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 $
28 * $DragonFly: src/sys/bus/cam/scsi/scsi_ch.c,v 1.28 2008/07/18 00:07:23 dillon Exp $
31 * Derived from the NetBSD SCSI changer driver.
33 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $
37 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
38 * All rights reserved.
40 * Partially based on an autochanger driver written by Stefan Grefen
41 * and on an autochanger driver written by the Systems Programming Group
42 * at the University of Utah Computer Science Department.
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgements:
54 * This product includes software developed by Jason R. Thorpe
55 * for And Communications, http://www.and.com/
56 * 4. The name of the author may not be used to endorse or promote products
57 * derived from this software without specific prior written permission.
59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
64 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
65 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
66 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
67 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
72 #include <sys/param.h>
73 #include <sys/queue.h>
74 #include <sys/systm.h>
75 #include <sys/kernel.h>
76 #include <sys/types.h>
77 #include <sys/malloc.h>
78 #include <sys/fcntl.h>
82 #include <sys/errno.h>
83 #include <sys/devicestat.h>
84 #include <sys/thread2.h>
87 #include "../cam_ccb.h"
88 #include "../cam_extend.h"
89 #include "../cam_periph.h"
90 #include "../cam_xpt_periph.h"
91 #include "../cam_queue.h"
92 #include "../cam_debug.h"
95 #include "scsi_message.h"
99 * Timeout definitions for various changer related commands. They may
100 * be too short for some devices (especially the timeout for INITIALIZE
104 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000;
105 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000;
106 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000;
107 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000;
108 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000;
109 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
110 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
113 CH_FLAG_INVALID = 0x001,
132 #define ccb_state ppriv_field0
133 #define ccb_bio ppriv_ptr1
135 struct scsi_mode_sense_data {
136 struct scsi_mode_header_6 header;
137 struct scsi_mode_blk_desc blk_desc;
139 struct page_element_address_assignment ea;
140 struct page_transport_geometry_parameters tg;
141 struct page_device_capabilities cap;
150 struct devstat device_stats;
152 int sc_picker; /* current picker */
155 * The following information is obtained from the
156 * element address assignment page.
158 int sc_firsts[CHET_MAX + 1]; /* firsts */
159 int sc_counts[CHET_MAX + 1]; /* counts */
162 * The following mask defines the legal combinations
163 * of elements for the MOVE MEDIUM command.
165 u_int8_t sc_movemask[CHET_MAX + 1];
168 * As above, but for EXCHANGE MEDIUM.
170 u_int8_t sc_exchangemask[CHET_MAX + 1];
173 * Quirks; see below. XXX KDM not implemented yet
175 int sc_settledelay; /* delay for settle */
178 #define CHUNIT(x) (minor((x)))
179 #define CH_CDEV_MAJOR 17
181 static d_open_t chopen;
182 static d_close_t chclose;
183 static d_ioctl_t chioctl;
184 static periph_init_t chinit;
185 static periph_ctor_t chregister;
186 static periph_oninv_t choninvalidate;
187 static periph_dtor_t chcleanup;
188 static periph_start_t chstart;
189 static void chasync(void *callback_arg, u_int32_t code,
190 struct cam_path *path, void *arg);
191 static void chdone(struct cam_periph *periph,
192 union ccb *done_ccb);
193 static int cherror(union ccb *ccb, u_int32_t cam_flags,
194 u_int32_t sense_flags);
195 static int chmove(struct cam_periph *periph,
196 struct changer_move *cm);
197 static int chexchange(struct cam_periph *periph,
198 struct changer_exchange *ce);
199 static int chposition(struct cam_periph *periph,
200 struct changer_position *cp);
201 static int chgetelemstatus(struct cam_periph *periph,
202 struct changer_element_status_request *csr);
203 static int chsetvoltag(struct cam_periph *periph,
204 struct changer_set_voltag_request *csvr);
205 static int chielem(struct cam_periph *periph,
206 unsigned int timeout);
207 static int chgetparams(struct cam_periph *periph);
209 static struct periph_driver chdriver =
212 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
215 PERIPHDRIVER_DECLARE(ch, chdriver);
217 static struct dev_ops ch_ops = {
218 { "ch", CH_CDEV_MAJOR, 0 },
224 static struct extend_array *chperiphs;
226 MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
234 * Create our extend array for storing the devices we attach to.
