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
29 * Derived from the NetBSD SCSI changer driver.
31 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $
35 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
36 * All rights reserved.
38 * Partially based on an autochanger driver written by Stefan Grefen
39 * and on an autochanger driver written by the Systems Programming Group
40 * at the University of Utah Computer Science Department.
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgements:
52 * This product includes software developed by Jason R. Thorpe
53 * for And Communications, http://www.and.com/
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission.
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
62 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
63 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
64 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
65 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
70 #include <sys/cdefs.h>
71 __FBSDID("$FreeBSD$");
73 #include <sys/param.h>
74 #include <sys/queue.h>
75 #include <sys/systm.h>
76 #include <sys/kernel.h>
77 #include <sys/types.h>
78 #include <sys/malloc.h>
79 #include <sys/fcntl.h>
82 #include <sys/errno.h>
83 #include <sys/devicestat.h>
86 #include <cam/cam_ccb.h>
87 #include <cam/cam_periph.h>
88 #include <cam/cam_xpt_periph.h>
89 #include <cam/cam_debug.h>
91 #include <cam/scsi/scsi_all.h>
92 #include <cam/scsi/scsi_message.h>
93 #include <cam/scsi/scsi_ch.h>
96 * Timeout definitions for various changer related commands. They may
97 * be too short for some devices (especially the timeout for INITIALIZE
101 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000;
102 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000;
103 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000;
104 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000;
105 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000;
106 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
107 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
110 CH_FLAG_INVALID = 0x001,
129 #define ccb_state ppriv_field0
130 #define ccb_bp ppriv_ptr1
132 struct scsi_mode_sense_data {
133 struct scsi_mode_header_6 header;
134 struct scsi_mode_blk_desc blk_desc;
136 struct page_element_address_assignment ea;
137 struct page_transport_geometry_parameters tg;
138 struct page_device_capabilities cap;
147 struct devstat *device_stats;
150 int sc_picker; /* current picker */
153 * The following information is obtained from the
154 * element address assignment page.
156 int sc_firsts[CHET_MAX + 1]; /* firsts */
157 int sc_counts[CHET_MAX + 1]; /* counts */
160 * The following mask defines the legal combinations
161 * of elements for the MOVE MEDIUM command.
163 u_int8_t sc_movemask[CHET_MAX + 1];
166 * As above, but for EXCHANGE MEDIUM.
168 u_int8_t sc_exchangemask[CHET_MAX + 1];
171 * Quirks; see below. XXX KDM not implemented yet
173 int sc_settledelay; /* delay for settle */
176 static d_open_t chopen;
177 static d_close_t chclose;
178 static d_ioctl_t chioctl;
179 static periph_init_t chinit;
180 static periph_ctor_t chregister;
181 static periph_oninv_t choninvalidate;
182 static periph_dtor_t chcleanup;
183 static periph_start_t chstart;
184 static void chasync(void *callback_arg, u_int32_t code,
185 struct cam_path *path, void *arg);
186 static void chdone(struct cam_periph *periph,
187 union ccb *done_ccb);
188 static int cherror(union ccb *ccb, u_int32_t cam_flags,
189 u_int32_t sense_flags);
190 static int chmove(struct cam_periph *periph,
191 struct changer_move *cm);
192 static int chexchange(struct cam_periph *periph,
193 struct changer_exchange *ce);
194 static int chposition(struct cam_periph *periph,
195 struct changer_position *cp);
196 static int chgetelemstatus(struct cam_periph *periph,
197 struct changer_element_status_request *csr);
198 static int chsetvoltag(struct cam_periph *periph,
199 struct changer_set_voltag_request *csvr);
200 static int chielem(struct cam_periph *periph,
201 unsigned int timeout);
202 static int chgetparams(struct cam_periph *periph);
204 static struct periph_driver chdriver =
207 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
210 PERIPHDRIVER_DECLARE(ch, chdriver);
212 static struct cdevsw ch_cdevsw = {
213 .d_version = D_VERSION,
221 MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
229 * Install a global async callback. This callback will
230 * receive async callbacks like "new device found".
232 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
234 if (status != CAM_REQ_CMP) {
235 printf("ch: Failed to attach master async callback "
236 "due to status 0x%x!\n", status);
241 choninvalidate(struct cam_periph *periph)
243 struct ch_softc *softc;
245 softc = (struct ch_softc *)periph->softc;
248 * De-register any async callbacks.
