1 /*-
2 * Copyright (c) 1997 Justin T. Gibbs.
3 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 /*
29 * Derived from the NetBSD SCSI changer driver.
30 *
31 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $
32 *
33 */
34 /*-
35 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
36 * All rights reserved.
37 *
38 * Partially based on an autochanger driver written by Stefan Grefen
39 * and on an autochanger driver written by the Systems Programming Group
40 * at the University of Utah Computer Science Department.
41 *
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgements:
52 * This product includes software developed by Jason R. Thorpe
53 * for And Communications, http://www.and.com/
54 * 4. The name of the author may not be used to endorse or promote products
55 * derived from this software without specific prior written permission.
56 *
57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
62 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
63 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
64 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
65 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
66 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
67 * SUCH DAMAGE.
68 */
69
70 #include <sys/cdefs.h>
71 __FBSDID("$FreeBSD$");
72
73 #include <sys/param.h>
74 #include <sys/queue.h>
75 #include <sys/systm.h>
76 #include <sys/kernel.h>
77 #include <sys/types.h>
78 #include <sys/malloc.h>
79 #include <sys/fcntl.h>
80 #include <sys/conf.h>
81 #include <sys/chio.h>
82 #include <sys/errno.h>
83 #include <sys/devicestat.h>
84
85 #include <cam/cam.h>
86 #include <cam/cam_ccb.h>
87 #include <cam/cam_periph.h>
88 #include <cam/cam_xpt_periph.h>
89 #include <cam/cam_debug.h>
90
91 #include <cam/scsi/scsi_all.h>
92 #include <cam/scsi/scsi_message.h>
93 #include <cam/scsi/scsi_ch.h>
94
95 /*
96 * Timeout definitions for various changer related commands. They may
97 * be too short for some devices (especially the timeout for INITIALIZE
98 * ELEMENT STATUS).
99 */
100
101 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000;
102 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 15 * 60 * 1000;
103 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 15 * 60 * 1000;
104 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 15 * 60 * 1000;
105 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 5 * 60 * 1000;
106 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
107 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
108
109 typedef enum {
110 CH_FLAG_INVALID = 0x001
111 } ch_flags;
112
113 typedef enum {
114 CH_STATE_PROBE,
115 CH_STATE_NORMAL
116 } ch_state;
117
118 typedef enum {
119 CH_CCB_PROBE
120 } ch_ccb_types;
121
122 typedef enum {
123 CH_Q_NONE = 0x00,
124 CH_Q_NO_DBD = 0x01,
125 CH_Q_NO_DVCID = 0x02
126 } ch_quirks;
127
128 #define CH_Q_BIT_STRING \
129 "\020" \
130 "\001NO_DBD" \
131 "\002NO_DVCID"
132
133 #define ccb_state ppriv_field0
134 #define ccb_bp ppriv_ptr1
135
136 struct scsi_mode_sense_data {
137 struct scsi_mode_header_6 header;
138 struct scsi_mode_blk_desc blk_desc;
139 union {
140 struct page_element_address_assignment ea;
141 struct page_transport_geometry_parameters tg;
142 struct page_device_capabilities cap;
143 } pages;
144 };
145
146 struct ch_softc {
147 ch_flags flags;
148 ch_state state;
149 ch_quirks quirks;
150 union ccb saved_ccb;
151 struct devstat *device_stats;
152 struct cdev *dev;
153 int open_count;
154
155 int sc_picker; /* current picker */
156
157 /*
158 * The following information is obtained from the
159 * element address assignment page.
160 */
161 int sc_firsts[CHET_MAX + 1]; /* firsts */
162 int sc_counts[CHET_MAX + 1]; /* counts */
163
164 /*
165 * The following mask defines the legal combinations
166 * of elements for the MOVE MEDIUM command.
167 */
168 u_int8_t sc_movemask[CHET_MAX + 1];
169
170 /*
171 * As above, but for EXCHANGE MEDIUM.
172 */
173 u_int8_t sc_exchangemask[CHET_MAX + 1];
174
175 /*
176 * Quirks; see below. XXX KDM not implemented yet
177 */
178 int sc_settledelay; /* delay for settle */
179 };
180
181 static d_open_t chopen;
182 static d_close_t chclose;
183 static d_ioctl_t chioctl;
184 static periph_init_t chinit;
185 static periph_ctor_t chregister;
186 static periph_oninv_t choninvalidate;
187 static periph_dtor_t chcleanup;
188 static periph_start_t chstart;
189 static void chasync(void *callback_arg, u_int32_t code,
190 struct cam_path *path, void *arg);
191 static void chdone(struct cam_periph *periph,
192 union ccb *done_ccb);
193 static int cherror(union ccb *ccb, u_int32_t cam_flags,
194 u_int32_t sense_flags);
195 static int chmove(struct cam_periph *periph,
196 struct changer_move *cm);
197 static int chexchange(struct cam_periph *periph,
198 struct changer_exchange *ce);
199 static int chposition(struct cam_periph *periph,
200 struct changer_position *cp);
201 static int chgetelemstatus(struct cam_periph *periph,
202 int scsi_version, u_long cmd,
203 struct changer_element_status_request *csr);
204 static int chsetvoltag(struct cam_periph *periph,
205 struct changer_set_voltag_request *csvr);
206 static int chielem(struct cam_periph *periph,
207 unsigned int timeout);
208 static int chgetparams(struct cam_periph *periph);
209 static int chscsiversion(struct cam_periph *periph);
210
211 static struct periph_driver chdriver =
212 {
213 chinit, "ch",
214 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
215 };
216
217 PERIPHDRIVER_DECLARE(ch, chdriver);
218
219 static struct cdevsw ch_cdevsw = {
220 .d_version = D_VERSION,
221 .d_flags = D_TRACKCLOSE,
222 .d_open = chopen,
223 .d_close = chclose,
224 .d_ioctl = chioctl,
225 .d_name = "ch",
226 };
227
228 static MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
229
230 static void
chinit(void)231 chinit(void)
232 {
233 cam_status status;
234
235 /*
236 * Install a global async callback. This callback will
237 * receive async callbacks like "new device found".
238 */
239 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
240
241 if (status != CAM_REQ_CMP) {
242 printf("ch: Failed to attach master async callback "
243 "due to status 0x%x!\n", status);
244 }
245 }
246
247 static void
chdevgonecb(void * arg)248 chdevgonecb(void *arg)
249 {
250 struct ch_softc *softc;
251 struct cam_periph *periph;
252 struct mtx *mtx;
253 int i;
254
255 periph = (struct cam_periph *)arg;
256 mtx = cam_periph_mtx(periph);
257 mtx_lock(mtx);
258
259 softc = (struct ch_softc *)periph->softc;
260 KASSERT(softc->open_count >= 0, ("Negative open count %d",
261 softc->open_count));
262
263 /*
264 * When we get this callback, we will get no more close calls from
265 * devfs. So if we have any dangling opens, we need to release the
266 * reference held for that particular context.
267 */
268 for (i = 0; i < softc->open_count; i++)
269 cam_periph_release_locked(periph);
270
271 softc->open_count = 0;
272
273 /*
274 * Release the reference held for the device node, it is gone now.
275 */
276 cam_periph_release_locked(periph);
277
278 /*
279 * We reference the lock directly here, instead of using
280 * cam_periph_unlock(). The reason is that the final call to
281 * cam_periph_release_locked() above could result in the periph
282 * getting freed. If that is the case, dereferencing the periph
283 * with a cam_periph_unlock() call would cause a page fault.
284 */
285 mtx_unlock(mtx);
286 }
287
288 static void
choninvalidate(struct cam_periph * periph)289 choninvalidate(struct cam_periph *periph)
290 {
291 struct ch_softc *softc;
292
293 softc = (struct ch_softc *)periph->softc;
294
295 /*
296 * De-register any async callbacks.
