1 /*-
2 * SPDX-License-Identifier: (BSD-2-Clause AND BSD-4-Clause)
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions, and the following disclaimer,
13 * without modification, immediately at the beginning of the file.
14 * 2. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 /*-
31 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
32 * All rights reserved.
33 *
34 * Partially based on an autochanger driver written by Stefan Grefen
35 * and on an autochanger driver written by the Systems Programming Group
36 * at the University of Utah Computer Science Department.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgements:
48 * This product includes software developed by Jason R. Thorpe
49 * for And Communications, http://www.and.com/
50 * 4. The name of the author may not be used to endorse or promote products
51 * derived from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
54 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
55 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
56 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
57 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
58 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
59 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
60 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
61 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
62 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
63 * SUCH DAMAGE.
64 *
65 * $NetBSD: ch.c,v 1.34 1998/08/31 22:28:06 cgd Exp $
66 */
67
68 #include <sys/param.h>
69 #include <sys/queue.h>
70 #include <sys/systm.h>
71 #include <sys/kernel.h>
72 #include <sys/types.h>
73 #include <sys/malloc.h>
74 #include <sys/fcntl.h>
75 #include <sys/conf.h>
76 #include <sys/chio.h>
77 #include <sys/errno.h>
78 #include <sys/devicestat.h>
79
80 #include <cam/cam.h>
81 #include <cam/cam_ccb.h>
82 #include <cam/cam_periph.h>
83 #include <cam/cam_xpt_periph.h>
84 #include <cam/cam_debug.h>
85
86 #include <cam/scsi/scsi_all.h>
87 #include <cam/scsi/scsi_message.h>
88 #include <cam/scsi/scsi_ch.h>
89
90 /*
91 * Timeout definitions for various changer related commands. They may
92 * be too short for some devices (especially the timeout for INITIALIZE
93 * ELEMENT STATUS).
94 */
95
96 static const uint32_t CH_TIMEOUT_MODE_SENSE = 6000;
97 static const uint32_t CH_TIMEOUT_MOVE_MEDIUM = 15 * 60 * 1000;
98 static const uint32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 15 * 60 * 1000;
99 static const uint32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 15 * 60 * 1000;
100 static const uint32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 5 * 60 * 1000;
101 static const uint32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
102 static const uint32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
103
104 typedef enum {
105 CH_FLAG_INVALID = 0x001
106 } ch_flags;
107
108 typedef enum {
109 CH_STATE_PROBE,
110 CH_STATE_NORMAL
111 } ch_state;
112
113 typedef enum {
114 CH_CCB_PROBE
115 } ch_ccb_types;
116
117 typedef enum {
118 CH_Q_NONE = 0x00,
119 CH_Q_NO_DBD = 0x01,
120 CH_Q_NO_DVCID = 0x02
121 } ch_quirks;
122
123 #define CH_Q_BIT_STRING \
124 "\020" \
125 "\001NO_DBD" \
126 "\002NO_DVCID"
127
128 #define ccb_state ppriv_field0
129 #define ccb_bp ppriv_ptr1
130
131 struct scsi_mode_sense_data {
132 struct scsi_mode_header_6 header;
133 struct scsi_mode_blk_desc blk_desc;
134 union {
135 struct page_element_address_assignment ea;
136 struct page_transport_geometry_parameters tg;
137 struct page_device_capabilities cap;
138 } pages;
139 };
140
141 struct ch_softc {
142 ch_flags flags;
143 ch_state state;
144 ch_quirks quirks;
145 struct devstat *device_stats;
146 struct cdev *dev;
147 int open_count;
148
149 int sc_picker; /* current picker */
150
151 /*
152 * The following information is obtained from the
153 * element address assignment page.
154 */
155 int sc_firsts[CHET_MAX + 1]; /* firsts */
156 int sc_counts[CHET_MAX + 1]; /* counts */
157
158 /*
159 * The following mask defines the legal combinations
160 * of elements for the MOVE MEDIUM command.
161 */
162 uint8_t sc_movemask[CHET_MAX + 1];
163
164 /*
165 * As above, but for EXCHANGE MEDIUM.
166 */
167 uint8_t sc_exchangemask[CHET_MAX + 1];
168
169 /*
170 * Quirks; see below. XXX KDM not implemented yet
171 */
172 int sc_settledelay; /* delay for settle */
173 };
174
175 static d_open_t chopen;
176 static d_close_t chclose;
177 static d_ioctl_t chioctl;
178 static periph_init_t chinit;
179 static periph_ctor_t chregister;
180 static periph_oninv_t choninvalidate;
181 static periph_dtor_t chcleanup;
182 static periph_start_t chstart;
183 static void chasync(void *callback_arg, uint32_t code,
184 struct cam_path *path, void *arg);
185 static void chdone(struct cam_periph *periph,
186 union ccb *done_ccb);
187 static int cherror(union ccb *ccb, uint32_t cam_flags,
188 uint32_t sense_flags);
189 static int chmove(struct cam_periph *periph,
190 struct changer_move *cm);
191 static int chexchange(struct cam_periph *periph,
192 struct changer_exchange *ce);
193 static int chposition(struct cam_periph *periph,
194 struct changer_position *cp);
195 static int chgetelemstatus(struct cam_periph *periph,
196 int scsi_version, u_long cmd,
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);
203 static int chscsiversion(struct cam_periph *periph);
204
205 static struct periph_driver chdriver =
206 {
207 chinit, "ch",
208 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
209 };
210
211 PERIPHDRIVER_DECLARE(ch, chdriver);
212
213 static struct cdevsw ch_cdevsw = {
214 .d_version = D_VERSION,
215 .d_flags = D_TRACKCLOSE,
216 .d_open = chopen,
217 .d_close = chclose,
218 .d_ioctl = chioctl,
219 .d_name = "ch",
220 };
221
222 static MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
223
224 static void
chinit(void)225 chinit(void)
226 {
227 cam_status status;
228
229 /*
230 * Install a global async callback. This callback will
231 * receive async callbacks like "new device found".
232 */
233 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
234
235 if (status != CAM_REQ_CMP) {
236 printf("ch: Failed to attach master async callback "
237 "due to status 0x%x!\n", status);
238 }
239 }
240
241 static void
chdevgonecb(void * arg)242 chdevgonecb(void *arg)
243 {
244 struct ch_softc *softc;
245 struct cam_periph *periph;
246 struct mtx *mtx;
247 int i;
248
249 periph = (struct cam_periph *)arg;
250 mtx = cam_periph_mtx(periph);
251 mtx_lock(mtx);
252
253 softc = (struct ch_softc *)periph->softc;
254 KASSERT(softc->open_count >= 0, ("Negative open count %d",
255 softc->open_count));
256
257 /*
258 * When we get this callback, we will get no more close calls from
259 * devfs. So if we have any dangling opens, we need to release the
260 * reference held for that particular context.
261 */
262 for (i = 0; i < softc->open_count; i++)
263 cam_periph_release_locked(periph);
264
265 softc->open_count = 0;
266
267 /*
268 * Release the reference held for the device node, it is gone now.
269 */
270 cam_periph_release_locked(periph);
271
272 /*
273 * We reference the lock directly here, instead of using
274 * cam_periph_unlock(). The reason is that the final call to
275 * cam_periph_release_locked() above could result in the periph
276 * getting freed. If that is the case, dereferencing the periph
277 * with a cam_periph_unlock() call would cause a page fault.
278 */
279 mtx_unlock(mtx);
280 }
281
282 static void
choninvalidate(struct cam_periph * periph)283 choninvalidate(struct cam_periph *periph)
284 {
285 struct ch_softc *softc;
286
287 softc = (struct ch_softc *)periph->softc;
288
289 /*
290 * De-register any async callbacks.