236 chperiphs = cam_extend_new();
237 if (chperiphs == NULL) {
238 kprintf("ch: Failed to alloc extend array!\n");
243 * Install a global async callback. This callback will
244 * receive async callbacks like "new device found".
246 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
248 if (status != CAM_REQ_CMP) {
249 kprintf("ch: Failed to attach master async callback "
250 "due to status 0x%x!\n", status);
255 choninvalidate(struct cam_periph *periph)
257 struct ch_softc *softc;
259 softc = (struct ch_softc *)periph->softc;
262 * De-register any async callbacks.
264 xpt_register_async(0, chasync, periph, periph->path);
266 softc->flags |= CH_FLAG_INVALID;
268 xpt_print(periph->path, "lost device\n");
273 chcleanup(struct cam_periph *periph)
275 struct ch_softc *softc;
277 softc = (struct ch_softc *)periph->softc;
279 devstat_remove_entry(&softc->device_stats);
280 cam_extend_release(chperiphs, periph->unit_number);
281 xpt_print(periph->path, "removing device entry\n");
282 dev_ops_remove_minor(&ch_ops, periph->unit_number);
283 kfree(softc, M_DEVBUF);
287 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
289 struct cam_periph *periph;
291 periph = (struct cam_periph *)callback_arg;
294 case AC_FOUND_DEVICE:
296 struct ccb_getdev *cgd;
299 cgd = (struct ccb_getdev *)arg;
303 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
307 * Allocate a peripheral instance for
308 * this device and start the probe
311 status = cam_periph_alloc(chregister, choninvalidate,
312 chcleanup, chstart, "ch",
313 CAM_PERIPH_BIO, cgd->ccb_h.path,
314 chasync, AC_FOUND_DEVICE, cgd);
316 if (status != CAM_REQ_CMP
317 && status != CAM_REQ_INPROG)
318 kprintf("chasync: Unable to probe new device "
319 "due to status 0x%x\n", status);
325 cam_periph_async(periph, code, path, arg);
331 chregister(struct cam_periph *periph, void *arg)
333 struct ch_softc *softc;
334 struct ccb_getdev *cgd;
336 cgd = (struct ccb_getdev *)arg;
337 if (periph == NULL) {
338 kprintf("chregister: periph was NULL!!\n");
339 return(CAM_REQ_CMP_ERR);
343 kprintf("chregister: no getdev CCB, can't register device\n");
344 return(CAM_REQ_CMP_ERR);
347 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
348 softc->state = CH_STATE_PROBE;
349 periph->softc = softc;
350 cam_extend_set(chperiphs, periph->unit_number, periph);
351 softc->quirks = CH_Q_NONE;
354 * Changers don't have a blocksize, and obviously don't support
357 cam_periph_unlock(periph);
358 devstat_add_entry(&softc->device_stats, "ch",
359 periph->unit_number, 0,
360 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
361 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI,
362 DEVSTAT_PRIORITY_OTHER);
364 /* Register the device */
365 make_dev(&ch_ops, periph->unit_number, UID_ROOT,
366 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
367 periph->unit_number);
368 cam_periph_lock(periph);
371 * Add an async callback so that we get
372 * notified if this device goes away.
374 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
377 * Lock this periph until we are setup.
378 * This first call can't block
380 cam_periph_hold(periph, 0);
381 xpt_schedule(periph, /*priority*/5);
387 chopen(struct dev_open_args *ap)
389 cdev_t dev = ap->a_head.a_dev;
390 struct cam_periph *periph;
391 struct ch_softc *softc;
395 periph = cam_extend_get(chperiphs, unit);
397 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
400 softc = (struct ch_softc *)periph->softc;
402 cam_periph_lock(periph);
404 if (softc->flags & CH_FLAG_INVALID) {
405 cam_periph_unlock(periph);
406 cam_periph_release(periph);
410 if ((softc->flags & CH_FLAG_OPEN) == 0)
411 softc->flags |= CH_FLAG_OPEN;
413 cam_periph_release(periph);
415 if ((error = cam_periph_hold(periph, PCATCH)) != 0) {
416 cam_periph_unlock(periph);
417 cam_periph_release(periph);
422 * Load information about this changer device into the softc.
