FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_da.c
1 /*-
2 * Implementation of SCSI Direct Access Peripheral driver for CAM.
3 *
4 * Copyright (c) 1997 Justin T. Gibbs.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions, and the following disclaimer,
12 * without modification, immediately at the beginning of the file.
13 * 2. The name of the author may not be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD: releng/6.1/sys/cam/scsi/scsi_da.c 156853 2006-03-18 21:15:40Z joerg $");
31
32 #include <sys/param.h>
33
34 #ifdef _KERNEL
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/bio.h>
38 #include <sys/sysctl.h>
39 #include <sys/taskqueue.h>
40 #endif /* _KERNEL */
41
42 #include <sys/devicestat.h>
43 #include <sys/conf.h>
44 #include <sys/eventhandler.h>
45 #include <sys/malloc.h>
46 #include <sys/cons.h>
47
48 #include <machine/md_var.h>
49
50 #include <vm/vm.h>
51 #include <vm/pmap.h>
52
53 #include <geom/geom_disk.h>
54
55 #ifndef _KERNEL
56 #include <stdio.h>
57 #include <string.h>
58 #endif /* _KERNEL */
59
60 #include <cam/cam.h>
61 #include <cam/cam_ccb.h>
62 #include <cam/cam_periph.h>
63 #include <cam/cam_xpt_periph.h>
64
65 #include <cam/scsi/scsi_message.h>
66
67 #ifndef _KERNEL
68 #include <cam/scsi/scsi_da.h>
69 #endif /* !_KERNEL */
70
71 #ifdef _KERNEL
72 typedef enum {
73 DA_STATE_PROBE,
74 DA_STATE_PROBE2,
75 DA_STATE_NORMAL
76 } da_state;
77
78 typedef enum {
79 DA_FLAG_PACK_INVALID = 0x001,
80 DA_FLAG_NEW_PACK = 0x002,
81 DA_FLAG_PACK_LOCKED = 0x004,
82 DA_FLAG_PACK_REMOVABLE = 0x008,
83 DA_FLAG_TAGGED_QUEUING = 0x010,
84 DA_FLAG_NEED_OTAG = 0x020,
85 DA_FLAG_WENT_IDLE = 0x040,
86 DA_FLAG_RETRY_UA = 0x080,
87 DA_FLAG_OPEN = 0x100,
88 DA_FLAG_SCTX_INIT = 0x200
89 } da_flags;
90
91 typedef enum {
92 DA_Q_NONE = 0x00,
93 DA_Q_NO_SYNC_CACHE = 0x01,
94 DA_Q_NO_6_BYTE = 0x02,
95 DA_Q_NO_PREVENT = 0x04
96 } da_quirks;
97
98 typedef enum {
99 DA_CCB_PROBE = 0x01,
100 DA_CCB_PROBE2 = 0x02,
101 DA_CCB_BUFFER_IO = 0x03,
102 DA_CCB_WAITING = 0x04,
103 DA_CCB_DUMP = 0x05,
104 DA_CCB_TYPE_MASK = 0x0F,
105 DA_CCB_RETRY_UA = 0x10
106 } da_ccb_state;
107
108 /* Offsets into our private area for storing information */
109 #define ccb_state ppriv_field0
110 #define ccb_bp ppriv_ptr1
111
112 struct disk_params {
113 u_int8_t heads;
114 u_int32_t cylinders;
115 u_int8_t secs_per_track;
116 u_int32_t secsize; /* Number of bytes/sector */
117 u_int64_t sectors; /* total number sectors */
118 };
119
120 struct da_softc {
121 struct bio_queue_head bio_queue;
122 SLIST_ENTRY(da_softc) links;
123 LIST_HEAD(, ccb_hdr) pending_ccbs;
124 da_state state;
125 da_flags flags;
126 da_quirks quirks;
127 int minimum_cmd_size;
128 int ordered_tag_count;
129 int outstanding_cmds;
130 struct disk_params params;
131 struct disk *disk;
132 union ccb saved_ccb;
133 struct task sysctl_task;
134 struct sysctl_ctx_list sysctl_ctx;
135 struct sysctl_oid *sysctl_tree;
136 };
137
138 struct da_quirk_entry {
139 struct scsi_inquiry_pattern inq_pat;
140 da_quirks quirks;
141 };
142
143 static const char quantum[] = "QUANTUM";
144 static const char microp[] = "MICROP";
145
146 static struct da_quirk_entry da_quirk_table[] =
147 {
148 /* SPI, FC devices */
149 {
150 /*
151 * Fujitsu M2513A MO drives.
152 * Tested devices: M2513A2 firmware versions 1200 & 1300.
153 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
154 * Reported by: W.Scholten <whs@xs4all.nl>
155 */
156 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
157 /*quirks*/ DA_Q_NO_SYNC_CACHE
158 },
159 {
160 /* See above. */
161 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
162 /*quirks*/ DA_Q_NO_SYNC_CACHE
163 },
164 {
165 /*
166 * This particular Fujitsu drive doesn't like the
167 * synchronize cache command.
168 * Reported by: Tom Jackson <toj@gorilla.net>
169 */
170 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
171 /*quirks*/ DA_Q_NO_SYNC_CACHE
172
173 },
174 {
175 /*
176 * This drive doesn't like the synchronize cache command
177 * either. Reported by: Matthew Jacob <mjacob@feral.com>
178 * in NetBSD PR kern/6027, August 24, 1998.
179 */
180 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
181 /*quirks*/ DA_Q_NO_SYNC_CACHE
182 },
183 {
184 /*
185 * This drive doesn't like the synchronize cache command
186 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
187 * (PR 8882).
188 */
189 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
190 /*quirks*/ DA_Q_NO_SYNC_CACHE
191 },
192 {
193 /*
194 * Doesn't like the synchronize cache command.
195 * Reported by: Blaz Zupan <blaz@gold.amis.net>
196 */
197 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
198 /*quirks*/ DA_Q_NO_SYNC_CACHE
199 },
200 {
201 /*
202 * Doesn't like the synchronize cache command.
203 * Reported by: Blaz Zupan <blaz@gold.amis.net>
204 */
205 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
206 /*quirks*/ DA_Q_NO_SYNC_CACHE
207 },
208 {
209 /*
210 * Doesn't like the synchronize cache command.
211 */
212 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
213 /*quirks*/ DA_Q_NO_SYNC_CACHE
214 },
215 {
216 /*
217 * Doesn't like the synchronize cache command.
218 * Reported by: walter@pelissero.de
219 */
220 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
221 /*quirks*/ DA_Q_NO_SYNC_CACHE
222 },
223 {
224 /*
225 * Doesn't work correctly with 6 byte reads/writes.
226 * Returns illegal request, and points to byte 9 of the
227 * 6-byte CDB.
228 * Reported by: Adam McDougall <bsdx@spawnet.com>
229 */
230 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
231 /*quirks*/ DA_Q_NO_6_BYTE
232 },
233 {
234 /* See above. */
235 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
236 /*quirks*/ DA_Q_NO_6_BYTE
237 },
238 {
239 /*
240 * Doesn't like the synchronize cache command.
