Most motherboards these days have at least two USB controllers. Adjust
[dragonfly.git] / sys / bus / cam / scsi / scsi_da.c
CommitLineData
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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 * $FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.42.2.36 2003/05/17 21:48:30 njl Exp $
af2c53dc 29 * $DragonFly: src/sys/bus/cam/scsi/scsi_da.c,v 1.11 2003/11/29 15:23:33 drhodus Exp $
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30 */
31
32#ifdef _KERNEL
33#include "opt_hw_wdog.h"
34#endif /* _KERNEL */
35
36#include <sys/param.h>
fabb8ceb 37#include <sys/bootmaj.h>
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38
39#ifdef _KERNEL
40#include <sys/systm.h>
41#include <sys/kernel.h>
42#include <sys/buf.h>
43#include <sys/sysctl.h>
44#endif /* _KERNEL */
45
46#include <sys/devicestat.h>
47#include <sys/conf.h>
48#include <sys/disk.h>
49#include <sys/eventhandler.h>
05220613 50#ifdef _KERNEL
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51#include <sys/malloc.h>
52#include <sys/cons.h>
3020e3be 53#include <sys/proc.h>
05220613 54#endif
3020e3be 55#include <sys/buf2.h>
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56
57#include <machine/md_var.h>
58
05220613 59#ifdef _KERNEL
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60#include <vm/vm.h>
61#include <vm/pmap.h>
05220613 62#endif
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63
64#ifndef _KERNEL
65#include <stdio.h>
66#include <string.h>
67#endif /* _KERNEL */
68
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69#include "../cam.h"
70#include "../cam_ccb.h"
71#include "../cam_extend.h"
72#include "../cam_periph.h"
73#include "../cam_xpt_periph.h"
984263bc 74
1f2de5d4 75#include "scsi_message.h"
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76
77#ifndef _KERNEL
1f2de5d4 78#include "scsi_da.h"
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79#endif /* !_KERNEL */
80
81#ifdef _KERNEL
82typedef enum {
83 DA_STATE_PROBE,
84 DA_STATE_NORMAL
85} da_state;
86
87typedef enum {
88 DA_FLAG_PACK_INVALID = 0x001,
89 DA_FLAG_NEW_PACK = 0x002,
90 DA_FLAG_PACK_LOCKED = 0x004,
91 DA_FLAG_PACK_REMOVABLE = 0x008,
92 DA_FLAG_TAGGED_QUEUING = 0x010,
93 DA_FLAG_NEED_OTAG = 0x020,
94 DA_FLAG_WENT_IDLE = 0x040,
95 DA_FLAG_RETRY_UA = 0x080,
96 DA_FLAG_OPEN = 0x100
97} da_flags;
98
99typedef enum {
100 DA_Q_NONE = 0x00,
101 DA_Q_NO_SYNC_CACHE = 0x01,
102 DA_Q_NO_6_BYTE = 0x02
103} da_quirks;
104
105typedef enum {
106 DA_CCB_PROBE = 0x01,
107 DA_CCB_BUFFER_IO = 0x02,
108 DA_CCB_WAITING = 0x03,
109 DA_CCB_DUMP = 0x04,
110 DA_CCB_TYPE_MASK = 0x0F,
111 DA_CCB_RETRY_UA = 0x10
112} da_ccb_state;
113
114/* Offsets into our private area for storing information */
115#define ccb_state ppriv_field0
116#define ccb_bp ppriv_ptr1
117
118struct disk_params {
119 u_int8_t heads;
120 u_int16_t cylinders;
121 u_int8_t secs_per_track;
122 u_int32_t secsize; /* Number of bytes/sector */
123 u_int32_t sectors; /* total number sectors */
124};
125
126struct da_softc {
127 struct buf_queue_head buf_queue;
128 struct devstat device_stats;
129 SLIST_ENTRY(da_softc) links;
130 LIST_HEAD(, ccb_hdr) pending_ccbs;
131 da_state state;
132 da_flags flags;
133 da_quirks quirks;
134 int minimum_cmd_size;
135 int ordered_tag_count;
136 struct disk_params params;
137 struct disk disk;
138 union ccb saved_ccb;
139};
140
141struct da_quirk_entry {
142 struct scsi_inquiry_pattern inq_pat;
143 da_quirks quirks;
144};
145
146static const char quantum[] = "QUANTUM";
147static const char microp[] = "MICROP";
148
149static struct da_quirk_entry da_quirk_table[] =
150{
151 {
152 /*
153 * Fujitsu M2513A MO drives.
154 * Tested devices: M2513A2 firmware versions 1200 & 1300.
155 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
156 * Reported by: W.Scholten <whs@xs4all.nl>
157 */
158 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
159 /*quirks*/ DA_Q_NO_SYNC_CACHE
160 },
161 {
162 /* See above. */
163 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
164 /*quirks*/ DA_Q_NO_SYNC_CACHE
165 },
166 {
167 /*
168 * This particular Fujitsu drive doesn't like the
169 * synchronize cache command.
170 * Reported by: Tom Jackson <toj@gorilla.net>
171 */
172 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
173 /*quirks*/ DA_Q_NO_SYNC_CACHE
174
175 },
176 {
177 /*
178 * This drive doesn't like the synchronize cache command
179 * either. Reported by: Matthew Jacob <mjacob@feral.com>
180 * in NetBSD PR kern/6027, August 24, 1998.
181 */
182 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
183 /*quirks*/ DA_Q_NO_SYNC_CACHE
184 },
185 {
186 /*
187 * This drive doesn't like the synchronize cache command
188 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
189 * (PR 8882).
190 */
191 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
192 /*quirks*/ DA_Q_NO_SYNC_CACHE
193 },
194 {
195 /*
196 * Doesn't like the synchronize cache command.
197 * Reported by: Blaz Zupan <blaz@gold.amis.net>
198 */
199 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
200 /*quirks*/ DA_Q_NO_SYNC_CACHE
201 },
202 {
203 /*
204 * Doesn't like the synchronize cache command.
205 */
206 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
207 /*quirks*/ DA_Q_NO_SYNC_CACHE
208 },
209 {
210 /*
211 * Doesn't like the synchronize cache command.
212 */
213 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
214 /*quirks*/ DA_Q_NO_SYNC_CACHE
215 },
216 {
217 /*
218 * Doesn't work correctly with 6 byte reads/writes.
219 * Returns illegal request, and points to byte 9 of the
220 * 6-byte CDB.
221 * Reported by: Adam McDougall <bsdx@spawnet.com>
222 */
223 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
224 /*quirks*/ DA_Q_NO_6_BYTE
225 },
226 {
227 /*
228 * See above.
229 */
230 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
231 /*quirks*/ DA_Q_NO_6_BYTE
232 },
233
234 /* Below a list of quirks for USB devices supported by umass. */
235 {
236 /*
237 * This USB floppy drive uses the UFI command set. This
238 * command set is a derivative of the ATAPI command set and
239 * does not support READ_6 commands only READ_10. It also does
240 * not support sync cache (0x35).
241 */
242 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"},
243 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
244 },
245 {
246 /* Another USB floppy */
247 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"},
248 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
249 },
250 {
251 /*
252 * Sony Memory Stick adapter MSAC-US1 and
253 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01).
254 * Make all sony MS* products use this quirk.
