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("$FreeBSD$");
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 #include <sys/lock.h>
41 #include <sys/mutex.h>
42 #include <sys/conf.h>
43 #include <sys/devicestat.h>
44 #include <sys/eventhandler.h>
45 #include <sys/malloc.h>
46 #include <sys/cons.h>
47 #include <geom/geom_disk.h>
48 #endif /* _KERNEL */
49
50 #ifndef _KERNEL
51 #include <stdio.h>
52 #include <string.h>
53 #endif /* _KERNEL */
54
55 #include <cam/cam.h>
56 #include <cam/cam_ccb.h>
57 #include <cam/cam_periph.h>
58 #include <cam/cam_xpt_periph.h>
59 #include <cam/cam_sim.h>
60
61 #include <cam/scsi/scsi_message.h>
62
63 #ifndef _KERNEL
64 #include <cam/scsi/scsi_da.h>
65 #endif /* !_KERNEL */
66
67 #ifdef _KERNEL
68 typedef enum {
69 DA_STATE_PROBE,
70 DA_STATE_PROBE2,
71 DA_STATE_NORMAL
72 } da_state;
73
74 typedef enum {
75 DA_FLAG_PACK_INVALID = 0x001,
76 DA_FLAG_NEW_PACK = 0x002,
77 DA_FLAG_PACK_LOCKED = 0x004,
78 DA_FLAG_PACK_REMOVABLE = 0x008,
79 DA_FLAG_TAGGED_QUEUING = 0x010,
80 DA_FLAG_NEED_OTAG = 0x020,
81 DA_FLAG_WENT_IDLE = 0x040,
82 DA_FLAG_RETRY_UA = 0x080,
83 DA_FLAG_OPEN = 0x100,
84 DA_FLAG_SCTX_INIT = 0x200
85 } da_flags;
86
87 typedef enum {
88 DA_Q_NONE = 0x00,
89 DA_Q_NO_SYNC_CACHE = 0x01,
90 DA_Q_NO_6_BYTE = 0x02,
91 DA_Q_NO_PREVENT = 0x04
92 } da_quirks;
93
94 typedef enum {
95 DA_CCB_PROBE = 0x01,
96 DA_CCB_PROBE2 = 0x02,
97 DA_CCB_BUFFER_IO = 0x03,
98 DA_CCB_WAITING = 0x04,
99 DA_CCB_DUMP = 0x05,
100 DA_CCB_TYPE_MASK = 0x0F,
101 DA_CCB_RETRY_UA = 0x10
102 } da_ccb_state;
103
104 /* Offsets into our private area for storing information */
105 #define ccb_state ppriv_field0
106 #define ccb_bp ppriv_ptr1
107
108 struct disk_params {
109 u_int8_t heads;
110 u_int32_t cylinders;
111 u_int8_t secs_per_track;
112 u_int32_t secsize; /* Number of bytes/sector */
113 u_int64_t sectors; /* total number sectors */
114 };
115
116 struct da_softc {
117 struct bio_queue_head bio_queue;
118 SLIST_ENTRY(da_softc) links;
119 LIST_HEAD(, ccb_hdr) pending_ccbs;
120 da_state state;
121 da_flags flags;
122 da_quirks quirks;
123 int minimum_cmd_size;
124 int ordered_tag_count;
125 int outstanding_cmds;
126 struct disk_params params;
127 struct disk *disk;
128 union ccb saved_ccb;
129 struct task sysctl_task;
130 struct sysctl_ctx_list sysctl_ctx;
131 struct sysctl_oid *sysctl_tree;
132 struct callout sendordered_c;
133 };
134
135 struct da_quirk_entry {
136 struct scsi_inquiry_pattern inq_pat;
137 da_quirks quirks;
138 };
139
140 static const char quantum[] = "QUANTUM";
141 static const char microp[] = "MICROP";
142
143 static struct da_quirk_entry da_quirk_table[] =
144 {
145 /* SPI, FC devices */
146 {
147 /*
148 * Fujitsu M2513A MO drives.
149 * Tested devices: M2513A2 firmware versions 1200 & 1300.
150 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
151 * Reported by: W.Scholten <whs@xs4all.nl>
152 */
153 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
154 /*quirks*/ DA_Q_NO_SYNC_CACHE
155 },
156 {
157 /* See above. */
158 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
159 /*quirks*/ DA_Q_NO_SYNC_CACHE
160 },
161 {
162 /*
163 * This particular Fujitsu drive doesn't like the
164 * synchronize cache command.
165 * Reported by: Tom Jackson <toj@gorilla.net>
166 */
167 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
168 /*quirks*/ DA_Q_NO_SYNC_CACHE
169 },
170 {
171 /*
172 * This drive doesn't like the synchronize cache command
173 * either. Reported by: Matthew Jacob <mjacob@feral.com>
174 * in NetBSD PR kern/6027, August 24, 1998.
175 */
176 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
177 /*quirks*/ DA_Q_NO_SYNC_CACHE
178 },
179 {
180 /*
181 * This drive doesn't like the synchronize cache command
182 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
183 * (PR 8882).
184 */
185 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
186 /*quirks*/ DA_Q_NO_SYNC_CACHE
187 },
188 {
189 /*
190 * Doesn't like the synchronize cache command.
191 * Reported by: Blaz Zupan <blaz@gold.amis.net>
192 */
193 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
194 /*quirks*/ DA_Q_NO_SYNC_CACHE
195 },
196 {
197 /*
198 * Doesn't like the synchronize cache command.
199 * Reported by: Blaz Zupan <blaz@gold.amis.net>
200 */
201 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
202 /*quirks*/ DA_Q_NO_SYNC_CACHE
203 },
204 {
205 /*
206 * Doesn't like the synchronize cache command.
207 */
208 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
209 /*quirks*/ DA_Q_NO_SYNC_CACHE
210 },
211 {
212 /*
213 * Doesn't like the synchronize cache command.
214 * Reported by: walter@pelissero.de
215 */
216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
217 /*quirks*/ DA_Q_NO_SYNC_CACHE
218 },
219 {
220 /*
221 * Doesn't work correctly with 6 byte reads/writes.
222 * Returns illegal request, and points to byte 9 of the
223 * 6-byte CDB.
224 * Reported by: Adam McDougall <bsdx@spawnet.com>
225 */
226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
227 /*quirks*/ DA_Q_NO_6_BYTE
228 },
229 {
230 /* See above. */
231 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
232 /*quirks*/ DA_Q_NO_6_BYTE
233 },
234 {
235 /*
236 * Doesn't like the synchronize cache command.