241 * Reported by: walter@pelissero.de
242 */
243 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
244 /*quirks*/ DA_Q_NO_SYNC_CACHE
245 },
246 {
247 /*
248 * The CISS RAID controllers do not support SYNC_CACHE
249 */
250 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
251 /*quirks*/ DA_Q_NO_SYNC_CACHE
252 },
253 /* USB mass storage devices supported by umass(4) */
254 {
255 /*
256 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
257 * PR: kern/51675
258 */
259 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
260 /*quirks*/ DA_Q_NO_SYNC_CACHE
261 },
262 {
263 /*
264 * Power Quotient Int. (PQI) USB flash key
265 * PR: kern/53067
266 */
267 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
268 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
269 },
270 {
271 /*
272 * Creative Nomad MUVO mp3 player (USB)
273 * PR: kern/53094
274 */
275 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
276 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
277 },
278 {
279 /*
280 * Jungsoft NEXDISK USB flash key
281 * PR: kern/54737
282 */
283 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
284 /*quirks*/ DA_Q_NO_SYNC_CACHE
285 },
286 {
287 /*
288 * FreeDik USB Mini Data Drive
289 * PR: kern/54786
290 */
291 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
292 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
293 },
294 {
295 /*
296 * Sigmatel USB Flash MP3 Player
297 * PR: kern/57046
298 */
299 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
300 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
301 },
302 {
303 /*
304 * Neuros USB Digital Audio Computer
305 * PR: kern/63645
306 */
307 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
308 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
309 },
310 {
311 /*
312 * SEAGRAND NP-900 MP3 Player
313 * PR: kern/64563
314 */
315 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
316 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
317 },
318 {
319 /*
320 * iRiver iFP MP3 player (with UMS Firmware)
321 * PR: kern/54881, i386/63941, kern/66124
322 */
323 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
324 /*quirks*/ DA_Q_NO_SYNC_CACHE
325 },
326 {
327 /*
328 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
329 * PR: kern/70158
330 */
331 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
332 /*quirks*/ DA_Q_NO_SYNC_CACHE
333 },
334 {
335 /*
336 * ZICPlay USB MP3 Player with FM
337 * PR: kern/75057
338 */
339 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
340 /*quirks*/ DA_Q_NO_SYNC_CACHE
341 },
342 {
343 /*
344 * TEAC USB floppy mechanisms
345 */
346 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
347 /*quirks*/ DA_Q_NO_SYNC_CACHE
348 },
349 {
350 /*
351 * Kingston DataTraveler II+ USB Pen-Drive.
352 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
353 */
354 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", "*"},
355 /*quirks*/ DA_Q_NO_SYNC_CACHE
356 },
357 {
358 /*
359 * Motorola E398 Mobile Phone (TransFlash memory card).
360 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
361 * PR: usb/89889
362 */
363 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
364 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
365 },
366 {
367 /*
368 * Qware BeatZkey! Pro
369 * PR: usb/79164
370 */
371 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
372 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
373 },
374 {
375 /*
376 * Time DPA20B 1GB MP3 Player
377 * PR: usb/81846
378 */
379 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
380 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
381 },
382 {
383 /*
384 * Samsung USB key 128Mb
385 * PR: usb/90081
386 */
387 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
388 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
389 },
390 {
391 /*
392 * Kingston DataTraveler 2.0 USB Flash memory.
393 * PR: usb/89196
394 */
395 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
396 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
397 },
398 {
399 /*
400 * Creative MUVO Slim mp3 player (USB)
401 * PR: usb/86131
402 */
403 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
404 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
405 },
406 {
407 /*
408 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
409 * PR: usb/80487
410 */
411 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
412 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
413 },
414 {
415 /*
416 * SanDisk Micro Cruzer 128MB
417 * PR: usb/75970
418 */
419 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
420 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
421 },
422 {
423 /*
424 * TOSHIBA TransMemory USB sticks
425 * PR: kern/94660
426 */
427 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
428 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
429 },
430 {
431 /*
432 * PNY USB Flash keys
433 * PR: usb/75578, usb/72344, usb/65436
434 */
435 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
436 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
437 },
438 {
439 /*
440 * Genesys 6-in-1 Card Reader
441 * PR: usb/94647
442 */
443 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
444 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
445 },
446 };
447
448 static disk_strategy_t dastrategy;
449 static dumper_t dadump;
450 static periph_init_t dainit;
451 static void daasync(void *callback_arg, u_int32_t code,
452 struct cam_path *path, void *arg);
453 static void dasysctlinit(void *context, int pending);
454 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
455 static periph_ctor_t daregister;
456 static periph_dtor_t dacleanup;
457 static periph_start_t dastart;
458 static periph_oninv_t daoninvalidate;
459 static void dadone(struct cam_periph *periph,
460 union ccb *done_ccb);
461 static int daerror(union ccb *ccb, u_int32_t cam_flags,
462 u_int32_t sense_flags);
463 static void daprevent(struct cam_periph *periph, int action);
464 static int dagetcapacity(struct cam_periph *periph);
465 static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
466 uint64_t maxsector);
467 static timeout_t dasendorderedtag;
468 static void dashutdown(void *arg, int howto);
469
470 #ifndef DA_DEFAULT_TIMEOUT
471 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
472 #endif
473
474 #ifndef DA_DEFAULT_RETRY
475 #define DA_DEFAULT_RETRY 4
476 #endif
477
478 static int da_retry_count = DA_DEFAULT_RETRY;
479 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
480
481 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
482 "CAM Direct Access Disk driver");
483 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
484 &da_retry_count, 0, "Normal I/O retry count");
485 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
486 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
487 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
488 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
489
490 /*
491 * DA_ORDEREDTAG_INTERVAL determines how often, relative
492 * to the default timeout, we check to see whether an ordered
493 * tagged transaction is appropriate to prevent simple tag
494 * starvation. Since we'd like to ensure that there is at least
495 * 1/2 of the timeout length left for a starved transaction to
496 * complete after we've sent an ordered tag, we must poll at least
497 * four times in every timeout period. This takes care of the worst
498 * case where a starved transaction starts during an interval that
499 * meets the requirement "don't send an ordered tag" test so it takes
500 * us two intervals to determine that a tag must be sent.
