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 <[email protected]>
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/cdefs.h>
69 #include <sys/param.h>
70 #include <sys/queue.h>
71 #include <sys/systm.h>
72 #include <sys/kernel.h>
73 #include <sys/types.h>
74 #include <sys/malloc.h>
75 #include <sys/fcntl.h>
76 #include <sys/conf.h>
77 #include <sys/chio.h>
78 #include <sys/errno.h>
79 #include <sys/devicestat.h>
80
81 #include <cam/cam.h>
82 #include <cam/cam_ccb.h>
83 #include <cam/cam_periph.h>
84 #include <cam/cam_xpt_periph.h>
85 #include <cam/cam_debug.h>
86
87 #include <cam/scsi/scsi_all.h>
88 #include <cam/scsi/scsi_message.h>
89 #include <cam/scsi/scsi_ch.h>
90
91 /*
92 * Timeout definitions for various changer related commands. They may
93 * be too short for some devices (especially the timeout for INITIALIZE
94 * ELEMENT STATUS).
95 */
96
97 static const uint32_t CH_TIMEOUT_MODE_SENSE = 6000;
98 static const uint32_t CH_TIMEOUT_MOVE_MEDIUM = 15 * 60 * 1000;
99 static const uint32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 15 * 60 * 1000;
100 static const uint32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 15 * 60 * 1000;
101 static const uint32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 5 * 60 * 1000;
102 static const uint32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
103 static const uint32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
104
105 typedef enum {
106 CH_FLAG_INVALID = 0x001
107 } ch_flags;
108
109 typedef enum {
110 CH_STATE_PROBE,
111 CH_STATE_NORMAL
112 } ch_state;
113
114 typedef enum {
115 CH_CCB_PROBE
116 } ch_ccb_types;
117
118 typedef enum {
119 CH_Q_NONE = 0x00,
120 CH_Q_NO_DBD = 0x01,
121 CH_Q_NO_DVCID = 0x02
122 } ch_quirks;
123
124 #define CH_Q_BIT_STRING \
125 "\020" \
126 "\001NO_DBD" \
127 "\002NO_DVCID"
128
129 #define ccb_state ppriv_field0
130 #define ccb_bp ppriv_ptr1
131
132 struct scsi_mode_sense_data {
133 struct scsi_mode_header_6 header;
134 struct scsi_mode_blk_desc blk_desc;
135 union {
136 struct page_element_address_assignment ea;
137 struct page_transport_geometry_parameters tg;
138 struct page_device_capabilities cap;
139 } pages;
140 };
141
142 struct ch_softc {
143 ch_flags flags;
144 ch_state state;
145 ch_quirks quirks;
146 struct devstat *device_stats;
147 struct cdev *dev;
148 int open_count;
149
150 int sc_picker; /* current picker */
151
152 /*
153 * The following information is obtained from the
154 * element address assignment page.
155 */
156 int sc_firsts[CHET_MAX + 1]; /* firsts */
157 int sc_counts[CHET_MAX + 1]; /* counts */
158
159 /*
160 * The following mask defines the legal combinations
161 * of elements for the MOVE MEDIUM command.
162 */
163 uint8_t sc_movemask[CHET_MAX + 1];
164
165 /*
166 * As above, but for EXCHANGE MEDIUM.
167 */
168 uint8_t sc_exchangemask[CHET_MAX + 1];
169
170 /*
171 * Quirks; see below. XXX KDM not implemented yet
172 */
173 int sc_settledelay; /* delay for settle */
174 };
175
176 static d_open_t chopen;
177 static d_close_t chclose;
178 static d_ioctl_t chioctl;
179 static periph_init_t chinit;
180 static periph_ctor_t chregister;
181 static periph_oninv_t choninvalidate;
182 static periph_dtor_t chcleanup;
183 static periph_start_t chstart;
184 static void chasync(void *callback_arg, uint32_t code,
185 struct cam_path *path, void *arg);
186 static void chdone(struct cam_periph *periph,
187 union ccb *done_ccb);
188 static int cherror(union ccb *ccb, uint32_t cam_flags,
189 uint32_t sense_flags);
190 static int chmove(struct cam_periph *periph,
191 struct changer_move *cm);
192 static int chexchange(struct cam_periph *periph,
193 struct changer_exchange *ce);
194 static int chposition(struct cam_periph *periph,
195 struct changer_position *cp);
196 static int chgetelemstatus(struct cam_periph *periph,
197 int scsi_version, u_long cmd,
198 struct changer_element_status_request *csr);
199 static int chsetvoltag(struct cam_periph *periph,
200 struct changer_set_voltag_request *csvr);
201 static int chielem(struct cam_periph *periph,
202 unsigned int timeout);
203 static int chgetparams(struct cam_periph *periph);
204 static int chscsiversion(struct cam_periph *periph);
205
206 static struct periph_driver chdriver =
207 {
208 chinit, "ch",
209 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
210 };
211
212 PERIPHDRIVER_DECLARE(ch, chdriver);
213
214 static struct cdevsw ch_cdevsw = {
215 .d_version = D_VERSION,
216 .d_flags = D_TRACKCLOSE,
217 .d_open = chopen,
218 .d_close = chclose,
219 .d_ioctl = chioctl,
220 .d_name = "ch",
221 };
222
223 static MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
224
225 static void
chinit(void)226 chinit(void)
227 {
228 cam_status status;
229
230 /*
231 * Install a global async callback. This callback will
232 * receive async callbacks like "new device found".
233 */
234 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
235
236 if (status != CAM_REQ_CMP) {
237 printf("ch: Failed to attach master async callback "
238 "due to status 0x%x!\n", status);
239 }
240 }
241
242 static void
chdevgonecb(void * arg)243 chdevgonecb(void *arg)
244 {
245 struct ch_softc *softc;
246 struct cam_periph *periph;
247 struct mtx *mtx;
248 int i;
249
250 periph = (struct cam_periph *)arg;
251 mtx = cam_periph_mtx(periph);
252 mtx_lock(mtx);
253
254 softc = (struct ch_softc *)periph->softc;
255 KASSERT(softc->open_count >= 0, ("Negative open count %d",
256 softc->open_count));
257
258 /*
259 * When we get this callback, we will get no more close calls from
260 * devfs. So if we have any dangling opens, we need to release the
261 * reference held for that particular context.
262 */
263 for (i = 0; i < softc->open_count; i++)
264 cam_periph_release_locked(periph);
265
266 softc->open_count = 0;
267
268 /*
269 * Release the reference held for the device node, it is gone now.
270 */
271 cam_periph_release_locked(periph);
272
273 /*
274 * We reference the lock directly here, instead of using
275 * cam_periph_unlock(). The reason is that the final call to
276 * cam_periph_release_locked() above could result in the periph
277 * getting freed. If that is the case, dereferencing the periph
278 * with a cam_periph_unlock() call would cause a page fault.
279 */
280 mtx_unlock(mtx);
281 }
282
283 static void
choninvalidate(struct cam_periph * periph)284 choninvalidate(struct cam_periph *periph)
285 {
286 struct ch_softc *softc;
287
288 softc = (struct ch_softc *)periph->softc;
289
290 /*
291 * De-register any async callbacks.
292 */
293 xpt_register_async(0, chasync, periph, periph->path);
294
295 softc->flags |= CH_FLAG_INVALID;
296
297 /*
298 * Tell devfs this device has gone away, and ask for a callback
299 * when it has cleaned up its state.
