = cam_periph_alloc(cdregister, cdoninvalidate,
cdcleanup, cdstart,
"cd", CAM_PERIPH_BIO,
cgd->ccb_h.path, cdasync,
AC_FOUND_DEVICE, cgd);
if (status != CAM_REQ_CMP
&& status != CAM_REQ_INPROG)
printf("cdasync: Unable to attach new device "
"due to status 0x%x\n", status);
break;
}
case AC_SENT_BDR:
case AC_BUS_RESET:
{
struct cd_softc *softc;
struct ccb_hdr *ccbh;
int s;
softc = (struct cd_softc *)periph->softc;
s = splsoftcam();
/*
* Don't fail on the expected unit attention
* that will occur.
*/
softc->flags |= CD_FLAG_RETRY_UA;
LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
ccbh->ccb_state |= CD_CCB_RETRY_UA;
splx(s);
/* FALLTHROUGH */
}
default:
cam_periph_async(periph, code, path, arg);
break;
}
}
static cam_status
cdregister(struct cam_periph *periph, void *arg)
{
struct cd_softc *softc;
struct ccb_setasync csa;
struct ccb_getdev *cgd;
caddr_t match;
cgd = (struct ccb_getdev *)arg;
if (periph == NULL) {
printf("cdregister: periph was NULL!!\n");
return(CAM_REQ_CMP_ERR);
}
if (cgd == NULL) {
printf("cdregister: no getdev CCB, can't register device\n");
return(CAM_REQ_CMP_ERR);
}
softc = (struct cd_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
if (softc == NULL) {
printf("cdregister: Unable to probe new device. "
"Unable to allocate softc\n");
return(CAM_REQ_CMP_ERR);
}
bzero(softc, sizeof(*softc));
LIST_INIT(&softc->pending_ccbs);
softc->state = CD_STATE_PROBE;
bioq_init(&softc->bio_queue);
if (SID_IS_REMOVABLE(&cgd->inq_data))
softc->flags |= CD_FLAG_DISC_REMOVABLE;
if ((cgd->inq_data.flags & SID_CmdQue) != 0)
softc->flags |= CD_FLAG_TAGGED_QUEUING;
periph->softc = softc;
softc->periph = periph;
cam_extend_set(cdperiphs, periph->unit_number, periph);
/*
* See if this device has any quirks.
*/
match = cam_quirkmatch((caddr_t)&cgd->inq_data,
(caddr_t)cd_quirk_table,
sizeof(cd_quirk_table)/sizeof(*cd_quirk_table),
sizeof(*cd_quirk_table), scsi_inquiry_match);
if (match != NULL)
softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
else
softc->quirks = CD_Q_NONE;
/*
* We need to register the statistics structure for this device,
* but we don't have the blocksize yet for it. So, we register
* the structure and indicate that we don't have the blocksize
* yet. Unlike other SCSI peripheral drivers, we explicitly set
* the device type here to be CDROM, rather than just ORing in
* the device type. This is because this driver can attach to either
* CDROM or WORM devices, and we want this peripheral driver to
* show up in the devstat list as a CD peripheral driver, not a
* WORM peripheral driver. WORM drives will also have the WORM
* driver attached to them.
*/
devstat_add_entry(&softc->device_stats, "cd",
periph->unit_number, 0,
DEVSTAT_BS_UNAVAILABLE,
DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI,
DEVSTAT_PRIORITY_CD);
disk_create(periph->unit_number, &softc->disk,
DSO_ONESLICE | DSO_COMPATLABEL,
&cd_cdevsw, &cddisk_cdevsw);
/*
* Add an async callback so that we get
* notified if this device goes away.
*/
xpt_setup_ccb(&csa.ccb_h, periph->path,
/* priority */ 5);
csa.ccb_h.func_code = XPT_SASYNC_CB;
csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
csa.callback = cdasync;
csa.callback_arg = periph;
xpt_action((union ccb *)&csa);
/*
* If the target lun is greater than 0, we most likely have a CD
* changer device. Check the quirk entries as well, though, just
* in case someone has a CD tower with one lun per drive or
* something like that. Also, if we know up front that a
* particular device is a changer, we can mark it as such starting
* with lun 0, instead of lun 1. It shouldn't be necessary to have
* a quirk entry to define something as a changer, however.
*/
if (((cgd->ccb_h.target_lun > 0)
&& ((softc->quirks & CD_Q_NO_CHANGER) == 0))
|| ((softc->quirks & CD_Q_CHANGER) != 0)) {
struct cdchanger *nchanger;
struct cam_periph *nperiph;
struct cam_path *path;
cam_status status;
int found;
/* Set the changer flag in the current device's softc */
softc->flags |= CD_FLAG_CHANGER;
if (num_changers == 0)
STAILQ_INIT(&changerq);
/*
* Now, look around for an existing changer device with the
* same path and target ID as the current device.
*/
for (found = 0,
nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq);
nchanger != NULL;
nchanger = STAILQ_NEXT(nchanger, changer_links)){
if ((nchanger->path_id == cgd->ccb_h.path_id)
&& (nchanger->target_id == cgd->ccb_h.target_id)) {
found = 1;
break;
}
}
/*
* If we found a matching entry, just add this device to
* the list of devices on this changer.
*/
if (found == 1) {
struct chdevlist *chlunhead;
chlunhead = &nchanger->chluns;
/*
* XXX KDM look at consolidating this code with the
* code below in a separate function.
*/
/*
* Create a path with lun id 0, and see if we can
* find a matching device
*/
status = xpt_create_path(&path, /*periph*/ periph,
cgd->ccb_h.path_id,
cgd->ccb_h.target_id, 0);
if ((status == CAM_REQ_CMP)
&& ((nperiph = cam_periph_find(path, "cd")) != NULL)){
struct cd_softc *nsoftc;
nsoftc = (struct cd_softc *)nperiph->softc;
if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){
nsoftc->flags |= CD_FLAG_CHANGER;
nchanger->num_devices++;
if (camq_resize(&nchanger->devq,
nchanger->num_devices)!=CAM_REQ_CMP){
printf("cdregister: "
"camq_resize "
"failed, changer "
"support may "
"be messed up\n");
}
nsoftc->changer = nchanger;
nsoftc->pinfo.index =CAM_UNQUEUED_INDEX;
STAILQ_INSERT_TAIL(&nchanger->chluns,
nsoftc,changer_links);
}
xpt_free_path(path);
} else if (status == CAM_REQ_CMP)
xpt_free_path(path);
else {
printf("cdregister: unable to allocate path\n"
"cdregister: changer support may be "
"broken\n");
}
nchanger->num_devices++;
softc->changer = nchanger;
softc->pinfo.index = CAM_UNQUEUED_INDEX;
if (camq_resize(&nchanger->devq,
nchanger->num_devices) != CAM_REQ_CMP) {
printf("cdregister: camq_resize "
"failed, changer support may "
"be messed up\n");
}
STAILQ_INSERT_TAIL(chlunhead, softc, changer_links);
}
/*
* In this case, we don't already have an entry for this
* particular changer, so we need to create one, add it to
* the queue, and queue this device on the list for this
* changer. Before we queue this device, however, we need
* to search for lun id 0 on this target, and add it to the
* queue first, if it exists. (and if it hasn't already
* been marked as part of the changer.)
*/
else {
nchanger = malloc(sizeof(struct cdchanger),
M_DEVBUF, M_NOWAIT);
if (nchanger == NULL) {
softc->flags &= ~CD_FLAG_CHANGER;
printf("cdregister: unable to malloc "
"changer structure\ncdregister: "
"changer support disabled\n");
/*
* Yes, gotos can be gross but in this case
* I think it's justified..
*/
goto cdregisterexit;
}
/* zero the structure */
bzero(nchanger, sizeof(struct cdchanger));
if (camq_init(&nchanger->devq, 1) != 0) {
softc->flags &= ~CD_FLAG_CHANGER;
printf("cdregister: changer support "
"disabled\n");
goto cdregisterexit;
}
num_changers++;
nchanger->path_id = cgd->ccb_h.path_id;
nchanger->target_id = cgd->ccb_h.target_id;
/* this is superfluous, but it makes things clearer */
nchanger->num_devices = 0;
STAILQ_INIT(&nchanger->chluns);
STAILQ_INSERT_TAIL(&changerq, nchanger,
changer_links);
/*
* Create a path with lun id 0, and see if we can
* find a matching device
*/
status = xpt_create_path(&path, /*periph*/ periph,
cgd->ccb_h.path_id,
cgd->ccb_h.target_id, 0);
/*
* If we were able to allocate the path, and if we
* find a matching device and it isn't already
* marked as part of a changer, then we add it to
* the current changer.
