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DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()
[dragonfly.git] / sys / bus / cam / scsi / scsi_ch.c
CommitLineData
984263bc
MD		 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 * $FreeBSD: src/sys/cam/scsi/scsi_ch.c,v 1.20.2.2 2000/10/31 08:09:49 dwmalone Exp $
2d19cdd3 28 * $DragonFly: src/sys/bus/cam/scsi/scsi_ch.c,v 1.28 2008/07/18 00:07:23 dillon Exp $
984263bc
MD		 29 */
30/*
31 * Derived from the NetBSD SCSI changer driver.
32 *
33 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $
34 *
35 */
36/*
37 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
38 * All rights reserved.
39 *
40 * Partially based on an autochanger driver written by Stefan Grefen
41 * and on an autochanger driver written by the Systems Programming Group
42 * at the University of Utah Computer Science Department.
43 *
44 * Redistribution and use in source and binary forms, with or without
45 * modification, are permitted provided that the following conditions
46 * are met:
47 * 1. Redistributions of source code must retain the above copyright
48 * notice, this list of conditions and the following disclaimer.
49 * 2. Redistributions in binary form must reproduce the above copyright
50 * notice, this list of conditions and the following disclaimer in the
51 * documentation and/or other materials provided with the distribution.
52 * 3. All advertising materials mentioning features or use of this software
53 * must display the following acknowledgements:
54 * This product includes software developed by Jason R. Thorpe
55 * for And Communications, http://www.and.com/
56 * 4. The name of the author may not be used to endorse or promote products
57 * derived from this software without specific prior written permission.
58 *
59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
64 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
65 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
66 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
67 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
69 * SUCH DAMAGE.
70 */
71
72#include <sys/param.h>
73#include <sys/queue.h>
74#include <sys/systm.h>
75#include <sys/kernel.h>
76#include <sys/types.h>
77#include <sys/malloc.h>
78#include <sys/fcntl.h>
984263bc
MD		 79#include <sys/conf.h>
80#include <sys/buf.h>
81#include <sys/chio.h>
82#include <sys/errno.h>
83#include <sys/devicestat.h>
4e01b467 84#include <sys/thread2.h>
984263bc 85
1f2de5d4
MD		 86#include "../cam.h"
87#include "../cam_ccb.h"
88#include "../cam_extend.h"
89#include "../cam_periph.h"
90#include "../cam_xpt_periph.h"
91#include "../cam_queue.h"
92#include "../cam_debug.h"
984263bc 93
1f2de5d4
MD		 94#include "scsi_all.h"
95#include "scsi_message.h"
96#include "scsi_ch.h"
984263bc
MD		 97
98/*
99 * Timeout definitions for various changer related commands. They may
100 * be too short for some devices (especially the timeout for INITIALIZE
101 * ELEMENT STATUS).
102 */
103
104static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000;
105static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000;
106static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000;
107static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000;
108static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000;
109static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
110static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
111
112typedef enum {
113 CH_FLAG_INVALID = 0x001,
114 CH_FLAG_OPEN = 0x002
115} ch_flags;
116
117typedef enum {
118 CH_STATE_PROBE,
119 CH_STATE_NORMAL
120} ch_state;
121
122typedef enum {
123 CH_CCB_PROBE,
124 CH_CCB_WAITING
125} ch_ccb_types;
126
127typedef enum {
128 CH_Q_NONE = 0x00,
129 CH_Q_NO_DBD = 0x01
130} ch_quirks;
131
132#define ccb_state ppriv_field0
81b5c339 133#define ccb_bio ppriv_ptr1
984263bc
MD		 134
135struct scsi_mode_sense_data {
136 struct scsi_mode_header_6 header;
137 struct scsi_mode_blk_desc blk_desc;
138 union {
139 struct page_element_address_assignment ea;
140 struct page_transport_geometry_parameters tg;
141 struct page_device_capabilities cap;
142 } pages;
143};
144
145struct ch_softc {
146 ch_flags flags;
147 ch_state state;
148 ch_quirks quirks;
149 union ccb saved_ccb;
150 struct devstat device_stats;
984263bc
MD		 151
152 int sc_picker; /* current picker */
153
154 /*
155 * The following information is obtained from the
156 * element address assignment page.
157 */
31525cf2
PA		 158 int sc_firsts[CHET_MAX + 1]; /* firsts */
159 int sc_counts[CHET_MAX + 1]; /* counts */
984263bc
MD		 160
161 /*
162 * The following mask defines the legal combinations
163 * of elements for the MOVE MEDIUM command.
164 */
31525cf2 165 u_int8_t sc_movemask[CHET_MAX + 1];
984263bc
MD		 166
167 /*
168 * As above, but for EXCHANGE MEDIUM.
169 */
31525cf2 170 u_int8_t sc_exchangemask[CHET_MAX + 1];
984263bc
MD		 171
172 /*
173 * Quirks; see below. XXX KDM not implemented yet
174 */
175 int sc_settledelay; /* delay for settle */
176};
177
178#define CHUNIT(x) (minor((x)))
179#define CH_CDEV_MAJOR 17
180
181static d_open_t chopen;
182static d_close_t chclose;
183static d_ioctl_t chioctl;
184static periph_init_t chinit;
185static periph_ctor_t chregister;
186static periph_oninv_t choninvalidate;
187static periph_dtor_t chcleanup;
188static periph_start_t chstart;
189static void chasync(void *callback_arg, u_int32_t code,
190 struct cam_path *path, void *arg);
191static void chdone(struct cam_periph *periph,
192 union ccb *done_ccb);
193static int cherror(union ccb *ccb, u_int32_t cam_flags,
194 u_int32_t sense_flags);
195static int chmove(struct cam_periph *periph,
196 struct changer_move *cm);
197static int chexchange(struct cam_periph *periph,
198 struct changer_exchange *ce);
199static int chposition(struct cam_periph *periph,
200 struct changer_position *cp);
201static int chgetelemstatus(struct cam_periph *periph,
202 struct changer_element_status_request *csr);
203static int chsetvoltag(struct cam_periph *periph,
204 struct changer_set_voltag_request *csvr);
205static int chielem(struct cam_periph *periph,
206 unsigned int timeout);
207static int chgetparams(struct cam_periph *periph);
208
209static struct periph_driver chdriver =
210{
211 chinit, "ch",
212 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
213};
214
2ad14cb5 215PERIPHDRIVER_DECLARE(ch, chdriver);
984263bc 216
fef8985e
MD		 217static struct dev_ops ch_ops = {
218 { "ch", CH_CDEV_MAJOR, 0 },
219 .d_open = chopen,
220 .d_close = chclose,
221 .d_ioctl = chioctl
984263bc
MD		 222};
223
224static struct extend_array *chperiphs;
225
1c8b7a9a
PA		 226MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
227
fb2e6209 228static void
984263bc
MD		 229chinit(void)
230{
231 cam_status status;
984263bc
MD		 232
233 /*
234 * Create our extend array for storing the devices we attach to.