291 */
292 xpt_register_async(0, chasync, periph, periph->path);
293
294 softc->flags |= CH_FLAG_INVALID;
295
296 /*
297 * Tell devfs this device has gone away, and ask for a callback
298 * when it has cleaned up its state.
299 */
300 destroy_dev_sched_cb(softc->dev, chdevgonecb, periph);
301 }
302
303 static void
chcleanup(struct cam_periph * periph)304 chcleanup(struct cam_periph *periph)
305 {
306 struct ch_softc *softc;
307
308 softc = (struct ch_softc *)periph->softc;
309
310 devstat_remove_entry(softc->device_stats);
311
312 free(softc, M_DEVBUF);
313 }
314
315 static void
chasync(void * callback_arg,uint32_t code,struct cam_path * path,void * arg)316 chasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
317 {
318 struct cam_periph *periph;
319
320 periph = (struct cam_periph *)callback_arg;
321
322 switch(code) {
323 case AC_FOUND_DEVICE:
324 {
325 struct ccb_getdev *cgd;
326 cam_status status;
327
328 cgd = (struct ccb_getdev *)arg;
329 if (cgd == NULL)
330 break;
331
332 if (cgd->protocol != PROTO_SCSI)
333 break;
334 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
335 break;
336 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
337 break;
338
339 /*
340 * Allocate a peripheral instance for
341 * this device and start the probe
342 * process.
343 */
344 status = cam_periph_alloc(chregister, choninvalidate,
345 chcleanup, chstart, "ch",
346 CAM_PERIPH_BIO, path,
347 chasync, AC_FOUND_DEVICE, cgd);
348
349 if (status != CAM_REQ_CMP
350 && status != CAM_REQ_INPROG)
351 printf("chasync: Unable to probe new device "
352 "due to status 0x%x\n", status);
353
354 break;
355 }
356 default:
357 cam_periph_async(periph, code, path, arg);
358 break;
359 }
360 }
361
362 static cam_status
chregister(struct cam_periph * periph,void * arg)363 chregister(struct cam_periph *periph, void *arg)
364 {
365 struct ch_softc *softc;
366 struct ccb_getdev *cgd;
367 struct ccb_pathinq cpi;
368 struct make_dev_args args;
369 int error;
370
371 cgd = (struct ccb_getdev *)arg;
372 if (cgd == NULL) {
373 printf("chregister: no getdev CCB, can't register device\n");
374 return(CAM_REQ_CMP_ERR);
375 }
376
377 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
378
379 if (softc == NULL) {
380 printf("chregister: Unable to probe new device. "
381 "Unable to allocate softc\n");
382 return(CAM_REQ_CMP_ERR);
383 }
384
385 bzero(softc, sizeof(*softc));
386 softc->state = CH_STATE_PROBE;
387 periph->softc = softc;
388 softc->quirks = CH_Q_NONE;
389
390 /*
391 * The DVCID and CURDATA bits were not introduced until the SMC
392 * spec. If this device claims SCSI-2 or earlier support, then it
393 * very likely does not support these bits.
394 */
395 if (cgd->inq_data.version <= SCSI_REV_2)
396 softc->quirks |= CH_Q_NO_DVCID;
397
398 xpt_path_inq(&cpi, periph->path);
399
400 /*
401 * Changers don't have a blocksize, and obviously don't support
402 * tagged queueing.
403 */
404 cam_periph_unlock(periph);
405 softc->device_stats = devstat_new_entry("ch",
406 periph->unit_number, 0,
407 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
408 SID_TYPE(&cgd->inq_data) |
409 XPORT_DEVSTAT_TYPE(cpi.transport),
410 DEVSTAT_PRIORITY_OTHER);
411
412 /*
413 * Acquire a reference to the periph before we create the devfs
414 * instance for it. We'll release this reference once the devfs
415 * instance has been freed.
416 */
417 if (cam_periph_acquire(periph) != 0) {
418 xpt_print(periph->path, "%s: lost periph during "
419 "registration!\n", __func__);
420 cam_periph_lock(periph);
421 return (CAM_REQ_CMP_ERR);
422 }
423
424 /* Register the device */
425 make_dev_args_init(&args);
426 args.mda_devsw = &ch_cdevsw;
427 args.mda_unit = periph->unit_number;
428 args.mda_uid = UID_ROOT;
429 args.mda_gid = GID_OPERATOR;
430 args.mda_mode = 0600;
431 args.mda_si_drv1 = periph;
432 error = make_dev_s(&args, &softc->dev, "%s%d", periph->periph_name,
433 periph->unit_number);
434 cam_periph_lock(periph);
435 if (error != 0) {
436 cam_periph_release_locked(periph);
437 return (CAM_REQ_CMP_ERR);
438 }
439
440 /*
441 * Add an async callback so that we get
442 * notified if this device goes away.
443 */
444 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
445
446 /*
447 * Lock this periph until we are setup.
448 * This first call can't block
449 */
450 (void)cam_periph_hold(periph, PRIBIO);
451 xpt_schedule(periph, CAM_PRIORITY_DEV);
452
453 return(CAM_REQ_CMP);
454 }
455
456 static int
chopen(struct cdev * dev,int flags,int fmt,struct thread * td)457 chopen(struct cdev *dev, int flags, int fmt, struct thread *td)
458 {
459 struct cam_periph *periph;
460 struct ch_softc *softc;
461 int error;
462
463 periph = (struct cam_periph *)dev->si_drv1;
464 if (cam_periph_acquire(periph) != 0)
465 return (ENXIO);
466
467 softc = (struct ch_softc *)periph->softc;
468
469 cam_periph_lock(periph);
470
471 if (softc->flags & CH_FLAG_INVALID) {
472 cam_periph_release_locked(periph);
473 cam_periph_unlock(periph);
474 return(ENXIO);
475 }
476
477 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
478 cam_periph_unlock(periph);
479 cam_periph_release(periph);
480 return (error);
481 }
482
483 /*
484 * Load information about this changer device into the softc.
485 */
486 if ((error = chgetparams(periph)) != 0) {
487 cam_periph_unhold(periph);
488 cam_periph_release_locked(periph);
489 cam_periph_unlock(periph);
490 return(error);
491 }
492
493 cam_periph_unhold(periph);
494
495 softc->open_count++;
496
497 cam_periph_unlock(periph);
498
499 return(error);
500 }
501
502 static int
chclose(struct cdev * dev,int flag,int fmt,struct thread * td)503 chclose(struct cdev *dev, int flag, int fmt, struct thread *td)
504 {
505 struct cam_periph *periph;
506 struct ch_softc *softc;
507 struct mtx *mtx;
508
509 periph = (struct cam_periph *)dev->si_drv1;
510 mtx = cam_periph_mtx(periph);
511 mtx_lock(mtx);
512
513 softc = (struct ch_softc *)periph->softc;
514 softc->open_count--;
515
516 cam_periph_release_locked(periph);
517
518 /*
519 * We reference the lock directly here, instead of using
520 * cam_periph_unlock(). The reason is that the call to
521 * cam_periph_release_locked() above could result in the periph
522 * getting freed. If that is the case, dereferencing the periph
523 * with a cam_periph_unlock() call would cause a page fault.
524 *
525 * cam_periph_release() avoids this problem using the same method,
526 * but we're manually acquiring and dropping the lock here to
527 * protect the open count and avoid another lock acquisition and
528 * release.