237 * Reported by: walter@pelissero.de
238 */
239 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
240 /*quirks*/ DA_Q_NO_SYNC_CACHE
241 },
242 {
243 /*
244 * The CISS RAID controllers do not support SYNC_CACHE
245 */
246 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
247 /*quirks*/ DA_Q_NO_SYNC_CACHE
248 },
249 /* USB mass storage devices supported by umass(4) */
250 {
251 /*
252 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
253 * PR: kern/51675
254 */
255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
256 /*quirks*/ DA_Q_NO_SYNC_CACHE
257 },
258 {
259 /*
260 * Power Quotient Int. (PQI) USB flash key
261 * PR: kern/53067
262 */
263 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
264 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
265 },
266 {
267 /*
268 * Creative Nomad MUVO mp3 player (USB)
269 * PR: kern/53094
270 */
271 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
272 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
273 },
274 {
275 /*
276 * Jungsoft NEXDISK USB flash key
277 * PR: kern/54737
278 */
279 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
280 /*quirks*/ DA_Q_NO_SYNC_CACHE
281 },
282 {
283 /*
284 * FreeDik USB Mini Data Drive
285 * PR: kern/54786
286 */
287 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
288 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
289 },
290 {
291 /*
292 * Sigmatel USB Flash MP3 Player
293 * PR: kern/57046
294 */
295 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
296 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
297 },
298 {
299 /*
300 * Neuros USB Digital Audio Computer
301 * PR: kern/63645
302 */
303 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
304 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
305 },
306 {
307 /*
308 * SEAGRAND NP-900 MP3 Player
309 * PR: kern/64563
310 */
311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
312 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
313 },
314 {
315 /*
316 * iRiver iFP MP3 player (with UMS Firmware)
317 * PR: kern/54881, i386/63941, kern/66124
318 */
319 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
320 /*quirks*/ DA_Q_NO_SYNC_CACHE
321 },
322 {
323 /*
324 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
325 * PR: kern/70158
326 */
327 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
328 /*quirks*/ DA_Q_NO_SYNC_CACHE
329 },
330 {
331 /*
332 * ZICPlay USB MP3 Player with FM
333 * PR: kern/75057
334 */
335 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
336 /*quirks*/ DA_Q_NO_SYNC_CACHE
337 },
338 {
339 /*
340 * TEAC USB floppy mechanisms
341 */
342 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
343 /*quirks*/ DA_Q_NO_SYNC_CACHE
344 },
345 {
346 /*
347 * Kingston DataTraveler II+ USB Pen-Drive.
348 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
349 */
350 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
351 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
352 },
353 {
354 /*
355 * Motorola E398 Mobile Phone (TransFlash memory card).
356 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
357 * PR: usb/89889
358 */
359 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
360 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
361 },
362 {
363 /*
364 * Qware BeatZkey! Pro
365 * PR: usb/79164
366 */
367 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
368 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
369 },
370 {
371 /*
372 * Time DPA20B 1GB MP3 Player
373 * PR: usb/81846
374 */
375 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
376 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
377 },
378 {
379 /*
380 * Samsung USB key 128Mb
381 * PR: usb/90081
382 */
383 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
384 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
385 },
386 {
387 /*
388 * Kingston DataTraveler 2.0 USB Flash memory.
389 * PR: usb/89196
390 */
391 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
392 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
393 },
394 {
395 /*
396 * Creative MUVO Slim mp3 player (USB)
397 * PR: usb/86131
398 */
399 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
400 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
401 },
402 {
403 /*
404 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
405 * PR: usb/80487
406 */
407 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
408 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
409 },
410 {
411 /*
412 * SanDisk Micro Cruzer 128MB
413 * PR: usb/75970
414 */
415 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
416 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
417 },
418 {
419 /*
420 * TOSHIBA TransMemory USB sticks
421 * PR: kern/94660
422 */
423 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
424 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
425 },
426 {
427 /*
428 * PNY USB Flash keys
429 * PR: usb/75578, usb/72344, usb/65436
430 */
431 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
432 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
433 },
434 {
435 /*
436 * Genesys 6-in-1 Card Reader
437 * PR: usb/94647
438 */
439 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
440 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
441 },
442 {
443 /*
444 * Rekam Digital CAMERA
445 * PR: usb/98713
446 */
447 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
448 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
449 },
450 {
451 /*
452 * iRiver H10 MP3 player
453 * PR: usb/102547
454 */
455 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
456 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
457 },
458 {
459 /*
460 * iRiver U10 MP3 player
461 * PR: usb/92306
462 */
463 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
464 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
465 },
466 {
467 /*
468 * X-Micro Flash Disk
469 * PR: usb/96901
470 */
471 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
472 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
473 },
474 {
475 /*
476 * EasyMP3 EM732X USB 2.0 Flash MP3 Player
477 * PR: usb/96546
478 */
479 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
480 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
481 },
482 {
483 /*
484 * Denver MP3 player
485 * PR: usb/107101
486 */
487 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
488 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
489 },
490 {
491 /*
492 * Philips USB Key Audio KEY013
493 * PR: usb/68412
494 */
495 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
496 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
497 },
498 {
499 /*
500 * JNC MP3 Player
501 * PR: usb/94439
502 */
503 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
504 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
505 },
506 {
507 /*
508 * SAMSUNG MP0402H
509 * PR: usb/108427
510 */
511 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
512 /*quirks*/ DA_Q_NO_SYNC_CACHE
513 },
514 {
515 /*
516 * I/O Magic USB flash - Giga Bank
517 * PR: usb/108810
518 */
519 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
520 /*quirks*/ DA_Q_NO_SYNC_CACHE
521 },
522 {
523 /*
524 * JoyFly 128mb USB Flash Drive
525 * PR: 96133
526 */
527 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
528 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
529 },
530 {
531 /*
532 * ChipsBnk usb stick
533 * PR: 103702
534 */
535 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
536 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
537 },
538 {
539 /*
540 * Samsung YP-U3 mp3-player
541 * PR: 125398
542 */
543 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
544 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
545 },
546 {
547 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
548 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
549 }
550 };
551
552 static disk_strategy_t dastrategy;
553 static dumper_t dadump;
554 static periph_init_t dainit;
555 static void daasync(void *callback_arg, u_int32_t code,
556 struct cam_path *path, void *arg);
557 static void dasysctlinit(void *context, int pending);
558 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
559 static periph_ctor_t daregister;
560 static periph_dtor_t dacleanup;
561 static periph_start_t dastart;
562 static periph_oninv_t daoninvalidate;
563 static void dadone(struct cam_periph *periph,
564 union ccb *done_ccb);
565 static int daerror(union ccb *ccb, u_int32_t cam_flags,
566 u_int32_t sense_flags);
567 static void daprevent(struct cam_periph *periph, int action);
568 static int dagetcapacity(struct cam_periph *periph);
569 static void dasetgeom(struct cam_periph *periph, uint32_t block_len,
570 uint64_t maxsector);
571 static timeout_t dasendorderedtag;
572 static void dashutdown(void *arg, int howto);
573
574 #ifndef DA_DEFAULT_TIMEOUT
575 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
576 #endif
577
578 #ifndef DA_DEFAULT_RETRY
579 #define DA_DEFAULT_RETRY 4
580 #endif
581
582 #ifndef DA_DEFAULT_SEND_ORDERED
583 #define DA_DEFAULT_SEND_ORDERED 1
584 #endif
585
586
587 static int da_retry_count = DA_DEFAULT_RETRY;
588 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
589 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
590
591 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
592 "CAM Direct Access Disk driver");
593 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
594 &da_retry_count, 0, "Normal I/O retry count");
595 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
596 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
597 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
598 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
599 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
600 &da_send_ordered, 0, "Send Ordered Tags");
601 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
602
603 /*
604 * DA_ORDEREDTAG_INTERVAL determines how often, relative
605 * to the default timeout, we check to see whether an ordered
606 * tagged transaction is appropriate to prevent simple tag
607 * starvation. Since we'd like to ensure that there is at least
608 * 1/2 of the timeout length left for a starved transaction to
609 * complete after we've sent an ordered tag, we must poll at least
610 * four times in every timeout period. This takes care of the worst
611 * case where a starved transaction starts during an interval that
612 * meets the requirement "don't send an ordered tag" test so it takes
613 * us two intervals to determine that a tag must be sent.