235 */
236 chperiphs = cam_extend_new();
237 if (chperiphs == NULL) {
85f8e2ea 238 kprintf("ch: Failed to alloc extend array!\n");
984263bc
MD		 239 return;
240 }
241
242 /*
243 * Install a global async callback. This callback will
244 * receive async callbacks like "new device found".
245 */
1c8b7a9a 246 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
984263bc
MD		 247
248 if (status != CAM_REQ_CMP) {
85f8e2ea 249 kprintf("ch: Failed to attach master async callback "
984263bc
MD		 250 "due to status 0x%x!\n", status);
251 }
252}
253
254static void
255choninvalidate(struct cam_periph *periph)
256{
257 struct ch_softc *softc;
984263bc
MD		 258
259 softc = (struct ch_softc *)periph->softc;
260
261 /*
262 * De-register any async callbacks.
263 */
1c8b7a9a 264 xpt_register_async(0, chasync, periph, periph->path);
984263bc
MD		 265
266 softc->flags |= CH_FLAG_INVALID;
267
1c8b7a9a 268 xpt_print(periph->path, "lost device\n");
984263bc
MD		 269
270}
271
272static void
273chcleanup(struct cam_periph *periph)
274{
275 struct ch_softc *softc;
276
277 softc = (struct ch_softc *)periph->softc;
278
279 devstat_remove_entry(&softc->device_stats);
984263bc 280 cam_extend_release(chperiphs, periph->unit_number);
1c8b7a9a 281 xpt_print(periph->path, "removing device entry\n");
cd29885a 282 dev_ops_remove_minor(&ch_ops, periph->unit_number);
efda3bd0 283 kfree(softc, M_DEVBUF);
984263bc
MD		 284}
285
286static void
287chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
288{
289 struct cam_periph *periph;
290
291 periph = (struct cam_periph *)callback_arg;
292
293 switch(code) {
294 case AC_FOUND_DEVICE:
295 {
296 struct ccb_getdev *cgd;
297 cam_status status;
298
299 cgd = (struct ccb_getdev *)arg;
e9936c96
PA		 300 if (cgd == NULL)
301 break;
984263bc
MD		 302
303 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
304 break;
305
306 /*
307 * Allocate a peripheral instance for
308 * this device and start the probe
309 * process.
310 */
311 status = cam_periph_alloc(chregister, choninvalidate,
312 chcleanup, chstart, "ch",
313 CAM_PERIPH_BIO, cgd->ccb_h.path,
314 chasync, AC_FOUND_DEVICE, cgd);
315
316 if (status != CAM_REQ_CMP
317 && status != CAM_REQ_INPROG)
85f8e2ea 318 kprintf("chasync: Unable to probe new device "
984263bc
MD		 319 "due to status 0x%x\n", status);
320
321 break;
322
323 }
324 default:
325 cam_periph_async(periph, code, path, arg);
326 break;
327 }
328}
329
330static cam_status
331chregister(struct cam_periph *periph, void *arg)
332{
333 struct ch_softc *softc;
984263bc
MD		 334 struct ccb_getdev *cgd;
335
336 cgd = (struct ccb_getdev *)arg;
337 if (periph == NULL) {
85f8e2ea 338 kprintf("chregister: periph was NULL!!\n");
984263bc
MD		 339 return(CAM_REQ_CMP_ERR);
340 }
341
342 if (cgd == NULL) {
85f8e2ea 343 kprintf("chregister: no getdev CCB, can't register device\n");
984263bc
MD		 344 return(CAM_REQ_CMP_ERR);
345 }
346
efda3bd0 347 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
984263bc
MD		 348 softc->state = CH_STATE_PROBE;
349 periph->softc = softc;
350 cam_extend_set(chperiphs, periph->unit_number, periph);
351 softc->quirks = CH_Q_NONE;
352
353 /*
354 * Changers don't have a blocksize, and obviously don't support
355 * tagged queueing.
356 */
1c8b7a9a 357 cam_periph_unlock(periph);
984263bc
MD		 358 devstat_add_entry(&softc->device_stats, "ch",
359 periph->unit_number, 0,
360 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
361 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI,
362 DEVSTAT_PRIORITY_OTHER);
363
364 /* Register the device */
fef8985e 365 make_dev(&ch_ops, periph->unit_number, UID_ROOT,
e4c9c0c8
MD		 366 GID_OPERATOR, 0600, "%s%d", periph->periph_name,
367 periph->unit_number);
1c8b7a9a 368 cam_periph_lock(periph);
984263bc
MD		 369
370 /*
371 * Add an async callback so that we get
372 * notified if this device goes away.
373 */
1c8b7a9a 374 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
984263bc
MD		 375
376 /*
1c8b7a9a 377 * Lock this periph until we are setup.
984263bc
MD		 378 * This first call can't block
379 */
1c8b7a9a 380 cam_periph_hold(periph, 0);
984263bc
MD		 381 xpt_schedule(periph, /*priority*/5);
382
383 return(CAM_REQ_CMP);
384}
385
386static int
fef8985e 387chopen(struct dev_open_args *ap)
984263bc 388{
b13267a5 389 cdev_t dev = ap->a_head.a_dev;
984263bc
MD		 390 struct cam_periph *periph;
391 struct ch_softc *softc;
392 int unit, error;
984263bc
MD		 393
394 unit = CHUNIT(dev);
395 periph = cam_extend_get(chperiphs, unit);
396
1c8b7a9a
PA		 397 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
398 return (ENXIO);
984263bc
MD		 399
400 softc = (struct ch_softc *)periph->softc;
401
1c8b7a9a
PA		 402 cam_periph_lock(periph);
403
984263bc 404 if (softc->flags & CH_FLAG_INVALID) {
1c8b7a9a
PA		 405 cam_periph_unlock(periph);
406 cam_periph_release(periph);
984263bc
MD		 407 return(ENXIO);
408 }
409
1c8b7a9a 410 if ((softc->flags & CH_FLAG_OPEN) == 0)
984263bc 411 softc->flags |= CH_FLAG_OPEN;
1c8b7a9a
PA		 412 else
413 cam_periph_release(periph);
414
415 if ((error = cam_periph_hold(periph, PCATCH)) != 0) {
416 cam_periph_unlock(periph);
417 cam_periph_release(periph);
418 return (error);
984263bc
MD		 419 }
420
421 /*
422 * Load information about this changer device into the softc.