250 xpt_register_async(0, chasync, periph, periph->path);
252 softc->flags |= CH_FLAG_INVALID;
254 xpt_print(periph->path, "lost device\n");
259 chcleanup(struct cam_periph *periph)
261 struct ch_softc *softc;
263 softc = (struct ch_softc *)periph->softc;
265 xpt_print(periph->path, "removing device entry\n");
266 devstat_remove_entry(softc->device_stats);
267 cam_periph_unlock(periph);
268 destroy_dev(softc->dev);
269 cam_periph_lock(periph);
270 free(softc, M_DEVBUF);
274 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
276 struct cam_periph *periph;
278 periph = (struct cam_periph *)callback_arg;
281 case AC_FOUND_DEVICE:
283 struct ccb_getdev *cgd;
286 cgd = (struct ccb_getdev *)arg;
290 if (cgd->protocol != PROTO_SCSI)
293 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
297 * Allocate a peripheral instance for
298 * this device and start the probe
301 status = cam_periph_alloc(chregister, choninvalidate,
302 chcleanup, chstart, "ch",
303 CAM_PERIPH_BIO, cgd->ccb_h.path,
304 chasync, AC_FOUND_DEVICE, cgd);
306 if (status != CAM_REQ_CMP
307 && status != CAM_REQ_INPROG)
308 printf("chasync: Unable to probe new device "
309 "due to status 0x%x\n", status);
315 cam_periph_async(periph, code, path, arg);
321 chregister(struct cam_periph *periph, void *arg)
323 struct ch_softc *softc;
324 struct ccb_getdev *cgd;
326 cgd = (struct ccb_getdev *)arg;
327 if (periph == NULL) {
328 printf("chregister: periph was NULL!!\n");
329 return(CAM_REQ_CMP_ERR);
333 printf("chregister: no getdev CCB, can't register device\n");
334 return(CAM_REQ_CMP_ERR);
337 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
340 printf("chregister: Unable to probe new device. "
341 "Unable to allocate softc\n");
342 return(CAM_REQ_CMP_ERR);
345 bzero(softc, sizeof(*softc));
346 softc->state = CH_STATE_PROBE;
347 periph->softc = softc;
348 softc->quirks = CH_Q_NONE;
351 * Changers don't have a blocksize, and obviously don't support
354 cam_periph_unlock(periph);
355 softc->device_stats = devstat_new_entry("ch",
356 periph->unit_number, 0,
357 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
358 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI,
359 DEVSTAT_PRIORITY_OTHER);
361 /* Register the device */
362 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT,
363 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
364 periph->unit_number);
365 cam_periph_lock(periph);
366 softc->dev->si_drv1 = 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 (void)cam_periph_hold(periph, PRIBIO);
379 xpt_schedule(periph, /*priority*/5);
385 chopen(struct cdev *dev, int flags, int fmt, struct thread *td)
387 struct cam_periph *periph;
388 struct ch_softc *softc;
391 periph = (struct cam_periph *)dev->si_drv1;
392 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
395 softc = (struct ch_softc *)periph->softc;
397 cam_periph_lock(periph);
399 if (softc->flags & CH_FLAG_INVALID) {
400 cam_periph_unlock(periph);
401 cam_periph_release(periph);
405 if ((softc->flags & CH_FLAG_OPEN) == 0)
406 softc->flags |= CH_FLAG_OPEN;
408 cam_periph_release(periph);
410 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
411 cam_periph_unlock(periph);
412 cam_periph_release(periph);
417 * Load information about this changer device into the softc.
