Add missing prototype (fixes warning).
[dragonfly.git] / sys / bus / cam / scsi / scsi_da.c
CommitLineData
984263bc
MD
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 $
1de703da 29 * $DragonFly: src/sys/bus/cam/scsi/scsi_da.c,v 1.2 2003/06/17 04:28:19 dillon Exp $
984263bc
MD
30 */
31
32#ifdef _KERNEL
33#include "opt_hw_wdog.h"
34#endif /* _KERNEL */
35
36#include <sys/param.h>
37
38#ifdef _KERNEL
39#include <sys/systm.h>
40#include <sys/kernel.h>
41#include <sys/buf.h>
42#include <sys/sysctl.h>
43#endif /* _KERNEL */
44
45#include <sys/devicestat.h>
46#include <sys/conf.h>
47#include <sys/disk.h>
48#include <sys/eventhandler.h>
49#include <sys/malloc.h>
50#include <sys/cons.h>
51
52#include <machine/md_var.h>
53
54#include <vm/vm.h>
55#include <vm/pmap.h>
56
57#ifndef _KERNEL
58#include <stdio.h>
59#include <string.h>
60#endif /* _KERNEL */
61
62#include <cam/cam.h>
63#include <cam/cam_ccb.h>
64#include <cam/cam_extend.h>
65#include <cam/cam_periph.h>
66#include <cam/cam_xpt_periph.h>
67
68#include <cam/scsi/scsi_message.h>
69
70#ifndef _KERNEL
71#include <cam/scsi/scsi_da.h>
72#endif /* !_KERNEL */
73
74#ifdef _KERNEL
75typedef enum {
76 DA_STATE_PROBE,
77 DA_STATE_NORMAL
78} da_state;
79
80typedef enum {
81 DA_FLAG_PACK_INVALID = 0x001,
82 DA_FLAG_NEW_PACK = 0x002,
83 DA_FLAG_PACK_LOCKED = 0x004,
84 DA_FLAG_PACK_REMOVABLE = 0x008,
85 DA_FLAG_TAGGED_QUEUING = 0x010,
86 DA_FLAG_NEED_OTAG = 0x020,
87 DA_FLAG_WENT_IDLE = 0x040,
88 DA_FLAG_RETRY_UA = 0x080,
89 DA_FLAG_OPEN = 0x100
90} da_flags;
91
92typedef enum {
93 DA_Q_NONE = 0x00,
94 DA_Q_NO_SYNC_CACHE = 0x01,
95 DA_Q_NO_6_BYTE = 0x02
96} da_quirks;
97
98typedef enum {
99 DA_CCB_PROBE = 0x01,
100 DA_CCB_BUFFER_IO = 0x02,
101 DA_CCB_WAITING = 0x03,
102 DA_CCB_DUMP = 0x04,
103 DA_CCB_TYPE_MASK = 0x0F,
104 DA_CCB_RETRY_UA = 0x10
105} da_ccb_state;
106
107/* Offsets into our private area for storing information */
108#define ccb_state ppriv_field0
109#define ccb_bp ppriv_ptr1
110
111struct disk_params {
112 u_int8_t heads;
113 u_int16_t cylinders;
114 u_int8_t secs_per_track;
115 u_int32_t secsize; /* Number of bytes/sector */
116 u_int32_t sectors; /* total number sectors */
117};
118
119struct da_softc {
120 struct buf_queue_head buf_queue;
121 struct devstat device_stats;
122 SLIST_ENTRY(da_softc) links;
123 LIST_HEAD(, ccb_hdr) pending_ccbs;
124 da_state state;
125 da_flags flags;
126 da_quirks quirks;
127 int minimum_cmd_size;
128 int ordered_tag_count;
129 struct disk_params params;
130 struct disk disk;
131 union ccb saved_ccb;
132};
133
134struct da_quirk_entry {
135 struct scsi_inquiry_pattern inq_pat;
136 da_quirks quirks;
137};
138
139static const char quantum[] = "QUANTUM";
140static const char microp[] = "MICROP";
141
142static struct da_quirk_entry da_quirk_table[] =
143{
144 {
145 /*
146 * Fujitsu M2513A MO drives.
147 * Tested devices: M2513A2 firmware versions 1200 & 1300.
148 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
149 * Reported by: W.Scholten <whs@xs4all.nl>
150 */
151 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
152 /*quirks*/ DA_Q_NO_SYNC_CACHE
153 },
154 {
155 /* See above. */
156 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
157 /*quirks*/ DA_Q_NO_SYNC_CACHE
158 },
159 {
160 /*
161 * This particular Fujitsu drive doesn't like the
162 * synchronize cache command.
163 * Reported by: Tom Jackson <toj@gorilla.net>
164 */
165 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
166 /*quirks*/ DA_Q_NO_SYNC_CACHE
167
168 },
169 {
170 /*
171 * This drive doesn't like the synchronize cache command
172 * either. Reported by: Matthew Jacob <mjacob@feral.com>
173 * in NetBSD PR kern/6027, August 24, 1998.
174 */
175 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
176 /*quirks*/ DA_Q_NO_SYNC_CACHE
177 },
178 {
179 /*
180 * This drive doesn't like the synchronize cache command
181 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
182 * (PR 8882).
183 */
184 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
185 /*quirks*/ DA_Q_NO_SYNC_CACHE
186 },
187 {
188 /*
189 * Doesn't like the synchronize cache command.
190 * Reported by: Blaz Zupan <blaz@gold.amis.net>
191 */
192 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
193 /*quirks*/ DA_Q_NO_SYNC_CACHE
194 },
195 {
196 /*
197 * Doesn't like the synchronize cache command.
198 */
199 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
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, "LPS525S", "*"},
207 /*quirks*/ DA_Q_NO_SYNC_CACHE
208 },
209 {
210 /*
211 * Doesn't work correctly with 6 byte reads/writes.