423 */
424 if ((error = chgetparams(periph)) != 0) {
425 softc->flags &= ~CH_FLAG_OPEN;
2d19cdd3 426 cam_periph_unhold(periph, 1);
984263bc 427 cam_periph_release(periph);
2d19cdd3
MD		 428 } else {
429 cam_periph_unhold(periph, 1);
984263bc
MD		 430 }
431
984263bc
MD		 432 return(error);
433}
434
435static int
fef8985e 436chclose(struct dev_close_args *ap)
984263bc 437{
b13267a5 438 cdev_t dev = ap->a_head.a_dev;
984263bc
MD		 439 struct cam_periph *periph;
440 struct ch_softc *softc;
441 int unit, error;
442
443 error = 0;
444
445 unit = CHUNIT(dev);
446 periph = cam_extend_get(chperiphs, unit);
447 if (periph == NULL)
448 return(ENXIO);
449
450 softc = (struct ch_softc *)periph->softc;
451
1c8b7a9a 452 cam_periph_lock(periph);
984263bc
MD		 453
454 softc->flags &= ~CH_FLAG_OPEN;
455
456 cam_periph_unlock(periph);
457 cam_periph_release(periph);
458
459 return(0);
460}
461
462static void
463chstart(struct cam_periph *periph, union ccb *start_ccb)
464{
465 struct ch_softc *softc;
984263bc
MD		 466
467 softc = (struct ch_softc *)periph->softc;
468
469 switch (softc->state) {
470 case CH_STATE_NORMAL:
471 {
984263bc
MD		 472 if (periph->immediate_priority <= periph->pinfo.priority){
473 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING;
474
475 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
476 periph_links.sle);
477 periph->immediate_priority = CAM_PRIORITY_NONE;
984263bc 478 wakeup(&periph->ccb_list);
4e01b467 479 }
984263bc
MD		 480 break;
481 }
482 case CH_STATE_PROBE:
483 {
484 int mode_buffer_len;
485 void *mode_buffer;
486
487 /*
488 * Include the block descriptor when calculating the mode
489 * buffer length,
490 */
491 mode_buffer_len = sizeof(struct scsi_mode_header_6) +
492 sizeof(struct scsi_mode_blk_desc) +
493 sizeof(struct page_element_address_assignment);
494
1c8b7a9a 495 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO);
984263bc
MD		 496 /*
497 * Get the element address assignment page.
498 */
499 scsi_mode_sense(&start_ccb->csio,
500 /* retries */ 1,
501 /* cbfcnp */ chdone,
502 /* tag_action */ MSG_SIMPLE_Q_TAG,
503 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
504 FALSE : TRUE,
505 /* page_code */ SMS_PAGE_CTRL_CURRENT,
506 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
507 /* param_buf */ (u_int8_t *)mode_buffer,
508 /* param_len */ mode_buffer_len,
509 /* sense_len */ SSD_FULL_SIZE,
510 /* timeout */ CH_TIMEOUT_MODE_SENSE);
511
81b5c339 512 start_ccb->ccb_h.ccb_bio = NULL;
984263bc
MD		 513 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
514 xpt_action(start_ccb);
515 break;
516 }
517 }
518}
519
520static void
521chdone(struct cam_periph *periph, union ccb *done_ccb)
522{
523 struct ch_softc *softc;
524 struct ccb_scsiio *csio;
525
526 softc = (struct ch_softc *)periph->softc;
527 csio = &done_ccb->csio;
528
529 switch(done_ccb->ccb_h.ccb_state) {
530 case CH_CCB_PROBE:
531 {
532 struct scsi_mode_header_6 *mode_header;
533 struct page_element_address_assignment *ea;
534 char announce_buf[80];
535
536
537 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
538
539 ea = (struct page_element_address_assignment *)
540 find_mode_page_6(mode_header);
541
542 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
543
544 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
545 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
546 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
547 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
548 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
549 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
550 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
551 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
552 softc->sc_picker = softc->sc_firsts[CHET_MT];
553
554#define PLURAL(c) (c) == 1 ? "" : "s"
f8c7a42d 555 ksnprintf(announce_buf, sizeof(announce_buf),
984263bc
MD		 556 "%d slot%s, %d drive%s, "
557 "%d picker%s, %d portal%s",
558 softc->sc_counts[CHET_ST],
559 PLURAL(softc->sc_counts[CHET_ST]),
560 softc->sc_counts[CHET_DT],
561 PLURAL(softc->sc_counts[CHET_DT]),
562 softc->sc_counts[CHET_MT],
563 PLURAL(softc->sc_counts[CHET_MT]),
564 softc->sc_counts[CHET_IE],
565 PLURAL(softc->sc_counts[CHET_IE]));
566#undef PLURAL
567 } else {
568 int error;
569
b05e84c9
PA		 570 error = cherror(done_ccb, CAM_RETRY_SELTO,
571 SF_RETRY_UA | SF_NO_PRINT);
984263bc
MD		 572 /*
573 * Retry any UNIT ATTENTION type errors. They
574 * are expected at boot.
575 */
576 if (error == ERESTART) {
577 /*
578 * A retry was scheuled, so
579 * just return.
580 */
581 return;
582 } else if (error != 0) {
583 int retry_scheduled;
584 struct scsi_mode_sense_6 *sms;
585
586 sms = (struct scsi_mode_sense_6 *)
587 done_ccb->csio.cdb_io.cdb_bytes;
588
589 /*
590 * Check to see if block descriptors were
591 * disabled. Some devices don't like that.
592 * We're taking advantage of the fact that
593 * the first few bytes of the 6 and 10 byte
594 * mode sense commands are the same. If
595 * block descriptors were disabled, enable
596 * them and re-send the command.
597 */
598 if (sms->byte2 & SMS_DBD) {
599 sms->byte2 &= ~SMS_DBD;
600 xpt_action(done_ccb);
601 softc->quirks |= CH_Q_NO_DBD;
602 retry_scheduled = 1;
603 } else
604 retry_scheduled = 0;
605
606 /* Don't wedge this device's queue */
607 cam_release_devq(done_ccb->ccb_h.path,
608 /*relsim_flags*/0,
609 /*reduction*/0,
610 /*timeout*/0,
611 /*getcount_only*/0);
612
613 if (retry_scheduled)
614 return;
615
616 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
617 == CAM_SCSI_STATUS_ERROR)
618 scsi_sense_print(&done_ccb->csio);
619 else {
1c8b7a9a
PA		 620 xpt_print(periph->path,
621 "got CAM status %#x\n",
622 done_ccb->ccb_h.status);
984263bc 623 }
1c8b7a9a
PA		 624 xpt_print(periph->path, "fatal error, failed "
625 "to attach to device\n");
984263bc
MD		 626
627 cam_periph_invalidate(periph);
628
629 announce_buf[0] = '\0';
630 }
631 }
632 if (announce_buf[0] != '\0')
633 xpt_announce_periph(periph, announce_buf);
634 softc->state = CH_STATE_NORMAL;
1c8b7a9a 635 kfree(mode_header, M_SCSICH);
984263bc
MD		 636 /*
637 * Since our peripheral may be invalidated by an error
638 * above or an external event, we must release our CCB
639 * before releasing the probe lock on the peripheral.