*/
if ((status == CAM_REQ_CMP)
&& ((nperiph = cam_periph_find(path, "cd")) != NULL)
&& ((((struct cd_softc *)periph->softc)->flags &
CD_FLAG_CHANGER) == 0)) {
struct cd_softc *nsoftc;
nsoftc = (struct cd_softc *)nperiph->softc;
nsoftc->flags |= CD_FLAG_CHANGER;
nchanger->num_devices++;
if (camq_resize(&nchanger->devq,
nchanger->num_devices) != CAM_REQ_CMP) {
printf("cdregister: camq_resize "
"failed, changer support may "
"be messed up\n");
}
nsoftc->changer = nchanger;
nsoftc->pinfo.index = CAM_UNQUEUED_INDEX;
STAILQ_INSERT_TAIL(&nchanger->chluns,
nsoftc, changer_links);
xpt_free_path(path);
} else if (status == CAM_REQ_CMP)
xpt_free_path(path);
else {
printf("cdregister: unable to allocate path\n"
"cdregister: changer support may be "
"broken\n");
}
softc->changer = nchanger;
softc->pinfo.index = CAM_UNQUEUED_INDEX;
nchanger->num_devices++;
if (camq_resize(&nchanger->devq,
nchanger->num_devices) != CAM_REQ_CMP) {
printf("cdregister: camq_resize "
"failed, changer support may "
"be messed up\n");
}
STAILQ_INSERT_TAIL(&nchanger->chluns, softc,
changer_links);
}
}
cdregisterexit:
/* Lock this peripheral until we are setup */
/* Can't block */
cam_periph_lock(periph, PRIBIO);
if ((softc->flags & CD_FLAG_CHANGER) == 0)
xpt_schedule(periph, /*priority*/5);
else
cdschedule(periph, /*priority*/ 5);
return(CAM_REQ_CMP);
}
static int
cdopen(dev_t dev, int flags, int fmt, struct proc *p)
{
struct disklabel *label;
struct cam_periph *periph;
struct cd_softc *softc;
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
struct ccb_getdev cgd;
u_int32_t size;
int unit, error;
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
int s;
unit = dkunit(dev);
periph = cam_extend_get(cdperiphs, unit);
if (periph == NULL)
return (ENXIO);
softc = (struct cd_softc *)periph->softc;
/*
* Grab splsoftcam and hold it until we lock the peripheral.
*/
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
s = splsoftcam();
if (softc->flags & CD_FLAG_INVALID) {
splx(s);
return(ENXIO);
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
}
if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) {
splx(s);
return (error);
}
splx(s);
if (cam_periph_acquire(periph) != CAM_REQ_CMP)
return(ENXIO);
cdprevent(periph, PR_PREVENT);
/* find out the size */
if ((error = cdsize(dev, &size)) != 0) {
cdprevent(periph, PR_ALLOW);
cam_periph_unlock(periph);
cam_periph_release(periph);
return(error);
}
/*
* If we get a non-zero return, revert back to not reading the
* label off the disk. The first track is likely audio, which
* won't have a disklabel.
*/
if ((error = cdfirsttrackisdata(periph)) != 0) {
softc->disk.d_dsflags &= ~DSO_COMPATLABEL;
softc->disk.d_dsflags |= DSO_NOLABELS;
error = 0;
}
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
/*
* Build prototype label for whole disk.
* Should take information about different data tracks from the
* TOC and put it in the partition table.
*/
label = &softc->disk.d_label;
bzero(label, sizeof(*label));
label->d_type = DTYPE_SCSI;
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
/*
* Grab the inquiry data to get the vendor and product names.
* Put them in the typename and packname for the label.
*/
xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
cgd.ccb_h.func_code = XPT_GDEV_TYPE;
xpt_action((union ccb *)&cgd);
strncpy(label->d_typename, cgd.inq_data.vendor,
min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
strncpy(label->d_packname, cgd.inq_data.product,
min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
label->d_secsize = softc->params.blksize;
label->d_secperunit = softc->params.disksize;
label->d_flags = D_REMOVABLE;
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
/*
* Make partition 'a' cover the whole disk. This is a temporary
* compatibility hack. The 'a' partition should not exist, so
* the slice code won't create it. The slice code will make
* partition (RAW_PART + 'a') cover the whole disk and fill in
* some more defaults.
*/
label->d_partitions[0].p_size = label->d_secperunit;
label->d_partitions[0].p_fstype = FS_OTHER;
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
/*
* We unconditionally (re)set the blocksize each time the
* CD device is opened. This is because the CD can change,
* and therefore the blocksize might change.
* XXX problems here if some slice or partition is still
* open with the old size?
*/
if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0)
softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
softc->device_stats.block_size = softc->params.blksize;
cam_periph_unlock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
return (error);
}
static int
cdclose(dev_t dev, int flag, int fmt, struct proc *p)
{
struct cam_periph *periph;
struct cd_softc *softc;
int unit, error;
unit = dkunit(dev);
periph = cam_extend_get(cdperiphs, unit);
if (periph == NULL)
return (ENXIO);
softc = (struct cd_softc *)periph->softc;
if ((error = cam_periph_lock(periph, PRIBIO)) != 0)
return (error);
if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
cdprevent(periph, PR_ALLOW);
/*
* Unconditionally set the dsopen() flags back to their default
* state.
*/
softc->disk.d_dsflags &= ~DSO_NOLABELS;
softc->disk.d_dsflags |= DSO_COMPATLABEL;
/*
* Since we're closing this CD, mark the blocksize as unavailable.
* It will be marked as available whence the CD is opened again.
*/
softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
cam_periph_unlock(periph);
cam_periph_release(periph);
return (0);
}
static void
cdshorttimeout(void *arg)
{
struct cdchanger *changer;
int s;
s = splsoftcam();
changer = (struct cdchanger *)arg;
/* Always clear the short timeout flag, since that's what we're in */
changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
/*
* Check to see if there is any more pending or outstanding I/O for
* this device. If not, move it out of the active slot.
*/
if ((bioq_first(&changer->cur_device->bio_queue) == NULL)
&& (changer->cur_device->device_stats.busy_count == 0)) {
changer->flags |= CHANGER_MANUAL_CALL;
cdrunchangerqueue(changer);
}
splx(s);
}
/*
* This is a wrapper for xpt_schedule. It only applies to changers.
*/
static void
cdschedule(struct cam_periph *periph, int priority)
{
struct cd_softc *softc;
int s;
s = splsoftcam();
softc = (struct cd_softc *)periph->softc;
/*
* If this device isn't currently queued, and if it isn't
* the active device, then we queue this device and run the
* changer queue if there is no timeout scheduled to do it.
* If this device is the active device, just schedule it
* to run again. If this device is queued, there should be
* a timeout in place already that will make sure it runs.
*/
if ((softc->pinfo.index == CAM_UNQUEUED_INDEX)
&& ((softc->flags & CD_FLAG_ACTIVE) == 0)) {
/*
* We don't do anything with the priority here.
* This is strictly a fifo queue.
*/
softc->pinfo.priority = 1;
softc->pinfo.generation = ++softc->changer->devq.generation;
camq_insert(&softc->changer->devq, (cam_pinfo *)softc);
/*
* Since we just put a device in the changer queue,
* check and see if there is a timeout scheduled for
* this changer. If so, let the timeout handle
* switching this device into the active slot. If
* not, manually call the timeout routine to
* bootstrap things.
*/
if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
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
&& ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
&& ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){
softc->changer->flags |= CHANGER_MANUAL_CALL;
cdrunchangerqueue(softc->changer);
}
} else if ((softc->flags & CD_FLAG_ACTIVE)
&& ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0))
xpt_schedule(periph, priority);
splx(s);
}
static void
cdrunchangerqueue(void *arg)
{
struct cd_softc *softc;
struct cdchanger *changer;
int called_from_timeout;
int s;
s = splsoftcam();
changer = (struct cdchanger *)arg;
/*
* If we have NOT been called from cdstrategy() or cddone(), and
* instead from a timeout routine, go ahead and clear the
* timeout flag.
*/
if ((changer->flags & CHANGER_MANUAL_CALL) == 0) {
changer->flags &= ~CHANGER_TIMEOUT_SCHED;
called_from_timeout = 1;
} else
called_from_timeout = 0;
/* Always clear the manual call flag */
changer->flags &= ~CHANGER_MANUAL_CALL;
/* nothing to do if the queue is empty */
if (changer->devq.entries <= 0) {
splx(s);
return;
}
/*
* If the changer queue is frozen, that means we have an active
* device.
*/
if (changer->devq.qfrozen_cnt > 0) {
if (changer->cur_device->device_stats.busy_count > 0) {
changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP;
changer->cur_device->bufs_left =
changer->cur_device->device_stats.busy_count;
if (called_from_timeout) {
changer->long_handle =
timeout(cdrunchangerqueue, changer,
changer_max_busy_seconds * hz);
changer->flags |= CHANGER_TIMEOUT_SCHED;
}
splx(s);
return;
}
/*
* We always need to reset the frozen count and clear the
* active flag.
*/
changer->devq.qfrozen_cnt--;
changer->cur_device->flags &= ~CD_FLAG_ACTIVE;
changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP;
/*
* Check to see whether the current device has any I/O left
* to do. If so, requeue it at the end of the queue. If
* not, there is no need to requeue it.
*/
if (bioq_first(&changer->cur_device->bio_queue) != NULL) {
changer->cur_device->pinfo.generation =
++changer->devq.generation;
camq_insert(&changer->devq,
(cam_pinfo *)changer->cur_device);
}
}
softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD);
changer->cur_device = softc;
changer->devq.qfrozen_cnt++;
softc->flags |= CD_FLAG_ACTIVE;
/* Just in case this device is waiting */
wakeup(&softc->changer);
xpt_schedule(softc->periph, /*priority*/ 1);
/*
* Get rid of any pending timeouts, and set a flag to schedule new
* ones so this device gets its full time quantum.
*/
if (changer->flags & CHANGER_TIMEOUT_SCHED) {
untimeout(cdrunchangerqueue, changer, changer->long_handle);
changer->flags &= ~CHANGER_TIMEOUT_SCHED;
}
if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
untimeout(cdshorttimeout, changer, changer->short_handle);
changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
}
/*
* We need to schedule timeouts, but we only do this after the
* first transaction has completed. This eliminates the changer
* switch time.