614 */
615 #ifndef DA_ORDEREDTAG_INTERVAL
616 #define DA_ORDEREDTAG_INTERVAL 4
617 #endif
618
619 static struct periph_driver dadriver =
620 {
621 dainit, "da",
622 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
623 };
624
625 PERIPHDRIVER_DECLARE(da, dadriver);
626
627 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
628
629 static int
630 daopen(struct disk *dp)
631 {
632 struct cam_periph *periph;
633 struct da_softc *softc;
634 int unit;
635 int error;
636
637 periph = (struct cam_periph *)dp->d_drv1;
638 if (periph == NULL) {
639 return (ENXIO);
640 }
641
642 if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
643 return(ENXIO);
644 }
645
646 cam_periph_lock(periph);
647 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
648 cam_periph_unlock(periph);
649 cam_periph_release(periph);
650 return (error);
651 }
652
653 unit = periph->unit_number;
654 softc = (struct da_softc *)periph->softc;
655 softc->flags |= DA_FLAG_OPEN;
656
657 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
658 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
659 unit));
660
661 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
662 /* Invalidate our pack information. */
663 softc->flags &= ~DA_FLAG_PACK_INVALID;
664 }
665
666 error = dagetcapacity(periph);
667
668 if (error == 0) {
669
670 softc->disk->d_sectorsize = softc->params.secsize;
671 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
672 /* XXX: these are not actually "firmware" values, so they may be wrong */
673 softc->disk->d_fwsectors = softc->params.secs_per_track;
674 softc->disk->d_fwheads = softc->params.heads;
675 softc->disk->d_devstat->block_size = softc->params.secsize;
676 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
677 }
678
679 if (error == 0) {
680 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
681 (softc->quirks & DA_Q_NO_PREVENT) == 0)
682 daprevent(periph, PR_PREVENT);
683 } else {
684 softc->flags &= ~DA_FLAG_OPEN;
685 cam_periph_release(periph);
686 }
687 cam_periph_unhold(periph);
688 cam_periph_unlock(periph);
689 return (error);
690 }
691
692 static int
693 daclose(struct disk *dp)
694 {
695 struct cam_periph *periph;
696 struct da_softc *softc;
697 int error;
698
699 periph = (struct cam_periph *)dp->d_drv1;
700 if (periph == NULL)
701 return (ENXIO);
702
703 cam_periph_lock(periph);
704 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
705 cam_periph_unlock(periph);
706 cam_periph_release(periph);
707 return (error);
708 }
709
710 softc = (struct da_softc *)periph->softc;
711
712 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
713 union ccb *ccb;
714
715 ccb = cam_periph_getccb(periph, /*priority*/1);
716
717 scsi_synchronize_cache(&ccb->csio,
718 /*retries*/1,
719 /*cbfcnp*/dadone,
720 MSG_SIMPLE_Q_TAG,
721 /*begin_lba*/0,/* Cover the whole disk */
722 /*lb_count*/0,
723 SSD_FULL_SIZE,
724 5 * 60 * 1000);
725
726 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
727 /*sense_flags*/SF_RETRY_UA,
728 softc->disk->d_devstat);
729
730 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
731 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
732 CAM_SCSI_STATUS_ERROR) {
733 int asc, ascq;
734 int sense_key, error_code;
735
736 scsi_extract_sense(&ccb->csio.sense_data,
737 &error_code,
738 &sense_key,
739 &asc, &ascq);
740 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
741 scsi_sense_print(&ccb->csio);
742 } else {
743 xpt_print(periph->path, "Synchronize cache "
744 "failed, status == 0x%x, scsi status == "
745 "0x%x\n", ccb->csio.ccb_h.status,
746 ccb->csio.scsi_status);
747 }
748 }
749
750 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
751 cam_release_devq(ccb->ccb_h.path,
752 /*relsim_flags*/0,
753 /*reduction*/0,
754 /*timeout*/0,
755 /*getcount_only*/0);
756
757 xpt_release_ccb(ccb);
758
759 }
760
761 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
762 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
763 daprevent(periph, PR_ALLOW);
764 /*
765 * If we've got removeable media, mark the blocksize as
766 * unavailable, since it could change when new media is
767 * inserted.
768 */
769 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
770 }
771
772 softc->flags &= ~DA_FLAG_OPEN;
773 cam_periph_unhold(periph);
774 cam_periph_release(periph);
775 cam_periph_unlock(periph);
776 return (0);
777 }
778
779 /*
780 * Actually translate the requested transfer into one the physical driver
781 * can understand. The transfer is described by a buf and will include
782 * only one physical transfer.
783 */
784 static void
785 dastrategy(struct bio *bp)
786 {
787 struct cam_periph *periph;
788 struct da_softc *softc;
789
790 periph = (struct cam_periph *)bp->bio_disk->d_drv1;
791 if (periph == NULL) {
792 biofinish(bp, NULL, ENXIO);
793 return;
794 }
795 softc = (struct da_softc *)periph->softc;
796
797 cam_periph_lock(periph);
798
799 #if 0
800 /*
801 * check it's not too big a transfer for our adapter
802 */
803 scsi_minphys(bp,&sd_switch);
804 #endif
805
806 /*
807 * Mask interrupts so that the pack cannot be invalidated until
808 * after we are in the queue. Otherwise, we might not properly
809 * clean up one of the buffers.
810 */
811
812 /*
813 * If the device has been made invalid, error out
814 */
815 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
816 cam_periph_unlock(periph);
817 biofinish(bp, NULL, ENXIO);
818 return;
819 }
820
821 /*
822 * Place it in the queue of disk activities for this disk
823 */
824 bioq_disksort(&softc->bio_queue, bp);
825
826 /*
827 * Schedule ourselves for performing the work.
828 */
829 xpt_schedule(periph, /* XXX priority */1);
830 cam_periph_unlock(periph);
831
832 return;
833 }
834
835 static int
836 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
837 {
838 struct cam_periph *periph;
839 struct da_softc *softc;
840 u_int secsize;
841 struct ccb_scsiio csio;
842 struct disk *dp;
843
844 dp = arg;
845 periph = dp->d_drv1;
846 if (periph == NULL)
847 return (ENXIO);
848 softc = (struct da_softc *)periph->softc;
849 cam_periph_lock(periph);
850 secsize = softc->params.secsize;
851
852 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
853 cam_periph_unlock(periph);
854 return (ENXIO);
855 }
856
857 if (length > 0) {
858 periph->flags |= CAM_PERIPH_POLLED;
859 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
860 csio.ccb_h.ccb_state = DA_CCB_DUMP;
861 scsi_read_write(&csio,
862 /*retries*/1,
863 dadone,
864 MSG_ORDERED_Q_TAG,
865 /*read*/FALSE,
866 /*byte2*/0,
867 /*minimum_cmd_size*/ softc->minimum_cmd_size,
868 offset / secsize,
869 length / secsize,
870 /*data_ptr*/(u_int8_t *) virtual,
871 /*dxfer_len*/length,
872 /*sense_len*/SSD_FULL_SIZE,
873 DA_DEFAULT_TIMEOUT * 1000);
874 xpt_polled_action((union ccb *)&csio);
875
876 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
877 printf("Aborting dump due to I/O error.\n");
878 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
879 CAM_SCSI_STATUS_ERROR)
880 scsi_sense_print(&csio);
881 else
882 printf("status == 0x%x, scsi status == 0x%x\n",
883 csio.ccb_h.status, csio.scsi_status);
884 periph->flags |= CAM_PERIPH_POLLED;
885 return(EIO);
886 }
887 cam_periph_unlock(periph);
888 return(0);
889 }
890
891 /*
892 * Sync the disk cache contents to the physical media.