419 if ((error = chgetparams(periph)) != 0) {
420 softc->flags &= ~CH_FLAG_OPEN;
421 cam_periph_unlock(periph);
422 cam_periph_release(periph);
426 cam_periph_unhold(periph);
427 cam_periph_unlock(periph);
433 chclose(struct cdev *dev, int flag, int fmt, struct thread *td)
435 struct cam_periph *periph;
436 struct ch_softc *softc;
441 periph = (struct cam_periph *)dev->si_drv1;
445 softc = (struct ch_softc *)periph->softc;
447 cam_periph_lock(periph);
449 softc->flags &= ~CH_FLAG_OPEN;
451 cam_periph_unlock(periph);
452 cam_periph_release(periph);
458 chstart(struct cam_periph *periph, union ccb *start_ccb)
460 struct ch_softc *softc;
462 softc = (struct ch_softc *)periph->softc;
464 switch (softc->state) {
465 case CH_STATE_NORMAL:
467 if (periph->immediate_priority <= periph->pinfo.priority){
468 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING;
470 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
472 periph->immediate_priority = CAM_PRIORITY_NONE;
473 wakeup(&periph->ccb_list);
483 * Include the block descriptor when calculating the mode
486 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
487 sizeof(struct scsi_mode_blk_desc) +
488 sizeof(struct page_element_address_assignment);
490 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
492 if (mode_buffer == NULL) {
493 printf("chstart: couldn't malloc mode sense data\n");
496 bzero(mode_buffer, mode_buffer_len);
499 * Get the element address assignment page.
501 scsi_mode_sense(&start_ccb->csio,
504 /* tag_action */ MSG_SIMPLE_Q_TAG,
505 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
507 /* page_code */ SMS_PAGE_CTRL_CURRENT,
508 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
509 /* param_buf */ (u_int8_t *)mode_buffer,
510 /* param_len */ mode_buffer_len,
511 /* sense_len */ SSD_FULL_SIZE,
512 /* timeout */ CH_TIMEOUT_MODE_SENSE);
514 start_ccb->ccb_h.ccb_bp = NULL;
515 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
516 xpt_action(start_ccb);
523 chdone(struct cam_periph *periph, union ccb *done_ccb)
525 struct ch_softc *softc;
526 struct ccb_scsiio *csio;
528 softc = (struct ch_softc *)periph->softc;
529 csio = &done_ccb->csio;
531 switch(done_ccb->ccb_h.ccb_state) {
534 struct scsi_mode_header_6 *mode_header;
535 struct page_element_address_assignment *ea;
536 char announce_buf[80];
539 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
541 ea = (struct page_element_address_assignment *)
542 find_mode_page_6(mode_header);
544 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
546 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
547 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
548 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
549 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
550 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
551 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
552 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
553 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
554 softc->sc_picker = softc->sc_firsts[CHET_MT];
556 #define PLURAL(c) (c) == 1 ? "" : "s"
557 snprintf(announce_buf, sizeof(announce_buf),
558 "%d slot%s, %d drive%s, "
559 "%d picker%s, %d portal%s",
560 softc->sc_counts[CHET_ST],
561 PLURAL(softc->sc_counts[CHET_ST]),
562 softc->sc_counts[CHET_DT],
563 PLURAL(softc->sc_counts[CHET_DT]),
564 softc->sc_counts[CHET_MT],
565 PLURAL(softc->sc_counts[CHET_MT]),
566 softc->sc_counts[CHET_IE],
567 PLURAL(softc->sc_counts[CHET_IE]));
572 error = cherror(done_ccb, CAM_RETRY_SELTO,
573 SF_RETRY_UA | SF_NO_PRINT);
575 * Retry any UNIT ATTENTION type errors. They
576 * are expected at boot.
578 if (error == ERESTART) {
580 * A retry was scheuled, so
584 } else if (error != 0) {
586 struct scsi_mode_sense_6 *sms;
588 sms = (struct scsi_mode_sense_6 *)
589 done_ccb->csio.cdb_io.cdb_bytes;
592 * Check to see if block descriptors were
593 * disabled. Some devices don't like that.
594 * We're taking advantage of the fact that
595 * the first few bytes of the 6 and 10 byte
596 * mode sense commands are the same. If
597 * block descriptors were disabled, enable
598 * them and re-send the command.
600 if (sms->byte2 & SMS_DBD) {
601 sms->byte2 &= ~SMS_DBD;
602 xpt_action(done_ccb);
603 softc->quirks |= CH_Q_NO_DBD;
608 /* Don't wedge this device's queue */
609 cam_release_devq(done_ccb->ccb_h.path,
618 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
619 == CAM_SCSI_STATUS_ERROR)
620 scsi_sense_print(&done_ccb->csio);
622 xpt_print(periph->path,
623 "got CAM status %#x\n",
624 done_ccb->ccb_h.status);
626 xpt_print(periph->path, "fatal error, failed "
627 "to attach to device\n");
629 cam_periph_invalidate(periph);
631 announce_buf[0] = '\0';
634 if (announce_buf[0] != '\0')
635 xpt_announce_periph(periph, announce_buf);
636 softc->state = CH_STATE_NORMAL;
637 free(mode_header, M_SCSICH);
639 * Since our peripheral may be invalidated by an error
640 * above or an external event, we must release our CCB
641 * before releasing the probe lock on the peripheral.