300 */
301 destroy_dev_sched_cb(softc->dev, chdevgonecb, periph);
302 }
303
304 static void
chcleanup(struct cam_periph * periph)305 chcleanup(struct cam_periph *periph)
306 {
307 struct ch_softc *softc;
308
309 softc = (struct ch_softc *)periph->softc;
310
311 devstat_remove_entry(softc->device_stats);
312
313 free(softc, M_DEVBUF);
314 }
315
316 static void
chasync(void * callback_arg,uint32_t code,struct cam_path * path,void * arg)317 chasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
318 {
319 struct cam_periph *periph;
320
321 periph = (struct cam_periph *)callback_arg;
322
323 switch(code) {
324 case AC_FOUND_DEVICE:
325 {
326 struct ccb_getdev *cgd;
327 cam_status status;
328
329 cgd = (struct ccb_getdev *)arg;
330 if (cgd == NULL)
331 break;
332
333 if (cgd->protocol != PROTO_SCSI)
334 break;
335 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
336 break;
337 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
338 break;
339
340 /*
341 * Allocate a peripheral instance for
342 * this device and start the probe
343 * process.
344 */
345 status = cam_periph_alloc(chregister, choninvalidate,
346 chcleanup, chstart, "ch",
347 CAM_PERIPH_BIO, path,
348 chasync, AC_FOUND_DEVICE, cgd);
349
350 if (status != CAM_REQ_CMP
351 && status != CAM_REQ_INPROG)
352 printf("chasync: Unable to probe new device "
353 "due to status 0x%x\n", status);
354
355 break;
356 }
357 default:
358 cam_periph_async(periph, code, path, arg);
359 break;
360 }
361 }
362
363 static cam_status
chregister(struct cam_periph * periph,void * arg)364 chregister(struct cam_periph *periph, void *arg)
365 {
366 struct ch_softc *softc;
367 struct ccb_getdev *cgd;
368 struct ccb_pathinq cpi;
369 struct make_dev_args args;
370 int error;
371
372 cgd = (struct ccb_getdev *)arg;
373 if (cgd == NULL) {
374 printf("chregister: no getdev CCB, can't register device\n");
375 return(CAM_REQ_CMP_ERR);
376 }
377
378 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
379
380 if (softc == NULL) {
381 printf("chregister: Unable to probe new device. "
382 "Unable to allocate softc\n");
383 return(CAM_REQ_CMP_ERR);
384 }
385
386 bzero(softc, sizeof(*softc));
387 softc->state = CH_STATE_PROBE;
388 periph->softc = softc;
389 softc->quirks = CH_Q_NONE;
390
391 /*
392 * The DVCID and CURDATA bits were not introduced until the SMC
393 * spec. If this device claims SCSI-2 or earlier support, then it
394 * very likely does not support these bits.
395 */
396 if (cgd->inq_data.version <= SCSI_REV_2)
397 softc->quirks |= CH_Q_NO_DVCID;
398
399 xpt_path_inq(&cpi, periph->path);
400
401 /*
402 * Changers don't have a blocksize, and obviously don't support
403 * tagged queueing.
404 */
405 cam_periph_unlock(periph);
406 softc->device_stats = devstat_new_entry("ch",
407 periph->unit_number, 0,
408 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
409 SID_TYPE(&cgd->inq_data) |
410 XPORT_DEVSTAT_TYPE(cpi.transport),
411 DEVSTAT_PRIORITY_OTHER);
412
413 /*
414 * Acquire a reference to the periph before we create the devfs
415 * instance for it. We'll release this reference once the devfs
416 * instance has been freed.
417 */
418 if (cam_periph_acquire(periph) != 0) {
419 xpt_print(periph->path, "%s: lost periph during "
420 "registration!\n", __func__);
421 cam_periph_lock(periph);
422 return (CAM_REQ_CMP_ERR);
423 }
424
425 /* Register the device */
426 make_dev_args_init(&args);
427 args.mda_devsw = &ch_cdevsw;
428 args.mda_unit = periph->unit_number;
429 args.mda_uid = UID_ROOT;
430 args.mda_gid = GID_OPERATOR;
431 args.mda_mode = 0600;
432 args.mda_si_drv1 = periph;
433 error = make_dev_s(&args, &softc->dev, "%s%d", periph->periph_name,
434 periph->unit_number);
435 cam_periph_lock(periph);
436 if (error != 0) {
437 cam_periph_release_locked(periph);
438 return (CAM_REQ_CMP_ERR);
439 }
440
441 /*
442 * Add an async callback so that we get
443 * notified if this device goes away.
444 */
445 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
446
447 /*
448 * Lock this periph until we are setup.
449 * This first call can't block
450 */
451 (void)cam_periph_hold(periph, PRIBIO);
452 xpt_schedule(periph, CAM_PRIORITY_DEV);
453
454 return(CAM_REQ_CMP);
455 }
456
457 static int
chopen(struct cdev * dev,int flags,int fmt,struct thread * td)458 chopen(struct cdev *dev, int flags, int fmt, struct thread *td)
459 {
460 struct cam_periph *periph;
461 struct ch_softc *softc;
462 int error;
463
464 periph = (struct cam_periph *)dev->si_drv1;
465 if (cam_periph_acquire(periph) != 0)
466 return (ENXIO);
467
468 softc = (struct ch_softc *)periph->softc;
469
470 cam_periph_lock(periph);
471
472 if (softc->flags & CH_FLAG_INVALID) {
473 cam_periph_release_locked(periph);
474 cam_periph_unlock(periph);
475 return(ENXIO);
476 }
477
478 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
479 cam_periph_unlock(periph);
480 cam_periph_release(periph);
481 return (error);
482 }
483
484 /*
485 * Load information about this changer device into the softc.
486 */
487 if ((error = chgetparams(periph)) != 0) {
488 cam_periph_unhold(periph);
489 cam_periph_release_locked(periph);
490 cam_periph_unlock(periph);
491 return(error);
492 }
493
494 cam_periph_unhold(periph);
495
496 softc->open_count++;
497
498 cam_periph_unlock(periph);
499
500 return(error);
501 }
502
503 static int
chclose(struct cdev * dev,int flag,int fmt,struct thread * td)504 chclose(struct cdev *dev, int flag, int fmt, struct thread *td)
505 {
506 struct cam_periph *periph;
507 struct ch_softc *softc;
508 struct mtx *mtx;
509
510 periph = (struct cam_periph *)dev->si_drv1;
511 mtx = cam_periph_mtx(periph);
512 mtx_lock(mtx);
513
514 softc = (struct ch_softc *)periph->softc;
515 softc->open_count--;
516
517 cam_periph_release_locked(periph);
518
519 /*
520 * We reference the lock directly here, instead of using
521 * cam_periph_unlock(). The reason is that the call to
522 * cam_periph_release_locked() above could result in the periph
523 * getting freed. If that is the case, dereferencing the periph
524 * with a cam_periph_unlock() call would cause a page fault.
525 *
526 * cam_periph_release() avoids this problem using the same method,
527 * but we're manually acquiring and dropping the lock here to
528 * protect the open count and avoid another lock acquisition and
529 * release.
