2 * Copyright (c) 1997 Justin T. Gibbs.
3 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/cam/scsi/scsi_ch.c,v 1.20.2.2 2000/10/31 08:09:49 dwmalone Exp $
30 * Derived from the NetBSD SCSI changer driver.
32 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $
36 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
37 * All rights reserved.
39 * Partially based on an autochanger driver written by Stefan Grefen
40 * and on an autochanger driver written by the Systems Programming Group
41 * at the University of Utah Computer Science Department.
43 * Redistribution and use in source and binary forms, with or without
44 * modification, are permitted provided that the following conditions
46 * 1. Redistributions of source code must retain the above copyright
47 * notice, this list of conditions and the following disclaimer.
48 * 2. Redistributions in binary form must reproduce the above copyright
49 * notice, this list of conditions and the following disclaimer in the
50 * documentation and/or other materials provided with the distribution.
51 * 3. All advertising materials mentioning features or use of this software
52 * must display the following acknowledgements:
53 * This product includes software developed by Jason R. Thorpe
54 * for And Communications, http://www.and.com/
55 * 4. The name of the author may not be used to endorse or promote products
56 * derived from this software without specific prior written permission.
58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
63 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
64 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
65 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
66 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71 #include <sys/param.h>
72 #include <sys/queue.h>
73 #include <sys/systm.h>
74 #include <sys/kernel.h>
75 #include <sys/types.h>
76 #include <sys/malloc.h>
77 #include <sys/fcntl.h>
81 #include <sys/errno.h>
82 #include <sys/devicestat.h>
83 #include <sys/thread2.h>
86 #include "../cam_ccb.h"
87 #include "../cam_extend.h"
88 #include "../cam_periph.h"
89 #include "../cam_xpt_periph.h"
90 #include "../cam_queue.h"
91 #include "../cam_debug.h"
94 #include "scsi_message.h"
98 * Timeout definitions for various changer related commands. They may
99 * be too short for some devices (especially the timeout for INITIALIZE
103 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000;
104 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000;
105 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000;
106 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000;
107 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000;
108 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
109 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
112 CH_FLAG_INVALID = 0x001,
131 #define ccb_state ppriv_field0
132 #define ccb_bio ppriv_ptr1
134 struct scsi_mode_sense_data {
135 struct scsi_mode_header_6 header;
136 struct scsi_mode_blk_desc blk_desc;
138 struct page_element_address_assignment ea;
139 struct page_transport_geometry_parameters tg;
140 struct page_device_capabilities cap;
149 struct devstat device_stats;
151 int sc_picker; /* current picker */
154 * The following information is obtained from the
155 * element address assignment page.
157 int sc_firsts[CHET_MAX + 1]; /* firsts */
158 int sc_counts[CHET_MAX + 1]; /* counts */
161 * The following mask defines the legal combinations
162 * of elements for the MOVE MEDIUM command.
164 u_int8_t sc_movemask[CHET_MAX + 1];
167 * As above, but for EXCHANGE MEDIUM.
169 u_int8_t sc_exchangemask[CHET_MAX + 1];
172 * Quirks; see below. XXX KDM not implemented yet
174 int sc_settledelay; /* delay for settle */
177 #define CHUNIT(x) (minor((x)))
179 static d_open_t chopen;
180 static d_close_t chclose;
181 static d_ioctl_t chioctl;
182 static periph_init_t chinit;
183 static periph_ctor_t chregister;
184 static periph_oninv_t choninvalidate;
185 static periph_dtor_t chcleanup;
186 static periph_start_t chstart;
187 static void chasync(void *callback_arg, u_int32_t code,
188 struct cam_path *path, void *arg);
189 static void chdone(struct cam_periph *periph,
190 union ccb *done_ccb);
191 static int cherror(union ccb *ccb, u_int32_t cam_flags,
192 u_int32_t sense_flags);
193 static int chmove(struct cam_periph *periph,
194 struct changer_move *cm);
195 static int chexchange(struct cam_periph *periph,
196 struct changer_exchange *ce);
197 static int chposition(struct cam_periph *periph,
198 struct changer_position *cp);
199 static int chgetelemstatus(struct cam_periph *periph,
200 struct changer_element_status_request *csr);
201 static int chsetvoltag(struct cam_periph *periph,
202 struct changer_set_voltag_request *csvr);
203 static int chielem(struct cam_periph *periph,
204 unsigned int timeout);
205 static int chgetparams(struct cam_periph *periph);
207 static struct periph_driver chdriver =
210 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
213 PERIPHDRIVER_DECLARE(ch, chdriver);
215 static struct dev_ops ch_ops = {
222 static struct extend_array *chperiphs;
224 MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
232 * Create our extend array for storing the devices we attach to.