640 * The peripheral will only go away once the last lock
641 * is removed, and we need it around for the CCB release
642 * operation.
643 */
644 xpt_release_ccb(done_ccb);
2d19cdd3 645 cam_periph_unhold(periph, 0);
984263bc
MD		 646 return;
647 }
648 case CH_CCB_WAITING:
649 {
650 /* Caller will release the CCB */
651 wakeup(&done_ccb->ccb_h.cbfcnp);
652 return;
653 }
654 default:
655 break;
656 }
657 xpt_release_ccb(done_ccb);
658}
659
660static int
661cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
662{
663 struct ch_softc *softc;
664 struct cam_periph *periph;
665
666 periph = xpt_path_periph(ccb->ccb_h.path);
667 softc = (struct ch_softc *)periph->softc;
668
669 return (cam_periph_error(ccb, cam_flags, sense_flags,
670 &softc->saved_ccb));
671}
672
673static int
fef8985e 674chioctl(struct dev_ioctl_args *ap)
984263bc 675{
b13267a5 676 cdev_t dev = ap->a_head.a_dev;
fef8985e
MD		 677 caddr_t addr = ap->a_data;
678 int flag = ap->a_fflag;
984263bc
MD		 679 struct cam_periph *periph;
680 struct ch_softc *softc;
681 u_int8_t unit;
682 int error;
683
684 unit = CHUNIT(dev);
685
686 periph = cam_extend_get(chperiphs, unit);
687 if (periph == NULL)
688 return(ENXIO);
689
1c8b7a9a 690 cam_periph_lock(periph);
984263bc
MD		 691 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
692
693 softc = (struct ch_softc *)periph->softc;
694
695 error = 0;
696
697 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
fef8985e 698 ("trying to do ioctl %#lx\n", ap->a_cmd));
984263bc
MD		 699
700 /*
701 * If this command can change the device's state, we must
702 * have the device open for writing.
703 */
fef8985e 704 switch (ap->a_cmd) {
984263bc
MD		 705 case CHIOGPICKER:
706 case CHIOGPARAMS:
707 case CHIOGSTATUS:
708 break;
709
710 default:
1c8b7a9a
PA		 711 if ((flag & FWRITE) == 0) {
712 cam_periph_unlock(periph);
984263bc 713 return (EBADF);
1c8b7a9a 714 }
984263bc
MD		 715 }
716
fef8985e 717 switch (ap->a_cmd) {
984263bc
MD		 718 case CHIOMOVE:
719 error = chmove(periph, (struct changer_move *)addr);
720 break;
721
722 case CHIOEXCHANGE:
723 error = chexchange(periph, (struct changer_exchange *)addr);
724 break;
725
726 case CHIOPOSITION:
727 error = chposition(periph, (struct changer_position *)addr);
728 break;
729
730 case CHIOGPICKER:
731 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
732 break;
733
734 case CHIOSPICKER:
735 {
736 int new_picker = *(int *)addr;
737
1c8b7a9a
PA		 738 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
739 error = EINVAL;
740 break;
741 }
984263bc
MD		 742 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
743 break;
744 }
745 case CHIOGPARAMS:
746 {
747 struct changer_params *cp = (struct changer_params *)addr;
748
749 cp->cp_npickers = softc->sc_counts[CHET_MT];
750 cp->cp_nslots = softc->sc_counts[CHET_ST];
751 cp->cp_nportals = softc->sc_counts[CHET_IE];
752 cp->cp_ndrives = softc->sc_counts[CHET_DT];
753 break;
754 }
755 case CHIOIELEM:
756 error = chielem(periph, *(unsigned int *)addr);
757 break;
758
759 case CHIOGSTATUS:
760 {
761 error = chgetelemstatus(periph,
762 (struct changer_element_status_request *) addr);
763 break;
764 }
765
766 case CHIOSETVOLTAG:
767 {
768 error = chsetvoltag(periph,
769 (struct changer_set_voltag_request *) addr);
770 break;
771 }
772
773 /* Implement prevent/allow? */
774
775 default:
fef8985e 776 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror);
984263bc
MD		 777 break;
778 }
779
1c8b7a9a 780 cam_periph_unlock(periph);
984263bc
MD		 781 return (error);
782}
783
784static int
785chmove(struct cam_periph *periph, struct changer_move *cm)
786{
787 struct ch_softc *softc;
788 u_int16_t fromelem, toelem;
789 union ccb *ccb;
790 int error;
791
792 error = 0;
793 softc = (struct ch_softc *)periph->softc;
794
795 /*
796 * Check arguments.
797 */
798 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
799 return (EINVAL);
800 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
801 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
802 return (ENODEV);
803
804 /*
805 * Check the request against the changer's capabilities.
806 */
807 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
808 return (ENODEV);
809
810 /*
811 * Calculate the source and destination elements.
812 */
813 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
814 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
815
816 ccb = cam_periph_getccb(periph, /*priority*/ 1);
817
818 scsi_move_medium(&ccb->csio,
819 /* retries */ 1,
820 /* cbfcnp */ chdone,
821 /* tag_action */ MSG_SIMPLE_Q_TAG,
822 /* tea */ softc->sc_picker,
823 /* src */ fromelem,
824 /* dst */ toelem,
825 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
826 /* sense_len */ SSD_FULL_SIZE,
827 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
828
b05e84c9
PA		 829 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
830 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 831 &softc->device_stats);
832
833 xpt_release_ccb(ccb);
834
835 return(error);
836}
837
838static int
839chexchange(struct cam_periph *periph, struct changer_exchange *ce)
840{
841 struct ch_softc *softc;
842 u_int16_t src, dst1, dst2;
843 union ccb *ccb;
844 int error;
845
846 error = 0;
847 softc = (struct ch_softc *)periph->softc;
848 /*
849 * Check arguments.
850 */
851 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
852 (ce->ce_sdsttype > CHET_DT))
853 return (EINVAL);
854 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
855 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
856 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
857 return (ENODEV);
858
859 /*
860 * Check the request against the changer's capabilities.