424 if ((error = chgetparams(periph)) != 0) {
425 softc->flags &= ~CH_FLAG_OPEN;
426 cam_periph_unhold(periph, 1);
427 cam_periph_release(periph);
429 cam_periph_unhold(periph, 1);
436 chclose(struct dev_close_args *ap)
438 cdev_t dev = ap->a_head.a_dev;
439 struct cam_periph *periph;
440 struct ch_softc *softc;
446 periph = cam_extend_get(chperiphs, unit);
450 softc = (struct ch_softc *)periph->softc;
452 cam_periph_lock(periph);
454 softc->flags &= ~CH_FLAG_OPEN;
456 cam_periph_unlock(periph);
457 cam_periph_release(periph);
463 chstart(struct cam_periph *periph, union ccb *start_ccb)
465 struct ch_softc *softc;
467 softc = (struct ch_softc *)periph->softc;
469 switch (softc->state) {
470 case CH_STATE_NORMAL:
472 if (periph->immediate_priority <= periph->pinfo.priority){
473 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING;
475 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
477 periph->immediate_priority = CAM_PRIORITY_NONE;
478 wakeup(&periph->ccb_list);
488 * Include the block descriptor when calculating the mode
491 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
492 sizeof(struct scsi_mode_blk_desc) +
493 sizeof(struct page_element_address_assignment);
495 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO);
497 * Get the element address assignment page.
499 scsi_mode_sense(&start_ccb->csio,
502 /* tag_action */ MSG_SIMPLE_Q_TAG,
503 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
505 /* page_code */ SMS_PAGE_CTRL_CURRENT,
506 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
507 /* param_buf */ (u_int8_t *)mode_buffer,
508 /* param_len */ mode_buffer_len,
509 /* sense_len */ SSD_FULL_SIZE,
510 /* timeout */ CH_TIMEOUT_MODE_SENSE);
512 start_ccb->ccb_h.ccb_bio = NULL;
513 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
514 xpt_action(start_ccb);
521 chdone(struct cam_periph *periph, union ccb *done_ccb)
523 struct ch_softc *softc;
524 struct ccb_scsiio *csio;
526 softc = (struct ch_softc *)periph->softc;
527 csio = &done_ccb->csio;
529 switch(done_ccb->ccb_h.ccb_state) {
532 struct scsi_mode_header_6 *mode_header;
533 struct page_element_address_assignment *ea;
534 char announce_buf[80];
537 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
539 ea = (struct page_element_address_assignment *)
540 find_mode_page_6(mode_header);
542 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
544 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
545 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
546 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
547 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
548 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
549 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
550 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
551 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
552 softc->sc_picker = softc->sc_firsts[CHET_MT];
554 #define PLURAL(c) (c) == 1 ? "" : "s"
555 ksnprintf(announce_buf, sizeof(announce_buf),
556 "%d slot%s, %d drive%s, "
557 "%d picker%s, %d portal%s",
558 softc->sc_counts[CHET_ST],
559 PLURAL(softc->sc_counts[CHET_ST]),
560 softc->sc_counts[CHET_DT],
561 PLURAL(softc->sc_counts[CHET_DT]),
562 softc->sc_counts[CHET_MT],
563 PLURAL(softc->sc_counts[CHET_MT]),
564 softc->sc_counts[CHET_IE],
565 PLURAL(softc->sc_counts[CHET_IE]));
570 error = cherror(done_ccb, CAM_RETRY_SELTO,
571 SF_RETRY_UA | SF_NO_PRINT);
573 * Retry any UNIT ATTENTION type errors. They
574 * are expected at boot.
576 if (error == ERESTART) {
578 * A retry was scheuled, so
582 } else if (error != 0) {
584 struct scsi_mode_sense_6 *sms;
586 sms = (struct scsi_mode_sense_6 *)
587 done_ccb->csio.cdb_io.cdb_bytes;
590 * Check to see if block descriptors were
591 * disabled. Some devices don't like that.
592 * We're taking advantage of the fact that
593 * the first few bytes of the 6 and 10 byte
594 * mode sense commands are the same. If
595 * block descriptors were disabled, enable
596 * them and re-send the command.