255 */
256 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"},
257 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
258 },
259 {
260 /*
261 * Sony Memory Stick adapter for the CLIE series
262 * of PalmOS PDA's
263 */
264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"},
265 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
266 },
267 {
268 /*
269 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70)
270 */
271 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
272 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
273 },
274 {
275 /*
276 * Maxtor 3000LE USB Drive
277 */
278 {T_DIRECT, SIP_MEDIA_FIXED, "MAXTOR*", "K040H2*", "*"},
279 /*quirks*/ DA_Q_NO_6_BYTE
280 },
281 {
282 /*
283 * LaCie USB drive, among others
284 */
285 {T_DIRECT, SIP_MEDIA_FIXED, "Maxtor*", "D080H4*", "*"},
286 /*quirks*/ DA_Q_NO_6_BYTE
287 },
288 {
289 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "MCF3064AP", "*"},
290 /*quirks*/ DA_Q_NO_6_BYTE
291 },
292 {
293 /*
294 * Microtech USB CameraMate
295 */
296 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*",
297 "Compact Flash*", "*"},
298 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
299 },
300 {
301 /*
302 * The vendor, product and version strings coming from the
303 * controller are null terminated instead of being padded with
304 * spaces. The trailing wildcard character '*' is required.
305 */
306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"},
307 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
308 },
309 {
310 /*
311 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1)
312 */
313 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"},
314 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
315 },
316 {
317 /*
318 * Olympus digital cameras (D-370)
319 */
320 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "D-*", "*"},
321 /*quirks*/ DA_Q_NO_6_BYTE
322 },
323 {
324 /*
325 * Olympus digital cameras (E-100RS, E-10).
326 */
327 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"},
328 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
329 },
330 {
331 /*
332 * KingByte Pen Drives
333 */
334 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"},
335 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
336 },
337 {
338 /*
339 * FujiFilm Camera
340 */
341 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT",
342 "USB-DRIVEUNIT", "*"},
343 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
344 },
345 {
346 /*
347 * Nikon Coolpix E775/E995 Cameras
348 */
349 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NIKON", "NIKON DSC E*", "*"},
350 /*quirks*/ DA_Q_NO_6_BYTE
351 },
352 {
353 /*
354 * Nikon Coolpix E885 Camera
355 */
356 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Nikon", "Digital Camera", "*"},
357 /*quirks*/ DA_Q_NO_6_BYTE
358 },
359 {
360 /*
361 * SimpleTech FlashLink UCF-100
362 */
363 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OEI-USB", "CompactFlash", "*"},
364 /*quirks*/ DA_Q_NO_6_BYTE
365 },
366 {
367 /*
368 * Minolta Dimage 2330
369 */
370 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DIMAGE 2330*", "*"},
371 /*quirks*/ DA_Q_NO_6_BYTE
372 },
373 {
374 /*
375 * Minolta Dimage E203
376 */
377 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"},
378 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
379 },
380 {
381 /*
382 * DIVA USB Mp3 Player.
383 * PR: kern/33638
384 */
385 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DIVA USB", "Media Reader","*"},
386 /*quirks*/ DA_Q_NO_6_BYTE
387 },
388 {
389 /*
390 * Daisy Technology PhotoClip USB Camera
391 */
392 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Digital", "World DMC","*"},
393 /*quirks*/ DA_Q_NO_6_BYTE
394 },
395 {
396 /*
397 * Apacer HandyDrive
398 * PR: kern/43627
399 */
400 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"},
401 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
402 },
403 {
404 /*
405 * Daisy Technology PhotoClip on Zoran chip
406 * PR: kern/43580
407 */
408 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"},
409 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
410 },
411 {
412 /*
413 * HP 315 Digital Camera
414 * PR: kern/41010
415 */
416 {T_DIRECT, SIP_MEDIA_REMOVABLE, "HP", "USB CAMERA", "*"},
417 /*quirks*/ DA_Q_NO_6_BYTE
418 },
419 {
420 /*
421 * Fujitsu-Siemens Memorybird pen drive
422 * PR: kern/34712
423 */
424 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Fujitsu", "Memorybird", "*"},
425 /*quirks*/ DA_Q_NO_6_BYTE
426 },
427 {
428 /*
429 * Sony USB Key-Storage
430 * PR: kern/46386
431 */
432 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"},
433 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
434 },
435 {
436 /*
437 * Lexar Media Jumpdrive
438 * PR: kern/47006
439 */
440 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LEXAR", "DIGITAL FILM", "*"},
441 /*quirks*/ DA_Q_NO_6_BYTE
442 },
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443 {
444 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LEXAR", "JUMPDRIVE", "*"},
445 /*quirks*/ DA_Q_NO_6_BYTE
446 },
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447 {
448 /*
449 * Pentax USB Optio 230 camera
450 * PR: kern/46369
451 */
452 {T_DIRECT, SIP_MEDIA_REMOVABLE,
453 "PENTAX", "DIGITAL_CAMERA", "*"},
454 /*quirks*/ DA_Q_NO_6_BYTE
455 },
456 {
457 /*
458 * Casio QV-R3 USB camera (uses Pentax chip as above)
459 * PR: kern/46545
460 */
461 {T_DIRECT, SIP_MEDIA_REMOVABLE,
462 "CASIO", "DIGITAL_CAMERA", "*"},
463 /*quirks*/ DA_Q_NO_6_BYTE
464 },
465 {
466 /*
467 * M-Systems DiskOnKey USB flash key
468 * PR: kern/47793
469 */
470 {T_DIRECT, SIP_MEDIA_REMOVABLE, "M-Sys", "DiskOnKey", "*"},
304ea05f 471 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
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472 },
473 {
474 /*
475 * SanDisk ImageMate (I, II, ...) compact flash
476 * PR: kern/47877
477 */
478 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk", "ImageMate*", "*"},
479 /*quirks*/ DA_Q_NO_6_BYTE
480 },
481 {
482 /*
483 * Feiya "slider" dual-slot flash reader. The vendor field
484 * is blank so this may match other devices.
485 * PR: kern/50020
486 */
487 {T_DIRECT, SIP_MEDIA_REMOVABLE, "", "USB CARD READER", "*"},
488 /*quirks*/ DA_Q_NO_6_BYTE
489 },
490 {
491 /*
492 * SmartDisk (Mitsumi) USB floppy drive
493 * PR: kern/50226
494 */
495 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"},
496 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
497 },
498 {
499 /*
500 * OTi USB Flash Key
501 * PR: kern/51825
502 */
503 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OTi", "Flash Disk", "*"},
504 /*quirks*/ DA_Q_NO_6_BYTE
505 }
506};
507
508static d_open_t daopen;
509static d_close_t daclose;
510static d_strategy_t dastrategy;
511static d_ioctl_t daioctl;
512static d_dump_t dadump;
513static periph_init_t dainit;
514static void daasync(void *callback_arg, u_int32_t code,
515 struct cam_path *path, void *arg);
516static periph_ctor_t daregister;
517static periph_dtor_t dacleanup;
518static periph_start_t dastart;
519static periph_oninv_t daoninvalidate;
520static void dadone(struct cam_periph *periph,
521 union ccb *done_ccb);
522static int daerror(union ccb *ccb, u_int32_t cam_flags,
523 u_int32_t sense_flags);
524static void daprevent(struct cam_periph *periph, int action);
525static void dasetgeom(struct cam_periph *periph,
526 struct scsi_read_capacity_data * rdcap);
527static timeout_t dasendorderedtag;
528static void dashutdown(void *arg, int howto);
529
530#ifndef DA_DEFAULT_TIMEOUT
531#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
532#endif
533
534#ifndef DA_DEFAULT_RETRY
535#define DA_DEFAULT_RETRY 4
536#endif
537
538static int da_retry_count = DA_DEFAULT_RETRY;
539static int da_default_timeout = DA_DEFAULT_TIMEOUT;
540static int da_no_6_byte = 0;
541
542SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem");
543SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
544 "CAM Direct Access Disk driver");
545SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
546 &da_retry_count, 0, "Normal I/O retry count");
547SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
548 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
549SYSCTL_INT(_kern_cam_da, OID_AUTO, no_6_byte, CTLFLAG_RW,
550 &da_no_6_byte, 0, "No 6 bytes commands");
551
552/*
553 * DA_ORDEREDTAG_INTERVAL determines how often, relative
554 * to the default timeout, we check to see whether an ordered
555 * tagged transaction is appropriate to prevent simple tag
556 * starvation. Since we'd like to ensure that there is at least
557 * 1/2 of the timeout length left for a starved transaction to
558 * complete after we've sent an ordered tag, we must poll at least
559 * four times in every timeout period. This takes care of the worst
560 * case where a starved transaction starts during an interval that
561 * meets the requirement "don't send an ordered tag" test so it takes
562 * us two intervals to determine that a tag must be sent.
