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 1.26 2007/11/29 01:48:15 pavalos 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;
230 struct cam_path *path;
233 * Create our extend array for storing the devices we attach to.
235 chperiphs = cam_extend_new();
236 if (chperiphs == NULL) {
237 kprintf("ch: Failed to alloc extend array!\n");
242 * Install a global async callback. This callback will
243 * receive async callbacks like "new device found".
245 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
246 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
248 if (status == CAM_REQ_CMP) {
249 struct ccb_setasync csa;
251 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
252 csa.ccb_h.func_code = XPT_SASYNC_CB;
253 csa.event_enable = AC_FOUND_DEVICE;
254 csa.callback = chasync;
255 csa.callback_arg = NULL;
256 xpt_action((union ccb *)&csa);
257 status = csa.ccb_h.status;
261 if (status != CAM_REQ_CMP) {
262 kprintf("ch: Failed to attach master async callback "
263 "due to status 0x%x!\n", status);
268 choninvalidate(struct cam_periph *periph)
270 struct ch_softc *softc;
271 struct ccb_setasync csa;
273 softc = (struct ch_softc *)periph->softc;
276 * De-register any async callbacks.
278 xpt_setup_ccb(&csa.ccb_h, periph->path,
280 csa.ccb_h.func_code = XPT_SASYNC_CB;
281 csa.event_enable = 0;
282 csa.callback = chasync;
283 csa.callback_arg = periph;
284 xpt_action((union ccb *)&csa);
286 softc->flags |= CH_FLAG_INVALID;
288 xpt_print_path(periph->path);
289 kprintf("lost device\n");
294 chcleanup(struct cam_periph *periph)
296 struct ch_softc *softc;
298 softc = (struct ch_softc *)periph->softc;
300 devstat_remove_entry(&softc->device_stats);
301 cam_extend_release(chperiphs, periph->unit_number);
302 xpt_print_path(periph->path);
303 kprintf("removing device entry\n");
304 dev_ops_remove(&ch_ops, -1, periph->unit_number);
305 kfree(softc, M_DEVBUF);
309 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
311 struct cam_periph *periph;
313 periph = (struct cam_periph *)callback_arg;
316 case AC_FOUND_DEVICE:
318 struct ccb_getdev *cgd;
321 cgd = (struct ccb_getdev *)arg;
325 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
329 * Allocate a peripheral instance for
330 * this device and start the probe
333 status = cam_periph_alloc(chregister, choninvalidate,
334 chcleanup, chstart, "ch",
335 CAM_PERIPH_BIO, cgd->ccb_h.path,
336 chasync, AC_FOUND_DEVICE, cgd);
338 if (status != CAM_REQ_CMP
339 && status != CAM_REQ_INPROG)
340 kprintf("chasync: Unable to probe new device "
341 "due to status 0x%x\n", status);
347 cam_periph_async(periph, code, path, arg);
353 chregister(struct cam_periph *periph, void *arg)
355 struct ch_softc *softc;
356 struct ccb_setasync csa;
357 struct ccb_getdev *cgd;
359 cgd = (struct ccb_getdev *)arg;
360 if (periph == NULL) {
361 kprintf("chregister: periph was NULL!!\n");
362 return(CAM_REQ_CMP_ERR);
366 kprintf("chregister: no getdev CCB, can't register device\n");
367 return(CAM_REQ_CMP_ERR);
370 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
371 softc->state = CH_STATE_PROBE;
372 periph->softc = softc;
373 cam_extend_set(chperiphs, periph->unit_number, periph);
374 softc->quirks = CH_Q_NONE;
377 * Changers don't have a blocksize, and obviously don't support
380 devstat_add_entry(&softc->device_stats, "ch",
381 periph->unit_number, 0,
382 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
383 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI,
384 DEVSTAT_PRIORITY_OTHER);
386 /* Register the device */
387 dev_ops_add(&ch_ops, -1, periph->unit_number);
388 make_dev(&ch_ops, periph->unit_number, UID_ROOT,
389 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
390 periph->unit_number);
393 * Add an async callback so that we get
394 * notified if this device goes away.