529 */
530 mtx_unlock(mtx);
531
532 return(0);
533 }
534
535 static void
chstart(struct cam_periph * periph,union ccb * start_ccb)536 chstart(struct cam_periph *periph, union ccb *start_ccb)
537 {
538 struct ch_softc *softc;
539
540 softc = (struct ch_softc *)periph->softc;
541
542 switch (softc->state) {
543 case CH_STATE_NORMAL:
544 {
545 xpt_release_ccb(start_ccb);
546 break;
547 }
548 case CH_STATE_PROBE:
549 {
550 int mode_buffer_len;
551 void *mode_buffer;
552
553 /*
554 * Include the block descriptor when calculating the mode
555 * buffer length,
556 */
557 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
558 sizeof(struct scsi_mode_blk_desc) +
559 sizeof(struct page_element_address_assignment);
560
561 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
562
563 if (mode_buffer == NULL) {
564 printf("chstart: couldn't malloc mode sense data\n");
565 break;
566 }
567 bzero(mode_buffer, mode_buffer_len);
568
569 /*
570 * Get the element address assignment page.
571 */
572 scsi_mode_sense(&start_ccb->csio,
573 /* retries */ 1,
574 /* cbfcnp */ chdone,
575 /* tag_action */ MSG_SIMPLE_Q_TAG,
576 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
577 FALSE : TRUE,
578 /* pc */ SMS_PAGE_CTRL_CURRENT,
579 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
580 /* param_buf */ (uint8_t *)mode_buffer,
581 /* param_len */ mode_buffer_len,
582 /* sense_len */ SSD_FULL_SIZE,
583 /* timeout */ CH_TIMEOUT_MODE_SENSE);
584
585 start_ccb->ccb_h.ccb_bp = NULL;
586 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
587 xpt_action(start_ccb);
588 break;
589 }
590 }
591 }
592
593 static void
chdone(struct cam_periph * periph,union ccb * done_ccb)594 chdone(struct cam_periph *periph, union ccb *done_ccb)
595 {
596 struct ch_softc *softc;
597 struct ccb_scsiio *csio;
598
599 softc = (struct ch_softc *)periph->softc;
600 csio = &done_ccb->csio;
601
602 switch(done_ccb->ccb_h.ccb_state) {
603 case CH_CCB_PROBE:
604 {
605 struct scsi_mode_header_6 *mode_header;
606 struct page_element_address_assignment *ea;
607 char announce_buf[80];
608
609 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
610
611 ea = (struct page_element_address_assignment *)
612 find_mode_page_6(mode_header);
613
614 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
615
616 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
617 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
618 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
619 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
620 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
621 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
622 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
623 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
624 softc->sc_picker = softc->sc_firsts[CHET_MT];
625
626 #define PLURAL(c) (c) == 1 ? "" : "s"
627 snprintf(announce_buf, sizeof(announce_buf),
628 "%d slot%s, %d drive%s, "
629 "%d picker%s, %d portal%s",
630 softc->sc_counts[CHET_ST],
631 PLURAL(softc->sc_counts[CHET_ST]),
632 softc->sc_counts[CHET_DT],
633 PLURAL(softc->sc_counts[CHET_DT]),
634 softc->sc_counts[CHET_MT],
635 PLURAL(softc->sc_counts[CHET_MT]),
636 softc->sc_counts[CHET_IE],
637 PLURAL(softc->sc_counts[CHET_IE]));
638 #undef PLURAL
639 if (announce_buf[0] != '\0') {
640 xpt_announce_periph(periph, announce_buf);
641 xpt_announce_quirks(periph, softc->quirks,
642 CH_Q_BIT_STRING);
643 }
644 } else {
645 int error;
646
647 error = cherror(done_ccb, CAM_RETRY_SELTO,
648 SF_RETRY_UA | SF_NO_PRINT);
649 /*
650 * Retry any UNIT ATTENTION type errors. They
651 * are expected at boot.
652 */
653 if (error == ERESTART) {
654 /*
655 * A retry was scheduled, so
656 * just return.
657 */
658 return;
659 } else if (error != 0) {
660 struct scsi_mode_sense_6 *sms;
661 int frozen, retry_scheduled;
662
663 sms = (struct scsi_mode_sense_6 *)
664 done_ccb->csio.cdb_io.cdb_bytes;
665 frozen = (done_ccb->ccb_h.status &
666 CAM_DEV_QFRZN) != 0;
667
668 /*
669 * Check to see if block descriptors were
670 * disabled. Some devices don't like that.
671 * We're taking advantage of the fact that
672 * the first few bytes of the 6 and 10 byte
673 * mode sense commands are the same. If
674 * block descriptors were disabled, enable
675 * them and re-send the command.
676 */
677 if ((sms->byte2 & SMS_DBD) != 0 &&
678 (periph->flags & CAM_PERIPH_INVALID) == 0) {
679 sms->byte2 &= ~SMS_DBD;
680 xpt_action(done_ccb);
681 softc->quirks |= CH_Q_NO_DBD;
682 retry_scheduled = 1;
683 } else
684 retry_scheduled = 0;
685
686 /* Don't wedge this device's queue */
687 if (frozen)
688 cam_release_devq(done_ccb->ccb_h.path,
689 /*relsim_flags*/0,
690 /*reduction*/0,
691 /*timeout*/0,
692 /*getcount_only*/0);
693
694 if (retry_scheduled)
695 return;
696
697 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
698 == CAM_SCSI_STATUS_ERROR)
699 scsi_sense_print(&done_ccb->csio);
700 else {
701 xpt_print(periph->path,
702 "got CAM status %#x\n",
703 done_ccb->ccb_h.status);
704 }
705 xpt_print(periph->path, "fatal error, failed "
706 "to attach to device\n");
707
708 cam_periph_invalidate(periph);
709 }
710 }
711 softc->state = CH_STATE_NORMAL;
712 free(mode_header, M_SCSICH);
713 /*
714 * Since our peripheral may be invalidated by an error
715 * above or an external event, we must release our CCB
716 * before releasing the probe lock on the peripheral.
717 * The peripheral will only go away once the last lock
718 * is removed, and we need it around for the CCB release
719 * operation.
720 */
721 xpt_release_ccb(done_ccb);
722 cam_periph_unhold(periph);
723 return;
724 }
725 default:
726 break;
727 }
728 xpt_release_ccb(done_ccb);
729 }
730
731 static int
cherror(union ccb * ccb,uint32_t cam_flags,uint32_t sense_flags)732 cherror(union ccb *ccb, uint32_t cam_flags, uint32_t sense_flags)
733 {
734
735 return (cam_periph_error(ccb, cam_flags, sense_flags));
736 }
737
738 static int
chioctl(struct cdev * dev,u_long cmd,caddr_t addr,int flag,struct thread * td)739 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
740 {
741 struct cam_periph *periph;
742 struct ch_softc *softc;
743 int error;
744
745 periph = (struct cam_periph *)dev->si_drv1;
746 cam_periph_lock(periph);
747 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
748
749 softc = (struct ch_softc *)periph->softc;
750
751 error = 0;
752
753 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
754 ("trying to do ioctl %#lx\n", cmd));
755
756 /*
757 * If this command can change the device's state, we must
758 * have the device open for writing.