212 * Returns illegal request, and points to byte 9 of the
213 * 6-byte CDB.
214 * Reported by: Adam McDougall <bsdx@spawnet.com>
215 */
216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
217 /*quirks*/ DA_Q_NO_6_BYTE
218 },
219 {
220 /*
221 * See above.
222 */
223 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
224 /*quirks*/ DA_Q_NO_6_BYTE
225 },
226
227 /* Below a list of quirks for USB devices supported by umass. */
228 {
229 /*
230 * This USB floppy drive uses the UFI command set. This
231 * command set is a derivative of the ATAPI command set and
232 * does not support READ_6 commands only READ_10. It also does
233 * not support sync cache (0x35).
234 */
235 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"},
236 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
237 },
238 {
239 /* Another USB floppy */
240 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"},
241 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
242 },
243 {
244 /*
245 * Sony Memory Stick adapter MSAC-US1 and
246 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01).
247 * Make all sony MS* products use this quirk.
248 */
249 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"},
250 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
251 },
252 {
253 /*
254 * Sony Memory Stick adapter for the CLIE series
255 * of PalmOS PDA's
256 */
257 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"},
258 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
259 },
260 {
261 /*
262 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70)
263 */
264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
265 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
266 },
267 {
268 /*
269 * Maxtor 3000LE USB Drive
270 */
271 {T_DIRECT, SIP_MEDIA_FIXED, "MAXTOR*", "K040H2*", "*"},
272 /*quirks*/ DA_Q_NO_6_BYTE
273 },
274 {
275 /*
276 * LaCie USB drive, among others
277 */
278 {T_DIRECT, SIP_MEDIA_FIXED, "Maxtor*", "D080H4*", "*"},
279 /*quirks*/ DA_Q_NO_6_BYTE
280 },
281 {
282 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "MCF3064AP", "*"},
283 /*quirks*/ DA_Q_NO_6_BYTE
284 },
285 {
286 /*
287 * Microtech USB CameraMate
288 */
289 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*",
290 "Compact Flash*", "*"},
291 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
292 },
293 {
294 /*
295 * The vendor, product and version strings coming from the
296 * controller are null terminated instead of being padded with
297 * spaces. The trailing wildcard character '*' is required.
298 */
299 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"},
300 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
301 },
302 {
303 /*
304 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1)
305 */
306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"},
307 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
308 },
309 {
310 /*
311 * Olympus digital cameras (D-370)
312 */
313 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "D-*", "*"},
314 /*quirks*/ DA_Q_NO_6_BYTE
315 },
316 {
317 /*
318 * Olympus digital cameras (E-100RS, E-10).
319 */
320 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"},
321 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
322 },
323 {
324 /*
325 * KingByte Pen Drives
326 */
327 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"},
328 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
329 },
330 {
331 /*
332 * FujiFilm Camera
333 */
334 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT",
335 "USB-DRIVEUNIT", "*"},
336 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
337 },
338 {
339 /*
340 * Nikon Coolpix E775/E995 Cameras
341 */
342 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NIKON", "NIKON DSC E*", "*"},
343 /*quirks*/ DA_Q_NO_6_BYTE
344 },
345 {
346 /*
347 * Nikon Coolpix E885 Camera
348 */
349 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Nikon", "Digital Camera", "*"},
350 /*quirks*/ DA_Q_NO_6_BYTE
351 },
352 {
353 /*
354 * SimpleTech FlashLink UCF-100
355 */
356 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OEI-USB", "CompactFlash", "*"},
357 /*quirks*/ DA_Q_NO_6_BYTE
358 },
359 {
360 /*
361 * Minolta Dimage 2330
362 */
363 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DIMAGE 2330*", "*"},
364 /*quirks*/ DA_Q_NO_6_BYTE
365 },
366 {
367 /*
368 * Minolta Dimage E203
369 */
370 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"},
371 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
372 },
373 {
374 /*
375 * DIVA USB Mp3 Player.
376 * PR: kern/33638
377 */
378 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DIVA USB", "Media Reader","*"},
379 /*quirks*/ DA_Q_NO_6_BYTE
380 },
381 {
382 /*
383 * Daisy Technology PhotoClip USB Camera
384 */
385 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Digital", "World DMC","*"},
386 /*quirks*/ DA_Q_NO_6_BYTE
387 },
388 {
389 /*
390 * Apacer HandyDrive
391 * PR: kern/43627
392 */
393 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"},
394 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
395 },
396 {
397 /*
398 * Daisy Technology PhotoClip on Zoran chip
399 * PR: kern/43580
400 */
401 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"},
402 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
403 },
404 {
405 /*
406 * HP 315 Digital Camera
407 * PR: kern/41010
408 */
409 {T_DIRECT, SIP_MEDIA_REMOVABLE, "HP", "USB CAMERA", "*"},
410 /*quirks*/ DA_Q_NO_6_BYTE
411 },
412 {
413 /*
414 * Fujitsu-Siemens Memorybird pen drive
415 * PR: kern/34712
416 */
417 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Fujitsu", "Memorybird", "*"},
418 /*quirks*/ DA_Q_NO_6_BYTE
419 },
420 {
421 /*
422 * Sony USB Key-Storage
423 * PR: kern/46386
424 */
425 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"},
426 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
427 },
428 {
429 /*
430 * Lexar Media Jumpdrive
431 * PR: kern/47006
432 */
433 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LEXAR", "DIGITAL FILM", "*"},
434 /*quirks*/ DA_Q_NO_6_BYTE
435 },
436 {
437 /*
438 * Pentax USB Optio 230 camera
439 * PR: kern/46369
440 */
441 {T_DIRECT, SIP_MEDIA_REMOVABLE,
442 "PENTAX", "DIGITAL_CAMERA", "*"},
443 /*quirks*/ DA_Q_NO_6_BYTE
444 },
445 {
446 /*
447 * Casio QV-R3 USB camera (uses Pentax chip as above)
448 * PR: kern/46545
449 */
450 {T_DIRECT, SIP_MEDIA_REMOVABLE,
451 "CASIO", "DIGITAL_CAMERA", "*"},
452 /*quirks*/ DA_Q_NO_6_BYTE
453 },
454 {
455 /*
456 * M-Systems DiskOnKey USB flash key
457 * PR: kern/47793
458 */
459 {T_DIRECT, SIP_MEDIA_REMOVABLE, "M-Sys", "DiskOnKey", "*"},
460 /*quirks*/ DA_Q_NO_6_BYTE
461 },
462 {
463 /*
464 * SanDisk ImageMate (I, II, ...) compact flash
465 * PR: kern/47877
466 */
467 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk", "ImageMate*", "*"},
468 /*quirks*/ DA_Q_NO_6_BYTE
469 },
470 {
471 /*
472 * Feiya "slider" dual-slot flash reader. The vendor field
473 * is blank so this may match other devices.