598 if (sms->byte2 & SMS_DBD) {
599 sms->byte2 &= ~SMS_DBD;
600 xpt_action(done_ccb);
601 softc->quirks |= CH_Q_NO_DBD;
606 /* Don't wedge this device's queue */
607 cam_release_devq(done_ccb->ccb_h.path,
616 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
617 == CAM_SCSI_STATUS_ERROR)
618 scsi_sense_print(&done_ccb->csio);
620 xpt_print(periph->path,
621 "got CAM status %#x\n",
622 done_ccb->ccb_h.status);
624 xpt_print(periph->path, "fatal error, failed "
625 "to attach to device\n");
627 cam_periph_invalidate(periph);
629 announce_buf[0] = '\0';
632 if (announce_buf[0] != '\0')
633 xpt_announce_periph(periph, announce_buf);
634 softc->state = CH_STATE_NORMAL;
635 kfree(mode_header, M_SCSICH);
637 * Since our peripheral may be invalidated by an error
638 * above or an external event, we must release our CCB
639 * before releasing the probe lock on the peripheral.
640 * The peripheral will only go away once the last lock
641 * is removed, and we need it around for the CCB release
644 xpt_release_ccb(done_ccb);
645 cam_periph_unhold(periph, 0);
650 /* Caller will release the CCB */
651 wakeup(&done_ccb->ccb_h.cbfcnp);
657 xpt_release_ccb(done_ccb);
661 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
663 struct ch_softc *softc;
664 struct cam_periph *periph;
666 periph = xpt_path_periph(ccb->ccb_h.path);
667 softc = (struct ch_softc *)periph->softc;
669 return (cam_periph_error(ccb, cam_flags, sense_flags,
674 chioctl(struct dev_ioctl_args *ap)
676 cdev_t dev = ap->a_head.a_dev;
677 caddr_t addr = ap->a_data;
678 int flag = ap->a_fflag;
679 struct cam_periph *periph;
680 struct ch_softc *softc;
686 periph = cam_extend_get(chperiphs, unit);
690 cam_periph_lock(periph);
691 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
693 softc = (struct ch_softc *)periph->softc;
697 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
698 ("trying to do ioctl %#lx\n", ap->a_cmd));
701 * If this command can change the device's state, we must
702 * have the device open for writing.
711 if ((flag & FWRITE) == 0) {
712 cam_periph_unlock(periph);
719 error = chmove(periph, (struct changer_move *)addr);
723 error = chexchange(periph, (struct changer_exchange *)addr);
727 error = chposition(periph, (struct changer_position *)addr);
731 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
736 int new_picker = *(int *)addr;
738 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
742 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
747 struct changer_params *cp = (struct changer_params *)addr;
749 cp->cp_npickers = softc->sc_counts[CHET_MT];
750 cp->cp_nslots = softc->sc_counts[CHET_ST];
751 cp->cp_nportals = softc->sc_counts[CHET_IE];
752 cp->cp_ndrives = softc->sc_counts[CHET_DT];
756 error = chielem(periph, *(unsigned int *)addr);
761 error = chgetelemstatus(periph,
762 (struct changer_element_status_request *) addr);
768 error = chsetvoltag(periph,
769 (struct changer_set_voltag_request *) addr);
773 /* Implement prevent/allow? */
776 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror);
780 cam_periph_unlock(periph);
785 chmove(struct cam_periph *periph, struct changer_move *cm)
787 struct ch_softc *softc;
788 u_int16_t fromelem, toelem;
793 softc = (struct ch_softc *)periph->softc;
798 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
800 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
801 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
805 * Check the request against the changer's capabilities.
807 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
811 * Calculate the source and destination elements.
813 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
814 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
816 ccb = cam_periph_getccb(periph, /*priority*/ 1);
818 scsi_move_medium(&ccb->csio,
821 /* tag_action */ MSG_SIMPLE_Q_TAG,
822 /* tea */ softc->sc_picker,
825 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
826 /* sense_len */ SSD_FULL_SIZE,
827 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
829 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
830 /*sense_flags*/ SF_RETRY_UA,
831 &softc->device_stats);
833 xpt_release_ccb(ccb);
839 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
841 struct ch_softc *softc;
842 u_int16_t src, dst1, dst2;
847 softc = (struct ch_softc *)periph->softc;
851 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
852 (ce->ce_sdsttype > CHET_DT))
854 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
855 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
856 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
860 * Check the request against the changer's capabilities.
862 if (((softc->sc_exchangemask[ce->ce_srctype] &
863 (1 << ce->ce_fdsttype)) == 0) ||
864 ((softc->sc_exchangemask[ce->ce_fdsttype] &
865 (1 << ce->ce_sdsttype)) == 0))
869 * Calculate the source and destination elements.
