2 * Implementation of SCSI Sequential Access Peripheral driver for CAM.
4 * Copyright (c) 1999, 2000 Matthew Jacob
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/param.h>
33 #include <sys/queue.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
38 #include <sys/types.h>
41 #include <sys/limits.h>
42 #include <sys/malloc.h>
47 #include <sys/fcntl.h>
48 #include <sys/devicestat.h>
56 #include <cam/cam_ccb.h>
57 #include <cam/cam_periph.h>
58 #include <cam/cam_xpt_periph.h>
59 #include <cam/cam_debug.h>
61 #include <cam/scsi/scsi_all.h>
62 #include <cam/scsi/scsi_message.h>
63 #include <cam/scsi/scsi_sa.h>
70 #define SA_IO_TIMEOUT 4
72 #ifndef SA_SPACE_TIMEOUT
73 #define SA_SPACE_TIMEOUT 1 * 60
75 #ifndef SA_REWIND_TIMEOUT
76 #define SA_REWIND_TIMEOUT 2 * 60
78 #ifndef SA_ERASE_TIMEOUT
79 #define SA_ERASE_TIMEOUT 4 * 60
82 #define SCSIOP_TIMEOUT (60 * 1000) /* not an option */
84 #define IO_TIMEOUT (SA_IO_TIMEOUT * 60 * 1000)
85 #define REWIND_TIMEOUT (SA_REWIND_TIMEOUT * 60 * 1000)
86 #define ERASE_TIMEOUT (SA_ERASE_TIMEOUT * 60 * 1000)
87 #define SPACE_TIMEOUT (SA_SPACE_TIMEOUT * 60 * 1000)
90 * Additional options that can be set for config: SA_1FM_AT_EOT
93 #ifndef UNUSED_PARAMETER
94 #define UNUSED_PARAMETER(x) x = x
98 if (((ccb)->ccb_h.status & CAM_DEV_QFRZN) != 0) \
99 cam_release_devq((ccb)->ccb_h.path, 0, 0, 0, FALSE)
105 MALLOC_DEFINE(M_SCSISA, "SCSI sa", "SCSI sequential access buffers");
108 SA_STATE_NORMAL, SA_STATE_ABNORMAL
111 #define ccb_pflags ppriv_field0
112 #define ccb_bp ppriv_ptr1
114 #define SA_CCB_BUFFER_IO 0x0
115 #define SA_CCB_WAITING 0x1
116 #define SA_CCB_TYPEMASK 0x1
117 #define SA_POSITION_UPDATED 0x2
119 #define Set_CCB_Type(x, type) \
120 x->ccb_h.ccb_pflags &= ~SA_CCB_TYPEMASK; \
121 x->ccb_h.ccb_pflags |= type
123 #define CCB_Type(x) (x->ccb_h.ccb_pflags & SA_CCB_TYPEMASK)
128 SA_FLAG_OPEN = 0x0001,
129 SA_FLAG_FIXED = 0x0002,
130 SA_FLAG_TAPE_LOCKED = 0x0004,
131 SA_FLAG_TAPE_MOUNTED = 0x0008,
132 SA_FLAG_TAPE_WP = 0x0010,
133 SA_FLAG_TAPE_WRITTEN = 0x0020,
134 SA_FLAG_EOM_PENDING = 0x0040,
135 SA_FLAG_EIO_PENDING = 0x0080,
136 SA_FLAG_EOF_PENDING = 0x0100,
137 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING|
138 SA_FLAG_EOF_PENDING),
139 SA_FLAG_INVALID = 0x0200,
140 SA_FLAG_COMP_ENABLED = 0x0400,
141 SA_FLAG_COMP_SUPP = 0x0800,
142 SA_FLAG_COMP_UNSUPP = 0x1000,
143 SA_FLAG_TAPE_FROZEN = 0x2000
147 SA_MODE_REWIND = 0x00,
148 SA_MODE_NOREWIND = 0x01,
149 SA_MODE_OFFLINE = 0x02
153 SA_PARAM_NONE = 0x00,
154 SA_PARAM_BLOCKSIZE = 0x01,
155 SA_PARAM_DENSITY = 0x02,
156 SA_PARAM_COMPRESSION = 0x04,
157 SA_PARAM_BUFF_MODE = 0x08,
158 SA_PARAM_NUMBLOCKS = 0x10,
160 SA_PARAM_SPEED = 0x40,
165 SA_QUIRK_NONE = 0x00,
166 SA_QUIRK_NOCOMP = 0x01, /* Can't deal with compression at all */
167 SA_QUIRK_FIXED = 0x02, /* Force fixed mode */
168 SA_QUIRK_VARIABLE = 0x04, /* Force variable mode */
169 SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */
170 SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */
171 SA_QUIRK_NODREAD = 0x20, /* Don't try and dummy read density */
172 SA_QUIRK_NO_MODESEL = 0x40, /* Don't do mode select at all */
173 SA_QUIRK_NO_CPAGE = 0x80 /* Don't use DEVICE COMPRESSION page */
176 #define SAMODE(z) (dev2unit(z) & 0x3)
177 #define SADENSITY(z) ((dev2unit(z) >> 2) & 0x3)
178 #define SA_IS_CTRL(z) (dev2unit(z) & (1 << 4))
180 #define SA_NOT_CTLDEV 0
184 #define SA_ATYPE_NR 1
185 #define SA_ATYPE_ER 2
187 #define SAMINOR(ctl, mode, access) \
188 ((ctl << 4) | (mode << 2) | (access & 0x3))
190 #define SA_NUM_MODES 4
192 struct cdev *ctl_dev;
193 struct sa_mode_devs {
197 } mode_devs[SA_NUM_MODES];
204 struct bio_queue_head bio_queue;
206 struct devstat *device_stats;
213 u_int32_t comp_algorithm;
214 u_int32_t saved_comp_algorithm;
215 u_int32_t media_blksize;
216 u_int32_t last_media_blksize;
217 u_int32_t media_numblks;
218 u_int8_t media_density;
221 u_int8_t dsreg; /* mtio mt_dsreg, redux */
225 int last_resid_was_io;
228 * Relative to BOT Location.
237 struct scsi_sense_data _last_io_sense;
238 u_int64_t _last_io_resid;
239 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN];
240 struct scsi_sense_data _last_ctl_sense;
241 u_int64_t _last_ctl_resid;
242 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN];
243 #define last_io_sense errinfo._last_io_sense
244 #define last_io_resid errinfo._last_io_resid
245 #define last_io_cdb errinfo._last_io_cdb
246 #define last_ctl_sense errinfo._last_ctl_sense
247 #define last_ctl_resid errinfo._last_ctl_resid
248 #define last_ctl_cdb errinfo._last_ctl_cdb
251 * Misc other flags/state
255 open_rdonly : 1, /* open read-only */
256 open_pending_mount : 1, /* open pending mount */
257 ctrl_mode : 1; /* control device open */
260 struct sa_quirk_entry {
261 struct scsi_inquiry_pattern inq_pat; /* matching pattern */
262 sa_quirks quirks; /* specific quirk type */
263 u_int32_t prefblk; /* preferred blocksize when in fixed mode */
266 static struct sa_quirk_entry sa_quirk_table[] =
269 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream",
270 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD |
271 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768
274 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
275 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0
278 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
279 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0
282 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
283 "Python*", "*"}, SA_QUIRK_NODREAD, 0
286 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
287 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
290 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
291 "VIPER 2525 25462", "-011"},
292 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0
295 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE",
296 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
300 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
301 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0,
305 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
306 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
309 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
310 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
313 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
314 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
317 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP",
318 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
321 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY",
322 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
325 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA",
326 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0
328 { /* jreynold@primenet.com */
329 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
330 "STT8000N*", "*"}, SA_QUIRK_1FM, 0
332 { /* mike@sentex.net */
333 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate",
334 "STT20000*", "*"}, SA_QUIRK_1FM, 0
337 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
338 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
341 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
342 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
345 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
346 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
349 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
350 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512
353 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG",
354 " SLR*", "*"}, SA_QUIRK_1FM, 0
357 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
358 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512
361 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK",
362 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024
366 static d_open_t saopen;
367 static d_close_t saclose;
368 static d_strategy_t sastrategy;
369 static d_ioctl_t saioctl;
370 static periph_init_t sainit;
371 static periph_ctor_t saregister;
372 static periph_oninv_t saoninvalidate;
373 static periph_dtor_t sacleanup;
374 static periph_start_t sastart;
375 static void saasync(void *callback_arg, u_int32_t code,
376 struct cam_path *path, void *arg);
377 static void sadone(struct cam_periph *periph,
378 union ccb *start_ccb);
379 static int saerror(union ccb *ccb, u_int32_t cam_flags,
380 u_int32_t sense_flags);
381 static int samarkswanted(struct cam_periph *);
382 static int sacheckeod(struct cam_periph *periph);
383 static int sagetparams(struct cam_periph *periph,
384 sa_params params_to_get,
385 u_int32_t *blocksize, u_int8_t *density,
386 u_int32_t *numblocks, int *buff_mode,
387 u_int8_t *write_protect, u_int8_t *speed,
388 int *comp_supported, int *comp_enabled,
389 u_int32_t *comp_algorithm,
390 sa_comp_t *comp_page);
391 static int sasetparams(struct cam_periph *periph,
392 sa_params params_to_set,
393 u_int32_t blocksize, u_int8_t density,
394 u_int32_t comp_algorithm,
395 u_int32_t sense_flags);
396 static void saprevent(struct cam_periph *periph, int action);
397 static int sarewind(struct cam_periph *periph);
398 static int saspace(struct cam_periph *periph, int count,
399 scsi_space_code code);
400 static int samount(struct cam_periph *, int, struct cdev *);
401 static int saretension(struct cam_periph *periph);
402 static int sareservereleaseunit(struct cam_periph *periph,
404 static int saloadunload(struct cam_periph *periph, int load);
405 static int saerase(struct cam_periph *periph, int longerase);
406 static int sawritefilemarks(struct cam_periph *periph,
407 int nmarks, int setmarks);
408 static int sardpos(struct cam_periph *periph, int, u_int32_t *);
409 static int sasetpos(struct cam_periph *periph, int, u_int32_t *);
412 static struct periph_driver sadriver =
415 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0
418 PERIPHDRIVER_DECLARE(sa, sadriver);
420 /* For 2.2-stable support */
426 static struct cdevsw sa_cdevsw = {
427 .d_version = D_VERSION,
431 .d_write = physwrite,
433 .d_strategy = sastrategy,
435 .d_flags = D_TAPE | D_NEEDGIANT,
439 saopen(struct cdev *dev, int flags, int fmt, struct thread *td)
441 struct cam_periph *periph;
442 struct sa_softc *softc;
445 periph = (struct cam_periph *)dev->si_drv1;
446 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
450 cam_periph_lock(periph);
452 softc = (struct sa_softc *)periph->softc;
454 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
455 ("saopen(%s): softc=0x%x\n", devtoname(dev), softc->flags));
457 if (SA_IS_CTRL(dev)) {
458 softc->ctrl_mode = 1;
459 cam_periph_unlock(periph);
463 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
464 cam_periph_unlock(periph);
465 cam_periph_release(periph);
469 if (softc->flags & SA_FLAG_OPEN) {
471 } else if (softc->flags & SA_FLAG_INVALID) {
475 * Preserve whether this is a read_only open.
477 softc->open_rdonly = (flags & O_RDWR) == O_RDONLY;
480 * The function samount ensures media is loaded and ready.
481 * It also does a device RESERVE if the tape isn't yet mounted.
483 * If the mount fails and this was a non-blocking open,
484 * make this a 'open_pending_mount' action.