297 */
298 xpt_register_async(0, chasync, periph, periph->path);
299
300 softc->flags |= CH_FLAG_INVALID;
301
302 /*
303 * Tell devfs this device has gone away, and ask for a callback
304 * when it has cleaned up its state.
305 */
306 destroy_dev_sched_cb(softc->dev, chdevgonecb, periph);
307 }
308
309 static void
chcleanup(struct cam_periph * periph)310 chcleanup(struct cam_periph *periph)
311 {
312 struct ch_softc *softc;
313
314 softc = (struct ch_softc *)periph->softc;
315
316 devstat_remove_entry(softc->device_stats);
317
318 free(softc, M_DEVBUF);
319 }
320
321 static void
chasync(void * callback_arg,u_int32_t code,struct cam_path * path,void * arg)322 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
323 {
324 struct cam_periph *periph;
325
326 periph = (struct cam_periph *)callback_arg;
327
328 switch(code) {
329 case AC_FOUND_DEVICE:
330 {
331 struct ccb_getdev *cgd;
332 cam_status status;
333
334 cgd = (struct ccb_getdev *)arg;
335 if (cgd == NULL)
336 break;
337
338 if (cgd->protocol != PROTO_SCSI)
339 break;
340 if (SID_QUAL(&cgd->inq_data) != SID_QUAL_LU_CONNECTED)
341 break;
342 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
343 break;
344
345 /*
346 * Allocate a peripheral instance for
347 * this device and start the probe
348 * process.
349 */
350 status = cam_periph_alloc(chregister, choninvalidate,
351 chcleanup, chstart, "ch",
352 CAM_PERIPH_BIO, path,
353 chasync, AC_FOUND_DEVICE, cgd);
354
355 if (status != CAM_REQ_CMP
356 && status != CAM_REQ_INPROG)
357 printf("chasync: Unable to probe new device "
358 "due to status 0x%x\n", status);
359
360 break;
361
362 }
363 default:
364 cam_periph_async(periph, code, path, arg);
365 break;
366 }
367 }
368
369 static cam_status
chregister(struct cam_periph * periph,void * arg)370 chregister(struct cam_periph *periph, void *arg)
371 {
372 struct ch_softc *softc;
373 struct ccb_getdev *cgd;
374 struct ccb_pathinq cpi;
375 struct make_dev_args args;
376 int error;
377
378 cgd = (struct ccb_getdev *)arg;
379 if (cgd == NULL) {
380 printf("chregister: no getdev CCB, can't register device\n");
381 return(CAM_REQ_CMP_ERR);
382 }
383
384 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
385
386 if (softc == NULL) {
387 printf("chregister: Unable to probe new device. "
388 "Unable to allocate softc\n");
389 return(CAM_REQ_CMP_ERR);
390 }
391
392 bzero(softc, sizeof(*softc));
393 softc->state = CH_STATE_PROBE;
394 periph->softc = softc;
395 softc->quirks = CH_Q_NONE;
396
397 /*
398 * The DVCID and CURDATA bits were not introduced until the SMC
399 * spec. If this device claims SCSI-2 or earlier support, then it
400 * very likely does not support these bits.
401 */
402 if (cgd->inq_data.version <= SCSI_REV_2)
403 softc->quirks |= CH_Q_NO_DVCID;
404
405 xpt_path_inq(&cpi, periph->path);
406
407 /*
408 * Changers don't have a blocksize, and obviously don't support
409 * tagged queueing.
410 */
411 cam_periph_unlock(periph);
412 softc->device_stats = devstat_new_entry("ch",
413 periph->unit_number, 0,
414 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
415 SID_TYPE(&cgd->inq_data) |
416 XPORT_DEVSTAT_TYPE(cpi.transport),
417 DEVSTAT_PRIORITY_OTHER);
418
419 /*
420 * Acquire a reference to the periph before we create the devfs
421 * instance for it. We'll release this reference once the devfs
422 * instance has been freed.
423 */
424 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
425 xpt_print(periph->path, "%s: lost periph during "
426 "registration!\n", __func__);
427 cam_periph_lock(periph);
428 return (CAM_REQ_CMP_ERR);
429 }
430
431
432 /* Register the device */
433 make_dev_args_init(&args);
434 args.mda_devsw = &ch_cdevsw;
435 args.mda_unit = periph->unit_number;
436 args.mda_uid = UID_ROOT;
437 args.mda_gid = GID_OPERATOR;
438 args.mda_mode = 0600;
439 args.mda_si_drv1 = periph;
440 error = make_dev_s(&args, &softc->dev, "%s%d", periph->periph_name,
441 periph->unit_number);
442 cam_periph_lock(periph);
443 if (error != 0) {
444 cam_periph_release_locked(periph);
445 return (CAM_REQ_CMP_ERR);
446 }
447
448 /*
449 * Add an async callback so that we get
450 * notified if this device goes away.
451 */
452 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
453
454 /*
455 * Lock this periph until we are setup.
456 * This first call can't block
457 */
458 (void)cam_periph_hold(periph, PRIBIO);
459 xpt_schedule(periph, CAM_PRIORITY_DEV);
460
461 return(CAM_REQ_CMP);
462 }
463
464 static int
chopen(struct cdev * dev,int flags,int fmt,struct thread * td)465 chopen(struct cdev *dev, int flags, int fmt, struct thread *td)
466 {
467 struct cam_periph *periph;
468 struct ch_softc *softc;
469 int error;
470
471 periph = (struct cam_periph *)dev->si_drv1;
472 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
473 return (ENXIO);
474
475 softc = (struct ch_softc *)periph->softc;
476
477 cam_periph_lock(periph);
478
479 if (softc->flags & CH_FLAG_INVALID) {
480 cam_periph_release_locked(periph);
481 cam_periph_unlock(periph);
482 return(ENXIO);
483 }
484
485 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
486 cam_periph_unlock(periph);
487 cam_periph_release(periph);
488 return (error);
489 }
490
491 /*
492 * Load information about this changer device into the softc.
493 */
494 if ((error = chgetparams(periph)) != 0) {
495 cam_periph_unhold(periph);
496 cam_periph_release_locked(periph);
497 cam_periph_unlock(periph);
498 return(error);
499 }
500
501 cam_periph_unhold(periph);
502
503 softc->open_count++;
504
505 cam_periph_unlock(periph);
506
507 return(error);
508 }
509
510 static int
chclose(struct cdev * dev,int flag,int fmt,struct thread * td)511 chclose(struct cdev *dev, int flag, int fmt, struct thread *td)
512 {
513 struct cam_periph *periph;
514 struct ch_softc *softc;
515 struct mtx *mtx;
516
517 periph = (struct cam_periph *)dev->si_drv1;
518 mtx = cam_periph_mtx(periph);
519 mtx_lock(mtx);
520
521 softc = (struct ch_softc *)periph->softc;
522 softc->open_count--;
523
524 cam_periph_release_locked(periph);
525
526 /*
527 * We reference the lock directly here, instead of using
528 * cam_periph_unlock(). The reason is that the call to
529 * cam_periph_release_locked() above could result in the periph
530 * getting freed. If that is the case, dereferencing the periph
531 * with a cam_periph_unlock() call would cause a page fault.
532 *
533 * cam_periph_release() avoids this problem using the same method,
534 * but we're manually acquiring and dropping the lock here to
535 * protect the open count and avoid another lock acquisition and
536 * release.