*/
changer->flags |= CHANGER_NEED_TIMEOUT;
splx(s);
}
static void
cdchangerschedule(struct cd_softc *softc)
{
struct cdchanger *changer;
int s;
s = splsoftcam();
changer = softc->changer;
/*
* If this is a changer, and this is the current device,
* and this device has at least the minimum time quantum to
* run, see if we can switch it out.
*/
if ((softc->flags & CD_FLAG_ACTIVE)
&& ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0)
&& ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) {
/*
* We try three things here. The first is that we
* check to see whether the schedule on completion
* flag is set. If it is, we decrement the number
* of buffers left, and if it's zero, we reschedule.
* Next, we check to see whether the pending buffer
* queue is empty and whether there are no
* outstanding transactions. If so, we reschedule.
* Next, we see if the pending buffer queue is empty.
* If it is, we set the number of buffers left to
* the current active buffer count and set the
* schedule on complete flag.
*/
if (softc->flags & CD_FLAG_SCHED_ON_COMP) {
if (--softc->bufs_left == 0) {
softc->changer->flags |=
CHANGER_MANUAL_CALL;
softc->flags &= ~CD_FLAG_SCHED_ON_COMP;
cdrunchangerqueue(softc->changer);
}
} else if ((bioq_first(&softc->bio_queue) == NULL)
&& (softc->device_stats.busy_count == 0)) {
softc->changer->flags |= CHANGER_MANUAL_CALL;
cdrunchangerqueue(softc->changer);
}
} else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT)
&& (softc->flags & CD_FLAG_ACTIVE)) {
/*
* Now that the first transaction to this
* particular device has completed, we can go ahead
* and schedule our timeouts.
*/
if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) {
changer->long_handle =
timeout(cdrunchangerqueue, changer,
changer_max_busy_seconds * hz);
changer->flags |= CHANGER_TIMEOUT_SCHED;
} else
printf("cdchangerschedule: already have a long"
" timeout!\n");
if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) {
changer->short_handle =
timeout(cdshorttimeout, changer,
changer_min_busy_seconds * hz);
changer->flags |= CHANGER_SHORT_TMOUT_SCHED;
} else
printf("cdchangerschedule: already have a short "
"timeout!\n");
/*
* We just scheduled timeouts, no need to schedule
* more.
*/
changer->flags &= ~CHANGER_NEED_TIMEOUT;
}
splx(s);
}
static int
cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
u_int32_t cam_flags,
u_int32_t sense_flags),
u_int32_t cam_flags, u_int32_t sense_flags)
{
struct cd_softc *softc;
struct cam_periph *periph;
int error;
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct cd_softc *)periph->softc;
error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
&softc->device_stats);
if (softc->flags & CD_FLAG_CHANGER)
cdchangerschedule(softc);
return(error);
}
1998-12-22 20:05:23 +00:00
static union ccb *
cdgetccb(struct cam_periph *periph, u_int32_t priority)
{
struct cd_softc *softc;
int s;
softc = (struct cd_softc *)periph->softc;
if (softc->flags & CD_FLAG_CHANGER) {
s = splsoftcam();
/*
* This should work the first time this device is woken up,
* but just in case it doesn't, we use a while loop.
*/
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
while ((softc->flags & CD_FLAG_ACTIVE) == 0) {
/*
* If this changer isn't already queued, queue it up.
*/
if (softc->pinfo.index == CAM_UNQUEUED_INDEX) {
softc->pinfo.priority = 1;
softc->pinfo.generation =
++softc->changer->devq.generation;
camq_insert(&softc->changer->devq,
(cam_pinfo *)softc);
}
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
if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
&& ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
&& ((softc->changer->flags
& CHANGER_SHORT_TMOUT_SCHED)==0)) {
softc->changer->flags |= CHANGER_MANUAL_CALL;
cdrunchangerqueue(softc->changer);
} else
tsleep(&softc->changer, PRIBIO, "cgticb", 0);
}
splx(s);
}
return(cam_periph_getccb(periph, priority));
}
/*
* Actually translate the requested transfer into one the physical driver
* can understand. The transfer is described by a buf and will include
* only one physical transfer.
*/
static void
cdstrategy(struct bio *bp)
{
struct cam_periph *periph;
struct cd_softc *softc;
u_int unit, part;
int s;
unit = dkunit(bp->bio_dev);
part = dkpart(bp->bio_dev);
periph = cam_extend_get(cdperiphs, unit);
if (periph == NULL) {
biofinish(bp, NULL, ENXIO);
return;
}
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n"));
softc = (struct cd_softc *)periph->softc;
/*
* Mask interrupts so that the pack cannot be invalidated until
* after we are in the queue. Otherwise, we might not properly
* clean up one of the buffers.
*/
s = splbio();
/*
* If the device has been made invalid, error out
*/
if ((softc->flags & CD_FLAG_INVALID)) {
splx(s);
biofinish(bp, NULL, ENXIO);
return;
}
/*
* Place it in the queue of disk activities for this disk
*/
bioqdisksort(&softc->bio_queue, bp);
splx(s);
/*
* Schedule ourselves for performing the work. We do things
* differently for changers.
*/
if ((softc->flags & CD_FLAG_CHANGER) == 0)
xpt_schedule(periph, /* XXX priority */1);
else
cdschedule(periph, /* priority */ 1);
return;
}
static void
cdstart(struct cam_periph *periph, union ccb *start_ccb)
{
struct cd_softc *softc;
struct bio *bp;
struct ccb_scsiio *csio;
struct scsi_read_capacity_data *rcap;
int s;
softc = (struct cd_softc *)periph->softc;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
switch (softc->state) {
case CD_STATE_NORMAL:
{
int oldspl;
s = splbio();
bp = bioq_first(&softc->bio_queue);
if (periph->immediate_priority <= periph->pinfo.priority) {
start_ccb->ccb_h.ccb_state = CD_CCB_WAITING;
SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
periph_links.sle);
periph->immediate_priority = CAM_PRIORITY_NONE;
splx(s);
wakeup(&periph->ccb_list);
} else if (bp == NULL) {
splx(s);
xpt_release_ccb(start_ccb);
} else {
bioq_remove(&softc->bio_queue, bp);
devstat_start_transaction(&softc->device_stats);
scsi_read_write(&start_ccb->csio,
/*retries*/4,
/* cbfcnp */ cddone,
(bp->bio_flags & BIO_ORDERED) != 0 ?
MSG_ORDERED_Q_TAG :
MSG_SIMPLE_Q_TAG,
/* read */bp->bio_cmd == BIO_READ,
/* byte2 */ 0,
/* minimum_cmd_size */ 10,
/* lba */ bp->bio_pblkno,
bp->bio_bcount / softc->params.blksize,
/* data_ptr */ bp->bio_data,
/* dxfer_len */ bp->bio_bcount,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 30000);
start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
/*
* Block out any asyncronous callbacks
* while we touch the pending ccb list.
*/
oldspl = splcam();
LIST_INSERT_HEAD(&softc->pending_ccbs,
&start_ccb->ccb_h, periph_links.le);
splx(oldspl);
/* We expect a unit attention from this device */
if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
softc->flags &= ~CD_FLAG_RETRY_UA;
}
start_ccb->ccb_h.ccb_bp = bp;
bp = bioq_first(&softc->bio_queue);
splx(s);
xpt_action(start_ccb);
}
if (bp != NULL) {
/* Have more work to do, so ensure we stay scheduled */
xpt_schedule(periph, /* XXX priority */1);
}
break;
}
case CD_STATE_PROBE:
{
rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
M_TEMP,
M_NOWAIT);
if (rcap == NULL) {
xpt_print_path(periph->path);
printf("cdstart: Couldn't malloc read_capacity data\n");
/* cd_free_periph??? */
break;
}
csio = &start_ccb->csio;
scsi_read_capacity(csio,
/*retries*/1,
cddone,
MSG_SIMPLE_Q_TAG,
rcap,
SSD_FULL_SIZE,
/*timeout*/20000);
start_ccb->ccb_h.ccb_bp = NULL;
start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
xpt_action(start_ccb);
break;
}
}
}
static void
cddone(struct cam_periph *periph, union ccb *done_ccb)
{
struct cd_softc *softc;
struct ccb_scsiio *csio;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
softc = (struct cd_softc *)periph->softc;
csio = &done_ccb->csio;
switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
case CD_CCB_BUFFER_IO:
{
struct bio *bp;
int error;
int oldspl;
bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
error = 0;
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
int sf;
if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
sf = SF_RETRY_UA;
else
sf = 0;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cderror(done_ccb, CAM_RETRY_SELTO, sf);
if (error == ERESTART) {
/*
* A retry was scheuled, so
* just return.
*/
return;
}
}
if (error != 0) {
int s;
struct bio *q_bp;
xpt_print_path(periph->path);
printf("cddone: got error %#x back\n", error);
s = splbio();
while ((q_bp = bioq_first(&softc->bio_queue)) != NULL) {
bioq_remove(&softc->bio_queue, q_bp);
q_bp->bio_resid = q_bp->bio_bcount;
biofinish(q_bp, NULL, EIO);
}
splx(s);
bp->bio_resid = bp->bio_bcount;
bp->bio_error = error;
bp->bio_flags |= BIO_ERROR;
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
} else {
bp->bio_resid = csio->resid;
bp->bio_error = 0;
if (bp->bio_resid != 0) {
/* Short transfer ??? */
bp->bio_flags |= BIO_ERROR;
}
}
/*
* Block out any asyncronous callbacks
* while we touch the pending ccb list.