871 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
872 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
873 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
875 ccb = cam_periph_getccb(periph, /*priority*/ 1);
877 scsi_exchange_medium(&ccb->csio,
880 /* tag_action */ MSG_SIMPLE_Q_TAG,
881 /* tea */ softc->sc_picker,
885 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
887 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
889 /* sense_len */ SSD_FULL_SIZE,
890 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
892 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
893 /*sense_flags*/ SF_RETRY_UA,
894 &softc->device_stats);
896 xpt_release_ccb(ccb);
902 chposition(struct cam_periph *periph, struct changer_position *cp)
904 struct ch_softc *softc;
910 softc = (struct ch_softc *)periph->softc;
915 if (cp->cp_type > CHET_DT)
917 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
921 * Calculate the destination element.
923 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
925 ccb = cam_periph_getccb(periph, /*priority*/ 1);
927 scsi_position_to_element(&ccb->csio,
930 /* tag_action */ MSG_SIMPLE_Q_TAG,
931 /* tea */ softc->sc_picker,
933 /* invert */ (cp->cp_flags & CP_INVERT) ?
935 /* sense_len */ SSD_FULL_SIZE,
936 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
938 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
939 /*sense_flags*/ SF_RETRY_UA,
940 &softc->device_stats);
942 xpt_release_ccb(ccb);
948 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
949 * to host native byte order in the volume serial number. The volume
950 * label as returned by the changer is transferred to user mode as
951 * nul-terminated string. Volume labels are truncated at the first
952 * space, as suggested by SCSI-2.
955 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
958 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
959 char c = voltag->vif[i];
961 uvoltag->cv_volid[i] = c;
965 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
969 * Copy an an element status descriptor to a user-mode
970 * changer_element_status structure.
974 copy_element_status(struct ch_softc *softc,
976 struct read_element_status_descriptor *desc,
977 struct changer_element_status *ces)
979 u_int16_t eaddr = scsi_2btoul(desc->eaddr);
982 ces->ces_int_addr = eaddr;
983 /* set up logical address in element status */
984 for (et = CHET_MT; et <= CHET_DT; et++) {
985 if ((softc->sc_firsts[et] <= eaddr)
986 && ((softc->sc_firsts[et] + softc->sc_counts[et])
988 ces->ces_addr = eaddr - softc->sc_firsts[et];
994 ces->ces_flags = desc->flags1;
996 ces->ces_sensecode = desc->sense_code;
997 ces->ces_sensequal = desc->sense_qual;
999 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
1000 ces->ces_flags |= CES_INVERT;
1002 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1004 eaddr = scsi_2btoul(desc->ssea);
1006 /* convert source address to logical format */
1007 for (et = CHET_MT; et <= CHET_DT; et++) {
1008 if ((softc->sc_firsts[et] <= eaddr)
1009 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1011 ces->ces_source_addr =
1012 eaddr - softc->sc_firsts[et];
1013 ces->ces_source_type = et;
1014 ces->ces_flags |= CES_SOURCE_VALID;
1019 if (!(ces->ces_flags & CES_SOURCE_VALID))
1020 kprintf("ch: warning: could not map element source "
1021 "address %ud to a valid element type\n",
1026 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1027 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag));
1028 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1029 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag));
1031 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) {
1032 ces->ces_flags |= CES_SCSIID_VALID;
1033 ces->ces_scsi_id = desc->dt_scsi_addr;
1036 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) {
1037 ces->ces_flags |= CES_LUN_VALID;
1039 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK;
1044 chgetelemstatus(struct cam_periph *periph,
1045 struct changer_element_status_request *cesr)
1047 struct read_element_status_header *st_hdr;
1048 struct read_element_status_page_header *pg_hdr;
1049 struct read_element_status_descriptor *desc;
1050 caddr_t data = NULL;
1051 size_t size, desclen;
1052 int avail, i, error = 0;
1053 struct changer_element_status *user_data = NULL;
1054 struct ch_softc *softc;
1056 int chet = cesr->cesr_element_type;
1057 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1059 softc = (struct ch_softc *)periph->softc;
1061 /* perform argument checking */
1064 * Perform a range check on the cesr_element_{base,count}
1065 * request argument fields.
1067 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1068 || (cesr->cesr_element_base + cesr->cesr_element_count)
1069 > softc->sc_counts[chet])
1073 * Request one descriptor for the given element type. This
1074 * is used to determine the size of the descriptor so that
1075 * we can allocate enough storage for all of them. We assume
1076 * that the first one can fit into 1k.