501 */
502 #ifndef DA_ORDEREDTAG_INTERVAL
503 #define DA_ORDEREDTAG_INTERVAL 4
504 #endif
505
506 static struct periph_driver dadriver =
507 {
508 dainit, "da",
509 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
510 };
511
512 PERIPHDRIVER_DECLARE(da, dadriver);
513
514 static SLIST_HEAD(,da_softc) softc_list;
515
516 static int
517 daopen(struct disk *dp)
518 {
519 struct cam_periph *periph;
520 struct da_softc *softc;
521 int unit;
522 int error;
523 int s;
524
525 s = splsoftcam();
526 periph = (struct cam_periph *)dp->d_drv1;
527 if (periph == NULL) {
528 splx(s);
529 return (ENXIO);
530 }
531 unit = periph->unit_number;
532
533 softc = (struct da_softc *)periph->softc;
534
535 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
536 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
537 unit));
538
539 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0)
540 return (error); /* error code from tsleep */
541
542 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
543 return(ENXIO);
544 softc->flags |= DA_FLAG_OPEN;
545
546 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
547 /* Invalidate our pack information. */
548 softc->flags &= ~DA_FLAG_PACK_INVALID;
549 }
550 splx(s);
551
552 error = dagetcapacity(periph);
553
554 if (error == 0) {
555
556 softc->disk->d_sectorsize = softc->params.secsize;
557 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
558 /* XXX: these are not actually "firmware" values, so they may be wrong */
559 softc->disk->d_fwsectors = softc->params.secs_per_track;
560 softc->disk->d_fwheads = softc->params.heads;
561 softc->disk->d_devstat->block_size = softc->params.secsize;
562 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
563 }
564
565 if (error == 0) {
566 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
567 (softc->quirks & DA_Q_NO_PREVENT) == 0)
568 daprevent(periph, PR_PREVENT);
569 } else {
570 softc->flags &= ~DA_FLAG_OPEN;
571 cam_periph_release(periph);
572 }
573 cam_periph_unlock(periph);
574 return (error);
575 }
576
577 static int
578 daclose(struct disk *dp)
579 {
580 struct cam_periph *periph;
581 struct da_softc *softc;
582 int error;
583
584 periph = (struct cam_periph *)dp->d_drv1;
585 if (periph == NULL)
586 return (ENXIO);
587
588 softc = (struct da_softc *)periph->softc;
589
590 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
591 return (error); /* error code from tsleep */
592 }
593
594 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
595 union ccb *ccb;
596
597 ccb = cam_periph_getccb(periph, /*priority*/1);
598
599 scsi_synchronize_cache(&ccb->csio,
600 /*retries*/1,
601 /*cbfcnp*/dadone,
602 MSG_SIMPLE_Q_TAG,
603 /*begin_lba*/0,/* Cover the whole disk */
604 /*lb_count*/0,
605 SSD_FULL_SIZE,
606 5 * 60 * 1000);
607
608 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
609 /*sense_flags*/SF_RETRY_UA,
610 softc->disk->d_devstat);
611
612 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
613 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
614 CAM_SCSI_STATUS_ERROR) {
615 int asc, ascq;
616 int sense_key, error_code;
617
618 scsi_extract_sense(&ccb->csio.sense_data,
619 &error_code,
620 &sense_key,
621 &asc, &ascq);
622 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
623 scsi_sense_print(&ccb->csio);
624 } else {
625 xpt_print_path(periph->path);
626 printf("Synchronize cache failed, status "
627 "== 0x%x, scsi status == 0x%x\n",
628 ccb->csio.ccb_h.status,
629 ccb->csio.scsi_status);
630 }
631 }
632
633 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
634 cam_release_devq(ccb->ccb_h.path,
635 /*relsim_flags*/0,
636 /*reduction*/0,
637 /*timeout*/0,
638 /*getcount_only*/0);
639
640 xpt_release_ccb(ccb);
641
642 }
643
644 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
645 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
646 daprevent(periph, PR_ALLOW);
647 /*
648 * If we've got removeable media, mark the blocksize as
649 * unavailable, since it could change when new media is
650 * inserted.
651 */
652 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
653 }
654
655 softc->flags &= ~DA_FLAG_OPEN;
656 cam_periph_unlock(periph);
657 cam_periph_release(periph);
658 return (0);
659 }
660
661 /*
662 * Actually translate the requested transfer into one the physical driver
663 * can understand. The transfer is described by a buf and will include
664 * only one physical transfer.
665 */
666 static void
667 dastrategy(struct bio *bp)
668 {
669 struct cam_periph *periph;
670 struct da_softc *softc;
671 int s;
672
673 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
674 if (periph == NULL) {
675 biofinish(bp, NULL, ENXIO);
676 return;
677 }
678 softc = (struct da_softc *)periph->softc;
679 #if 0
680 /*
681 * check it's not too big a transfer for our adapter
682 */
683 scsi_minphys(bp,&sd_switch);
684 #endif
685
686 /*
687 * Mask interrupts so that the pack cannot be invalidated until
688 * after we are in the queue. Otherwise, we might not properly
689 * clean up one of the buffers.
690 */
691 s = splbio();
692
693 /*
694 * If the device has been made invalid, error out
695 */
696 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
697 splx(s);
698 biofinish(bp, NULL, ENXIO);
699 return;
700 }
701
702 /*
703 * Place it in the queue of disk activities for this disk
704 */
705 bioq_disksort(&softc->bio_queue, bp);
706
707 splx(s);
708
709 /*
710 * Schedule ourselves for performing the work.
711 */
712 xpt_schedule(periph, /* XXX priority */1);
713
714 return;
715 }
716
717 static int
718 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
719 {
720 struct cam_periph *periph;
721 struct da_softc *softc;
722 u_int secsize;
723 struct ccb_scsiio csio;
724 struct disk *dp;
725
726 dp = arg;
727 periph = dp->d_drv1;
728 if (periph == NULL)
729 return (ENXIO);
730 softc = (struct da_softc *)periph->softc;
731 secsize = softc->params.secsize;
732
733 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
734 return (ENXIO);
735
736 if (length > 0) {
737 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
738 csio.ccb_h.ccb_state = DA_CCB_DUMP;
739 scsi_read_write(&csio,
740 /*retries*/1,
741 dadone,
742 MSG_ORDERED_Q_TAG,
743 /*read*/FALSE,
744 /*byte2*/0,
745 /*minimum_cmd_size*/ softc->minimum_cmd_size,
746 offset / secsize,
747 length / secsize,
748 /*data_ptr*/(u_int8_t *) virtual,
749 /*dxfer_len*/length,
750 /*sense_len*/SSD_FULL_SIZE,
751 DA_DEFAULT_TIMEOUT * 1000);
752 xpt_polled_action((union ccb *)&csio);
753
754 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
755 printf("Aborting dump due to I/O error.\n");
756 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
757 CAM_SCSI_STATUS_ERROR)
758 scsi_sense_print(&csio);
759 else
760 printf("status == 0x%x, scsi status == 0x%x\n",
761 csio.ccb_h.status, csio.scsi_status);
762 return(EIO);
763 }
764 return(0);
765 }
766
767 /*
768 * Sync the disk cache contents to the physical media.
769 */
770 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
771
772 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
773 csio.ccb_h.ccb_state = DA_CCB_DUMP;
774 scsi_synchronize_cache(&csio,
775 /*retries*/1,
776 /*cbfcnp*/dadone,
777 MSG_SIMPLE_Q_TAG,
778 /*begin_lba*/0,/* Cover the whole disk */
779 /*lb_count*/0,
780 SSD_FULL_SIZE,
781 5 * 60 * 1000);
782 xpt_polled_action((union ccb *)&csio);
783
784 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
785 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
786 CAM_SCSI_STATUS_ERROR) {
787 int asc, ascq;
788 int sense_key, error_code;
789
790 scsi_extract_sense(&csio.sense_data,
791 &error_code,
792 &sense_key,
793 &asc, &ascq);
794 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
795 scsi_sense_print(&csio);
796 } else {
797 xpt_print_path(periph->path);
798 printf("Synchronize cache failed, status "
799 "== 0x%x, scsi status == 0x%x\n",
800 csio.ccb_h.status, csio.scsi_status);
801 }
802 }
803 }
804 return (0);
805 }
806
807 static void
808 dainit(void)
809 {
810 cam_status status;
811 struct cam_path *path;
812
813 SLIST_INIT(&softc_list);
814
815 /*
816 * Install a global async callback. This callback will
817 * receive async callbacks like "new device found".