486 error = samount(periph, flags, dev);
487 if (error && (flags & O_NONBLOCK)) {
488 softc->flags |= SA_FLAG_OPEN;
489 softc->open_pending_mount = 1;
490 cam_periph_unhold(periph);
491 cam_periph_unlock(periph);
497 cam_periph_unhold(periph);
498 cam_periph_unlock(periph);
499 cam_periph_release(periph);
503 saprevent(periph, PR_PREVENT);
504 softc->flags |= SA_FLAG_OPEN;
506 cam_periph_unhold(periph);
507 cam_periph_unlock(periph);
512 saclose(struct cdev *dev, int flag, int fmt, struct thread *td)
514 struct cam_periph *periph;
515 struct sa_softc *softc;
516 int mode, error, writing, tmp;
517 int closedbits = SA_FLAG_OPEN;
520 periph = (struct cam_periph *)dev->si_drv1;
524 cam_periph_lock(periph);
526 softc = (struct sa_softc *)periph->softc;
528 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO,
529 ("saclose(%s): softc=0x%x\n", devtoname(dev), softc->flags));
532 softc->open_rdonly = 0;
533 if (SA_IS_CTRL(dev)) {
534 softc->ctrl_mode = 0;
535 cam_periph_unlock(periph);
536 cam_periph_release(periph);
540 if (softc->open_pending_mount) {
541 softc->flags &= ~SA_FLAG_OPEN;
542 softc->open_pending_mount = 0;
543 cam_periph_unlock(periph);
544 cam_periph_release(periph);
548 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
549 cam_periph_unlock(periph);
554 * Were we writing the tape?
556 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0;
559 * See whether or not we need to write filemarks. If this
560 * fails, we probably have to assume we've lost tape
563 error = sacheckeod(periph);
565 xpt_print(periph->path,
566 "failed to write terminating filemark(s)\n");
567 softc->flags |= SA_FLAG_TAPE_FROZEN;
571 * Whatever we end up doing, allow users to eject tapes from here on.
573 saprevent(periph, PR_ALLOW);
576 * Decide how to end...
578 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
579 closedbits |= SA_FLAG_TAPE_FROZEN;
580 } else switch (mode) {
581 case SA_MODE_OFFLINE:
583 * An 'offline' close is an unconditional release of
584 * frozen && mount conditions, irrespective of whether
585 * these operations succeeded. The reason for this is
586 * to allow at least some kind of programmatic way
587 * around our state getting all fouled up. If somebody
588 * issues an 'offline' command, that will be allowed
591 (void) sarewind(periph);
592 (void) saloadunload(periph, FALSE);
593 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN;
597 * If the rewind fails, return an error- if anyone cares,
598 * but not overwriting any previous error.
600 * We don't clear the notion of mounted here, but we do
601 * clear the notion of frozen if we successfully rewound.
603 tmp = sarewind(periph);
608 closedbits |= SA_FLAG_TAPE_FROZEN;
611 case SA_MODE_NOREWIND:
613 * If we're not rewinding/unloading the tape, find out
614 * whether we need to back up over one of two filemarks
615 * we wrote (if we wrote two filemarks) so that appends
616 * from this point on will be sane.
618 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) {
619 tmp = saspace(periph, -1, SS_FILEMARKS);
621 xpt_print(periph->path, "unable to backspace "
622 "over one of double filemarks at end of "
624 xpt_print(periph->path, "it is possible that "
625 "this device needs a SA_QUIRK_1FM quirk set"
627 softc->flags |= SA_FLAG_TAPE_FROZEN;
632 xpt_print(periph->path, "unknown mode 0x%x in saclose\n", mode);
638 * We wish to note here that there are no more filemarks to be written.
640 softc->filemarks = 0;
641 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
644 * And we are no longer open for business.
646 softc->flags &= ~closedbits;
649 * Inform users if tape state if frozen....
651 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
652 xpt_print(periph->path, "tape is now frozen- use an OFFLINE, "
653 "REWIND or MTEOM command to clear this state.\n");
656 /* release the device if it is no longer mounted */
657 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0)
658 sareservereleaseunit(periph, FALSE);
660 cam_periph_unhold(periph);
661 cam_periph_unlock(periph);
662 cam_periph_release(periph);
668 * Actually translate the requested transfer into one the physical driver
669 * can understand. The transfer is described by a buf and will include
670 * only one physical transfer.
673 sastrategy(struct bio *bp)
675 struct cam_periph *periph;
676 struct sa_softc *softc;
678 bp->bio_resid = bp->bio_bcount;
679 if (SA_IS_CTRL(bp->bio_dev)) {
680 biofinish(bp, NULL, EINVAL);
683 periph = (struct cam_periph *)bp->bio_dev->si_drv1;
684 if (periph == NULL) {
685 biofinish(bp, NULL, ENXIO);
688 cam_periph_lock(periph);
690 softc = (struct sa_softc *)periph->softc;
692 if (softc->flags & SA_FLAG_INVALID) {
693 cam_periph_unlock(periph);
694 biofinish(bp, NULL, ENXIO);
698 if (softc->flags & SA_FLAG_TAPE_FROZEN) {
699 cam_periph_unlock(periph);
700 biofinish(bp, NULL, EPERM);
705 * This should actually never occur as the write(2)
706 * system call traps attempts to write to a read-only
709 if (bp->bio_cmd == BIO_WRITE && softc->open_rdonly) {
710 cam_periph_unlock(periph);
711 biofinish(bp, NULL, EBADF);
715 if (softc->open_pending_mount) {
716 int error = samount(periph, 0, bp->bio_dev);
718 cam_periph_unlock(periph);
719 biofinish(bp, NULL, ENXIO);
722 saprevent(periph, PR_PREVENT);
723 softc->open_pending_mount = 0;
728 * If it's a null transfer, return immediately
730 if (bp->bio_bcount == 0) {
731 cam_periph_unlock(periph);
737 if (softc->flags & SA_FLAG_FIXED) {
739 * Fixed block device. The byte count must
740 * be a multiple of our block size.
742 if (((softc->blk_mask != ~0) &&
743 ((bp->bio_bcount & softc->blk_mask) != 0)) ||
744 ((softc->blk_mask == ~0) &&
745 ((bp->bio_bcount % softc->min_blk) != 0))) {
746 xpt_print(periph->path, "Invalid request. Fixed block "
747 "device requests must be a multiple of %d bytes\n",
749 cam_periph_unlock(periph);
750 biofinish(bp, NULL, EINVAL);
753 } else if ((bp->bio_bcount > softc->max_blk) ||
754 (bp->bio_bcount < softc->min_blk) ||
755 (bp->bio_bcount & softc->blk_mask) != 0) {
757 xpt_print_path(periph->path);
758 printf("Invalid request. Variable block "
759 "device requests must be ");
760 if (softc->blk_mask != 0) {
761 printf("a multiple of %d ", (0x1 << softc->blk_gran));
763 printf("between %d and %d bytes\n", softc->min_blk,
765 cam_periph_unlock(periph);
766 biofinish(bp, NULL, EINVAL);
771 * Place it at the end of the queue.
773 bioq_insert_tail(&softc->bio_queue, bp);
774 softc->queue_count++;
776 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
777 ("sastrategy: queuing a %ld %s byte %s\n", bp->bio_bcount,
778 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable",
779 (bp->bio_cmd == BIO_READ)? "read" : "write"));
781 if (softc->queue_count > 1) {
782 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
783 ("sastrategy: queue count now %d\n", softc->queue_count));
787 * Schedule ourselves for performing the work.
789 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
790 cam_periph_unlock(periph);
796 #define PENDING_MOUNT_CHECK(softc, periph, dev) \
797 if (softc->open_pending_mount) { \
798 error = samount(periph, 0, dev); \
802 saprevent(periph, PR_PREVENT); \
803 softc->open_pending_mount = 0; \
807 saioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
809 struct cam_periph *periph;
810 struct sa_softc *softc;
811 scsi_space_code spaceop;
812 int didlockperiph = 0;
817 error = 0; /* shut up gcc */
818 spaceop = 0; /* shut up gcc */
820 periph = (struct cam_periph *)dev->si_drv1;
824 cam_periph_lock(periph);
825 softc = (struct sa_softc *)periph->softc;
828 * Check for control mode accesses. We allow MTIOCGET and
829 * MTIOCERRSTAT (but need to be the only one open in order
830 * to clear latched status), and MTSETBSIZE, MTSETDNSTY
831 * and MTCOMP (but need to be the only one accessing this
832 * device to run those).
835 if (SA_IS_CTRL(dev)) {
837 case MTIOCGETEOTMODEL:
842 * If the periph isn't already locked, lock it
843 * so our MTIOCERRSTAT can reset latched error stats.
845 * If the periph is already locked, skip it because
846 * we're just getting status and it'll be up to the
847 * other thread that has this device open to do
848 * an MTIOCERRSTAT that would clear latched status.
850 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) {
851 error = cam_periph_hold(periph, PRIBIO|PCATCH);
853 cam_periph_unlock(periph);
862 struct mtop *mt = (struct mtop *) arg;
865 * Check to make sure it's an OP we can perform
866 * with no media inserted.
882 case MTIOCSETEOTMODEL:
884 * We need to acquire the peripheral here rather
885 * than at open time because we are sharing writable
886 * access to data structures.
888 error = cam_periph_hold(periph, PRIBIO|PCATCH);
890 cam_periph_unlock(periph);
897 cam_periph_unlock(periph);
903 * Find the device that the user is talking about
908 struct mtget *g = (struct mtget *)arg;
911 * If this isn't the control mode device, actually go out
912 * and ask the drive again what it's set to.
914 if (!SA_IS_CTRL(dev) && !softc->open_pending_mount) {
915 u_int8_t write_protect;
916 int comp_enabled, comp_supported;
917 error = sagetparams(periph, SA_PARAM_ALL,
918 &softc->media_blksize, &softc->media_density,
919 &softc->media_numblks, &softc->buffer_mode,
920 &write_protect, &softc->speed, &comp_supported,
921 &comp_enabled, &softc->comp_algorithm, NULL);
925 softc->flags |= SA_FLAG_TAPE_WP;
927 softc->flags &= ~SA_FLAG_TAPE_WP;
928 softc->flags &= ~(SA_FLAG_COMP_SUPP|
929 SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP);
930 if (comp_supported) {
931 if (softc->saved_comp_algorithm == 0)
932 softc->saved_comp_algorithm =
933 softc->comp_algorithm;
934 softc->flags |= SA_FLAG_COMP_SUPP;
936 softc->flags |= SA_FLAG_COMP_ENABLED;
938 softc->flags |= SA_FLAG_COMP_UNSUPP;
940 bzero(g, sizeof(struct mtget));
941 g->mt_type = MT_ISAR;
942 if (softc->flags & SA_FLAG_COMP_UNSUPP) {
943 g->mt_comp = MT_COMP_UNSUPP;
944 g->mt_comp0 = MT_COMP_UNSUPP;
945 g->mt_comp1 = MT_COMP_UNSUPP;
946 g->mt_comp2 = MT_COMP_UNSUPP;
947 g->mt_comp3 = MT_COMP_UNSUPP;
949 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) {
950 g->mt_comp = MT_COMP_DISABLED;
952 g->mt_comp = softc->comp_algorithm;
954 g->mt_comp0 = softc->comp_algorithm;
955 g->mt_comp1 = softc->comp_algorithm;
956 g->mt_comp2 = softc->comp_algorithm;
957 g->mt_comp3 = softc->comp_algorithm;
959 g->mt_density = softc->media_density;
960 g->mt_density0 = softc->media_density;
961 g->mt_density1 = softc->media_density;
962 g->mt_density2 = softc->media_density;
963 g->mt_density3 = softc->media_density;
964 g->mt_blksiz = softc->media_blksize;
965 g->mt_blksiz0 = softc->media_blksize;
966 g->mt_blksiz1 = softc->media_blksize;
967 g->mt_blksiz2 = softc->media_blksize;
968 g->mt_blksiz3 = softc->media_blksize;
969 g->mt_fileno = softc->fileno;
970 g->mt_blkno = softc->blkno;
971 g->mt_dsreg = (short) softc->dsreg;
973 * Yes, we know that this is likely to overflow
975 if (softc->last_resid_was_io) {
976 if ((g->mt_resid = (short) softc->last_io_resid) != 0) {
977 if (SA_IS_CTRL(dev) == 0 || didlockperiph) {
978 softc->last_io_resid = 0;
982 if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) {
983 if (SA_IS_CTRL(dev) == 0 || didlockperiph) {
984 softc->last_ctl_resid = 0;
993 struct scsi_tape_errors *sep =
994 &((union mterrstat *)arg)->scsi_errstat;
996 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
997 ("saioctl: MTIOCERRSTAT\n"));
999 bzero(sep, sizeof(*sep));
1000 sep->io_resid = softc->last_io_resid;
1001 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense,
1002 sizeof (sep->io_sense));
1003 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb,
1004 sizeof (sep->io_cdb));
1005 sep->ctl_resid = softc->last_ctl_resid;
1006 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense,
1007 sizeof (sep->ctl_sense));
1008 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb,
1009 sizeof (sep->ctl_cdb));
1011 if ((SA_IS_CTRL(dev) == 0 && softc->open_pending_mount) ||
1013 bzero((caddr_t) &softc->errinfo,
1014 sizeof (softc->errinfo));
1023 PENDING_MOUNT_CHECK(softc, periph, dev);
1025 mt = (struct mtop *)arg;
1028 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1029 ("saioctl: op=0x%x count=0x%x\n",
1030 mt->mt_op, mt->mt_count));
1032 count = mt->mt_count;
1033 switch (mt->mt_op) {
1034 case MTWEOF: /* write an end-of-file marker */
1036 * We don't need to clear the SA_FLAG_TAPE_WRITTEN
1037 * flag because by keeping track of filemarks
1038 * we have last written we know ehether or not
1039 * we need to write more when we close the device.