537 */
538 mtx_unlock(mtx);
539
540 return(0);
541 }
542
543 static void
chstart(struct cam_periph * periph,union ccb * start_ccb)544 chstart(struct cam_periph *periph, union ccb *start_ccb)
545 {
546 struct ch_softc *softc;
547
548 softc = (struct ch_softc *)periph->softc;
549
550 switch (softc->state) {
551 case CH_STATE_NORMAL:
552 {
553 xpt_release_ccb(start_ccb);
554 break;
555 }
556 case CH_STATE_PROBE:
557 {
558 int mode_buffer_len;
559 void *mode_buffer;
560
561 /*
562 * Include the block descriptor when calculating the mode
563 * buffer length,
564 */
565 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
566 sizeof(struct scsi_mode_blk_desc) +
567 sizeof(struct page_element_address_assignment);
568
569 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
570
571 if (mode_buffer == NULL) {
572 printf("chstart: couldn't malloc mode sense data\n");
573 break;
574 }
575 bzero(mode_buffer, mode_buffer_len);
576
577 /*
578 * Get the element address assignment page.
579 */
580 scsi_mode_sense(&start_ccb->csio,
581 /* retries */ 1,
582 /* cbfcnp */ chdone,
583 /* tag_action */ MSG_SIMPLE_Q_TAG,
584 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
585 FALSE : TRUE,
586 /* pc */ SMS_PAGE_CTRL_CURRENT,
587 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
588 /* param_buf */ (u_int8_t *)mode_buffer,
589 /* param_len */ mode_buffer_len,
590 /* sense_len */ SSD_FULL_SIZE,
591 /* timeout */ CH_TIMEOUT_MODE_SENSE);
592
593 start_ccb->ccb_h.ccb_bp = NULL;
594 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
595 xpt_action(start_ccb);
596 break;
597 }
598 }
599 }
600
601 static void
chdone(struct cam_periph * periph,union ccb * done_ccb)602 chdone(struct cam_periph *periph, union ccb *done_ccb)
603 {
604 struct ch_softc *softc;
605 struct ccb_scsiio *csio;
606
607 softc = (struct ch_softc *)periph->softc;
608 csio = &done_ccb->csio;
609
610 switch(done_ccb->ccb_h.ccb_state) {
611 case CH_CCB_PROBE:
612 {
613 struct scsi_mode_header_6 *mode_header;
614 struct page_element_address_assignment *ea;
615 char announce_buf[80];
616
617
618 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
619
620 ea = (struct page_element_address_assignment *)
621 find_mode_page_6(mode_header);
622
623 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
624
625 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
626 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
627 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
628 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
629 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
630 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
631 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
632 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
633 softc->sc_picker = softc->sc_firsts[CHET_MT];
634
635 #define PLURAL(c) (c) == 1 ? "" : "s"
636 snprintf(announce_buf, sizeof(announce_buf),
637 "%d slot%s, %d drive%s, "
638 "%d picker%s, %d portal%s",
639 softc->sc_counts[CHET_ST],
640 PLURAL(softc->sc_counts[CHET_ST]),
641 softc->sc_counts[CHET_DT],
642 PLURAL(softc->sc_counts[CHET_DT]),
643 softc->sc_counts[CHET_MT],
644 PLURAL(softc->sc_counts[CHET_MT]),
645 softc->sc_counts[CHET_IE],
646 PLURAL(softc->sc_counts[CHET_IE]));
647 #undef PLURAL
648 if (announce_buf[0] != '\0') {
649 xpt_announce_periph(periph, announce_buf);
650 xpt_announce_quirks(periph, softc->quirks,
651 CH_Q_BIT_STRING);
652 }
653 } else {
654 int error;
655
656 error = cherror(done_ccb, CAM_RETRY_SELTO,
657 SF_RETRY_UA | SF_NO_PRINT);
658 /*
659 * Retry any UNIT ATTENTION type errors. They
660 * are expected at boot.
661 */
662 if (error == ERESTART) {
663 /*
664 * A retry was scheduled, so
665 * just return.
666 */
667 return;
668 } else if (error != 0) {
669 struct scsi_mode_sense_6 *sms;
670 int frozen, retry_scheduled;
671
672 sms = (struct scsi_mode_sense_6 *)
673 done_ccb->csio.cdb_io.cdb_bytes;
674 frozen = (done_ccb->ccb_h.status &
675 CAM_DEV_QFRZN) != 0;
676
677 /*
678 * Check to see if block descriptors were
679 * disabled. Some devices don't like that.
680 * We're taking advantage of the fact that
681 * the first few bytes of the 6 and 10 byte
682 * mode sense commands are the same. If
683 * block descriptors were disabled, enable
684 * them and re-send the command.
685 */
686 if ((sms->byte2 & SMS_DBD) != 0 &&
687 (periph->flags & CAM_PERIPH_INVALID) == 0) {
688 sms->byte2 &= ~SMS_DBD;
689 xpt_action(done_ccb);
690 softc->quirks |= CH_Q_NO_DBD;
691 retry_scheduled = 1;
692 } else
693 retry_scheduled = 0;
694
695 /* Don't wedge this device's queue */
696 if (frozen)
697 cam_release_devq(done_ccb->ccb_h.path,
698 /*relsim_flags*/0,
699 /*reduction*/0,
700 /*timeout*/0,
701 /*getcount_only*/0);
702
703 if (retry_scheduled)
704 return;
705
706 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
707 == CAM_SCSI_STATUS_ERROR)
708 scsi_sense_print(&done_ccb->csio);
709 else {
710 xpt_print(periph->path,
711 "got CAM status %#x\n",
712 done_ccb->ccb_h.status);
713 }
714 xpt_print(periph->path, "fatal error, failed "
715 "to attach to device\n");
716
717 cam_periph_invalidate(periph);
718
719 }
720 }
721 softc->state = CH_STATE_NORMAL;
722 free(mode_header, M_SCSICH);
723 /*
724 * Since our peripheral may be invalidated by an error
725 * above or an external event, we must release our CCB
726 * before releasing the probe lock on the peripheral.
727 * The peripheral will only go away once the last lock
728 * is removed, and we need it around for the CCB release
729 * operation.
730 */
731 xpt_release_ccb(done_ccb);
732 cam_periph_unhold(periph);
733 return;
734 }
735 default:
736 break;
737 }
738 xpt_release_ccb(done_ccb);
739 }
740
741 static int
cherror(union ccb * ccb,u_int32_t cam_flags,u_int32_t sense_flags)742 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
743 {
744 struct ch_softc *softc;
745 struct cam_periph *periph;
746
747 periph = xpt_path_periph(ccb->ccb_h.path);
748 softc = (struct ch_softc *)periph->softc;
749
750 return (cam_periph_error(ccb, cam_flags, sense_flags,
751 &softc->saved_ccb));
752 }
753
754 static int
chioctl(struct cdev * dev,u_long cmd,caddr_t addr,int flag,struct thread * td)755 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
756 {
757 struct cam_periph *periph;
758 struct ch_softc *softc;
759 int error;
760
761 periph = (struct cam_periph *)dev->si_drv1;
762 cam_periph_lock(periph);
763 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
764
765 softc = (struct ch_softc *)periph->softc;
766
767 error = 0;
768
769 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
770 ("trying to do ioctl %#lx\n", cmd));
771
772 /*
773 * If this command can change the device's state, we must
774 * have the device open for writing.