818 */
819 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
820 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
821
822 if (status == CAM_REQ_CMP) {
823 struct ccb_setasync csa;
824
825 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
826 csa.ccb_h.func_code = XPT_SASYNC_CB;
827 csa.event_enable = AC_FOUND_DEVICE;
828 csa.callback = daasync;
829 csa.callback_arg = NULL;
830 xpt_action((union ccb *)&csa);
831 status = csa.ccb_h.status;
832 xpt_free_path(path);
833 }
834
835 if (status != CAM_REQ_CMP) {
836 printf("da: Failed to attach master async callback "
837 "due to status 0x%x!\n", status);
838 } else {
839
840 /*
841 * Schedule a periodic event to occasionally send an
842 * ordered tag to a device.
843 */
844 timeout(dasendorderedtag, NULL,
845 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
846
847 /* Register our shutdown event handler */
848 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
849 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
850 printf("dainit: shutdown event registration failed!\n");
851 }
852 }
853
854 static void
855 daoninvalidate(struct cam_periph *periph)
856 {
857 int s;
858 struct da_softc *softc;
859 struct ccb_setasync csa;
860
861 softc = (struct da_softc *)periph->softc;
862
863 /*
864 * De-register any async callbacks.
865 */
866 xpt_setup_ccb(&csa.ccb_h, periph->path,
867 /* priority */ 5);
868 csa.ccb_h.func_code = XPT_SASYNC_CB;
869 csa.event_enable = 0;
870 csa.callback = daasync;
871 csa.callback_arg = periph;
872 xpt_action((union ccb *)&csa);
873
874 softc->flags |= DA_FLAG_PACK_INVALID;
875
876 /*
877 * Although the oninvalidate() routines are always called at
878 * splsoftcam, we need to be at splbio() here to keep the buffer
879 * queue from being modified while we traverse it.
880 */
881 s = splbio();
882
883 /*
884 * Return all queued I/O with ENXIO.
885 * XXX Handle any transactions queued to the card
886 * with XPT_ABORT_CCB.
887 */
888 bioq_flush(&softc->bio_queue, NULL, ENXIO);
889 splx(s);
890
891 SLIST_REMOVE(&softc_list, softc, da_softc, links);
892
893 disk_gone(softc->disk);
894 xpt_print_path(periph->path);
895 printf("lost device\n");
896 }
897
898 static void
899 dacleanup(struct cam_periph *periph)
900 {
901 struct da_softc *softc;
902
903 softc = (struct da_softc *)periph->softc;
904
905 xpt_print_path(periph->path);
906 printf("removing device entry\n");
907 /*
908 * If we can't free the sysctl tree, oh well...
909 */
910 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
911 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
912 xpt_print_path(periph->path);
913 printf("can't remove sysctl context\n");
914 }
915 disk_destroy(softc->disk);
916 free(softc, M_DEVBUF);
917 }
918
919 static void
920 daasync(void *callback_arg, u_int32_t code,
921 struct cam_path *path, void *arg)
922 {
923 struct cam_periph *periph;
924
925 periph = (struct cam_periph *)callback_arg;
926 switch (code) {
927 case AC_FOUND_DEVICE:
928 {
929 struct ccb_getdev *cgd;
930 cam_status status;
931
932 cgd = (struct ccb_getdev *)arg;
933 if (cgd == NULL)
934 break;
935
936 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
937 && SID_TYPE(&cgd->inq_data) != T_RBC
938 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
939 break;
940
941 /*
942 * Allocate a peripheral instance for
943 * this device and start the probe
944 * process.
945 */
946 status = cam_periph_alloc(daregister, daoninvalidate,
947 dacleanup, dastart,
948 "da", CAM_PERIPH_BIO,
949 cgd->ccb_h.path, daasync,
950 AC_FOUND_DEVICE, cgd);
951
952 if (status != CAM_REQ_CMP
953 && status != CAM_REQ_INPROG)
954 printf("daasync: Unable to attach to new device "
955 "due to status 0x%x\n", status);
956 break;
957 }
958 case AC_SENT_BDR:
959 case AC_BUS_RESET:
960 {
961 struct da_softc *softc;
962 struct ccb_hdr *ccbh;
963 int s;
964
965 softc = (struct da_softc *)periph->softc;
966 s = splsoftcam();
967 /*
968 * Don't fail on the expected unit attention
969 * that will occur.
970 */
971 softc->flags |= DA_FLAG_RETRY_UA;
972 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
973 ccbh->ccb_state |= DA_CCB_RETRY_UA;
974 splx(s);
975 /* FALLTHROUGH*/
976 }
977 default:
978 cam_periph_async(periph, code, path, arg);
979 break;
980 }
981 }
982
983 static void
984 dasysctlinit(void *context, int pending)
985 {
986 struct cam_periph *periph;
987 struct da_softc *softc;
988 char tmpstr[80], tmpstr2[80];
989
990 periph = (struct cam_periph *)context;
991 softc = (struct da_softc *)periph->softc;
992
993 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
994 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
995
996 mtx_lock(&Giant);
997 sysctl_ctx_init(&softc->sysctl_ctx);
998 softc->flags |= DA_FLAG_SCTX_INIT;
999 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1000 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1001 CTLFLAG_RD, 0, tmpstr);
1002 if (softc->sysctl_tree == NULL) {
1003 printf("dasysctlinit: unable to allocate sysctl tree\n");
1004 return;
1005 }
1006
1007 /*
1008 * Now register the sysctl handler, so the user can the value on
1009 * the fly.
1010 */
1011 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
1012 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1013 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1014 "Minimum CDB size");
1015
1016 mtx_unlock(&Giant);
1017 }
1018
1019 static int
1020 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1021 {
1022 int error, value;
1023
1024 value = *(int *)arg1;
1025
1026 error = sysctl_handle_int(oidp, &value, 0, req);
1027
1028 if ((error != 0)
1029 || (req->newptr == NULL))
1030 return (error);
1031
1032 /*
1033 * Acceptable values here are 6, 10, 12 or 16.
1034 */
1035 if (value < 6)
1036 value = 6;
1037 else if ((value > 6)
1038 && (value <= 10))
1039 value = 10;
1040 else if ((value > 10)
1041 && (value <= 12))
1042 value = 12;
1043 else if (value > 12)
1044 value = 16;
1045
1046 *(int *)arg1 = value;
1047
1048 return (0);
1049 }
1050
1051 static cam_status
1052 daregister(struct cam_periph *periph, void *arg)
1053 {
1054 int s;
1055 struct da_softc *softc;
1056 struct ccb_setasync csa;
1057 struct ccb_pathinq cpi;
1058 struct ccb_getdev *cgd;
1059 char tmpstr[80];
1060 caddr_t match;
1061
1062 cgd = (struct ccb_getdev *)arg;
1063 if (periph == NULL) {
1064 printf("daregister: periph was NULL!!\n");
1065 return(CAM_REQ_CMP_ERR);
1066 }
1067
1068 if (cgd == NULL) {
1069 printf("daregister: no getdev CCB, can't register device\n");
1070 return(CAM_REQ_CMP_ERR);
1071 }
1072
1073 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1074 M_NOWAIT|M_ZERO);
1075
1076 if (softc == NULL) {
1077 printf("daregister: Unable to probe new device. "
1078 "Unable to allocate softc\n");
1079 return(CAM_REQ_CMP_ERR);
1080 }
1081
1082 LIST_INIT(&softc->pending_ccbs);
1083 softc->state = DA_STATE_PROBE;
1084 bioq_init(&softc->bio_queue);
1085 if (SID_IS_REMOVABLE(&cgd->inq_data))
1086 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1087 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1088 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1089
1090 periph->softc = softc;
1091
1092 /*
1093 * See if this device has any quirks.