893 */
894 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
895
896 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
897 csio.ccb_h.ccb_state = DA_CCB_DUMP;
898 scsi_synchronize_cache(&csio,
899 /*retries*/1,
900 /*cbfcnp*/dadone,
901 MSG_SIMPLE_Q_TAG,
902 /*begin_lba*/0,/* Cover the whole disk */
903 /*lb_count*/0,
904 SSD_FULL_SIZE,
905 5 * 60 * 1000);
906 xpt_polled_action((union ccb *)&csio);
907
908 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
909 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
910 CAM_SCSI_STATUS_ERROR) {
911 int asc, ascq;
912 int sense_key, error_code;
913
914 scsi_extract_sense(&csio.sense_data,
915 &error_code,
916 &sense_key,
917 &asc, &ascq);
918 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
919 scsi_sense_print(&csio);
920 } else {
921 xpt_print(periph->path, "Synchronize cache "
922 "failed, status == 0x%x, scsi status == "
923 "0x%x\n", csio.ccb_h.status,
924 csio.scsi_status);
925 }
926 }
927 }
928 periph->flags &= ~CAM_PERIPH_POLLED;
929 cam_periph_unlock(periph);
930 return (0);
931 }
932
933 static void
934 dainit(void)
935 {
936 cam_status status;
937
938 /*
939 * Install a global async callback. This callback will
940 * receive async callbacks like "new device found".
941 */
942 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
943
944 if (status != CAM_REQ_CMP) {
945 printf("da: Failed to attach master async callback "
946 "due to status 0x%x!\n", status);
947 } else if (da_send_ordered) {
948
949 /* Register our shutdown event handler */
950 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
951 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
952 printf("dainit: shutdown event registration failed!\n");
953 }
954 }
955
956 static void
957 daoninvalidate(struct cam_periph *periph)
958 {
959 struct da_softc *softc;
960
961 softc = (struct da_softc *)periph->softc;
962
963 /*
964 * De-register any async callbacks.
965 */
966 xpt_register_async(0, daasync, periph, periph->path);
967
968 softc->flags |= DA_FLAG_PACK_INVALID;
969
970 /*
971 * Return all queued I/O with ENXIO.
972 * XXX Handle any transactions queued to the card
973 * with XPT_ABORT_CCB.
974 */
975 bioq_flush(&softc->bio_queue, NULL, ENXIO);
976
977 disk_gone(softc->disk);
978 xpt_print(periph->path, "lost device\n");
979 }
980
981 static void
982 dacleanup(struct cam_periph *periph)
983 {
984 struct da_softc *softc;
985
986 softc = (struct da_softc *)periph->softc;
987
988 xpt_print(periph->path, "removing device entry\n");
989 /*
990 * If we can't free the sysctl tree, oh well...
991 */
992 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
993 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
994 xpt_print(periph->path, "can't remove sysctl context\n");
995 }
996
997 cam_periph_unlock(periph);
998 disk_destroy(softc->disk);
999 callout_drain(&softc->sendordered_c);
1000 cam_periph_lock(periph);
1001 free(softc, M_DEVBUF);
1002 }
1003
1004 static void
1005 daasync(void *callback_arg, u_int32_t code,
1006 struct cam_path *path, void *arg)
1007 {
1008 struct cam_periph *periph;
1009
1010 periph = (struct cam_periph *)callback_arg;
1011 switch (code) {
1012 case AC_FOUND_DEVICE:
1013 {
1014 struct ccb_getdev *cgd;
1015 struct cam_sim *sim;
1016 cam_status status;
1017
1018 cgd = (struct ccb_getdev *)arg;
1019 if (cgd == NULL)
1020 break;
1021
1022 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1023 && SID_TYPE(&cgd->inq_data) != T_RBC
1024 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1025 break;
1026
1027 /*
1028 * Allocate a peripheral instance for
1029 * this device and start the probe
1030 * process.
1031 */
1032 sim = xpt_path_sim(cgd->ccb_h.path);
1033 status = cam_periph_alloc(daregister, daoninvalidate,
1034 dacleanup, dastart,
1035 "da", CAM_PERIPH_BIO,
1036 cgd->ccb_h.path, daasync,
1037 AC_FOUND_DEVICE, cgd);
1038
1039 if (status != CAM_REQ_CMP
1040 && status != CAM_REQ_INPROG)
1041 printf("daasync: Unable to attach to new device "
1042 "due to status 0x%x\n", status);
1043 break;
1044 }
1045 case AC_SENT_BDR:
1046 case AC_BUS_RESET:
1047 {
1048 struct da_softc *softc;
1049 struct ccb_hdr *ccbh;
1050
1051 softc = (struct da_softc *)periph->softc;
1052 /*
1053 * Don't fail on the expected unit attention
1054 * that will occur.
1055 */
1056 softc->flags |= DA_FLAG_RETRY_UA;
1057 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1058 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1059 /* FALLTHROUGH*/
1060 }
1061 default:
1062 cam_periph_async(periph, code, path, arg);
1063 break;
1064 }
1065 }
1066
1067 static void
1068 dasysctlinit(void *context, int pending)
1069 {
1070 struct cam_periph *periph;
1071 struct da_softc *softc;
1072 char tmpstr[80], tmpstr2[80];
1073
1074 periph = (struct cam_periph *)context;
1075 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
1076 return;
1077
1078 softc = (struct da_softc *)periph->softc;
1079 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1080 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1081
1082 mtx_lock(&Giant);
1083 sysctl_ctx_init(&softc->sysctl_ctx);
1084 softc->flags |= DA_FLAG_SCTX_INIT;
1085 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1086 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1087 CTLFLAG_RD, 0, tmpstr);
1088 if (softc->sysctl_tree == NULL) {
1089 printf("dasysctlinit: unable to allocate sysctl tree\n");
1090 mtx_unlock(&Giant);
1091 cam_periph_release(periph);
1092 return;
1093 }
1094
1095 /*
1096 * Now register the sysctl handler, so the user can the value on
1097 * the fly.
1098 */
1099 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
1100 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1101 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1102 "Minimum CDB size");
1103
1104 mtx_unlock(&Giant);
1105 cam_periph_release(periph);
1106 }
1107
1108 static int
1109 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1110 {
1111 int error, value;
1112
1113 value = *(int *)arg1;
1114
1115 error = sysctl_handle_int(oidp, &value, 0, req);
1116
1117 if ((error != 0)
1118 || (req->newptr == NULL))
1119 return (error);
1120
1121 /*
1122 * Acceptable values here are 6, 10, 12 or 16.
1123 */
1124 if (value < 6)
1125 value = 6;
1126 else if ((value > 6)
1127 && (value <= 10))
1128 value = 10;
1129 else if ((value > 10)
1130 && (value <= 12))
1131 value = 12;
1132 else if (value > 12)
1133 value = 16;
1134
1135 *(int *)arg1 = value;
1136
1137 return (0);
1138 }
1139
1140 static cam_status
1141 daregister(struct cam_periph *periph, void *arg)
1142 {
1143 struct da_softc *softc;
1144 struct ccb_pathinq cpi;
1145 struct ccb_getdev *cgd;
1146 char tmpstr[80];
1147 caddr_t match;
1148
1149 cgd = (struct ccb_getdev *)arg;
1150 if (periph == NULL) {
1151 printf("daregister: periph was NULL!!\n");
1152 return(CAM_REQ_CMP_ERR);
1153 }
1154
1155 if (cgd == NULL) {
1156 printf("daregister: no getdev CCB, can't register device\n");
1157 return(CAM_REQ_CMP_ERR);
1158 }
1159
1160 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1161 M_NOWAIT|M_ZERO);
1162
1163 if (softc == NULL) {
1164 printf("daregister: Unable to probe new device. "
1165 "Unable to allocate softc\n");
1166 return(CAM_REQ_CMP_ERR);
1167 }
1168
1169 LIST_INIT(&softc->pending_ccbs);
1170 softc->state = DA_STATE_PROBE;
1171 bioq_init(&softc->bio_queue);
1172 if (SID_IS_REMOVABLE(&cgd->inq_data))
1173 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1174 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1175 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1176
1177 periph->softc = softc;
1178
1179 /*
1180 * See if this device has any quirks.