530 */
531 mtx_unlock(mtx);
532
533 return(0);
534 }
535
536 static void
chstart(struct cam_periph * periph,union ccb * start_ccb)537 chstart(struct cam_periph *periph, union ccb *start_ccb)
538 {
539 struct ch_softc *softc;
540
541 softc = (struct ch_softc *)periph->softc;
542
543 switch (softc->state) {
544 case CH_STATE_NORMAL:
545 {
546 xpt_release_ccb(start_ccb);
547 break;
548 }
549 case CH_STATE_PROBE:
550 {
551 int mode_buffer_len;
552 void *mode_buffer;
553
554 /*
555 * Include the block descriptor when calculating the mode
556 * buffer length,
557 */
558 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
559 sizeof(struct scsi_mode_blk_desc) +
560 sizeof(struct page_element_address_assignment);
561
562 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
563
564 if (mode_buffer == NULL) {
565 printf("chstart: couldn't malloc mode sense data\n");
566 break;
567 }
568 bzero(mode_buffer, mode_buffer_len);
569
570 /*
571 * Get the element address assignment page.
572 */
573 scsi_mode_sense(&start_ccb->csio,
574 /* retries */ 1,
575 /* cbfcnp */ chdone,
576 /* tag_action */ MSG_SIMPLE_Q_TAG,
577 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
578 FALSE : TRUE,
579 /* pc */ SMS_PAGE_CTRL_CURRENT,
580 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
581 /* param_buf */ (uint8_t *)mode_buffer,
582 /* param_len */ mode_buffer_len,
583 /* sense_len */ SSD_FULL_SIZE,
584 /* timeout */ CH_TIMEOUT_MODE_SENSE);
585
586 start_ccb->ccb_h.ccb_bp = NULL;
587 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
588 xpt_action(start_ccb);
589 break;
590 }
591 }
592 }
593
594 static void
chdone(struct cam_periph * periph,union ccb * done_ccb)595 chdone(struct cam_periph *periph, union ccb *done_ccb)
596 {
597 struct ch_softc *softc;
598 struct ccb_scsiio *csio;
599
600 softc = (struct ch_softc *)periph->softc;
601 csio = &done_ccb->csio;
602
603 switch(done_ccb->ccb_h.ccb_state) {
604 case CH_CCB_PROBE:
605 {
606 struct scsi_mode_header_6 *mode_header;
607 struct page_element_address_assignment *ea;
608 char announce_buf[80];
609
610 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
611
612 ea = (struct page_element_address_assignment *)
613 find_mode_page_6(mode_header);
614
615 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
616
617 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
618 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
619 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
620 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
621 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
622 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
623 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
624 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
625 softc->sc_picker = softc->sc_firsts[CHET_MT];
626
627 #define PLURAL(c) (c) == 1 ? "" : "s"
628 snprintf(announce_buf, sizeof(announce_buf),
629 "%d slot%s, %d drive%s, "
630 "%d picker%s, %d portal%s",
631 softc->sc_counts[CHET_ST],
632 PLURAL(softc->sc_counts[CHET_ST]),
633 softc->sc_counts[CHET_DT],
634 PLURAL(softc->sc_counts[CHET_DT]),
635 softc->sc_counts[CHET_MT],
636 PLURAL(softc->sc_counts[CHET_MT]),
637 softc->sc_counts[CHET_IE],
638 PLURAL(softc->sc_counts[CHET_IE]));
639 #undef PLURAL
640 if (announce_buf[0] != '\0') {
641 xpt_announce_periph(periph, announce_buf);
642 xpt_announce_quirks(periph, softc->quirks,
643 CH_Q_BIT_STRING);
644 }
645 } else {
646 int error;
647
648 error = cherror(done_ccb, CAM_RETRY_SELTO,
649 SF_RETRY_UA | SF_NO_PRINT);
650 /*
651 * Retry any UNIT ATTENTION type errors. They
652 * are expected at boot.
653 */
654 if (error == ERESTART) {
655 /*
656 * A retry was scheduled, so
657 * just return.
658 */
659 return;
660 } else if (error != 0) {
661 struct scsi_mode_sense_6 *sms;
662 int frozen, retry_scheduled;
663
664 sms = (struct scsi_mode_sense_6 *)
665 done_ccb->csio.cdb_io.cdb_bytes;
666 frozen = (done_ccb->ccb_h.status &
667 CAM_DEV_QFRZN) != 0;
668
669 /*
670 * Check to see if block descriptors were
671 * disabled. Some devices don't like that.
672 * We're taking advantage of the fact that
673 * the first few bytes of the 6 and 10 byte
674 * mode sense commands are the same. If
675 * block descriptors were disabled, enable
676 * them and re-send the command.
677 */
678 if ((sms->byte2 & SMS_DBD) != 0 &&
679 (periph->flags & CAM_PERIPH_INVALID) == 0) {
680 sms->byte2 &= ~SMS_DBD;
681 xpt_action(done_ccb);
682 softc->quirks |= CH_Q_NO_DBD;
683 retry_scheduled = 1;
684 } else
685 retry_scheduled = 0;
686
687 /* Don't wedge this device's queue */
688 if (frozen)
689 cam_release_devq(done_ccb->ccb_h.path,
690 /*relsim_flags*/0,
691 /*reduction*/0,
692 /*timeout*/0,
693 /*getcount_only*/0);
694
695 if (retry_scheduled)
696 return;
697
698 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
699 == CAM_SCSI_STATUS_ERROR)
700 scsi_sense_print(&done_ccb->csio);
701 else {
702 xpt_print(periph->path,
703 "got CAM status %#x\n",
704 done_ccb->ccb_h.status);
705 }
706 xpt_print(periph->path, "fatal error, failed "
707 "to attach to device\n");
708
709 cam_periph_invalidate(periph);
710 }
711 }
712 softc->state = CH_STATE_NORMAL;
713 free(mode_header, M_SCSICH);
714 /*
715 * Since our peripheral may be invalidated by an error
716 * above or an external event, we must release our CCB
717 * before releasing the probe lock on the peripheral.
718 * The peripheral will only go away once the last lock
719 * is removed, and we need it around for the CCB release
720 * operation.
721 */
722 xpt_release_ccb(done_ccb);
723 cam_periph_unhold(periph);
724 return;
725 }
726 default:
727 break;
728 }
729 xpt_release_ccb(done_ccb);
730 }
731
732 static int
cherror(union ccb * ccb,uint32_t cam_flags,uint32_t sense_flags)733 cherror(union ccb *ccb, uint32_t cam_flags, uint32_t sense_flags)
734 {
735
736 return (cam_periph_error(ccb, cam_flags, sense_flags));
737 }
738
739 static int
chioctl(struct cdev * dev,u_long cmd,caddr_t addr,int flag,struct thread * td)740 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
741 {
742 struct cam_periph *periph;
743 struct ch_softc *softc;
744 int error;
745
746 periph = (struct cam_periph *)dev->si_drv1;
747 cam_periph_lock(periph);
748 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
749
750 softc = (struct ch_softc *)periph->softc;
751
752 error = 0;
753
754 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
755 ("trying to do ioctl %#lx\n", cmd));
756
757 /*
758 * If this command can change the device's state, we must
759 * have the device open for writing.