234 chperiphs = cam_extend_new();
235 if (chperiphs == NULL) {
236 kprintf("ch: Failed to alloc extend array!\n");
241 * Install a global async callback. This callback will
242 * receive async callbacks like "new device found".
244 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
246 if (status != CAM_REQ_CMP) {
247 kprintf("ch: Failed to attach master async callback "
248 "due to status 0x%x!\n", status);
253 choninvalidate(struct cam_periph *periph)
255 struct ch_softc *softc;
257 softc = (struct ch_softc *)periph->softc;
260 * De-register any async callbacks.
262 xpt_register_async(0, chasync, periph, periph->path);
264 softc->flags |= CH_FLAG_INVALID;
266 xpt_print(periph->path, "lost device\n");
271 chcleanup(struct cam_periph *periph)
273 struct ch_softc *softc;
275 softc = (struct ch_softc *)periph->softc;
277 devstat_remove_entry(&softc->device_stats);
278 cam_extend_release(chperiphs, periph->unit_number);
279 xpt_print(periph->path, "removing device entry\n");
280 dev_ops_remove_minor(&ch_ops, periph->unit_number);
281 kfree(softc, M_DEVBUF);
285 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
287 struct cam_periph *periph;
289 periph = (struct cam_periph *)callback_arg;
292 case AC_FOUND_DEVICE:
294 struct ccb_getdev *cgd;
297 cgd = (struct ccb_getdev *)arg;
301 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
305 * Allocate a peripheral instance for
306 * this device and start the probe
309 status = cam_periph_alloc(chregister, choninvalidate,
310 chcleanup, chstart, "ch",
311 CAM_PERIPH_BIO, cgd->ccb_h.path,
312 chasync, AC_FOUND_DEVICE, cgd);
314 if (status != CAM_REQ_CMP
315 && status != CAM_REQ_INPROG)
316 kprintf("chasync: Unable to probe new device "
317 "due to status 0x%x\n", status);
323 cam_periph_async(periph, code, path, arg);
329 chregister(struct cam_periph *periph, void *arg)
331 struct ch_softc *softc;
332 struct ccb_getdev *cgd;
334 cgd = (struct ccb_getdev *)arg;
335 if (periph == NULL) {
336 kprintf("chregister: periph was NULL!!\n");
337 return(CAM_REQ_CMP_ERR);
341 kprintf("chregister: no getdev CCB, can't register device\n");
342 return(CAM_REQ_CMP_ERR);
345 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
346 softc->state = CH_STATE_PROBE;
347 periph->softc = softc;
348 cam_extend_set(chperiphs, periph->unit_number, periph);
349 softc->quirks = CH_Q_NONE;
352 * Changers don't have a blocksize, and obviously don't support
355 cam_periph_unlock(periph);
356 devstat_add_entry(&softc->device_stats, "ch",
357 periph->unit_number, 0,
358 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
359 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI,
360 DEVSTAT_PRIORITY_OTHER);
362 /* Register the device */
363 make_dev(&ch_ops, periph->unit_number, UID_ROOT,
364 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
365 periph->unit_number);
366 cam_periph_lock(periph);
369 * Add an async callback so that we get
370 * notified if this device goes away.
372 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
375 * Lock this periph until we are setup.
376 * This first call can't block
378 cam_periph_hold(periph, 0);
379 xpt_schedule(periph, /*priority*/5);
385 chopen(struct dev_open_args *ap)
387 cdev_t dev = ap->a_head.a_dev;
388 struct cam_periph *periph;
389 struct ch_softc *softc;
393 periph = cam_extend_get(chperiphs, unit);
395 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
398 softc = (struct ch_softc *)periph->softc;
400 cam_periph_lock(periph);
402 if (softc->flags & CH_FLAG_INVALID) {
403 cam_periph_unlock(periph);
404 cam_periph_release(periph);
408 if ((softc->flags & CH_FLAG_OPEN) == 0)
409 softc->flags |= CH_FLAG_OPEN;
411 cam_periph_release(periph);
413 if ((error = cam_periph_hold(periph, PCATCH)) != 0) {
414 cam_periph_unlock(periph);
415 cam_periph_release(periph);
420 * Load information about this changer device into the softc.