759 */
760 switch (cmd) {
761 case CHIOGPICKER:
762 case CHIOGPARAMS:
763 case OCHIOGSTATUS:
764 case CHIOGSTATUS:
765 break;
766
767 default:
768 if ((flag & FWRITE) == 0) {
769 cam_periph_unlock(periph);
770 return (EBADF);
771 }
772 }
773
774 switch (cmd) {
775 case CHIOMOVE:
776 error = chmove(periph, (struct changer_move *)addr);
777 break;
778
779 case CHIOEXCHANGE:
780 error = chexchange(periph, (struct changer_exchange *)addr);
781 break;
782
783 case CHIOPOSITION:
784 error = chposition(periph, (struct changer_position *)addr);
785 break;
786
787 case CHIOGPICKER:
788 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
789 break;
790
791 case CHIOSPICKER:
792 {
793 int new_picker = *(int *)addr;
794
795 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
796 error = EINVAL;
797 break;
798 }
799 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
800 break;
801 }
802 case CHIOGPARAMS:
803 {
804 struct changer_params *cp = (struct changer_params *)addr;
805
806 cp->cp_npickers = softc->sc_counts[CHET_MT];
807 cp->cp_nslots = softc->sc_counts[CHET_ST];
808 cp->cp_nportals = softc->sc_counts[CHET_IE];
809 cp->cp_ndrives = softc->sc_counts[CHET_DT];
810 break;
811 }
812 case CHIOIELEM:
813 error = chielem(periph, *(unsigned int *)addr);
814 break;
815
816 case OCHIOGSTATUS:
817 {
818 error = chgetelemstatus(periph, SCSI_REV_2, cmd,
819 (struct changer_element_status_request *)addr);
820 break;
821 }
822
823 case CHIOGSTATUS:
824 {
825 int scsi_version;
826
827 scsi_version = chscsiversion(periph);
828 if (scsi_version >= SCSI_REV_0) {
829 error = chgetelemstatus(periph, scsi_version, cmd,
830 (struct changer_element_status_request *)addr);
831 }
832 else { /* unable to determine the SCSI version */
833 cam_periph_unlock(periph);
834 return (ENXIO);
835 }
836 break;
837 }
838
839 case CHIOSETVOLTAG:
840 {
841 error = chsetvoltag(periph,
842 (struct changer_set_voltag_request *) addr);
843 break;
844 }
845
846 /* Implement prevent/allow? */
847
848 default:
849 error = cam_periph_ioctl(periph, cmd, addr, cherror);
850 break;
851 }
852
853 cam_periph_unlock(periph);
854 return (error);
855 }
856
857 static int
chmove(struct cam_periph * periph,struct changer_move * cm)858 chmove(struct cam_periph *periph, struct changer_move *cm)
859 {
860 struct ch_softc *softc;
861 uint16_t fromelem, toelem;
862 union ccb *ccb;
863 int error;
864
865 error = 0;
866 softc = (struct ch_softc *)periph->softc;
867
868 /*
869 * Check arguments.
870 */
871 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
872 return (EINVAL);
873 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
874 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
875 return (ENODEV);
876
877 /*
878 * Check the request against the changer's capabilities.
879 */
880 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
881 return (ENODEV);
882
883 /*
884 * Calculate the source and destination elements.
885 */
886 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
887 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
888
889 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
890
891 scsi_move_medium(&ccb->csio,
892 /* retries */ 1,
893 /* cbfcnp */ chdone,
894 /* tag_action */ MSG_SIMPLE_Q_TAG,
895 /* tea */ softc->sc_picker,
896 /* src */ fromelem,
897 /* dst */ toelem,
898 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
899 /* sense_len */ SSD_FULL_SIZE,
900 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
901
902 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
903 /*sense_flags*/ SF_RETRY_UA,
904 softc->device_stats);
905
906 xpt_release_ccb(ccb);
907
908 return(error);
909 }
910
911 static int
chexchange(struct cam_periph * periph,struct changer_exchange * ce)912 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
913 {
914 struct ch_softc *softc;
915 uint16_t src, dst1, dst2;
916 union ccb *ccb;
917 int error;
918
919 error = 0;
920 softc = (struct ch_softc *)periph->softc;
921 /*
922 * Check arguments.
923 */
924 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
925 (ce->ce_sdsttype > CHET_DT))
926 return (EINVAL);
927 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
928 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
929 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
930 return (ENODEV);
931
932 /*
933 * Check the request against the changer's capabilities.
934 */
935 if (((softc->sc_exchangemask[ce->ce_srctype] &
936 (1 << ce->ce_fdsttype)) == 0) ||
937 ((softc->sc_exchangemask[ce->ce_fdsttype] &
938 (1 << ce->ce_sdsttype)) == 0))
939 return (ENODEV);
940
941 /*
942 * Calculate the source and destination elements.
943 */
944 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
945 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
946 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
947
948 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
949
950 scsi_exchange_medium(&ccb->csio,
951 /* retries */ 1,
952 /* cbfcnp */ chdone,
953 /* tag_action */ MSG_SIMPLE_Q_TAG,
954 /* tea */ softc->sc_picker,
955 /* src */ src,
956 /* dst1 */ dst1,
957 /* dst2 */ dst2,
958 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
959 TRUE : FALSE,
960 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
961 TRUE : FALSE,
962 /* sense_len */ SSD_FULL_SIZE,
963 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
964
965 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
966 /*sense_flags*/ SF_RETRY_UA,
967 softc->device_stats);
968
969 xpt_release_ccb(ccb);
970
971 return(error);
972 }
973
974 static int
chposition(struct cam_periph * periph,struct changer_position * cp)975 chposition(struct cam_periph *periph, struct changer_position *cp)
976 {
977 struct ch_softc *softc;
978 uint16_t dst;
979 union ccb *ccb;
980 int error;
981
982 error = 0;
983 softc = (struct ch_softc *)periph->softc;
984
985 /*
986 * Check arguments.
987 */
988 if (cp->cp_type > CHET_DT)
989 return (EINVAL);
990 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
991 return (ENODEV);
992
993 /*
994 * Calculate the destination element.
995 */
996 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
997
998 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
999
1000 scsi_position_to_element(&ccb->csio,
1001 /* retries */ 1,
1002 /* cbfcnp */ chdone,
1003 /* tag_action */ MSG_SIMPLE_Q_TAG,
1004 /* tea */ softc->sc_picker,
1005 /* dst */ dst,
1006 /* invert */ (cp->cp_flags & CP_INVERT) ?
1007 TRUE : FALSE,
1008 /* sense_len */ SSD_FULL_SIZE,
1009 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
1010
1011 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1012 /*sense_flags*/ SF_RETRY_UA,
1013 softc->device_stats);
1014
1015 xpt_release_ccb(ccb);
1016
1017 return(error);
1018 }
1019
1020 /*
1021 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
1022 * to host native byte order in the volume serial number. The volume
1023 * label as returned by the changer is transferred to user mode as
1024 * nul-terminated string. Volume labels are truncated at the first
1025 * space, as suggested by SCSI-2.
1026 */
1027 static void
copy_voltag(struct changer_voltag * uvoltag,struct volume_tag * voltag)1028 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
1029 {
1030 int i;
1031 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
1032 char c = voltag->vif[i];
1033 if (c && c != ' ')
1034 uvoltag->cv_volid[i] = c;
1035 else
1036 break;
1037 }
1038 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
1039 }
1040
1041 /*
1042 * Copy an element status descriptor to a user-mode
1043 * changer_element_status structure.