396 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5);
397 csa.ccb_h.func_code = XPT_SASYNC_CB;
398 csa.event_enable = AC_LOST_DEVICE;
399 csa.callback = chasync;
400 csa.callback_arg = periph;
401 xpt_action((union ccb *)&csa);
404 * Lock this peripheral until we are setup.
405 * This first call can't block
407 cam_periph_lock(periph, 0);
408 xpt_schedule(periph, /*priority*/5);
414 chopen(struct dev_open_args *ap)
416 cdev_t dev = ap->a_head.a_dev;
417 struct cam_periph *periph;
418 struct ch_softc *softc;
422 periph = cam_extend_get(chperiphs, unit);
427 softc = (struct ch_softc *)periph->softc;
430 if (softc->flags & CH_FLAG_INVALID) {
435 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
442 if ((softc->flags & CH_FLAG_OPEN) == 0) {
443 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
445 softc->flags |= CH_FLAG_OPEN;
449 * Load information about this changer device into the softc.
451 if ((error = chgetparams(periph)) != 0) {
452 softc->flags &= ~CH_FLAG_OPEN;
453 cam_periph_unlock(periph);
454 cam_periph_release(periph);
458 cam_periph_unlock(periph);
464 chclose(struct dev_close_args *ap)
466 cdev_t dev = ap->a_head.a_dev;
467 struct cam_periph *periph;
468 struct ch_softc *softc;
474 periph = cam_extend_get(chperiphs, unit);
478 softc = (struct ch_softc *)periph->softc;
480 if ((error = cam_periph_lock(periph, 0)) != 0)
483 softc->flags &= ~CH_FLAG_OPEN;
485 cam_periph_unlock(periph);
486 cam_periph_release(periph);
492 chstart(struct cam_periph *periph, union ccb *start_ccb)
494 struct ch_softc *softc;
496 softc = (struct ch_softc *)periph->softc;
498 switch (softc->state) {
499 case CH_STATE_NORMAL:
502 if (periph->immediate_priority <= periph->pinfo.priority){
503 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING;
505 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
507 periph->immediate_priority = CAM_PRIORITY_NONE;
508 wakeup(&periph->ccb_list);
519 * Include the block descriptor when calculating the mode
522 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
523 sizeof(struct scsi_mode_blk_desc) +
524 sizeof(struct page_element_address_assignment);
526 mode_buffer = kmalloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO);
528 * Get the element address assignment page.
530 scsi_mode_sense(&start_ccb->csio,
533 /* tag_action */ MSG_SIMPLE_Q_TAG,
534 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
536 /* page_code */ SMS_PAGE_CTRL_CURRENT,
537 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
538 /* param_buf */ (u_int8_t *)mode_buffer,
539 /* param_len */ mode_buffer_len,
540 /* sense_len */ SSD_FULL_SIZE,
541 /* timeout */ CH_TIMEOUT_MODE_SENSE);
543 start_ccb->ccb_h.ccb_bio = NULL;
544 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
545 xpt_action(start_ccb);
552 chdone(struct cam_periph *periph, union ccb *done_ccb)
554 struct ch_softc *softc;
555 struct ccb_scsiio *csio;
557 softc = (struct ch_softc *)periph->softc;
558 csio = &done_ccb->csio;
560 switch(done_ccb->ccb_h.ccb_state) {
563 struct scsi_mode_header_6 *mode_header;
564 struct page_element_address_assignment *ea;
565 char announce_buf[80];
568 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
570 ea = (struct page_element_address_assignment *)
571 find_mode_page_6(mode_header);
573 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
575 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
576 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
577 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
578 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
579 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
580 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
581 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
582 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
583 softc->sc_picker = softc->sc_firsts[CHET_MT];
585 #define PLURAL(c) (c) == 1 ? "" : "s"
586 ksnprintf(announce_buf, sizeof(announce_buf),
587 "%d slot%s, %d drive%s, "
588 "%d picker%s, %d portal%s",
589 softc->sc_counts[CHET_ST],
590 PLURAL(softc->sc_counts[CHET_ST]),
591 softc->sc_counts[CHET_DT],
592 PLURAL(softc->sc_counts[CHET_DT]),
593 softc->sc_counts[CHET_MT],
594 PLURAL(softc->sc_counts[CHET_MT]),
595 softc->sc_counts[CHET_IE],
596 PLURAL(softc->sc_counts[CHET_IE]));
601 error = cherror(done_ccb, CAM_RETRY_SELTO,
602 SF_RETRY_UA | SF_NO_PRINT);
604 * Retry any UNIT ATTENTION type errors. They
605 * are expected at boot.