*/
oldspl = splcam();
LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
splx(oldspl);
if (softc->flags & CD_FLAG_CHANGER)
cdchangerschedule(softc);
biofinish(bp, &softc->device_stats, 0);
break;
}
case CD_CCB_PROBE:
{
struct scsi_read_capacity_data *rdcap;
char announce_buf[120]; /*
* Currently (9/30/97) the
* longest possible announce
* buffer is 108 bytes, for the
* first error case below.
* That is 39 bytes for the
* basic string, 16 bytes for the
* biggest sense key (hardware
* error), 52 bytes for the
* text of the largest sense
* qualifier valid for a CDROM,
* (0x72, 0x03 or 0x04,
* 0x03), and one byte for the
* null terminating character.
* To allow for longer strings,
* the announce buffer is 120
* bytes.
*/
struct cd_params *cdp;
cdp = &softc->params;
rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
cdp->blksize = scsi_4btoul (rdcap->length);
if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
snprintf(announce_buf, sizeof(announce_buf),
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
"cd present [%lu x %lu byte records]",
cdp->disksize, (u_long)cdp->blksize);
} else {
int error;
/*
* Retry any UNIT ATTENTION type errors. They
* are expected at boot.
*/
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cderror(done_ccb, CAM_RETRY_SELTO,
SF_RETRY_UA | SF_NO_PRINT);
if (error == ERESTART) {
/*
* A retry was scheuled, so
* just return.
*/
return;
} else if (error != 0) {
struct scsi_sense_data *sense;
int asc, ascq;
int sense_key, error_code;
int have_sense;
cam_status status;
struct ccb_getdev cgd;
/* Don't wedge this device's queue */
cam_release_devq(done_ccb->ccb_h.path,
/*relsim_flags*/0,
/*reduction*/0,
/*timeout*/0,
/*getcount_only*/0);
status = done_ccb->ccb_h.status;
xpt_setup_ccb(&cgd.ccb_h,
done_ccb->ccb_h.path,
/* priority */ 1);
cgd.ccb_h.func_code = XPT_GDEV_TYPE;
xpt_action((union ccb *)&cgd);
if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
|| ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
|| ((status & CAM_AUTOSNS_VALID) == 0))
have_sense = FALSE;
else
have_sense = TRUE;
if (have_sense) {
sense = &csio->sense_data;
scsi_extract_sense(sense, &error_code,
&sense_key,
&asc, &ascq);
}
/*
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
* Attach to anything that claims to be a
* CDROM or WORM device, as long as it
* doesn't return a "Logical unit not
* supported" (0x25) error.
*/
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
if ((have_sense) && (asc != 0x25)
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
&& (error_code == SSD_CURRENT_ERROR)) {
const char *sense_key_desc;
const char *asc_desc;
scsi_sense_desc(sense_key, asc, ascq,
&cgd.inq_data,
&sense_key_desc,
&asc_desc);
snprintf(announce_buf,
sizeof(announce_buf),
"Attempt to query device "
"size failed: %s, %s",
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
sense_key_desc,
asc_desc);
} else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
/*
* We only print out an error for
* CDROM type devices. For WORM
* devices, we don't print out an
* error since a few WORM devices
* don't support CDROM commands.
* If we have sense information, go
* ahead and print it out.
* Otherwise, just say that we
* couldn't attach.
*/
/*
* Just print out the error, not
* the full probe message, when we
* don't attach.
*/
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
if (have_sense)
scsi_sense_print(
&done_ccb->csio);
else {
xpt_print_path(periph->path);
printf("got CAM status %#x\n",
done_ccb->ccb_h.status);
}
xpt_print_path(periph->path);
printf("fatal error, failed"
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
" to attach to device\n");
/*
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
* Invalidate this peripheral.
*/
cam_periph_invalidate(periph);
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
announce_buf[0] = '\0';
} else {
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
/*
Fix a problem with the way we handled device invalidation when attaching to a device failed. In theory, the same steps that happen when we get an AC_LOST_DEVICE async notification should have been taken when a driver fails to attach. In practice, that wasn't the case. This only affected the da, cd and ch drivers, but the fix affects all peripheral drivers. There were several possible problems: - In the da driver, we didn't remove the peripheral's softc from the da driver's linked list of softcs. Once the peripheral and softc got removed, we'd get a kernel panic the next time the timeout routine called dasendorderedtag(). - In the da, cd and possibly ch drivers, we didn't remove the peripheral's devstat structure from the devstat queue. Once the peripheral and softc were removed, this could cause a panic if anyone tried to access device statistics. (one component of the linked list wouldn't exist anymore) - In the cd driver, we didn't take the peripheral off the changer run queue if it was scheduled to run. In practice, it's highly unlikely, and maybe impossible that the peripheral would have been on the changer run queue at that stage of the probe process. The fix is: - Add a new peripheral callback function (the "oninvalidate" function) that is called the first time cam_periph_invalidate() is called for a peripheral. - Create new foooninvalidate() routines for each peripheral driver. This routine is always called at splsoftcam(), and contains all the stuff that used to be in the AC_LOST_DEVICE case of the async callback handler. - Move the devstat cleanup call to the destructor/cleanup routines, since some of the drivers do I/O in their close routines. - Make sure that when we're flushing the buffer queue, we traverse it at splbio(). - Add a check for the invalid flag in the pt driver's open routine. Reviewed by: gibbs
1998-10-22 22:16:56 +00:00
* Invalidate this peripheral.
*/
cam_periph_invalidate(periph);
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
announce_buf[0] = '\0';
}
}
}
free(rdcap, M_TEMP);
if (announce_buf[0] != '\0') {
xpt_announce_periph(periph, announce_buf);
if (softc->flags & CD_FLAG_CHANGER)
cdchangerschedule(softc);
}
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
softc->state = CD_STATE_NORMAL;
/*
* Since our peripheral may be invalidated by an error
* above or an external event, we must release our CCB
* before releasing the probe lock on the peripheral.
* The peripheral will only go away once the last lock
* is removed, and we need it around for the CCB release
* operation.
*/
xpt_release_ccb(done_ccb);
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
cam_periph_unlock(periph);
return;
}
case CD_CCB_WAITING:
{
/* Caller will release the CCB */
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
("trying to wakeup ccbwait\n"));
wakeup(&done_ccb->ccb_h.cbfcnp);
return;
}
default:
break;
}
xpt_release_ccb(done_ccb);
}
static int
cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
{
struct cam_periph *periph;
struct cd_softc *softc;
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
int error, unit;
unit = dkunit(dev);
periph = cam_extend_get(cdperiphs, unit);
if (periph == NULL)
return(ENXIO);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n"));
softc = (struct cd_softc *)periph->softc;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
("trying to do ioctl %#lx\n", cmd));
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
error = cam_periph_lock(periph, PRIBIO | PCATCH);
if (error != 0)
return(error);
switch (cmd) {
case CDIOCPLAYTRACKS:
{
struct ioc_play_track *args
= (struct ioc_play_track *) addr;
struct cd_mode_data *data;
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCPLAYTRACKS\n"));
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.flags &= ~CD_PA_SOTC;
data->page.audio.flags |= CD_PA_IMMED;
error = cdsetmode(periph, data);
free(data, M_TEMP);
if (error)
break;
if (softc->quirks & CD_Q_BCD_TRACKS) {
args->start_track = bin2bcd(args->start_track);
args->end_track = bin2bcd(args->end_track);
}
error = cdplaytracks(periph,
args->start_track,
args->start_index,
args->end_track,
args->end_index);
}
break;
case CDIOCPLAYMSF:
{
struct ioc_play_msf *args
= (struct ioc_play_msf *) addr;
struct cd_mode_data *data;
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCPLAYMSF\n"));
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.flags &= ~CD_PA_SOTC;
data->page.audio.flags |= CD_PA_IMMED;
error = cdsetmode(periph, data);
free(data, M_TEMP);
if (error)
break;
error = cdplaymsf(periph,
args->start_m,
args->start_s,
args->start_f,
args->end_m,
args->end_s,
args->end_f);
}
break;
case CDIOCPLAYBLOCKS:
{
struct ioc_play_blocks *args
= (struct ioc_play_blocks *) addr;
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCPLAYBLOCKS\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.flags &= ~CD_PA_SOTC;
data->page.audio.flags |= CD_PA_IMMED;
error = cdsetmode(periph, data);
free(data, M_TEMP);
if (error)
break;
error = cdplay(periph, args->blk, args->len);
}
break;
case CDIOCREADSUBCHANNEL:
{
struct ioc_read_subchannel *args
= (struct ioc_read_subchannel *) addr;
struct cd_sub_channel_info *data;
u_int32_t len = args->data_len;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCREADSUBCHANNEL\n"));
data = malloc(sizeof(struct cd_sub_channel_info),
M_TEMP, M_WAITOK);
if ((len > sizeof(struct cd_sub_channel_info)) ||
(len < sizeof(struct cd_sub_channel_header))) {
printf(
"scsi_cd: cdioctl: "
"cdioreadsubchannel: error, len=%d\n",
len);
error = EINVAL;
free(data, M_TEMP);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS)
args->track = bin2bcd(args->track);
error = cdreadsubchannel(periph, args->address_format,
args->data_format, args->track, data, len);
if (error) {
free(data, M_TEMP);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS)
data->what.track_info.track_number =
bcd2bin(data->what.track_info.track_number);
len = min(len, ((data->header.data_len[0] << 8) +
data->header.data_len[1] +
sizeof(struct cd_sub_channel_header)));
if (copyout(data, args->data, len) != 0) {
error = EFAULT;
}
free(data, M_TEMP);
}
break;
case CDIOREADTOCHEADER:
{
struct ioc_toc_header *th;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOREADTOCHEADER\n"));
th = malloc(sizeof(struct ioc_toc_header), M_TEMP,
M_WAITOK);
error = cdreadtoc(periph, 0, 0,
(struct cd_toc_entry *)th,
sizeof (*th));
if (error) {
free(th, M_TEMP);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
NTOHS(th->len);
bcopy(th, addr, sizeof(*th));
free(th, M_TEMP);