1094 */
1095 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1096 (caddr_t)da_quirk_table,
1097 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1098 sizeof(*da_quirk_table), scsi_inquiry_match);
1099
1100 if (match != NULL)
1101 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1102 else
1103 softc->quirks = DA_Q_NONE;
1104
1105 /* Check if the SIM does not want 6 byte commands */
1106 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
1107 cpi.ccb_h.func_code = XPT_PATH_INQ;
1108 xpt_action((union ccb *)&cpi);
1109 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1110 softc->quirks |= DA_Q_NO_6_BYTE;
1111
1112 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1113
1114 /*
1115 * RBC devices don't have to support READ(6), only READ(10).
1116 */
1117 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1118 softc->minimum_cmd_size = 10;
1119 else
1120 softc->minimum_cmd_size = 6;
1121
1122 /*
1123 * Load the user's default, if any.
1124 */
1125 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1126 periph->unit_number);
1127 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1128
1129 /*
1130 * 6, 10, 12 and 16 are the currently permissible values.
1131 */
1132 if (softc->minimum_cmd_size < 6)
1133 softc->minimum_cmd_size = 6;
1134 else if ((softc->minimum_cmd_size > 6)
1135 && (softc->minimum_cmd_size <= 10))
1136 softc->minimum_cmd_size = 10;
1137 else if ((softc->minimum_cmd_size > 10)
1138 && (softc->minimum_cmd_size <= 12))
1139 softc->minimum_cmd_size = 12;
1140 else if (softc->minimum_cmd_size > 12)
1141 softc->minimum_cmd_size = 16;
1142
1143 /*
1144 * Block our timeout handler while we
1145 * add this softc to the dev list.
1146 */
1147 s = splsoftclock();
1148 SLIST_INSERT_HEAD(&softc_list, softc, links);
1149 splx(s);
1150
1151 /*
1152 * Register this media as a disk
1153 */
1154
1155 softc->disk = disk_alloc();
1156 softc->disk->d_open = daopen;
1157 softc->disk->d_close = daclose;
1158 softc->disk->d_strategy = dastrategy;
1159 softc->disk->d_dump = dadump;
1160 softc->disk->d_name = "da";
1161 softc->disk->d_drv1 = periph;
1162 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */
1163 softc->disk->d_unit = periph->unit_number;
1164 softc->disk->d_flags = DISKFLAG_NEEDSGIANT;
1165 disk_create(softc->disk, DISK_VERSION);
1166
1167 /*
1168 * Add async callbacks for bus reset and
1169 * bus device reset calls. I don't bother
1170 * checking if this fails as, in most cases,
1171 * the system will function just fine without
1172 * them and the only alternative would be to
1173 * not attach the device on failure.
1174 */
1175 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
1176 csa.ccb_h.func_code = XPT_SASYNC_CB;
1177 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
1178 csa.callback = daasync;
1179 csa.callback_arg = periph;
1180 xpt_action((union ccb *)&csa);
1181 /*
1182 * Lock this peripheral until we are setup.
1183 * This first call can't block
1184 */
1185 (void)cam_periph_lock(periph, PRIBIO);
1186 xpt_schedule(periph, /*priority*/5);
1187
1188 return(CAM_REQ_CMP);
1189 }
1190
1191 static void
1192 dastart(struct cam_periph *periph, union ccb *start_ccb)
1193 {
1194 struct da_softc *softc;
1195
1196 softc = (struct da_softc *)periph->softc;
1197
1198
1199 switch (softc->state) {
1200 case DA_STATE_NORMAL:
1201 {
1202 /* Pull a buffer from the queue and get going on it */
1203 struct bio *bp;
1204 int s;
1205
1206 /*
1207 * See if there is a buf with work for us to do..
1208 */
1209 s = splbio();
1210 bp = bioq_first(&softc->bio_queue);
1211 if (periph->immediate_priority <= periph->pinfo.priority) {
1212 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1213 ("queuing for immediate ccb\n"));
1214 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1215 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1216 periph_links.sle);
1217 periph->immediate_priority = CAM_PRIORITY_NONE;
1218 splx(s);
1219 wakeup(&periph->ccb_list);
1220 } else if (bp == NULL) {
1221 splx(s);
1222 xpt_release_ccb(start_ccb);
1223 } else {
1224 int oldspl;
1225 u_int8_t tag_code;
1226
1227 bioq_remove(&softc->bio_queue, bp);
1228
1229 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1230 softc->flags &= ~DA_FLAG_NEED_OTAG;
1231 softc->ordered_tag_count++;
1232 tag_code = MSG_ORDERED_Q_TAG;
1233 } else {
1234 tag_code = MSG_SIMPLE_Q_TAG;
1235 }
1236 scsi_read_write(&start_ccb->csio,
1237 /*retries*/da_retry_count,
1238 /*cbfcnp*/dadone,
1239 /*tag_action*/tag_code,
1240 /*read_op*/bp->bio_cmd == BIO_READ,
1241 /*byte2*/0,
1242 softc->minimum_cmd_size,
1243 /*lba*/bp->bio_pblkno,
1244 /*block_count*/bp->bio_bcount /
1245 softc->params.secsize,
1246 /*data_ptr*/ bp->bio_data,
1247 /*dxfer_len*/ bp->bio_bcount,
1248 /*sense_len*/SSD_FULL_SIZE,
1249 /*timeout*/da_default_timeout*1000);
1250 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1251
1252 /*
1253 * Block out any asyncronous callbacks
1254 * while we touch the pending ccb list.