607 if (error == ERESTART) {
609 * A retry was scheuled, so
613 } else if (error != 0) {
615 struct scsi_mode_sense_6 *sms;
617 sms = (struct scsi_mode_sense_6 *)
618 done_ccb->csio.cdb_io.cdb_bytes;
621 * Check to see if block descriptors were
622 * disabled. Some devices don't like that.
623 * We're taking advantage of the fact that
624 * the first few bytes of the 6 and 10 byte
625 * mode sense commands are the same. If
626 * block descriptors were disabled, enable
627 * them and re-send the command.
629 if (sms->byte2 & SMS_DBD) {
630 sms->byte2 &= ~SMS_DBD;
631 xpt_action(done_ccb);
632 softc->quirks |= CH_Q_NO_DBD;
637 /* Don't wedge this device's queue */
638 cam_release_devq(done_ccb->ccb_h.path,
647 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
648 == CAM_SCSI_STATUS_ERROR)
649 scsi_sense_print(&done_ccb->csio);
651 xpt_print_path(periph->path);
652 kprintf("got CAM status %#x\n",
653 done_ccb->ccb_h.status);
655 xpt_print_path(periph->path);
656 kprintf("fatal error, failed to attach to"
659 cam_periph_invalidate(periph);
661 announce_buf[0] = '\0';
664 if (announce_buf[0] != '\0')
665 xpt_announce_periph(periph, announce_buf);
666 softc->state = CH_STATE_NORMAL;
667 kfree(mode_header, M_TEMP);
669 * Since our peripheral may be invalidated by an error
670 * above or an external event, we must release our CCB
671 * before releasing the probe lock on the peripheral.
672 * The peripheral will only go away once the last lock
673 * is removed, and we need it around for the CCB release
676 xpt_release_ccb(done_ccb);
677 cam_periph_unlock(periph);
682 /* Caller will release the CCB */
683 wakeup(&done_ccb->ccb_h.cbfcnp);
689 xpt_release_ccb(done_ccb);
693 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
695 struct ch_softc *softc;
696 struct cam_periph *periph;
698 periph = xpt_path_periph(ccb->ccb_h.path);
699 softc = (struct ch_softc *)periph->softc;
701 return (cam_periph_error(ccb, cam_flags, sense_flags,
706 chioctl(struct dev_ioctl_args *ap)
708 cdev_t dev = ap->a_head.a_dev;
709 caddr_t addr = ap->a_data;
710 int flag = ap->a_fflag;
711 struct cam_periph *periph;
712 struct ch_softc *softc;
718 periph = cam_extend_get(chperiphs, unit);
722 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
724 softc = (struct ch_softc *)periph->softc;
728 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
729 ("trying to do ioctl %#lx\n", ap->a_cmd));
732 * If this command can change the device's state, we must
733 * have the device open for writing.