861 */
862 if (((softc->sc_exchangemask[ce->ce_srctype] &
863 (1 << ce->ce_fdsttype)) == 0) ||
864 ((softc->sc_exchangemask[ce->ce_fdsttype] &
865 (1 << ce->ce_sdsttype)) == 0))
866 return (ENODEV);
867
868 /*
869 * Calculate the source and destination elements.
870 */
871 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
872 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
873 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
874
875 ccb = cam_periph_getccb(periph, /*priority*/ 1);
876
877 scsi_exchange_medium(&ccb->csio,
878 /* retries */ 1,
879 /* cbfcnp */ chdone,
880 /* tag_action */ MSG_SIMPLE_Q_TAG,
881 /* tea */ softc->sc_picker,
882 /* src */ src,
883 /* dst1 */ dst1,
884 /* dst2 */ dst2,
885 /* invert1 */ (ce->ce_flags & CE_INVERT1) ?
886 TRUE : FALSE,
887 /* invert2 */ (ce->ce_flags & CE_INVERT2) ?
888 TRUE : FALSE,
889 /* sense_len */ SSD_FULL_SIZE,
890 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
891
b05e84c9
PA		 892 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
893 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 894 &softc->device_stats);
895
896 xpt_release_ccb(ccb);
897
898 return(error);
899}
900
901static int
902chposition(struct cam_periph *periph, struct changer_position *cp)
903{
904 struct ch_softc *softc;
905 u_int16_t dst;
906 union ccb *ccb;
907 int error;
908
909 error = 0;
910 softc = (struct ch_softc *)periph->softc;
911
912 /*
913 * Check arguments.
914 */
915 if (cp->cp_type > CHET_DT)
916 return (EINVAL);
917 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
918 return (ENODEV);
919
920 /*
921 * Calculate the destination element.
922 */
923 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
924
925 ccb = cam_periph_getccb(periph, /*priority*/ 1);
926
927 scsi_position_to_element(&ccb->csio,
928 /* retries */ 1,
929 /* cbfcnp */ chdone,
930 /* tag_action */ MSG_SIMPLE_Q_TAG,
931 /* tea */ softc->sc_picker,
932 /* dst */ dst,
933 /* invert */ (cp->cp_flags & CP_INVERT) ?
934 TRUE : FALSE,
935 /* sense_len */ SSD_FULL_SIZE,
936 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
937
b05e84c9
PA		 938 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
939 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 940 &softc->device_stats);
941
942 xpt_release_ccb(ccb);
943
944 return(error);
945}
946
947/*
948 * Copy a volume tag to a volume_tag struct, converting SCSI byte order
949 * to host native byte order in the volume serial number. The volume
950 * label as returned by the changer is transferred to user mode as
951 * nul-terminated string. Volume labels are truncated at the first
952 * space, as suggested by SCSI-2.
953 */
954static void
955copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
956{
957 int i;
958 for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
959 char c = voltag->vif[i];
960 if (c && c != ' ')
961 uvoltag->cv_volid[i] = c;
962 else
963 break;
964 }
965 uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
966}
967
968/*
969 * Copy an an element status descriptor to a user-mode
970 * changer_element_status structure.
971 */
972
973static void
974copy_element_status(struct ch_softc *softc,
975 u_int16_t flags,
976 struct read_element_status_descriptor *desc,
977 struct changer_element_status *ces)
978{
979 u_int16_t eaddr = scsi_2btoul(desc->eaddr);
980 u_int16_t et;
981
982 ces->ces_int_addr = eaddr;
983 /* set up logical address in element status */
984 for (et = CHET_MT; et <= CHET_DT; et++) {
985 if ((softc->sc_firsts[et] <= eaddr)
986 && ((softc->sc_firsts[et] + softc->sc_counts[et])
987 > eaddr)) {
988 ces->ces_addr = eaddr - softc->sc_firsts[et];
989 ces->ces_type = et;
990 break;
991 }
992 }
993
994 ces->ces_flags = desc->flags1;
995
996 ces->ces_sensecode = desc->sense_code;
997 ces->ces_sensequal = desc->sense_qual;
998
999 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
1000 ces->ces_flags |= CES_INVERT;
1001
1002 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
1003
1004 eaddr = scsi_2btoul(desc->ssea);
1005
1006 /* convert source address to logical format */
1007 for (et = CHET_MT; et <= CHET_DT; et++) {
1008 if ((softc->sc_firsts[et] <= eaddr)
1009 && ((softc->sc_firsts[et] + softc->sc_counts[et])
1010 > eaddr)) {
1011 ces->ces_source_addr =
1012 eaddr - softc->sc_firsts[et];
1013 ces->ces_source_type = et;
1014 ces->ces_flags |= CES_SOURCE_VALID;
1015 break;
1016 }
1017 }
1018
1019 if (!(ces->ces_flags & CES_SOURCE_VALID))
85f8e2ea 1020 kprintf("ch: warning: could not map element source "
984263bc
MD		 1021 "address %ud to a valid element type\n",
1022 eaddr);
1023 }
1024
1025
1026 if (flags & READ_ELEMENT_STATUS_PVOLTAG)
1027 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag));
1028 if (flags & READ_ELEMENT_STATUS_AVOLTAG)
1029 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag));
1030
1031 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) {
1032 ces->ces_flags |= CES_SCSIID_VALID;
1033 ces->ces_scsi_id = desc->dt_scsi_addr;
1034 }
1035
1036 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) {
1037 ces->ces_flags |= CES_LUN_VALID;
1038 ces->ces_scsi_lun =
1039 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK;
1040 }
1041}
1042
1043static int
1044chgetelemstatus(struct cam_periph *periph,
1045 struct changer_element_status_request *cesr)
1046{
1047 struct read_element_status_header *st_hdr;
1048 struct read_element_status_page_header *pg_hdr;
1049 struct read_element_status_descriptor *desc;
1050 caddr_t data = NULL;
1051 size_t size, desclen;
1052 int avail, i, error = 0;
1053 struct changer_element_status *user_data = NULL;
1054 struct ch_softc *softc;
1055 union ccb *ccb;
1056 int chet = cesr->cesr_element_type;
1057 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
1058
1059 softc = (struct ch_softc *)periph->softc;
1060
1061 /* perform argument checking */
1062
1063 /*
1064 * Perform a range check on the cesr_element_{base,count}
1065 * request argument fields.
1066 */
1067 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
1068 || (cesr->cesr_element_base + cesr->cesr_element_count)
1069 > softc->sc_counts[chet])
1070 return (EINVAL);
1071
1072 /*
1073 * Request one descriptor for the given element type. This
1074 * is used to determine the size of the descriptor so that
1075 * we can allocate enough storage for all of them. We assume
1076 * that the first one can fit into 1k.