}
break;
case CDIOREADTOCENTRYS:
{
typedef struct {
struct ioc_toc_header header;
struct cd_toc_entry entries[100];
} data_t;
typedef struct {
struct ioc_toc_header header;
struct cd_toc_entry entry;
} lead_t;
data_t *data;
lead_t *lead;
struct ioc_read_toc_entry *te =
(struct ioc_read_toc_entry *) addr;
struct ioc_toc_header *th;
u_int32_t len, readlen, idx, num;
u_int32_t starting_track = te->starting_track;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOREADTOCENTRYS\n"));
data = malloc(sizeof(data_t), M_TEMP, M_WAITOK);
lead = malloc(sizeof(lead_t), M_TEMP, M_WAITOK);
if (te->data_len < sizeof(struct cd_toc_entry)
|| (te->data_len % sizeof(struct cd_toc_entry)) != 0
|| (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT)) {
error = EINVAL;
printf("scsi_cd: error in readtocentries, "
"returning EINVAL\n");
free(data, M_TEMP);
free(lead, M_TEMP);
break;
}
th = &data->header;
error = cdreadtoc(periph, 0, 0,
(struct cd_toc_entry *)th,
sizeof (*th));
if (error) {
free(data, M_TEMP);
free(lead, M_TEMP);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
if (starting_track == 0)
starting_track = th->starting_track;
else if (starting_track == LEADOUT)
starting_track = th->ending_track + 1;
else if (starting_track < th->starting_track ||
starting_track > th->ending_track + 1) {
printf("scsi_cd: error in readtocentries, "
"returning EINVAL\n");
free(data, M_TEMP);
free(lead, M_TEMP);
error = EINVAL;
break;
}
/* calculate reading length without leadout entry */
readlen = (th->ending_track - starting_track + 1) *
sizeof(struct cd_toc_entry);
/* and with leadout entry */
len = readlen + sizeof(struct cd_toc_entry);
if (te->data_len < len) {
len = te->data_len;
if (readlen > len)
readlen = len;
}
if (len > sizeof(data->entries)) {
printf("scsi_cd: error in readtocentries, "
"returning EINVAL\n");
error = EINVAL;
free(data, M_TEMP);
free(lead, M_TEMP);
break;
}
num = len / sizeof(struct cd_toc_entry);
if (readlen > 0) {
error = cdreadtoc(periph, te->address_format,
starting_track,
(struct cd_toc_entry *)data,
readlen + sizeof (*th));
if (error) {
free(data, M_TEMP);
free(lead, M_TEMP);
break;
}
}
/* make leadout entry if needed */
idx = starting_track + num - 1;
if (softc->quirks & CD_Q_BCD_TRACKS)
th->ending_track = bcd2bin(th->ending_track);
if (idx == th->ending_track + 1) {
error = cdreadtoc(periph, te->address_format,
LEADOUT,
(struct cd_toc_entry *)lead,
sizeof(*lead));
if (error) {
free(data, M_TEMP);
free(lead, M_TEMP);
break;
}
data->entries[idx - starting_track] =
lead->entry;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
for (idx = 0; idx < num - 1; idx++) {
data->entries[idx].track =
bcd2bin(data->entries[idx].track);
}
}
error = copyout(data->entries, te->data, len);
free(data, M_TEMP);
free(lead, M_TEMP);
}
break;
case CDIOREADTOCENTRY:
{
/* yeah yeah, this is ugly */
typedef struct {
struct ioc_toc_header header;
struct cd_toc_entry entry;
} data_t;
data_t *data;
struct ioc_read_toc_single_entry *te =
(struct ioc_read_toc_single_entry *) addr;
struct ioc_toc_header *th;
u_int32_t track;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOREADTOCENTRY\n"));
data = malloc(sizeof(data_t), M_TEMP, M_WAITOK);
if (te->address_format != CD_MSF_FORMAT
&& te->address_format != CD_LBA_FORMAT) {
printf("error in readtocentry, "
" returning EINVAL\n");
free(data, M_TEMP);
error = EINVAL;
break;
}
th = &data->header;
error = cdreadtoc(periph, 0, 0,
(struct cd_toc_entry *)th,
sizeof (*th));
if (error) {
free(data, M_TEMP);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
track = te->track;
if (track == 0)
track = th->starting_track;
else if (track == LEADOUT)
/* OK */;
else if (track < th->starting_track ||
track > th->ending_track + 1) {
printf("error in readtocentry, "
" returning EINVAL\n");
free(data, M_TEMP);
error = EINVAL;
break;
}
error = cdreadtoc(periph, te->address_format, track,
(struct cd_toc_entry *)data,
sizeof(data_t));
if (error) {
free(data, M_TEMP);
break;
}
if (softc->quirks & CD_Q_BCD_TRACKS)
data->entry.track = bcd2bin(data->entry.track);
bcopy(&data->entry, &te->entry,
sizeof(struct cd_toc_entry));
free(data, M_TEMP);
}
break;
case CDIOCSETPATCH:
{
struct ioc_patch *arg = (struct ioc_patch *) addr;
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETPATCH\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels =
arg->patch[0];
data->page.audio.port[RIGHT_PORT].channels =
arg->patch[1];
data->page.audio.port[2].channels = arg->patch[2];
data->page.audio.port[3].channels = arg->patch[3];
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCGETVOL:
{
struct ioc_vol *arg = (struct ioc_vol *) addr;
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCGETVOL\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
arg->vol[LEFT_PORT] =
data->page.audio.port[LEFT_PORT].volume;
arg->vol[RIGHT_PORT] =
data->page.audio.port[RIGHT_PORT].volume;
arg->vol[2] = data->page.audio.port[2].volume;
arg->vol[3] = data->page.audio.port[3].volume;
free(data, M_TEMP);
}
break;
case CDIOCSETVOL:
{
struct ioc_vol *arg = (struct ioc_vol *) addr;
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETVOL\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels = CHANNEL_0;
data->page.audio.port[LEFT_PORT].volume =
arg->vol[LEFT_PORT];
data->page.audio.port[RIGHT_PORT].channels = CHANNEL_1;
data->page.audio.port[RIGHT_PORT].volume =
arg->vol[RIGHT_PORT];
data->page.audio.port[2].volume = arg->vol[2];
data->page.audio.port[3].volume = arg->vol[3];
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCSETMONO:
{
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETMONO\n"));
data = malloc(sizeof(struct cd_mode_data),
M_TEMP, M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels =
LEFT_CHANNEL | RIGHT_CHANNEL;
data->page.audio.port[RIGHT_PORT].channels =
LEFT_CHANNEL | RIGHT_CHANNEL;
data->page.audio.port[2].channels = 0;
data->page.audio.port[3].channels = 0;
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCSETSTEREO:
{
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETSTEREO\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels =
LEFT_CHANNEL;
data->page.audio.port[RIGHT_PORT].channels =
RIGHT_CHANNEL;
data->page.audio.port[2].channels = 0;
data->page.audio.port[3].channels = 0;
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCSETMUTE:
{
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETMUTE\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels = 0;
data->page.audio.port[RIGHT_PORT].channels = 0;
data->page.audio.port[2].channels = 0;
data->page.audio.port[3].channels = 0;
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCSETLEFT:
{
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETLEFT\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels =
LEFT_CHANNEL;
data->page.audio.port[RIGHT_PORT].channels =
LEFT_CHANNEL;
data->page.audio.port[2].channels = 0;
data->page.audio.port[3].channels = 0;
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCSETRIGHT:
{
struct cd_mode_data *data;
CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
("trying to do CDIOCSETRIGHT\n"));
data = malloc(sizeof(struct cd_mode_data), M_TEMP,
M_WAITOK);
error = cdgetmode(periph, data, AUDIO_PAGE);
if (error) {
free(data, M_TEMP);
break;
}
data->page.audio.port[LEFT_PORT].channels =
RIGHT_CHANNEL;
data->page.audio.port[RIGHT_PORT].channels =
RIGHT_CHANNEL;
data->page.audio.port[2].channels = 0;
data->page.audio.port[3].channels = 0;
error = cdsetmode(periph, data);
free(data, M_TEMP);
}
break;
case CDIOCRESUME:
error = cdpause(periph, 1);
break;
case CDIOCPAUSE:
error = cdpause(periph, 0);
break;
case CDIOCSTART:
error = cdstartunit(periph);
break;
case CDIOCSTOP:
error = cdstopunit(periph, 0);
break;
case CDIOCEJECT:
error = cdstopunit(periph, 1);
break;
case CDIOCALLOW:
cdprevent(periph, PR_ALLOW);
break;
case CDIOCPREVENT:
cdprevent(periph, PR_PREVENT);
break;
case CDIOCSETDEBUG:
/* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
error = ENOTTY;
break;
case CDIOCCLRDEBUG:
/* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
error = ENOTTY;
break;
case CDIOCRESET:
/* return (cd_reset(periph)); */
error = ENOTTY;
break;
case DVDIOCSENDKEY:
case DVDIOCREPORTKEY: {
struct dvd_authinfo *authinfo;
authinfo = (struct dvd_authinfo *)addr;
if (cmd == DVDIOCREPORTKEY)
error = cdreportkey(periph, authinfo);
else
error = cdsendkey(periph, authinfo);
break;
}
case DVDIOCREADSTRUCTURE: {
struct dvd_struct *dvdstruct;
dvdstruct = (struct dvd_struct *)addr;
error = cdreaddvdstructure(periph, dvdstruct);
break;
}
default:
error = cam_periph_ioctl(periph, cmd, addr, cderror);
break;
}
Some fixes for the CD and DA drivers from bde. (and some of my own as well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
1998-10-07 02:57:57 +00:00
cam_periph_unlock(periph);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
return (error);
}
static void
cdprevent(struct cam_periph *periph, int action)
{
union ccb *ccb;
struct cd_softc *softc;
int error;
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
softc = (struct cd_softc *)periph->softc;
if (((action == PR_ALLOW)
&& (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
|| ((action == PR_PREVENT)
&& (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
return;
}
ccb = cdgetccb(periph, /* priority */ 1);
scsi_prevent(&ccb->csio,
/*retries*/ 1,
cddone,
MSG_SIMPLE_Q_TAG,
action,
SSD_FULL_SIZE,
/* timeout */60000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
xpt_release_ccb(ccb);
if (error == 0) {
if (action == PR_ALLOW)
softc->flags &= ~CD_FLAG_DISC_LOCKED;
else
softc->flags |= CD_FLAG_DISC_LOCKED;
}
}
static int
cdsize(dev_t dev, u_int32_t *size)
{
struct cam_periph *periph;
struct cd_softc *softc;
union ccb *ccb;
struct scsi_read_capacity_data *rcap_buf;
int error;
periph = cam_extend_get(cdperiphs, dkunit(dev));
if (periph == NULL)
return (ENXIO);
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
softc = (struct cd_softc *)periph->softc;
ccb = cdgetccb(periph, /* priority */ 1);
rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
M_TEMP, M_WAITOK);
scsi_read_capacity(&ccb->csio,
/*retries*/ 1,
cddone,
MSG_SIMPLE_Q_TAG,
rcap_buf,
SSD_FULL_SIZE,
/* timeout */20000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA|SF_NO_PRINT);
xpt_release_ccb(ccb);
softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
softc->params.blksize = scsi_4btoul(rcap_buf->length);
/*
* SCSI-3 mandates that the reported blocksize shall be 2048.