563 */
564#ifndef DA_ORDEREDTAG_INTERVAL
565#define DA_ORDEREDTAG_INTERVAL 4
566#endif
567
568static struct periph_driver dadriver =
569{
570 dainit, "da",
571 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
572};
573
574DATA_SET(periphdriver_set, dadriver);
575
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576/* For 2.2-stable support */
577#ifndef D_DISK
578#define D_DISK 0
579#endif
580
581static struct cdevsw da_cdevsw = {
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582 /* name */ "da",
583 /* maj */ DA_CDEV_MAJOR,
584 /* flags */ D_DISK,
585 /* port */ NULL,
586 /* autoq */ 0,
587
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588 /* open */ daopen,
589 /* close */ daclose,
590 /* read */ physread,
591 /* write */ physwrite,
592 /* ioctl */ daioctl,
593 /* poll */ nopoll,
594 /* mmap */ nommap,
595 /* strategy */ dastrategy,
984263bc 596 /* dump */ dadump,
fabb8ceb 597 /* psize */ nopsize
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598};
599
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600static SLIST_HEAD(,da_softc) softc_list;
601static struct extend_array *daperiphs;
602
603static int
41c20dac 604daopen(dev_t dev, int flags, int fmt, struct thread *td)
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605{
606 struct cam_periph *periph;
607 struct da_softc *softc;
608 struct disklabel *label;
609 int unit;
610 int part;
611 int error;
612 int s;
613
614 unit = dkunit(dev);
615 part = dkpart(dev);
616 periph = cam_extend_get(daperiphs, unit);
617 if (periph == NULL)
618 return (ENXIO);
619
620 softc = (struct da_softc *)periph->softc;
621
622 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
623 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev),
624 unit, part));
625
377d4740 626 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
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627 return (error); /* error code from tsleep */
628 }
629
630 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
631 return(ENXIO);
632 softc->flags |= DA_FLAG_OPEN;
633
634 s = splsoftcam();
635 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
636 /* Invalidate our pack information. */
637 disk_invalidate(&softc->disk);
638 softc->flags &= ~DA_FLAG_PACK_INVALID;
639 }
640 splx(s);
641
642 /* Do a read capacity */
643 {
644 struct scsi_read_capacity_data *rcap;
645 union ccb *ccb;
646
647 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
648 M_TEMP,
649 M_WAITOK);
650
651 ccb = cam_periph_getccb(periph, /*priority*/1);
652 scsi_read_capacity(&ccb->csio,
653 /*retries*/1,
654 /*cbfncp*/dadone,
655 MSG_SIMPLE_Q_TAG,
656 rcap,
657 SSD_FULL_SIZE,
658 /*timeout*/60000);
659 ccb->ccb_h.ccb_bp = NULL;
660
661 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
662 /*sense_flags*/SF_RETRY_UA |
663 SF_RETRY_SELTO,
664 &softc->device_stats);
665
666 xpt_release_ccb(ccb);
667
668 if (error == 0) {
669 dasetgeom(periph, rcap);
670 }
671
672 free(rcap, M_TEMP);
673 }
674
675 if (error == 0) {
676 struct ccb_getdev cgd;
677
678 /* Build label for whole disk. */
679 label = &softc->disk.d_label;
680 bzero(label, sizeof(*label));
681 label->d_type = DTYPE_SCSI;
682
683 /*
684 * Grab the inquiry data to get the vendor and product names.
685 * Put them in the typename and packname for the label.
686 */
687 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
688 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
689 xpt_action((union ccb *)&cgd);
690
691 strncpy(label->d_typename, cgd.inq_data.vendor,
692 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
693 strncpy(label->d_packname, cgd.inq_data.product,
694 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
695
696 label->d_secsize = softc->params.secsize;
697 label->d_nsectors = softc->params.secs_per_track;
698 label->d_ntracks = softc->params.heads;
699 label->d_ncylinders = softc->params.cylinders;
700 label->d_secpercyl = softc->params.heads
701 * softc->params.secs_per_track;
702 label->d_secperunit = softc->params.sectors;
703
704 if (((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)) {
705 daprevent(periph, PR_PREVENT);
706 }
707
708 /*
709 * Check to see whether or not the blocksize is set yet.
710 * If it isn't, set it and then clear the blocksize
711 * unavailable flag for the device statistics.
712 */
713 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){
714 softc->device_stats.block_size = softc->params.secsize;
715 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
716 }
717 }
718
719 if (error != 0) {
720 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
721 daprevent(periph, PR_ALLOW);
722 }
723 softc->flags &= ~DA_FLAG_OPEN;
724 cam_periph_release(periph);
725 }
726 cam_periph_unlock(periph);
727 return (error);
728}
729
730static int
41c20dac 731daclose(dev_t dev, int flag, int fmt, struct thread *td)
984263bc
MD
732{
733 struct cam_periph *periph;
734 struct da_softc *softc;
735 int unit;
736 int error;
737
738 unit = dkunit(dev);
739 periph = cam_extend_get(daperiphs, unit);
740 if (periph == NULL)
741 return (ENXIO);
742
743 softc = (struct da_softc *)periph->softc;
744
377d4740 745 if ((error = cam_periph_lock(periph, 0)) != 0) {
984263bc
MD
746 return (error); /* error code from tsleep */
747 }
748
749 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
750 union ccb *ccb;
751
752 ccb = cam_periph_getccb(periph, /*priority*/1);
753
754 scsi_synchronize_cache(&ccb->csio,
755 /*retries*/1,
756 /*cbfcnp*/dadone,
757 MSG_SIMPLE_Q_TAG,
758 /*begin_lba*/0,/* Cover the whole disk */
759 /*lb_count*/0,
760 SSD_FULL_SIZE,
761 5 * 60 * 1000);
762
763 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
764 /*sense_flags*/SF_RETRY_UA,
765 &softc->device_stats);
766
767 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
768 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
769 CAM_SCSI_STATUS_ERROR) {
770 int asc, ascq;
771 int sense_key, error_code;
772
773 scsi_extract_sense(&ccb->csio.sense_data,
774 &error_code,
775 &sense_key,
776 &asc, &ascq);
777 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
778 scsi_sense_print(&ccb->csio);
779 } else {
780 xpt_print_path(periph->path);
781 printf("Synchronize cache failed, status "
782 "== 0x%x, scsi status == 0x%x\n",
783 ccb->csio.ccb_h.status,
784 ccb->csio.scsi_status);
785 }
786 }
787
788 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
789 cam_release_devq(ccb->ccb_h.path,
790 /*relsim_flags*/0,
791 /*reduction*/0,
792 /*timeout*/0,
793 /*getcount_only*/0);
794
795 xpt_release_ccb(ccb);
796
797 }
798
799 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
800 daprevent(periph, PR_ALLOW);
801 /*
802 * If we've got removeable media, mark the blocksize as
803 * unavailable, since it could change when new media is
804 * inserted.