422 if ((error = chgetparams(periph)) != 0) {
423 softc->flags &= ~CH_FLAG_OPEN;
424 cam_periph_unhold(periph, 1);
425 cam_periph_release(periph);
427 cam_periph_unhold(periph, 1);
434 chclose(struct dev_close_args *ap)
436 cdev_t dev = ap->a_head.a_dev;
437 struct cam_periph *periph;
438 struct ch_softc *softc;
444 periph = cam_extend_get(chperiphs, unit);
448 softc = (struct ch_softc *)periph->softc;
450 cam_periph_lock(periph);
452 softc->flags &= ~CH_FLAG_OPEN;
454 cam_periph_unlock(periph);
455 cam_periph_release(periph);
461 chstart(struct cam_periph *periph, union ccb *start_ccb)
463 struct ch_softc *softc;
465 softc = (struct ch_softc *)periph->softc;
467 switch (softc->state) {
468 case CH_STATE_NORMAL:
470 if (periph->immediate_priority <= periph->pinfo.priority){
471 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING;
473 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
475 periph->immediate_priority = CAM_PRIORITY_NONE;
476 wakeup(&periph->ccb_list);
486 * Include the block descriptor when calculating the mode
489 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
490 sizeof(struct scsi_mode_blk_desc) +
491 sizeof(struct page_element_address_assignment);
493 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO);
495 * Get the element address assignment page.
497 scsi_mode_sense(&start_ccb->csio,
500 /* tag_action */ MSG_SIMPLE_Q_TAG,
501 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
503 /* page_code */ SMS_PAGE_CTRL_CURRENT,
504 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
505 /* param_buf */ (u_int8_t *)mode_buffer,
506 /* param_len */ mode_buffer_len,
507 /* sense_len */ SSD_FULL_SIZE,
508 /* timeout */ CH_TIMEOUT_MODE_SENSE);
510 start_ccb->ccb_h.ccb_bio = NULL;
511 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
512 xpt_action(start_ccb);
519 chdone(struct cam_periph *periph, union ccb *done_ccb)
521 struct ch_softc *softc;
522 struct ccb_scsiio *csio;
524 softc = (struct ch_softc *)periph->softc;
525 csio = &done_ccb->csio;
527 switch(done_ccb->ccb_h.ccb_state) {
530 struct scsi_mode_header_6 *mode_header;
531 struct page_element_address_assignment *ea;
532 char announce_buf[80];
535 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
537 ea = (struct page_element_address_assignment *)
538 find_mode_page_6(mode_header);
540 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
542 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
543 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
544 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
545 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
546 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
547 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
548 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
549 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
550 softc->sc_picker = softc->sc_firsts[CHET_MT];
552 #define PLURAL(c) (c) == 1 ? "" : "s"
553 ksnprintf(announce_buf, sizeof(announce_buf),
554 "%d slot%s, %d drive%s, "
555 "%d picker%s, %d portal%s",
556 softc->sc_counts[CHET_ST],
557 PLURAL(softc->sc_counts[CHET_ST]),
558 softc->sc_counts[CHET_DT],
559 PLURAL(softc->sc_counts[CHET_DT]),
560 softc->sc_counts[CHET_MT],
561 PLURAL(softc->sc_counts[CHET_MT]),
562 softc->sc_counts[CHET_IE],
563 PLURAL(softc->sc_counts[CHET_IE]));
568 error = cherror(done_ccb, CAM_RETRY_SELTO,
569 SF_RETRY_UA | SF_NO_PRINT);
571 * Retry any UNIT ATTENTION type errors. They
572 * are expected at boot.
574 if (error == ERESTART) {
576 * A retry was scheuled, so
580 } else if (error != 0) {
582 struct scsi_mode_sense_6 *sms;
584 sms = (struct scsi_mode_sense_6 *)
585 done_ccb->csio.cdb_io.cdb_bytes;
588 * Check to see if block descriptors were
589 * disabled. Some devices don't like that.
590 * We're taking advantage of the fact that
591 * the first few bytes of the 6 and 10 byte
592 * mode sense commands are the same. If
593 * block descriptors were disabled, enable
594 * them and re-send the command.