* Older drives sometimes report funny values, trim it down to
* 2048, or other parts of the kernel will get confused.
*
* XXX we leave drives alone that might report 512 bytes, as
* well as drives reporting more weird sizes like perhaps 4K.
*/
if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
softc->params.blksize = 2048;
free(rcap_buf, M_TEMP);
*size = softc->params.disksize;
return (error);
}
/*
* The idea here is to try to figure out whether the first track is data or
* audio. If it is data, we can at least attempt to read a disklabel off
* the first sector of the disk. If it is audio, there won't be a
* disklabel.
*
* This routine returns 0 if the first track is data, and non-zero if there
* is an error or the first track is audio. (If either non-zero case, we
* should not attempt to read the disklabel.)
*/
static int
cdfirsttrackisdata(struct cam_periph *periph)
{
struct cdtocdata {
struct ioc_toc_header header;
struct cd_toc_entry entries[100];
};
struct cd_softc *softc;
struct ioc_toc_header *th;
struct cdtocdata *data;
int num_entries, i;
int error, first_track_audio;
error = 0;
first_track_audio = -1;
softc = (struct cd_softc *)periph->softc;
data = malloc(sizeof(struct cdtocdata), M_TEMP, M_WAITOK);
th = &data->header;
error = cdreadtoc(periph, 0, 0, (struct cd_toc_entry *)data,
sizeof(*data));
if (error)
goto bailout;
if (softc->quirks & CD_Q_BCD_TRACKS) {
/* we are going to have to convert the BCD
* encoding on the cd to what is expected
*/
th->starting_track =
bcd2bin(th->starting_track);
th->ending_track = bcd2bin(th->ending_track);
}
th->len = scsi_2btoul((u_int8_t *)&th->len);
if ((th->len - 2) > 0)
num_entries = (th->len - 2) / sizeof(struct cd_toc_entry);
else
num_entries = 0;
for (i = 0; i < num_entries; i++) {
if (data->entries[i].track == th->starting_track) {
if (data->entries[i].control & 0x4)
first_track_audio = 0;
else
first_track_audio = 1;
break;
}
}
if (first_track_audio == -1)
error = ENOENT;
else if (first_track_audio == 1)
error = EINVAL;
else
error = 0;
bailout:
free(data, M_TEMP);
return(error);
}
static int
cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
{
struct cd_softc *softc;
struct cam_periph *periph;
periph = xpt_path_periph(ccb->ccb_h.path);
softc = (struct cd_softc *)periph->softc;
/*
* XXX
* Until we have a better way of doing pack validation,
* don't treat UAs as errors.
*/
sense_flags |= SF_RETRY_UA;
return (cam_periph_error(ccb, cam_flags, sense_flags,
&softc->saved_ccb));
}
/*
* Read table of contents
*/
static int
cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
struct cd_toc_entry *data, u_int32_t len)
{
struct scsi_read_toc *scsi_cmd;
u_int32_t ntoc;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
ntoc = len;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_IN,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ (u_int8_t *)data,
/* dxfer_len */ len,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_read_toc),
/* timeout */ 50000);
scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
if (mode == CD_MSF_FORMAT)
scsi_cmd->byte2 |= CD_MSF;
scsi_cmd->from_track = start;
/* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */
scsi_cmd->data_len[0] = (ntoc) >> 8;
scsi_cmd->data_len[1] = (ntoc) & 0xff;
scsi_cmd->op_code = READ_TOC;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
u_int32_t format, int track,
struct cd_sub_channel_info *data, u_int32_t len)
{
struct scsi_read_subchannel *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_IN,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ (u_int8_t *)data,
/* dxfer_len */ len,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_read_subchannel),
/* timeout */ 50000);
scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = READ_SUBCHANNEL;
if (mode == CD_MSF_FORMAT)
scsi_cmd->byte1 |= CD_MSF;
scsi_cmd->byte2 = SRS_SUBQ;
scsi_cmd->subchan_format = format;
scsi_cmd->track = track;
scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
scsi_cmd->control = 0;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdgetmode(struct cam_periph *periph, struct cd_mode_data *data, u_int32_t page)
{
struct scsi_mode_sense_6 *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
bzero(data, sizeof(*data));
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_IN,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ (u_int8_t *)data,
/* dxfer_len */ sizeof(*data),
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_mode_sense_6),
/* timeout */ 50000);
scsi_cmd = (struct scsi_mode_sense_6 *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->page = page;
scsi_cmd->length = sizeof(*data) & 0xff;
scsi_cmd->opcode = MODE_SENSE;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdsetmode(struct cam_periph *periph, struct cd_mode_data *data)
{
struct scsi_mode_select_6 *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
error = 0;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_OUT,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ (u_int8_t *)data,
/* dxfer_len */ sizeof(*data),
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_mode_select_6),
/* timeout */ 50000);
scsi_cmd = (struct scsi_mode_select_6 *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = MODE_SELECT;
scsi_cmd->byte2 |= SMS_PF;
scsi_cmd->length = sizeof(*data) & 0xff;
data->header.data_length = 0;
/*
* SONY drives do not allow a mode select with a medium_type
* value that has just been returned by a mode sense; use a
* medium_type of 0 (Default) instead.
*/
data->header.medium_type = 0;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
{
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
u_int8_t cdb_len;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
/*
* Use the smallest possible command to perform the operation.
*/
if ((len & 0xffff0000) == 0) {
/*
* We can fit in a 10 byte cdb.