1181 */
1182 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1183 (caddr_t)da_quirk_table,
1184 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1185 sizeof(*da_quirk_table), scsi_inquiry_match);
1186
1187 if (match != NULL)
1188 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1189 else
1190 softc->quirks = DA_Q_NONE;
1191
1192 /* Check if the SIM does not want 6 byte commands */
1193 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
1194 cpi.ccb_h.func_code = XPT_PATH_INQ;
1195 xpt_action((union ccb *)&cpi);
1196 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1197 softc->quirks |= DA_Q_NO_6_BYTE;
1198
1199 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1200
1201 /*
1202 * RBC devices don't have to support READ(6), only READ(10).
1203 */
1204 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1205 softc->minimum_cmd_size = 10;
1206 else
1207 softc->minimum_cmd_size = 6;
1208
1209 /*
1210 * Load the user's default, if any.
1211 */
1212 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1213 periph->unit_number);
1214 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1215
1216 /*
1217 * 6, 10, 12 and 16 are the currently permissible values.
1218 */
1219 if (softc->minimum_cmd_size < 6)
1220 softc->minimum_cmd_size = 6;
1221 else if ((softc->minimum_cmd_size > 6)
1222 && (softc->minimum_cmd_size <= 10))
1223 softc->minimum_cmd_size = 10;
1224 else if ((softc->minimum_cmd_size > 10)
1225 && (softc->minimum_cmd_size <= 12))
1226 softc->minimum_cmd_size = 12;
1227 else if (softc->minimum_cmd_size > 12)
1228 softc->minimum_cmd_size = 16;
1229
1230 /*
1231 * Register this media as a disk
1232 */
1233
1234 mtx_unlock(periph->sim->mtx);
1235 softc->disk = disk_alloc();
1236 softc->disk->d_open = daopen;
1237 softc->disk->d_close = daclose;
1238 softc->disk->d_strategy = dastrategy;
1239 softc->disk->d_dump = dadump;
1240 softc->disk->d_name = "da";
1241 softc->disk->d_drv1 = periph;
1242 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */
1243 softc->disk->d_unit = periph->unit_number;
1244 softc->disk->d_flags = 0;
1245 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1246 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1247 disk_create(softc->disk, DISK_VERSION);
1248 mtx_lock(periph->sim->mtx);
1249
1250 /*
1251 * Add async callbacks for bus reset and
1252 * bus device reset calls. I don't bother
1253 * checking if this fails as, in most cases,
1254 * the system will function just fine without
1255 * them and the only alternative would be to
1256 * not attach the device on failure.
1257 */
1258 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE,
1259 daasync, periph, periph->path);
1260
1261 /*
1262 * Take an exclusive refcount on the periph while dastart is called
1263 * to finish the probe. The reference will be dropped in dadone at
1264 * the end of probe.
1265 */
1266 (void)cam_periph_hold(periph, PRIBIO);
1267 xpt_schedule(periph, /*priority*/5);
1268
1269 /*
1270 * Schedule a periodic event to occasionally send an
1271 * ordered tag to a device.
1272 */
1273 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1274 callout_reset(&softc->sendordered_c,
1275 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
1276 dasendorderedtag, softc);
1277
1278 return(CAM_REQ_CMP);
1279 }
1280
1281 static void
1282 dastart(struct cam_periph *periph, union ccb *start_ccb)
1283 {
1284 struct da_softc *softc;
1285
1286 softc = (struct da_softc *)periph->softc;
1287
1288 switch (softc->state) {
1289 case DA_STATE_NORMAL:
1290 {
1291 /* Pull a buffer from the queue and get going on it */
1292 struct bio *bp;
1293
1294 /*
1295 * See if there is a buf with work for us to do..
1296 */
1297 bp = bioq_first(&softc->bio_queue);
1298 if (periph->immediate_priority <= periph->pinfo.priority) {
1299 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1300 ("queuing for immediate ccb\n"));
1301 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1302 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1303 periph_links.sle);
1304 periph->immediate_priority = CAM_PRIORITY_NONE;
1305 wakeup(&periph->ccb_list);
1306 } else if (bp == NULL) {
1307 xpt_release_ccb(start_ccb);
1308 } else {
1309 u_int8_t tag_code;
1310
1311 bioq_remove(&softc->bio_queue, bp);
1312
1313 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1314 softc->flags &= ~DA_FLAG_NEED_OTAG;
1315 softc->ordered_tag_count++;
1316 tag_code = MSG_ORDERED_Q_TAG;
1317 } else {
1318 tag_code = MSG_SIMPLE_Q_TAG;
1319 }
1320 switch (bp->bio_cmd) {
1321 case BIO_READ:
1322 case BIO_WRITE:
1323 scsi_read_write(&start_ccb->csio,
1324 /*retries*/da_retry_count,
1325 /*cbfcnp*/dadone,
1326 /*tag_action*/tag_code,
1327 /*read_op*/bp->bio_cmd == BIO_READ,
1328 /*byte2*/0,
1329 softc->minimum_cmd_size,
1330 /*lba*/bp->bio_pblkno,
1331 /*block_count*/bp->bio_bcount /
1332 softc->params.secsize,
1333 /*data_ptr*/ bp->bio_data,
1334 /*dxfer_len*/ bp->bio_bcount,
1335 /*sense_len*/SSD_FULL_SIZE,
1336 /*timeout*/da_default_timeout*1000);
1337 break;
1338 case BIO_FLUSH:
1339 scsi_synchronize_cache(&start_ccb->csio,
1340 /*retries*/1,
1341 /*cbfcnp*/dadone,
1342 MSG_SIMPLE_Q_TAG,
1343 /*begin_lba*/0,/* Cover the whole disk */
1344 /*lb_count*/0,
1345 SSD_FULL_SIZE,
1346 /*timeout*/da_default_timeout*1000);
1347 break;
1348 }
1349 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1350
1351 /*
1352 * Block out any asyncronous callbacks
1353 * while we touch the pending ccb list.