1077 */
1c8b7a9a 1078 cam_periph_unlock(periph);
efda3bd0 1079 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT);
984263bc 1080
1c8b7a9a 1081 cam_periph_lock(periph);
984263bc
MD		 1082 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1083
1084 scsi_read_element_status(&ccb->csio,
1085 /* retries */ 1,
1086 /* cbfcnp */ chdone,
1087 /* tag_action */ MSG_SIMPLE_Q_TAG,
1088 /* voltag */ want_voltags,
1089 /* sea */ softc->sc_firsts[chet],
1090 /* count */ 1,
1091 /* data_ptr */ data,
1092 /* dxfer_len */ 1024,
1093 /* sense_len */ SSD_FULL_SIZE,
1094 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1095
b05e84c9
PA		 1096 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1097 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 1098 &softc->device_stats);
1099
1100 if (error)
1101 goto done;
1c8b7a9a 1102 cam_periph_unlock(periph);
984263bc
MD		 1103
1104 st_hdr = (struct read_element_status_header *)data;
1105 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1106 sizeof(struct read_element_status_header));
1107 desclen = scsi_2btoul(pg_hdr->edl);
1108
1109 size = sizeof(struct read_element_status_header) +
1110 sizeof(struct read_element_status_page_header) +
1111 (desclen * cesr->cesr_element_count);
1112
1113 /*
1114 * Reallocate storage for descriptors and get them from the
1115 * device.
1116 */
efda3bd0
MD		 1117 kfree(data, M_DEVBUF);
1118 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT);
984263bc 1119
1c8b7a9a 1120 cam_periph_lock(periph);
984263bc
MD		 1121 scsi_read_element_status(&ccb->csio,
1122 /* retries */ 1,
1123 /* cbfcnp */ chdone,
1124 /* tag_action */ MSG_SIMPLE_Q_TAG,
1125 /* voltag */ want_voltags,
1126 /* sea */ softc->sc_firsts[chet]
1127 + cesr->cesr_element_base,
1128 /* count */ cesr->cesr_element_count,
1129 /* data_ptr */ data,
1130 /* dxfer_len */ size,
1131 /* sense_len */ SSD_FULL_SIZE,
1132 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
1133
b05e84c9
PA		 1134 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1135 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 1136 &softc->device_stats);
1137
1138 if (error)
1139 goto done;
1c8b7a9a 1140 cam_periph_unlock(periph);
984263bc
MD		 1141
1142 /*
1143 * Fill in the user status array.
1144 */
1145 st_hdr = (struct read_element_status_header *)data;
c2183af4
PA		 1146 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
1147 sizeof(struct read_element_status_header));
984263bc
MD		 1148 avail = scsi_2btoul(st_hdr->count);
1149
1150 if (avail != cesr->cesr_element_count) {
1c8b7a9a
PA		 1151 xpt_print(periph->path,
1152 "warning, READ ELEMENT STATUS avail != count\n");
984263bc
MD		 1153 }
1154
1155 user_data = (struct changer_element_status *)
77652cad 1156 kmalloc(avail * sizeof(struct changer_element_status),
898d961b 1157 M_DEVBUF, M_INTWAIT | M_ZERO);
984263bc
MD		 1158
1159 desc = (struct read_element_status_descriptor *)((uintptr_t)data +
1160 sizeof(struct read_element_status_header) +
1161 sizeof(struct read_element_status_page_header));
1162 /*
1163 * Set up the individual element status structures
1164 */
1165 for (i = 0; i < avail; ++i) {
1166 struct changer_element_status *ces = &(user_data[i]);
1167
1168 copy_element_status(softc, pg_hdr->flags, desc, ces);
1169
1170 desc = (struct read_element_status_descriptor *)
1171 ((uintptr_t)desc + desclen);
1172 }
1173
1174 /* Copy element status structures out to userspace. */
1175 error = copyout(user_data,
1176 cesr->cesr_element_status,
1177 avail * sizeof(struct changer_element_status));
1c8b7a9a 1178 cam_periph_lock(periph);
984263bc
MD		 1179
1180 done:
1181 xpt_release_ccb(ccb);
1182
1183 if (data != NULL)
efda3bd0 1184 kfree(data, M_DEVBUF);
984263bc 1185 if (user_data != NULL)
efda3bd0 1186 kfree(user_data, M_DEVBUF);
984263bc
MD		 1187
1188 return (error);
1189}
1190
1191static int
1192chielem(struct cam_periph *periph,
1193 unsigned int timeout)
1194{
1195 union ccb *ccb;
1196 struct ch_softc *softc;
1197 int error;
1198
1199 if (!timeout) {
1200 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
1201 } else {
1202 timeout *= 1000;
1203 }
1204
1205 error = 0;
1206 softc = (struct ch_softc *)periph->softc;
1207
1208 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1209
1210 scsi_initialize_element_status(&ccb->csio,
1211 /* retries */ 1,
1212 /* cbfcnp */ chdone,
1213 /* tag_action */ MSG_SIMPLE_Q_TAG,
1214 /* sense_len */ SSD_FULL_SIZE,
1215 /* timeout */ timeout);
1216
b05e84c9
PA		 1217 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1218 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 1219 &softc->device_stats);
1220
1221 xpt_release_ccb(ccb);
1222
1223 return(error);
1224}
1225
1226static int
1227chsetvoltag(struct cam_periph *periph,
1228 struct changer_set_voltag_request *csvr)
1229{
1230 union ccb *ccb;
1231 struct ch_softc *softc;
1232 u_int16_t ea;
1233 u_int8_t sac;
1234 struct scsi_send_volume_tag_parameters ssvtp;
1235 int error;
1236 int i;
1237
1238 error = 0;
1239 softc = (struct ch_softc *)periph->softc;
1240
1241 bzero(&ssvtp, sizeof(ssvtp));
1242 for (i=0; i<sizeof(ssvtp.vitf); i++) {
1243 ssvtp.vitf[i] = ' ';
1244 }
1245
1246 /*
1247 * Check arguments.