1041 error = sawritefilemarks(periph, count, FALSE);
1043 case MTWSS: /* write a setmark */
1044 error = sawritefilemarks(periph, count, TRUE);
1046 case MTBSR: /* backward space record */
1047 case MTFSR: /* forward space record */
1048 case MTBSF: /* backward space file */
1049 case MTFSF: /* forward space file */
1050 case MTBSS: /* backward space setmark */
1051 case MTFSS: /* forward space setmark */
1052 case MTEOD: /* space to end of recorded medium */
1056 spaceop = SS_FILEMARKS;
1057 nmarks = softc->filemarks;
1058 error = sacheckeod(periph);
1060 xpt_print(periph->path,
1061 "EOD check prior to spacing failed\n");
1062 softc->flags |= SA_FLAG_EIO_PENDING;
1065 nmarks -= softc->filemarks;
1071 spaceop = SS_BLOCKS;
1082 spaceop = SS_SETMARKS;
1096 nmarks = softc->filemarks;
1098 * XXX: Why are we checking again?
1100 error = sacheckeod(periph);
1103 nmarks -= softc->filemarks;
1104 error = saspace(periph, count - nmarks, spaceop);
1106 * At this point, clear that we've written the tape
1107 * and that we've written any filemarks. We really
1108 * don't know what the applications wishes to do next-
1109 * the sacheckeod's will make sure we terminated the
1110 * tape correctly if we'd been writing, but the next
1111 * action the user application takes will set again
1112 * whether we need to write filemarks.
1115 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1116 softc->filemarks = 0;
1119 case MTREW: /* rewind */
1120 PENDING_MOUNT_CHECK(softc, periph, dev);
1121 (void) sacheckeod(periph);
1122 error = sarewind(periph);
1125 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1126 softc->flags &= ~SA_FLAG_ERR_PENDING;
1127 softc->filemarks = 0;
1129 case MTERASE: /* erase */
1130 PENDING_MOUNT_CHECK(softc, periph, dev);
1131 error = saerase(periph, count);
1133 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1134 softc->flags &= ~SA_FLAG_ERR_PENDING;
1136 case MTRETENS: /* re-tension tape */
1137 PENDING_MOUNT_CHECK(softc, periph, dev);
1138 error = saretension(periph);
1140 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN);
1141 softc->flags &= ~SA_FLAG_ERR_PENDING;
1143 case MTOFFL: /* rewind and put the drive offline */
1145 PENDING_MOUNT_CHECK(softc, periph, dev);
1147 (void) sacheckeod(periph);
1149 softc->flags &= ~SA_FLAG_TAPE_WRITTEN;
1150 softc->filemarks = 0;
1152 error = sarewind(periph);
1153 /* clear the frozen flag anyway */
1154 softc->flags &= ~SA_FLAG_TAPE_FROZEN;
1157 * Be sure to allow media removal before ejecting.
1160 saprevent(periph, PR_ALLOW);
1162 error = saloadunload(periph, FALSE);
1164 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1169 case MTNOP: /* no operation, sets status only */
1170 case MTCACHE: /* enable controller cache */
1171 case MTNOCACHE: /* disable controller cache */
1175 case MTSETBSIZ: /* Set block size for device */
1177 PENDING_MOUNT_CHECK(softc, periph, dev);
1179 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count,
1182 softc->last_media_blksize =
1183 softc->media_blksize;
1184 softc->media_blksize = count;
1186 softc->flags |= SA_FLAG_FIXED;
1187 if (powerof2(count)) {
1190 softc->blk_mask = count - 1;
1192 softc->blk_mask = ~0;
1193 softc->blk_shift = 0;
1196 * Make the user's desire 'persistent'.
1198 softc->quirks &= ~SA_QUIRK_VARIABLE;
1199 softc->quirks |= SA_QUIRK_FIXED;
1201 softc->flags &= ~SA_FLAG_FIXED;
1202 if (softc->max_blk == 0) {
1203 softc->max_blk = ~0;
1205 softc->blk_shift = 0;
1206 if (softc->blk_gran != 0) {
1208 softc->blk_gran - 1;
1210 softc->blk_mask = 0;
1213 * Make the user's desire 'persistent'.
1215 softc->quirks |= SA_QUIRK_VARIABLE;
1216 softc->quirks &= ~SA_QUIRK_FIXED;
1220 case MTSETDNSTY: /* Set density for device and mode */
1221 PENDING_MOUNT_CHECK(softc, periph, dev);
1223 if (count > UCHAR_MAX) {
1227 error = sasetparams(periph, SA_PARAM_DENSITY,
1231 case MTCOMP: /* enable compression */
1232 PENDING_MOUNT_CHECK(softc, periph, dev);
1234 * Some devices don't support compression, and
1235 * don't like it if you ask them for the
1238 if ((softc->quirks & SA_QUIRK_NOCOMP) ||
1239 (softc->flags & SA_FLAG_COMP_UNSUPP)) {
1243 error = sasetparams(periph, SA_PARAM_COMPRESSION,
1244 0, 0, count, SF_NO_PRINT);
1256 PENDING_MOUNT_CHECK(softc, periph, dev);
1257 error = sardpos(periph, 0, (u_int32_t *) arg);
1260 PENDING_MOUNT_CHECK(softc, periph, dev);
1261 error = sardpos(periph, 1, (u_int32_t *) arg);
1264 PENDING_MOUNT_CHECK(softc, periph, dev);
1265 error = sasetpos(periph, 0, (u_int32_t *) arg);
1268 PENDING_MOUNT_CHECK(softc, periph, dev);
1269 error = sasetpos(periph, 1, (u_int32_t *) arg);
1271 case MTIOCGETEOTMODEL:
1273 if (softc->quirks & SA_QUIRK_1FM)
1277 *((u_int32_t *) arg) = mode;
1279 case MTIOCSETEOTMODEL:
1281 switch (*((u_int32_t *) arg)) {
1283 softc->quirks &= ~SA_QUIRK_2FM;
1284 softc->quirks |= SA_QUIRK_1FM;
1287 softc->quirks &= ~SA_QUIRK_1FM;
1288 softc->quirks |= SA_QUIRK_2FM;
1296 error = cam_periph_ioctl(periph, cmd, arg, saerror);
1301 * Check to see if we cleared a frozen state
1303 if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) {
1309 softc->fileno = (daddr_t) -1;
1310 softc->blkno = (daddr_t) -1;
1311 softc->flags &= ~SA_FLAG_TAPE_FROZEN;
1312 xpt_print(periph->path,
1313 "tape state now unfrozen.\n");
1319 if (didlockperiph) {
1320 cam_periph_unhold(periph);
1322 cam_periph_unlock(periph);
1332 * Install a global async callback.
1334 status = xpt_register_async(AC_FOUND_DEVICE, saasync, NULL, NULL);
1336 if (status != CAM_REQ_CMP) {
1337 printf("sa: Failed to attach master async callback "
1338 "due to status 0x%x!\n", status);
1343 saoninvalidate(struct cam_periph *periph)
1345 struct sa_softc *softc;
1347 softc = (struct sa_softc *)periph->softc;
1350 * De-register any async callbacks.
1352 xpt_register_async(0, saasync, periph, periph->path);
1354 softc->flags |= SA_FLAG_INVALID;
1357 * Return all queued I/O with ENXIO.
1358 * XXX Handle any transactions queued to the card
1359 * with XPT_ABORT_CCB.
1361 bioq_flush(&softc->bio_queue, NULL, ENXIO);
1362 softc->queue_count = 0;
1364 xpt_print(periph->path, "lost device\n");
1369 sacleanup(struct cam_periph *periph)
1371 struct sa_softc *softc;
1374 softc = (struct sa_softc *)periph->softc;
1376 xpt_print(periph->path, "removing device entry\n");
1377 devstat_remove_entry(softc->device_stats);
1378 cam_periph_unlock(periph);
1379 destroy_dev(softc->devs.ctl_dev);
1380 for (i = 0; i < SA_NUM_MODES; i++) {
1381 destroy_dev(softc->devs.mode_devs[i].r_dev);
1382 destroy_dev(softc->devs.mode_devs[i].nr_dev);
1383 destroy_dev(softc->devs.mode_devs[i].er_dev);
1385 cam_periph_lock(periph);
1386 free(softc, M_SCSISA);
1390 saasync(void *callback_arg, u_int32_t code,
1391 struct cam_path *path, void *arg)
1393 struct cam_periph *periph;
1395 periph = (struct cam_periph *)callback_arg;
1397 case AC_FOUND_DEVICE:
1399 struct ccb_getdev *cgd;
1402 cgd = (struct ccb_getdev *)arg;
1406 if (cgd->protocol != PROTO_SCSI)
1409 if (SID_TYPE(&cgd->inq_data) != T_SEQUENTIAL)
1413 * Allocate a peripheral instance for
1414 * this device and start the probe
1417 status = cam_periph_alloc(saregister, saoninvalidate,
1419 "sa", CAM_PERIPH_BIO, cgd->ccb_h.path,
1420 saasync, AC_FOUND_DEVICE, cgd);
1422 if (status != CAM_REQ_CMP
1423 && status != CAM_REQ_INPROG)
1424 printf("saasync: Unable to probe new device "
1425 "due to status 0x%x\n", status);
1429 cam_periph_async(periph, code, path, arg);
1435 saregister(struct cam_periph *periph, void *arg)
1437 struct sa_softc *softc;
1438 struct ccb_getdev *cgd;
1439 struct ccb_pathinq cpi;
1443 cgd = (struct ccb_getdev *)arg;
1444 if (periph == NULL) {
1445 printf("saregister: periph was NULL!!\n");
1446 return (CAM_REQ_CMP_ERR);
1450 printf("saregister: no getdev CCB, can't register device\n");
1451 return (CAM_REQ_CMP_ERR);
1454 softc = (struct sa_softc *)
1455 malloc(sizeof (*softc), M_SCSISA, M_NOWAIT | M_ZERO);
1456 if (softc == NULL) {
1457 printf("saregister: Unable to probe new device. "
1458 "Unable to allocate softc\n");
1459 return (CAM_REQ_CMP_ERR);
1461 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data);
1462 softc->state = SA_STATE_NORMAL;
1463 softc->fileno = (daddr_t) -1;
1464 softc->blkno = (daddr_t) -1;
1466 bioq_init(&softc->bio_queue);
1467 periph->softc = softc;
1470 * See if this device has any quirks.