1044 */
1045 static void
copy_element_status(struct ch_softc * softc,uint16_t flags,struct read_element_status_descriptor * desc,struct changer_element_status * ces,int scsi_version)1046 copy_element_status(struct ch_softc *softc,
1047 uint16_t flags,
1048 struct read_element_status_descriptor *desc,
1049 struct changer_element_status *ces,
1050 int scsi_version)
1051 {
1052 uint16_t eaddr = scsi_2btoul(desc->eaddr);
1053 uint16_t et;
1054 struct volume_tag *pvol_tag = NULL, *avol_tag = NULL;
1055 struct read_element_status_device_id *devid = NULL;
1056
1057 ces->ces_int_addr = eaddr;
1058 /* set up logical address in element status */
1059 for (et = CHET_MT; et <= CHET_DT; et++) {
1060 if ((softc->sc_firsts[et] <= eaddr)
1061 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1062 > eaddr)) {
1063 ces->ces_addr = eaddr - softc->sc_firsts[et];
1064 ces->ces_type = et;
1065 break;
1066 }
1067 }
1068
1069 ces->ces_flags = desc->flags1;
1070
1071 ces->ces_sensecode = desc->sense_code;
1072 ces->ces_sensequal = desc->sense_qual;
1073
1074 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
1075 ces->ces_flags |= CES_INVERT;
1076
1077 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1078 eaddr = scsi_2btoul(desc->ssea);
1079
1080 /* convert source address to logical format */
1081 for (et = CHET_MT; et <= CHET_DT; et++) {
1082 if ((softc->sc_firsts[et] <= eaddr)
1083 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1084 > eaddr)) {
1085 ces->ces_source_addr =
1086 eaddr - softc->sc_firsts[et];
1087 ces->ces_source_type = et;
1088 ces->ces_flags |= CES_SOURCE_VALID;
1089 break;
1090 }
1091 }
1092
1093 if (!(ces->ces_flags & CES_SOURCE_VALID))
1094 printf("ch: warning: could not map element source "
1095 "address %ud to a valid element type\n",
1096 eaddr);
1097 }
1098
1099 /*
1100 * pvoltag and avoltag are common between SCSI-2 and later versions
1101 */
1102 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1103 pvol_tag = &desc->voltag_devid.pvoltag;
1104 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1105 avol_tag = (flags & READ_ELEMENT_STATUS_PVOLTAG) ?
1106 &desc->voltag_devid.voltag[1] :&desc->voltag_devid.pvoltag;
1107 /*
1108 * For SCSI-3 and later, element status can carry designator and
1109 * other information.
1110 */
1111 if (scsi_version >= SCSI_REV_SPC) {
1112 if ((flags & READ_ELEMENT_STATUS_PVOLTAG) ^
1113 (flags & READ_ELEMENT_STATUS_AVOLTAG))
1114 devid = &desc->voltag_devid.pvol_and_devid.devid;
1115 else if (!(flags & READ_ELEMENT_STATUS_PVOLTAG) &&
1116 !(flags & READ_ELEMENT_STATUS_AVOLTAG))
1117 devid = &desc->voltag_devid.devid;
1118 else /* Have both PVOLTAG and AVOLTAG */
1119 devid = &desc->voltag_devid.vol_tags_and_devid.devid;
1120 }
1121
1122 if (pvol_tag)
1123 copy_voltag(&(ces->ces_pvoltag), pvol_tag);
1124 if (avol_tag)
1125 copy_voltag(&(ces->ces_pvoltag), avol_tag);
1126 if (devid != NULL) {
1127 if (devid->designator_length > 0) {
1128 bcopy((void *)devid->designator,
1129 (void *)ces->ces_designator,
1130 devid->designator_length);
1131 ces->ces_designator_length = devid->designator_length;
1132 /*
1133 * Make sure we are always NUL terminated. The
1134 * This won't matter for the binary code set,
1135 * since the user will only pay attention to the
1136 * length field.
1137 */
1138 ces->ces_designator[devid->designator_length]= '\0';
1139 }
1140 if (devid->piv_assoc_designator_type &
1141 READ_ELEMENT_STATUS_PIV_SET) {
1142 ces->ces_flags |= CES_PIV;
1143 ces->ces_protocol_id =
1144 READ_ELEMENT_STATUS_PROTOCOL_ID(
1145 devid->prot_code_set);
1146 }
1147 ces->ces_code_set =
1148 READ_ELEMENT_STATUS_CODE_SET(devid->prot_code_set);
1149 ces->ces_assoc = READ_ELEMENT_STATUS_ASSOCIATION(
1150 devid->piv_assoc_designator_type);
1151 ces->ces_designator_type = READ_ELEMENT_STATUS_DESIGNATOR_TYPE(
1152 devid->piv_assoc_designator_type);
1153 } else if (scsi_version > SCSI_REV_2) {
1154 /* SCSI-SPC and No devid, no designator */
1155 ces->ces_designator_length = 0;
1156 ces->ces_designator[0] = '\0';
1157 ces->ces_protocol_id = CES_PROTOCOL_ID_FCP_4;
1158 }
1159
1160 if (scsi_version <= SCSI_REV_2) {
1161 if (desc->dt_or_obsolete.scsi_2.dt_scsi_flags &
1162 READ_ELEMENT_STATUS_DT_IDVALID) {
1163 ces->ces_flags |= CES_SCSIID_VALID;
1164 ces->ces_scsi_id =
1165 desc->dt_or_obsolete.scsi_2.dt_scsi_addr;
1166 }
1167
1168 if (desc->dt_or_obsolete.scsi_2.dt_scsi_addr &
1169 READ_ELEMENT_STATUS_DT_LUVALID) {
1170 ces->ces_flags |= CES_LUN_VALID;
1171 ces->ces_scsi_lun =
1172 desc->dt_or_obsolete.scsi_2.dt_scsi_flags &
1173 READ_ELEMENT_STATUS_DT_LUNMASK;
1174 }
1175 }
1176 }
1177
1178 static int
chgetelemstatus(struct cam_periph * periph,int scsi_version,u_long cmd,struct changer_element_status_request * cesr)1179 chgetelemstatus(struct cam_periph *periph, int scsi_version, u_long cmd,
1180 struct changer_element_status_request *cesr)
1181 {
1182 struct read_element_status_header *st_hdr;
1183 struct read_element_status_page_header *pg_hdr;
1184 struct read_element_status_descriptor *desc;
1185 caddr_t data = NULL;
1186 size_t size, desclen;
1187 u_int avail, i;
1188 int curdata, dvcid, sense_flags;
1189 int try_no_dvcid = 0;
1190 struct changer_element_status *user_data = NULL;
1191 struct ch_softc *softc;
1192 union ccb *ccb;
1193 int chet = cesr->cesr_element_type;
1194 int error = 0;
1195 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1196
1197 softc = (struct ch_softc *)periph->softc;
1198
1199 /* perform argument checking */
1200
1201 /*
1202 * Perform a range check on the cesr_element_{base,count}
1203 * request argument fields.
1204 */
1205 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1206 || (cesr->cesr_element_base + cesr->cesr_element_count)
1207 > softc->sc_counts[chet])
1208 return (EINVAL);
1209
1210 /*
1211 * Request one descriptor for the given element type. This
1212 * is used to determine the size of the descriptor so that
1213 * we can allocate enough storage for all of them. We assume
1214 * that the first one can fit into 1k.
1215 */
1216 cam_periph_unlock(periph);
1217 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK);
1218
1219 cam_periph_lock(periph);
1220 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1221
1222 sense_flags = SF_RETRY_UA;
1223 if (softc->quirks & CH_Q_NO_DVCID) {
1224 dvcid = 0;
1225 curdata = 0;
1226 } else {
1227 dvcid = 1;
1228 curdata = 1;
1229 /*
1230 * Don't print anything for an Illegal Request, because
1231 * these flags can cause some changers to complain. We'll
1232 * retry without them if we get an error.
1233 */
1234 sense_flags |= SF_QUIET_IR;
1235 }
1236
1237 retry_einval:
1238
1239 scsi_read_element_status(&ccb->csio,
1240 /* retries */ 1,
1241 /* cbfcnp */ chdone,
1242 /* tag_action */ MSG_SIMPLE_Q_TAG,
1243 /* voltag */ want_voltags,
1244 /* sea */ softc->sc_firsts[chet],
1245 /* curdata */ curdata,
1246 /* dvcid */ dvcid,
1247 /* count */ 1,
1248 /* data_ptr */ data,
1249 /* dxfer_len */ 1024,
1250 /* sense_len */ SSD_FULL_SIZE,
1251 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1252
1253 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1254 /*sense_flags*/ sense_flags,
1255 softc->device_stats);
1256
1257 /*
1258 * An Illegal Request sense key (only used if there is no asc/ascq)
1259 * or 0x24,0x00 for an ASC/ASCQ both map to EINVAL. If dvcid or
1260 * curdata are set (we set both or neither), try turning them off
1261 * and see if the command is successful.