742 if ((flag & FWRITE) == 0)
748 error = chmove(periph, (struct changer_move *)addr);
752 error = chexchange(periph, (struct changer_exchange *)addr);
756 error = chposition(periph, (struct changer_position *)addr);
760 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
765 int new_picker = *(int *)addr;
767 if (new_picker > (softc->sc_counts[CHET_MT] - 1))
769 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
774 struct changer_params *cp = (struct changer_params *)addr;
776 cp->cp_npickers = softc->sc_counts[CHET_MT];
777 cp->cp_nslots = softc->sc_counts[CHET_ST];
778 cp->cp_nportals = softc->sc_counts[CHET_IE];
779 cp->cp_ndrives = softc->sc_counts[CHET_DT];
783 error = chielem(periph, *(unsigned int *)addr);
788 error = chgetelemstatus(periph,
789 (struct changer_element_status_request *) addr);
795 error = chsetvoltag(periph,
796 (struct changer_set_voltag_request *) addr);
800 /* Implement prevent/allow? */
803 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror);
811 chmove(struct cam_periph *periph, struct changer_move *cm)
813 struct ch_softc *softc;
814 u_int16_t fromelem, toelem;
819 softc = (struct ch_softc *)periph->softc;
824 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
826 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
827 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
831 * Check the request against the changer's capabilities.
833 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
837 * Calculate the source and destination elements.
839 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
840 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
842 ccb = cam_periph_getccb(periph, /*priority*/ 1);
844 scsi_move_medium(&ccb->csio,
847 /* tag_action */ MSG_SIMPLE_Q_TAG,
848 /* tea */ softc->sc_picker,
851 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
852 /* sense_len */ SSD_FULL_SIZE,
853 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
855 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
856 /*sense_flags*/ SF_RETRY_UA,
857 &softc->device_stats);
859 xpt_release_ccb(ccb);
865 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
867 struct ch_softc *softc;
868 u_int16_t src, dst1, dst2;
873 softc = (struct ch_softc *)periph->softc;
877 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
878 (ce->ce_sdsttype > CHET_DT))
880 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
881 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
882 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
886 * Check the request against the changer's capabilities.
888 if (((softc->sc_exchangemask[ce->ce_srctype] &
889 (1 << ce->ce_fdsttype)) == 0) ||
890 ((softc->sc_exchangemask[ce->ce_fdsttype] &
891 (1 << ce->ce_sdsttype)) == 0))
895 * Calculate the source and destination elements.
897 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
898 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
899 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
901 ccb = cam_periph_getccb(periph, /*priority*/ 1);
903 scsi_exchange_medium(&ccb->csio,
906 /* tag_action */ MSG_SIMPLE_Q_TAG,
907 /* tea */ softc->sc_picker,
911 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
913 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
915 /* sense_len */ SSD_FULL_SIZE,
916 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
918 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
919 /*sense_flags*/ SF_RETRY_UA,
920 &softc->device_stats);
922 xpt_release_ccb(ccb);
928 chposition(struct cam_periph *periph, struct changer_position *cp)
930 struct ch_softc *softc;
936 softc = (struct ch_softc *)periph->softc;
941 if (cp->cp_type > CHET_DT)
943 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
947 * Calculate the destination element.
949 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
951 ccb = cam_periph_getccb(periph, /*priority*/ 1);
953 scsi_position_to_element(&ccb->csio,
956 /* tag_action */ MSG_SIMPLE_Q_TAG,
957 /* tea */ softc->sc_picker,
959 /* invert */ (cp->cp_flags & CP_INVERT) ?
961 /* sense_len */ SSD_FULL_SIZE,
962 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
964 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
965 /*sense_flags*/ SF_RETRY_UA,
966 &softc->device_stats);
968 xpt_release_ccb(ccb);
974 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
975 * to host native byte order in the volume serial number. The volume
976 * label as returned by the changer is transferred to user mode as
977 * nul-terminated string. Volume labels are truncated at the first
978 * space, as suggested by SCSI-2.
981 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
984 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
985 char c = voltag->vif[i];
987 uvoltag->cv_volid[i] = c;
991 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
995 * Copy an an element status descriptor to a user-mode
996 * changer_element_status structure.