760 */
761 switch (cmd) {
762 case CHIOGPICKER:
763 case CHIOGPARAMS:
764 case OCHIOGSTATUS:
765 case CHIOGSTATUS:
766 break;
767
768 default:
769 if ((flag & FWRITE) == 0) {
770 cam_periph_unlock(periph);
771 return (EBADF);
772 }
773 }
774
775 switch (cmd) {
776 case CHIOMOVE:
777 error = chmove(periph, (struct changer_move *)addr);
778 break;
779
780 case CHIOEXCHANGE:
781 error = chexchange(periph, (struct changer_exchange *)addr);
782 break;
783
784 case CHIOPOSITION:
785 error = chposition(periph, (struct changer_position *)addr);
786 break;
787
788 case CHIOGPICKER:
789 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
790 break;
791
792 case CHIOSPICKER:
793 {
794 int new_picker = *(int *)addr;
795
796 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
797 error = EINVAL;
798 break;
799 }
800 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
801 break;
802 }
803 case CHIOGPARAMS:
804 {
805 struct changer_params *cp = (struct changer_params *)addr;
806
807 cp->cp_npickers = softc->sc_counts[CHET_MT];
808 cp->cp_nslots = softc->sc_counts[CHET_ST];
809 cp->cp_nportals = softc->sc_counts[CHET_IE];
810 cp->cp_ndrives = softc->sc_counts[CHET_DT];
811 break;
812 }
813 case CHIOIELEM:
814 error = chielem(periph, *(unsigned int *)addr);
815 break;
816
817 case OCHIOGSTATUS:
818 {
819 error = chgetelemstatus(periph, SCSI_REV_2, cmd,
820 (struct changer_element_status_request *)addr);
821 break;
822 }
823
824 case CHIOGSTATUS:
825 {
826 int scsi_version;
827
828 scsi_version = chscsiversion(periph);
829 if (scsi_version >= SCSI_REV_0) {
830 error = chgetelemstatus(periph, scsi_version, cmd,
831 (struct changer_element_status_request *)addr);
832 }
833 else { /* unable to determine the SCSI version */
834 cam_periph_unlock(periph);
835 return (ENXIO);
836 }
837 break;
838 }
839
840 case CHIOSETVOLTAG:
841 {
842 error = chsetvoltag(periph,
843 (struct changer_set_voltag_request *) addr);
844 break;
845 }
846
847 /* Implement prevent/allow? */
848
849 default:
850 error = cam_periph_ioctl(periph, cmd, addr, cherror);
851 break;
852 }
853
854 cam_periph_unlock(periph);
855 return (error);
856 }
857
858 static int
chmove(struct cam_periph * periph,struct changer_move * cm)859 chmove(struct cam_periph *periph, struct changer_move *cm)
860 {
861 struct ch_softc *softc;
862 uint16_t fromelem, toelem;
863 union ccb *ccb;
864 int error;
865
866 error = 0;
867 softc = (struct ch_softc *)periph->softc;
868
869 /*
870 * Check arguments.
871 */
872 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
873 return (EINVAL);
874 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
875 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
876 return (ENODEV);
877
878 /*
879 * Check the request against the changer's capabilities.
880 */
881 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
882 return (ENODEV);
883
884 /*
885 * Calculate the source and destination elements.
886 */
887 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
888 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
889
890 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
891
892 scsi_move_medium(&ccb->csio,
893 /* retries */ 1,
894 /* cbfcnp */ chdone,
895 /* tag_action */ MSG_SIMPLE_Q_TAG,
896 /* tea */ softc->sc_picker,
897 /* src */ fromelem,
898 /* dst */ toelem,
899 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
900 /* sense_len */ SSD_FULL_SIZE,
901 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
902
903 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
904 /*sense_flags*/ SF_RETRY_UA,
905 softc->device_stats);
906
907 xpt_release_ccb(ccb);
908
909 return(error);
910 }
911
912 static int
chexchange(struct cam_periph * periph,struct changer_exchange * ce)913 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
914 {
915 struct ch_softc *softc;
916 uint16_t src, dst1, dst2;
917 union ccb *ccb;
918 int error;
919
920 error = 0;
921 softc = (struct ch_softc *)periph->softc;
922 /*
923 * Check arguments.
924 */
925 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
926 (ce->ce_sdsttype > CHET_DT))
927 return (EINVAL);
928 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
929 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
930 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
931 return (ENODEV);
932
933 /*
934 * Check the request against the changer's capabilities.
935 */
936 if (((softc->sc_exchangemask[ce->ce_srctype] &
937 (1 << ce->ce_fdsttype)) == 0) ||
938 ((softc->sc_exchangemask[ce->ce_fdsttype] &
939 (1 << ce->ce_sdsttype)) == 0))
940 return (ENODEV);
941
942 /*
943 * Calculate the source and destination elements.
944 */
945 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
946 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
947 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
948
949 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
950
951 scsi_exchange_medium(&ccb->csio,
952 /* retries */ 1,
953 /* cbfcnp */ chdone,
954 /* tag_action */ MSG_SIMPLE_Q_TAG,
955 /* tea */ softc->sc_picker,
956 /* src */ src,
957 /* dst1 */ dst1,
958 /* dst2 */ dst2,
959 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
960 TRUE : FALSE,
961 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
962 TRUE : FALSE,
963 /* sense_len */ SSD_FULL_SIZE,
964 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
965
966 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
967 /*sense_flags*/ SF_RETRY_UA,
968 softc->device_stats);
969
970 xpt_release_ccb(ccb);
971
972 return(error);
973 }
974
975 static int
chposition(struct cam_periph * periph,struct changer_position * cp)976 chposition(struct cam_periph *periph, struct changer_position *cp)
977 {
978 struct ch_softc *softc;
979 uint16_t dst;
980 union ccb *ccb;
981 int error;
982
983 error = 0;
984 softc = (struct ch_softc *)periph->softc;
985
986 /*
987 * Check arguments.
988 */
989 if (cp->cp_type > CHET_DT)
990 return (EINVAL);
991 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
992 return (ENODEV);
993
994 /*
995 * Calculate the destination element.
996 */
997 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
998
999 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1000
1001 scsi_position_to_element(&ccb->csio,
1002 /* retries */ 1,
1003 /* cbfcnp */ chdone,
1004 /* tag_action */ MSG_SIMPLE_Q_TAG,
1005 /* tea */ softc->sc_picker,
1006 /* dst */ dst,
1007 /* invert */ (cp->cp_flags & CP_INVERT) ?
1008 TRUE : FALSE,
1009 /* sense_len */ SSD_FULL_SIZE,
1010 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
1011
1012 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1013 /*sense_flags*/ SF_RETRY_UA,
1014 softc->device_stats);
1015
1016 xpt_release_ccb(ccb);
1017
1018 return(error);
1019 }
1020
1021 /*
1022 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
1023 * to host native byte order in the volume serial number. The volume
1024 * label as returned by the changer is transferred to user mode as
1025 * nul-terminated string. Volume labels are truncated at the first
1026 * space, as suggested by SCSI-2.
1027 */
1028 static void
copy_voltag(struct changer_voltag * uvoltag,struct volume_tag * voltag)1029 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
1030 {
1031 int i;
1032 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
1033 char c = voltag->vif[i];
1034 if (c && c != ' ')
1035 uvoltag->cv_volid[i] = c;
1036 else
1037 break;
1038 }
1039 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
1040 }
1041
1042 /*
1043 * Copy an element status descriptor to a user-mode
1044 * changer_element_status structure.