1262 */
1263 if ((error == EINVAL)
1264 && (dvcid || curdata)) {
1265 dvcid = 0;
1266 curdata = 0;
1267 error = 0;
1268 /* At this point we want to report any Illegal Request */
1269 sense_flags &= ~SF_QUIET_IR;
1270 try_no_dvcid = 1;
1271 goto retry_einval;
1272 }
1273
1274 /*
1275 * In this case, we tried a read element status with dvcid and
1276 * curdata set, and it failed. We retried without those bits, and
1277 * it succeeded. Suggest to the user that he set a quirk, so we
1278 * don't go through the retry process the first time in the future.
1279 * This should only happen on changers that claim SCSI-3 or higher,
1280 * but don't support these bits.
1281 */
1282 if ((try_no_dvcid != 0)
1283 && (error == 0))
1284 softc->quirks |= CH_Q_NO_DVCID;
1285
1286 if (error)
1287 goto done;
1288 cam_periph_unlock(periph);
1289
1290 st_hdr = (struct read_element_status_header *)data;
1291 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1292 sizeof(struct read_element_status_header));
1293 desclen = scsi_2btoul(pg_hdr->edl);
1294
1295 size = sizeof(struct read_element_status_header) +
1296 sizeof(struct read_element_status_page_header) +
1297 (desclen * cesr->cesr_element_count);
1298 /*
1299 * Reallocate storage for descriptors and get them from the
1300 * device.
1301 */
1302 free(data, M_DEVBUF);
1303 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK);
1304
1305 cam_periph_lock(periph);
1306 scsi_read_element_status(&ccb->csio,
1307 /* retries */ 1,
1308 /* cbfcnp */ chdone,
1309 /* tag_action */ MSG_SIMPLE_Q_TAG,
1310 /* voltag */ want_voltags,
1311 /* sea */ softc->sc_firsts[chet]
1312 + cesr->cesr_element_base,
1313 /* curdata */ curdata,
1314 /* dvcid */ dvcid,
1315 /* count */ cesr->cesr_element_count,
1316 /* data_ptr */ data,
1317 /* dxfer_len */ size,
1318 /* sense_len */ SSD_FULL_SIZE,
1319 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1320
1321 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1322 /*sense_flags*/ SF_RETRY_UA,
1323 softc->device_stats);
1324
1325 if (error)
1326 goto done;
1327 cam_periph_unlock(periph);
1328
1329 /*
1330 * Fill in the user status array.
1331 */
1332 st_hdr = (struct read_element_status_header *)data;
1333 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1334 sizeof(struct read_element_status_header));
1335 avail = scsi_2btoul(st_hdr->count);
1336
1337 if (avail != cesr->cesr_element_count) {
1338 xpt_print(periph->path,
1339 "warning, READ ELEMENT STATUS avail != count\n");
1340 }
1341
1342 user_data = (struct changer_element_status *)
1343 malloc(avail * sizeof(struct changer_element_status),
1344 M_DEVBUF, M_WAITOK | M_ZERO);
1345
1346 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1347 sizeof(struct read_element_status_header) +
1348 sizeof(struct read_element_status_page_header));
1349 /*
1350 * Set up the individual element status structures
1351 */
1352 for (i = 0; i < avail; ++i) {
1353 struct changer_element_status *ces;
1354
1355 /*
1356 * In the changer_element_status structure, fields from
1357 * the beginning to the field of ces_scsi_lun are common
1358 * between SCSI-2 and SCSI-3, while all the rest are new
1359 * from SCSI-3. In order to maintain backward compatibility
1360 * of the chio command, the ces pointer, below, is computed
1361 * such that it lines up with the structure boundary
1362 * corresponding to the SCSI version.
1363 */
1364 ces = cmd == OCHIOGSTATUS ?
1365 (struct changer_element_status *)
1366 ((unsigned char *)user_data + i *
1367 (offsetof(struct changer_element_status,ces_scsi_lun)+1)):
1368 &user_data[i];
1369
1370 copy_element_status(softc, pg_hdr->flags, desc,
1371 ces, scsi_version);
1372
1373 desc = (struct read_element_status_descriptor *)
1374 ((unsigned char *)desc + desclen);
1375 }
1376
1377 /* Copy element status structures out to userspace. */
1378 if (cmd == OCHIOGSTATUS)
1379 error = copyout(user_data,
1380 cesr->cesr_element_status,
1381 avail* (offsetof(struct changer_element_status,
1382 ces_scsi_lun) + 1));
1383 else
1384 error = copyout(user_data,
1385 cesr->cesr_element_status,
1386 avail * sizeof(struct changer_element_status));
1387
1388 cam_periph_lock(periph);
1389
1390 done:
1391 xpt_release_ccb(ccb);
1392
1393 if (data != NULL)
1394 free(data, M_DEVBUF);
1395 if (user_data != NULL)
1396 free(user_data, M_DEVBUF);
1397
1398 return (error);
1399 }
1400
1401 static int
chielem(struct cam_periph * periph,unsigned int timeout)1402 chielem(struct cam_periph *periph,
1403 unsigned int timeout)
1404 {
1405 union ccb *ccb;
1406 struct ch_softc *softc;
1407 int error;
1408
1409 if (!timeout) {
1410 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1411 } else {
1412 timeout *= 1000;
1413 }
1414
1415 error = 0;
1416 softc = (struct ch_softc *)periph->softc;
1417
1418 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1419
1420 scsi_initialize_element_status(&ccb->csio,
1421 /* retries */ 1,
1422 /* cbfcnp */ chdone,
1423 /* tag_action */ MSG_SIMPLE_Q_TAG,
1424 /* sense_len */ SSD_FULL_SIZE,
1425 /* timeout */ timeout);
1426
1427 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1428 /*sense_flags*/ SF_RETRY_UA,
1429 softc->device_stats);
1430
1431 xpt_release_ccb(ccb);
1432
1433 return(error);
1434 }
1435
1436 static int
chsetvoltag(struct cam_periph * periph,struct changer_set_voltag_request * csvr)1437 chsetvoltag(struct cam_periph *periph,
1438 struct changer_set_voltag_request *csvr)
1439 {
1440 union ccb *ccb;
1441 struct ch_softc *softc;
1442 uint16_t ea;
1443 uint8_t sac;
1444 struct scsi_send_volume_tag_parameters ssvtp;
1445 int error;
1446 int i;
1447
1448 error = 0;
1449 softc = (struct ch_softc *)periph->softc;
1450
1451 bzero(&ssvtp, sizeof(ssvtp));
1452 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1453 ssvtp.vitf[i] = ' ';
1454 }
1455
1456 /*
1457 * Check arguments.