1472 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1473 (caddr_t)sa_quirk_table,
1474 sizeof(sa_quirk_table)/sizeof(*sa_quirk_table),
1475 sizeof(*sa_quirk_table), scsi_inquiry_match);
1477 if (match != NULL) {
1478 softc->quirks = ((struct sa_quirk_entry *)match)->quirks;
1479 softc->last_media_blksize =
1480 ((struct sa_quirk_entry *)match)->prefblk;
1482 xpt_print(periph->path, "found quirk entry %d\n",
1483 (int) (((struct sa_quirk_entry *) match) - sa_quirk_table));
1486 softc->quirks = SA_QUIRK_NONE;
1488 bzero(&cpi, sizeof(cpi));
1489 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1490 cpi.ccb_h.func_code = XPT_PATH_INQ;
1491 xpt_action((union ccb *)&cpi);
1494 * The SA driver supports a blocksize, but we don't know the
1495 * blocksize until we media is inserted. So, set a flag to
1496 * indicate that the blocksize is unavailable right now.
1498 cam_periph_unlock(periph);
1499 softc->device_stats = devstat_new_entry("sa", periph->unit_number, 0,
1500 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) |
1501 XPORT_DEVSTAT_TYPE(cpi.transport), DEVSTAT_PRIORITY_TAPE);
1503 softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV,
1504 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR,
1505 0660, "%s%d.ctl", periph->periph_name, periph->unit_number);
1506 softc->devs.ctl_dev->si_drv1 = periph;
1508 for (i = 0; i < SA_NUM_MODES; i++) {
1510 softc->devs.mode_devs[i].r_dev = make_dev(&sa_cdevsw,
1511 SAMINOR(SA_NOT_CTLDEV, i, SA_ATYPE_R),
1512 UID_ROOT, GID_OPERATOR, 0660, "%s%d.%d",
1513 periph->periph_name, periph->unit_number, i);
1514 softc->devs.mode_devs[i].r_dev->si_drv1 = periph;
1516 softc->devs.mode_devs[i].nr_dev = make_dev(&sa_cdevsw,
1517 SAMINOR(SA_NOT_CTLDEV, i, SA_ATYPE_NR),
1518 UID_ROOT, GID_OPERATOR, 0660, "n%s%d.%d",
1519 periph->periph_name, periph->unit_number, i);
1520 softc->devs.mode_devs[i].nr_dev->si_drv1 = periph;
1522 softc->devs.mode_devs[i].er_dev = make_dev(&sa_cdevsw,
1523 SAMINOR(SA_NOT_CTLDEV, i, SA_ATYPE_ER),
1524 UID_ROOT, GID_OPERATOR, 0660, "e%s%d.%d",
1525 periph->periph_name, periph->unit_number, i);
1526 softc->devs.mode_devs[i].er_dev->si_drv1 = periph;
1529 * Make the (well known) aliases for the first mode.
1534 alias = make_dev_alias(softc->devs.mode_devs[i].r_dev,
1535 "%s%d", periph->periph_name, periph->unit_number);
1536 alias->si_drv1 = periph;
1537 alias = make_dev_alias(softc->devs.mode_devs[i].nr_dev,
1538 "n%s%d", periph->periph_name, periph->unit_number);
1539 alias->si_drv1 = periph;
1540 alias = make_dev_alias(softc->devs.mode_devs[i].er_dev,
1541 "e%s%d", periph->periph_name, periph->unit_number);
1542 alias->si_drv1 = periph;
1545 cam_periph_lock(periph);
1548 * Add an async callback so that we get
1549 * notified if this device goes away.
1551 xpt_register_async(AC_LOST_DEVICE, saasync, periph, periph->path);
1553 xpt_announce_periph(periph, NULL);
1555 return (CAM_REQ_CMP);
1559 sastart(struct cam_periph *periph, union ccb *start_ccb)
1561 struct sa_softc *softc;
1563 softc = (struct sa_softc *)periph->softc;
1565 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n"));
1568 switch (softc->state) {
1569 case SA_STATE_NORMAL:
1571 /* Pull a buffer from the queue and get going on it */
1575 * See if there is a buf with work for us to do..
1577 bp = bioq_first(&softc->bio_queue);
1578 if (periph->immediate_priority <= periph->pinfo.priority) {
1579 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1580 ("queuing for immediate ccb\n"));
1581 Set_CCB_Type(start_ccb, SA_CCB_WAITING);
1582 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1584 periph->immediate_priority = CAM_PRIORITY_NONE;
1585 wakeup(&periph->ccb_list);
1586 } else if (bp == NULL) {
1587 xpt_release_ccb(start_ccb);
1588 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) {
1589 struct bio *done_bp;
1591 softc->queue_count--;
1592 bioq_remove(&softc->bio_queue, bp);
1593 bp->bio_resid = bp->bio_bcount;
1595 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) {
1597 * We now just clear errors in this case
1598 * and let the residual be the notifier.
1601 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) {
1603 * This can only happen if we're reading
1604 * in fixed length mode. In this case,
1605 * we dump the rest of the list the
1609 if (bioq_first(&softc->bio_queue) != NULL) {
1613 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) {
1614 bp->bio_error = EIO;
1615 bp->bio_flags |= BIO_ERROR;
1617 bp = bioq_first(&softc->bio_queue);
1619 * Only if we have no other buffers queued up
1620 * do we clear the pending error flag.
1623 softc->flags &= ~SA_FLAG_ERR_PENDING;
1624 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1625 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, "
1626 "%d more buffers queued up\n",
1627 (softc->flags & SA_FLAG_ERR_PENDING),
1628 (bp != NULL)? "not " : " ", softc->queue_count));
1629 xpt_release_ccb(start_ccb);
1634 bioq_remove(&softc->bio_queue, bp);
1635 softc->queue_count--;
1637 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1638 if (softc->blk_shift != 0) {
1640 bp->bio_bcount >> softc->blk_shift;
1641 } else if (softc->media_blksize != 0) {
1642 length = bp->bio_bcount /
1643 softc->media_blksize;
1645 bp->bio_error = EIO;
1646 xpt_print(periph->path, "zero blocksize"
1647 " for FIXED length writes?\n");
1652 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
1653 ("issuing a %d fixed record %s\n",
1654 length, (bp->bio_cmd == BIO_READ)? "read" :
1658 length = bp->bio_bcount;
1660 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO,
1661 ("issuing a %d variable byte %s\n",
1662 length, (bp->bio_cmd == BIO_READ)? "read" :
1666 devstat_start_transaction_bio(softc->device_stats, bp);
1668 * Some people have theorized that we should
1669 * suppress illegal length indication if we are
1670 * running in variable block mode so that we don't
1671 * have to request sense every time our requested
1672 * block size is larger than the written block.
1673 * The residual information from the ccb allows
1674 * us to identify this situation anyway. The only
1675 * problem with this is that we will not get
1676 * information about blocks that are larger than
1677 * our read buffer unless we set the block size
1678 * in the mode page to something other than 0.
1680 * I believe that this is a non-issue. If user apps
1681 * don't adjust their read size to match our record
1682 * size, that's just life. Anyway, the typical usage
1683 * would be to issue, e.g., 64KB reads and occasionally
1684 * have to do deal with 512 byte or 1KB intermediate
1687 softc->dsreg = (bp->bio_cmd == BIO_READ)?
1688 MTIO_DSREG_RD : MTIO_DSREG_WR;
1689 scsi_sa_read_write(&start_ccb->csio, 0, sadone,
1690 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ),
1691 FALSE, (softc->flags & SA_FLAG_FIXED) != 0,
1692 length, bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE,
1694 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED;
1695 Set_CCB_Type(start_ccb, SA_CCB_BUFFER_IO);
1696 start_ccb->ccb_h.ccb_bp = bp;
1697 bp = bioq_first(&softc->bio_queue);
1698 xpt_action(start_ccb);
1702 /* Have more work to do, so ensure we stay scheduled */
1703 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1707 case SA_STATE_ABNORMAL:
1709 panic("state 0x%x in sastart", softc->state);
1716 sadone(struct cam_periph *periph, union ccb *done_ccb)
1718 struct sa_softc *softc;
1719 struct ccb_scsiio *csio;
1721 softc = (struct sa_softc *)periph->softc;
1722 csio = &done_ccb->csio;
1723 switch (CCB_Type(csio)) {
1724 case SA_CCB_BUFFER_IO:
1729 softc->dsreg = MTIO_DSREG_REST;
1730 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1732 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1733 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) {
1735 * A retry was scheduled, so just return.
1744 * Catastrophic error. Mark the tape as frozen
1745 * (we no longer know tape position).
1747 * Return all queued I/O with EIO, and unfreeze
1748 * our queue so that future transactions that
1749 * attempt to fix this problem can get to the
1754 softc->flags |= SA_FLAG_TAPE_FROZEN;
1755 bioq_flush(&softc->bio_queue, NULL, EIO);
1758 bp->bio_resid = bp->bio_bcount;
1759 bp->bio_error = error;
1760 bp->bio_flags |= BIO_ERROR;
1762 * In the error case, position is updated in saerror.
1765 bp->bio_resid = csio->resid;
1767 if (csio->resid != 0) {
1768 bp->bio_flags |= BIO_ERROR;
1770 if (bp->bio_cmd == BIO_WRITE) {
1771 softc->flags |= SA_FLAG_TAPE_WRITTEN;
1772 softc->filemarks = 0;
1774 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) &&
1775 (softc->blkno != (daddr_t) -1)) {
1776 if ((softc->flags & SA_FLAG_FIXED) != 0) {
1778 if (softc->blk_shift != 0) {
1779 l = bp->bio_bcount >>
1782 l = bp->bio_bcount /
1783 softc->media_blksize;
1785 softc->blkno += (daddr_t) l;
1792 * If we had an error (immediate or pending),
1793 * release the device queue now.
1795 if (error || (softc->flags & SA_FLAG_ERR_PENDING))
1796 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0);
1798 if (error || bp->bio_resid) {
1799 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
1800 ("error %d resid %ld count %ld\n", error,
1801 bp->bio_resid, bp->bio_bcount));
1804 biofinish(bp, softc->device_stats, 0);
1807 case SA_CCB_WAITING:
1809 /* Caller will release the CCB */
1810 wakeup(&done_ccb->ccb_h.cbfcnp);
1814 xpt_release_ccb(done_ccb);
1818 * Mount the tape (make sure it's ready for I/O).
1821 samount(struct cam_periph *periph, int oflags, struct cdev *dev)
1823 struct sa_softc *softc;
1828 * oflags can be checked for 'kind' of open (read-only check) - later
1829 * dev can be checked for a control-mode or compression open - later
1831 UNUSED_PARAMETER(oflags);
1832 UNUSED_PARAMETER(dev);
1835 softc = (struct sa_softc *)periph->softc;
1838 * This should determine if something has happend since the last
1839 * open/mount that would invalidate the mount. We do *not* want
1840 * to retry this command- we just want the status. But we only
1841 * do this if we're mounted already- if we're not mounted,
1842 * we don't care about the unit read state and can instead use
1843 * this opportunity to attempt to reserve the tape unit.
1846 if (softc->flags & SA_FLAG_TAPE_MOUNTED) {
1847 ccb = cam_periph_getccb(periph, 1);
1848 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1849 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
1850 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1851 softc->device_stats);
1853 if (error == ENXIO) {
1854 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1855 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1856 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
1857 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1858 softc->device_stats);
1862 * We don't need to freeze the tape because we
1863 * will now attempt to rewind/load it.