775 */
776 switch (cmd) {
777 case CHIOGPICKER:
778 case CHIOGPARAMS:
779 case OCHIOGSTATUS:
780 case CHIOGSTATUS:
781 break;
782
783 default:
784 if ((flag & FWRITE) == 0) {
785 cam_periph_unlock(periph);
786 return (EBADF);
787 }
788 }
789
790 switch (cmd) {
791 case CHIOMOVE:
792 error = chmove(periph, (struct changer_move *)addr);
793 break;
794
795 case CHIOEXCHANGE:
796 error = chexchange(periph, (struct changer_exchange *)addr);
797 break;
798
799 case CHIOPOSITION:
800 error = chposition(periph, (struct changer_position *)addr);
801 break;
802
803 case CHIOGPICKER:
804 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
805 break;
806
807 case CHIOSPICKER:
808 {
809 int new_picker = *(int *)addr;
810
811 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
812 error = EINVAL;
813 break;
814 }
815 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
816 break;
817 }
818 case CHIOGPARAMS:
819 {
820 struct changer_params *cp = (struct changer_params *)addr;
821
822 cp->cp_npickers = softc->sc_counts[CHET_MT];
823 cp->cp_nslots = softc->sc_counts[CHET_ST];
824 cp->cp_nportals = softc->sc_counts[CHET_IE];
825 cp->cp_ndrives = softc->sc_counts[CHET_DT];
826 break;
827 }
828 case CHIOIELEM:
829 error = chielem(periph, *(unsigned int *)addr);
830 break;
831
832 case OCHIOGSTATUS:
833 {
834 error = chgetelemstatus(periph, SCSI_REV_2, cmd,
835 (struct changer_element_status_request *)addr);
836 break;
837 }
838
839 case CHIOGSTATUS:
840 {
841 int scsi_version;
842
843 scsi_version = chscsiversion(periph);
844 if (scsi_version >= SCSI_REV_0) {
845 error = chgetelemstatus(periph, scsi_version, cmd,
846 (struct changer_element_status_request *)addr);
847 }
848 else { /* unable to determine the SCSI version */
849 cam_periph_unlock(periph);
850 return (ENXIO);
851 }
852 break;
853 }
854
855 case CHIOSETVOLTAG:
856 {
857 error = chsetvoltag(periph,
858 (struct changer_set_voltag_request *) addr);
859 break;
860 }
861
862 /* Implement prevent/allow? */
863
864 default:
865 error = cam_periph_ioctl(periph, cmd, addr, cherror);
866 break;
867 }
868
869 cam_periph_unlock(periph);
870 return (error);
871 }
872
873 static int
chmove(struct cam_periph * periph,struct changer_move * cm)874 chmove(struct cam_periph *periph, struct changer_move *cm)
875 {
876 struct ch_softc *softc;
877 u_int16_t fromelem, toelem;
878 union ccb *ccb;
879 int error;
880
881 error = 0;
882 softc = (struct ch_softc *)periph->softc;
883
884 /*
885 * Check arguments.
886 */
887 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
888 return (EINVAL);
889 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
890 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
891 return (ENODEV);
892
893 /*
894 * Check the request against the changer's capabilities.
895 */
896 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
897 return (ENODEV);
898
899 /*
900 * Calculate the source and destination elements.
901 */
902 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
903 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
904
905 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
906
907 scsi_move_medium(&ccb->csio,
908 /* retries */ 1,
909 /* cbfcnp */ chdone,
910 /* tag_action */ MSG_SIMPLE_Q_TAG,
911 /* tea */ softc->sc_picker,
912 /* src */ fromelem,
913 /* dst */ toelem,
914 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
915 /* sense_len */ SSD_FULL_SIZE,
916 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
917
918 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
919 /*sense_flags*/ SF_RETRY_UA,
920 softc->device_stats);
921
922 xpt_release_ccb(ccb);
923
924 return(error);
925 }
926
927 static int
chexchange(struct cam_periph * periph,struct changer_exchange * ce)928 chexchange(struct cam_periph *periph, struct changer_exchange *ce)
929 {
930 struct ch_softc *softc;
931 u_int16_t src, dst1, dst2;
932 union ccb *ccb;
933 int error;
934
935 error = 0;
936 softc = (struct ch_softc *)periph->softc;
937 /*
938 * Check arguments.
939 */
940 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
941 (ce->ce_sdsttype > CHET_DT))
942 return (EINVAL);
943 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
944 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
945 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
946 return (ENODEV);
947
948 /*
949 * Check the request against the changer's capabilities.
950 */
951 if (((softc->sc_exchangemask[ce->ce_srctype] &
952 (1 << ce->ce_fdsttype)) == 0) ||
953 ((softc->sc_exchangemask[ce->ce_fdsttype] &
954 (1 << ce->ce_sdsttype)) == 0))
955 return (ENODEV);
956
957 /*
958 * Calculate the source and destination elements.
959 */
960 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
961 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
962 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
963
964 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
965
966 scsi_exchange_medium(&ccb->csio,
967 /* retries */ 1,
968 /* cbfcnp */ chdone,
969 /* tag_action */ MSG_SIMPLE_Q_TAG,
970 /* tea */ softc->sc_picker,
971 /* src */ src,
972 /* dst1 */ dst1,
973 /* dst2 */ dst2,
974 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
975 TRUE : FALSE,
976 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
977 TRUE : FALSE,
978 /* sense_len */ SSD_FULL_SIZE,
979 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
980
981 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
982 /*sense_flags*/ SF_RETRY_UA,
983 softc->device_stats);
984
985 xpt_release_ccb(ccb);
986
987 return(error);
988 }
989
990 static int
chposition(struct cam_periph * periph,struct changer_position * cp)991 chposition(struct cam_periph *periph, struct changer_position *cp)
992 {
993 struct ch_softc *softc;
994 u_int16_t dst;
995 union ccb *ccb;
996 int error;
997
998 error = 0;
999 softc = (struct ch_softc *)periph->softc;
1000
1001 /*
1002 * Check arguments.
1003 */
1004 if (cp->cp_type > CHET_DT)
1005 return (EINVAL);
1006 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
1007 return (ENODEV);
1008
1009 /*
1010 * Calculate the destination element.
1011 */
1012 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
1013
1014 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1015
1016 scsi_position_to_element(&ccb->csio,
1017 /* retries */ 1,
1018 /* cbfcnp */ chdone,
1019 /* tag_action */ MSG_SIMPLE_Q_TAG,
1020 /* tea */ softc->sc_picker,
1021 /* dst */ dst,
1022 /* invert */ (cp->cp_flags & CP_INVERT) ?
1023 TRUE : FALSE,
1024 /* sense_len */ SSD_FULL_SIZE,
1025 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
1026
1027 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1028 /*sense_flags*/ SF_RETRY_UA,
1029 softc->device_stats);
1030
1031 xpt_release_ccb(ccb);
1032
1033 return(error);
1034 }
1035
1036 /*
1037 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
1038 * to host native byte order in the volume serial number. The volume
1039 * label as returned by the changer is transferred to user mode as
1040 * nul-terminated string. Volume labels are truncated at the first
1041 * space, as suggested by SCSI-2.
1042 */
1043 static void
copy_voltag(struct changer_voltag * uvoltag,struct volume_tag * voltag)1044 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
1045 {
1046 int i;
1047 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
1048 char c = voltag->vif[i];
1049 if (c && c != ' ')
1050 uvoltag->cv_volid[i] = c;
1051 else
1052 break;
1053 }
1054 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
1055 }
1056
1057 /*
1058 * Copy an element status descriptor to a user-mode
1059 * changer_element_status structure.