*/
struct scsi_play_10 *scsi_cmd;
scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_10;
scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
cdb_len = sizeof(*scsi_cmd);
} else {
struct scsi_play_12 *scsi_cmd;
scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_12;
scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
cdb_len = sizeof(*scsi_cmd);
}
cam_fill_csio(csio,
/*retries*/2,
cddone,
/*flags*/CAM_DIR_NONE,
MSG_SIMPLE_Q_TAG,
/*dataptr*/NULL,
/*datalen*/0,
/*sense_len*/SSD_FULL_SIZE,
cdb_len,
/*timeout*/50 * 1000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
{
struct scsi_play_msf *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_play_msf),
/* timeout */ 50000);
scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_MSF;
scsi_cmd->start_m = startm;
scsi_cmd->start_s = starts;
scsi_cmd->start_f = startf;
scsi_cmd->end_m = endm;
scsi_cmd->end_s = ends;
scsi_cmd->end_f = endf;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
u_int32_t etrack, u_int32_t eindex)
{
struct scsi_play_track *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_play_track),
/* timeout */ 50000);
scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PLAY_TRACK;
scsi_cmd->start_track = strack;
scsi_cmd->start_index = sindex;
scsi_cmd->end_track = etrack;
scsi_cmd->end_index = eindex;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdpause(struct cam_periph *periph, u_int32_t go)
{
struct scsi_pause *scsi_cmd;
struct ccb_scsiio *csio;
union ccb *ccb;
int error;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
csio = &ccb->csio;
cam_fill_csio(csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* flags */ CAM_DIR_NONE,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* data_ptr */ NULL,
/* dxfer_len */ 0,
/* sense_len */ SSD_FULL_SIZE,
sizeof(struct scsi_pause),
/* timeout */ 50000);
scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
bzero (scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->op_code = PAUSE;
scsi_cmd->resume = go;
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdstartunit(struct cam_periph *periph)
{
union ccb *ccb;
int error;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
scsi_start_stop(&ccb->csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* start */ TRUE,
/* load_eject */ FALSE,
/* immediate */ FALSE,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdstopunit(struct cam_periph *periph, u_int32_t eject)
{
union ccb *ccb;
int error;
error = 0;
ccb = cdgetccb(periph, /* priority */ 1);
scsi_start_stop(&ccb->csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* start */ FALSE,
/* load_eject */ eject,
/* immediate */ FALSE,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
xpt_release_ccb(ccb);
return(error);
}
static int
cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
{
union ccb *ccb;
u_int8_t *databuf;
u_int32_t lba;
int error;
int length;
error = 0;
databuf = NULL;
lba = 0;
ccb = cdgetccb(periph, /* priority */ 1);
switch (authinfo->format) {
case DVD_REPORT_AGID:
length = sizeof(struct scsi_report_key_data_agid);
break;
case DVD_REPORT_CHALLENGE:
length = sizeof(struct scsi_report_key_data_challenge);
break;
case DVD_REPORT_KEY1:
length = sizeof(struct scsi_report_key_data_key1_key2);
break;
case DVD_REPORT_TITLE_KEY:
length = sizeof(struct scsi_report_key_data_title);
/* The lba field is only set for the title key */
lba = authinfo->lba;
break;
case DVD_REPORT_ASF:
length = sizeof(struct scsi_report_key_data_asf);
break;
case DVD_REPORT_RPC:
length = sizeof(struct scsi_report_key_data_rpc);
break;
case DVD_INVALIDATE_AGID:
length = 0;
break;
default:
error = EINVAL;
goto bailout;
break; /* NOTREACHED */
}
if (length != 0) {
databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
} else
databuf = NULL;
scsi_report_key(&ccb->csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* lba */ lba,
/* agid */ authinfo->agid,
/* key_format */ authinfo->format,
/* data_ptr */ databuf,
/* dxfer_len */ length,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
if (error != 0)
goto bailout;
if (ccb->csio.resid != 0) {
xpt_print_path(periph->path);
printf("warning, residual for report key command is %d\n",
ccb->csio.resid);
}
switch(authinfo->format) {
case DVD_REPORT_AGID: {
struct scsi_report_key_data_agid *agid_data;
agid_data = (struct scsi_report_key_data_agid *)databuf;
authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
RKD_AGID_SHIFT;
break;
}
case DVD_REPORT_CHALLENGE: {
struct scsi_report_key_data_challenge *chal_data;
chal_data = (struct scsi_report_key_data_challenge *)databuf;
bcopy(chal_data->challenge_key, authinfo->keychal,
min(sizeof(chal_data->challenge_key),
sizeof(authinfo->keychal)));
break;
}
case DVD_REPORT_KEY1: {
struct scsi_report_key_data_key1_key2 *key1_data;
key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
bcopy(key1_data->key1, authinfo->keychal,
min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
break;
}
case DVD_REPORT_TITLE_KEY: {
struct scsi_report_key_data_title *title_data;
title_data = (struct scsi_report_key_data_title *)databuf;
authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
RKD_TITLE_CPM_SHIFT;
authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
RKD_TITLE_CP_SEC_SHIFT;
authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
RKD_TITLE_CMGS_SHIFT;
bcopy(title_data->title_key, authinfo->keychal,
min(sizeof(title_data->title_key),
sizeof(authinfo->keychal)));
break;
}
case DVD_REPORT_ASF: {
struct scsi_report_key_data_asf *asf_data;
asf_data = (struct scsi_report_key_data_asf *)databuf;
authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
break;
}
case DVD_REPORT_RPC: {
struct scsi_report_key_data_rpc *rpc_data;
rpc_data = (struct scsi_report_key_data_rpc *)databuf;
authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
RKD_RPC_TYPE_SHIFT;
authinfo->vend_rsts =
(rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
RKD_RPC_VENDOR_RESET_SHIFT;
authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
authinfo->region = rpc_data->region_mask;
authinfo->rpc_scheme = rpc_data->rpc_scheme1;
break;
}
case DVD_INVALIDATE_AGID:
break;
default:
/* This should be impossible, since we checked above */
error = EINVAL;
goto bailout;
break; /* NOTREACHED */
}
bailout:
if (databuf != NULL)
free(databuf, M_DEVBUF);
xpt_release_ccb(ccb);
return(error);
}
static int
cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
{
union ccb *ccb;
u_int8_t *databuf;
int length;
int error;
error = 0;
databuf = NULL;
ccb = cdgetccb(periph, /* priority */ 1);
switch(authinfo->format) {
case DVD_SEND_CHALLENGE: {
struct scsi_report_key_data_challenge *challenge_data;
length = sizeof(*challenge_data);
challenge_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
databuf = (u_int8_t *)challenge_data;
scsi_ulto2b(length - sizeof(challenge_data->data_len),
challenge_data->data_len);
bcopy(authinfo->keychal, challenge_data->challenge_key,
min(sizeof(authinfo->keychal),
sizeof(challenge_data->challenge_key)));
break;
}
case DVD_SEND_KEY2: {
struct scsi_report_key_data_key1_key2 *key2_data;
length = sizeof(*key2_data);
key2_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
databuf = (u_int8_t *)key2_data;
scsi_ulto2b(length - sizeof(key2_data->data_len),
key2_data->data_len);
bcopy(authinfo->keychal, key2_data->key1,
min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
break;
}
case DVD_SEND_RPC: {
struct scsi_send_key_data_rpc *rpc_data;
length = sizeof(*rpc_data);
rpc_data = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
databuf = (u_int8_t *)rpc_data;
scsi_ulto2b(length - sizeof(rpc_data->data_len),
rpc_data->data_len);
rpc_data->region_code = authinfo->region;
break;
}
default:
error = EINVAL;
goto bailout;
break; /* NOTREACHED */
}
scsi_send_key(&ccb->csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* agid */ authinfo->agid,
/* key_format */ authinfo->format,
/* data_ptr */ databuf,
/* dxfer_len */ length,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
bailout:
if (databuf != NULL)
free(databuf, M_DEVBUF);
xpt_release_ccb(ccb);
return(error);
}
static int
cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
{
union ccb *ccb;
u_int8_t *databuf;
u_int32_t address;
int error;
int length;
error = 0;
databuf = NULL;
/* The address is reserved for many of the formats */
address = 0;
ccb = cdgetccb(periph, /* priority */ 1);
switch(dvdstruct->format) {
case DVD_STRUCT_PHYSICAL:
length = sizeof(struct scsi_read_dvd_struct_data_physical);
break;
case DVD_STRUCT_COPYRIGHT:
length = sizeof(struct scsi_read_dvd_struct_data_copyright);
break;
case DVD_STRUCT_DISCKEY:
length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
break;
case DVD_STRUCT_BCA:
length = sizeof(struct scsi_read_dvd_struct_data_bca);
break;
case DVD_STRUCT_MANUFACT:
length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
break;
case DVD_STRUCT_CMI:
error = ENODEV;
goto bailout;
#ifdef notyet
length = sizeof(struct scsi_read_dvd_struct_data_copy_manage);
address = dvdstruct->address;
#endif
break; /* NOTREACHED */
case DVD_STRUCT_PROTDISCID:
length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
break;
case DVD_STRUCT_DISCKEYBLOCK:
length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
break;
case DVD_STRUCT_DDS:
length = sizeof(struct scsi_read_dvd_struct_data_dds);
break;
case DVD_STRUCT_MEDIUM_STAT:
length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
break;
case DVD_STRUCT_SPARE_AREA:
length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
break;
case DVD_STRUCT_RMD_LAST:
error = ENODEV;
goto bailout;
#ifdef notyet
length = sizeof(struct scsi_read_dvd_struct_data_rmd_borderout);
address = dvdstruct->address;
#endif
break; /* NOTREACHED */
case DVD_STRUCT_RMD_RMA:
error = ENODEV;
goto bailout;
#ifdef notyet
length = sizeof(struct scsi_read_dvd_struct_data_rmd);
address = dvdstruct->address;
#endif
break; /* NOTREACHED */
case DVD_STRUCT_PRERECORDED:
length = sizeof(struct scsi_read_dvd_struct_data_leadin);
break;
case DVD_STRUCT_UNIQUEID:
length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
break;
case DVD_STRUCT_DCB:
error = ENODEV;
goto bailout;
#ifdef notyet
length = sizeof(struct scsi_read_dvd_struct_data_dcb);
address = dvdstruct->address;
#endif
break; /* NOTREACHED */
case DVD_STRUCT_LIST:
/*
* This is the maximum allocation length for the READ DVD
* STRUCTURE command. There's nothing in the MMC3 spec
* that indicates a limit in the amount of data that can
* be returned from this call, other than the limits
* imposed by the 2-byte length variables.