642 * The peripheral will only go away once the last lock
643 * is removed, and we need it around for the CCB release
646 xpt_release_ccb(done_ccb);
647 cam_periph_unhold(periph);
652 /* Caller will release the CCB */
653 wakeup(&done_ccb->ccb_h.cbfcnp);
659 xpt_release_ccb(done_ccb);
663 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
665 struct ch_softc *softc;
666 struct cam_periph *periph;
668 periph = xpt_path_periph(ccb->ccb_h.path);
669 softc = (struct ch_softc *)periph->softc;
671 return (cam_periph_error(ccb, cam_flags, sense_flags,
676 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
678 struct cam_periph *periph;
679 struct ch_softc *softc;
682 periph = (struct cam_periph *)dev->si_drv1;
686 cam_periph_lock(periph);
687 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
689 softc = (struct ch_softc *)periph->softc;
693 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
694 ("trying to do ioctl %#lx\n", cmd));
697 * If this command can change the device's state, we must
698 * have the device open for writing.
707 if ((flag & FWRITE) == 0) {
708 cam_periph_unlock(periph);
715 error = chmove(periph, (struct changer_move *)addr);
719 error = chexchange(periph, (struct changer_exchange *)addr);
723 error = chposition(periph, (struct changer_position *)addr);
727 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
732 int new_picker = *(int *)addr;
734 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
738 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
743 struct changer_params *cp = (struct changer_params *)addr;
745 cp->cp_npickers = softc->sc_counts[CHET_MT];
746 cp->cp_nslots = softc->sc_counts[CHET_ST];
747 cp->cp_nportals = softc->sc_counts[CHET_IE];
748 cp->cp_ndrives = softc->sc_counts[CHET_DT];
752 error = chielem(periph, *(unsigned int *)addr);
757 error = chgetelemstatus(periph,
758 (struct changer_element_status_request *) addr);
764 error = chsetvoltag(periph,
765 (struct changer_set_voltag_request *) addr);
769 /* Implement prevent/allow? */
772 error = cam_periph_ioctl(periph, cmd, addr, cherror);
776 cam_periph_unlock(periph);
781 chmove(struct cam_periph *periph, struct changer_move *cm)
783 struct ch_softc *softc;
784 u_int16_t fromelem, toelem;
789 softc = (struct ch_softc *)periph->softc;
794 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
796 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
797 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
801 * Check the request against the changer's capabilities.
803 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
807 * Calculate the source and destination elements.
809 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
810 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
812 ccb = cam_periph_getccb(periph, /*priority*/ 1);
814 scsi_move_medium(&ccb->csio,
817 /* tag_action */ MSG_SIMPLE_Q_TAG,
818 /* tea */ softc->sc_picker,
821 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
822 /* sense_len */ SSD_FULL_SIZE,
823 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
825 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
826 /*sense_flags*/ SF_RETRY_UA,
827 softc->device_stats);
829 xpt_release_ccb(ccb);
835 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
837 struct ch_softc *softc;
838 u_int16_t src, dst1, dst2;
843 softc = (struct ch_softc *)periph->softc;
847 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
848 (ce->ce_sdsttype > CHET_DT))
850 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
851 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
852 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
856 * Check the request against the changer's capabilities.
858 if (((softc->sc_exchangemask[ce->ce_srctype] &
859 (1 << ce->ce_fdsttype)) == 0) ||
860 ((softc->sc_exchangemask[ce->ce_fdsttype] &
861 (1 << ce->ce_sdsttype)) == 0))
865 * Calculate the source and destination elements.
867 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
868 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
869 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
871 ccb = cam_periph_getccb(periph, /*priority*/ 1);
873 scsi_exchange_medium(&ccb->csio,
876 /* tag_action */ MSG_SIMPLE_Q_TAG,
877 /* tea */ softc->sc_picker,
881 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
883 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
885 /* sense_len */ SSD_FULL_SIZE,
886 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
888 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
889 /*sense_flags*/ SF_RETRY_UA,
890 softc->device_stats);
892 xpt_release_ccb(ccb);
898 chposition(struct cam_periph *periph, struct changer_position *cp)
900 struct ch_softc *softc;
906 softc = (struct ch_softc *)periph->softc;
911 if (cp->cp_type > CHET_DT)
913 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
917 * Calculate the destination element.