1060 */
1061 static void
copy_element_status(struct ch_softc * softc,u_int16_t flags,struct read_element_status_descriptor * desc,struct changer_element_status * ces,int scsi_version)1062 copy_element_status(struct ch_softc *softc,
1063 u_int16_t flags,
1064 struct read_element_status_descriptor *desc,
1065 struct changer_element_status *ces,
1066 int scsi_version)
1067 {
1068 u_int16_t eaddr = scsi_2btoul(desc->eaddr);
1069 u_int16_t et;
1070 struct volume_tag *pvol_tag = NULL, *avol_tag = NULL;
1071 struct read_element_status_device_id *devid = NULL;
1072
1073 ces->ces_int_addr = eaddr;
1074 /* set up logical address in element status */
1075 for (et = CHET_MT; et <= CHET_DT; et++) {
1076 if ((softc->sc_firsts[et] <= eaddr)
1077 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1078 > eaddr)) {
1079 ces->ces_addr = eaddr - softc->sc_firsts[et];
1080 ces->ces_type = et;
1081 break;
1082 }
1083 }
1084
1085 ces->ces_flags = desc->flags1;
1086
1087 ces->ces_sensecode = desc->sense_code;
1088 ces->ces_sensequal = desc->sense_qual;
1089
1090 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
1091 ces->ces_flags |= CES_INVERT;
1092
1093 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1094
1095 eaddr = scsi_2btoul(desc->ssea);
1096
1097 /* convert source address to logical format */
1098 for (et = CHET_MT; et <= CHET_DT; et++) {
1099 if ((softc->sc_firsts[et] <= eaddr)
1100 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1101 > eaddr)) {
1102 ces->ces_source_addr =
1103 eaddr - softc->sc_firsts[et];
1104 ces->ces_source_type = et;
1105 ces->ces_flags |= CES_SOURCE_VALID;
1106 break;
1107 }
1108 }
1109
1110 if (!(ces->ces_flags & CES_SOURCE_VALID))
1111 printf("ch: warning: could not map element source "
1112 "address %ud to a valid element type\n",
1113 eaddr);
1114 }
1115
1116 /*
1117 * pvoltag and avoltag are common between SCSI-2 and later versions
1118 */
1119 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1120 pvol_tag = &desc->voltag_devid.pvoltag;
1121 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1122 avol_tag = (flags & READ_ELEMENT_STATUS_PVOLTAG) ?
1123 &desc->voltag_devid.voltag[1] :&desc->voltag_devid.pvoltag;
1124 /*
1125 * For SCSI-3 and later, element status can carry designator and
1126 * other information.
1127 */
1128 if (scsi_version >= SCSI_REV_SPC) {
1129 if ((flags & READ_ELEMENT_STATUS_PVOLTAG) ^
1130 (flags & READ_ELEMENT_STATUS_AVOLTAG))
1131 devid = &desc->voltag_devid.pvol_and_devid.devid;
1132 else if (!(flags & READ_ELEMENT_STATUS_PVOLTAG) &&
1133 !(flags & READ_ELEMENT_STATUS_AVOLTAG))
1134 devid = &desc->voltag_devid.devid;
1135 else /* Have both PVOLTAG and AVOLTAG */
1136 devid = &desc->voltag_devid.vol_tags_and_devid.devid;
1137 }
1138
1139 if (pvol_tag)
1140 copy_voltag(&(ces->ces_pvoltag), pvol_tag);
1141 if (avol_tag)
1142 copy_voltag(&(ces->ces_pvoltag), avol_tag);
1143 if (devid != NULL) {
1144 if (devid->designator_length > 0) {
1145 bcopy((void *)devid->designator,
1146 (void *)ces->ces_designator,
1147 devid->designator_length);
1148 ces->ces_designator_length = devid->designator_length;
1149 /*
1150 * Make sure we are always NUL terminated. The
1151 * This won't matter for the binary code set,
1152 * since the user will only pay attention to the
1153 * length field.
1154 */
1155 ces->ces_designator[devid->designator_length]= '\0';
1156 }
1157 if (devid->piv_assoc_designator_type &
1158 READ_ELEMENT_STATUS_PIV_SET) {
1159 ces->ces_flags |= CES_PIV;
1160 ces->ces_protocol_id =
1161 READ_ELEMENT_STATUS_PROTOCOL_ID(
1162 devid->prot_code_set);
1163 }
1164 ces->ces_code_set =
1165 READ_ELEMENT_STATUS_CODE_SET(devid->prot_code_set);
1166 ces->ces_assoc = READ_ELEMENT_STATUS_ASSOCIATION(
1167 devid->piv_assoc_designator_type);
1168 ces->ces_designator_type = READ_ELEMENT_STATUS_DESIGNATOR_TYPE(
1169 devid->piv_assoc_designator_type);
1170 } else if (scsi_version > SCSI_REV_2) {
1171 /* SCSI-SPC and No devid, no designator */
1172 ces->ces_designator_length = 0;
1173 ces->ces_designator[0] = '\0';
1174 ces->ces_protocol_id = CES_PROTOCOL_ID_FCP_4;
1175 }
1176
1177 if (scsi_version <= SCSI_REV_2) {
1178 if (desc->dt_or_obsolete.scsi_2.dt_scsi_flags &
1179 READ_ELEMENT_STATUS_DT_IDVALID) {
1180 ces->ces_flags |= CES_SCSIID_VALID;
1181 ces->ces_scsi_id =
1182 desc->dt_or_obsolete.scsi_2.dt_scsi_addr;
1183 }
1184
1185 if (desc->dt_or_obsolete.scsi_2.dt_scsi_addr &
1186 READ_ELEMENT_STATUS_DT_LUVALID) {
1187 ces->ces_flags |= CES_LUN_VALID;
1188 ces->ces_scsi_lun =
1189 desc->dt_or_obsolete.scsi_2.dt_scsi_flags &
1190 READ_ELEMENT_STATUS_DT_LUNMASK;
1191 }
1192 }
1193 }
1194
1195 static int
chgetelemstatus(struct cam_periph * periph,int scsi_version,u_long cmd,struct changer_element_status_request * cesr)1196 chgetelemstatus(struct cam_periph *periph, int scsi_version, u_long cmd,
1197 struct changer_element_status_request *cesr)
1198 {
1199 struct read_element_status_header *st_hdr;
1200 struct read_element_status_page_header *pg_hdr;
1201 struct read_element_status_descriptor *desc;
1202 caddr_t data = NULL;
1203 size_t size, desclen;
1204 int avail, i, error = 0;
1205 int curdata, dvcid, sense_flags;
1206 int try_no_dvcid = 0;
1207 struct changer_element_status *user_data = NULL;
1208 struct ch_softc *softc;
1209 union ccb *ccb;
1210 int chet = cesr->cesr_element_type;
1211 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1212
1213 softc = (struct ch_softc *)periph->softc;
1214
1215 /* perform argument checking */
1216
1217 /*
1218 * Perform a range check on the cesr_element_{base,count}
1219 * request argument fields.
1220 */
1221 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1222 || (cesr->cesr_element_base + cesr->cesr_element_count)
1223 > softc->sc_counts[chet])
1224 return (EINVAL);
1225
1226 /*
1227 * Request one descriptor for the given element type. This
1228 * is used to determine the size of the descriptor so that
1229 * we can allocate enough storage for all of them. We assume
1230 * that the first one can fit into 1k.
1231 */
1232 cam_periph_unlock(periph);
1233 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK);
1234
1235 cam_periph_lock(periph);
1236 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1237
1238 sense_flags = SF_RETRY_UA;
1239 if (softc->quirks & CH_Q_NO_DVCID) {
1240 dvcid = 0;
1241 curdata = 0;
1242 } else {
1243 dvcid = 1;
1244 curdata = 1;
1245 /*
1246 * Don't print anything for an Illegal Request, because
1247 * these flags can cause some changers to complain. We'll
1248 * retry without them if we get an error.