1458 */
1459 if (csvr->csvr_type > CHET_DT)
1460 return EINVAL;
1461 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1462 return ENODEV;
1463
1464 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1465
1466 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1467 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1468 case CSVR_MODE_SET:
1469 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1470 break;
1471 case CSVR_MODE_REPLACE:
1472 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1473 break;
1474 case CSVR_MODE_CLEAR:
1475 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1476 break;
1477 default:
1478 error = EINVAL;
1479 goto out;
1480 }
1481 } else {
1482 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1483 case CSVR_MODE_SET:
1484 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1485 break;
1486 case CSVR_MODE_REPLACE:
1487 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1488 break;
1489 case CSVR_MODE_CLEAR:
1490 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1491 break;
1492 default:
1493 error = EINVAL;
1494 goto out;
1495 }
1496 }
1497
1498 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1499 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1500 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1501
1502 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1503
1504 scsi_send_volume_tag(&ccb->csio,
1505 /* retries */ 1,
1506 /* cbfcnp */ chdone,
1507 /* tag_action */ MSG_SIMPLE_Q_TAG,
1508 /* element_address */ ea,
1509 /* send_action_code */ sac,
1510 /* parameters */ &ssvtp,
1511 /* sense_len */ SSD_FULL_SIZE,
1512 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1513
1514 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1515 /*sense_flags*/ SF_RETRY_UA,
1516 softc->device_stats);
1517
1518 xpt_release_ccb(ccb);
1519
1520 out:
1521 return error;
1522 }
1523
1524 static int
chgetparams(struct cam_periph * periph)1525 chgetparams(struct cam_periph *periph)
1526 {
1527 union ccb *ccb;
1528 struct ch_softc *softc;
1529 void *mode_buffer;
1530 int mode_buffer_len;
1531 struct page_element_address_assignment *ea;
1532 struct page_device_capabilities *cap;
1533 int error, from, dbd;
1534 uint8_t *moves, *exchanges;
1535
1536 error = 0;
1537
1538 softc = (struct ch_softc *)periph->softc;
1539
1540 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1541
1542 /*
1543 * The scsi_mode_sense_data structure is just a convenience
1544 * structure that allows us to easily calculate the worst-case
1545 * storage size of the mode sense buffer.
1546 */
1547 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1548
1549 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
1550
1551 if (mode_buffer == NULL) {
1552 printf("chgetparams: couldn't malloc mode sense data\n");
1553 xpt_release_ccb(ccb);
1554 return(ENOSPC);
1555 }
1556
1557 bzero(mode_buffer, mode_buffer_len);
1558
1559 if (softc->quirks & CH_Q_NO_DBD)
1560 dbd = FALSE;
1561 else
1562 dbd = TRUE;
1563
1564 /*
1565 * Get the element address assignment page.
1566 */
1567 scsi_mode_sense(&ccb->csio,
1568 /* retries */ 1,
1569 /* cbfcnp */ chdone,
1570 /* tag_action */ MSG_SIMPLE_Q_TAG,
1571 /* dbd */ dbd,
1572 /* pc */ SMS_PAGE_CTRL_CURRENT,
1573 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1574 /* param_buf */ (uint8_t *)mode_buffer,
1575 /* param_len */ mode_buffer_len,
1576 /* sense_len */ SSD_FULL_SIZE,
1577 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1578
1579 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1580 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1581 softc->device_stats);
1582
1583 if (error) {
1584 if (dbd) {
1585 struct scsi_mode_sense_6 *sms;
1586
1587 sms = (struct scsi_mode_sense_6 *)
1588 ccb->csio.cdb_io.cdb_bytes;
1589
1590 sms->byte2 &= ~SMS_DBD;
1591 error = cam_periph_runccb(ccb, cherror,
1592 /*cam_flags*/ CAM_RETRY_SELTO,
1593 /*sense_flags*/ SF_RETRY_UA,
1594 softc->device_stats);
1595 } else {
1596 /*
1597 * Since we disabled sense printing above, print
1598 * out the sense here since we got an error.
1599 */
1600 scsi_sense_print(&ccb->csio);
1601 }
1602
1603 if (error) {
1604 xpt_print(periph->path,
1605 "chgetparams: error getting element "
1606 "address page\n");
1607 xpt_release_ccb(ccb);
1608 free(mode_buffer, M_SCSICH);
1609 return(error);
1610 }
1611 }
1612
1613 ea = (struct page_element_address_assignment *)
1614 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1615
1616 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1617 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1618 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1619 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1620 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1621 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1622 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1623 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1624
1625 bzero(mode_buffer, mode_buffer_len);
1626
1627 /*
1628 * Now get the device capabilities page.
1629 */
1630 scsi_mode_sense(&ccb->csio,
1631 /* retries */ 1,
1632 /* cbfcnp */ chdone,
1633 /* tag_action */ MSG_SIMPLE_Q_TAG,
1634 /* dbd */ dbd,
1635 /* pc */ SMS_PAGE_CTRL_CURRENT,
1636 /* page */ CH_DEVICE_CAP_PAGE,
1637 /* param_buf */ (uint8_t *)mode_buffer,
1638 /* param_len */ mode_buffer_len,
1639 /* sense_len */ SSD_FULL_SIZE,
1640 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1641
1642 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1643 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1644 softc->device_stats);
1645
1646 if (error) {
1647 if (dbd) {
1648 struct scsi_mode_sense_6 *sms;
1649
1650 sms = (struct scsi_mode_sense_6 *)
1651 ccb->csio.cdb_io.cdb_bytes;
1652
1653 sms->byte2 &= ~SMS_DBD;
1654 error = cam_periph_runccb(ccb, cherror,
1655 /*cam_flags*/ CAM_RETRY_SELTO,
1656 /*sense_flags*/ SF_RETRY_UA,
1657 softc->device_stats);
1658 } else {
1659 /*
1660 * Since we disabled sense printing above, print
1661 * out the sense here since we got an error.
1662 */
1663 scsi_sense_print(&ccb->csio);
1664 }
1665
1666 if (error) {
1667 xpt_print(periph->path,
1668 "chgetparams: error getting device "
1669 "capabilities page\n");
1670 xpt_release_ccb(ccb);
1671 free(mode_buffer, M_SCSICH);
1672 return(error);
1673 }
1674 }
1675
1676 xpt_release_ccb(ccb);
1677
1678 cap = (struct page_device_capabilities *)
1679 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1680
1681 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1682 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1683 moves = cap->move_from;
1684 exchanges = cap->exchange_with;
1685 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1686 softc->sc_movemask[from] = moves[from];
1687 softc->sc_exchangemask[from] = exchanges[from];
1688 }
1689
1690 free(mode_buffer, M_SCSICH);
1691
1692 return(error);
1693 }
1694
1695 static int
chscsiversion(struct cam_periph * periph)1696 chscsiversion(struct cam_periph *periph)
1697 {
1698 struct scsi_inquiry_data *inq_data;
1699 struct ccb_getdev *cgd;
1700 int dev_scsi_version;
1701
1702 cam_periph_assert(periph, MA_OWNED);
1703 if ((cgd = (struct ccb_getdev *)xpt_alloc_ccb_nowait()) == NULL)
1704 return (-1);
1705 /*
1706 * Get the device information.