596 if (sms->byte2 & SMS_DBD) {
597 sms->byte2 &= ~SMS_DBD;
598 xpt_action(done_ccb);
599 softc->quirks |= CH_Q_NO_DBD;
604 /* Don't wedge this device's queue */
605 cam_release_devq(done_ccb->ccb_h.path,
614 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
615 == CAM_SCSI_STATUS_ERROR)
616 scsi_sense_print(&done_ccb->csio);
618 xpt_print(periph->path,
619 "got CAM status %#x\n",
620 done_ccb->ccb_h.status);
622 xpt_print(periph->path, "fatal error, failed "
623 "to attach to device\n");
625 cam_periph_invalidate(periph);
627 announce_buf[0] = '\0';
630 if (announce_buf[0] != '\0')
631 xpt_announce_periph(periph, announce_buf);
632 softc->state = CH_STATE_NORMAL;
633 kfree(mode_header, M_SCSICH);
635 * Since our peripheral may be invalidated by an error
636 * above or an external event, we must release our CCB
637 * before releasing the probe lock on the peripheral.
638 * The peripheral will only go away once the last lock
639 * is removed, and we need it around for the CCB release
642 xpt_release_ccb(done_ccb);
643 cam_periph_unhold(periph, 0);
648 /* Caller will release the CCB */
649 wakeup(&done_ccb->ccb_h.cbfcnp);
655 xpt_release_ccb(done_ccb);
659 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
661 struct ch_softc *softc;
662 struct cam_periph *periph;
664 periph = xpt_path_periph(ccb->ccb_h.path);
665 softc = (struct ch_softc *)periph->softc;
667 return (cam_periph_error(ccb, cam_flags, sense_flags,
672 chioctl(struct dev_ioctl_args *ap)
674 cdev_t dev = ap->a_head.a_dev;
675 caddr_t addr = ap->a_data;
676 int flag = ap->a_fflag;
677 struct cam_periph *periph;
678 struct ch_softc *softc;
684 periph = cam_extend_get(chperiphs, unit);
688 cam_periph_lock(periph);
689 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
691 softc = (struct ch_softc *)periph->softc;
695 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
696 ("trying to do ioctl %#lx\n", ap->a_cmd));
699 * If this command can change the device's state, we must
700 * have the device open for writing.
709 if ((flag & FWRITE) == 0) {
710 cam_periph_unlock(periph);
717 error = chmove(periph, (struct changer_move *)addr);
721 error = chexchange(periph, (struct changer_exchange *)addr);
725 error = chposition(periph, (struct changer_position *)addr);
729 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
734 int new_picker = *(int *)addr;
736 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
740 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
745 struct changer_params *cp = (struct changer_params *)addr;
747 cp->cp_npickers = softc->sc_counts[CHET_MT];
748 cp->cp_nslots = softc->sc_counts[CHET_ST];
749 cp->cp_nportals = softc->sc_counts[CHET_IE];
750 cp->cp_ndrives = softc->sc_counts[CHET_DT];
754 error = chielem(periph, *(unsigned int *)addr);
759 error = chgetelemstatus(periph,
760 (struct changer_element_status_request *) addr);
766 error = chsetvoltag(periph,
767 (struct changer_set_voltag_request *) addr);
771 /* Implement prevent/allow? */
774 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror);
778 cam_periph_unlock(periph);
783 chmove(struct cam_periph *periph, struct changer_move *cm)
785 struct ch_softc *softc;
786 u_int16_t fromelem, toelem;
791 softc = (struct ch_softc *)periph->softc;
796 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
798 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
799 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
803 * Check the request against the changer's capabilities.
805 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
809 * Calculate the source and destination elements.
811 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
812 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
814 ccb = cam_periph_getccb(periph, /*priority*/ 1);
816 scsi_move_medium(&ccb->csio,
819 /* tag_action */ MSG_SIMPLE_Q_TAG,
820 /* tea */ softc->sc_picker,
823 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
824 /* sense_len */ SSD_FULL_SIZE,
825 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
827 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
828 /*sense_flags*/ SF_RETRY_UA,
829 &softc->device_stats);
831 xpt_release_ccb(ccb);
837 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
839 struct ch_softc *softc;
840 u_int16_t src, dst1, dst2;
845 softc = (struct ch_softc *)periph->softc;
849 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
850 (ce->ce_sdsttype > CHET_DT))
852 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
853 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
854 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
858 * Check the request against the changer's capabilities.
860 if (((softc->sc_exchangemask[ce->ce_srctype] &
861 (1 << ce->ce_fdsttype)) == 0) ||
862 ((softc->sc_exchangemask[ce->ce_fdsttype] &
863 (1 << ce->ce_sdsttype)) == 0))
867 * Calculate the source and destination elements.