1255 */
1256 oldspl = splcam();
1257 LIST_INSERT_HEAD(&softc->pending_ccbs,
1258 &start_ccb->ccb_h, periph_links.le);
1259 softc->outstanding_cmds++;
1260 splx(oldspl);
1261
1262 /* We expect a unit attention from this device */
1263 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1264 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1265 softc->flags &= ~DA_FLAG_RETRY_UA;
1266 }
1267
1268 start_ccb->ccb_h.ccb_bp = bp;
1269 bp = bioq_first(&softc->bio_queue);
1270 splx(s);
1271
1272 xpt_action(start_ccb);
1273 }
1274
1275 if (bp != NULL) {
1276 /* Have more work to do, so ensure we stay scheduled */
1277 xpt_schedule(periph, /* XXX priority */1);
1278 }
1279 break;
1280 }
1281 case DA_STATE_PROBE:
1282 {
1283 struct ccb_scsiio *csio;
1284 struct scsi_read_capacity_data *rcap;
1285
1286 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
1287 M_TEMP,
1288 M_NOWAIT);
1289 if (rcap == NULL) {
1290 printf("dastart: Couldn't malloc read_capacity data\n");
1291 /* da_free_periph??? */
1292 break;
1293 }
1294 csio = &start_ccb->csio;
1295 scsi_read_capacity(csio,
1296 /*retries*/4,
1297 dadone,
1298 MSG_SIMPLE_Q_TAG,
1299 rcap,
1300 SSD_FULL_SIZE,
1301 /*timeout*/5000);
1302 start_ccb->ccb_h.ccb_bp = NULL;
1303 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1304 xpt_action(start_ccb);
1305 break;
1306 }
1307 case DA_STATE_PROBE2:
1308 {
1309 struct ccb_scsiio *csio;
1310 struct scsi_read_capacity_data_long *rcaplong;
1311
1312 rcaplong = (struct scsi_read_capacity_data_long *)
1313 malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT);
1314 if (rcaplong == NULL) {
1315 printf("dastart: Couldn't malloc read_capacity data\n");
1316 /* da_free_periph??? */
1317 break;
1318 }
1319 csio = &start_ccb->csio;
1320 scsi_read_capacity_16(csio,
1321 /*retries*/ 4,
1322 /*cbfcnp*/ dadone,
1323 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1324 /*lba*/ 0,
1325 /*reladr*/ 0,
1326 /*pmi*/ 0,
1327 rcaplong,
1328 /*sense_len*/ SSD_FULL_SIZE,
1329 /*timeout*/ 60000);
1330 start_ccb->ccb_h.ccb_bp = NULL;
1331 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1332 xpt_action(start_ccb);
1333 break;
1334 }
1335 }
1336 }
1337
1338 static int
1339 cmd6workaround(union ccb *ccb)
1340 {
1341 struct scsi_rw_6 cmd6;
1342 struct scsi_rw_10 *cmd10;
1343 struct da_softc *softc;
1344 u_int8_t *cdb;
1345 int frozen;
1346
1347 cdb = ccb->csio.cdb_io.cdb_bytes;
1348
1349 /* Translation only possible if CDB is an array and cmd is R/W6 */
1350 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1351 (*cdb != READ_6 && *cdb != WRITE_6))
1352 return 0;
1353
1354 xpt_print_path(ccb->ccb_h.path);
1355 printf("READ(6)/WRITE(6) not supported, "
1356 "increasing minimum_cmd_size to 10.\n");
1357 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1358 softc->minimum_cmd_size = 10;
1359
1360 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1361 cmd10 = (struct scsi_rw_10 *)cdb;
1362 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1363 cmd10->byte2 = 0;
1364 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1365 cmd10->reserved = 0;
1366 scsi_ulto2b(cmd6.length, cmd10->length);
1367 cmd10->control = cmd6.control;
1368 ccb->csio.cdb_len = sizeof(*cmd10);
1369
1370 /* Requeue request, unfreezing queue if necessary */
1371 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1372 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1373 xpt_action(ccb);
1374 if (frozen) {
1375 cam_release_devq(ccb->ccb_h.path,
1376 /*relsim_flags*/0,
1377 /*reduction*/0,
1378 /*timeout*/0,
1379 /*getcount_only*/0);
1380 }
1381 return (ERESTART);
1382 }
1383
1384 static void
1385 dadone(struct cam_periph *periph, union ccb *done_ccb)
1386 {
1387 struct da_softc *softc;
1388 struct ccb_scsiio *csio;
1389
1390 softc = (struct da_softc *)periph->softc;
1391 csio = &done_ccb->csio;
1392 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1393 case DA_CCB_BUFFER_IO:
1394 {
1395 struct bio *bp;
1396 int oldspl;
1397
1398 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1399 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1400 int error;
1401 int s;
1402 int sf;
1403
1404 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1405 sf = SF_RETRY_UA;
1406 else
1407 sf = 0;
1408
1409 error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1410 if (error == ERESTART) {
1411 /*
1412 * A retry was scheuled, so
1413 * just return.
1414 */
1415 return;
1416 }
1417 if (error != 0) {
1418
1419 s = splbio();
1420
1421 if (error == ENXIO) {
1422 /*
1423 * Catastrophic error. Mark our pack as
1424 * invalid.
1425 */
1426 /* XXX See if this is really a media
1427 * change first.
1428 */
1429 xpt_print_path(periph->path);
1430 printf("Invalidating pack\n");
1431 softc->flags |= DA_FLAG_PACK_INVALID;
1432 }
1433
1434 /*
1435 * return all queued I/O with EIO, so that
1436 * the client can retry these I/Os in the
1437 * proper order should it attempt to recover.
1438 */
1439 bioq_flush(&softc->bio_queue, NULL, EIO);
1440 splx(s);
1441 bp->bio_error = error;
1442 bp->bio_resid = bp->bio_bcount;
1443 bp->bio_flags |= BIO_ERROR;
1444 } else {
1445 bp->bio_resid = csio->resid;
1446 bp->bio_error = 0;
1447 if (bp->bio_resid != 0)
1448 bp->bio_flags |= BIO_ERROR;
1449 }
1450 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1451 cam_release_devq(done_ccb->ccb_h.path,
1452 /*relsim_flags*/0,
1453 /*reduction*/0,
1454 /*timeout*/0,
1455 /*getcount_only*/0);
1456 } else {
1457 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1458 panic("REQ_CMP with QFRZN");
1459 bp->bio_resid = csio->resid;
1460 if (csio->resid > 0)
1461 bp->bio_flags |= BIO_ERROR;
1462 }
1463
1464 /*
1465 * Block out any asyncronous callbacks
1466 * while we touch the pending ccb list.
1467 */
1468 oldspl = splcam();
1469 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1470 softc->outstanding_cmds--;
1471 if (softc->outstanding_cmds == 0)
1472 softc->flags |= DA_FLAG_WENT_IDLE;
1473 splx(oldspl);
1474
1475 biodone(bp);
1476 break;
1477 }
1478 case DA_CCB_PROBE:
1479 case DA_CCB_PROBE2:
1480 {
1481 struct scsi_read_capacity_data *rdcap;
1482 struct scsi_read_capacity_data_long *rcaplong;
1483 char announce_buf[80];
1484
1485 rdcap = NULL;
1486 rcaplong = NULL;
1487 if (softc->state == DA_STATE_PROBE)
1488 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1489 else
1490 rcaplong = (struct scsi_read_capacity_data_long *)
1491 csio->data_ptr;
1492
1493 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1494 struct disk_params *dp;
1495 uint32_t block_size;
1496 uint64_t maxsector;
1497
1498 if (softc->state == DA_STATE_PROBE) {
1499 block_size = scsi_4btoul(rdcap->length);
1500 maxsector = scsi_4btoul(rdcap->addr);
1501
1502 /*
1503 * According to SBC-2, if the standard 10
1504 * byte READ CAPACITY command returns 2^32,
1505 * we should issue the 16 byte version of
1506 * the command, since the device in question
1507 * has more sectors than can be represented
1508 * with the short version of the command.
1509 */
1510 if (maxsector == 0xffffffff) {
1511 softc->state = DA_STATE_PROBE2;
1512 free(rdcap, M_TEMP);
1513 xpt_release_ccb(done_ccb);
1514 xpt_schedule(periph, /*priority*/5);
1515 return;
1516 }
1517 } else {
1518 block_size = scsi_4btoul(rcaplong->length);
1519 maxsector = scsi_8btou64(rcaplong->addr);
1520 }
1521 dasetgeom(periph, block_size, maxsector);
1522 dp = &softc->params;
1523 snprintf(announce_buf, sizeof(announce_buf),
1524 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)",
1525 (uintmax_t) (((uintmax_t)dp->secsize *
1526 dp->sectors) / (1024*1024)),
1527 (uintmax_t)dp->sectors,
1528 dp->secsize, dp->heads, dp->secs_per_track,
1529 dp->cylinders);
1530 } else {
1531 int error;
1532
1533 announce_buf[0] = '\0';
1534
1535 /*
1536 * Retry any UNIT ATTENTION type errors. They
1537 * are expected at boot.