805 */
806 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
807 }
808
809 softc->flags &= ~DA_FLAG_OPEN;
810 cam_periph_unlock(periph);
811 cam_periph_release(periph);
812 return (0);
813}
814
815/*
816 * Actually translate the requested transfer into one the physical driver
817 * can understand. The transfer is described by a buf and will include
818 * only one physical transfer.
819 */
820static void
821dastrategy(struct buf *bp)
822{
823 struct cam_periph *periph;
824 struct da_softc *softc;
825 u_int unit;
826 u_int part;
827 int s;
828
829 unit = dkunit(bp->b_dev);
830 part = dkpart(bp->b_dev);
831 periph = cam_extend_get(daperiphs, unit);
832 if (periph == NULL) {
833 bp->b_error = ENXIO;
834 goto bad;
835 }
836 softc = (struct da_softc *)periph->softc;
837#if 0
838 /*
839 * check it's not too big a transfer for our adapter
840 */
841 scsi_minphys(bp,&sd_switch);
842#endif
843
844 /*
845 * Mask interrupts so that the pack cannot be invalidated until
846 * after we are in the queue. Otherwise, we might not properly
847 * clean up one of the buffers.
848 */
849 s = splbio();
850
851 /*
852 * If the device has been made invalid, error out
853 */
854 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
855 splx(s);
856 bp->b_error = ENXIO;
857 goto bad;
858 }
859
860 /*
861 * Place it in the queue of disk activities for this disk
862 */
863 bufqdisksort(&softc->buf_queue, bp);
864
865 splx(s);
866
867 /*
868 * Schedule ourselves for performing the work.
869 */
870 xpt_schedule(periph, /* XXX priority */1);
871
872 return;
873bad:
874 bp->b_flags |= B_ERROR;
875
876 /*
877 * Correctly set the buf to indicate a completed xfer
878 */
879 bp->b_resid = bp->b_bcount;
880 biodone(bp);
881 return;
882}
883
884/* For 2.2-stable support */
885#ifndef ENOIOCTL
886#define ENOIOCTL -1
887#endif
888
889static int
41c20dac 890daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
984263bc
MD
891{
892 struct cam_periph *periph;
893 struct da_softc *softc;
894 int unit;
895 int error;
896
897 unit = dkunit(dev);
898 periph = cam_extend_get(daperiphs, unit);
899 if (periph == NULL)
900 return (ENXIO);
901
902 softc = (struct da_softc *)periph->softc;
903
904 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n"));
905
377d4740 906 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
984263bc
MD
907 return (error); /* error code from tsleep */
908 }
909
910 error = cam_periph_ioctl(periph, cmd, addr, daerror);
911
912 cam_periph_unlock(periph);
913
914 return (error);
915}
916
917static int
918dadump(dev_t dev)
919{
920 struct cam_periph *periph;
921 struct da_softc *softc;
922 u_int unit;
923 u_int part;
924 u_int secsize;
925 u_int num; /* number of sectors to write */
926 u_int blknum;
927 long blkcnt;
928 vm_offset_t addr;
929 struct ccb_scsiio csio;
930 int dumppages = MAXDUMPPGS;
931 int error;
932 int i;
933
934 /* toss any characters present prior to dump */
935 while (cncheckc() != -1)
936 ;
937
938 unit = dkunit(dev);
939 part = dkpart(dev);
940 periph = cam_extend_get(daperiphs, unit);
941 if (periph == NULL) {
942 return (ENXIO);
943 }
944 softc = (struct da_softc *)periph->softc;
945
946 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
947 return (ENXIO);
948
949 error = disk_dumpcheck(dev, &num, &blknum, &secsize);
950 if (error)
951 return (error);
952
953 addr = 0; /* starting address */
954 blkcnt = howmany(PAGE_SIZE, secsize);
955
956 while (num > 0) {
957 caddr_t va = NULL;
958
959 if ((num / blkcnt) < dumppages)
960 dumppages = num / blkcnt;
961
962 for (i = 0; i < dumppages; ++i) {
963 vm_offset_t a = addr + (i * PAGE_SIZE);
964 if (is_physical_memory(a))
965 va = pmap_kenter_temporary(trunc_page(a), i);
966 else
967 va = pmap_kenter_temporary(trunc_page(0), i);
968 }
969
970 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
971 csio.ccb_h.ccb_state = DA_CCB_DUMP;
972 scsi_read_write(&csio,
973 /*retries*/1,
974 dadone,
975 MSG_ORDERED_Q_TAG,
976 /*read*/FALSE,
977 /*byte2*/0,
978 /*minimum_cmd_size*/ softc->minimum_cmd_size,
979 blknum,
980 blkcnt * dumppages,
981 /*data_ptr*/(u_int8_t *) va,
982 /*dxfer_len*/blkcnt * secsize * dumppages,
983 /*sense_len*/SSD_FULL_SIZE,
984 DA_DEFAULT_TIMEOUT * 1000);
985 xpt_polled_action((union ccb *)&csio);
986
987 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
988 printf("Aborting dump due to I/O error.\n");
989 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
990 CAM_SCSI_STATUS_ERROR)
991 scsi_sense_print(&csio);
992 else
993 printf("status == 0x%x, scsi status == 0x%x\n",
994 csio.ccb_h.status, csio.scsi_status);
995 return(EIO);
996 }
997
998 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0)
999 return (EINTR);
1000
1001 /* update block count */
1002 num -= blkcnt * dumppages;
1003 blknum += blkcnt * dumppages;
1004 addr += PAGE_SIZE * dumppages;
1005 }
1006
1007 /*
1008 * Sync the disk cache contents to the physical media.
1009 */
1010 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1011
1012 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
1013 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1014 scsi_synchronize_cache(&csio,
1015 /*retries*/1,
1016 /*cbfcnp*/dadone,
1017 MSG_SIMPLE_Q_TAG,
1018 /*begin_lba*/0,/* Cover the whole disk */
1019 /*lb_count*/0,
1020 SSD_FULL_SIZE,
1021 5 * 60 * 1000);
1022 xpt_polled_action((union ccb *)&csio);
1023
1024 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1025 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1026 CAM_SCSI_STATUS_ERROR) {
1027 int asc, ascq;
1028 int sense_key, error_code;
1029
1030 scsi_extract_sense(&csio.sense_data,
1031 &error_code,
1032 &sense_key,
1033 &asc, &ascq);
1034 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1035 scsi_sense_print(&csio);
1036 } else {
1037 xpt_print_path(periph->path);
1038 printf("Synchronize cache failed, status "
1039 "== 0x%x, scsi status == 0x%x\n",
1040 csio.ccb_h.status, csio.scsi_status);
1041 }
1042 }
1043 }
1044 return (0);
1045}
1046
1047static void
1048dainit(void)
1049{
1050 cam_status status;
1051 struct cam_path *path;
1052
1053 /*
1054 * Create our extend array for storing the devices we attach to.