1354 */
1355 LIST_INSERT_HEAD(&softc->pending_ccbs,
1356 &start_ccb->ccb_h, periph_links.le);
1357 softc->outstanding_cmds++;
1358
1359 /* We expect a unit attention from this device */
1360 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1361 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1362 softc->flags &= ~DA_FLAG_RETRY_UA;
1363 }
1364
1365 start_ccb->ccb_h.ccb_bp = bp;
1366 bp = bioq_first(&softc->bio_queue);
1367
1368 xpt_action(start_ccb);
1369 }
1370
1371 if (bp != NULL) {
1372 /* Have more work to do, so ensure we stay scheduled */
1373 xpt_schedule(periph, /* XXX priority */1);
1374 }
1375 break;
1376 }
1377 case DA_STATE_PROBE:
1378 {
1379 struct ccb_scsiio *csio;
1380 struct scsi_read_capacity_data *rcap;
1381
1382 rcap = (struct scsi_read_capacity_data *)
1383 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1384 if (rcap == NULL) {
1385 printf("dastart: Couldn't malloc read_capacity data\n");
1386 /* da_free_periph??? */
1387 break;
1388 }
1389 csio = &start_ccb->csio;
1390 scsi_read_capacity(csio,
1391 /*retries*/4,
1392 dadone,
1393 MSG_SIMPLE_Q_TAG,
1394 rcap,
1395 SSD_FULL_SIZE,
1396 /*timeout*/5000);
1397 start_ccb->ccb_h.ccb_bp = NULL;
1398 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1399 xpt_action(start_ccb);
1400 break;
1401 }
1402 case DA_STATE_PROBE2:
1403 {
1404 struct ccb_scsiio *csio;
1405 struct scsi_read_capacity_data_long *rcaplong;
1406
1407 rcaplong = (struct scsi_read_capacity_data_long *)
1408 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1409 if (rcaplong == NULL) {
1410 printf("dastart: Couldn't malloc read_capacity data\n");
1411 /* da_free_periph??? */
1412 break;
1413 }
1414 csio = &start_ccb->csio;
1415 scsi_read_capacity_16(csio,
1416 /*retries*/ 4,
1417 /*cbfcnp*/ dadone,
1418 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1419 /*lba*/ 0,
1420 /*reladr*/ 0,
1421 /*pmi*/ 0,
1422 rcaplong,
1423 /*sense_len*/ SSD_FULL_SIZE,
1424 /*timeout*/ 60000);
1425 start_ccb->ccb_h.ccb_bp = NULL;
1426 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1427 xpt_action(start_ccb);
1428 break;
1429 }
1430 }
1431 }
1432
1433 static int
1434 cmd6workaround(union ccb *ccb)
1435 {
1436 struct scsi_rw_6 cmd6;
1437 struct scsi_rw_10 *cmd10;
1438 struct da_softc *softc;
1439 u_int8_t *cdb;
1440 int frozen;
1441
1442 cdb = ccb->csio.cdb_io.cdb_bytes;
1443
1444 /* Translation only possible if CDB is an array and cmd is R/W6 */
1445 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1446 (*cdb != READ_6 && *cdb != WRITE_6))
1447 return 0;
1448
1449 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1450 "increasing minimum_cmd_size to 10.\n");
1451 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1452 softc->minimum_cmd_size = 10;
1453
1454 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1455 cmd10 = (struct scsi_rw_10 *)cdb;
1456 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1457 cmd10->byte2 = 0;
1458 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1459 cmd10->reserved = 0;
1460 scsi_ulto2b(cmd6.length, cmd10->length);
1461 cmd10->control = cmd6.control;
1462 ccb->csio.cdb_len = sizeof(*cmd10);
1463
1464 /* Requeue request, unfreezing queue if necessary */
1465 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1466 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1467 xpt_action(ccb);
1468 if (frozen) {
1469 cam_release_devq(ccb->ccb_h.path,
1470 /*relsim_flags*/0,
1471 /*reduction*/0,
1472 /*timeout*/0,
1473 /*getcount_only*/0);
1474 }
1475 return (ERESTART);
1476 }
1477
1478 static void
1479 dadone(struct cam_periph *periph, union ccb *done_ccb)
1480 {
1481 struct da_softc *softc;
1482 struct ccb_scsiio *csio;
1483
1484 softc = (struct da_softc *)periph->softc;
1485 csio = &done_ccb->csio;
1486 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1487 case DA_CCB_BUFFER_IO:
1488 {
1489 struct bio *bp;
1490
1491 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1492 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1493 int error;
1494 int sf;
1495
1496 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1497 sf = SF_RETRY_UA;
1498 else
1499 sf = 0;
1500
1501 error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1502 if (error == ERESTART) {
1503 /*
1504 * A retry was scheuled, so
1505 * just return.
1506 */
1507 return;
1508 }
1509 if (error != 0) {
1510
1511 if (error == ENXIO) {
1512 /*
1513 * Catastrophic error. Mark our pack as
1514 * invalid.
1515 */
1516 /*
1517 * XXX See if this is really a media
1518 * XXX change first?
1519 */
1520 xpt_print(periph->path,
1521 "Invalidating pack\n");
1522 softc->flags |= DA_FLAG_PACK_INVALID;
1523 }
1524
1525 /*
1526 * return all queued I/O with EIO, so that
1527 * the client can retry these I/Os in the
1528 * proper order should it attempt to recover.
1529 */
1530 bioq_flush(&softc->bio_queue, NULL, EIO);
1531 bp->bio_error = error;
1532 bp->bio_resid = bp->bio_bcount;
1533 bp->bio_flags |= BIO_ERROR;
1534 } else {
1535 bp->bio_resid = csio->resid;
1536 bp->bio_error = 0;
1537 if (bp->bio_resid != 0)
1538 bp->bio_flags |= BIO_ERROR;
1539 }
1540 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1541 cam_release_devq(done_ccb->ccb_h.path,
1542 /*relsim_flags*/0,
1543 /*reduction*/0,
1544 /*timeout*/0,
1545 /*getcount_only*/0);
1546 } else {
1547 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1548 panic("REQ_CMP with QFRZN");
1549 bp->bio_resid = csio->resid;
1550 if (csio->resid > 0)
1551 bp->bio_flags |= BIO_ERROR;
1552 }
1553
1554 /*
1555 * Block out any asyncronous callbacks
1556 * while we touch the pending ccb list.
1557 */
1558 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1559 softc->outstanding_cmds--;
1560 if (softc->outstanding_cmds == 0)
1561 softc->flags |= DA_FLAG_WENT_IDLE;
1562
1563 biodone(bp);
1564 break;
1565 }
1566 case DA_CCB_PROBE:
1567 case DA_CCB_PROBE2:
1568 {
1569 struct scsi_read_capacity_data *rdcap;
1570 struct scsi_read_capacity_data_long *rcaplong;
1571 char announce_buf[80];
1572
1573 rdcap = NULL;
1574 rcaplong = NULL;
1575 if (softc->state == DA_STATE_PROBE)
1576 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1577 else
1578 rcaplong = (struct scsi_read_capacity_data_long *)
1579 csio->data_ptr;
1580
1581 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1582 struct disk_params *dp;
1583 uint32_t block_size;
1584 uint64_t maxsector;
1585
1586 if (softc->state == DA_STATE_PROBE) {
1587 block_size = scsi_4btoul(rdcap->length);
1588 maxsector = scsi_4btoul(rdcap->addr);
1589
1590 /*
1591 * According to SBC-2, if the standard 10
1592 * byte READ CAPACITY command returns 2^32,
1593 * we should issue the 16 byte version of
1594 * the command, since the device in question
1595 * has more sectors than can be represented
1596 * with the short version of the command.
1597 */
1598 if (maxsector == 0xffffffff) {
1599 softc->state = DA_STATE_PROBE2;
1600 free(rdcap, M_SCSIDA);
1601 xpt_release_ccb(done_ccb);
1602 xpt_schedule(periph, /*priority*/5);
1603 return;
1604 }
1605 } else {
1606 block_size = scsi_4btoul(rcaplong->length);
1607 maxsector = scsi_8btou64(rcaplong->addr);
1608 }
1609
1610 /*
1611 * Because GEOM code just will panic us if we
1612 * give them an 'illegal' value we'll avoid that
1613 * here.
1614 */
1615 if (block_size >= MAXPHYS || block_size == 0) {
1616 xpt_print(periph->path,
1617 "unsupportable block size %ju\n",
1618 (uintmax_t) block_size);
1619 announce_buf[0] = '\0';
1620 cam_periph_invalidate(periph);
1621 } else {
1622 dasetgeom(periph, block_size, maxsector);
1623 dp = &softc->params;
1624 snprintf(announce_buf, sizeof(announce_buf),
1625 "%juMB (%ju %u byte sectors: %dH %dS/T "
1626 "%dC)", (uintmax_t)
1627 (((uintmax_t)dp->secsize *
1628 dp->sectors) / (1024*1024)),
1629 (uintmax_t)dp->sectors,
1630 dp->secsize, dp->heads,
1631 dp->secs_per_track, dp->cylinders);
1632 }
1633 } else {
1634 int error;
1635
1636 announce_buf[0] = '\0';
1637
1638 /*
1639 * Retry any UNIT ATTENTION type errors. They
1640 * are expected at boot.