919 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
921 ccb = cam_periph_getccb(periph, /*priority*/ 1);
923 scsi_position_to_element(&ccb->csio,
926 /* tag_action */ MSG_SIMPLE_Q_TAG,
927 /* tea */ softc->sc_picker,
929 /* invert */ (cp->cp_flags & CP_INVERT) ?
931 /* sense_len */ SSD_FULL_SIZE,
932 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
934 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
935 /*sense_flags*/ SF_RETRY_UA,
936 softc->device_stats);
938 xpt_release_ccb(ccb);
944 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
945 * to host native byte order in the volume serial number. The volume
946 * label as returned by the changer is transferred to user mode as
947 * nul-terminated string. Volume labels are truncated at the first
948 * space, as suggested by SCSI-2.
951 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
954 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
955 char c = voltag->vif[i];
957 uvoltag->cv_volid[i] = c;
961 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
965 * Copy an an element status descriptor to a user-mode
966 * changer_element_status structure.
970 copy_element_status(struct ch_softc *softc,
972 struct read_element_status_descriptor *desc,
973 struct changer_element_status *ces)
975 u_int16_t eaddr = scsi_2btoul(desc->eaddr);
978 ces->ces_int_addr = eaddr;
979 /* set up logical address in element status */
980 for (et = CHET_MT; et <= CHET_DT; et++) {
981 if ((softc->sc_firsts[et] <= eaddr)
982 && ((softc->sc_firsts[et] + softc->sc_counts[et])
984 ces->ces_addr = eaddr - softc->sc_firsts[et];
990 ces->ces_flags = desc->flags1;
992 ces->ces_sensecode = desc->sense_code;
993 ces->ces_sensequal = desc->sense_qual;
995 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
996 ces->ces_flags |= CES_INVERT;
998 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1000 eaddr = scsi_2btoul(desc->ssea);
1002 /* convert source address to logical format */
1003 for (et = CHET_MT; et <= CHET_DT; et++) {
1004 if ((softc->sc_firsts[et] <= eaddr)
1005 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1007 ces->ces_source_addr =
1008 eaddr - softc->sc_firsts[et];
1009 ces->ces_source_type = et;
1010 ces->ces_flags |= CES_SOURCE_VALID;
1015 if (!(ces->ces_flags & CES_SOURCE_VALID))
1016 printf("ch: warning: could not map element source "
1017 "address %ud to a valid element type\n",
1022 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1023 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag));
1024 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1025 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag));
1027 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) {
1028 ces->ces_flags |= CES_SCSIID_VALID;
1029 ces->ces_scsi_id = desc->dt_scsi_addr;
1032 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) {
1033 ces->ces_flags |= CES_LUN_VALID;
1035 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK;
1040 chgetelemstatus(struct cam_periph *periph,
1041 struct changer_element_status_request *cesr)
1043 struct read_element_status_header *st_hdr;
1044 struct read_element_status_page_header *pg_hdr;
1045 struct read_element_status_descriptor *desc;
1046 caddr_t data = NULL;
1047 size_t size, desclen;
1048 int avail, i, error = 0;
1049 struct changer_element_status *user_data = NULL;
1050 struct ch_softc *softc;
1052 int chet = cesr->cesr_element_type;
1053 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1055 softc = (struct ch_softc *)periph->softc;
1057 /* perform argument checking */
1060 * Perform a range check on the cesr_element_{base,count}
1061 * request argument fields.
1063 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1064 || (cesr->cesr_element_base + cesr->cesr_element_count)
1065 > softc->sc_counts[chet])
1069 * Request one descriptor for the given element type. This
1070 * is used to determine the size of the descriptor so that
1071 * we can allocate enough storage for all of them. We assume
1072 * that the first one can fit into 1k.