1249 */
1250 sense_flags |= SF_QUIET_IR;
1251 }
1252
1253 retry_einval:
1254
1255 scsi_read_element_status(&ccb->csio,
1256 /* retries */ 1,
1257 /* cbfcnp */ chdone,
1258 /* tag_action */ MSG_SIMPLE_Q_TAG,
1259 /* voltag */ want_voltags,
1260 /* sea */ softc->sc_firsts[chet],
1261 /* curdata */ curdata,
1262 /* dvcid */ dvcid,
1263 /* count */ 1,
1264 /* data_ptr */ data,
1265 /* dxfer_len */ 1024,
1266 /* sense_len */ SSD_FULL_SIZE,
1267 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1268
1269 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1270 /*sense_flags*/ sense_flags,
1271 softc->device_stats);
1272
1273 /*
1274 * An Illegal Request sense key (only used if there is no asc/ascq)
1275 * or 0x24,0x00 for an ASC/ASCQ both map to EINVAL. If dvcid or
1276 * curdata are set (we set both or neither), try turning them off
1277 * and see if the command is successful.
1278 */
1279 if ((error == EINVAL)
1280 && (dvcid || curdata)) {
1281 dvcid = 0;
1282 curdata = 0;
1283 error = 0;
1284 /* At this point we want to report any Illegal Request */
1285 sense_flags &= ~SF_QUIET_IR;
1286 try_no_dvcid = 1;
1287 goto retry_einval;
1288 }
1289
1290 /*
1291 * In this case, we tried a read element status with dvcid and
1292 * curdata set, and it failed. We retried without those bits, and
1293 * it succeeded. Suggest to the user that he set a quirk, so we
1294 * don't go through the retry process the first time in the future.
1295 * This should only happen on changers that claim SCSI-3 or higher,
1296 * but don't support these bits.
1297 */
1298 if ((try_no_dvcid != 0)
1299 && (error == 0))
1300 softc->quirks |= CH_Q_NO_DVCID;
1301
1302 if (error)
1303 goto done;
1304 cam_periph_unlock(periph);
1305
1306 st_hdr = (struct read_element_status_header *)data;
1307 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1308 sizeof(struct read_element_status_header));
1309 desclen = scsi_2btoul(pg_hdr->edl);
1310
1311 size = sizeof(struct read_element_status_header) +
1312 sizeof(struct read_element_status_page_header) +
1313 (desclen * cesr->cesr_element_count);
1314 /*
1315 * Reallocate storage for descriptors and get them from the
1316 * device.
1317 */
1318 free(data, M_DEVBUF);
1319 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK);
1320
1321 cam_periph_lock(periph);
1322 scsi_read_element_status(&ccb->csio,
1323 /* retries */ 1,
1324 /* cbfcnp */ chdone,
1325 /* tag_action */ MSG_SIMPLE_Q_TAG,
1326 /* voltag */ want_voltags,
1327 /* sea */ softc->sc_firsts[chet]
1328 + cesr->cesr_element_base,
1329 /* curdata */ curdata,
1330 /* dvcid */ dvcid,
1331 /* count */ cesr->cesr_element_count,
1332 /* data_ptr */ data,
1333 /* dxfer_len */ size,
1334 /* sense_len */ SSD_FULL_SIZE,
1335 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1336
1337 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1338 /*sense_flags*/ SF_RETRY_UA,
1339 softc->device_stats);
1340
1341 if (error)
1342 goto done;
1343 cam_periph_unlock(periph);
1344
1345 /*
1346 * Fill in the user status array.
1347 */
1348 st_hdr = (struct read_element_status_header *)data;
1349 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1350 sizeof(struct read_element_status_header));
1351 avail = scsi_2btoul(st_hdr->count);
1352
1353 if (avail != cesr->cesr_element_count) {
1354 xpt_print(periph->path,
1355 "warning, READ ELEMENT STATUS avail != count\n");
1356 }
1357
1358 user_data = (struct changer_element_status *)
1359 malloc(avail * sizeof(struct changer_element_status),
1360 M_DEVBUF, M_WAITOK | M_ZERO);
1361
1362 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1363 sizeof(struct read_element_status_header) +
1364 sizeof(struct read_element_status_page_header));
1365 /*
1366 * Set up the individual element status structures
1367 */
1368 for (i = 0; i < avail; ++i) {
1369 struct changer_element_status *ces;
1370
1371 /*
1372 * In the changer_element_status structure, fields from
1373 * the beginning to the field of ces_scsi_lun are common
1374 * between SCSI-2 and SCSI-3, while all the rest are new
1375 * from SCSI-3. In order to maintain backward compatibility
1376 * of the chio command, the ces pointer, below, is computed
1377 * such that it lines up with the structure boundary
1378 * corresponding to the SCSI version.
1379 */
1380 ces = cmd == OCHIOGSTATUS ?
1381 (struct changer_element_status *)
1382 ((unsigned char *)user_data + i *
1383 (offsetof(struct changer_element_status,ces_scsi_lun)+1)):
1384 &user_data[i];
1385
1386 copy_element_status(softc, pg_hdr->flags, desc,
1387 ces, scsi_version);
1388
1389 desc = (struct read_element_status_descriptor *)
1390 ((unsigned char *)desc + desclen);
1391 }
1392
1393 /* Copy element status structures out to userspace. */
1394 if (cmd == OCHIOGSTATUS)
1395 error = copyout(user_data,
1396 cesr->cesr_element_status,
1397 avail* (offsetof(struct changer_element_status,
1398 ces_scsi_lun) + 1));
1399 else
1400 error = copyout(user_data,
1401 cesr->cesr_element_status,
1402 avail * sizeof(struct changer_element_status));
1403
1404 cam_periph_lock(periph);
1405
1406 done:
1407 xpt_release_ccb(ccb);
1408
1409 if (data != NULL)
1410 free(data, M_DEVBUF);
1411 if (user_data != NULL)
1412 free(user_data, M_DEVBUF);
1413
1414 return (error);
1415 }
1416
1417 static int
chielem(struct cam_periph * periph,unsigned int timeout)1418 chielem(struct cam_periph *periph,
1419 unsigned int timeout)
1420 {
1421 union ccb *ccb;
1422 struct ch_softc *softc;
1423 int error;
1424
1425 if (!timeout) {
1426 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1427 } else {
1428 timeout *= 1000;
1429 }
1430
1431 error = 0;
1432 softc = (struct ch_softc *)periph->softc;
1433
1434 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1435
1436 scsi_initialize_element_status(&ccb->csio,
1437 /* retries */ 1,
1438 /* cbfcnp */ chdone,
1439 /* tag_action */ MSG_SIMPLE_Q_TAG,
1440 /* sense_len */ SSD_FULL_SIZE,
1441 /* timeout */ timeout);
1442
1443 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1444 /*sense_flags*/ SF_RETRY_UA,
1445 softc->device_stats);
1446
1447 xpt_release_ccb(ccb);
1448
1449 return(error);
1450 }
1451
1452 static int
chsetvoltag(struct cam_periph * periph,struct changer_set_voltag_request * csvr)1453 chsetvoltag(struct cam_periph *periph,
1454 struct changer_set_voltag_request *csvr)
1455 {
1456 union ccb *ccb;
1457 struct ch_softc *softc;
1458 u_int16_t ea;
1459 u_int8_t sac;
1460 struct scsi_send_volume_tag_parameters ssvtp;
1461 int error;
1462 int i;
1463
1464 error = 0;
1465 softc = (struct ch_softc *)periph->softc;
1466
1467 bzero(&ssvtp, sizeof(ssvtp));
1468 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1469 ssvtp.vitf[i] = ' ';
1470 }
1471
1472 /*
1473 * Check arguments.