1707 */
1708 xpt_setup_ccb(&cgd->ccb_h,
1709 periph->path,
1710 CAM_PRIORITY_NORMAL);
1711 cgd->ccb_h.func_code = XPT_GDEV_TYPE;
1712 xpt_action((union ccb *)cgd);
1713
1714 if (cgd->ccb_h.status != CAM_REQ_CMP) {
1715 xpt_free_ccb((union ccb *)cgd);
1716 return -1;
1717 }
1718
1719 inq_data = &cgd->inq_data;
1720 dev_scsi_version = inq_data->version;
1721 xpt_free_ccb((union ccb *)cgd);
1722
1723 return dev_scsi_version;
1724 }
1725
1726 void
scsi_move_medium(struct ccb_scsiio * csio,uint32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),uint8_t tag_action,uint32_t tea,uint32_t src,uint32_t dst,int invert,uint8_t sense_len,uint32_t timeout)1727 scsi_move_medium(struct ccb_scsiio *csio, uint32_t retries,
1728 void (*cbfcnp)(struct cam_periph *, union ccb *),
1729 uint8_t tag_action, uint32_t tea, uint32_t src,
1730 uint32_t dst, int invert, uint8_t sense_len,
1731 uint32_t timeout)
1732 {
1733 struct scsi_move_medium *scsi_cmd;
1734
1735 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1736 bzero(scsi_cmd, sizeof(*scsi_cmd));
1737
1738 scsi_cmd->opcode = MOVE_MEDIUM;
1739
1740 scsi_ulto2b(tea, scsi_cmd->tea);
1741 scsi_ulto2b(src, scsi_cmd->src);
1742 scsi_ulto2b(dst, scsi_cmd->dst);
1743
1744 if (invert)
1745 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1746
1747 cam_fill_csio(csio,
1748 retries,
1749 cbfcnp,
1750 /*flags*/ CAM_DIR_NONE,
1751 tag_action,
1752 /*data_ptr*/ NULL,
1753 /*dxfer_len*/ 0,
1754 sense_len,
1755 sizeof(*scsi_cmd),
1756 timeout);
1757 }
1758
1759 void
scsi_exchange_medium(struct ccb_scsiio * csio,uint32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),uint8_t tag_action,uint32_t tea,uint32_t src,uint32_t dst1,uint32_t dst2,int invert1,int invert2,uint8_t sense_len,uint32_t timeout)1760 scsi_exchange_medium(struct ccb_scsiio *csio, uint32_t retries,
1761 void (*cbfcnp)(struct cam_periph *, union ccb *),
1762 uint8_t tag_action, uint32_t tea, uint32_t src,
1763 uint32_t dst1, uint32_t dst2, int invert1,
1764 int invert2, uint8_t sense_len, uint32_t timeout)
1765 {
1766 struct scsi_exchange_medium *scsi_cmd;
1767
1768 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1769 bzero(scsi_cmd, sizeof(*scsi_cmd));
1770
1771 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1772
1773 scsi_ulto2b(tea, scsi_cmd->tea);
1774 scsi_ulto2b(src, scsi_cmd->src);
1775 scsi_ulto2b(dst1, scsi_cmd->fdst);
1776 scsi_ulto2b(dst2, scsi_cmd->sdst);
1777
1778 if (invert1)
1779 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1780
1781 if (invert2)
1782 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1783
1784 cam_fill_csio(csio,
1785 retries,
1786 cbfcnp,
1787 /*flags*/ CAM_DIR_NONE,
1788 tag_action,
1789 /*data_ptr*/ NULL,
1790 /*dxfer_len*/ 0,
1791 sense_len,
1792 sizeof(*scsi_cmd),
1793 timeout);
1794 }
1795
1796 void
scsi_position_to_element(struct ccb_scsiio * csio,uint32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),uint8_t tag_action,uint32_t tea,uint32_t dst,int invert,uint8_t sense_len,uint32_t timeout)1797 scsi_position_to_element(struct ccb_scsiio *csio, uint32_t retries,
1798 void (*cbfcnp)(struct cam_periph *, union ccb *),
1799 uint8_t tag_action, uint32_t tea, uint32_t dst,
1800 int invert, uint8_t sense_len, uint32_t timeout)
1801 {
1802 struct scsi_position_to_element *scsi_cmd;
1803
1804 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1805 bzero(scsi_cmd, sizeof(*scsi_cmd));
1806
1807 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1808
1809 scsi_ulto2b(tea, scsi_cmd->tea);
1810 scsi_ulto2b(dst, scsi_cmd->dst);
1811
1812 if (invert)
1813 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1814
1815 cam_fill_csio(csio,
1816 retries,
1817 cbfcnp,
1818 /*flags*/ CAM_DIR_NONE,
1819 tag_action,
1820 /*data_ptr*/ NULL,
1821 /*dxfer_len*/ 0,
1822 sense_len,
1823 sizeof(*scsi_cmd),
1824 timeout);
1825 }
1826
1827 void
scsi_read_element_status(struct ccb_scsiio * csio,uint32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),uint8_t tag_action,int voltag,uint32_t sea,int curdata,int dvcid,uint32_t count,uint8_t * data_ptr,uint32_t dxfer_len,uint8_t sense_len,uint32_t timeout)1828 scsi_read_element_status(struct ccb_scsiio *csio, uint32_t retries,
1829 void (*cbfcnp)(struct cam_periph *, union ccb *),
1830 uint8_t tag_action, int voltag, uint32_t sea,
1831 int curdata, int dvcid,
1832 uint32_t count, uint8_t *data_ptr,
1833 uint32_t dxfer_len, uint8_t sense_len,
1834 uint32_t timeout)
1835 {
1836 struct scsi_read_element_status *scsi_cmd;
1837
1838 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1839 bzero(scsi_cmd, sizeof(*scsi_cmd));
1840
1841 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1842
1843 scsi_ulto2b(sea, scsi_cmd->sea);
1844 scsi_ulto2b(count, scsi_cmd->count);
1845 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1846 if (dvcid)
1847 scsi_cmd->flags |= READ_ELEMENT_STATUS_DVCID;
1848 if (curdata)
1849 scsi_cmd->flags |= READ_ELEMENT_STATUS_CURDATA;
1850
1851 if (voltag)
1852 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1853
1854 cam_fill_csio(csio,
1855 retries,
1856 cbfcnp,
1857 /*flags*/ CAM_DIR_IN,
1858 tag_action,
1859 data_ptr,
1860 dxfer_len,
1861 sense_len,
1862 sizeof(*scsi_cmd),
1863 timeout);
1864 }
1865
1866 void
scsi_initialize_element_status(struct ccb_scsiio * csio,uint32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),uint8_t tag_action,uint8_t sense_len,uint32_t timeout)1867 scsi_initialize_element_status(struct ccb_scsiio *csio, uint32_t retries,
1868 void (*cbfcnp)(struct cam_periph *, union ccb *),
1869 uint8_t tag_action, uint8_t sense_len,
1870 uint32_t timeout)
1871 {
1872 struct scsi_initialize_element_status *scsi_cmd;
1873
1874 scsi_cmd = (struct scsi_initialize_element_status *)
1875 &csio->cdb_io.cdb_bytes;
1876 bzero(scsi_cmd, sizeof(*scsi_cmd));
1877
1878 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1879
1880 cam_fill_csio(csio,
1881 retries,
1882 cbfcnp,
1883 /*flags*/ CAM_DIR_NONE,
1884 tag_action,
1885 /* data_ptr */ NULL,
1886 /* dxfer_len */ 0,
1887 sense_len,
1888 sizeof(*scsi_cmd),
1889 timeout);
1890 }
1891
1892 void
scsi_send_volume_tag(struct ccb_scsiio * csio,uint32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),uint8_t tag_action,uint16_t element_address,uint8_t send_action_code,struct scsi_send_volume_tag_parameters * parameters,uint8_t sense_len,uint32_t timeout)1893 scsi_send_volume_tag(struct ccb_scsiio *csio, uint32_t retries,
1894 void (*cbfcnp)(struct cam_periph *, union ccb *),
1895 uint8_t tag_action,
1896 uint16_t element_address,
1897 uint8_t send_action_code,
1898 struct scsi_send_volume_tag_parameters *parameters,
1899 uint8_t sense_len, uint32_t timeout)
1900 {
1901 struct scsi_send_volume_tag *scsi_cmd;
1902
1903 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1904 bzero(scsi_cmd, sizeof(*scsi_cmd));
1905
1906 scsi_cmd->opcode = SEND_VOLUME_TAG;
1907 scsi_ulto2b(element_address, scsi_cmd->ea);
1908 scsi_cmd->sac = send_action_code;
1909 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1910
1911 cam_fill_csio(csio,
1912 retries,
1913 cbfcnp,
1914 /*flags*/ CAM_DIR_OUT,
1915 tag_action,
1916 /* data_ptr */ (uint8_t *) parameters,
1917 sizeof(*parameters),
1918 sense_len,
1919 sizeof(*scsi_cmd),
1920 timeout);
1921 }
1922