1248 */
1249 if (csvr->csvr_type > CHET_DT)
1250 return EINVAL;
1251 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
1252 return ENODEV;
1253
1254 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
1255
1256 if (csvr->csvr_flags & CSVR_ALTERNATE) {
1257 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1258 case CSVR_MODE_SET:
1259 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
1260 break;
1261 case CSVR_MODE_REPLACE:
1262 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
1263 break;
1264 case CSVR_MODE_CLEAR:
1265 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
1266 break;
1267 default:
1268 error = EINVAL;
1269 goto out;
1270 }
1271 } else {
1272 switch (csvr->csvr_flags & CSVR_MODE_MASK) {
1273 case CSVR_MODE_SET:
1274 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
1275 break;
1276 case CSVR_MODE_REPLACE:
1277 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
1278 break;
1279 case CSVR_MODE_CLEAR:
1280 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
1281 break;
1282 default:
1283 error = EINVAL;
1284 goto out;
1285 }
1286 }
1287
1288 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
1289 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
1290 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
1291
1292 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1293
1294 scsi_send_volume_tag(&ccb->csio,
1295 /* retries */ 1,
1296 /* cbfcnp */ chdone,
1297 /* tag_action */ MSG_SIMPLE_Q_TAG,
1298 /* element_address */ ea,
1299 /* send_action_code */ sac,
1300 /* parameters */ &ssvtp,
1301 /* sense_len */ SSD_FULL_SIZE,
1302 /* timeout */ CH_TIMEOUT_SEND_VOLTAG);
1303
b05e84c9
PA		 1304 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1305 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 1306 &softc->device_stats);
1307
1308 xpt_release_ccb(ccb);
1309
1310 out:
1311 return error;
1312}
1313
1314static int
1315chgetparams(struct cam_periph *periph)
1316{
1317 union ccb *ccb;
1318 struct ch_softc *softc;
1319 void *mode_buffer;
1320 int mode_buffer_len;
1321 struct page_element_address_assignment *ea;
1322 struct page_device_capabilities *cap;
1323 int error, from, dbd;
1324 u_int8_t *moves, *exchanges;
1325
1326 error = 0;
1327
1328 softc = (struct ch_softc *)periph->softc;
1329
1330 ccb = cam_periph_getccb(periph, /*priority*/ 1);
1331
1332 /*
1333 * The scsi_mode_sense_data structure is just a convenience
1334 * structure that allows us to easily calculate the worst-case
1335 * storage size of the mode sense buffer.
1336 */
1337 mode_buffer_len = sizeof(struct scsi_mode_sense_data);
1338
1c8b7a9a 1339 mode_buffer = kmalloc(mode_buffer_len, M_SCSICH, M_INTWAIT | M_ZERO);
984263bc
MD		 1340
1341 if (softc->quirks & CH_Q_NO_DBD)
1342 dbd = FALSE;
1343 else
1344 dbd = TRUE;
1345
1346 /*
1347 * Get the element address assignment page.
1348 */
1349 scsi_mode_sense(&ccb->csio,
1350 /* retries */ 1,
1351 /* cbfcnp */ chdone,
1352 /* tag_action */ MSG_SIMPLE_Q_TAG,
1353 /* dbd */ dbd,
1354 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1355 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
1356 /* param_buf */ (u_int8_t *)mode_buffer,
1357 /* param_len */ mode_buffer_len,
1358 /* sense_len */ SSD_FULL_SIZE,
1359 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1360
b05e84c9
PA		 1361 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1362 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
984263bc
MD		 1363 &softc->device_stats);
1364
1365 if (error) {
1366 if (dbd) {
1367 struct scsi_mode_sense_6 *sms;
1368
1369 sms = (struct scsi_mode_sense_6 *)
1370 ccb->csio.cdb_io.cdb_bytes;
1371
1372 sms->byte2 &= ~SMS_DBD;
b05e84c9
PA		 1373 error = cam_periph_runccb(ccb, cherror,
1374 /*cam_flags*/ CAM_RETRY_SELTO,
1375 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 1376 &softc->device_stats);
1377 } else {
1378 /*
1379 * Since we disabled sense printing above, print
1380 * out the sense here since we got an error.
1381 */
1382 scsi_sense_print(&ccb->csio);
1383 }
1384
1385 if (error) {
1c8b7a9a
PA		 1386 xpt_print(periph->path,
1387 "chgetparams: error getting element "
1388 "address page\n");
984263bc 1389 xpt_release_ccb(ccb);
1c8b7a9a 1390 kfree(mode_buffer, M_SCSICH);
984263bc
MD		 1391 return(error);
1392 }
1393 }
1394
1395 ea = (struct page_element_address_assignment *)
1396 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1397
1398 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
1399 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
1400 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
1401 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
1402 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
1403 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
1404 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
1405 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
1406
1407 bzero(mode_buffer, mode_buffer_len);
1408
1409 /*
1410 * Now get the device capabilities page.
1411 */
1412 scsi_mode_sense(&ccb->csio,
1413 /* retries */ 1,
1414 /* cbfcnp */ chdone,
1415 /* tag_action */ MSG_SIMPLE_Q_TAG,
1416 /* dbd */ dbd,
1417 /* page_code */ SMS_PAGE_CTRL_CURRENT,
1418 /* page */ CH_DEVICE_CAP_PAGE,
1419 /* param_buf */ (u_int8_t *)mode_buffer,
1420 /* param_len */ mode_buffer_len,
1421 /* sense_len */ SSD_FULL_SIZE,
1422 /* timeout */ CH_TIMEOUT_MODE_SENSE);
1423
b05e84c9
PA		 1424 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
1425 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
1426 &softc->device_stats);
984263bc
MD		 1427
1428 if (error) {
1429 if (dbd) {
1430 struct scsi_mode_sense_6 *sms;
1431
1432 sms = (struct scsi_mode_sense_6 *)
1433 ccb->csio.cdb_io.cdb_bytes;
1434
1435 sms->byte2 &= ~SMS_DBD;
b05e84c9
PA		 1436 error = cam_periph_runccb(ccb, cherror,
1437 /*cam_flags*/ CAM_RETRY_SELTO,
1438 /*sense_flags*/ SF_RETRY_UA,
984263bc
MD		 1439 &softc->device_stats);
1440 } else {
1441 /*
1442 * Since we disabled sense printing above, print
1443 * out the sense here since we got an error.