1055 */
1056 daperiphs = cam_extend_new();
1057 SLIST_INIT(&softc_list);
1058 if (daperiphs == NULL) {
1059 printf("da: Failed to alloc extend array!\n");
1060 return;
1061 }
1062
1063 /*
1064 * Install a global async callback. This callback will
1065 * receive async callbacks like "new device found".
1066 */
1067 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
1068 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
1069
1070 if (status == CAM_REQ_CMP) {
1071 struct ccb_setasync csa;
1072
1073 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
1074 csa.ccb_h.func_code = XPT_SASYNC_CB;
1075 csa.event_enable = AC_FOUND_DEVICE;
1076 csa.callback = daasync;
1077 csa.callback_arg = NULL;
1078 xpt_action((union ccb *)&csa);
1079 status = csa.ccb_h.status;
1080 xpt_free_path(path);
1081 }
1082
1083 if (status != CAM_REQ_CMP) {
1084 printf("da: Failed to attach master async callback "
1085 "due to status 0x%x!\n", status);
1086 } else {
1087
1088 /*
1089 * Schedule a periodic event to occasionally send an
1090 * ordered tag to a device.
1091 */
1092 timeout(dasendorderedtag, NULL,
1093 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
1094
1095 /* Register our shutdown event handler */
1096 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1097 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1098 printf("dainit: shutdown event registration failed!\n");
1099 }
1100}
1101
1102static void
1103daoninvalidate(struct cam_periph *periph)
1104{
1105 int s;
1106 struct da_softc *softc;
1107 struct buf *q_bp;
1108 struct ccb_setasync csa;
1109
1110 softc = (struct da_softc *)periph->softc;
1111
1112 /*
1113 * De-register any async callbacks.
1114 */
1115 xpt_setup_ccb(&csa.ccb_h, periph->path,
1116 /* priority */ 5);
1117 csa.ccb_h.func_code = XPT_SASYNC_CB;
1118 csa.event_enable = 0;
1119 csa.callback = daasync;
1120 csa.callback_arg = periph;
1121 xpt_action((union ccb *)&csa);
1122
1123 softc->flags |= DA_FLAG_PACK_INVALID;
1124
1125 /*
1126 * Although the oninvalidate() routines are always called at
1127 * splsoftcam, we need to be at splbio() here to keep the buffer
1128 * queue from being modified while we traverse it.
1129 */
1130 s = splbio();
1131
1132 /*
1133 * Return all queued I/O with ENXIO.
1134 * XXX Handle any transactions queued to the card
1135 * with XPT_ABORT_CCB.
1136 */
1137 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
1138 bufq_remove(&softc->buf_queue, q_bp);
1139 q_bp->b_resid = q_bp->b_bcount;
1140 q_bp->b_error = ENXIO;
1141 q_bp->b_flags |= B_ERROR;
1142 biodone(q_bp);
1143 }
1144 splx(s);
1145
1146 SLIST_REMOVE(&softc_list, softc, da_softc, links);
1147
1148 xpt_print_path(periph->path);
1149 printf("lost device\n");
1150}
1151
1152static void
1153dacleanup(struct cam_periph *periph)
1154{
1155 struct da_softc *softc;
1156
1157 softc = (struct da_softc *)periph->softc;
1158
1159 devstat_remove_entry(&softc->device_stats);
1160 cam_extend_release(daperiphs, periph->unit_number);
1161 xpt_print_path(periph->path);
1162 printf("removing device entry\n");
1163 if (softc->disk.d_dev) {
335dda38 1164 disk_destroy(&softc->disk);
984263bc
MD
1165 }
1166 free(softc, M_DEVBUF);
1167}
1168
1169static void
1170daasync(void *callback_arg, u_int32_t code,
1171 struct cam_path *path, void *arg)
1172{
1173 struct cam_periph *periph;
1174
1175 periph = (struct cam_periph *)callback_arg;
1176 switch (code) {
1177 case AC_FOUND_DEVICE:
1178 {
1179 struct ccb_getdev *cgd;
1180 cam_status status;
1181
1182 cgd = (struct ccb_getdev *)arg;
1183
1184 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1185 && SID_TYPE(&cgd->inq_data) != T_RBC
1186 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1187 break;
1188
1189 /*
1190 * Allocate a peripheral instance for
1191 * this device and start the probe
1192 * process.
1193 */
1194 status = cam_periph_alloc(daregister, daoninvalidate,
1195 dacleanup, dastart,
1196 "da", CAM_PERIPH_BIO,
1197 cgd->ccb_h.path, daasync,
1198 AC_FOUND_DEVICE, cgd);
1199
1200 if (status != CAM_REQ_CMP
1201 && status != CAM_REQ_INPROG)
1202 printf("daasync: Unable to attach to new device "
1203 "due to status 0x%x\n", status);
1204 break;
1205 }
1206 case AC_SENT_BDR:
1207 case AC_BUS_RESET:
1208 {
1209 struct da_softc *softc;
1210 struct ccb_hdr *ccbh;
1211 int s;
1212
1213 softc = (struct da_softc *)periph->softc;
1214 s = splsoftcam();
1215 /*
1216 * Don't fail on the expected unit attention
1217 * that will occur.
1218 */
1219 softc->flags |= DA_FLAG_RETRY_UA;
1220 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
1221 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
1222 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1223 splx(s);
1224 /* FALLTHROUGH*/
1225 }
1226 default:
1227 cam_periph_async(periph, code, path, arg);
1228 break;
1229 }
1230}
1231
1232static cam_status
1233daregister(struct cam_periph *periph, void *arg)
1234{
1235 int s;
1236 struct da_softc *softc;
1237 struct ccb_setasync csa;
1238 struct ccb_getdev *cgd;
1239 caddr_t match;
1240
1241 cgd = (struct ccb_getdev *)arg;
1242 if (periph == NULL) {
1243 printf("daregister: periph was NULL!!\n");
1244 return(CAM_REQ_CMP_ERR);
1245 }
1246
1247 if (cgd == NULL) {
1248 printf("daregister: no getdev CCB, can't register device\n");
1249 return(CAM_REQ_CMP_ERR);
1250 }
1251
1252 softc = (struct da_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
1253
1254 if (softc == NULL) {
1255 printf("daregister: Unable to probe new device. "
1256 "Unable to allocate softc\n");
1257 return(CAM_REQ_CMP_ERR);
1258 }
1259
1260 bzero(softc, sizeof(*softc));
1261 LIST_INIT(&softc->pending_ccbs);
1262 softc->state = DA_STATE_PROBE;
1263 bufq_init(&softc->buf_queue);
1264 if (SID_IS_REMOVABLE(&cgd->inq_data))
1265 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1266 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1267 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1268
1269 periph->softc = softc;
1270
1271 cam_extend_set(daperiphs, periph->unit_number, periph);
1272
1273 /*
1274 * See if this device has any quirks.
1275 */
1276 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1277 (caddr_t)da_quirk_table,
1278 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1279 sizeof(*da_quirk_table), scsi_inquiry_match);
1280
1281 if (match != NULL)
1282 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1283 else
1284 softc->quirks = DA_Q_NONE;
1285
1286 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1287 softc->minimum_cmd_size = 10;
1288 else
1289 softc->minimum_cmd_size = 6;
1290
1291 /*
1292 * Block our timeout handler while we
1293 * add this softc to the dev list.