1074 cam_periph_unlock(periph);
1075 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK);
1077 cam_periph_lock(periph);
1078 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1080 scsi_read_element_status(&ccb->csio,
1082 /* cbfcnp */ chdone,
1083 /* tag_action */ MSG_SIMPLE_Q_TAG,
1084 /* voltag */ want_voltags,
1085 /* sea */ softc->sc_firsts[chet],
1087 /* data_ptr */ data,
1088 /* dxfer_len */ 1024,
1089 /* sense_len */ SSD_FULL_SIZE,
1090 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1092 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1093 /*sense_flags*/ SF_RETRY_UA,
1094 softc->device_stats);
1098 cam_periph_unlock(periph);
1100 st_hdr = (struct read_element_status_header *)data;
1101 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1102 sizeof(struct read_element_status_header));
1103 desclen = scsi_2btoul(pg_hdr->edl);
1105 size = sizeof(struct read_element_status_header) +
1106 sizeof(struct read_element_status_page_header) +
1107 (desclen * cesr->cesr_element_count);
1110 * Reallocate storage for descriptors and get them from the
1113 free(data, M_DEVBUF);
1114 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK);
1116 cam_periph_lock(periph);
1117 scsi_read_element_status(&ccb->csio,
1119 /* cbfcnp */ chdone,
1120 /* tag_action */ MSG_SIMPLE_Q_TAG,
1121 /* voltag */ want_voltags,
1122 /* sea */ softc->sc_firsts[chet]
1123 + cesr->cesr_element_base,
1124 /* count */ cesr->cesr_element_count,
1125 /* data_ptr */ data,
1126 /* dxfer_len */ size,
1127 /* sense_len */ SSD_FULL_SIZE,
1128 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1130 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1131 /*sense_flags*/ SF_RETRY_UA,
1132 softc->device_stats);
1136 cam_periph_unlock(periph);
1139 * Fill in the user status array.
1141 st_hdr = (struct read_element_status_header *)data;
1142 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1143 sizeof(struct read_element_status_header));
1144 avail = scsi_2btoul(st_hdr->count);
1146 if (avail != cesr->cesr_element_count) {
1147 xpt_print(periph->path,
1148 "warning, READ ELEMENT STATUS avail != count\n");
1151 user_data = (struct changer_element_status *)
1152 malloc(avail * sizeof(struct changer_element_status),
1153 M_DEVBUF, M_WAITOK | M_ZERO);
1155 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1156 sizeof(struct read_element_status_header) +
1157 sizeof(struct read_element_status_page_header));
1159 * Set up the individual element status structures
1161 for (i = 0; i < avail; ++i) {
1162 struct changer_element_status *ces = &(user_data[i]);
1164 copy_element_status(softc, pg_hdr->flags, desc, ces);
1166 desc = (struct read_element_status_descriptor *)
1167 ((uintptr_t)desc + desclen);
1170 /* Copy element status structures out to userspace. */
1171 error = copyout(user_data,
1172 cesr->cesr_element_status,
1173 avail * sizeof(struct changer_element_status));
1174 cam_periph_lock(periph);
1177 xpt_release_ccb(ccb);
1180 free(data, M_DEVBUF);
1181 if (user_data != NULL)
1182 free(user_data, M_DEVBUF);
1188 chielem(struct cam_periph *periph,
1189 unsigned int timeout)
1192 struct ch_softc *softc;
1196 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1202 softc = (struct ch_softc *)periph->softc;
1204 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1206 scsi_initialize_element_status(&ccb->csio,
1208 /* cbfcnp */ chdone,
1209 /* tag_action */ MSG_SIMPLE_Q_TAG,
1210 /* sense_len */ SSD_FULL_SIZE,
1211 /* timeout */ timeout);
1213 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1214 /*sense_flags*/ SF_RETRY_UA,
1215 softc->device_stats);
1217 xpt_release_ccb(ccb);
1223 chsetvoltag(struct cam_periph *periph,
1224 struct changer_set_voltag_request *csvr)
1227 struct ch_softc *softc;
1230 struct scsi_send_volume_tag_parameters ssvtp;
1235 softc = (struct ch_softc *)periph->softc;
1237 bzero(&ssvtp, sizeof(ssvtp));
1238 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1239 ssvtp.vitf[i] = ' ';
1245 if (csvr->csvr_type > CHET_DT)
1247 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1250 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1252 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1253 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1255 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1257 case CSVR_MODE_REPLACE:
1258 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1260 case CSVR_MODE_CLEAR:
1261 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1268 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1270 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1272 case CSVR_MODE_REPLACE:
1273 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1275 case CSVR_MODE_CLEAR:
1276 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1284 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1285 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1286 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1288 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1290 scsi_send_volume_tag(&ccb->csio,
1292 /* cbfcnp */ chdone,
1293 /* tag_action */ MSG_SIMPLE_Q_TAG,
1294 /* element_address */ ea,
1295 /* send_action_code */ sac,
1296 /* parameters */ &ssvtp,
1297 /* sense_len */ SSD_FULL_SIZE,
1298 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1300 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1301 /*sense_flags*/ SF_RETRY_UA,
1302 softc->device_stats);
1304 xpt_release_ccb(ccb);
1311 chgetparams(struct cam_periph *periph)
1314 struct ch_softc *softc;
1316 int mode_buffer_len;
1317 struct page_element_address_assignment *ea;
1318 struct page_device_capabilities *cap;
1319 int error, from, dbd;
1320 u_int8_t *moves, *exchanges;
1324 softc = (struct ch_softc *)periph->softc;
1326 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1329 * The scsi_mode_sense_data structure is just a convenience
1330 * structure that allows us to easily calculate the worst-case
1331 * storage size of the mode sense buffer.