474 * PR: kern/50020
475 */
476 {T_DIRECT, SIP_MEDIA_REMOVABLE, "", "USB CARD READER", "*"},
477 /*quirks*/ DA_Q_NO_6_BYTE
478 },
479 {
480 /*
481 * SmartDisk (Mitsumi) USB floppy drive
482 * PR: kern/50226
483 */
484 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"},
485 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE
486 },
487 {
488 /*
489 * OTi USB Flash Key
490 * PR: kern/51825
491 */
492 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OTi", "Flash Disk", "*"},
493 /*quirks*/ DA_Q_NO_6_BYTE
494 }
495};
496
497static d_open_t daopen;
498static d_close_t daclose;
499static d_strategy_t dastrategy;
500static d_ioctl_t daioctl;
501static d_dump_t dadump;
502static periph_init_t dainit;
503static void daasync(void *callback_arg, u_int32_t code,
504 struct cam_path *path, void *arg);
505static periph_ctor_t daregister;
506static periph_dtor_t dacleanup;
507static periph_start_t dastart;
508static periph_oninv_t daoninvalidate;
509static void dadone(struct cam_periph *periph,
510 union ccb *done_ccb);
511static int daerror(union ccb *ccb, u_int32_t cam_flags,
512 u_int32_t sense_flags);
513static void daprevent(struct cam_periph *periph, int action);
514static void dasetgeom(struct cam_periph *periph,
515 struct scsi_read_capacity_data * rdcap);
516static timeout_t dasendorderedtag;
517static void dashutdown(void *arg, int howto);
518
519#ifndef DA_DEFAULT_TIMEOUT
520#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
521#endif
522
523#ifndef DA_DEFAULT_RETRY
524#define DA_DEFAULT_RETRY 4
525#endif
526
527static int da_retry_count = DA_DEFAULT_RETRY;
528static int da_default_timeout = DA_DEFAULT_TIMEOUT;
529static int da_no_6_byte = 0;
530
531SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem");
532SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
533 "CAM Direct Access Disk driver");
534SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
535 &da_retry_count, 0, "Normal I/O retry count");
536SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
537 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
538SYSCTL_INT(_kern_cam_da, OID_AUTO, no_6_byte, CTLFLAG_RW,
539 &da_no_6_byte, 0, "No 6 bytes commands");
540
541/*
542 * DA_ORDEREDTAG_INTERVAL determines how often, relative
543 * to the default timeout, we check to see whether an ordered
544 * tagged transaction is appropriate to prevent simple tag
545 * starvation. Since we'd like to ensure that there is at least
546 * 1/2 of the timeout length left for a starved transaction to
547 * complete after we've sent an ordered tag, we must poll at least
548 * four times in every timeout period. This takes care of the worst
549 * case where a starved transaction starts during an interval that
550 * meets the requirement "don't send an ordered tag" test so it takes
551 * us two intervals to determine that a tag must be sent.