*/
length = 65535;
break;
default:
error = EINVAL;
goto bailout;
break; /* NOTREACHED */
}
if (length != 0) {
databuf = malloc(length, M_DEVBUF, M_WAITOK | M_ZERO);
} else
databuf = NULL;
scsi_read_dvd_structure(&ccb->csio,
/* retries */ 1,
/* cbfcnp */ cddone,
/* tag_action */ MSG_SIMPLE_Q_TAG,
/* lba */ address,
/* layer_number */ dvdstruct->layer_num,
/* key_format */ dvdstruct->format,
/* agid */ dvdstruct->agid,
/* data_ptr */ databuf,
/* dxfer_len */ length,
/* sense_len */ SSD_FULL_SIZE,
/* timeout */ 50000);
Rewrite of the CAM error recovery code. Some of the major changes include: - The SCSI error handling portion of cam_periph_error() has been broken out into a number of subfunctions to better modularize the code that handles the hierarchy of SCSI errors. As a result, the code is now much easier to read. - String handling and error printing has been significantly revamped. We now use sbufs to do string formatting instead of using printfs (for the kernel) and snprintf/strncat (for userland) as before. There is a new catchall error printing routine, cam_error_print() and its string-based counterpart, cam_error_string() that allow the kernel and userland applications to pass in a CCB and have errors printed out properly, whether or not they're SCSI errors. Among other things, this helped eliminate a fair amount of duplicate code in camcontrol. We now print out more information than before, including the CAM status and SCSI status and the error recovery action taken to remedy the problem. - sbufs are now available in userland, via libsbuf. This change was necessary since most of the error printing code is shared between libcam and the kernel. - A new transfer settings interface is included in this checkin. This code is #ifdef'ed out, and is primarily intended to aid discussion with HBA driver authors on the final form the interface should take. There is example code in the ahc(4) driver that implements the HBA driver side of the new interface. The new transfer settings code won't be enabled until we're ready to switch all HBA drivers over to the new interface. src/Makefile.inc1, lib/Makefile: Add libsbuf. It must be built before libcam, since libcam uses sbuf routines. libcam/Makefile: libcam now depends on libsbuf. libsbuf/Makefile: Add a makefile for libsbuf. This pulls in the sbuf sources from sys/kern. bsd.libnames.mk: Add LIBSBUF. camcontrol/Makefile: Add -lsbuf. Since camcontrol is statically linked, we can't depend on the dynamic linker to pull in libsbuf. camcontrol.c: Use cam_error_print() instead of checking for CAM_SCSI_STATUS_ERROR on every failed CCB. sbuf.9: Change the prototypes for sbuf_cat() and sbuf_cpy() so that the source string is now a const char *. This is more in line wth the standard system string functions, and helps eliminate warnings when dealing with a const source buffer. Fix a typo. cam.c: Add description strings for the various CAM error status values, as well as routines to look up those strings. Add new cam_error_string() and cam_error_print() routines for userland and the kernel. cam.h: Add a new CAM flag, CAM_RETRY_SELTO. Add enumerated types for the various options available with cam_error_print() and cam_error_string(). cam_ccb.h: Add new transfer negotiation structures/types. Change inq_len in the ccb_getdev structure to be "reserved". This field has never been filled in, and will be removed when we next bump the CAM version. cam_debug.h: Fix typo. cam_periph.c: Modularize cam_periph_error(). The SCSI error handling part of cam_periph_error() is now in camperiphscsistatuserror() and camperiphscsisenseerror(). In cam_periph_lock(), increase the reference count on the periph while we wait for our lock attempt to succeed so that the periph won't go away while we're sleeping. cam_xpt.c: Add new transfer negotiation code. (ifdefed out) Add a new function, xpt_path_string(). This is a string/sbuf analog to xpt_print_path(). scsi_all.c: Revamp string handing and error printing code. We now use sbufs for much of the string formatting code. More of that code is shared between userland the kernel. scsi_all.h: Get rid of SS_TURSTART, it wasn't terribly useful in the first place. Add a new error action, SS_REQSENSE. (Send a request sense and then retry the command.) This is useful when the controller hasn't performed autosense for some reason. Change the default actions around a bit. scsi_cd.c, scsi_da.c, scsi_pt.c, scsi_ses.c: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Selection timeouts shouldn't be covered by a sense flag. scsi_pass.[ch]: SF_RETRY_SELTO -> CAM_RETRY_SELTO. Get rid of the last vestiges of a read/write interface. libkern/bsearch.c, sys/libkern.h, conf/files: Add bsearch.c, which is needed for some of the new table lookup routines. aic7xxx_freebsd.c: Define AHC_NEW_TRAN_SETTINGS if CAM_NEW_TRAN_CODE is defined. sbuf.h, subr_sbuf.c: Add the appropriate #ifdefs so sbufs can compile and run in userland. Change sbuf_printf() to use vsnprintf() instead of kvprintf(), which is only available in the kernel. Change the source string for sbuf_cpy() and sbuf_cat() to be a const char *. Add __BEGIN_DECLS and __END_DECLS around function prototypes since they're now exported to userland. kdump/mkioctls: Include stdio.h before cam.h since cam.h now includes a function with a FILE * argument. Submitted by: gibbs (mostly) Reviewed by: jdp, marcel (libsbuf makefile changes) Reviewed by: des (sbuf changes) Reviewed by: ken
2001-03-27 05:45:52 +00:00
error = cdrunccb(ccb, cderror, /*cam_flags*/CAM_RETRY_SELTO,
/*sense_flags*/SF_RETRY_UA);
if (error != 0)
goto bailout;
switch(dvdstruct->format) {
case DVD_STRUCT_PHYSICAL: {
struct scsi_read_dvd_struct_data_layer_desc *inlayer;
struct dvd_layer *outlayer;
struct scsi_read_dvd_struct_data_physical *phys_data;
phys_data =
(struct scsi_read_dvd_struct_data_physical *)databuf;
inlayer = &phys_data->layer_desc;
outlayer = (struct dvd_layer *)&dvdstruct->data;
dvdstruct->length = sizeof(*inlayer);
outlayer->book_type = (inlayer->book_type_version &
RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
outlayer->book_version = (inlayer->book_type_version &
RDSD_BOOK_VERSION_MASK);
outlayer->disc_size = (inlayer->disc_size_max_rate &
RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
outlayer->max_rate = (inlayer->disc_size_max_rate &
RDSD_MAX_RATE_MASK);
outlayer->nlayers = (inlayer->layer_info &
RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
outlayer->track_path = (inlayer->layer_info &
RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
outlayer->layer_type = (inlayer->layer_info &
RDSD_LAYER_TYPE_MASK);
outlayer->linear_density = (inlayer->density &
RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
outlayer->track_density = (inlayer->density &
RDSD_TRACK_DENSITY_MASK);
outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
RDSD_BCA_SHIFT;
outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
outlayer->end_sector_l0 =
scsi_3btoul(inlayer->end_sector_layer0);
break;
}
case DVD_STRUCT_COPYRIGHT: {
struct scsi_read_dvd_struct_data_copyright *copy_data;
copy_data = (struct scsi_read_dvd_struct_data_copyright *)
databuf;
dvdstruct->cpst = copy_data->cps_type;
dvdstruct->rmi = copy_data->region_info;
dvdstruct->length = 0;
break;
}
default:
/*
* Tell the user what the overall length is, no matter
* what we can actually fit in the data buffer.
*/
dvdstruct->length = length - ccb->csio.resid -
sizeof(struct scsi_read_dvd_struct_data_header);
/*
* But only actually copy out the smaller of what we read
* in or what the structure can take.
*/
bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
dvdstruct->data,
min(sizeof(dvdstruct->data), dvdstruct->length));
break;
}
bailout:
if (databuf != NULL)
free(databuf, M_DEVBUF);
xpt_release_ccb(ccb);
return(error);
}
void
scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_report_key *scsi_cmd;
scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = REPORT_KEY;
scsi_ulto4b(lba, scsi_cmd->lba);
scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
(key_format & RK_KF_KEYFORMAT_MASK);
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
tag_action,
/*data_ptr*/ data_ptr,
/*dxfer_len*/ dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}
void
scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
u_int32_t timeout)
{
struct scsi_send_key *scsi_cmd;
scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = SEND_KEY;
scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
(key_format & RK_KF_KEYFORMAT_MASK);
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ CAM_DIR_OUT,
tag_action,
/*data_ptr*/ data_ptr,
/*dxfer_len*/ dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}
void
scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
void (*cbfcnp)(struct cam_periph *, union ccb *),
u_int8_t tag_action, u_int32_t address,
u_int8_t layer_number, u_int8_t format, u_int8_t agid,
u_int8_t *data_ptr, u_int32_t dxfer_len,
u_int8_t sense_len, u_int32_t timeout)
{
struct scsi_read_dvd_structure *scsi_cmd;
scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
bzero(scsi_cmd, sizeof(*scsi_cmd));
scsi_cmd->opcode = READ_DVD_STRUCTURE;
scsi_ulto4b(address, scsi_cmd->address);
scsi_cmd->layer_number = layer_number;
scsi_cmd->format = format;
scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
/* The AGID is the top two bits of this byte */
scsi_cmd->agid = agid << 6;
cam_fill_csio(csio,
retries,
cbfcnp,
/*flags*/ CAM_DIR_IN,
tag_action,
/*data_ptr*/ data_ptr,
/*dxfer_len*/ dxfer_len,
sense_len,
sizeof(*scsi_cmd),
timeout);
}