1865 softc->flags &= ~SA_FLAG_TAPE_MOUNTED;
1866 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
1867 xpt_print(periph->path,
1868 "error %d on TUR in samount\n", error);
1872 error = sareservereleaseunit(periph, TRUE);
1876 ccb = cam_periph_getccb(periph, 1);
1877 scsi_test_unit_ready(&ccb->csio, 0, sadone,
1878 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT);
1879 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1880 softc->device_stats);
1884 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) {
1885 struct scsi_read_block_limits_data *rblim = NULL;
1886 int comp_enabled, comp_supported;
1887 u_int8_t write_protect, guessing = 0;
1890 * Clear out old state.
1892 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN|
1893 SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED|
1894 SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP);
1895 softc->filemarks = 0;
1898 * *Very* first off, make sure we're loaded to BOT.
1900 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
1901 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT);
1902 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1903 softc->device_stats);
1907 * In case this doesn't work, do a REWIND instead
1910 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
1911 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1912 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1913 softc->device_stats);
1917 xpt_release_ccb(ccb);
1922 * Do a dummy test read to force access to the
1923 * media so that the drive will really know what's
1924 * there. We actually don't really care what the
1925 * blocksize on tape is and don't expect to really
1926 * read a full record.
1928 rblim = (struct scsi_read_block_limits_data *)
1929 malloc(8192, M_SCSISA, M_NOWAIT);
1930 if (rblim == NULL) {
1931 xpt_print(periph->path, "no memory for test read\n");
1932 xpt_release_ccb(ccb);
1937 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) {
1938 scsi_sa_read_write(&ccb->csio, 0, sadone,
1939 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192,
1940 (void *) rblim, 8192, SSD_FULL_SIZE,
1942 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
1943 softc->device_stats);
1945 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
1946 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT);
1947 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
1948 SF_NO_PRINT | SF_RETRY_UA,
1949 softc->device_stats);
1952 xpt_print(periph->path,
1953 "unable to rewind after test read\n");
1954 xpt_release_ccb(ccb);
1960 * Next off, determine block limits.
1962 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
1963 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
1965 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO,
1966 SF_NO_PRINT | SF_RETRY_UA, softc->device_stats);
1969 xpt_release_ccb(ccb);
1973 * If it's less than SCSI-2, READ BLOCK LIMITS is not
1974 * a MANDATORY command. Anyway- it doesn't matter-
1975 * we can proceed anyway.
1977 softc->blk_gran = 0;
1978 softc->max_blk = ~0;
1981 if (softc->scsi_rev >= SCSI_REV_SPC) {
1982 softc->blk_gran = RBL_GRAN(rblim);
1984 softc->blk_gran = 0;
1987 * We take max_blk == min_blk to mean a default to
1988 * fixed mode- but note that whatever we get out of
1989 * sagetparams below will actually determine whether
1990 * we are actually *in* fixed mode.
1992 softc->max_blk = scsi_3btoul(rblim->maximum);
1993 softc->min_blk = scsi_2btoul(rblim->minimum);
1998 * Next, perform a mode sense to determine
1999 * current density, blocksize, compression etc.
2001 error = sagetparams(periph, SA_PARAM_ALL,
2002 &softc->media_blksize,
2003 &softc->media_density,
2004 &softc->media_numblks,
2005 &softc->buffer_mode, &write_protect,
2006 &softc->speed, &comp_supported,
2007 &comp_enabled, &softc->comp_algorithm,
2012 * We could work a little harder here. We could
2013 * adjust our attempts to get information. It
2014 * might be an ancient tape drive. If someone
2015 * nudges us, we'll do that.
2021 * If no quirk has determined that this is a device that is
2022 * preferred to be in fixed or variable mode, now is the time
2025 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) {
2028 * This could be expensive to find out. Luckily we
2029 * only need to do this once. If we start out in
2030 * 'default' mode, try and set ourselves to one
2031 * of the densities that would determine a wad
2032 * of other stuff. Go from highest to lowest.
2034 if (softc->media_density == SCSI_DEFAULT_DENSITY) {
2036 static u_int8_t ctry[] = {
2037 SCSI_DENSITY_HALFINCH_PE,
2038 SCSI_DENSITY_HALFINCH_6250C,
2039 SCSI_DENSITY_HALFINCH_6250,
2040 SCSI_DENSITY_HALFINCH_1600,
2041 SCSI_DENSITY_HALFINCH_800,
2042 SCSI_DENSITY_QIC_4GB,
2043 SCSI_DENSITY_QIC_2GB,
2044 SCSI_DENSITY_QIC_525_320,
2045 SCSI_DENSITY_QIC_150,
2046 SCSI_DENSITY_QIC_120,
2047 SCSI_DENSITY_QIC_24,
2048 SCSI_DENSITY_QIC_11_9TRK,
2049 SCSI_DENSITY_QIC_11_4TRK,
2050 SCSI_DENSITY_QIC_1320,
2051 SCSI_DENSITY_QIC_3080,
2054 for (i = 0; ctry[i]; i++) {
2055 error = sasetparams(periph,
2056 SA_PARAM_DENSITY, 0, ctry[i],
2059 softc->media_density = ctry[i];
2064 switch (softc->media_density) {
2065 case SCSI_DENSITY_QIC_11_4TRK:
2066 case SCSI_DENSITY_QIC_11_9TRK:
2067 case SCSI_DENSITY_QIC_24:
2068 case SCSI_DENSITY_QIC_120:
2069 case SCSI_DENSITY_QIC_150:
2070 case SCSI_DENSITY_QIC_525_320:
2071 case SCSI_DENSITY_QIC_1320:
2072 case SCSI_DENSITY_QIC_3080:
2073 softc->quirks &= ~SA_QUIRK_2FM;
2074 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
2075 softc->last_media_blksize = 512;
2077 case SCSI_DENSITY_QIC_4GB:
2078 case SCSI_DENSITY_QIC_2GB:
2079 softc->quirks &= ~SA_QUIRK_2FM;
2080 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM;
2081 softc->last_media_blksize = 1024;
2084 softc->last_media_blksize =
2085 softc->media_blksize;
2086 softc->quirks |= SA_QUIRK_VARIABLE;
2092 * If no quirk has determined that this is a device that needs
2093 * to have 2 Filemarks at EOD, now is the time to find out.
2096 if ((softc->quirks & SA_QUIRK_2FM) == 0) {
2097 switch (softc->media_density) {
2098 case SCSI_DENSITY_HALFINCH_800:
2099 case SCSI_DENSITY_HALFINCH_1600:
2100 case SCSI_DENSITY_HALFINCH_6250:
2101 case SCSI_DENSITY_HALFINCH_6250C:
2102 case SCSI_DENSITY_HALFINCH_PE:
2103 softc->quirks &= ~SA_QUIRK_1FM;
2104 softc->quirks |= SA_QUIRK_2FM;
2112 * Now validate that some info we got makes sense.
2114 if ((softc->max_blk < softc->media_blksize) ||
2115 (softc->min_blk > softc->media_blksize &&
2116 softc->media_blksize)) {
2117 xpt_print(periph->path,
2118 "BLOCK LIMITS (%d..%d) could not match current "
2119 "block settings (%d)- adjusting\n", softc->min_blk,
2120 softc->max_blk, softc->media_blksize);
2121 softc->max_blk = softc->min_blk =
2122 softc->media_blksize;
2126 * Now put ourselves into the right frame of mind based
2131 * If we want to be in FIXED mode and our current blocksize
2132 * is not equal to our last blocksize (if nonzero), try and
2133 * set ourselves to this last blocksize (as the 'preferred'
2134 * block size). The initial quirkmatch at registry sets the
2135 * initial 'last' blocksize. If, for whatever reason, this
2136 * 'last' blocksize is zero, set the blocksize to 512,
2137 * or min_blk if that's larger.
2139 if ((softc->quirks & SA_QUIRK_FIXED) &&
2140 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 &&
2141 (softc->media_blksize != softc->last_media_blksize)) {
2142 softc->media_blksize = softc->last_media_blksize;
2143 if (softc->media_blksize == 0) {
2144 softc->media_blksize = 512;
2145 if (softc->media_blksize < softc->min_blk) {
2146 softc->media_blksize = softc->min_blk;
2149 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2150 softc->media_blksize, 0, 0, SF_NO_PRINT);
2152 xpt_print(periph->path,
2153 "unable to set fixed blocksize to %d\n",
2154 softc->media_blksize);
2159 if ((softc->quirks & SA_QUIRK_VARIABLE) &&
2160 (softc->media_blksize != 0)) {
2161 softc->last_media_blksize = softc->media_blksize;
2162 softc->media_blksize = 0;
2163 error = sasetparams(periph, SA_PARAM_BLOCKSIZE,
2164 0, 0, 0, SF_NO_PRINT);
2167 * If this fails and we were guessing, just
2168 * assume that we got it wrong and go try
2169 * fixed block mode. Don't even check against
2170 * density code at this point.
2173 softc->quirks &= ~SA_QUIRK_VARIABLE;
2174 softc->quirks |= SA_QUIRK_FIXED;
2175 if (softc->last_media_blksize == 0)
2176 softc->last_media_blksize = 512;
2179 xpt_print(periph->path,
2180 "unable to set variable blocksize\n");
2186 * Now that we have the current block size,
2187 * set up some parameters for sastart's usage.
2189 if (softc->media_blksize) {
2190 softc->flags |= SA_FLAG_FIXED;
2191 if (powerof2(softc->media_blksize)) {
2193 ffs(softc->media_blksize) - 1;
2194 softc->blk_mask = softc->media_blksize - 1;
2196 softc->blk_mask = ~0;
2197 softc->blk_shift = 0;
2201 * The SCSI-3 spec allows 0 to mean "unspecified".
2202 * The SCSI-1 spec allows 0 to mean 'infinite'.
2204 * Either works here.
2206 if (softc->max_blk == 0) {
2207 softc->max_blk = ~0;
2209 softc->blk_shift = 0;
2210 if (softc->blk_gran != 0) {
2211 softc->blk_mask = softc->blk_gran - 1;
2213 softc->blk_mask = 0;
2218 softc->flags |= SA_FLAG_TAPE_WP;
2220 if (comp_supported) {
2221 if (softc->saved_comp_algorithm == 0)
2222 softc->saved_comp_algorithm =
2223 softc->comp_algorithm;
2224 softc->flags |= SA_FLAG_COMP_SUPP;
2226 softc->flags |= SA_FLAG_COMP_ENABLED;
2228 softc->flags |= SA_FLAG_COMP_UNSUPP;
2230 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) &&
2231 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) {
2232 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0,
2235 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF;
2237 xpt_print(periph->path,
2238 "unable to set buffered mode\n");
2240 error = 0; /* not an error */
2245 softc->flags |= SA_FLAG_TAPE_MOUNTED;
2249 free(rblim, M_SCSISA);
2252 softc->dsreg = MTIO_DSREG_NIL;
2254 softc->fileno = softc->blkno = 0;
2255 softc->dsreg = MTIO_DSREG_REST;
2257 #ifdef SA_1FM_AT_EOD
2258 if ((softc->quirks & SA_QUIRK_2FM) == 0)
2259 softc->quirks |= SA_QUIRK_1FM;
2261 if ((softc->quirks & SA_QUIRK_1FM) == 0)
2262 softc->quirks |= SA_QUIRK_2FM;
2265 xpt_release_ccb(ccb);
2268 * If we return an error, we're not mounted any more,
2269 * so release any device reservation.
2272 (void) sareservereleaseunit(periph, FALSE);
2275 * Clear I/O residual.