1294 */
1295 s = splsoftclock();
1296 SLIST_INSERT_HEAD(&softc_list, softc, links);
1297 splx(s);
1298
1299 /*
1300 * The DA driver supports a blocksize, but
1301 * we don't know the blocksize until we do
1302 * a read capacity. So, set a flag to
1303 * indicate that the blocksize is
1304 * unavailable right now. We'll clear the
1305 * flag as soon as we've done a read capacity.
1306 */
1307 devstat_add_entry(&softc->device_stats, "da",
1308 periph->unit_number, 0,
1309 DEVSTAT_BS_UNAVAILABLE,
1310 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
1311 DEVSTAT_PRIORITY_DISK);
1312
1313 /*
1314 * Register this media as a disk
1315 */
335dda38 1316 disk_create(periph->unit_number, &softc->disk, 0, &da_cdevsw);
984263bc
MD
1317
1318 /*
1319 * Add async callbacks for bus reset and
1320 * bus device reset calls. I don't bother
1321 * checking if this fails as, in most cases,
1322 * the system will function just fine without
1323 * them and the only alternative would be to
1324 * not attach the device on failure.
1325 */
1326 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
1327 csa.ccb_h.func_code = XPT_SASYNC_CB;
1328 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
1329 csa.callback = daasync;
1330 csa.callback_arg = periph;
1331 xpt_action((union ccb *)&csa);
1332 /*
1333 * Lock this peripheral until we are setup.
1334 * This first call can't block
1335 */
377d4740 1336 (void)cam_periph_lock(periph, 0);
984263bc
MD
1337 xpt_schedule(periph, /*priority*/5);
1338
1339 return(CAM_REQ_CMP);
1340}
1341
1342static void
1343dastart(struct cam_periph *periph, union ccb *start_ccb)
1344{
1345 struct da_softc *softc;
1346
1347 softc = (struct da_softc *)periph->softc;
1348
1349
1350 switch (softc->state) {
1351 case DA_STATE_NORMAL:
1352 {
1353 /* Pull a buffer from the queue and get going on it */
1354 struct buf *bp;
1355 int s;
1356
1357 /*
1358 * See if there is a buf with work for us to do..
1359 */
1360 s = splbio();
1361 bp = bufq_first(&softc->buf_queue);
1362 if (periph->immediate_priority <= periph->pinfo.priority) {
1363 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1364 ("queuing for immediate ccb\n"));
1365 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1366 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1367 periph_links.sle);
1368 periph->immediate_priority = CAM_PRIORITY_NONE;
1369 splx(s);
1370 wakeup(&periph->ccb_list);
1371 } else if (bp == NULL) {
1372 splx(s);
1373 xpt_release_ccb(start_ccb);
1374 } else {
1375 int oldspl;
1376 u_int8_t tag_code;
1377
1378 bufq_remove(&softc->buf_queue, bp);
1379
1380 devstat_start_transaction(&softc->device_stats);
1381
1382 if ((bp->b_flags & B_ORDERED) != 0
1383 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1384 softc->flags &= ~DA_FLAG_NEED_OTAG;
1385 softc->ordered_tag_count++;
1386 tag_code = MSG_ORDERED_Q_TAG;
1387 } else {
1388 tag_code = MSG_SIMPLE_Q_TAG;
1389 }
1390 if (da_no_6_byte && softc->minimum_cmd_size == 6)
1391 softc->minimum_cmd_size = 10;
1392 scsi_read_write(&start_ccb->csio,
1393 /*retries*/da_retry_count,
1394 dadone,
1395 tag_code,
1396 bp->b_flags & B_READ,
1397 /*byte2*/0,
1398 softc->minimum_cmd_size,
1399 bp->b_pblkno,
1400 bp->b_bcount / softc->params.secsize,
1401 bp->b_data,
1402 bp->b_bcount,
1403 /*sense_len*/SSD_FULL_SIZE,
1404 da_default_timeout * 1000);
1405 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1406
1407 /*
1408 * Block out any asyncronous callbacks
1409 * while we touch the pending ccb list.
1410 */
1411 oldspl = splcam();
1412 LIST_INSERT_HEAD(&softc->pending_ccbs,
1413 &start_ccb->ccb_h, periph_links.le);
1414 splx(oldspl);
1415
1416 /* We expect a unit attention from this device */
1417 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1418 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1419 softc->flags &= ~DA_FLAG_RETRY_UA;
1420 }
1421
1422 start_ccb->ccb_h.ccb_bp = bp;
1423 bp = bufq_first(&softc->buf_queue);
1424 splx(s);
1425
1426 xpt_action(start_ccb);
1427 }
1428
1429 if (bp != NULL) {
1430 /* Have more work to do, so ensure we stay scheduled */
1431 xpt_schedule(periph, /* XXX priority */1);
1432 }
1433 break;
1434 }
1435 case DA_STATE_PROBE:
1436 {
1437 struct ccb_scsiio *csio;
1438 struct scsi_read_capacity_data *rcap;
1439
1440 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
1441 M_TEMP,
1442 M_NOWAIT);
1443 if (rcap == NULL) {
1444 printf("dastart: Couldn't malloc read_capacity data\n");
1445 /* da_free_periph??? */
1446 break;
1447 }
1448 csio = &start_ccb->csio;
1449 scsi_read_capacity(csio,
1450 /*retries*/4,
1451 dadone,
1452 MSG_SIMPLE_Q_TAG,
1453 rcap,
1454 SSD_FULL_SIZE,
1455 /*timeout*/5000);
1456 start_ccb->ccb_h.ccb_bp = NULL;
1457 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1458 xpt_action(start_ccb);
1459 break;
1460 }
1461 }
1462}
1463
1464static int
1465cmd6workaround(union ccb *ccb)
1466{
1467 struct scsi_rw_6 cmd6;
1468 struct scsi_rw_10 *cmd10;
1469 struct da_softc *softc;
1470 u_int8_t *cdb;
1471 int frozen;
1472
1473 cdb = ccb->csio.cdb_io.cdb_bytes;
1474
1475 /* Translation only possible if CDB is an array and cmd is R/W6 */
1476 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1477 (*cdb != READ_6 && *cdb != WRITE_6))
1478 return 0;
1479
1480 xpt_print_path(ccb->ccb_h.path);
1481 printf("READ(6)/WRITE(6) not supported, "
1482 "increasing minimum_cmd_size to 10.\n");
1483 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1484 softc->minimum_cmd_size = 10;
1485
1486 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1487 cmd10 = (struct scsi_rw_10 *)cdb;
1488 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1489 cmd10->byte2 = 0;
1490 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1491 cmd10->reserved = 0;
1492 scsi_ulto2b(cmd6.length, cmd10->length);
1493 cmd10->control = cmd6.control;
1494 ccb->csio.cdb_len = sizeof(*cmd10);
1495
1496 /* Requeue request, unfreezing queue if necessary */
1497 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1498 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1499 xpt_action(ccb);
1500 if (frozen) {
1501 cam_release_devq(ccb->ccb_h.path,
1502 /*relsim_flags*/0,
1503 /*reduction*/0,
1504 /*timeout*/0,
1505 /*getcount_only*/0);
1506 }
1507 return (ERESTART);
1508}
1509
1510static void
1511dadone(struct cam_periph *periph, union ccb *done_ccb)
1512{
1513 struct da_softc *softc;
1514 struct ccb_scsiio *csio;
1515
1516 softc = (struct da_softc *)periph->softc;
1517 csio = &done_ccb->csio;
1518 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1519 case DA_CCB_BUFFER_IO:
1520 {
1521 struct buf *bp;
1522 int oldspl;
1523
1524 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
1525 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1526 int error;
1527 int s;
1528 int sf;
1529
1530 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1531 sf = SF_RETRY_UA;
1532 else
1533 sf = 0;
1534
1535 /* Retry selection timeouts */
1536 sf |= SF_RETRY_SELTO;
1537
1538 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) {
1539 /*
1540 * A retry was scheuled, so
1541 * just return.