1641 */
1642 error = daerror(done_ccb, CAM_RETRY_SELTO,
1643 SF_RETRY_UA|SF_NO_PRINT);
1644 if (error == ERESTART) {
1645 /*
1646 * A retry was scheuled, so
1647 * just return.
1648 */
1649 return;
1650 } else if (error != 0) {
1651 struct scsi_sense_data *sense;
1652 int asc, ascq;
1653 int sense_key, error_code;
1654 int have_sense;
1655 cam_status status;
1656 struct ccb_getdev cgd;
1657
1658 /* Don't wedge this device's queue */
1659 status = done_ccb->ccb_h.status;
1660 if ((status & CAM_DEV_QFRZN) != 0)
1661 cam_release_devq(done_ccb->ccb_h.path,
1662 /*relsim_flags*/0,
1663 /*reduction*/0,
1664 /*timeout*/0,
1665 /*getcount_only*/0);
1666
1667
1668 xpt_setup_ccb(&cgd.ccb_h,
1669 done_ccb->ccb_h.path,
1670 /* priority */ 1);
1671 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1672 xpt_action((union ccb *)&cgd);
1673
1674 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1675 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1676 || ((status & CAM_AUTOSNS_VALID) == 0))
1677 have_sense = FALSE;
1678 else
1679 have_sense = TRUE;
1680
1681 if (have_sense) {
1682 sense = &csio->sense_data;
1683 scsi_extract_sense(sense, &error_code,
1684 &sense_key,
1685 &asc, &ascq);
1686 }
1687 /*
1688 * Attach to anything that claims to be a
1689 * direct access or optical disk device,
1690 * as long as it doesn't return a "Logical
1691 * unit not supported" (0x25) error.
1692 */
1693 if ((have_sense) && (asc != 0x25)
1694 && (error_code == SSD_CURRENT_ERROR)) {
1695 const char *sense_key_desc;
1696 const char *asc_desc;
1697
1698 scsi_sense_desc(sense_key, asc, ascq,
1699 &cgd.inq_data,
1700 &sense_key_desc,
1701 &asc_desc);
1702 snprintf(announce_buf,
1703 sizeof(announce_buf),
1704 "Attempt to query device "
1705 "size failed: %s, %s",
1706 sense_key_desc,
1707 asc_desc);
1708 } else {
1709 if (have_sense)
1710 scsi_sense_print(
1711 &done_ccb->csio);
1712 else {
1713 xpt_print(periph->path,
1714 "got CAM status %#x\n",
1715 done_ccb->ccb_h.status);
1716 }
1717
1718 xpt_print(periph->path, "fatal error, "
1719 "failed to attach to device\n");
1720
1721 /*
1722 * Free up resources.
1723 */
1724 cam_periph_invalidate(periph);
1725 }
1726 }
1727 }
1728 free(csio->data_ptr, M_SCSIDA);
1729 if (announce_buf[0] != '\0') {
1730 xpt_announce_periph(periph, announce_buf);
1731 /*
1732 * Create our sysctl variables, now that we know
1733 * we have successfully attached.
1734 */
1735 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1736 }
1737 softc->state = DA_STATE_NORMAL;
1738 /*
1739 * Since our peripheral may be invalidated by an error
1740 * above or an external event, we must release our CCB
1741 * before releasing the probe lock on the peripheral.
1742 * The peripheral will only go away once the last lock
1743 * is removed, and we need it around for the CCB release
1744 * operation.
1745 */
1746 xpt_release_ccb(done_ccb);
1747 cam_periph_unhold(periph);
1748 return;
1749 }
1750 case DA_CCB_WAITING:
1751 {
1752 /* Caller will release the CCB */
1753 wakeup(&done_ccb->ccb_h.cbfcnp);
1754 return;
1755 }
1756 case DA_CCB_DUMP:
1757 /* No-op. We're polling */
1758 return;
1759 default:
1760 break;
1761 }
1762 xpt_release_ccb(done_ccb);
1763 }
1764
1765 static int
1766 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1767 {
1768 struct da_softc *softc;
1769 struct cam_periph *periph;
1770 int error;
1771
1772 periph = xpt_path_periph(ccb->ccb_h.path);
1773 softc = (struct da_softc *)periph->softc;
1774
1775 /*
1776 * Automatically detect devices that do not support
1777 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1778 */
1779 error = 0;
1780 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1781 error = cmd6workaround(ccb);
1782 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1783 CAM_SCSI_STATUS_ERROR)
1784 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1785 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1786 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1787 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1788 int sense_key, error_code, asc, ascq;
1789
1790 scsi_extract_sense(&ccb->csio.sense_data,
1791 &error_code, &sense_key, &asc, &ascq);
1792 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1793 error = cmd6workaround(ccb);
1794 }
1795 if (error == ERESTART)
1796 return (ERESTART);
1797
1798 /*
1799 * XXX
1800 * Until we have a better way of doing pack validation,
1801 * don't treat UAs as errors.
1802 */
1803 sense_flags |= SF_RETRY_UA;
1804 return(cam_periph_error(ccb, cam_flags, sense_flags,
1805 &softc->saved_ccb));
1806 }
1807
1808 static void
1809 daprevent(struct cam_periph *periph, int action)
1810 {
1811 struct da_softc *softc;
1812 union ccb *ccb;
1813 int error;
1814
1815 softc = (struct da_softc *)periph->softc;
1816
1817 if (((action == PR_ALLOW)
1818 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1819 || ((action == PR_PREVENT)
1820 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1821 return;
1822 }
1823
1824 ccb = cam_periph_getccb(periph, /*priority*/1);
1825
1826 scsi_prevent(&ccb->csio,
1827 /*retries*/1,
1828 /*cbcfp*/dadone,
1829 MSG_SIMPLE_Q_TAG,
1830 action,
1831 SSD_FULL_SIZE,
1832 5000);
1833
1834 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
1835 SF_RETRY_UA, softc->disk->d_devstat);
1836
1837 if (error == 0) {
1838 if (action == PR_ALLOW)
1839 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1840 else
1841 softc->flags |= DA_FLAG_PACK_LOCKED;
1842 }
1843
1844 xpt_release_ccb(ccb);
1845 }
1846
1847 static int
1848 dagetcapacity(struct cam_periph *periph)
1849 {
1850 struct da_softc *softc;
1851 union ccb *ccb;
1852 struct scsi_read_capacity_data *rcap;
1853 struct scsi_read_capacity_data_long *rcaplong;
1854 uint32_t block_len;
1855 uint64_t maxsector;
1856 int error;
1857 u_int32_t sense_flags;
1858
1859 softc = (struct da_softc *)periph->softc;
1860 block_len = 0;
1861 maxsector = 0;
1862 error = 0;
1863 sense_flags = SF_RETRY_UA;
1864 if (softc->flags & DA_FLAG_PACK_REMOVABLE)
1865 sense_flags |= SF_NO_PRINT;
1866
1867 /* Do a read capacity */
1868 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
1869 M_SCSIDA,
1870 M_NOWAIT);
1871 if (rcap == NULL)
1872 return (ENOMEM);
1873
1874 ccb = cam_periph_getccb(periph, /*priority*/1);
1875 scsi_read_capacity(&ccb->csio,
1876 /*retries*/4,
1877 /*cbfncp*/dadone,
1878 MSG_SIMPLE_Q_TAG,
1879 rcap,
1880 SSD_FULL_SIZE,
1881 /*timeout*/60000);
1882 ccb->ccb_h.ccb_bp = NULL;
1883
1884 error = cam_periph_runccb(ccb, daerror,