1045 */
1046 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)1047 copy_element_status(struct ch_softc *softc,
1048 uint16_t flags,
1049 struct read_element_status_descriptor *desc,
1050 struct changer_element_status *ces,
1051 int scsi_version)
1052 {
1053 uint16_t eaddr = scsi_2btoul(desc->eaddr);
1054 uint16_t et;
1055 struct volume_tag *pvol_tag = NULL, *avol_tag = NULL;
1056 struct read_element_status_device_id *devid = NULL;
1057
1058 ces->ces_int_addr = eaddr;
1059 /* set up logical address in element status */
1060 for (et = CHET_MT; et <= CHET_DT; et++) {
1061 if ((softc->sc_firsts[et] <= eaddr)
1062 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1063 > eaddr)) {
1064 ces->ces_addr = eaddr - softc->sc_firsts[et];
1065 ces->ces_type = et;
1066 break;
1067 }
1068 }
1069
1070 ces->ces_flags = desc->flags1;
1071
1072 ces->ces_sensecode = desc->sense_code;
1073 ces->ces_sensequal = desc->sense_qual;
1074
1075 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
1076 ces->ces_flags |= CES_INVERT;
1077
1078 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1079 eaddr = scsi_2btoul(desc->ssea);
1080
1081 /* convert source address to logical format */
1082 for (et = CHET_MT; et <= CHET_DT; et++) {
1083 if ((softc->sc_firsts[et] <= eaddr)
1084 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1085 > eaddr)) {
1086 ces->ces_source_addr =
1087 eaddr - softc->sc_firsts[et];
1088 ces->ces_source_type = et;
1089 ces->ces_flags |= CES_SOURCE_VALID;
1090 break;
1091 }
1092 }
1093
1094 if (!(ces->ces_flags & CES_SOURCE_VALID))
1095 printf("ch: warning: could not map element source "
1096 "address %ud to a valid element type\n",
1097 eaddr);
1098 }
1099
1100 /*
1101 * pvoltag and avoltag are common between SCSI-2 and later versions
1102 */
1103 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1104 pvol_tag = &desc->voltag_devid.pvoltag;
1105 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1106 avol_tag = (flags & READ_ELEMENT_STATUS_PVOLTAG) ?
1107 &desc->voltag_devid.voltag[1] :&desc->voltag_devid.pvoltag;
1108 /*
1109 * For SCSI-3 and later, element status can carry designator and
1110 * other information.
1111 */
1112 if (scsi_version >= SCSI_REV_SPC) {
1113 if ((flags & READ_ELEMENT_STATUS_PVOLTAG) ^
1114 (flags & READ_ELEMENT_STATUS_AVOLTAG))
1115 devid = &desc->voltag_devid.pvol_and_devid.devid;
1116 else if (!(flags & READ_ELEMENT_STATUS_PVOLTAG) &&
1117 !(flags & READ_ELEMENT_STATUS_AVOLTAG))
1118 devid = &desc->voltag_devid.devid;
1119 else /* Have both PVOLTAG and AVOLTAG */
1120 devid = &desc->voltag_devid.vol_tags_and_devid.devid;
1121 }
1122
1123 if (pvol_tag)
1124 copy_voltag(&(ces->ces_pvoltag), pvol_tag);
1125 if (avol_tag)
1126 copy_voltag(&(ces->ces_pvoltag), avol_tag);
1127 if (devid != NULL) {
1128 if (devid->designator_length > 0) {
1129 bcopy((void *)devid->designator,
1130 (void *)ces->ces_designator,
1131 devid->designator_length);
1132 ces->ces_designator_length = devid->designator_length;
1133 /*
1134 * Make sure we are always NUL terminated. The
1135 * This won't matter for the binary code set,
1136 * since the user will only pay attention to the
1137 * length field.
1138 */
1139 ces->ces_designator[devid->designator_length]= '\0';
1140 }
1141 if (devid->piv_assoc_designator_type &
1142 READ_ELEMENT_STATUS_PIV_SET) {
1143 ces->ces_flags |= CES_PIV;
1144 ces->ces_protocol_id =
1145 READ_ELEMENT_STATUS_PROTOCOL_ID(
1146 devid->prot_code_set);
1147 }
1148 ces->ces_code_set =
1149 READ_ELEMENT_STATUS_CODE_SET(devid->prot_code_set);
1150 ces->ces_assoc = READ_ELEMENT_STATUS_ASSOCIATION(
1151 devid->piv_assoc_designator_type);
1152 ces->ces_designator_type = READ_ELEMENT_STATUS_DESIGNATOR_TYPE(
1153 devid->piv_assoc_designator_type);
1154 } else if (scsi_version > SCSI_REV_2) {
1155 /* SCSI-SPC and No devid, no designator */
1156 ces->ces_designator_length = 0;
1157 ces->ces_designator[0] = '\0';
1158 ces->ces_protocol_id = CES_PROTOCOL_ID_FCP_4;
1159 }
1160
1161 if (scsi_version <= SCSI_REV_2) {
1162 if (desc->dt_or_obsolete.scsi_2.dt_scsi_flags &
1163 READ_ELEMENT_STATUS_DT_IDVALID) {
1164 ces->ces_flags |= CES_SCSIID_VALID;
1165 ces->ces_scsi_id =
1166 desc->dt_or_obsolete.scsi_2.dt_scsi_addr;
1167 }
1168
1169 if (desc->dt_or_obsolete.scsi_2.dt_scsi_addr &
1170 READ_ELEMENT_STATUS_DT_LUVALID) {
1171 ces->ces_flags |= CES_LUN_VALID;
1172 ces->ces_scsi_lun =
1173 desc->dt_or_obsolete.scsi_2.dt_scsi_flags &
1174 READ_ELEMENT_STATUS_DT_LUNMASK;
1175 }
1176 }
1177 }
1178
1179 static int
chgetelemstatus(struct cam_periph * periph,int scsi_version,u_long cmd,struct changer_element_status_request * cesr)1180 chgetelemstatus(struct cam_periph *periph, int scsi_version, u_long cmd,
1181 struct changer_element_status_request *cesr)
1182 {
1183 struct read_element_status_header *st_hdr;
1184 struct read_element_status_page_header *pg_hdr;
1185 struct read_element_status_descriptor *desc;
1186 caddr_t data = NULL;
1187 size_t size, desclen;
1188 u_int avail, i;
1189 int curdata, dvcid, sense_flags;
1190 int try_no_dvcid = 0;
1191 struct changer_element_status *user_data = NULL;
1192 struct ch_softc *softc;
1193 union ccb *ccb;
1194 int chet = cesr->cesr_element_type;
1195 int error = 0;
1196 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1197
1198 softc = (struct ch_softc *)periph->softc;
1199
1200 /* perform argument checking */
1201
1202 /*
1203 * Perform a range check on the cesr_element_{base,count}
1204 * request argument fields.
1205 */
1206 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1207 || (cesr->cesr_element_base + cesr->cesr_element_count)
1208 > softc->sc_counts[chet])
1209 return (EINVAL);
1210
1211 /*
1212 * Request one descriptor for the given element type. This
1213 * is used to determine the size of the descriptor so that
1214 * we can allocate enough storage for all of them. We assume
1215 * that the first one can fit into 1k.
1216 */
1217 cam_periph_unlock(periph);
1218 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK);
1219
1220 cam_periph_lock(periph);
1221 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1222
1223 sense_flags = SF_RETRY_UA;
1224 if (softc->quirks & CH_Q_NO_DVCID) {
1225 dvcid = 0;
1226 curdata = 0;
1227 } else {
1228 dvcid = 1;
1229 curdata = 1;
1230 /*
1231 * Don't print anything for an Illegal Request, because
1232 * these flags can cause some changers to complain. We'll
1233 * retry without them if we get an error.