1000 copy_element_status(struct ch_softc *softc,
1002 struct read_element_status_descriptor *desc,
1003 struct changer_element_status *ces)
1005 u_int16_t eaddr = scsi_2btoul(desc->eaddr);
1008 ces->ces_int_addr = eaddr;
1009 /* set up logical address in element status */
1010 for (et = CHET_MT; et <= CHET_DT; et++) {
1011 if ((softc->sc_firsts[et] <= eaddr)
1012 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1014 ces->ces_addr = eaddr - softc->sc_firsts[et];
1020 ces->ces_flags = desc->flags1;
1022 ces->ces_sensecode = desc->sense_code;
1023 ces->ces_sensequal = desc->sense_qual;
1025 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
1026 ces->ces_flags |= CES_INVERT;
1028 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1030 eaddr = scsi_2btoul(desc->ssea);
1032 /* convert source address to logical format */
1033 for (et = CHET_MT; et <= CHET_DT; et++) {
1034 if ((softc->sc_firsts[et] <= eaddr)
1035 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1037 ces->ces_source_addr =
1038 eaddr - softc->sc_firsts[et];
1039 ces->ces_source_type = et;
1040 ces->ces_flags |= CES_SOURCE_VALID;
1045 if (!(ces->ces_flags & CES_SOURCE_VALID))
1046 kprintf("ch: warning: could not map element source "
1047 "address %ud to a valid element type\n",
1052 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1053 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag));
1054 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1055 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag));
1057 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) {
1058 ces->ces_flags |= CES_SCSIID_VALID;
1059 ces->ces_scsi_id = desc->dt_scsi_addr;
1062 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) {
1063 ces->ces_flags |= CES_LUN_VALID;
1065 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK;
1070 chgetelemstatus(struct cam_periph *periph,
1071 struct changer_element_status_request *cesr)
1073 struct read_element_status_header *st_hdr;
1074 struct read_element_status_page_header *pg_hdr;
1075 struct read_element_status_descriptor *desc;
1076 caddr_t data = NULL;
1077 size_t size, desclen;
1078 int avail, i, error = 0;
1079 struct changer_element_status *user_data = NULL;
1080 struct ch_softc *softc;
1082 int chet = cesr->cesr_element_type;
1083 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1085 softc = (struct ch_softc *)periph->softc;
1087 /* perform argument checking */
1090 * Perform a range check on the cesr_element_{base,count}
1091 * request argument fields.
1093 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1094 || (cesr->cesr_element_base + cesr->cesr_element_count)
1095 > softc->sc_counts[chet])
1099 * Request one descriptor for the given element type. This
1100 * is used to determine the size of the descriptor so that
1101 * we can allocate enough storage for all of them. We assume
1102 * that the first one can fit into 1k.
1104 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT);
1106 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1108 scsi_read_element_status(&ccb->csio,
1110 /* cbfcnp */ chdone,
1111 /* tag_action */ MSG_SIMPLE_Q_TAG,
1112 /* voltag */ want_voltags,
1113 /* sea */ softc->sc_firsts[chet],
1115 /* data_ptr */ data,
1116 /* dxfer_len */ 1024,
1117 /* sense_len */ SSD_FULL_SIZE,
1118 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1120 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1121 /*sense_flags*/ SF_RETRY_UA,
1122 &softc->device_stats);
1127 st_hdr = (struct read_element_status_header *)data;
1128 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1129 sizeof(struct read_element_status_header));
1130 desclen = scsi_2btoul(pg_hdr->edl);
1132 size = sizeof(struct read_element_status_header) +
1133 sizeof(struct read_element_status_page_header) +
1134 (desclen * cesr->cesr_element_count);
1137 * Reallocate storage for descriptors and get them from the
1140 kfree(data, M_DEVBUF);
1141 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT);
1143 scsi_read_element_status(&ccb->csio,
1145 /* cbfcnp */ chdone,
1146 /* tag_action */ MSG_SIMPLE_Q_TAG,
1147 /* voltag */ want_voltags,
1148 /* sea */ softc->sc_firsts[chet]
1149 + cesr->cesr_element_base,
1150 /* count */ cesr->cesr_element_count,
1151 /* data_ptr */ data,
1152 /* dxfer_len */ size,
1153 /* sense_len */ SSD_FULL_SIZE,
1154 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1156 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1157 /*sense_flags*/ SF_RETRY_UA,
1158 &softc->device_stats);
1164 * Fill in the user status array.