869 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
870 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
871 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
873 ccb = cam_periph_getccb(periph, /*priority*/ 1);
875 scsi_exchange_medium(&ccb->csio,
878 /* tag_action */ MSG_SIMPLE_Q_TAG,
879 /* tea */ softc->sc_picker,
883 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
885 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
887 /* sense_len */ SSD_FULL_SIZE,
888 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
890 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
891 /*sense_flags*/ SF_RETRY_UA,
892 &softc->device_stats);
894 xpt_release_ccb(ccb);
900 chposition(struct cam_periph *periph, struct changer_position *cp)
902 struct ch_softc *softc;
908 softc = (struct ch_softc *)periph->softc;
913 if (cp->cp_type > CHET_DT)
915 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
919 * Calculate the destination element.
921 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
923 ccb = cam_periph_getccb(periph, /*priority*/ 1);
925 scsi_position_to_element(&ccb->csio,
928 /* tag_action */ MSG_SIMPLE_Q_TAG,
929 /* tea */ softc->sc_picker,
931 /* invert */ (cp->cp_flags & CP_INVERT) ?
933 /* sense_len */ SSD_FULL_SIZE,
934 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
936 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
937 /*sense_flags*/ SF_RETRY_UA,
938 &softc->device_stats);
940 xpt_release_ccb(ccb);
946 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
947 * to host native byte order in the volume serial number. The volume
948 * label as returned by the changer is transferred to user mode as
949 * nul-terminated string. Volume labels are truncated at the first
950 * space, as suggested by SCSI-2.
953 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
956 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
957 char c = voltag->vif[i];
959 uvoltag->cv_volid[i] = c;
963 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
967 * Copy an an element status descriptor to a user-mode
968 * changer_element_status structure.
972 copy_element_status(struct ch_softc *softc,
974 struct read_element_status_descriptor *desc,
975 struct changer_element_status *ces)
977 u_int16_t eaddr = scsi_2btoul(desc->eaddr);
980 ces->ces_int_addr = eaddr;
981 /* set up logical address in element status */
982 for (et = CHET_MT; et <= CHET_DT; et++) {
983 if ((softc->sc_firsts[et] <= eaddr)
984 && ((softc->sc_firsts[et] + softc->sc_counts[et])
986 ces->ces_addr = eaddr - softc->sc_firsts[et];
992 ces->ces_flags = desc->flags1;
994 ces->ces_sensecode = desc->sense_code;
995 ces->ces_sensequal = desc->sense_qual;
997 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
998 ces->ces_flags |= CES_INVERT;
1000 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1002 eaddr = scsi_2btoul(desc->ssea);
1004 /* convert source address to logical format */
1005 for (et = CHET_MT; et <= CHET_DT; et++) {
1006 if ((softc->sc_firsts[et] <= eaddr)
1007 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1009 ces->ces_source_addr =
1010 eaddr - softc->sc_firsts[et];
1011 ces->ces_source_type = et;
1012 ces->ces_flags |= CES_SOURCE_VALID;
1017 if (!(ces->ces_flags & CES_SOURCE_VALID))
1018 kprintf("ch: warning: could not map element source "
1019 "address %ud to a valid element type\n",
1024 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1025 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag));
1026 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1027 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag));
1029 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) {
1030 ces->ces_flags |= CES_SCSIID_VALID;
1031 ces->ces_scsi_id = desc->dt_scsi_addr;
1034 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) {
1035 ces->ces_flags |= CES_LUN_VALID;
1037 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK;
1042 chgetelemstatus(struct cam_periph *periph,
1043 struct changer_element_status_request *cesr)
1045 struct read_element_status_header *st_hdr;
1046 struct read_element_status_page_header *pg_hdr;
1047 struct read_element_status_descriptor *desc;
1048 caddr_t data = NULL;
1049 size_t size, desclen;
1050 int avail, i, error = 0;
1051 struct changer_element_status *user_data = NULL;
1052 struct ch_softc *softc;
1054 int chet = cesr->cesr_element_type;
1055 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1057 softc = (struct ch_softc *)periph->softc;
1059 /* perform argument checking */
1062 * Perform a range check on the cesr_element_{base,count}
1063 * request argument fields.