552 */
553#ifndef DA_ORDEREDTAG_INTERVAL
554#define DA_ORDEREDTAG_INTERVAL 4
555#endif
556
557static struct periph_driver dadriver =
558{
559 dainit, "da",
560 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
561};
562
563DATA_SET(periphdriver_set, dadriver);
564
565#define DA_CDEV_MAJOR 13
566#define DA_BDEV_MAJOR 4
567
568/* For 2.2-stable support */
569#ifndef D_DISK
570#define D_DISK 0
571#endif
572
573static struct cdevsw da_cdevsw = {
574 /* open */ daopen,
575 /* close */ daclose,
576 /* read */ physread,
577 /* write */ physwrite,
578 /* ioctl */ daioctl,
579 /* poll */ nopoll,
580 /* mmap */ nommap,
581 /* strategy */ dastrategy,
582 /* name */ "da",
583 /* maj */ DA_CDEV_MAJOR,
584 /* dump */ dadump,
585 /* psize */ nopsize,
586 /* flags */ D_DISK,
587 /* bmaj */ DA_BDEV_MAJOR
588};
589
590static struct cdevsw dadisk_cdevsw;
591
592static SLIST_HEAD(,da_softc) softc_list;
593static struct extend_array *daperiphs;
594
595static int
596daopen(dev_t dev, int flags, int fmt, struct proc *p)
597{
598 struct cam_periph *periph;
599 struct da_softc *softc;
600 struct disklabel *label;
601 int unit;
602 int part;
603 int error;
604 int s;
605
606 unit = dkunit(dev);
607 part = dkpart(dev);
608 periph = cam_extend_get(daperiphs, unit);
609 if (periph == NULL)
610 return (ENXIO);
611
612 softc = (struct da_softc *)periph->softc;
613
614 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
615 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev),
616 unit, part));
617
618 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
619 return (error); /* error code from tsleep */
620 }
621
622 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
623 return(ENXIO);
624 softc->flags |= DA_FLAG_OPEN;
625
626 s = splsoftcam();
627 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
628 /* Invalidate our pack information. */
629 disk_invalidate(&softc->disk);
630 softc->flags &= ~DA_FLAG_PACK_INVALID;
631 }
632 splx(s);
633
634 /* Do a read capacity */
635 {
636 struct scsi_read_capacity_data *rcap;
637 union ccb *ccb;
638
639 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
640 M_TEMP,
641 M_WAITOK);
642
643 ccb = cam_periph_getccb(periph, /*priority*/1);
644 scsi_read_capacity(&ccb->csio,
645 /*retries*/1,
646 /*cbfncp*/dadone,
647 MSG_SIMPLE_Q_TAG,
648 rcap,
649 SSD_FULL_SIZE,
650 /*timeout*/60000);
651 ccb->ccb_h.ccb_bp = NULL;
652
653 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
654 /*sense_flags*/SF_RETRY_UA |
655 SF_RETRY_SELTO,
656 &softc->device_stats);
657
658 xpt_release_ccb(ccb);
659
660 if (error == 0) {
661 dasetgeom(periph, rcap);
662 }
663
664 free(rcap, M_TEMP);
665 }
666
667 if (error == 0) {
668 struct ccb_getdev cgd;
669
670 /* Build label for whole disk. */
671 label = &softc->disk.d_label;
672 bzero(label, sizeof(*label));
673 label->d_type = DTYPE_SCSI;
674
675 /*
676 * Grab the inquiry data to get the vendor and product names.
677 * Put them in the typename and packname for the label.
678 */
679 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
680 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
681 xpt_action((union ccb *)&cgd);
682
683 strncpy(label->d_typename, cgd.inq_data.vendor,
684 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
685 strncpy(label->d_packname, cgd.inq_data.product,
686 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
687
688 label->d_secsize = softc->params.secsize;
689 label->d_nsectors = softc->params.secs_per_track;
690 label->d_ntracks = softc->params.heads;
691 label->d_ncylinders = softc->params.cylinders;
692 label->d_secpercyl = softc->params.heads
693 * softc->params.secs_per_track;
694 label->d_secperunit = softc->params.sectors;
695
696 if (((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)) {
697 daprevent(periph, PR_PREVENT);
698 }
699
700 /*
701 * Check to see whether or not the blocksize is set yet.
702 * If it isn't, set it and then clear the blocksize
703 * unavailable flag for the device statistics.
704 */
705 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){
706 softc->device_stats.block_size = softc->params.secsize;
707 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
708 }
709 }
710
711 if (error != 0) {
712 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
713 daprevent(periph, PR_ALLOW);
714 }
715 softc->flags &= ~DA_FLAG_OPEN;
716 cam_periph_release(periph);
717 }
718 cam_periph_unlock(periph);
719 return (error);
720}
721
722static int
723daclose(dev_t dev, int flag, int fmt, struct proc *p)
724{
725 struct cam_periph *periph;
726 struct da_softc *softc;
727 int unit;
728 int error;
729
730 unit = dkunit(dev);
731 periph = cam_extend_get(daperiphs, unit);
732 if (periph == NULL)
733 return (ENXIO);
734
735 softc = (struct da_softc *)periph->softc;
736
737 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) {
738 return (error); /* error code from tsleep */
739 }
740
741 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
742 union ccb *ccb;
743
744 ccb = cam_periph_getccb(periph, /*priority*/1);
745
746 scsi_synchronize_cache(&ccb->csio,
747 /*retries*/1,
748 /*cbfcnp*/dadone,
749 MSG_SIMPLE_Q_TAG,
750 /*begin_lba*/0,/* Cover the whole disk */
751 /*lb_count*/0,
752 SSD_FULL_SIZE,
753 5 * 60 * 1000);
754
755 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
756 /*sense_flags*/SF_RETRY_UA,
757 &softc->device_stats);
758
759 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
760 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
761 CAM_SCSI_STATUS_ERROR) {
762 int asc, ascq;
763 int sense_key, error_code;
764
765 scsi_extract_sense(&ccb->csio.sense_data,
766 &error_code,
767 &sense_key,
768 &asc, &ascq);
769 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
770 scsi_sense_print(&ccb->csio);
771 } else {
772 xpt_print_path(periph->path);
773 printf("Synchronize cache failed, status "
774 "== 0x%x, scsi status == 0x%x\n",
775 ccb->csio.ccb_h.status,
776 ccb->csio.scsi_status);
777 }
778 }
779
780 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
781 cam_release_devq(ccb->ccb_h.path,
782 /*relsim_flags*/0,
783 /*reduction*/0,
784 /*timeout*/0,
785 /*getcount_only*/0);
786
787 xpt_release_ccb(ccb);
788
789 }
790
791 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
792 daprevent(periph, PR_ALLOW);
793 /*
794 * If we've got removeable media, mark the blocksize as
795 * unavailable, since it could change when new media is
796 * inserted.
797 */
798 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
799 }
800
801 softc->flags &= ~DA_FLAG_OPEN;
802 cam_periph_unlock(periph);
803 cam_periph_release(periph);
804 return (0);
805}
806
807/*
808 * Actually translate the requested transfer into one the physical driver
809 * can understand. The transfer is described by a buf and will include
810 * only one physical transfer.