1166 st_hdr = (struct read_element_status_header *)data;
1167 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1168 sizeof(struct read_element_status_header));
1169 avail = scsi_2btoul(st_hdr->count);
1171 if (avail != cesr->cesr_element_count) {
1172 xpt_print_path(periph->path);
1173 kprintf("warning, READ ELEMENT STATUS avail != count\n");
1176 user_data = (struct changer_element_status *)
1177 kmalloc(avail * sizeof(struct changer_element_status),
1178 M_DEVBUF, M_INTWAIT | M_ZERO);
1180 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1181 sizeof(struct read_element_status_header) +
1182 sizeof(struct read_element_status_page_header));
1184 * Set up the individual element status structures
1186 for (i = 0; i < avail; ++i) {
1187 struct changer_element_status *ces = &(user_data[i]);
1189 copy_element_status(softc, pg_hdr->flags, desc, ces);
1191 desc = (struct read_element_status_descriptor *)
1192 ((uintptr_t)desc + desclen);
1195 /* Copy element status structures out to userspace. */
1196 error = copyout(user_data,
1197 cesr->cesr_element_status,
1198 avail * sizeof(struct changer_element_status));
1201 xpt_release_ccb(ccb);
1204 kfree(data, M_DEVBUF);
1205 if (user_data != NULL)
1206 kfree(user_data, M_DEVBUF);
1212 chielem(struct cam_periph *periph,
1213 unsigned int timeout)
1216 struct ch_softc *softc;
1220 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1226 softc = (struct ch_softc *)periph->softc;
1228 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1230 scsi_initialize_element_status(&ccb->csio,
1232 /* cbfcnp */ chdone,
1233 /* tag_action */ MSG_SIMPLE_Q_TAG,
1234 /* sense_len */ SSD_FULL_SIZE,
1235 /* timeout */ timeout);
1237 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1238 /*sense_flags*/ SF_RETRY_UA,
1239 &softc->device_stats);
1241 xpt_release_ccb(ccb);
1247 chsetvoltag(struct cam_periph *periph,
1248 struct changer_set_voltag_request *csvr)
1251 struct ch_softc *softc;
1254 struct scsi_send_volume_tag_parameters ssvtp;
1259 softc = (struct ch_softc *)periph->softc;
1261 bzero(&ssvtp, sizeof(ssvtp));
1262 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1263 ssvtp.vitf[i] = ' ';
1269 if (csvr->csvr_type > CHET_DT)
1271 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1274 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1276 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1277 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1279 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1281 case CSVR_MODE_REPLACE:
1282 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1284 case CSVR_MODE_CLEAR:
1285 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1292 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1294 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1296 case CSVR_MODE_REPLACE:
1297 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1299 case CSVR_MODE_CLEAR:
1300 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1308 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1309 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1310 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1312 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1314 scsi_send_volume_tag(&ccb->csio,
1316 /* cbfcnp */ chdone,
1317 /* tag_action */ MSG_SIMPLE_Q_TAG,
1318 /* element_address */ ea,
1319 /* send_action_code */ sac,
1320 /* parameters */ &ssvtp,
1321 /* sense_len */ SSD_FULL_SIZE,
1322 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1324 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1325 /*sense_flags*/ SF_RETRY_UA,
1326 &softc->device_stats);
1328 xpt_release_ccb(ccb);
1335 chgetparams(struct cam_periph *periph)
1338 struct ch_softc *softc;
1340 int mode_buffer_len;
1341 struct page_element_address_assignment *ea;
1342 struct page_device_capabilities *cap;
1343 int error, from, dbd;
1344 u_int8_t *moves, *exchanges;
1348 softc = (struct ch_softc *)periph->softc;
1350 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1353 * The scsi_mode_sense_data structure is just a convenience
1354 * structure that allows us to easily calculate the worst-case
1355 * storage size of the mode sense buffer.