1065 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1066 || (cesr->cesr_element_base + cesr->cesr_element_count)
1067 > softc->sc_counts[chet])
1071 * Request one descriptor for the given element type. This
1072 * is used to determine the size of the descriptor so that
1073 * we can allocate enough storage for all of them. We assume
1074 * that the first one can fit into 1k.
1076 cam_periph_unlock(periph);
1077 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT);
1079 cam_periph_lock(periph);
1080 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1082 scsi_read_element_status(&ccb->csio,
1084 /* cbfcnp */ chdone,
1085 /* tag_action */ MSG_SIMPLE_Q_TAG,
1086 /* voltag */ want_voltags,
1087 /* sea */ softc->sc_firsts[chet],
1089 /* data_ptr */ data,
1090 /* dxfer_len */ 1024,
1091 /* sense_len */ SSD_FULL_SIZE,
1092 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1094 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1095 /*sense_flags*/ SF_RETRY_UA,
1096 &softc->device_stats);
1100 cam_periph_unlock(periph);
1102 st_hdr = (struct read_element_status_header *)data;
1103 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1104 sizeof(struct read_element_status_header));
1105 desclen = scsi_2btoul(pg_hdr->edl);
1107 size = sizeof(struct read_element_status_header) +
1108 sizeof(struct read_element_status_page_header) +
1109 (desclen * cesr->cesr_element_count);
1112 * Reallocate storage for descriptors and get them from the
1115 kfree(data, M_DEVBUF);
1116 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT);
1118 cam_periph_lock(periph);
1119 scsi_read_element_status(&ccb->csio,
1121 /* cbfcnp */ chdone,
1122 /* tag_action */ MSG_SIMPLE_Q_TAG,
1123 /* voltag */ want_voltags,
1124 /* sea */ softc->sc_firsts[chet]
1125 + cesr->cesr_element_base,
1126 /* count */ cesr->cesr_element_count,
1127 /* data_ptr */ data,
1128 /* dxfer_len */ size,
1129 /* sense_len */ SSD_FULL_SIZE,
1130 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1132 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1133 /*sense_flags*/ SF_RETRY_UA,
1134 &softc->device_stats);
1138 cam_periph_unlock(periph);
1141 * Fill in the user status array.
1143 st_hdr = (struct read_element_status_header *)data;
1144 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1145 sizeof(struct read_element_status_header));
1146 avail = scsi_2btoul(st_hdr->count);
1148 if (avail != cesr->cesr_element_count) {
1149 xpt_print(periph->path,
1150 "warning, READ ELEMENT STATUS avail != count\n");
1153 user_data = (struct changer_element_status *)
1154 kmalloc(avail * sizeof(struct changer_element_status),
1155 M_DEVBUF, M_INTWAIT | M_ZERO);
1157 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1158 sizeof(struct read_element_status_header) +
1159 sizeof(struct read_element_status_page_header));
1161 * Set up the individual element status structures
1163 for (i = 0; i < avail; ++i) {
1164 struct changer_element_status *ces = &(user_data[i]);
1166 copy_element_status(softc, pg_hdr->flags, desc, ces);
1168 desc = (struct read_element_status_descriptor *)
1169 ((uintptr_t)desc + desclen);
1172 /* Copy element status structures out to userspace. */
1173 error = copyout(user_data,
1174 cesr->cesr_element_status,
1175 avail * sizeof(struct changer_element_status));
1176 cam_periph_lock(periph);
1179 xpt_release_ccb(ccb);
1182 kfree(data, M_DEVBUF);
1183 if (user_data != NULL)
1184 kfree(user_data, M_DEVBUF);
1190 chielem(struct cam_periph *periph,
1191 unsigned int timeout)
1194 struct ch_softc *softc;
1198 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1204 softc = (struct ch_softc *)periph->softc;
1206 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1208 scsi_initialize_element_status(&ccb->csio,
1210 /* cbfcnp */ chdone,
1211 /* tag_action */ MSG_SIMPLE_Q_TAG,
1212 /* sense_len */ SSD_FULL_SIZE,
1213 /* timeout */ timeout);
1215 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1216 /*sense_flags*/ SF_RETRY_UA,
1217 &softc->device_stats);
1219 xpt_release_ccb(ccb);
1225 chsetvoltag(struct cam_periph *periph,
1226 struct changer_set_voltag_request *csvr)
1229 struct ch_softc *softc;
1232 struct scsi_send_volume_tag_parameters ssvtp;
1237 softc = (struct ch_softc *)periph->softc;
1239 bzero(&ssvtp, sizeof(ssvtp));
1240 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1241 ssvtp.vitf[i] = ' ';
1247 if (csvr->csvr_type > CHET_DT)
1249 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1252 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1254 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1255 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1257 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1259 case CSVR_MODE_REPLACE:
1260 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1262 case CSVR_MODE_CLEAR:
1263 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1270 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1272 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1274 case CSVR_MODE_REPLACE:
1275 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1277 case CSVR_MODE_CLEAR:
1278 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1286 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1287 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1288 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1290 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1292 scsi_send_volume_tag(&ccb->csio,
1294 /* cbfcnp */ chdone,
1295 /* tag_action */ MSG_SIMPLE_Q_TAG,
1296 /* element_address */ ea,
1297 /* send_action_code */ sac,
1298 /* parameters */ &ssvtp,
1299 /* sense_len */ SSD_FULL_SIZE,
1300 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1302 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1303 /*sense_flags*/ SF_RETRY_UA,
1304 &softc->device_stats);
1306 xpt_release_ccb(ccb);
1313 chgetparams(struct cam_periph *periph)
1316 struct ch_softc *softc;
1318 int mode_buffer_len;
1319 struct page_element_address_assignment *ea;
1320 struct page_device_capabilities *cap;
1321 int error, from, dbd;
1322 u_int8_t *moves, *exchanges;
1326 softc = (struct ch_softc *)periph->softc;
1328 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1331 * The scsi_mode_sense_data structure is just a convenience
1332 * structure that allows us to easily calculate the worst-case
1333 * storage size of the mode sense buffer.
1335 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1337 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO);
1339 if (softc->quirks & CH_Q_NO_DBD)
1345 * Get the element address assignment page.
1347 scsi_mode_sense(&ccb->csio,
1349 /* cbfcnp */ chdone,
1350 /* tag_action */ MSG_SIMPLE_Q_TAG,
1352 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1353 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1354 /* param_buf */ (u_int8_t *)mode_buffer,
1355 /* param_len */ mode_buffer_len,
1356 /* sense_len */ SSD_FULL_SIZE,
1357 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1359 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1360 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1361 &softc->device_stats);
1365 struct scsi_mode_sense_6 *sms;
1367 sms = (struct scsi_mode_sense_6 *)
1368 ccb->csio.cdb_io.cdb_bytes;
1370 sms->byte2 &= ~SMS_DBD;
1371 error = cam_periph_runccb(ccb, cherror,
1372 /*cam_flags*/ CAM_RETRY_SELTO,
1373 /*sense_flags*/ SF_RETRY_UA,
1374 &softc->device_stats);
1377 * Since we disabled sense printing above, print
1378 * out the sense here since we got an error.
1380 scsi_sense_print(&ccb->csio);
1384 xpt_print(periph->path,
1385 "chgetparams: error getting element "
1387 xpt_release_ccb(ccb);
1388 kfree(mode_buffer, M_SCSICH);
1393 ea = (struct page_element_address_assignment *)
1394 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1396 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1397 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1398 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1399 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1400 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1401 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1402 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1403 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1405 bzero(mode_buffer, mode_buffer_len);
1408 * Now get the device capabilities page.
1410 scsi_mode_sense(&ccb->csio,
1412 /* cbfcnp */ chdone,
1413 /* tag_action */ MSG_SIMPLE_Q_TAG,
1415 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1416 /* page */ CH_DEVICE_CAP_PAGE,
1417 /* param_buf */ (u_int8_t *)mode_buffer,
1418 /* param_len */ mode_buffer_len,
1419 /* sense_len */ SSD_FULL_SIZE,
1420 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1422 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1423 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1424 &softc->device_stats);
1428 struct scsi_mode_sense_6 *sms;
1430 sms = (struct scsi_mode_sense_6 *)
1431 ccb->csio.cdb_io.cdb_bytes;
1433 sms->byte2 &= ~SMS_DBD;
1434 error = cam_periph_runccb(ccb, cherror,
1435 /*cam_flags*/ CAM_RETRY_SELTO,
1436 /*sense_flags*/ SF_RETRY_UA,
1437 &softc->device_stats);
1440 * Since we disabled sense printing above, print
1441 * out the sense here since we got an error.