1234 */
1235 sense_flags |= SF_QUIET_IR;
1236 }
1237
1238 retry_einval:
1239
1240 scsi_read_element_status(&ccb->csio,
1241 /* retries */ 1,
1242 /* cbfcnp */ chdone,
1243 /* tag_action */ MSG_SIMPLE_Q_TAG,
1244 /* voltag */ want_voltags,
1245 /* sea */ softc->sc_firsts[chet],
1246 /* curdata */ curdata,
1247 /* dvcid */ dvcid,
1248 /* count */ 1,
1249 /* data_ptr */ data,
1250 /* dxfer_len */ 1024,
1251 /* sense_len */ SSD_FULL_SIZE,
1252 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1253
1254 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1255 /*sense_flags*/ sense_flags,
1256 softc->device_stats);
1257
1258 /*
1259 * An Illegal Request sense key (only used if there is no asc/ascq)
1260 * or 0x24,0x00 for an ASC/ASCQ both map to EINVAL. If dvcid or
1261 * curdata are set (we set both or neither), try turning them off
1262 * and see if the command is successful.
1263 */
1264 if ((error == EINVAL)
1265 && (dvcid || curdata)) {
1266 dvcid = 0;
1267 curdata = 0;
1268 error = 0;
1269 /* At this point we want to report any Illegal Request */
1270 sense_flags &= ~SF_QUIET_IR;
1271 try_no_dvcid = 1;
1272 goto retry_einval;
1273 }
1274
1275 /*
1276 * In this case, we tried a read element status with dvcid and
1277 * curdata set, and it failed. We retried without those bits, and
1278 * it succeeded. Suggest to the user that he set a quirk, so we
1279 * don't go through the retry process the first time in the future.
1280 * This should only happen on changers that claim SCSI-3 or higher,
1281 * but don't support these bits.
1282 */
1283 if ((try_no_dvcid != 0)
1284 && (error == 0))
1285 softc->quirks |= CH_Q_NO_DVCID;
1286
1287 if (error)
1288 goto done;
1289 cam_periph_unlock(periph);
1290
1291 st_hdr = (struct read_element_status_header *)data;
1292 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1293 sizeof(struct read_element_status_header));
1294 desclen = scsi_2btoul(pg_hdr->edl);
1295
1296 size = sizeof(struct read_element_status_header) +
1297 sizeof(struct read_element_status_page_header) +
1298 (desclen * cesr->cesr_element_count);
1299 /*
1300 * Reallocate storage for descriptors and get them from the
1301 * device.
1302 */
1303 free(data, M_DEVBUF);
1304 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK);
1305
1306 cam_periph_lock(periph);
1307 scsi_read_element_status(&ccb->csio,
1308 /* retries */ 1,
1309 /* cbfcnp */ chdone,
1310 /* tag_action */ MSG_SIMPLE_Q_TAG,
1311 /* voltag */ want_voltags,
1312 /* sea */ softc->sc_firsts[chet]
1313 + cesr->cesr_element_base,
1314 /* curdata */ curdata,
1315 /* dvcid */ dvcid,
1316 /* count */ cesr->cesr_element_count,
1317 /* data_ptr */ data,
1318 /* dxfer_len */ size,
1319 /* sense_len */ SSD_FULL_SIZE,
1320 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1321
1322 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1323 /*sense_flags*/ SF_RETRY_UA,
1324 softc->device_stats);
1325
1326 if (error)
1327 goto done;
1328 cam_periph_unlock(periph);
1329
1330 /*
1331 * Fill in the user status array.
1332 */
1333 st_hdr = (struct read_element_status_header *)data;
1334 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1335 sizeof(struct read_element_status_header));
1336 avail = scsi_2btoul(st_hdr->count);
1337
1338 if (avail != cesr->cesr_element_count) {
1339 xpt_print(periph->path,
1340 "warning, READ ELEMENT STATUS avail != count\n");
1341 }
1342
1343 user_data = (struct changer_element_status *)
1344 malloc(avail * sizeof(struct changer_element_status),
1345 M_DEVBUF, M_WAITOK | M_ZERO);
1346
1347 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1348 sizeof(struct read_element_status_header) +
1349 sizeof(struct read_element_status_page_header));
1350 /*
1351 * Set up the individual element status structures
1352 */
1353 for (i = 0; i < avail; ++i) {
1354 struct changer_element_status *ces;
1355
1356 /*
1357 * In the changer_element_status structure, fields from
1358 * the beginning to the field of ces_scsi_lun are common
1359 * between SCSI-2 and SCSI-3, while all the rest are new
1360 * from SCSI-3. In order to maintain backward compatibility
1361 * of the chio command, the ces pointer, below, is computed
1362 * such that it lines up with the structure boundary
1363 * corresponding to the SCSI version.
1364 */
1365 ces = cmd == OCHIOGSTATUS ?
1366 (struct changer_element_status *)
1367 ((unsigned char *)user_data + i *
1368 (offsetof(struct changer_element_status,ces_scsi_lun)+1)):
1369 &user_data[i];
1370
1371 copy_element_status(softc, pg_hdr->flags, desc,
1372 ces, scsi_version);
1373
1374 desc = (struct read_element_status_descriptor *)
1375 ((unsigned char *)desc + desclen);
1376 }
1377
1378 /* Copy element status structures out to userspace. */
1379 if (cmd == OCHIOGSTATUS)
1380 error = copyout(user_data,
1381 cesr->cesr_element_status,
1382 avail* (offsetof(struct changer_element_status,
1383 ces_scsi_lun) + 1));
1384 else
1385 error = copyout(user_data,
1386 cesr->cesr_element_status,
1387 avail * sizeof(struct changer_element_status));
1388
1389 cam_periph_lock(periph);
1390
1391 done:
1392 xpt_release_ccb(ccb);
1393
1394 if (data != NULL)
1395 free(data, M_DEVBUF);
1396 if (user_data != NULL)
1397 free(user_data, M_DEVBUF);
1398
1399 return (error);
1400 }
1401
1402 static int
chielem(struct cam_periph * periph,unsigned int timeout)1403 chielem(struct cam_periph *periph,
1404 unsigned int timeout)
1405 {
1406 union ccb *ccb;
1407 struct ch_softc *softc;
1408 int error;
1409
1410 if (!timeout) {
1411 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1412 } else {
1413 timeout *= 1000;
1414 }
1415
1416 error = 0;
1417 softc = (struct ch_softc *)periph->softc;
1418
1419 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1420
1421 scsi_initialize_element_status(&ccb->csio,
1422 /* retries */ 1,
1423 /* cbfcnp */ chdone,
1424 /* tag_action */ MSG_SIMPLE_Q_TAG,
1425 /* sense_len */ SSD_FULL_SIZE,
1426 /* timeout */ timeout);
1427
1428 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1429 /*sense_flags*/ SF_RETRY_UA,
1430 softc->device_stats);
1431
1432 xpt_release_ccb(ccb);
1433
1434 return(error);
1435 }
1436
1437 static int
chsetvoltag(struct cam_periph * periph,struct changer_set_voltag_request * csvr)1438 chsetvoltag(struct cam_periph *periph,
1439 struct changer_set_voltag_request *csvr)
1440 {
1441 union ccb *ccb;
1442 struct ch_softc *softc;
1443 uint16_t ea;
1444 uint8_t sac;
1445 struct scsi_send_volume_tag_parameters ssvtp;
1446 int error;
1447 int i;
1448
1449 error = 0;
1450 softc = (struct ch_softc *)periph->softc;
1451
1452 bzero(&ssvtp, sizeof(ssvtp));
1453 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1454 ssvtp.vitf[i] = ' ';
1455 }
1456
1457 /*
1458 * Check arguments.