811 */
812static void
813dastrategy(struct buf *bp)
814{
815 struct cam_periph *periph;
816 struct da_softc *softc;
817 u_int unit;
818 u_int part;
819 int s;
820
821 unit = dkunit(bp->b_dev);
822 part = dkpart(bp->b_dev);
823 periph = cam_extend_get(daperiphs, unit);
824 if (periph == NULL) {
825 bp->b_error = ENXIO;
826 goto bad;
827 }
828 softc = (struct da_softc *)periph->softc;
829#if 0
830 /*
831 * check it's not too big a transfer for our adapter
832 */
833 scsi_minphys(bp,&sd_switch);
834#endif
835
836 /*
837 * Mask interrupts so that the pack cannot be invalidated until
838 * after we are in the queue. Otherwise, we might not properly
839 * clean up one of the buffers.
840 */
841 s = splbio();
842
843 /*
844 * If the device has been made invalid, error out
845 */
846 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
847 splx(s);
848 bp->b_error = ENXIO;
849 goto bad;
850 }
851
852 /*
853 * Place it in the queue of disk activities for this disk
854 */
855 bufqdisksort(&softc->buf_queue, bp);
856
857 splx(s);
858
859 /*
860 * Schedule ourselves for performing the work.
861 */
862 xpt_schedule(periph, /* XXX priority */1);
863
864 return;
865bad:
866 bp->b_flags |= B_ERROR;
867
868 /*
869 * Correctly set the buf to indicate a completed xfer
870 */
871 bp->b_resid = bp->b_bcount;
872 biodone(bp);
873 return;
874}
875
876/* For 2.2-stable support */
877#ifndef ENOIOCTL
878#define ENOIOCTL -1
879#endif
880
881static int
882daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
883{
884 struct cam_periph *periph;
885 struct da_softc *softc;
886 int unit;
887 int error;
888
889 unit = dkunit(dev);
890 periph = cam_extend_get(daperiphs, unit);
891 if (periph == NULL)
892 return (ENXIO);
893
894 softc = (struct da_softc *)periph->softc;
895
896 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n"));
897
898 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) {
899 return (error); /* error code from tsleep */
900 }
901
902 error = cam_periph_ioctl(periph, cmd, addr, daerror);
903
904 cam_periph_unlock(periph);
905
906 return (error);
907}
908
909static int
910dadump(dev_t dev)
911{
912 struct cam_periph *periph;
913 struct da_softc *softc;
914 u_int unit;
915 u_int part;
916 u_int secsize;
917 u_int num; /* number of sectors to write */
918 u_int blknum;
919 long blkcnt;
920 vm_offset_t addr;
921 struct ccb_scsiio csio;
922 int dumppages = MAXDUMPPGS;
923 int error;
924 int i;
925
926 /* toss any characters present prior to dump */
927 while (cncheckc() != -1)
928 ;
929
930 unit = dkunit(dev);
931 part = dkpart(dev);
932 periph = cam_extend_get(daperiphs, unit);
933 if (periph == NULL) {
934 return (ENXIO);
935 }
936 softc = (struct da_softc *)periph->softc;
937
938 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
939 return (ENXIO);
940
941 error = disk_dumpcheck(dev, &num, &blknum, &secsize);
942 if (error)
943 return (error);
944
945 addr = 0; /* starting address */
946 blkcnt = howmany(PAGE_SIZE, secsize);
947
948 while (num > 0) {
949 caddr_t va = NULL;
950
951 if ((num / blkcnt) < dumppages)
952 dumppages = num / blkcnt;
953
954 for (i = 0; i < dumppages; ++i) {
955 vm_offset_t a = addr + (i * PAGE_SIZE);
956 if (is_physical_memory(a))
957 va = pmap_kenter_temporary(trunc_page(a), i);
958 else
959 va = pmap_kenter_temporary(trunc_page(0), i);
960 }
961
962 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
963 csio.ccb_h.ccb_state = DA_CCB_DUMP;
964 scsi_read_write(&csio,
965 /*retries*/1,
966 dadone,
967 MSG_ORDERED_Q_TAG,
968 /*read*/FALSE,
969 /*byte2*/0,
970 /*minimum_cmd_size*/ softc->minimum_cmd_size,
971 blknum,
972 blkcnt * dumppages,
973 /*data_ptr*/(u_int8_t *) va,
974 /*dxfer_len*/blkcnt * secsize * dumppages,
975 /*sense_len*/SSD_FULL_SIZE,
976 DA_DEFAULT_TIMEOUT * 1000);
977 xpt_polled_action((union ccb *)&csio);
978
979 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
980 printf("Aborting dump due to I/O error.\n");
981 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
982 CAM_SCSI_STATUS_ERROR)
983 scsi_sense_print(&csio);
984 else
985 printf("status == 0x%x, scsi status == 0x%x\n",
986 csio.ccb_h.status, csio.scsi_status);
987 return(EIO);
988 }
989
990 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0)
991 return (EINTR);
992
993 /* update block count */
994 num -= blkcnt * dumppages;
995 blknum += blkcnt * dumppages;
996 addr += PAGE_SIZE * dumppages;
997 }
998
999 /*
1000 * Sync the disk cache contents to the physical media.
1001 */
1002 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1003
1004 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
1005 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1006 scsi_synchronize_cache(&csio,
1007 /*retries*/1,
1008 /*cbfcnp*/dadone,
1009 MSG_SIMPLE_Q_TAG,
1010 /*begin_lba*/0,/* Cover the whole disk */
1011 /*lb_count*/0,
1012 SSD_FULL_SIZE,
1013 5 * 60 * 1000);
1014 xpt_polled_action((union ccb *)&csio);
1015
1016 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1017 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1018 CAM_SCSI_STATUS_ERROR) {
1019 int asc, ascq;
1020 int sense_key, error_code;
1021
1022 scsi_extract_sense(&csio.sense_data,
1023 &error_code,
1024 &sense_key,
1025 &asc, &ascq);
1026 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1027 scsi_sense_print(&csio);
1028 } else {
1029 xpt_print_path(periph->path);
1030 printf("Synchronize cache failed, status "
1031 "== 0x%x, scsi status == 0x%x\n",
1032 csio.ccb_h.status, csio.scsi_status);
1033 }
1034 }
1035 }
1036 return (0);
1037}
1038
1039static void
1040dainit(void)
1041{
1042 cam_status status;
1043 struct cam_path *path;
1044
1045 /*
1046 * Create our extend array for storing the devices we attach to.