1443 scsi_sense_print(&ccb->csio);
1447 xpt_print(periph->path,
1448 "chgetparams: error getting device "
1449 "capabilities page\n");
1450 xpt_release_ccb(ccb);
1451 kfree(mode_buffer, M_SCSICH);
1456 xpt_release_ccb(ccb);
1458 cap = (struct page_device_capabilities *)
1459 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1461 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1462 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1463 moves = cap->move_from;
1464 exchanges = cap->exchange_with;
1465 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1466 softc->sc_movemask[from] = moves[from];
1467 softc->sc_exchangemask[from] = exchanges[from];
1470 kfree(mode_buffer, M_SCSICH);
1476 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
1477 void (*cbfcnp)(struct cam_periph *, union ccb *),
1478 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1479 u_int32_t dst, int invert, u_int8_t sense_len,
1482 struct scsi_move_medium *scsi_cmd;
1484 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1485 bzero(scsi_cmd, sizeof(*scsi_cmd));
1487 scsi_cmd->opcode = MOVE_MEDIUM;
1489 scsi_ulto2b(tea, scsi_cmd->tea);
1490 scsi_ulto2b(src, scsi_cmd->src);
1491 scsi_ulto2b(dst, scsi_cmd->dst);
1494 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1499 /*flags*/ CAM_DIR_NONE,
1509 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
1510 void (*cbfcnp)(struct cam_periph *, union ccb *),
1511 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1512 u_int32_t dst1, u_int32_t dst2, int invert1,
1513 int invert2, u_int8_t sense_len, u_int32_t timeout)
1515 struct scsi_exchange_medium *scsi_cmd;
1517 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1518 bzero(scsi_cmd, sizeof(*scsi_cmd));
1520 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1522 scsi_ulto2b(tea, scsi_cmd->tea);
1523 scsi_ulto2b(src, scsi_cmd->src);
1524 scsi_ulto2b(dst1, scsi_cmd->fdst);
1525 scsi_ulto2b(dst2, scsi_cmd->sdst);
1528 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1531 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1536 /*flags*/ CAM_DIR_NONE,
1546 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
1547 void (*cbfcnp)(struct cam_periph *, union ccb *),
1548 u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
1549 int invert, u_int8_t sense_len, u_int32_t timeout)
1551 struct scsi_position_to_element *scsi_cmd;
1553 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1554 bzero(scsi_cmd, sizeof(*scsi_cmd));
1556 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1558 scsi_ulto2b(tea, scsi_cmd->tea);
1559 scsi_ulto2b(dst, scsi_cmd->dst);
1562 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1567 /*flags*/ CAM_DIR_NONE,
1577 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1578 void (*cbfcnp)(struct cam_periph *, union ccb *),
1579 u_int8_t tag_action, int voltag, u_int32_t sea,
1580 u_int32_t count, u_int8_t *data_ptr,
1581 u_int32_t dxfer_len, u_int8_t sense_len,
1584 struct scsi_read_element_status *scsi_cmd;
1586 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1587 bzero(scsi_cmd, sizeof(*scsi_cmd));
1589 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1591 scsi_ulto2b(sea, scsi_cmd->sea);
1592 scsi_ulto2b(count, scsi_cmd->count);
1593 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1596 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1601 /*flags*/ CAM_DIR_IN,
1611 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1612 void (*cbfcnp)(struct cam_periph *, union ccb *),
1613 u_int8_t tag_action, u_int8_t sense_len,
1616 struct scsi_initialize_element_status *scsi_cmd;
1618 scsi_cmd = (struct scsi_initialize_element_status *)
1619 &csio->cdb_io.cdb_bytes;
1620 bzero(scsi_cmd, sizeof(*scsi_cmd));
1622 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1627 /*flags*/ CAM_DIR_NONE,
1629 /* data_ptr */ NULL,
1637 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
1638 void (*cbfcnp)(struct cam_periph *, union ccb *),
1639 u_int8_t tag_action,
1640 u_int16_t element_address,
1641 u_int8_t send_action_code,
1642 struct scsi_send_volume_tag_parameters *parameters,
1643 u_int8_t sense_len, u_int32_t timeout)
1645 struct scsi_send_volume_tag *scsi_cmd;
1647 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1648 bzero(scsi_cmd, sizeof(*scsi_cmd));
1650 scsi_cmd->opcode = SEND_VOLUME_TAG;
1651 scsi_ulto2b(element_address, scsi_cmd->ea);
1652 scsi_cmd->sac = send_action_code;
1653 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1658 /*flags*/ CAM_DIR_OUT,
1660 /* data_ptr */ (u_int8_t *) parameters,
1661 sizeof(*parameters),