1474 */
1475 if (csvr->csvr_type > CHET_DT)
1476 return EINVAL;
1477 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1478 return ENODEV;
1479
1480 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1481
1482 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1483 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1484 case CSVR_MODE_SET:
1485 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1486 break;
1487 case CSVR_MODE_REPLACE:
1488 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1489 break;
1490 case CSVR_MODE_CLEAR:
1491 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1492 break;
1493 default:
1494 error = EINVAL;
1495 goto out;
1496 }
1497 } else {
1498 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1499 case CSVR_MODE_SET:
1500 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1501 break;
1502 case CSVR_MODE_REPLACE:
1503 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1504 break;
1505 case CSVR_MODE_CLEAR:
1506 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1507 break;
1508 default:
1509 error = EINVAL;
1510 goto out;
1511 }
1512 }
1513
1514 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1515 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1516 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1517
1518 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1519
1520 scsi_send_volume_tag(&ccb->csio,
1521 /* retries */ 1,
1522 /* cbfcnp */ chdone,
1523 /* tag_action */ MSG_SIMPLE_Q_TAG,
1524 /* element_address */ ea,
1525 /* send_action_code */ sac,
1526 /* parameters */ &ssvtp,
1527 /* sense_len */ SSD_FULL_SIZE,
1528 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1529
1530 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1531 /*sense_flags*/ SF_RETRY_UA,
1532 softc->device_stats);
1533
1534 xpt_release_ccb(ccb);
1535
1536 out:
1537 return error;
1538 }
1539
1540 static int
chgetparams(struct cam_periph * periph)1541 chgetparams(struct cam_periph *periph)
1542 {
1543 union ccb *ccb;
1544 struct ch_softc *softc;
1545 void *mode_buffer;
1546 int mode_buffer_len;
1547 struct page_element_address_assignment *ea;
1548 struct page_device_capabilities *cap;
1549 int error, from, dbd;
1550 u_int8_t *moves, *exchanges;
1551
1552 error = 0;
1553
1554 softc = (struct ch_softc *)periph->softc;
1555
1556 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1557
1558 /*
1559 * The scsi_mode_sense_data structure is just a convenience
1560 * structure that allows us to easily calculate the worst-case
1561 * storage size of the mode sense buffer.
1562 */
1563 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1564
1565 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
1566
1567 if (mode_buffer == NULL) {
1568 printf("chgetparams: couldn't malloc mode sense data\n");
1569 xpt_release_ccb(ccb);
1570 return(ENOSPC);
1571 }
1572
1573 bzero(mode_buffer, mode_buffer_len);
1574
1575 if (softc->quirks & CH_Q_NO_DBD)
1576 dbd = FALSE;
1577 else
1578 dbd = TRUE;
1579
1580 /*
1581 * Get the element address assignment page.
1582 */
1583 scsi_mode_sense(&ccb->csio,
1584 /* retries */ 1,
1585 /* cbfcnp */ chdone,
1586 /* tag_action */ MSG_SIMPLE_Q_TAG,
1587 /* dbd */ dbd,
1588 /* pc */ SMS_PAGE_CTRL_CURRENT,
1589 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1590 /* param_buf */ (u_int8_t *)mode_buffer,
1591 /* param_len */ mode_buffer_len,
1592 /* sense_len */ SSD_FULL_SIZE,
1593 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1594
1595 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1596 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
1597 softc->device_stats);
1598
1599 if (error) {
1600 if (dbd) {
1601 struct scsi_mode_sense_6 *sms;
1602
1603 sms = (struct scsi_mode_sense_6 *)
1604 ccb->csio.cdb_io.cdb_bytes;
1605
1606 sms->byte2 &= ~SMS_DBD;
1607 error = cam_periph_runccb(ccb, cherror,
1608 /*cam_flags*/ CAM_RETRY_SELTO,
1609 /*sense_flags*/ SF_RETRY_UA,
1610 softc->device_stats);
1611 } else {
1612 /*
1613 * Since we disabled sense printing above, print
1614 * out the sense here since we got an error.
1615 */
1616 scsi_sense_print(&ccb->csio);
1617 }
1618
1619 if (error) {
1620 xpt_print(periph->path,
1621 "chgetparams: error getting element "
1622 "address page\n");
1623 xpt_release_ccb(ccb);
1624 free(mode_buffer, M_SCSICH);
1625 return(error);
1626 }
1627 }
1628
1629 ea = (struct page_element_address_assignment *)
1630 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1631
1632 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1633 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1634 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1635 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1636 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1637 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1638 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1639 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1640
1641 bzero(mode_buffer, mode_buffer_len);
1642
1643 /*
1644 * Now get the device capabilities page.
1645 */
1646 scsi_mode_sense(&ccb->csio,
1647 /* retries */ 1,
1648 /* cbfcnp */ chdone,
1649 /* tag_action */ MSG_SIMPLE_Q_TAG,
1650 /* dbd */ dbd,
1651 /* pc */ SMS_PAGE_CTRL_CURRENT,
1652 /* page */ CH_DEVICE_CAP_PAGE,
1653 /* param_buf */ (u_int8_t *)mode_buffer,
1654 /* param_len */ mode_buffer_len,
1655 /* sense_len */ SSD_FULL_SIZE,
1656 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1657
1658 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1659 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1660 softc->device_stats);
1661
1662 if (error) {
1663 if (dbd) {
1664 struct scsi_mode_sense_6 *sms;
1665
1666 sms = (struct scsi_mode_sense_6 *)
1667 ccb->csio.cdb_io.cdb_bytes;
1668
1669 sms->byte2 &= ~SMS_DBD;
1670 error = cam_periph_runccb(ccb, cherror,
1671 /*cam_flags*/ CAM_RETRY_SELTO,
1672 /*sense_flags*/ SF_RETRY_UA,
1673 softc->device_stats);
1674 } else {
1675 /*
1676 * Since we disabled sense printing above, print
1677 * out the sense here since we got an error.
1678 */
1679 scsi_sense_print(&ccb->csio);
1680 }
1681
1682 if (error) {
1683 xpt_print(periph->path,
1684 "chgetparams: error getting device "
1685 "capabilities page\n");
1686 xpt_release_ccb(ccb);
1687 free(mode_buffer, M_SCSICH);
1688 return(error);
1689 }
1690 }
1691
1692 xpt_release_ccb(ccb);
1693
1694 cap = (struct page_device_capabilities *)
1695 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1696
1697 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1698 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
1699 moves = cap->move_from;
1700 exchanges = cap->exchange_with;
1701 for (from = CHET_MT; from <= CHET_MAX; ++from) {
1702 softc->sc_movemask[from] = moves[from];
1703 softc->sc_exchangemask[from] = exchanges[from];
1704 }
1705
1706 free(mode_buffer, M_SCSICH);
1707
1708 return(error);
1709 }
1710
1711 static int
chscsiversion(struct cam_periph * periph)1712 chscsiversion(struct cam_periph *periph)
1713 {
1714 struct scsi_inquiry_data *inq_data;
1715 struct ccb_getdev *cgd;
1716 int dev_scsi_version;
1717
1718 cam_periph_assert(periph, MA_OWNED);
1719 if ((cgd = (struct ccb_getdev *)xpt_alloc_ccb_nowait()) == NULL)
1720 return (-1);
1721 /*
1722 * Get the device information.