1459 */
1460 if (csvr->csvr_type > CHET_DT)
1461 return EINVAL;
1462 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1463 return ENODEV;
1464
1465 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1466
1467 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1468 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1469 case CSVR_MODE_SET:
1470 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1471 break;
1472 case CSVR_MODE_REPLACE:
1473 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1474 break;
1475 case CSVR_MODE_CLEAR:
1476 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1477 break;
1478 default:
1479 error = EINVAL;
1480 goto out;
1481 }
1482 } else {
1483 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1484 case CSVR_MODE_SET:
1485 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1486 break;
1487 case CSVR_MODE_REPLACE:
1488 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1489 break;
1490 case CSVR_MODE_CLEAR:
1491 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1492 break;
1493 default:
1494 error = EINVAL;
1495 goto out;
1496 }
1497 }
1498
1499 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1500 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1501 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1502
1503 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1504
1505 scsi_send_volume_tag(&ccb->csio,
1506 /* retries */ 1,
1507 /* cbfcnp */ chdone,
1508 /* tag_action */ MSG_SIMPLE_Q_TAG,
1509 /* element_address */ ea,
1510 /* send_action_code */ sac,
1511 /* parameters */ &ssvtp,
1512 /* sense_len */ SSD_FULL_SIZE,
1513 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1514
1515 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1516 /*sense_flags*/ SF_RETRY_UA,
1517 softc->device_stats);
1518
1519 xpt_release_ccb(ccb);
1520
1521 out:
1522 return error;
1523 }
1524
1525 static int
chgetparams(struct cam_periph * periph)1526 chgetparams(struct cam_periph *periph)
1527 {
1528 union ccb *ccb;
1529 struct ch_softc *softc;
1530 void *mode_buffer;
1531 int mode_buffer_len;
1532 struct page_element_address_assignment *ea;
1533 struct page_device_capabilities *cap;
1534 int error, from, dbd;
1535 uint8_t *moves, *exchanges;
1536
1537 error = 0;
1538
1539 softc = (struct ch_softc *)periph->softc;
1540
1541 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1542
1543 /*
1544 * The scsi_mode_sense_data structure is just a convenience
1545 * structure that allows us to easily calculate the worst-case
1546 * storage size of the mode sense buffer.
1547 */
1548 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1549
1550 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
1551
1552 if (mode_buffer == NULL) {
1553 printf("chgetparams: couldn't malloc mode sense data\n");
1554 xpt_release_ccb(ccb);
1555 return(ENOSPC);
1556 }
1557
1558 bzero(mode_buffer, mode_buffer_len);
1559
1560 if (softc->quirks & CH_Q_NO_DBD)
1561 dbd = FALSE;
1562 else
1563 dbd = TRUE;
1564
1565 /*
1566 * Get the element address assignment page.
1567 */
1568 scsi_mode_sense(&ccb->csio,
1569 /* retries */ 1,
1570 /* cbfcnp */ chdone,
1571 /* tag_action */ MSG_SIMPLE_Q_TAG,
1572 /* dbd */ dbd,
1573 /* pc */ SMS_PAGE_CTRL_CURRENT,
1574 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1575 /* param_buf */ (uint8_t *)mode_buffer,
1576 /* param_len */ mode_buffer_len,
1577 /* sense_len */ SSD_FULL_SIZE,
1578 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1579
1580 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1581 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1582 softc->device_stats);
1583
1584 if (error) {
1585 if (dbd) {
1586 struct scsi_mode_sense_6 *sms;
1587
1588 sms = (struct scsi_mode_sense_6 *)
1589 ccb->csio.cdb_io.cdb_bytes;
1590
1591 sms->byte2 &= ~SMS_DBD;
1592 error = cam_periph_runccb(ccb, cherror,
1593 /*cam_flags*/ CAM_RETRY_SELTO,
1594 /*sense_flags*/ SF_RETRY_UA,
1595 softc->device_stats);
1596 } else {
1597 /*
1598 * Since we disabled sense printing above, print
1599 * out the sense here since we got an error.
1600 */
1601 scsi_sense_print(&ccb->csio);
1602 }
1603
1604 if (error) {
1605 xpt_print(periph->path,
1606 "chgetparams: error getting element "
1607 "address page\n");
1608 xpt_release_ccb(ccb);
1609 free(mode_buffer, M_SCSICH);
1610 return(error);
1611 }
1612 }
1613
1614 ea = (struct page_element_address_assignment *)
1615 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1616
1617 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1618 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1619 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1620 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1621 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1622 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1623 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1624 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1625
1626 bzero(mode_buffer, mode_buffer_len);
1627
1628 /*
1629 * Now get the device capabilities page.
1630 */
1631 scsi_mode_sense(&ccb->csio,
1632 /* retries */ 1,
1633 /* cbfcnp */ chdone,
1634 /* tag_action */ MSG_SIMPLE_Q_TAG,
1635 /* dbd */ dbd,
1636 /* pc */ SMS_PAGE_CTRL_CURRENT,
1637 /* page */ CH_DEVICE_CAP_PAGE,
1638 /* param_buf */ (uint8_t *)mode_buffer,
1639 /* param_len */ mode_buffer_len,
1640 /* sense_len */ SSD_FULL_SIZE,
1641 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1642
1643 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1644 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1645 softc->device_stats);
1646
1647 if (error) {
1648 if (dbd) {
1649 struct scsi_mode_sense_6 *sms;
1650
1651 sms = (struct scsi_mode_sense_6 *)
1652 ccb->csio.cdb_io.cdb_bytes;
1653
1654 sms->byte2 &= ~SMS_DBD;
1655 error = cam_periph_runccb(ccb, cherror,
1656 /*cam_flags*/ CAM_RETRY_SELTO,
1657 /*sense_flags*/ SF_RETRY_UA,
1658 softc->device_stats);
1659 } else {
1660 /*
1661 * Since we disabled sense printing above, print
1662 * out the sense here since we got an error.
1663 */
1664 scsi_sense_print(&ccb->csio);
1665 }
1666
1667 if (error) {
1668 xpt_print(periph->path,
1669 "chgetparams: error getting device "
1670 "capabilities page\n");
1671 xpt_release_ccb(ccb);
1672 free(mode_buffer, M_SCSICH);
1673 return(error);
1674 }
1675 }
1676
1677 xpt_release_ccb(ccb);
1678
1679 cap = (struct page_device_capabilities *)
1680 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1681
1682 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1683 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1684 moves = cap->move_from;
1685 exchanges = cap->exchange_with;
1686 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1687 softc->sc_movemask[from] = moves[from];
1688 softc->sc_exchangemask[from] = exchanges[from];
1689 }
1690
1691 free(mode_buffer, M_SCSICH);
1692
1693 return(error);
1694 }
1695
1696 static int
chscsiversion(struct cam_periph * periph)1697 chscsiversion(struct cam_periph *periph)
1698 {
1699 struct scsi_inquiry_data *inq_data;
1700 struct ccb_getdev *cgd;
1701 int dev_scsi_version;
1702
1703 cam_periph_assert(periph, MA_OWNED);
1704 if ((cgd = (struct ccb_getdev *)xpt_alloc_ccb_nowait()) == NULL)
1705 return (-1);
1706 /*
1707 * Get the device information.