1444 */
1445 scsi_sense_print(&ccb->csio);
1446 }
1447
1448 if (error) {
1c8b7a9a
PA		 1449 xpt_print(periph->path,
1450 "chgetparams: error getting device "
1451 "capabilities page\n");
984263bc 1452 xpt_release_ccb(ccb);
1c8b7a9a 1453 kfree(mode_buffer, M_SCSICH);
984263bc
MD		 1454 return(error);
1455 }
1456 }
1457
1458 xpt_release_ccb(ccb);
1459
1460 cap = (struct page_device_capabilities *)
1461 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
1462
1463 bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
1464 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
31525cf2
PA		 1465 moves = cap->move_from;
1466 exchanges = cap->exchange_with;
1467 for (from = CHET_MT; from <= CHET_MAX; ++from) {
984263bc
MD		 1468 softc->sc_movemask[from] = moves[from];
1469 softc->sc_exchangemask[from] = exchanges[from];
1470 }
1471
1c8b7a9a 1472 kfree(mode_buffer, M_SCSICH);
984263bc
MD		 1473
1474 return(error);
1475}
1476
1477void
1478scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
1479 void (*cbfcnp)(struct cam_periph *, union ccb *),
1480 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1481 u_int32_t dst, int invert, u_int8_t sense_len,
1482 u_int32_t timeout)
1483{
1484 struct scsi_move_medium *scsi_cmd;
1485
1486 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
1487 bzero(scsi_cmd, sizeof(*scsi_cmd));
1488
1489 scsi_cmd->opcode = MOVE_MEDIUM;
1490
1491 scsi_ulto2b(tea, scsi_cmd->tea);
1492 scsi_ulto2b(src, scsi_cmd->src);
1493 scsi_ulto2b(dst, scsi_cmd->dst);
1494
1495 if (invert)
1496 scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
1497
1498 cam_fill_csio(csio,
1499 retries,
1500 cbfcnp,
1501 /*flags*/ CAM_DIR_NONE,
1502 tag_action,
1503 /*data_ptr*/ NULL,
1504 /*dxfer_len*/ 0,
1505 sense_len,
1506 sizeof(*scsi_cmd),
1507 timeout);
1508}
1509
1510void
1511scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
1512 void (*cbfcnp)(struct cam_periph *, union ccb *),
1513 u_int8_t tag_action, u_int32_t tea, u_int32_t src,
1514 u_int32_t dst1, u_int32_t dst2, int invert1,
1515 int invert2, u_int8_t sense_len, u_int32_t timeout)
1516{
1517 struct scsi_exchange_medium *scsi_cmd;
1518
1519 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
1520 bzero(scsi_cmd, sizeof(*scsi_cmd));
1521
1522 scsi_cmd->opcode = EXCHANGE_MEDIUM;
1523
1524 scsi_ulto2b(tea, scsi_cmd->tea);
1525 scsi_ulto2b(src, scsi_cmd->src);
1526 scsi_ulto2b(dst1, scsi_cmd->fdst);
1527 scsi_ulto2b(dst2, scsi_cmd->sdst);
1528
1529 if (invert1)
1530 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
1531
1532 if (invert2)
1533 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
1534
1535 cam_fill_csio(csio,
1536 retries,
1537 cbfcnp,
1538 /*flags*/ CAM_DIR_NONE,
1539 tag_action,
1540 /*data_ptr*/ NULL,
1541 /*dxfer_len*/ 0,
1542 sense_len,
1543 sizeof(*scsi_cmd),
1544 timeout);
1545}
1546
1547void
1548scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
1549 void (*cbfcnp)(struct cam_periph *, union ccb *),
1550 u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
1551 int invert, u_int8_t sense_len, u_int32_t timeout)
1552{
1553 struct scsi_position_to_element *scsi_cmd;
1554
1555 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
1556 bzero(scsi_cmd, sizeof(*scsi_cmd));
1557
1558 scsi_cmd->opcode = POSITION_TO_ELEMENT;
1559
1560 scsi_ulto2b(tea, scsi_cmd->tea);
1561 scsi_ulto2b(dst, scsi_cmd->dst);
1562
1563 if (invert)
1564 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
1565
1566 cam_fill_csio(csio,
1567 retries,
1568 cbfcnp,
1569 /*flags*/ CAM_DIR_NONE,
1570 tag_action,
1571 /*data_ptr*/ NULL,
1572 /*dxfer_len*/ 0,
1573 sense_len,
1574 sizeof(*scsi_cmd),
1575 timeout);
1576}
1577
1578void
1579scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1580 void (*cbfcnp)(struct cam_periph *, union ccb *),
1581 u_int8_t tag_action, int voltag, u_int32_t sea,
1582 u_int32_t count, u_int8_t *data_ptr,
1583 u_int32_t dxfer_len, u_int8_t sense_len,
1584 u_int32_t timeout)
1585{
1586 struct scsi_read_element_status *scsi_cmd;
1587
1588 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
1589 bzero(scsi_cmd, sizeof(*scsi_cmd));
1590
1591 scsi_cmd->opcode = READ_ELEMENT_STATUS;
1592
1593 scsi_ulto2b(sea, scsi_cmd->sea);
1594 scsi_ulto2b(count, scsi_cmd->count);
1595 scsi_ulto3b(dxfer_len, scsi_cmd->len);
1596
1597 if (voltag)
1598 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
1599
1600 cam_fill_csio(csio,
1601 retries,
1602 cbfcnp,
1603 /*flags*/ CAM_DIR_IN,
1604 tag_action,
1605 data_ptr,
1606 dxfer_len,
1607 sense_len,
1608 sizeof(*scsi_cmd),
1609 timeout);
1610}
1611
1612void
1613scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
1614 void (*cbfcnp)(struct cam_periph *, union ccb *),
1615 u_int8_t tag_action, u_int8_t sense_len,
1616 u_int32_t timeout)
1617{
1618 struct scsi_initialize_element_status *scsi_cmd;
1619
1620 scsi_cmd = (struct scsi_initialize_element_status *)
1621 &csio->cdb_io.cdb_bytes;
1622 bzero(scsi_cmd, sizeof(*scsi_cmd));
1623
1624 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
1625
1626 cam_fill_csio(csio,
1627 retries,
1628 cbfcnp,
1629 /*flags*/ CAM_DIR_NONE,
1630 tag_action,
1631 /* data_ptr */ NULL,
1632 /* dxfer_len */ 0,
1633 sense_len,
1634 sizeof(*scsi_cmd),
1635 timeout);
1636}
1637
1638void
1639scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
1640 void (*cbfcnp)(struct cam_periph *, union ccb *),
1641 u_int8_t tag_action,
1642 u_int16_t element_address,
1643 u_int8_t send_action_code,
1644 struct scsi_send_volume_tag_parameters *parameters,
1645 u_int8_t sense_len, u_int32_t timeout)
1646{
1647 struct scsi_send_volume_tag *scsi_cmd;
1648
1649 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
1650 bzero(scsi_cmd, sizeof(*scsi_cmd));
1651
1652 scsi_cmd->opcode = SEND_VOLUME_TAG;
1653 scsi_ulto2b(element_address, scsi_cmd->ea);
1654 scsi_cmd->sac = send_action_code;
1655 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
1656
1657 cam_fill_csio(csio,
1658 retries,
1659 cbfcnp,
1660 /*flags*/ CAM_DIR_OUT,
1661 tag_action,
1662 /* data_ptr */ (u_int8_t *) parameters,
1663 sizeof(*parameters),
1664 sense_len,
1665 sizeof(*scsi_cmd),
1666 timeout);
1667}
DragonFly Project GIT Source repo