1078 cam_periph_unlock(periph);
1079 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT);
1081 cam_periph_lock(periph);
1082 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1084 scsi_read_element_status(&ccb->csio,
1086 /* cbfcnp */ chdone,
1087 /* tag_action */ MSG_SIMPLE_Q_TAG,
1088 /* voltag */ want_voltags,
1089 /* sea */ softc->sc_firsts[chet],
1091 /* data_ptr */ data,
1092 /* dxfer_len */ 1024,
1093 /* sense_len */ SSD_FULL_SIZE,
1094 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1096 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1097 /*sense_flags*/ SF_RETRY_UA,
1098 &softc->device_stats);
1102 cam_periph_unlock(periph);
1104 st_hdr = (struct read_element_status_header *)data;
1105 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1106 sizeof(struct read_element_status_header));
1107 desclen = scsi_2btoul(pg_hdr->edl);
1109 size = sizeof(struct read_element_status_header) +
1110 sizeof(struct read_element_status_page_header) +
1111 (desclen * cesr->cesr_element_count);
1114 * Reallocate storage for descriptors and get them from the
1117 kfree(data, M_DEVBUF);
1118 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT);
1120 cam_periph_lock(periph);
1121 scsi_read_element_status(&ccb->csio,
1123 /* cbfcnp */ chdone,
1124 /* tag_action */ MSG_SIMPLE_Q_TAG,
1125 /* voltag */ want_voltags,
1126 /* sea */ softc->sc_firsts[chet]
1127 + cesr->cesr_element_base,
1128 /* count */ cesr->cesr_element_count,
1129 /* data_ptr */ data,
1130 /* dxfer_len */ size,
1131 /* sense_len */ SSD_FULL_SIZE,
1132 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1134 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1135 /*sense_flags*/ SF_RETRY_UA,
1136 &softc->device_stats);
1140 cam_periph_unlock(periph);
1143 * Fill in the user status array.
1145 st_hdr = (struct read_element_status_header *)data;
1146 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1147 sizeof(struct read_element_status_header));
1148 avail = scsi_2btoul(st_hdr->count);
1150 if (avail != cesr->cesr_element_count) {
1151 xpt_print(periph->path,
1152 "warning, READ ELEMENT STATUS avail != count\n");
1155 user_data = (struct changer_element_status *)
1156 kmalloc(avail * sizeof(struct changer_element_status),
1157 M_DEVBUF, M_INTWAIT | M_ZERO);
1159 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1160 sizeof(struct read_element_status_header) +
1161 sizeof(struct read_element_status_page_header));
1163 * Set up the individual element status structures
1165 for (i = 0; i < avail; ++i) {
1166 struct changer_element_status *ces = &(user_data[i]);
1168 copy_element_status(softc, pg_hdr->flags, desc, ces);
1170 desc = (struct read_element_status_descriptor *)
1171 ((uintptr_t)desc + desclen);
1174 /* Copy element status structures out to userspace. */
1175 error = copyout(user_data,
1176 cesr->cesr_element_status,
1177 avail * sizeof(struct changer_element_status));
1178 cam_periph_lock(periph);
1181 xpt_release_ccb(ccb);
1184 kfree(data, M_DEVBUF);
1185 if (user_data != NULL)
1186 kfree(user_data, M_DEVBUF);
1192 chielem(struct cam_periph *periph,
1193 unsigned int timeout)
1196 struct ch_softc *softc;
1200 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1206 softc = (struct ch_softc *)periph->softc;
1208 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1210 scsi_initialize_element_status(&ccb->csio,
1212 /* cbfcnp */ chdone,
1213 /* tag_action */ MSG_SIMPLE_Q_TAG,
1214 /* sense_len */ SSD_FULL_SIZE,
1215 /* timeout */ timeout);
1217 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1218 /*sense_flags*/ SF_RETRY_UA,
1219 &softc->device_stats);
1221 xpt_release_ccb(ccb);
1227 chsetvoltag(struct cam_periph *periph,
1228 struct changer_set_voltag_request *csvr)
1231 struct ch_softc *softc;
1234 struct scsi_send_volume_tag_parameters ssvtp;
1239 softc = (struct ch_softc *)periph->softc;
1241 bzero(&ssvtp, sizeof(ssvtp));
1242 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1243 ssvtp.vitf[i] = ' ';
1249 if (csvr->csvr_type > CHET_DT)
1251 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1254 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1256 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1257 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1259 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1261 case CSVR_MODE_REPLACE:
1262 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1264 case CSVR_MODE_CLEAR:
1265 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1272 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1274 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1276 case CSVR_MODE_REPLACE:
1277 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1279 case CSVR_MODE_CLEAR:
1280 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1288 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1289 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1290 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1292 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1294 scsi_send_volume_tag(&ccb->csio,
1296 /* cbfcnp */ chdone,
1297 /* tag_action */ MSG_SIMPLE_Q_TAG,
1298 /* element_address */ ea,
1299 /* send_action_code */ sac,
1300 /* parameters */ &ssvtp,
1301 /* sense_len */ SSD_FULL_SIZE,
1302 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1304 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1305 /*sense_flags*/ SF_RETRY_UA,
1306 &softc->device_stats);
1308 xpt_release_ccb(ccb);
1315 chgetparams(struct cam_periph *periph)
1318 struct ch_softc *softc;
1320 int mode_buffer_len;
1321 struct page_element_address_assignment *ea;
1322 struct page_device_capabilities *cap;
1323 int error, from, dbd;
1324 u_int8_t *moves, *exchanges;
1328 softc = (struct ch_softc *)periph->softc;
1330 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1333 * The scsi_mode_sense_data structure is just a convenience
1334 * structure that allows us to easily calculate the worst-case
1335 * storage size of the mode sense buffer.
1337 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1339 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO);
1341 if (softc->quirks & CH_Q_NO_DBD)
1347 * Get the element address assignment page.
1349 scsi_mode_sense(&ccb->csio,
1351 /* cbfcnp */ chdone,
1352 /* tag_action */ MSG_SIMPLE_Q_TAG,
1354 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1355 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1356 /* param_buf */ (u_int8_t *)mode_buffer,
1357 /* param_len */ mode_buffer_len,
1358 /* sense_len */ SSD_FULL_SIZE,
1359 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1361 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1362 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1363 &softc->device_stats);
1367 struct scsi_mode_sense_6 *sms;
1369 sms = (struct scsi_mode_sense_6 *)
1370 ccb->csio.cdb_io.cdb_bytes;
1372 sms->byte2 &= ~SMS_DBD;
1373 error = cam_periph_runccb(ccb, cherror,
1374 /*cam_flags*/ CAM_RETRY_SELTO,
1375 /*sense_flags*/ SF_RETRY_UA,
1376 &softc->device_stats);
1379 * Since we disabled sense printing above, print
1380 * out the sense here since we got an error.
1382 scsi_sense_print(&ccb->csio);
1386 xpt_print(periph->path,
1387 "chgetparams: error getting element "
1389 xpt_release_ccb(ccb);
1390 kfree(mode_buffer, M_SCSICH);
1395 ea = (struct page_element_address_assignment *)
1396 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1398 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1399 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1400 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1401 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1402 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1403 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1404 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1405 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1407 bzero(mode_buffer, mode_buffer_len);
1410 * Now get the device capabilities page.
1412 scsi_mode_sense(&ccb->csio,
1414 /* cbfcnp */ chdone,
1415 /* tag_action */ MSG_SIMPLE_Q_TAG,
1417 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1418 /* page */ CH_DEVICE_CAP_PAGE,
1419 /* param_buf */ (u_int8_t *)mode_buffer,
1420 /* param_len */ mode_buffer_len,
1421 /* sense_len */ SSD_FULL_SIZE,
1422 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1424 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1425 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1426 &softc->device_stats);
1430 struct scsi_mode_sense_6 *sms;
1432 sms = (struct scsi_mode_sense_6 *)
1433 ccb->csio.cdb_io.cdb_bytes;
1435 sms->byte2 &= ~SMS_DBD;
1436 error = cam_periph_runccb(ccb, cherror,
1437 /*cam_flags*/ CAM_RETRY_SELTO,
1438 /*sense_flags*/ SF_RETRY_UA,
1439 &softc->device_stats);
1442 * Since we disabled sense printing above, print
1443 * out the sense here since we got an error.