2277 softc->last_io_resid = 0;
2278 softc->last_ctl_resid = 0;
2284 * How many filemarks do we need to write if we were to terminate the
2285 * tape session right now? Note that this can be a negative number
2289 samarkswanted(struct cam_periph *periph)
2292 struct sa_softc *softc;
2294 softc = (struct sa_softc *)periph->softc;
2296 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) {
2298 if (softc->quirks & SA_QUIRK_2FM)
2301 markswanted -= softc->filemarks;
2302 return (markswanted);
2306 sacheckeod(struct cam_periph *periph)
2311 markswanted = samarkswanted(periph);
2313 if (markswanted > 0) {
2314 error = sawritefilemarks(periph, markswanted, FALSE);
2322 saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs)
2324 static const char *toobig =
2325 "%d-byte tape record bigger than supplied buffer\n";
2326 struct cam_periph *periph;
2327 struct sa_softc *softc;
2328 struct ccb_scsiio *csio;
2329 struct scsi_sense_data *sense;
2333 int error_code, sense_key, asc, ascq, error, aqvalid, stream_valid;
2335 uint8_t stream_bits;
2337 periph = xpt_path_periph(ccb->ccb_h.path);
2338 softc = (struct sa_softc *)periph->softc;
2340 sense = &csio->sense_data;
2341 sense_len = csio->sense_len - csio->sense_resid;
2342 scsi_extract_sense_len(sense, sense_len, &error_code, &sense_key,
2343 &asc, &ascq, /*show_errors*/ 1);
2344 if (asc != -1 && ascq != -1)
2348 if (scsi_get_stream_info(sense, sense_len, NULL, &stream_bits) == 0)
2354 status = csio->ccb_h.status & CAM_STATUS_MASK;
2357 * Calculate/latch up, any residuals... We do this in a funny 2-step
2358 * so we can print stuff here if we have CAM_DEBUG enabled for this
2361 if (status == CAM_SCSI_STATUS_ERROR) {
2362 if (scsi_get_sense_info(sense, sense_len, SSD_DESC_INFO, &resid,
2364 if ((softc->flags & SA_FLAG_FIXED) != 0)
2365 resid *= softc->media_blksize;
2367 resid = csio->dxfer_len;
2369 if ((softc->flags & SA_FLAG_FIXED) != 0) {
2370 if (softc->media_blksize)
2371 info /= softc->media_blksize;
2374 if (CCB_Type(csio) == SA_CCB_BUFFER_IO) {
2375 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense,
2376 sizeof (struct scsi_sense_data));
2377 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb,
2378 (int) csio->cdb_len);
2379 softc->last_io_resid = resid;
2380 softc->last_resid_was_io = 1;
2382 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense,
2383 sizeof (struct scsi_sense_data));
2384 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb,
2385 (int) csio->cdb_len);
2386 softc->last_ctl_resid = resid;
2387 softc->last_resid_was_io = 0;
2389 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x "
2390 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %jd "
2391 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff,
2392 sense_key, asc, ascq, status,
2393 (stream_valid) ? stream_bits : 0, (intmax_t)resid,
2396 CAM_DEBUG(periph->path, CAM_DEBUG_INFO,
2397 ("Cam Status 0x%x\n", status));
2403 case CAM_SCSI_STATUS_ERROR:
2405 * If a read/write command, we handle it here.
2407 if (CCB_Type(csio) != SA_CCB_WAITING) {
2411 * If this was just EOM/EOP, Filemark, Setmark or ILI detected
2412 * on a non read/write command, we assume it's not an error
2413 * and propagate the residule and return.
2415 if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) ||
2416 (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) {
2417 csio->resid = resid;
2422 * Otherwise, we let the common code handle this.
2424 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2428 * We cannot depend upon CAM honoring retry counts for these.
2430 case CAM_SCSI_BUS_RESET:
2432 if (ccb->ccb_h.retry_count <= 0) {
2437 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb));
2441 * Handle filemark, end of tape, mismatched record sizes....
2442 * From this point out, we're only handling read/write cases.
2443 * Handle writes && reads differently.
2446 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) {
2447 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) {
2448 csio->resid = resid;
2450 } else if ((stream_valid != 0) && (stream_bits & SSD_EOM)) {
2451 softc->flags |= SA_FLAG_EOM_PENDING;
2453 * Grotesque as it seems, the few times
2454 * I've actually seen a non-zero resid,
2455 * the tape drive actually lied and had
2456 * written all the data!.
2461 csio->resid = resid;
2462 if (sense_key == SSD_KEY_BLANK_CHECK) {
2463 if (softc->quirks & SA_QUIRK_1FM) {
2465 softc->flags |= SA_FLAG_EOM_PENDING;
2469 } else if ((stream_valid != 0) && (stream_bits & SSD_FILEMARK)){
2470 if (softc->flags & SA_FLAG_FIXED) {
2472 softc->flags |= SA_FLAG_EOF_PENDING;
2475 * Unconditionally, if we detected a filemark on a read,
2476 * mark that we've run moved a file ahead.
2478 if (softc->fileno != (daddr_t) -1) {
2481 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED;
2487 * Incorrect Length usually applies to read, but can apply to writes.
2489 if (error == 0 && (stream_valid != 0) && (stream_bits & SSD_ILI)) {
2491 xpt_print(csio->ccb_h.path, toobig,
2492 csio->dxfer_len - info);
2493 csio->resid = csio->dxfer_len;
2496 csio->resid = resid;
2497 if (softc->flags & SA_FLAG_FIXED) {
2498 softc->flags |= SA_FLAG_EIO_PENDING;
2501 * Bump the block number if we hadn't seen a filemark.
2502 * Do this independent of errors (we've moved anyway).
2504 if ((stream_valid == 0) ||
2505 (stream_bits & SSD_FILEMARK) == 0) {
2506 if (softc->blkno != (daddr_t) -1) {
2508 csio->ccb_h.ccb_pflags |=
2509 SA_POSITION_UPDATED;
2517 * Unfreeze the queue if frozen as we're not returning anything
2518 * to our waiters that would indicate an I/O error has occurred
2528 sagetparams(struct cam_periph *periph, sa_params params_to_get,
2529 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks,
2530 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed,
2531 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm,
2536 struct scsi_mode_header_6 *mode_hdr;
2537 struct scsi_mode_blk_desc *mode_blk;
2538 int mode_buffer_len;
2539 struct sa_softc *softc;
2544 softc = (struct sa_softc *)periph->softc;
2545 ccb = cam_periph_getccb(periph, 1);
2546 if (softc->quirks & SA_QUIRK_NO_CPAGE)
2547 cpage = SA_DEVICE_CONFIGURATION_PAGE;
2549 cpage = SA_DATA_COMPRESSION_PAGE;
2552 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2554 if (params_to_get & SA_PARAM_COMPRESSION) {
2555 if (softc->quirks & SA_QUIRK_NOCOMP) {
2556 *comp_supported = FALSE;
2557 params_to_get &= ~SA_PARAM_COMPRESSION;
2559 mode_buffer_len += sizeof (sa_comp_t);
2562 /* XXX Fix M_NOWAIT */
2563 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO);
2564 if (mode_buffer == NULL) {
2565 xpt_release_ccb(ccb);
2568 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2569 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2571 /* it is safe to retry this */
2572 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2573 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ?
2574 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len,
2575 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
2577 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2578 softc->device_stats);
2581 status = ccb->ccb_h.status & CAM_STATUS_MASK;
2583 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) {
2585 * Hmm. Let's see if we can try another page...
2586 * If we've already done that, give up on compression
2587 * for this device and remember this for the future
2588 * and attempt the request without asking for compression
2591 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2592 cpage = SA_DEVICE_CONFIGURATION_PAGE;
2595 softc->quirks |= SA_QUIRK_NOCOMP;
2596 free(mode_buffer, M_SCSISA);
2598 } else if (status == CAM_SCSI_STATUS_ERROR) {
2599 /* Tell the user about the fatal error. */
2600 scsi_sense_print(&ccb->csio);
2601 goto sagetparamsexit;
2605 * If the user only wants the compression information, and
2606 * the device doesn't send back the block descriptor, it's
2607 * no big deal. If the user wants more than just
2608 * compression, though, and the device doesn't pass back the
2609 * block descriptor, we need to send another mode sense to
2610 * get the block descriptor.
2612 if ((mode_hdr->blk_desc_len == 0) &&
2613 (params_to_get & SA_PARAM_COMPRESSION) &&
2614 (params_to_get & ~(SA_PARAM_COMPRESSION))) {
2617 * Decrease the mode buffer length by the size of
2618 * the compression page, to make sure the data
2619 * there doesn't get overwritten.
2621 mode_buffer_len -= sizeof (sa_comp_t);
2624 * Now move the compression page that we presumably
2625 * got back down the memory chunk a little bit so
2626 * it doesn't get spammed.
2628 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t));
2629 bzero(&mode_hdr[0], sizeof (mode_hdr[0]));
2632 * Now, we issue another mode sense and just ask
2633 * for the block descriptor, etc.
2636 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
2637 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE,
2638 mode_buffer, mode_buffer_len, SSD_FULL_SIZE,
2641 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT,
2642 softc->device_stats);
2646 goto sagetparamsexit;
2649 if (params_to_get & SA_PARAM_BLOCKSIZE)
2650 *blocksize = scsi_3btoul(mode_blk->blklen);
2652 if (params_to_get & SA_PARAM_NUMBLOCKS)
2653 *numblocks = scsi_3btoul(mode_blk->nblocks);
2655 if (params_to_get & SA_PARAM_BUFF_MODE)
2656 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK;
2658 if (params_to_get & SA_PARAM_DENSITY)
2659 *density = mode_blk->density;
2661 if (params_to_get & SA_PARAM_WP)
2662 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE;
2664 if (params_to_get & SA_PARAM_SPEED)
2665 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK;
2667 if (params_to_get & SA_PARAM_COMPRESSION) {
2668 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1];
2669 if (cpage == SA_DATA_COMPRESSION_PAGE) {
2670 struct scsi_data_compression_page *cp = &ntcs->dcomp;
2672 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE;
2674 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE;
2675 *comp_algorithm = scsi_4btoul(cp->comp_algorithm);
2677 struct scsi_dev_conf_page *cp = &ntcs->dconf;
2679 * We don't really know whether this device supports
2680 * Data Compression if the algorithm field is
2681 * zero. Just say we do.
2683 *comp_supported = TRUE;
2685 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE;
2686 *comp_algorithm = cp->sel_comp_alg;
2689 bcopy(ntcs, tcs, sizeof (sa_comp_t));
2692 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2694 char *xyz = mode_buffer;
2695 xpt_print_path(periph->path);
2696 printf("Mode Sense Data=");
2697 for (idx = 0; idx < mode_buffer_len; idx++)
2698 printf(" 0x%02x", xyz[idx] & 0xff);
2704 xpt_release_ccb(ccb);
2705 free(mode_buffer, M_SCSISA);
2710 * The purpose of this function is to set one of four different parameters
2714 * - compression / compression algorithm
2717 * The assumption is that this will be called from saioctl(), and therefore
2718 * from a process context. Thus the waiting malloc calls below. If that
2719 * assumption ever changes, the malloc calls should be changed to be
2722 * Any or all of the four parameters may be set when this function is
2723 * called. It should handle setting more than one parameter at once.