1708 */
1709 xpt_setup_ccb(&cgd->ccb_h,
1710 periph->path,
1711 CAM_PRIORITY_NORMAL);
1712 cgd->ccb_h.func_code = XPT_GDEV_TYPE;
1713 xpt_action((union ccb *)cgd);
1714
1715 if (cgd->ccb_h.status != CAM_REQ_CMP) {
1716 xpt_free_ccb((union ccb *)cgd);
1717 return -1;
1718 }
1719
1720 inq_data = &cgd->inq_data;
1721 dev_scsi_version = inq_data->version;
1722 xpt_free_ccb((union ccb *)cgd);
1723
1724 return dev_scsi_version;
1725 }
1726
1727 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)1728 scsi_move_medium(struct ccb_scsiio *csio, uint32_t retries,
1729 void (*cbfcnp)(struct cam_periph *, union ccb *),
1730 uint8_t tag_action, uint32_t tea, uint32_t src,
1731 uint32_t dst, int invert, uint8_t sense_len,
1732 uint32_t timeout)
1733 {
1734 struct scsi_move_medium *scsi_cmd;
1735
1736 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1737 bzero(scsi_cmd, sizeof(*scsi_cmd));
1738
1739 scsi_cmd->opcode = MOVE_MEDIUM;
1740
1741 scsi_ulto2b(tea, scsi_cmd->tea);
1742 scsi_ulto2b(src, scsi_cmd->src);
1743 scsi_ulto2b(dst, scsi_cmd->dst);
1744
1745 if (invert)
1746 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1747
1748 cam_fill_csio(csio,
1749 retries,
1750 cbfcnp,
1751 /*flags*/ CAM_DIR_NONE,
1752 tag_action,
1753 /*data_ptr*/ NULL,
1754 /*dxfer_len*/ 0,
1755 sense_len,
1756 sizeof(*scsi_cmd),
1757 timeout);
1758 }
1759
1760 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)1761 scsi_exchange_medium(struct ccb_scsiio *csio, uint32_t retries,
1762 void (*cbfcnp)(struct cam_periph *, union ccb *),
1763 uint8_t tag_action, uint32_t tea, uint32_t src,
1764 uint32_t dst1, uint32_t dst2, int invert1,
1765 int invert2, uint8_t sense_len, uint32_t timeout)
1766 {
1767 struct scsi_exchange_medium *scsi_cmd;
1768
1769 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1770 bzero(scsi_cmd, sizeof(*scsi_cmd));
1771
1772 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1773
1774 scsi_ulto2b(tea, scsi_cmd->tea);
1775 scsi_ulto2b(src, scsi_cmd->src);
1776 scsi_ulto2b(dst1, scsi_cmd->fdst);
1777 scsi_ulto2b(dst2, scsi_cmd->sdst);
1778
1779 if (invert1)
1780 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1781
1782 if (invert2)
1783 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1784
1785 cam_fill_csio(csio,
1786 retries,
1787 cbfcnp,
1788 /*flags*/ CAM_DIR_NONE,
1789 tag_action,
1790 /*data_ptr*/ NULL,
1791 /*dxfer_len*/ 0,
1792 sense_len,
1793 sizeof(*scsi_cmd),
1794 timeout);
1795 }
1796
1797 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)1798 scsi_position_to_element(struct ccb_scsiio *csio, uint32_t retries,
1799 void (*cbfcnp)(struct cam_periph *, union ccb *),
1800 uint8_t tag_action, uint32_t tea, uint32_t dst,
1801 int invert, uint8_t sense_len, uint32_t timeout)
1802 {
1803 struct scsi_position_to_element *scsi_cmd;
1804
1805 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1806 bzero(scsi_cmd, sizeof(*scsi_cmd));
1807
1808 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1809
1810 scsi_ulto2b(tea, scsi_cmd->tea);
1811 scsi_ulto2b(dst, scsi_cmd->dst);
1812
1813 if (invert)
1814 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1815
1816 cam_fill_csio(csio,
1817 retries,
1818 cbfcnp,
1819 /*flags*/ CAM_DIR_NONE,
1820 tag_action,
1821 /*data_ptr*/ NULL,
1822 /*dxfer_len*/ 0,
1823 sense_len,
1824 sizeof(*scsi_cmd),
1825 timeout);
1826 }
1827
1828 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)1829 scsi_read_element_status(struct ccb_scsiio *csio, uint32_t retries,
1830 void (*cbfcnp)(struct cam_periph *, union ccb *),
1831 uint8_t tag_action, int voltag, uint32_t sea,
1832 int curdata, int dvcid,
1833 uint32_t count, uint8_t *data_ptr,
1834 uint32_t dxfer_len, uint8_t sense_len,
1835 uint32_t timeout)
1836 {
1837 struct scsi_read_element_status *scsi_cmd;
1838
1839 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1840 bzero(scsi_cmd, sizeof(*scsi_cmd));
1841
1842 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1843
1844 scsi_ulto2b(sea, scsi_cmd->sea);
1845 scsi_ulto2b(count, scsi_cmd->count);
1846 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1847 if (dvcid)
1848 scsi_cmd->flags |= READ_ELEMENT_STATUS_DVCID;
1849 if (curdata)
1850 scsi_cmd->flags |= READ_ELEMENT_STATUS_CURDATA;
1851
1852 if (voltag)
1853 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1854
1855 cam_fill_csio(csio,
1856 retries,
1857 cbfcnp,
1858 /*flags*/ CAM_DIR_IN,
1859 tag_action,
1860 data_ptr,
1861 dxfer_len,
1862 sense_len,
1863 sizeof(*scsi_cmd),
1864 timeout);
1865 }
1866
1867 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)1868 scsi_initialize_element_status(struct ccb_scsiio *csio, uint32_t retries,
1869 void (*cbfcnp)(struct cam_periph *, union ccb *),
1870 uint8_t tag_action, uint8_t sense_len,
1871 uint32_t timeout)
1872 {
1873 struct scsi_initialize_element_status *scsi_cmd;
1874
1875 scsi_cmd = (struct scsi_initialize_element_status *)
1876 &csio->cdb_io.cdb_bytes;
1877 bzero(scsi_cmd, sizeof(*scsi_cmd));
1878
1879 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1880
1881 cam_fill_csio(csio,
1882 retries,
1883 cbfcnp,
1884 /*flags*/ CAM_DIR_NONE,
1885 tag_action,
1886 /* data_ptr */ NULL,
1887 /* dxfer_len */ 0,
1888 sense_len,
1889 sizeof(*scsi_cmd),
1890 timeout);
1891 }
1892
1893 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)1894 scsi_send_volume_tag(struct ccb_scsiio *csio, uint32_t retries,
1895 void (*cbfcnp)(struct cam_periph *, union ccb *),
1896 uint8_t tag_action,
1897 uint16_t element_address,
1898 uint8_t send_action_code,
1899 struct scsi_send_volume_tag_parameters *parameters,
1900 uint8_t sense_len, uint32_t timeout)
1901 {
1902 struct scsi_send_volume_tag *scsi_cmd;
1903
1904 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1905 bzero(scsi_cmd, sizeof(*scsi_cmd));
1906
1907 scsi_cmd->opcode = SEND_VOLUME_TAG;
1908 scsi_ulto2b(element_address, scsi_cmd->ea);
1909 scsi_cmd->sac = send_action_code;
1910 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1911
1912 cam_fill_csio(csio,
1913 retries,
1914 cbfcnp,
1915 /*flags*/ CAM_DIR_OUT,
1916 tag_action,
1917 /* data_ptr */ (uint8_t *) parameters,
1918 sizeof(*parameters),
1919 sense_len,
1920 sizeof(*scsi_cmd),
1921 timeout);
1922 }
1923