1538 */
1539 error = daerror(done_ccb, CAM_RETRY_SELTO,
1540 SF_RETRY_UA|SF_NO_PRINT);
1541 if (error == ERESTART) {
1542 /*
1543 * A retry was scheuled, so
1544 * just return.
1545 */
1546 return;
1547 } else if (error != 0) {
1548 struct scsi_sense_data *sense;
1549 int asc, ascq;
1550 int sense_key, error_code;
1551 int have_sense;
1552 cam_status status;
1553 struct ccb_getdev cgd;
1554
1555 /* Don't wedge this device's queue */
1556 status = done_ccb->ccb_h.status;
1557 if ((status & CAM_DEV_QFRZN) != 0)
1558 cam_release_devq(done_ccb->ccb_h.path,
1559 /*relsim_flags*/0,
1560 /*reduction*/0,
1561 /*timeout*/0,
1562 /*getcount_only*/0);
1563
1564
1565 xpt_setup_ccb(&cgd.ccb_h,
1566 done_ccb->ccb_h.path,
1567 /* priority */ 1);
1568 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1569 xpt_action((union ccb *)&cgd);
1570
1571 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1572 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1573 || ((status & CAM_AUTOSNS_VALID) == 0))
1574 have_sense = FALSE;
1575 else
1576 have_sense = TRUE;
1577
1578 if (have_sense) {
1579 sense = &csio->sense_data;
1580 scsi_extract_sense(sense, &error_code,
1581 &sense_key,
1582 &asc, &ascq);
1583 }
1584 /*
1585 * Attach to anything that claims to be a
1586 * direct access or optical disk device,
1587 * as long as it doesn't return a "Logical
1588 * unit not supported" (0x25) error.
1589 */
1590 if ((have_sense) && (asc != 0x25)
1591 && (error_code == SSD_CURRENT_ERROR)) {
1592 const char *sense_key_desc;
1593 const char *asc_desc;
1594
1595 scsi_sense_desc(sense_key, asc, ascq,
1596 &cgd.inq_data,
1597 &sense_key_desc,
1598 &asc_desc);
1599 snprintf(announce_buf,
1600 sizeof(announce_buf),
1601 "Attempt to query device "
1602 "size failed: %s, %s",
1603 sense_key_desc,
1604 asc_desc);
1605 } else {
1606 if (have_sense)
1607 scsi_sense_print(
1608 &done_ccb->csio);
1609 else {
1610 xpt_print_path(periph->path);
1611 printf("got CAM status %#x\n",
1612 done_ccb->ccb_h.status);
1613 }
1614
1615 xpt_print_path(periph->path);
1616 printf("fatal error, failed"
1617 " to attach to device\n");
1618
1619 /*
1620 * Free up resources.
1621 */
1622 cam_periph_invalidate(periph);
1623 }
1624 }
1625 }
1626 free(csio->data_ptr, M_TEMP);
1627 if (announce_buf[0] != '\0') {
1628 xpt_announce_periph(periph, announce_buf);
1629 /*
1630 * Create our sysctl variables, now that we know
1631 * we have successfully attached.
1632 */
1633 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1634 }
1635 softc->state = DA_STATE_NORMAL;
1636 /*
1637 * Since our peripheral may be invalidated by an error
1638 * above or an external event, we must release our CCB
1639 * before releasing the probe lock on the peripheral.
1640 * The peripheral will only go away once the last lock
1641 * is removed, and we need it around for the CCB release
1642 * operation.
1643 */
1644 xpt_release_ccb(done_ccb);
1645 cam_periph_unlock(periph);
1646 return;
1647 }
1648 case DA_CCB_WAITING:
1649 {
1650 /* Caller will release the CCB */
1651 wakeup(&done_ccb->ccb_h.cbfcnp);
1652 return;
1653 }
1654 case DA_CCB_DUMP:
1655 /* No-op. We're polling */
1656 return;
1657 default:
1658 break;
1659 }
1660 xpt_release_ccb(done_ccb);
1661 }
1662
1663 static int
1664 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1665 {
1666 struct da_softc *softc;
1667 struct cam_periph *periph;
1668 int error;
1669
1670 periph = xpt_path_periph(ccb->ccb_h.path);
1671 softc = (struct da_softc *)periph->softc;
1672
1673 /*
1674 * Automatically detect devices that do not support
1675 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1676 */
1677 error = 0;
1678 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1679 error = cmd6workaround(ccb);
1680 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1681 CAM_SCSI_STATUS_ERROR)
1682 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1683 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1684 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1685 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1686 int sense_key, error_code, asc, ascq;
1687
1688 scsi_extract_sense(&ccb->csio.sense_data,
1689 &error_code, &sense_key, &asc, &ascq);
1690 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1691 error = cmd6workaround(ccb);
1692 }
1693 if (error == ERESTART)
1694 return (ERESTART);
1695
1696 /*
1697 * XXX
1698 * Until we have a better way of doing pack validation,
1699 * don't treat UAs as errors.