2726 sasetparams(struct cam_periph *periph, sa_params params_to_set,
2727 u_int32_t blocksize, u_int8_t density, u_int32_t calg,
2728 u_int32_t sense_flags)
2730 struct sa_softc *softc;
2731 u_int32_t current_blocksize;
2732 u_int32_t current_calg;
2733 u_int8_t current_density;
2734 u_int8_t current_speed;
2735 int comp_enabled, comp_supported;
2737 int mode_buffer_len;
2738 struct scsi_mode_header_6 *mode_hdr;
2739 struct scsi_mode_blk_desc *mode_blk;
2740 sa_comp_t *ccomp, *cpage;
2742 union ccb *ccb = NULL;
2745 softc = (struct sa_softc *)periph->softc;
2747 ccomp = malloc(sizeof (sa_comp_t), M_SCSISA, M_NOWAIT);
2752 * Since it doesn't make sense to set the number of blocks, or
2753 * write protection, we won't try to get the current value. We
2754 * always want to get the blocksize, so we can set it back to the
2757 error = sagetparams(periph,
2758 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED,
2759 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL,
2760 ¤t_speed, &comp_supported, &comp_enabled,
2761 ¤t_calg, ccomp);
2764 free(ccomp, M_SCSISA);
2768 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk);
2769 if (params_to_set & SA_PARAM_COMPRESSION)
2770 mode_buffer_len += sizeof (sa_comp_t);
2772 mode_buffer = malloc(mode_buffer_len, M_SCSISA, M_NOWAIT | M_ZERO);
2773 if (mode_buffer == NULL) {
2774 free(ccomp, M_SCSISA);
2778 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer;
2779 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2781 ccb = cam_periph_getccb(periph, 1);
2785 if (params_to_set & SA_PARAM_COMPRESSION) {
2787 cpage = (sa_comp_t *)&mode_blk[1];
2789 cpage = (sa_comp_t *)&mode_hdr[1];
2791 bcopy(ccomp, cpage, sizeof (sa_comp_t));
2792 cpage->hdr.pagecode &= ~0x80;
2797 * If the caller wants us to set the blocksize, use the one they
2798 * pass in. Otherwise, use the blocksize we got back from the
2799 * mode select above.
2802 if (params_to_set & SA_PARAM_BLOCKSIZE)
2803 scsi_ulto3b(blocksize, mode_blk->blklen);
2805 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2808 * Set density if requested, else preserve old density.
2809 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2810 * devices, else density we've latched up in our softc.
2812 if (params_to_set & SA_PARAM_DENSITY) {
2813 mode_blk->density = density;
2814 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2815 mode_blk->density = SCSI_SAME_DENSITY;
2817 mode_blk->density = softc->media_density;
2822 * For mode selects, these two fields must be zero.
2824 mode_hdr->data_length = 0;
2825 mode_hdr->medium_type = 0;
2827 /* set the speed to the current value */
2828 mode_hdr->dev_spec = current_speed;
2830 /* if set, set single-initiator buffering mode */
2831 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) {
2832 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF;
2836 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc);
2838 mode_hdr->blk_desc_len = 0;
2841 * First, if the user wants us to set the compression algorithm or
2842 * just turn compression on, check to make sure that this drive
2843 * supports compression.
2845 if (params_to_set & SA_PARAM_COMPRESSION) {
2847 * If the compression algorithm is 0, disable compression.
2848 * If the compression algorithm is non-zero, enable
2849 * compression and set the compression type to the
2850 * specified compression algorithm, unless the algorithm is
2851 * MT_COMP_ENABLE. In that case, we look at the
2852 * compression algorithm that is currently set and if it is
2853 * non-zero, we leave it as-is. If it is zero, and we have
2854 * saved a compression algorithm from a time when
2855 * compression was enabled before, set the compression to
2858 switch (ccomp->hdr.pagecode & ~0x80) {
2859 case SA_DEVICE_CONFIGURATION_PAGE:
2861 struct scsi_dev_conf_page *dcp = &cpage->dconf;
2863 dcp->sel_comp_alg = SA_COMP_NONE;
2866 if (calg != MT_COMP_ENABLE) {
2867 dcp->sel_comp_alg = calg;
2868 } else if (dcp->sel_comp_alg == SA_COMP_NONE &&
2869 softc->saved_comp_algorithm != 0) {
2870 dcp->sel_comp_alg = softc->saved_comp_algorithm;
2874 case SA_DATA_COMPRESSION_PAGE:
2875 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) {
2876 struct scsi_data_compression_page *dcp = &cpage->dcomp;
2879 * Disable compression, but leave the
2880 * decompression and the capability bit
2883 dcp->dce_and_dcc = SA_DCP_DCC;
2884 dcp->dde_and_red |= SA_DCP_DDE;
2887 /* enable compression && decompression */
2888 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC;
2889 dcp->dde_and_red |= SA_DCP_DDE;
2891 * If there, use compression algorithm from caller.
2892 * Otherwise, if there's a saved compression algorithm
2893 * and there is no current algorithm, use the saved
2894 * algorithm. Else parrot back what we got and hope
2897 if (calg != MT_COMP_ENABLE) {
2898 scsi_ulto4b(calg, dcp->comp_algorithm);
2899 scsi_ulto4b(calg, dcp->decomp_algorithm);
2900 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 &&
2901 softc->saved_comp_algorithm != 0) {
2902 scsi_ulto4b(softc->saved_comp_algorithm,
2903 dcp->comp_algorithm);
2904 scsi_ulto4b(softc->saved_comp_algorithm,
2905 dcp->decomp_algorithm);
2910 * Compression does not appear to be supported-
2911 * at least via the DATA COMPRESSION page. It
2912 * would be too much to ask us to believe that
2913 * the page itself is supported, but incorrectly
2914 * reports an ability to manipulate data compression,
2915 * so we'll assume that this device doesn't support
2916 * compression. We can just fall through for that.
2921 * The drive doesn't seem to support compression,
2922 * so turn off the set compression bit.
2924 params_to_set &= ~SA_PARAM_COMPRESSION;
2925 xpt_print(periph->path,
2926 "device does not seem to support compression\n");
2929 * If that was the only thing the user wanted us to set,
2930 * clean up allocated resources and return with
2931 * 'operation not supported'.
2933 if (params_to_set == SA_PARAM_NONE) {
2934 free(mode_buffer, M_SCSISA);
2935 xpt_release_ccb(ccb);
2940 * That wasn't the only thing the user wanted us to set.
2941 * So, decrease the stated mode buffer length by the
2942 * size of the compression mode page.
2944 mode_buffer_len -= sizeof(sa_comp_t);
2948 /* It is safe to retry this operation */
2949 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
2950 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE,
2951 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
2953 error = cam_periph_runccb(ccb, saerror, 0,
2954 sense_flags, softc->device_stats);
2957 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
2959 char *xyz = mode_buffer;
2960 xpt_print_path(periph->path);
2961 printf("Err%d, Mode Select Data=", error);
2962 for (idx = 0; idx < mode_buffer_len; idx++)
2963 printf(" 0x%02x", xyz[idx] & 0xff);
2970 * If we can, try without setting density/blocksize.
2973 if ((params_to_set &
2974 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) {
2979 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1];
2980 cpage = (sa_comp_t *)&mode_blk[1];
2984 * If we were setting the blocksize, and that failed, we
2985 * want to set it to its original value. If we weren't
2986 * setting the blocksize, we don't want to change it.
2988 scsi_ulto3b(current_blocksize, mode_blk->blklen);
2991 * Set density if requested, else preserve old density.
2992 * SCSI_SAME_DENSITY only applies to SCSI-2 or better
2993 * devices, else density we've latched up in our softc.
2995 if (params_to_set & SA_PARAM_DENSITY) {
2996 mode_blk->density = current_density;
2997 } else if (softc->scsi_rev > SCSI_REV_CCS) {
2998 mode_blk->density = SCSI_SAME_DENSITY;
3000 mode_blk->density = softc->media_density;
3003 if (params_to_set & SA_PARAM_COMPRESSION)
3004 bcopy(ccomp, cpage, sizeof (sa_comp_t));
3007 * The retry count is the only CCB field that might have been
3008 * changed that we care about, so reset it back to 1.
3010 ccb->ccb_h.retry_count = 1;
3011 cam_periph_runccb(ccb, saerror, 0, sense_flags,
3012 softc->device_stats);
3016 xpt_release_ccb(ccb);
3019 free(ccomp, M_SCSISA);
3021 if (params_to_set & SA_PARAM_COMPRESSION) {
3023 softc->flags &= ~SA_FLAG_COMP_ENABLED;
3025 * Even if we get an error setting compression,
3026 * do not say that we don't support it. We could
3027 * have been wrong, or it may be media specific.
3028 * softc->flags &= ~SA_FLAG_COMP_SUPP;
3030 softc->saved_comp_algorithm = softc->comp_algorithm;
3031 softc->comp_algorithm = 0;
3033 softc->flags |= SA_FLAG_COMP_ENABLED;
3034 softc->comp_algorithm = calg;
3038 free(mode_buffer, M_SCSISA);
3043 saprevent(struct cam_periph *periph, int action)
3045 struct sa_softc *softc;
3049 softc = (struct sa_softc *)periph->softc;
3051 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0)
3053 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0)
3057 * We can be quiet about illegal requests.
3059 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) {
3064 ccb = cam_periph_getccb(periph, 1);
3066 /* It is safe to retry this operation */
3067 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action,
3068 SSD_FULL_SIZE, SCSIOP_TIMEOUT);
3070 error = cam_periph_runccb(ccb, saerror, 0, sf, softc->device_stats);
3073 if (action == PR_ALLOW)
3074 softc->flags &= ~SA_FLAG_TAPE_LOCKED;
3076 softc->flags |= SA_FLAG_TAPE_LOCKED;
3079 xpt_release_ccb(ccb);
3083 sarewind(struct cam_periph *periph)
3086 struct sa_softc *softc;
3089 softc = (struct sa_softc *)periph->softc;
3091 ccb = cam_periph_getccb(periph, 1);
3093 /* It is safe to retry this operation */
3094 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3095 SSD_FULL_SIZE, REWIND_TIMEOUT);
3097 softc->dsreg = MTIO_DSREG_REW;
3098 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3099 softc->dsreg = MTIO_DSREG_REST;
3101 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3102 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3104 xpt_release_ccb(ccb);
3106 softc->fileno = softc->blkno = (daddr_t) 0;
3108 softc->fileno = softc->blkno = (daddr_t) -1;
3113 saspace(struct cam_periph *periph, int count, scsi_space_code code)
3116 struct sa_softc *softc;
3119 softc = (struct sa_softc *)periph->softc;
3121 ccb = cam_periph_getccb(periph, 1);
3123 /* This cannot be retried */
3125 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count,
3126 SSD_FULL_SIZE, SPACE_TIMEOUT);
3129 * Clear residual because we will be using it.
3131 softc->last_ctl_resid = 0;
3133 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD;
3134 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3135 softc->dsreg = MTIO_DSREG_REST;
3137 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3138 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3140 xpt_release_ccb(ccb);
3143 * If a spacing operation has failed, we need to invalidate
3146 * If the spacing operation was setmarks or to end of recorded data,
3147 * we no longer know our relative position.
3149 * If the spacing operations was spacing files in reverse, we
3150 * take account of the residual, but still check against less
3151 * than zero- if we've gone negative, we must have hit BOT.
3153 * If the spacing operations was spacing records in reverse and
3154 * we have a residual, we've either hit BOT or hit a filemark.
3155 * In the former case, we know our new record number (0). In
3156 * the latter case, we have absolutely no idea what the real
3157 * record number is- we've stopped between the end of the last
3158 * record in the previous file and the filemark that stopped
3159 * our spacing backwards.
3162 softc->fileno = softc->blkno = (daddr_t) -1;
3163 } else if (code == SS_SETMARKS || code == SS_EOD) {
3164 softc->fileno = softc->blkno = (daddr_t) -1;
3165 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) {
3166 softc->fileno += (count - softc->last_ctl_resid);
3167 if (softc->fileno < 0) /* we must of hit BOT */
3170 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) {
3171 softc->blkno += (count - softc->last_ctl_resid);
3173 if (softc->last_ctl_resid || softc->blkno < 0) {
3174 if (softc->fileno == 0) {
3177 softc->blkno = (daddr_t) -1;
3186 sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks)
3189 struct sa_softc *softc;
3192 softc = (struct sa_softc *)periph->softc;
3193 if (softc->open_rdonly)
3196 ccb = cam_periph_getccb(periph, 1);
3198 * Clear residual because we will be using it.