1723 */
1724 xpt_setup_ccb(&cgd->ccb_h,
1725 periph->path,
1726 CAM_PRIORITY_NORMAL);
1727 cgd->ccb_h.func_code = XPT_GDEV_TYPE;
1728 xpt_action((union ccb *)cgd);
1729
1730 if (cgd->ccb_h.status != CAM_REQ_CMP) {
1731 xpt_free_ccb((union ccb *)cgd);
1732 return -1;
1733 }
1734
1735 inq_data = &cgd->inq_data;
1736 dev_scsi_version = inq_data->version;
1737 xpt_free_ccb((union ccb *)cgd);
1738
1739 return dev_scsi_version;
1740 }
1741
1742 void
scsi_move_medium(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int32_t tea,u_int32_t src,u_int32_t dst,int invert,u_int8_t sense_len,u_int32_t timeout)1743 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
1744 void (*cbfcnp)(struct cam_periph *, union ccb *),
1745 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1746 u_int32_t dst, int invert, u_int8_t sense_len,
1747 u_int32_t timeout)
1748 {
1749 struct scsi_move_medium *scsi_cmd;
1750
1751 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1752 bzero(scsi_cmd, sizeof(*scsi_cmd));
1753
1754 scsi_cmd->opcode = MOVE_MEDIUM;
1755
1756 scsi_ulto2b(tea, scsi_cmd->tea);
1757 scsi_ulto2b(src, scsi_cmd->src);
1758 scsi_ulto2b(dst, scsi_cmd->dst);
1759
1760 if (invert)
1761 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1762
1763 cam_fill_csio(csio,
1764 retries,
1765 cbfcnp,
1766 /*flags*/ CAM_DIR_NONE,
1767 tag_action,
1768 /*data_ptr*/ NULL,
1769 /*dxfer_len*/ 0,
1770 sense_len,
1771 sizeof(*scsi_cmd),
1772 timeout);
1773 }
1774
1775 void
scsi_exchange_medium(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int32_t tea,u_int32_t src,u_int32_t dst1,u_int32_t dst2,int invert1,int invert2,u_int8_t sense_len,u_int32_t timeout)1776 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
1777 void (*cbfcnp)(struct cam_periph *, union ccb *),
1778 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1779 u_int32_t dst1, u_int32_t dst2, int invert1,
1780 int invert2, u_int8_t sense_len, u_int32_t timeout)
1781 {
1782 struct scsi_exchange_medium *scsi_cmd;
1783
1784 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1785 bzero(scsi_cmd, sizeof(*scsi_cmd));
1786
1787 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1788
1789 scsi_ulto2b(tea, scsi_cmd->tea);
1790 scsi_ulto2b(src, scsi_cmd->src);
1791 scsi_ulto2b(dst1, scsi_cmd->fdst);
1792 scsi_ulto2b(dst2, scsi_cmd->sdst);
1793
1794 if (invert1)
1795 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1796
1797 if (invert2)
1798 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1799
1800 cam_fill_csio(csio,
1801 retries,
1802 cbfcnp,
1803 /*flags*/ CAM_DIR_NONE,
1804 tag_action,
1805 /*data_ptr*/ NULL,
1806 /*dxfer_len*/ 0,
1807 sense_len,
1808 sizeof(*scsi_cmd),
1809 timeout);
1810 }
1811
1812 void
scsi_position_to_element(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int32_t tea,u_int32_t dst,int invert,u_int8_t sense_len,u_int32_t timeout)1813 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
1814 void (*cbfcnp)(struct cam_periph *, union ccb *),
1815 u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
1816 int invert, u_int8_t sense_len, u_int32_t timeout)
1817 {
1818 struct scsi_position_to_element *scsi_cmd;
1819
1820 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1821 bzero(scsi_cmd, sizeof(*scsi_cmd));
1822
1823 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1824
1825 scsi_ulto2b(tea, scsi_cmd->tea);
1826 scsi_ulto2b(dst, scsi_cmd->dst);
1827
1828 if (invert)
1829 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1830
1831 cam_fill_csio(csio,
1832 retries,
1833 cbfcnp,
1834 /*flags*/ CAM_DIR_NONE,
1835 tag_action,
1836 /*data_ptr*/ NULL,
1837 /*dxfer_len*/ 0,
1838 sense_len,
1839 sizeof(*scsi_cmd),
1840 timeout);
1841 }
1842
1843 void
scsi_read_element_status(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,int voltag,u_int32_t sea,int curdata,int dvcid,u_int32_t count,u_int8_t * data_ptr,u_int32_t dxfer_len,u_int8_t sense_len,u_int32_t timeout)1844 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1845 void (*cbfcnp)(struct cam_periph *, union ccb *),
1846 u_int8_t tag_action, int voltag, u_int32_t sea,
1847 int curdata, int dvcid,
1848 u_int32_t count, u_int8_t *data_ptr,
1849 u_int32_t dxfer_len, u_int8_t sense_len,
1850 u_int32_t timeout)
1851 {
1852 struct scsi_read_element_status *scsi_cmd;
1853
1854 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1855 bzero(scsi_cmd, sizeof(*scsi_cmd));
1856
1857 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1858
1859 scsi_ulto2b(sea, scsi_cmd->sea);
1860 scsi_ulto2b(count, scsi_cmd->count);
1861 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1862 if (dvcid)
1863 scsi_cmd->flags |= READ_ELEMENT_STATUS_DVCID;
1864 if (curdata)
1865 scsi_cmd->flags |= READ_ELEMENT_STATUS_CURDATA;
1866
1867 if (voltag)
1868 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1869
1870 cam_fill_csio(csio,
1871 retries,
1872 cbfcnp,
1873 /*flags*/ CAM_DIR_IN,
1874 tag_action,
1875 data_ptr,
1876 dxfer_len,
1877 sense_len,
1878 sizeof(*scsi_cmd),
1879 timeout);
1880 }
1881
1882 void
scsi_initialize_element_status(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int8_t sense_len,u_int32_t timeout)1883 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1884 void (*cbfcnp)(struct cam_periph *, union ccb *),
1885 u_int8_t tag_action, u_int8_t sense_len,
1886 u_int32_t timeout)
1887 {
1888 struct scsi_initialize_element_status *scsi_cmd;
1889
1890 scsi_cmd = (struct scsi_initialize_element_status *)
1891 &csio->cdb_io.cdb_bytes;
1892 bzero(scsi_cmd, sizeof(*scsi_cmd));
1893
1894 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1895
1896 cam_fill_csio(csio,
1897 retries,
1898 cbfcnp,
1899 /*flags*/ CAM_DIR_NONE,
1900 tag_action,
1901 /* data_ptr */ NULL,
1902 /* dxfer_len */ 0,
1903 sense_len,
1904 sizeof(*scsi_cmd),
1905 timeout);
1906 }
1907
1908 void
scsi_send_volume_tag(struct ccb_scsiio * csio,u_int32_t retries,void (* cbfcnp)(struct cam_periph *,union ccb *),u_int8_t tag_action,u_int16_t element_address,u_int8_t send_action_code,struct scsi_send_volume_tag_parameters * parameters,u_int8_t sense_len,u_int32_t timeout)1909 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
1910 void (*cbfcnp)(struct cam_periph *, union ccb *),
1911 u_int8_t tag_action,
1912 u_int16_t element_address,
1913 u_int8_t send_action_code,
1914 struct scsi_send_volume_tag_parameters *parameters,
1915 u_int8_t sense_len, u_int32_t timeout)
1916 {
1917 struct scsi_send_volume_tag *scsi_cmd;
1918
1919 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1920 bzero(scsi_cmd, sizeof(*scsi_cmd));
1921
1922 scsi_cmd->opcode = SEND_VOLUME_TAG;
1923 scsi_ulto2b(element_address, scsi_cmd->ea);
1924 scsi_cmd->sac = send_action_code;
1925 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1926
1927 cam_fill_csio(csio,
1928 retries,
1929 cbfcnp,
1930 /*flags*/ CAM_DIR_OUT,
1931 tag_action,
1932 /* data_ptr */ (u_int8_t *) parameters,
1933 sizeof(*parameters),
1934 sense_len,
1935 sizeof(*scsi_cmd),
1936 timeout);
1937 }
1938