1047 */
1048 daperiphs = cam_extend_new();
1049 SLIST_INIT(&softc_list);
1050 if (daperiphs == NULL) {
1051 printf("da: Failed to alloc extend array!\n");
1052 return;
1053 }
1054
1055 /*
1056 * Install a global async callback. This callback will
1057 * receive async callbacks like "new device found".
1058 */
1059 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
1060 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
1061
1062 if (status == CAM_REQ_CMP) {
1063 struct ccb_setasync csa;
1064
1065 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
1066 csa.ccb_h.func_code = XPT_SASYNC_CB;
1067 csa.event_enable = AC_FOUND_DEVICE;
1068 csa.callback = daasync;
1069 csa.callback_arg = NULL;
1070 xpt_action((union ccb *)&csa);
1071 status = csa.ccb_h.status;
1072 xpt_free_path(path);
1073 }
1074
1075 if (status != CAM_REQ_CMP) {
1076 printf("da: Failed to attach master async callback "
1077 "due to status 0x%x!\n", status);
1078 } else {
1079
1080 /*
1081 * Schedule a periodic event to occasionally send an
1082 * ordered tag to a device.
1083 */
1084 timeout(dasendorderedtag, NULL,
1085 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
1086
1087 /* Register our shutdown event handler */
1088 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1089 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1090 printf("dainit: shutdown event registration failed!\n");
1091 }
1092}
1093
1094static void
1095daoninvalidate(struct cam_periph *periph)
1096{
1097 int s;
1098 struct da_softc *softc;
1099 struct buf *q_bp;
1100 struct ccb_setasync csa;
1101
1102 softc = (struct da_softc *)periph->softc;
1103
1104 /*
1105 * De-register any async callbacks.
1106 */
1107 xpt_setup_ccb(&csa.ccb_h, periph->path,
1108 /* priority */ 5);
1109 csa.ccb_h.func_code = XPT_SASYNC_CB;
1110 csa.event_enable = 0;
1111 csa.callback = daasync;
1112 csa.callback_arg = periph;
1113 xpt_action((union ccb *)&csa);
1114
1115 softc->flags |= DA_FLAG_PACK_INVALID;
1116
1117 /*
1118 * Although the oninvalidate() routines are always called at
1119 * splsoftcam, we need to be at splbio() here to keep the buffer
1120 * queue from being modified while we traverse it.
1121 */
1122 s = splbio();
1123
1124 /*
1125 * Return all queued I/O with ENXIO.
1126 * XXX Handle any transactions queued to the card
1127 * with XPT_ABORT_CCB.
1128 */
1129 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
1130 bufq_remove(&softc->buf_queue, q_bp);
1131 q_bp->b_resid = q_bp->b_bcount;
1132 q_bp->b_error = ENXIO;
1133 q_bp->b_flags |= B_ERROR;
1134 biodone(q_bp);
1135 }
1136 splx(s);
1137
1138 SLIST_REMOVE(&softc_list, softc, da_softc, links);
1139
1140 xpt_print_path(periph->path);
1141 printf("lost device\n");
1142}
1143
1144static void
1145dacleanup(struct cam_periph *periph)
1146{
1147 struct da_softc *softc;
1148
1149 softc = (struct da_softc *)periph->softc;
1150
1151 devstat_remove_entry(&softc->device_stats);
1152 cam_extend_release(daperiphs, periph->unit_number);
1153 xpt_print_path(periph->path);
1154 printf("removing device entry\n");
1155 if (softc->disk.d_dev) {
1156 disk_destroy(softc->disk.d_dev);
1157 }
1158 free(softc, M_DEVBUF);
1159}
1160
1161static void
1162daasync(void *callback_arg, u_int32_t code,
1163 struct cam_path *path, void *arg)
1164{
1165 struct cam_periph *periph;
1166
1167 periph = (struct cam_periph *)callback_arg;
1168 switch (code) {
1169 case AC_FOUND_DEVICE:
1170 {
1171 struct ccb_getdev *cgd;
1172 cam_status status;
1173
1174 cgd = (struct ccb_getdev *)arg;
1175
1176 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1177 && SID_TYPE(&cgd->inq_data) != T_RBC
1178 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1179 break;
1180
1181 /*
1182 * Allocate a peripheral instance for
1183 * this device and start the probe
1184 * process.
1185 */
1186 status = cam_periph_alloc(daregister, daoninvalidate,
1187 dacleanup, dastart,
1188 "da", CAM_PERIPH_BIO,
1189 cgd->ccb_h.path, daasync,
1190 AC_FOUND_DEVICE, cgd);
1191
1192 if (status != CAM_REQ_CMP
1193 && status != CAM_REQ_INPROG)
1194 printf("daasync: Unable to attach to new device "
1195 "due to status 0x%x\n", status);
1196 break;
1197 }
1198 case AC_SENT_BDR:
1199 case AC_BUS_RESET:
1200 {
1201 struct da_softc *softc;
1202 struct ccb_hdr *ccbh;
1203 int s;
1204
1205 softc = (struct da_softc *)periph->softc;
1206 s = splsoftcam();
1207 /*
1208 * Don't fail on the expected unit attention
1209 * that will occur.