1357 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1359 mode_buffer = kmalloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO);
1361 if (softc->quirks & CH_Q_NO_DBD)
1367 * Get the element address assignment page.
1369 scsi_mode_sense(&ccb->csio,
1371 /* cbfcnp */ chdone,
1372 /* tag_action */ MSG_SIMPLE_Q_TAG,
1374 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1375 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1376 /* param_buf */ (u_int8_t *)mode_buffer,
1377 /* param_len */ mode_buffer_len,
1378 /* sense_len */ SSD_FULL_SIZE,
1379 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1381 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1382 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1383 &softc->device_stats);
1387 struct scsi_mode_sense_6 *sms;
1389 sms = (struct scsi_mode_sense_6 *)
1390 ccb->csio.cdb_io.cdb_bytes;
1392 sms->byte2 &= ~SMS_DBD;
1393 error = cam_periph_runccb(ccb, cherror,
1394 /*cam_flags*/ CAM_RETRY_SELTO,
1395 /*sense_flags*/ SF_RETRY_UA,
1396 &softc->device_stats);
1399 * Since we disabled sense printing above, print
1400 * out the sense here since we got an error.
1402 scsi_sense_print(&ccb->csio);
1406 xpt_print_path(periph->path);
1407 kprintf("chgetparams: error getting element "
1409 xpt_release_ccb(ccb);
1410 kfree(mode_buffer, M_TEMP);
1415 ea = (struct page_element_address_assignment *)
1416 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1418 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1419 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1420 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1421 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1422 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1423 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1424 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1425 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1427 bzero(mode_buffer, mode_buffer_len);
1430 * Now get the device capabilities page.
1432 scsi_mode_sense(&ccb->csio,
1434 /* cbfcnp */ chdone,
1435 /* tag_action */ MSG_SIMPLE_Q_TAG,
1437 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1438 /* page */ CH_DEVICE_CAP_PAGE,
1439 /* param_buf */ (u_int8_t *)mode_buffer,
1440 /* param_len */ mode_buffer_len,
1441 /* sense_len */ SSD_FULL_SIZE,
1442 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1444 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1445 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1446 &softc->device_stats);
1450 struct scsi_mode_sense_6 *sms;
1452 sms = (struct scsi_mode_sense_6 *)
1453 ccb->csio.cdb_io.cdb_bytes;
1455 sms->byte2 &= ~SMS_DBD;
1456 error = cam_periph_runccb(ccb, cherror,
1457 /*cam_flags*/ CAM_RETRY_SELTO,
1458 /*sense_flags*/ SF_RETRY_UA,
1459 &softc->device_stats);
1462 * Since we disabled sense printing above, print
1463 * out the sense here since we got an error.