1885 /*cam_flags*/CAM_RETRY_SELTO,
1886 sense_flags,
1887 softc->disk->d_devstat);
1888
1889 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1890 cam_release_devq(ccb->ccb_h.path,
1891 /*relsim_flags*/0,
1892 /*reduction*/0,
1893 /*timeout*/0,
1894 /*getcount_only*/0);
1895
1896 if (error == 0) {
1897 block_len = scsi_4btoul(rcap->length);
1898 maxsector = scsi_4btoul(rcap->addr);
1899
1900 if (maxsector != 0xffffffff)
1901 goto done;
1902 } else
1903 goto done;
1904
1905 rcaplong = (struct scsi_read_capacity_data_long *)rcap;
1906
1907 scsi_read_capacity_16(&ccb->csio,
1908 /*retries*/ 4,
1909 /*cbfcnp*/ dadone,
1910 /*tag_action*/ MSG_SIMPLE_Q_TAG,
1911 /*lba*/ 0,
1912 /*reladr*/ 0,
1913 /*pmi*/ 0,
1914 rcaplong,
1915 /*sense_len*/ SSD_FULL_SIZE,
1916 /*timeout*/ 60000);
1917 ccb->ccb_h.ccb_bp = NULL;
1918
1919 error = cam_periph_runccb(ccb, daerror,
1920 /*cam_flags*/CAM_RETRY_SELTO,
1921 sense_flags,
1922 softc->disk->d_devstat);
1923
1924 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1925 cam_release_devq(ccb->ccb_h.path,
1926 /*relsim_flags*/0,
1927 /*reduction*/0,
1928 /*timeout*/0,
1929 /*getcount_only*/0);
1930
1931 if (error == 0) {
1932 block_len = scsi_4btoul(rcaplong->length);
1933 maxsector = scsi_8btou64(rcaplong->addr);
1934 }
1935
1936 done:
1937
1938 if (error == 0)
1939 dasetgeom(periph, block_len, maxsector);
1940
1941 xpt_release_ccb(ccb);
1942
1943 free(rcap, M_SCSIDA);
1944
1945 return (error);
1946 }
1947
1948 static void
1949 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
1950 {
1951 struct ccb_calc_geometry ccg;
1952 struct da_softc *softc;
1953 struct disk_params *dp;
1954
1955 softc = (struct da_softc *)periph->softc;
1956
1957 dp = &softc->params;
1958 dp->secsize = block_len;
1959 dp->sectors = maxsector + 1;
1960 /*
1961 * Have the controller provide us with a geometry
1962 * for this disk. The only time the geometry
1963 * matters is when we boot and the controller
1964 * is the only one knowledgeable enough to come
1965 * up with something that will make this a bootable
1966 * device.
1967 */
1968 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1969 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1970 ccg.block_size = dp->secsize;
1971 ccg.volume_size = dp->sectors;
1972 ccg.heads = 0;
1973 ccg.secs_per_track = 0;
1974 ccg.cylinders = 0;
1975 xpt_action((union ccb*)&ccg);
1976 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1977 /*
1978 * We don't know what went wrong here- but just pick
1979 * a geometry so we don't have nasty things like divide
1980 * by zero.
1981 */
1982 dp->heads = 255;
1983 dp->secs_per_track = 255;
1984 dp->cylinders = dp->sectors / (255 * 255);
1985 if (dp->cylinders == 0) {
1986 dp->cylinders = 1;
1987 }
1988 } else {
1989 dp->heads = ccg.heads;
1990 dp->secs_per_track = ccg.secs_per_track;
1991 dp->cylinders = ccg.cylinders;
1992 }
1993 }
1994
1995 static void
1996 dasendorderedtag(void *arg)
1997 {
1998 struct da_softc *softc = arg;
1999
2000 if (da_send_ordered) {
2001 if ((softc->ordered_tag_count == 0)
2002 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2003 softc->flags |= DA_FLAG_NEED_OTAG;
2004 }
2005 if (softc->outstanding_cmds > 0)
2006 softc->flags &= ~DA_FLAG_WENT_IDLE;
2007
2008 softc->ordered_tag_count = 0;
2009 }
2010 /* Queue us up again */
2011 callout_reset(&softc->sendordered_c,
2012 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
2013 dasendorderedtag, softc);
2014 }
2015
2016 /*
2017 * Step through all DA peripheral drivers, and if the device is still open,
2018 * sync the disk cache to physical media.
2019 */
2020 static void
2021 dashutdown(void * arg, int howto)
2022 {
2023 struct cam_periph *periph;
2024 struct da_softc *softc;
2025
2026 TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2027 union ccb ccb;
2028
2029 cam_periph_lock(periph);
2030 softc = (struct da_softc *)periph->softc;
2031
2032 /*
2033 * We only sync the cache if the drive is still open, and
2034 * if the drive is capable of it..
2035 */
2036 if (((softc->flags & DA_FLAG_OPEN) == 0)
2037 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2038 cam_periph_unlock(periph);
2039 continue;
2040 }
2041
2042 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
2043
2044 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2045 scsi_synchronize_cache(&ccb.csio,
2046 /*retries*/1,
2047 /*cbfcnp*/dadone,
2048 MSG_SIMPLE_Q_TAG,
2049 /*begin_lba*/0, /* whole disk */
2050 /*lb_count*/0,
2051 SSD_FULL_SIZE,
2052 60 * 60 * 1000);
2053
2054 xpt_polled_action(&ccb);
2055
2056 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2057 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2058 CAM_SCSI_STATUS_ERROR)
2059 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2060 int error_code, sense_key, asc, ascq;
2061
2062 scsi_extract_sense(&ccb.csio.sense_data,
2063 &error_code, &sense_key,
2064 &asc, &ascq);
2065
2066 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2067 scsi_sense_print(&ccb.csio);
2068 } else {
2069 xpt_print(periph->path, "Synchronize "
2070 "cache failed, status == 0x%x, scsi status "
2071 "== 0x%x\n", ccb.ccb_h.status,
2072 ccb.csio.scsi_status);
2073 }
2074 }
2075
2076 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2077 cam_release_devq(ccb.ccb_h.path,
2078 /*relsim_flags*/0,
2079 /*reduction*/0,
2080 /*timeout*/0,
2081 /*getcount_only*/0);
2082 cam_periph_unlock(periph);
2083 }
2084 }
2085
2086 #else /* !_KERNEL */
2087
2088 /*
2089 * XXX This is only left out of the kernel build to silence warnings. If,
2090 * for some reason this function is used in the kernel, the ifdefs should
2091 * be moved so it is included both in the kernel and userland.
2092 */
2093 void
2094 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2095 void (*cbfcnp)(struct cam_periph *, union ccb *),
2096 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2097 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2098 u_int32_t timeout)
2099 {
2100 struct scsi_format_unit *scsi_cmd;
2101
2102 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2103 scsi_cmd->opcode = FORMAT_UNIT;
2104 scsi_cmd->byte2 = byte2;
2105 scsi_ulto2b(ileave, scsi_cmd->interleave);
2106
2107 cam_fill_csio(csio,
2108 retries,
2109 cbfcnp,
2110 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2111 tag_action,
2112 data_ptr,
2113 dxfer_len,
2114 sense_len,
2115 sizeof(*scsi_cmd),
2116 timeout);
2117 }
2118
2119 #endif /* _KERNEL */
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