1210 */
1211 softc->flags |= DA_FLAG_RETRY_UA;
1212 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
1213 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
1214 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1215 splx(s);
1216 /* FALLTHROUGH*/
1217 }
1218 default:
1219 cam_periph_async(periph, code, path, arg);
1220 break;
1221 }
1222}
1223
1224static cam_status
1225daregister(struct cam_periph *periph, void *arg)
1226{
1227 int s;
1228 struct da_softc *softc;
1229 struct ccb_setasync csa;
1230 struct ccb_getdev *cgd;
1231 caddr_t match;
1232
1233 cgd = (struct ccb_getdev *)arg;
1234 if (periph == NULL) {
1235 printf("daregister: periph was NULL!!\n");
1236 return(CAM_REQ_CMP_ERR);
1237 }
1238
1239 if (cgd == NULL) {
1240 printf("daregister: no getdev CCB, can't register device\n");
1241 return(CAM_REQ_CMP_ERR);
1242 }
1243
1244 softc = (struct da_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
1245
1246 if (softc == NULL) {
1247 printf("daregister: Unable to probe new device. "
1248 "Unable to allocate softc\n");
1249 return(CAM_REQ_CMP_ERR);
1250 }
1251
1252 bzero(softc, sizeof(*softc));
1253 LIST_INIT(&softc->pending_ccbs);
1254 softc->state = DA_STATE_PROBE;
1255 bufq_init(&softc->buf_queue);
1256 if (SID_IS_REMOVABLE(&cgd->inq_data))
1257 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1258 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1259 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1260
1261 periph->softc = softc;
1262
1263 cam_extend_set(daperiphs, periph->unit_number, periph);
1264
1265 /*
1266 * See if this device has any quirks.
1267 */
1268 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1269 (caddr_t)da_quirk_table,
1270 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1271 sizeof(*da_quirk_table), scsi_inquiry_match);
1272
1273 if (match != NULL)
1274 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1275 else
1276 softc->quirks = DA_Q_NONE;
1277
1278 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1279 softc->minimum_cmd_size = 10;
1280 else
1281 softc->minimum_cmd_size = 6;
1282
1283 /*
1284 * Block our timeout handler while we
1285 * add this softc to the dev list.
1286 */
1287 s = splsoftclock();
1288 SLIST_INSERT_HEAD(&softc_list, softc, links);
1289 splx(s);
1290
1291 /*
1292 * The DA driver supports a blocksize, but
1293 * we don't know the blocksize until we do
1294 * a read capacity. So, set a flag to
1295 * indicate that the blocksize is
1296 * unavailable right now. We'll clear the
1297 * flag as soon as we've done a read capacity.
1298 */
1299 devstat_add_entry(&softc->device_stats, "da",
1300 periph->unit_number, 0,
1301 DEVSTAT_BS_UNAVAILABLE,
1302 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
1303 DEVSTAT_PRIORITY_DISK);
1304
1305 /*
1306 * Register this media as a disk
1307 */
1308 disk_create(periph->unit_number, &softc->disk, 0,
1309 &da_cdevsw, &dadisk_cdevsw);
1310
1311 /*
1312 * Add async callbacks for bus reset and
1313 * bus device reset calls. I don't bother
1314 * checking if this fails as, in most cases,
1315 * the system will function just fine without
1316 * them and the only alternative would be to
1317 * not attach the device on failure.
1318 */
1319 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
1320 csa.ccb_h.func_code = XPT_SASYNC_CB;
1321 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
1322 csa.callback = daasync;
1323 csa.callback_arg = periph;
1324 xpt_action((union ccb *)&csa);
1325 /*
1326 * Lock this peripheral until we are setup.
1327 * This first call can't block
1328 */
1329 (void)cam_periph_lock(periph, PRIBIO);
1330 xpt_schedule(periph, /*priority*/5);
1331
1332 return(CAM_REQ_CMP);
1333}
1334
1335static void
1336dastart(struct cam_periph *periph, union ccb *start_ccb)
1337{
1338 struct da_softc *softc;
1339
1340 softc = (struct da_softc *)periph->softc;
1341
1342
1343 switch (softc->state) {
1344 case DA_STATE_NORMAL:
1345 {
1346 /* Pull a buffer from the queue and get going on it */
1347 struct buf *bp;
1348 int s;
1349
1350 /*
1351 * See if there is a buf with work for us to do..
1352 */
1353 s = splbio();
1354 bp = bufq_first(&softc->buf_queue);
1355 if (periph->immediate_priority <= periph->pinfo.priority) {
1356 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1357 ("queuing for immediate ccb\n"));
1358 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1359 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1360 periph_links.sle);
1361 periph->immediate_priority = CAM_PRIORITY_NONE;
1362 splx(s);
1363 wakeup(&periph->ccb_list);
1364 } else if (bp == NULL) {
1365 splx(s);
1366 xpt_release_ccb(start_ccb);
1367 } else {
1368 int oldspl;
1369 u_int8_t tag_code;
1370
1371 bufq_remove(&softc->buf_queue, bp);
1372
1373 devstat_start_transaction(&softc->device_stats);
1374
1375 if ((bp->b_flags & B_ORDERED) != 0
1376 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1377 softc->flags &= ~DA_FLAG_NEED_OTAG;
1378 softc->ordered_tag_count++;
1379 tag_code = MSG_ORDERED_Q_TAG;
1380 } else {
1381 tag_code = MSG_SIMPLE_Q_TAG;
1382 }
1383 if (da_no_6_byte && softc->minimum_cmd_size == 6)
1384 softc->minimum_cmd_size = 10;
1385 scsi_read_write(&start_ccb->csio,
1386 /*retries*/da_retry_count,
1387 dadone,
1388 tag_code,
1389 bp->b_flags & B_READ,
1390 /*byte2*/0,
1391 softc->minimum_cmd_size,
1392 bp->b_pblkno,
1393 bp->b_bcount / softc->params.secsize,
1394 bp->b_data,
1395 bp->b_bcount,
1396 /*sense_len*/SSD_FULL_SIZE,
1397 da_default_timeout * 1000);
1398 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1399
1400 /*
1401 * Block out any asyncronous callbacks
1402 * while we touch the pending ccb list.