1445 scsi_sense_print(&ccb->csio);
1449 xpt_print(periph->path,
1450 "chgetparams: error getting device "
1451 "capabilities page\n");
1452 xpt_release_ccb(ccb);
1453 kfree(mode_buffer, M_SCSICH);
1458 xpt_release_ccb(ccb);
1460 cap = (struct page_device_capabilities *)
1461 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1463 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1464 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1465 moves = cap->move_from;
1466 exchanges = cap->exchange_with;
1467 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1468 softc->sc_movemask[from] = moves[from];
1469 softc->sc_exchangemask[from] = exchanges[from];
1472 kfree(mode_buffer, M_SCSICH);
1478 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
1479 void (*cbfcnp)(struct cam_periph *, union ccb *),
1480 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1481 u_int32_t dst, int invert, u_int8_t sense_len,
1484 struct scsi_move_medium *scsi_cmd;
1486 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1487 bzero(scsi_cmd, sizeof(*scsi_cmd));
1489 scsi_cmd->opcode = MOVE_MEDIUM;
1491 scsi_ulto2b(tea, scsi_cmd->tea);
1492 scsi_ulto2b(src, scsi_cmd->src);
1493 scsi_ulto2b(dst, scsi_cmd->dst);
1496 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1501 /*flags*/ CAM_DIR_NONE,
1511 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
1512 void (*cbfcnp)(struct cam_periph *, union ccb *),
1513 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1514 u_int32_t dst1, u_int32_t dst2, int invert1,
1515 int invert2, u_int8_t sense_len, u_int32_t timeout)
1517 struct scsi_exchange_medium *scsi_cmd;
1519 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1520 bzero(scsi_cmd, sizeof(*scsi_cmd));
1522 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1524 scsi_ulto2b(tea, scsi_cmd->tea);
1525 scsi_ulto2b(src, scsi_cmd->src);
1526 scsi_ulto2b(dst1, scsi_cmd->fdst);
1527 scsi_ulto2b(dst2, scsi_cmd->sdst);
1530 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1533 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1538 /*flags*/ CAM_DIR_NONE,
1548 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
1549 void (*cbfcnp)(struct cam_periph *, union ccb *),
1550 u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
1551 int invert, u_int8_t sense_len, u_int32_t timeout)
1553 struct scsi_position_to_element *scsi_cmd;
1555 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1556 bzero(scsi_cmd, sizeof(*scsi_cmd));
1558 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1560 scsi_ulto2b(tea, scsi_cmd->tea);
1561 scsi_ulto2b(dst, scsi_cmd->dst);
1564 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1569 /*flags*/ CAM_DIR_NONE,
1579 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1580 void (*cbfcnp)(struct cam_periph *, union ccb *),
1581 u_int8_t tag_action, int voltag, u_int32_t sea,
1582 u_int32_t count, u_int8_t *data_ptr,
1583 u_int32_t dxfer_len, u_int8_t sense_len,
1586 struct scsi_read_element_status *scsi_cmd;
1588 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1589 bzero(scsi_cmd, sizeof(*scsi_cmd));
1591 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1593 scsi_ulto2b(sea, scsi_cmd->sea);
1594 scsi_ulto2b(count, scsi_cmd->count);
1595 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1598 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1603 /*flags*/ CAM_DIR_IN,
1613 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1614 void (*cbfcnp)(struct cam_periph *, union ccb *),
1615 u_int8_t tag_action, u_int8_t sense_len,
1618 struct scsi_initialize_element_status *scsi_cmd;
1620 scsi_cmd = (struct scsi_initialize_element_status *)
1621 &csio->cdb_io.cdb_bytes;
1622 bzero(scsi_cmd, sizeof(*scsi_cmd));
1624 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1629 /*flags*/ CAM_DIR_NONE,
1631 /* data_ptr */ NULL,
1639 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
1640 void (*cbfcnp)(struct cam_periph *, union ccb *),
1641 u_int8_t tag_action,
1642 u_int16_t element_address,
1643 u_int8_t send_action_code,
1644 struct scsi_send_volume_tag_parameters *parameters,
1645 u_int8_t sense_len, u_int32_t timeout)
1647 struct scsi_send_volume_tag *scsi_cmd;
1649 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1650 bzero(scsi_cmd, sizeof(*scsi_cmd));
1652 scsi_cmd->opcode = SEND_VOLUME_TAG;
1653 scsi_ulto2b(element_address, scsi_cmd->ea);
1654 scsi_cmd->sac = send_action_code;
1655 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1660 /*flags*/ CAM_DIR_OUT,
1662 /* data_ptr */ (u_int8_t *) parameters,
1663 sizeof(*parameters),