1333 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1335 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
1337 if (mode_buffer == NULL) {
1338 printf("chgetparams: couldn't malloc mode sense data\n");
1342 bzero(mode_buffer, mode_buffer_len);
1344 if (softc->quirks & CH_Q_NO_DBD)
1350 * Get the element address assignment page.
1352 scsi_mode_sense(&ccb->csio,
1354 /* cbfcnp */ chdone,
1355 /* tag_action */ MSG_SIMPLE_Q_TAG,
1357 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1358 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1359 /* param_buf */ (u_int8_t *)mode_buffer,
1360 /* param_len */ mode_buffer_len,
1361 /* sense_len */ SSD_FULL_SIZE,
1362 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1364 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1365 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1366 softc->device_stats);
1370 struct scsi_mode_sense_6 *sms;
1372 sms = (struct scsi_mode_sense_6 *)
1373 ccb->csio.cdb_io.cdb_bytes;
1375 sms->byte2 &= ~SMS_DBD;
1376 error = cam_periph_runccb(ccb, cherror,
1377 /*cam_flags*/ CAM_RETRY_SELTO,
1378 /*sense_flags*/ SF_RETRY_UA,
1379 softc->device_stats);
1382 * Since we disabled sense printing above, print
1383 * out the sense here since we got an error.
1385 scsi_sense_print(&ccb->csio);
1389 xpt_print(periph->path,
1390 "chgetparams: error getting element "
1392 xpt_release_ccb(ccb);
1393 free(mode_buffer, M_SCSICH);
1398 ea = (struct page_element_address_assignment *)
1399 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1401 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1402 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1403 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1404 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1405 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1406 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1407 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1408 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1410 bzero(mode_buffer, mode_buffer_len);
1413 * Now get the device capabilities page.
1415 scsi_mode_sense(&ccb->csio,
1417 /* cbfcnp */ chdone,
1418 /* tag_action */ MSG_SIMPLE_Q_TAG,
1420 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1421 /* page */ CH_DEVICE_CAP_PAGE,
1422 /* param_buf */ (u_int8_t *)mode_buffer,
1423 /* param_len */ mode_buffer_len,
1424 /* sense_len */ SSD_FULL_SIZE,
1425 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1427 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1428 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1429 softc->device_stats);
1433 struct scsi_mode_sense_6 *sms;
1435 sms = (struct scsi_mode_sense_6 *)
1436 ccb->csio.cdb_io.cdb_bytes;
1438 sms->byte2 &= ~SMS_DBD;
1439 error = cam_periph_runccb(ccb, cherror,
1440 /*cam_flags*/ CAM_RETRY_SELTO,
1441 /*sense_flags*/ SF_RETRY_UA,
1442 softc->device_stats);
1445 * Since we disabled sense printing above, print
1446 * out the sense here since we got an error.