3200 softc->last_ctl_resid = 0;
3202 softc->dsreg = MTIO_DSREG_FMK;
3203 /* this *must* not be retried */
3204 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG,
3205 FALSE, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT);
3206 softc->dsreg = MTIO_DSREG_REST;
3209 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3211 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3212 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3214 if (error == 0 && nmarks) {
3215 struct sa_softc *softc = (struct sa_softc *)periph->softc;
3216 nwm = nmarks - softc->last_ctl_resid;
3217 softc->filemarks += nwm;
3220 xpt_release_ccb(ccb);
3223 * Update relative positions (if we're doing that).
3226 softc->fileno = softc->blkno = (daddr_t) -1;
3227 } else if (softc->fileno != (daddr_t) -1) {
3228 softc->fileno += nwm;
3235 sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3237 struct scsi_tape_position_data loc;
3239 struct sa_softc *softc = (struct sa_softc *)periph->softc;
3243 * We try and flush any buffered writes here if we were writing
3244 * and we're trying to get hardware block position. It eats
3245 * up performance substantially, but I'm wary of drive firmware.
3247 * I think that *logical* block position is probably okay-
3248 * but hardware block position might have to wait for data
3249 * to hit media to be valid. Caveat Emptor.
3252 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) {
3253 error = sawritefilemarks(periph, 0, 0);
3254 if (error && error != EACCES)
3258 ccb = cam_periph_getccb(periph, 1);
3259 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3260 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT);
3261 softc->dsreg = MTIO_DSREG_RBSY;
3262 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3263 softc->dsreg = MTIO_DSREG_REST;
3264 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3265 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3268 if (loc.flags & SA_RPOS_UNCERTAIN) {
3269 error = EINVAL; /* nothing is certain */
3271 *blkptr = scsi_4btoul(loc.firstblk);
3275 xpt_release_ccb(ccb);
3280 sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr)
3283 struct sa_softc *softc;
3287 * We used to try and flush any buffered writes here.
3288 * Now we push this onto user applications to either
3289 * flush the pending writes themselves (via a zero count
3290 * WRITE FILEMARKS command) or they can trust their tape
3291 * drive to do this correctly for them.
3294 softc = (struct sa_softc *)periph->softc;
3295 ccb = cam_periph_getccb(periph, 1);
3298 scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG,
3299 hard, *blkptr, SSD_FULL_SIZE, SPACE_TIMEOUT);
3302 softc->dsreg = MTIO_DSREG_POS;
3303 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3304 softc->dsreg = MTIO_DSREG_REST;
3305 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3306 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0);
3307 xpt_release_ccb(ccb);
3309 * Note relative file && block number position as now unknown.
3311 softc->fileno = softc->blkno = (daddr_t) -1;
3316 saretension(struct cam_periph *periph)
3319 struct sa_softc *softc;
3322 softc = (struct sa_softc *)periph->softc;
3324 ccb = cam_periph_getccb(periph, 1);
3326 /* It is safe to retry this operation */
3327 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3328 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT);
3330 softc->dsreg = MTIO_DSREG_TEN;
3331 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3332 softc->dsreg = MTIO_DSREG_REST;
3334 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3335 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3336 xpt_release_ccb(ccb);
3338 softc->fileno = softc->blkno = (daddr_t) 0;
3340 softc->fileno = softc->blkno = (daddr_t) -1;
3345 sareservereleaseunit(struct cam_periph *periph, int reserve)
3348 struct sa_softc *softc;
3351 softc = (struct sa_softc *)periph->softc;
3352 ccb = cam_periph_getccb(periph, 1);
3354 /* It is safe to retry this operation */
3355 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG,
3356 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve);
3357 softc->dsreg = MTIO_DSREG_RBSY;
3358 error = cam_periph_runccb(ccb, saerror, 0,
3359 SF_RETRY_UA | SF_NO_PRINT, softc->device_stats);
3360 softc->dsreg = MTIO_DSREG_REST;
3362 xpt_release_ccb(ccb);
3365 * If the error was Illegal Request, then the device doesn't support
3366 * RESERVE/RELEASE. This is not an error.
3368 if (error == EINVAL) {
3376 saloadunload(struct cam_periph *periph, int load)
3379 struct sa_softc *softc;
3382 softc = (struct sa_softc *)periph->softc;
3384 ccb = cam_periph_getccb(periph, 1);
3386 /* It is safe to retry this operation */
3387 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE,
3388 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT);
3390 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL;
3391 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3392 softc->dsreg = MTIO_DSREG_REST;
3394 xpt_release_ccb(ccb);
3396 if (error || load == 0)
3397 softc->fileno = softc->blkno = (daddr_t) -1;
3398 else if (error == 0)
3399 softc->fileno = softc->blkno = (daddr_t) 0;
3404 saerase(struct cam_periph *periph, int longerase)
3408 struct sa_softc *softc;
3411 softc = (struct sa_softc *)periph->softc;
3412 if (softc->open_rdonly)
3415 ccb = cam_periph_getccb(periph, 1);
3417 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase,
3418 SSD_FULL_SIZE, ERASE_TIMEOUT);
3420 softc->dsreg = MTIO_DSREG_ZER;
3421 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats);
3422 softc->dsreg = MTIO_DSREG_REST;
3424 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3425 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
3426 xpt_release_ccb(ccb);
3430 #endif /* _KERNEL */
3433 * Read tape block limits command.
3436 scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries,
3437 void (*cbfcnp)(struct cam_periph *, union ccb *),
3438 u_int8_t tag_action,
3439 struct scsi_read_block_limits_data *rlimit_buf,
3440 u_int8_t sense_len, u_int32_t timeout)
3442 struct scsi_read_block_limits *scsi_cmd;
3444 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3445 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len,
3446 sizeof(*scsi_cmd), timeout);
3448 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes;
3449 bzero(scsi_cmd, sizeof(*scsi_cmd));
3450 scsi_cmd->opcode = READ_BLOCK_LIMITS;
3454 scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries,
3455 void (*cbfcnp)(struct cam_periph *, union ccb *),
3456 u_int8_t tag_action, int readop, int sli,
3457 int fixed, u_int32_t length, u_int8_t *data_ptr,
3458 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout)
3460 struct scsi_sa_rw *scsi_cmd;
3462 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes;
3463 scsi_cmd->opcode = readop ? SA_READ : SA_WRITE;
3464 scsi_cmd->sli_fixed = 0;
3466 scsi_cmd->sli_fixed |= SAR_SLI;
3468 scsi_cmd->sli_fixed |= SARW_FIXED;
3469 scsi_ulto3b(length, scsi_cmd->length);
3470 scsi_cmd->control = 0;
3472 cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT,
3473 tag_action, data_ptr, dxfer_len, sense_len,
3474 sizeof(*scsi_cmd), timeout);
3478 scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries,
3479 void (*cbfcnp)(struct cam_periph *, union ccb *),
3480 u_int8_t tag_action, int immediate, int eot,
3481 int reten, int load, u_int8_t sense_len,
3484 struct scsi_load_unload *scsi_cmd;
3486 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes;
3487 bzero(scsi_cmd, sizeof(*scsi_cmd));
3488 scsi_cmd->opcode = LOAD_UNLOAD;
3490 scsi_cmd->immediate = SLU_IMMED;
3492 scsi_cmd->eot_reten_load |= SLU_EOT;
3494 scsi_cmd->eot_reten_load |= SLU_RETEN;
3496 scsi_cmd->eot_reten_load |= SLU_LOAD;
3498 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3499 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout);
3503 scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries,
3504 void (*cbfcnp)(struct cam_periph *, union ccb *),
3505 u_int8_t tag_action, int immediate, u_int8_t sense_len,
3508 struct scsi_rewind *scsi_cmd;
3510 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes;
3511 bzero(scsi_cmd, sizeof(*scsi_cmd));
3512 scsi_cmd->opcode = REWIND;
3514 scsi_cmd->immediate = SREW_IMMED;
3516 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3517 0, sense_len, sizeof(*scsi_cmd), timeout);
3521 scsi_space(struct ccb_scsiio *csio, u_int32_t retries,
3522 void (*cbfcnp)(struct cam_periph *, union ccb *),
3523 u_int8_t tag_action, scsi_space_code code,
3524 u_int32_t count, u_int8_t sense_len, u_int32_t timeout)
3526 struct scsi_space *scsi_cmd;
3528 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes;
3529 scsi_cmd->opcode = SPACE;
3530 scsi_cmd->code = code;
3531 scsi_ulto3b(count, scsi_cmd->count);
3532 scsi_cmd->control = 0;
3534 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3535 0, sense_len, sizeof(*scsi_cmd), timeout);
3539 scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries,
3540 void (*cbfcnp)(struct cam_periph *, union ccb *),
3541 u_int8_t tag_action, int immediate, int setmark,
3542 u_int32_t num_marks, u_int8_t sense_len,
3545 struct scsi_write_filemarks *scsi_cmd;
3547 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes;
3548 bzero(scsi_cmd, sizeof(*scsi_cmd));
3549 scsi_cmd->opcode = WRITE_FILEMARKS;
3551 scsi_cmd->byte2 |= SWFMRK_IMMED;
3553 scsi_cmd->byte2 |= SWFMRK_WSMK;
3555 scsi_ulto3b(num_marks, scsi_cmd->num_marks);
3557 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3558 0, sense_len, sizeof(*scsi_cmd), timeout);
3562 * The reserve and release unit commands differ only by their opcodes.
3565 scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries,
3566 void (*cbfcnp)(struct cam_periph *, union ccb *),
3567 u_int8_t tag_action, int third_party,
3568 int third_party_id, u_int8_t sense_len,
3569 u_int32_t timeout, int reserve)
3571 struct scsi_reserve_release_unit *scsi_cmd;
3573 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes;
3574 bzero(scsi_cmd, sizeof(*scsi_cmd));
3577 scsi_cmd->opcode = RESERVE_UNIT;
3579 scsi_cmd->opcode = RELEASE_UNIT;
3582 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY;
3583 scsi_cmd->lun_thirdparty |=
3584 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK);
3587 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3588 0, sense_len, sizeof(*scsi_cmd), timeout);
3592 scsi_erase(struct ccb_scsiio *csio, u_int32_t retries,
3593 void (*cbfcnp)(struct cam_periph *, union ccb *),
3594 u_int8_t tag_action, int immediate, int long_erase,
3595 u_int8_t sense_len, u_int32_t timeout)
3597 struct scsi_erase *scsi_cmd;
3599 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes;
3600 bzero(scsi_cmd, sizeof(*scsi_cmd));
3602 scsi_cmd->opcode = ERASE;
3605 scsi_cmd->lun_imm_long |= SE_IMMED;
3608 scsi_cmd->lun_imm_long |= SE_LONG;
3610 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL,
3611 0, sense_len, sizeof(*scsi_cmd), timeout);
3615 * Read Tape Position command.
3618 scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries,
3619 void (*cbfcnp)(struct cam_periph *, union ccb *),
3620 u_int8_t tag_action, int hardsoft,
3621 struct scsi_tape_position_data *sbp,
3622 u_int8_t sense_len, u_int32_t timeout)
3624 struct scsi_tape_read_position *scmd;
3626 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action,
3627 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout);
3628 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes;
3629 bzero(scmd, sizeof(*scmd));
3630 scmd->opcode = READ_POSITION;
3631 scmd->byte1 = hardsoft;
3635 * Set Tape Position command.
3638 scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries,
3639 void (*cbfcnp)(struct cam_periph *, union ccb *),
3640 u_int8_t tag_action, int hardsoft, u_int32_t blkno,
3641 u_int8_t sense_len, u_int32_t timeout)
3643 struct scsi_tape_locate *scmd;
3645 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action,
3646 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout);
3647 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes;
3648 bzero(scmd, sizeof(*scmd));
3649 scmd->opcode = LOCATE;
3651 scmd->byte1 |= SA_SPOS_BT;
3652 scsi_ulto4b(blkno, scmd->blkaddr);