1465 scsi_sense_print(&ccb->csio);
1469 xpt_print_path(periph->path);
1470 kprintf("chgetparams: error getting device "
1471 "capabilities page\n");
1472 xpt_release_ccb(ccb);
1473 kfree(mode_buffer, M_TEMP);
1478 xpt_release_ccb(ccb);
1480 cap = (struct page_device_capabilities *)
1481 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1483 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1484 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1485 moves = cap->move_from;
1486 exchanges = cap->exchange_with;
1487 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1488 softc->sc_movemask[from] = moves[from];
1489 softc->sc_exchangemask[from] = exchanges[from];
1492 kfree(mode_buffer, M_TEMP);
1498 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
1499 void (*cbfcnp)(struct cam_periph *, union ccb *),
1500 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1501 u_int32_t dst, int invert, u_int8_t sense_len,
1504 struct scsi_move_medium *scsi_cmd;
1506 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1507 bzero(scsi_cmd, sizeof(*scsi_cmd));
1509 scsi_cmd->opcode = MOVE_MEDIUM;
1511 scsi_ulto2b(tea, scsi_cmd->tea);
1512 scsi_ulto2b(src, scsi_cmd->src);
1513 scsi_ulto2b(dst, scsi_cmd->dst);
1516 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1521 /*flags*/ CAM_DIR_NONE,
1531 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
1532 void (*cbfcnp)(struct cam_periph *, union ccb *),
1533 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1534 u_int32_t dst1, u_int32_t dst2, int invert1,
1535 int invert2, u_int8_t sense_len, u_int32_t timeout)
1537 struct scsi_exchange_medium *scsi_cmd;
1539 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1540 bzero(scsi_cmd, sizeof(*scsi_cmd));
1542 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1544 scsi_ulto2b(tea, scsi_cmd->tea);
1545 scsi_ulto2b(src, scsi_cmd->src);
1546 scsi_ulto2b(dst1, scsi_cmd->fdst);
1547 scsi_ulto2b(dst2, scsi_cmd->sdst);
1550 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1553 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1558 /*flags*/ CAM_DIR_NONE,
1568 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
1569 void (*cbfcnp)(struct cam_periph *, union ccb *),
1570 u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
1571 int invert, u_int8_t sense_len, u_int32_t timeout)
1573 struct scsi_position_to_element *scsi_cmd;
1575 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1576 bzero(scsi_cmd, sizeof(*scsi_cmd));
1578 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1580 scsi_ulto2b(tea, scsi_cmd->tea);
1581 scsi_ulto2b(dst, scsi_cmd->dst);
1584 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1589 /*flags*/ CAM_DIR_NONE,
1599 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1600 void (*cbfcnp)(struct cam_periph *, union ccb *),
1601 u_int8_t tag_action, int voltag, u_int32_t sea,
1602 u_int32_t count, u_int8_t *data_ptr,
1603 u_int32_t dxfer_len, u_int8_t sense_len,
1606 struct scsi_read_element_status *scsi_cmd;
1608 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1609 bzero(scsi_cmd, sizeof(*scsi_cmd));
1611 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1613 scsi_ulto2b(sea, scsi_cmd->sea);
1614 scsi_ulto2b(count, scsi_cmd->count);
1615 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1618 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1623 /*flags*/ CAM_DIR_IN,
1633 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1634 void (*cbfcnp)(struct cam_periph *, union ccb *),
1635 u_int8_t tag_action, u_int8_t sense_len,
1638 struct scsi_initialize_element_status *scsi_cmd;
1640 scsi_cmd = (struct scsi_initialize_element_status *)
1641 &csio->cdb_io.cdb_bytes;
1642 bzero(scsi_cmd, sizeof(*scsi_cmd));
1644 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1649 /*flags*/ CAM_DIR_NONE,
1651 /* data_ptr */ NULL,
1659 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
1660 void (*cbfcnp)(struct cam_periph *, union ccb *),
1661 u_int8_t tag_action,
1662 u_int16_t element_address,
1663 u_int8_t send_action_code,
1664 struct scsi_send_volume_tag_parameters *parameters,
1665 u_int8_t sense_len, u_int32_t timeout)
1667 struct scsi_send_volume_tag *scsi_cmd;
1669 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1670 bzero(scsi_cmd, sizeof(*scsi_cmd));
1672 scsi_cmd->opcode = SEND_VOLUME_TAG;
1673 scsi_ulto2b(element_address, scsi_cmd->ea);
1674 scsi_cmd->sac = send_action_code;
1675 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1680 /*flags*/ CAM_DIR_OUT,
1682 /* data_ptr */ (u_int8_t *) parameters,
1683 sizeof(*parameters),