1448 scsi_sense_print(&ccb->csio);
1452 xpt_print(periph->path,
1453 "chgetparams: error getting device "
1454 "capabilities page\n");
1455 xpt_release_ccb(ccb);
1456 free(mode_buffer, M_SCSICH);
1461 xpt_release_ccb(ccb);
1463 cap = (struct page_device_capabilities *)
1464 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1466 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1467 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1468 moves = cap->move_from;
1469 exchanges = cap->exchange_with;
1470 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1471 softc->sc_movemask[from] = moves[from];
1472 softc->sc_exchangemask[from] = exchanges[from];
1475 free(mode_buffer, M_SCSICH);
1481 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
1482 void (*cbfcnp)(struct cam_periph *, union ccb *),
1483 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1484 u_int32_t dst, int invert, u_int8_t sense_len,
1487 struct scsi_move_medium *scsi_cmd;
1489 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1490 bzero(scsi_cmd, sizeof(*scsi_cmd));
1492 scsi_cmd->opcode = MOVE_MEDIUM;
1494 scsi_ulto2b(tea, scsi_cmd->tea);
1495 scsi_ulto2b(src, scsi_cmd->src);
1496 scsi_ulto2b(dst, scsi_cmd->dst);
1499 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1504 /*flags*/ CAM_DIR_NONE,
1514 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
1515 void (*cbfcnp)(struct cam_periph *, union ccb *),
1516 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1517 u_int32_t dst1, u_int32_t dst2, int invert1,
1518 int invert2, u_int8_t sense_len, u_int32_t timeout)
1520 struct scsi_exchange_medium *scsi_cmd;
1522 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1523 bzero(scsi_cmd, sizeof(*scsi_cmd));
1525 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1527 scsi_ulto2b(tea, scsi_cmd->tea);
1528 scsi_ulto2b(src, scsi_cmd->src);
1529 scsi_ulto2b(dst1, scsi_cmd->fdst);
1530 scsi_ulto2b(dst2, scsi_cmd->sdst);
1533 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1536 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1541 /*flags*/ CAM_DIR_NONE,
1551 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
1552 void (*cbfcnp)(struct cam_periph *, union ccb *),
1553 u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
1554 int invert, u_int8_t sense_len, u_int32_t timeout)
1556 struct scsi_position_to_element *scsi_cmd;
1558 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1559 bzero(scsi_cmd, sizeof(*scsi_cmd));
1561 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1563 scsi_ulto2b(tea, scsi_cmd->tea);
1564 scsi_ulto2b(dst, scsi_cmd->dst);
1567 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1572 /*flags*/ CAM_DIR_NONE,
1582 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1583 void (*cbfcnp)(struct cam_periph *, union ccb *),
1584 u_int8_t tag_action, int voltag, u_int32_t sea,
1585 u_int32_t count, u_int8_t *data_ptr,
1586 u_int32_t dxfer_len, u_int8_t sense_len,
1589 struct scsi_read_element_status *scsi_cmd;
1591 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1592 bzero(scsi_cmd, sizeof(*scsi_cmd));
1594 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1596 scsi_ulto2b(sea, scsi_cmd->sea);
1597 scsi_ulto2b(count, scsi_cmd->count);
1598 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1601 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1606 /*flags*/ CAM_DIR_IN,
1616 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1617 void (*cbfcnp)(struct cam_periph *, union ccb *),
1618 u_int8_t tag_action, u_int8_t sense_len,
1621 struct scsi_initialize_element_status *scsi_cmd;
1623 scsi_cmd = (struct scsi_initialize_element_status *)
1624 &csio->cdb_io.cdb_bytes;
1625 bzero(scsi_cmd, sizeof(*scsi_cmd));
1627 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1632 /*flags*/ CAM_DIR_NONE,
1634 /* data_ptr */ NULL,
1642 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
1643 void (*cbfcnp)(struct cam_periph *, union ccb *),
1644 u_int8_t tag_action,
1645 u_int16_t element_address,
1646 u_int8_t send_action_code,
1647 struct scsi_send_volume_tag_parameters *parameters,
1648 u_int8_t sense_len, u_int32_t timeout)
1650 struct scsi_send_volume_tag *scsi_cmd;
1652 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1653 bzero(scsi_cmd, sizeof(*scsi_cmd));
1655 scsi_cmd->opcode = SEND_VOLUME_TAG;
1656 scsi_ulto2b(element_address, scsi_cmd->ea);
1657 scsi_cmd->sac = send_action_code;
1658 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1663 /*flags*/ CAM_DIR_OUT,
1665 /* data_ptr */ (u_int8_t *) parameters,
1666 sizeof(*parameters),