1700 */
1701 sense_flags |= SF_RETRY_UA;
1702 return(cam_periph_error(ccb, cam_flags, sense_flags,
1703 &softc->saved_ccb));
1704 }
1705
1706 static void
1707 daprevent(struct cam_periph *periph, int action)
1708 {
1709 struct da_softc *softc;
1710 union ccb *ccb;
1711 int error;
1712
1713 softc = (struct da_softc *)periph->softc;
1714
1715 if (((action == PR_ALLOW)
1716 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1717 || ((action == PR_PREVENT)
1718 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1719 return;
1720 }
1721
1722 ccb = cam_periph_getccb(periph, /*priority*/1);
1723
1724 scsi_prevent(&ccb->csio,
1725 /*retries*/1,
1726 /*cbcfp*/dadone,
1727 MSG_SIMPLE_Q_TAG,
1728 action,
1729 SSD_FULL_SIZE,
1730 5000);
1731
1732 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
1733 SF_RETRY_UA, softc->disk->d_devstat);
1734
1735 if (error == 0) {
1736 if (action == PR_ALLOW)
1737 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1738 else
1739 softc->flags |= DA_FLAG_PACK_LOCKED;
1740 }
1741
1742 xpt_release_ccb(ccb);
1743 }
1744
1745 static int
1746 dagetcapacity(struct cam_periph *periph)
1747 {
1748 struct da_softc *softc;
1749 union ccb *ccb;
1750 struct scsi_read_capacity_data *rcap;
1751 struct scsi_read_capacity_data_long *rcaplong;
1752 uint32_t block_len;
1753 uint64_t maxsector;
1754 int error;
1755
1756 softc = (struct da_softc *)periph->softc;
1757 block_len = 0;
1758 maxsector = 0;
1759 error = 0;
1760
1761 /* Do a read capacity */
1762 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
1763 M_TEMP,
1764 M_WAITOK);
1765
1766 ccb = cam_periph_getccb(periph, /*priority*/1);
1767 scsi_read_capacity(&ccb->csio,
1768 /*retries*/4,
1769 /*cbfncp*/dadone,
1770 MSG_SIMPLE_Q_TAG,
1771 rcap,
1772 SSD_FULL_SIZE,
1773 /*timeout*/60000);
1774 ccb->ccb_h.ccb_bp = NULL;
1775
1776 error = cam_periph_runccb(ccb, daerror,
1777 /*cam_flags*/CAM_RETRY_SELTO,
1778 /*sense_flags*/SF_RETRY_UA,
1779 softc->disk->d_devstat);
1780
1781 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1782 cam_release_devq(ccb->ccb_h.path,
1783 /*relsim_flags*/0,
1784 /*reduction*/0,
1785 /*timeout*/0,
1786 /*getcount_only*/0);
1787
1788 if (error == 0) {
1789 block_len = scsi_4btoul(rcap->length);
1790 maxsector = scsi_4btoul(rcap->addr);
1791
1792 if (maxsector != 0xffffffff)
1793 goto done;
1794 } else
1795 goto done;
1796
1797 rcaplong = (struct scsi_read_capacity_data_long *)rcap;
1798
1799 scsi_read_capacity_16(&ccb->csio,
1800 /*retries*/ 4,
1801 /*cbfcnp*/ dadone,
1802 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1803 /*lba*/ 0,
1804 /*reladr*/ 0,
1805 /*pmi*/ 0,
1806 rcaplong,
1807 /*sense_len*/ SSD_FULL_SIZE,
1808 /*timeout*/ 60000);
1809 ccb->ccb_h.ccb_bp = NULL;
1810
1811 error = cam_periph_runccb(ccb, daerror,
1812 /*cam_flags*/CAM_RETRY_SELTO,
1813 /*sense_flags*/SF_RETRY_UA,
1814 softc->disk->d_devstat);
1815
1816 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1817 cam_release_devq(ccb->ccb_h.path,
1818 /*relsim_flags*/0,
1819 /*reduction*/0,
1820 /*timeout*/0,
1821 /*getcount_only*/0);
1822
1823 if (error == 0) {
1824 block_len = scsi_4btoul(rcaplong->length);
1825 maxsector = scsi_8btou64(rcaplong->addr);
1826 }
1827
1828 done:
1829
1830 if (error == 0)
1831 dasetgeom(periph, block_len, maxsector);
1832
1833 xpt_release_ccb(ccb);
1834
1835 free(rcap, M_TEMP);
1836
1837 return (error);
1838 }
1839
1840 static void
1841 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
1842 {
1843 struct ccb_calc_geometry ccg;
1844 struct da_softc *softc;
1845 struct disk_params *dp;
1846
1847 softc = (struct da_softc *)periph->softc;
1848
1849 dp = &softc->params;
1850 dp->secsize = block_len;
1851 dp->sectors = maxsector + 1;
1852 /*
1853 * Have the controller provide us with a geometry
1854 * for this disk. The only time the geometry
1855 * matters is when we boot and the controller
1856 * is the only one knowledgeable enough to come
1857 * up with something that will make this a bootable
1858 * device.
1859 */
1860 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1861 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1862 ccg.block_size = dp->secsize;
1863 ccg.volume_size = dp->sectors;
1864 ccg.heads = 0;
1865 ccg.secs_per_track = 0;
1866 ccg.cylinders = 0;
1867 xpt_action((union ccb*)&ccg);
1868 dp->heads = ccg.heads;
1869 dp->secs_per_track = ccg.secs_per_track;
1870 dp->cylinders = ccg.cylinders;
1871 }
1872
1873 static void
1874 dasendorderedtag(void *arg)
1875 {
1876 struct da_softc *softc;
1877 int s;
1878
1879 for (softc = SLIST_FIRST(&softc_list);
1880 softc != NULL;
1881 softc = SLIST_NEXT(softc, links)) {
1882 s = splsoftcam();
1883 if ((softc->ordered_tag_count == 0)
1884 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
1885 softc->flags |= DA_FLAG_NEED_OTAG;
1886 }
1887 if (softc->outstanding_cmds > 0)
1888 softc->flags &= ~DA_FLAG_WENT_IDLE;
1889
1890 softc->ordered_tag_count = 0;
1891 splx(s);
1892 }
1893 /* Queue us up again */
1894 timeout(dasendorderedtag, NULL,
1895 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
1896 }
1897
1898 /*
1899 * Step through all DA peripheral drivers, and if the device is still open,
1900 * sync the disk cache to physical media.
1901 */
1902 static void
1903 dashutdown(void * arg, int howto)
1904 {
1905 struct cam_periph *periph;
1906 struct da_softc *softc;
1907
1908 TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
1909 union ccb ccb;
1910 softc = (struct da_softc *)periph->softc;
1911
1912 /*
1913 * We only sync the cache if the drive is still open, and
1914 * if the drive is capable of it..
1915 */
1916 if (((softc->flags & DA_FLAG_OPEN) == 0)
1917 || (softc->quirks & DA_Q_NO_SYNC_CACHE))
1918 continue;
1919
1920 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
1921
1922 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
1923 scsi_synchronize_cache(&ccb.csio,
1924 /*retries*/1,
1925 /*cbfcnp*/dadone,
1926 MSG_SIMPLE_Q_TAG,
1927 /*begin_lba*/0, /* whole disk */
1928 /*lb_count*/0,
1929 SSD_FULL_SIZE,
1930 60 * 60 * 1000);
1931
1932 xpt_polled_action(&ccb);
1933
1934 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1935 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
1936 CAM_SCSI_STATUS_ERROR)
1937 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
1938 int error_code, sense_key, asc, ascq;
1939
1940 scsi_extract_sense(&ccb.csio.sense_data,
1941 &error_code, &sense_key,
1942 &asc, &ascq);
1943
1944 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1945 scsi_sense_print(&ccb.csio);
1946 } else {
1947 xpt_print_path(periph->path);
1948 printf("Synchronize cache failed, status "
1949 "== 0x%x, scsi status == 0x%x\n",
1950 ccb.ccb_h.status, ccb.csio.scsi_status);
1951 }
1952 }
1953
1954 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1955 cam_release_devq(ccb.ccb_h.path,
1956 /*relsim_flags*/0,
1957 /*reduction*/0,
1958 /*timeout*/0,
1959 /*getcount_only*/0);
1960
1961 }
1962 }
1963
1964 #else /* !_KERNEL */
1965
1966 /*
1967 * XXX This is only left out of the kernel build to silence warnings. If,
1968 * for some reason this function is used in the kernel, the ifdefs should
1969 * be moved so it is included both in the kernel and userland.
1970 */
1971 void
1972 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
1973 void (*cbfcnp)(struct cam_periph *, union ccb *),
1974 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
1975 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
1976 u_int32_t timeout)
1977 {
1978 struct scsi_format_unit *scsi_cmd;
1979
1980 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
1981 scsi_cmd->opcode = FORMAT_UNIT;
1982 scsi_cmd->byte2 = byte2;
1983 scsi_ulto2b(ileave, scsi_cmd->interleave);
1984
1985 cam_fill_csio(csio,
1986 retries,
1987 cbfcnp,
1988 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
1989 tag_action,
1990 data_ptr,
1991 dxfer_len,
1992 sense_len,
1993 sizeof(*scsi_cmd),
1994 timeout);
1995 }
1996
1997 #endif /* _KERNEL */
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