1542 */
1543 return;
1544 }
1545 if (error != 0) {
1546 struct buf *q_bp;
1547
1548 s = splbio();
1549
1550 if (error == ENXIO) {
1551 /*
1552 * Catastrophic error. Mark our pack as
1553 * invalid.
1554 */
1555 /* XXX See if this is really a media
1556 * change first.
1557 */
1558 xpt_print_path(periph->path);
1559 printf("Invalidating pack\n");
1560 softc->flags |= DA_FLAG_PACK_INVALID;
1561 }
1562
1563 /*
1564 * return all queued I/O with EIO, so that
1565 * the client can retry these I/Os in the
1566 * proper order should it attempt to recover.
1567 */
1568 while ((q_bp = bufq_first(&softc->buf_queue))
1569 != NULL) {
1570 bufq_remove(&softc->buf_queue, q_bp);
1571 q_bp->b_resid = q_bp->b_bcount;
1572 q_bp->b_error = EIO;
1573 q_bp->b_flags |= B_ERROR;
1574 biodone(q_bp);
1575 }
1576 splx(s);
1577 bp->b_error = error;
1578 bp->b_resid = bp->b_bcount;
1579 bp->b_flags |= B_ERROR;
1580 } else {
1581 bp->b_resid = csio->resid;
1582 bp->b_error = 0;
1583 if (bp->b_resid != 0) {
1584 /* Short transfer ??? */
1585#if 0
1586 if (cmd6workaround(done_ccb)
1587 == ERESTART)
1588 return;
1589#endif
1590 bp->b_flags |= B_ERROR;
1591 }
1592 }
1593 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1594 cam_release_devq(done_ccb->ccb_h.path,
1595 /*relsim_flags*/0,
1596 /*reduction*/0,
1597 /*timeout*/0,
1598 /*getcount_only*/0);
1599 } else {
1600 bp->b_resid = csio->resid;
1601 if (csio->resid > 0) {
1602 /* Short transfer ??? */
1603#if 0 /* XXX most of the broken umass devices need this ad-hoc work around */
1604 if (cmd6workaround(done_ccb) == ERESTART)
1605 return;
1606#endif
1607 bp->b_flags |= B_ERROR;
1608 }
1609 }
1610
1611 /*
1612 * Block out any asyncronous callbacks
1613 * while we touch the pending ccb list.
1614 */
1615 oldspl = splcam();
1616 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1617 splx(oldspl);
1618
1619 if (softc->device_stats.busy_count == 0)
1620 softc->flags |= DA_FLAG_WENT_IDLE;
1621
1622 devstat_end_transaction_buf(&softc->device_stats, bp);
1623 biodone(bp);
1624 break;
1625 }
1626 case DA_CCB_PROBE:
1627 {
1628 struct scsi_read_capacity_data *rdcap;
1629 char announce_buf[80];
1630
1631 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1632
1633 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1634 struct disk_params *dp;
1635
1636 dasetgeom(periph, rdcap);
1637 dp = &softc->params;
1638 snprintf(announce_buf, sizeof(announce_buf),
1639 "%luMB (%u %u byte sectors: %dH %dS/T %dC)",
1640 (unsigned long) (((u_int64_t)dp->secsize *
1641 dp->sectors) / (1024*1024)), dp->sectors,
1642 dp->secsize, dp->heads, dp->secs_per_track,
1643 dp->cylinders);
1644 } else {
1645 int error;
1646
1647 announce_buf[0] = '\0';
1648
1649 /*
1650 * Retry any UNIT ATTENTION type errors. They
1651 * are expected at boot.
1652 */
1653 error = daerror(done_ccb, 0, SF_RETRY_UA |
1654 SF_RETRY_SELTO | SF_NO_PRINT);
1655 if (error == ERESTART) {
1656 /*
1657 * A retry was scheuled, so
1658 * just return.
1659 */
1660 return;
1661 } else if (error != 0) {
1662 struct scsi_sense_data *sense;
1663 int asc, ascq;
1664 int sense_key, error_code;
1665 int have_sense;
1666 cam_status status;
1667 struct ccb_getdev cgd;
1668
1669 /* Don't wedge this device's queue */
1670 cam_release_devq(done_ccb->ccb_h.path,
1671 /*relsim_flags*/0,
1672 /*reduction*/0,
1673 /*timeout*/0,
1674 /*getcount_only*/0);
1675
1676 status = done_ccb->ccb_h.status;
1677
1678 xpt_setup_ccb(&cgd.ccb_h,
1679 done_ccb->ccb_h.path,
1680 /* priority */ 1);
1681 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1682 xpt_action((union ccb *)&cgd);
1683
1684 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1685 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1686 || ((status & CAM_AUTOSNS_VALID) == 0))
1687 have_sense = FALSE;
1688 else
1689 have_sense = TRUE;
1690
1691 if (have_sense) {
1692 sense = &csio->sense_data;
1693 scsi_extract_sense(sense, &error_code,
1694 &sense_key,
1695 &asc, &ascq);
1696 }
1697 /*
1698 * Attach to anything that claims to be a
1699 * direct access or optical disk device,
1700 * as long as it doesn't return a "Logical
1701 * unit not supported" (0x25) error.
1702 */
1703 if ((have_sense) && (asc != 0x25)
1704 && (error_code == SSD_CURRENT_ERROR))
1705 snprintf(announce_buf,
1706 sizeof(announce_buf),
1707 "Attempt to query device "
1708 "size failed: %s, %s",
1709 scsi_sense_key_text[sense_key],
1710 scsi_sense_desc(asc,ascq,
1711 &cgd.inq_data));
1712 else {
1713 if (have_sense)
1714 scsi_sense_print(
1715 &done_ccb->csio);
1716 else {
1717 xpt_print_path(periph->path);
1718 printf("got CAM status %#x\n",
1719 done_ccb->ccb_h.status);
1720 }
1721
1722 xpt_print_path(periph->path);
1723 printf("fatal error, failed"
1724 " to attach to device\n");
1725
1726 /*
1727 * Free up resources.
1728 */
1729 cam_periph_invalidate(periph);
1730 }
1731 }
1732 }
1733 free(rdcap, M_TEMP);
1734 if (announce_buf[0] != '\0')
1735 xpt_announce_periph(periph, announce_buf);
1736 softc->state = DA_STATE_NORMAL;
1737 /*
1738 * Since our peripheral may be invalidated by an error
1739 * above or an external event, we must release our CCB
1740 * before releasing the probe lock on the peripheral.
1741 * The peripheral will only go away once the last lock
1742 * is removed, and we need it around for the CCB release
1743 * operation.
1744 */
1745 xpt_release_ccb(done_ccb);
1746 cam_periph_unlock(periph);
1747 return;
1748 }
1749 case DA_CCB_WAITING:
1750 {
1751 /* Caller will release the CCB */
1752 wakeup(&done_ccb->ccb_h.cbfcnp);
1753 return;
1754 }
1755 case DA_CCB_DUMP:
1756 /* No-op. We're polling */
1757 return;
1758 default:
1759 break;
1760 }
1761 xpt_release_ccb(done_ccb);
1762}
1763
1764static int
1765daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1766{
1767 struct da_softc *softc;
1768 struct cam_periph *periph;
1769 int error, sense_key, error_code, asc, ascq;
1770
1771 periph = xpt_path_periph(ccb->ccb_h.path);
1772 softc = (struct da_softc *)periph->softc;
1773
1774 /*
1775 * Automatically detect devices that do not support
1776 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1777 */
1778 error = 0;
1779 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR
1780 && ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) {
1781 scsi_extract_sense(&ccb->csio.sense_data,
1782 &error_code, &sense_key, &asc, &ascq);
1783 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1784 error = cmd6workaround(ccb);
1785 }
1786 if (error == ERESTART)
1787 return (ERESTART);
1788
1789 /*
1790 * XXX
1791 * Until we have a better way of doing pack validation,
1792 * don't treat UAs as errors.
1793 */
1794 sense_flags |= SF_RETRY_UA;
1795 return(cam_periph_error(ccb, cam_flags, sense_flags,
1796 &softc->saved_ccb));
1797}
1798
1799static void
1800daprevent(struct cam_periph *periph, int action)
1801{
1802 struct da_softc *softc;
1803 union ccb *ccb;
1804 int error;
1805
1806 softc = (struct da_softc *)periph->softc;
1807
1808 if (((action == PR_ALLOW)
1809 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1810 || ((action == PR_PREVENT)
1811 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1812 return;
1813 }
1814
1815 ccb = cam_periph_getccb(periph, /*priority*/1);
1816
1817 scsi_prevent(&ccb->csio,
1818 /*retries*/1,
1819 /*cbcfp*/dadone,
1820 MSG_SIMPLE_Q_TAG,
1821 action,
1822 SSD_FULL_SIZE,
1823 5000);
1824
1825 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
1826 /*sense_flags*/0, &softc->device_stats);
1827
1828 if (error == 0) {
1829 if (action == PR_ALLOW)
1830 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1831 else
1832 softc->flags |= DA_FLAG_PACK_LOCKED;
1833 }
1834
1835 xpt_release_ccb(ccb);
1836}
1837
1838static void
1839dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap)
1840{
1841 struct ccb_calc_geometry ccg;
1842 struct da_softc *softc;
1843 struct disk_params *dp;
1844
1845 softc = (struct da_softc *)periph->softc;
1846
1847 dp = &softc->params;
1848 dp->secsize = scsi_4btoul(rdcap->length);
1849 dp->sectors = scsi_4btoul(rdcap->addr) + 1;
1850 /*
1851 * Have the controller provide us with a geometry
1852 * for this disk. The only time the geometry
1853 * matters is when we boot and the controller
1854 * is the only one knowledgeable enough to come
1855 * up with something that will make this a bootable
1856 * device.
1857 */
1858 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1859 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1860 ccg.block_size = dp->secsize;
1861 ccg.volume_size = dp->sectors;
1862 ccg.heads = 0;
1863 ccg.secs_per_track = 0;
1864 ccg.cylinders = 0;
1865 xpt_action((union ccb*)&ccg);
1866 dp->heads = ccg.heads;
1867 dp->secs_per_track = ccg.secs_per_track;
1868 dp->cylinders = ccg.cylinders;
1869}
1870
1871static void
1872dasendorderedtag(void *arg)
1873{
1874 struct da_softc *softc;
1875 int s;
1876
1877 for (softc = SLIST_FIRST(&softc_list);
1878 softc != NULL;
1879 softc = SLIST_NEXT(softc, links)) {
1880 s = splsoftcam();
1881 if ((softc->ordered_tag_count == 0)
1882 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
1883 softc->flags |= DA_FLAG_NEED_OTAG;
1884 }
1885 if (softc->device_stats.busy_count > 0)
1886 softc->flags &= ~DA_FLAG_WENT_IDLE;
1887
1888 softc->ordered_tag_count = 0;
1889 splx(s);
1890 }
1891 /* Queue us up again */
1892 timeout(dasendorderedtag, NULL,
1893 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
1894}
1895
1896/*
1897 * Step through all DA peripheral drivers, and if the device is still open,
1898 * sync the disk cache to physical media.
1899 */
1900static void
1901dashutdown(void * arg, int howto)
1902{
1903 struct cam_periph *periph;
1904 struct da_softc *softc;
1905
1906 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL;
1907 periph = TAILQ_NEXT(periph, unit_links)) {
1908 union ccb ccb;
1909 softc = (struct da_softc *)periph->softc;
1910
1911 /*
1912 * We only sync the cache if the drive is still open, and
1913 * if the drive is capable of it..
1914 */
1915 if (((softc->flags & DA_FLAG_OPEN) == 0)
1916 || (softc->quirks & DA_Q_NO_SYNC_CACHE))
1917 continue;
1918
1919 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
1920
1921 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
1922 scsi_synchronize_cache(&ccb.csio,
1923 /*retries*/1,
1924 /*cbfcnp*/dadone,
1925 MSG_SIMPLE_Q_TAG,
1926 /*begin_lba*/0, /* whole disk */
1927 /*lb_count*/0,
1928 SSD_FULL_SIZE,
1929 5 * 60 * 1000);
1930
1931 xpt_polled_action(&ccb);
1932
1933 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1934 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
1935 CAM_SCSI_STATUS_ERROR)
1936 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
1937 int error_code, sense_key, asc, ascq;
1938
1939 scsi_extract_sense(&ccb.csio.sense_data,
1940 &error_code, &sense_key,
1941 &asc, &ascq);
1942
1943 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1944 scsi_sense_print(&ccb.csio);
1945 } else {
1946 xpt_print_path(periph->path);
1947 printf("Synchronize cache failed, status "
1948 "== 0x%x, scsi status == 0x%x\n",
1949 ccb.ccb_h.status, ccb.csio.scsi_status);
1950 }
1951 }
1952
1953 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1954 cam_release_devq(ccb.ccb_h.path,
1955 /*relsim_flags*/0,
1956 /*reduction*/0,
1957 /*timeout*/0,
1958 /*getcount_only*/0);
1959
1960 }
1961}
1962
1963#else /* !_KERNEL */
1964
1965/*
1966 * XXX This is only left out of the kernel build to silence warnings. If,
1967 * for some reason this function is used in the kernel, the ifdefs should
1968 * be moved so it is included both in the kernel and userland.
1969 */
1970void
1971scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
1972 void (*cbfcnp)(struct cam_periph *, union ccb *),
1973 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
1974 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
1975 u_int32_t timeout)
1976{
1977 struct scsi_format_unit *scsi_cmd;
1978
1979 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
1980 scsi_cmd->opcode = FORMAT_UNIT;
1981 scsi_cmd->byte2 = byte2;
1982 scsi_ulto2b(ileave, scsi_cmd->interleave);
1983
1984 cam_fill_csio(csio,
1985 retries,
1986 cbfcnp,
1987 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
1988 tag_action,
1989 data_ptr,
1990 dxfer_len,
1991 sense_len,
1992 sizeof(*scsi_cmd),
1993 timeout);
1994}
1995
1996#endif /* _KERNEL */