1403 */
1404 oldspl = splcam();
1405 LIST_INSERT_HEAD(&softc->pending_ccbs,
1406 &start_ccb->ccb_h, periph_links.le);
1407 splx(oldspl);
1408
1409 /* We expect a unit attention from this device */
1410 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1411 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1412 softc->flags &= ~DA_FLAG_RETRY_UA;
1413 }
1414
1415 start_ccb->ccb_h.ccb_bp = bp;
1416 bp = bufq_first(&softc->buf_queue);
1417 splx(s);
1418
1419 xpt_action(start_ccb);
1420 }
1421
1422 if (bp != NULL) {
1423 /* Have more work to do, so ensure we stay scheduled */
1424 xpt_schedule(periph, /* XXX priority */1);
1425 }
1426 break;
1427 }
1428 case DA_STATE_PROBE:
1429 {
1430 struct ccb_scsiio *csio;
1431 struct scsi_read_capacity_data *rcap;
1432
1433 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
1434 M_TEMP,
1435 M_NOWAIT);
1436 if (rcap == NULL) {
1437 printf("dastart: Couldn't malloc read_capacity data\n");
1438 /* da_free_periph??? */
1439 break;
1440 }
1441 csio = &start_ccb->csio;
1442 scsi_read_capacity(csio,
1443 /*retries*/4,
1444 dadone,
1445 MSG_SIMPLE_Q_TAG,
1446 rcap,
1447 SSD_FULL_SIZE,
1448 /*timeout*/5000);
1449 start_ccb->ccb_h.ccb_bp = NULL;
1450 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1451 xpt_action(start_ccb);
1452 break;
1453 }
1454 }
1455}
1456
1457static int
1458cmd6workaround(union ccb *ccb)
1459{
1460 struct scsi_rw_6 cmd6;
1461 struct scsi_rw_10 *cmd10;
1462 struct da_softc *softc;
1463 u_int8_t *cdb;
1464 int frozen;
1465
1466 cdb = ccb->csio.cdb_io.cdb_bytes;
1467
1468 /* Translation only possible if CDB is an array and cmd is R/W6 */
1469 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1470 (*cdb != READ_6 && *cdb != WRITE_6))
1471 return 0;
1472
1473 xpt_print_path(ccb->ccb_h.path);
1474 printf("READ(6)/WRITE(6) not supported, "
1475 "increasing minimum_cmd_size to 10.\n");
1476 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1477 softc->minimum_cmd_size = 10;
1478
1479 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1480 cmd10 = (struct scsi_rw_10 *)cdb;
1481 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1482 cmd10->byte2 = 0;
1483 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1484 cmd10->reserved = 0;
1485 scsi_ulto2b(cmd6.length, cmd10->length);
1486 cmd10->control = cmd6.control;
1487 ccb->csio.cdb_len = sizeof(*cmd10);
1488
1489 /* Requeue request, unfreezing queue if necessary */
1490 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1491 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1492 xpt_action(ccb);
1493 if (frozen) {
1494 cam_release_devq(ccb->ccb_h.path,
1495 /*relsim_flags*/0,
1496 /*reduction*/0,
1497 /*timeout*/0,
1498 /*getcount_only*/0);
1499 }
1500 return (ERESTART);
1501}
1502
1503static void
1504dadone(struct cam_periph *periph, union ccb *done_ccb)
1505{
1506 struct da_softc *softc;
1507 struct ccb_scsiio *csio;
1508
1509 softc = (struct da_softc *)periph->softc;
1510 csio = &done_ccb->csio;
1511 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1512 case DA_CCB_BUFFER_IO:
1513 {
1514 struct buf *bp;
1515 int oldspl;
1516
1517 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
1518 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1519 int error;
1520 int s;
1521 int sf;
1522
1523 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1524 sf = SF_RETRY_UA;
1525 else
1526 sf = 0;
1527
1528 /* Retry selection timeouts */
1529 sf |= SF_RETRY_SELTO;
1530
1531 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) {
1532 /*
1533 * A retry was scheuled, so
1534 * just return.
1535 */
1536 return;
1537 }
1538 if (error != 0) {
1539 struct buf *q_bp;
1540
1541 s = splbio();
1542
1543 if (error == ENXIO) {
1544 /*
1545 * Catastrophic error. Mark our pack as
1546 * invalid.
1547 */
1548 /* XXX See if this is really a media
1549 * change first.
1550 */
1551 xpt_print_path(periph->path);
1552 printf("Invalidating pack\n");
1553 softc->flags |= DA_FLAG_PACK_INVALID;
1554 }
1555
1556 /*
1557 * return all queued I/O with EIO, so that
1558 * the client can retry these I/Os in the
1559 * proper order should it attempt to recover.
1560 */
1561 while ((q_bp = bufq_first(&softc->buf_queue))
1562 != NULL) {
1563 bufq_remove(&softc->buf_queue, q_bp);
1564 q_bp->b_resid = q_bp->b_bcount;
1565 q_bp->b_error = EIO;
1566 q_bp->b_flags |= B_ERROR;
1567 biodone(q_bp);
1568 }
1569 splx(s);
1570 bp->b_error = error;
1571 bp->b_resid = bp->b_bcount;
1572 bp->b_flags |= B_ERROR;
1573 } else {
1574 bp->b_resid = csio->resid;
1575 bp->b_error = 0;
1576 if (bp->b_resid != 0) {
1577 /* Short transfer ??? */
1578#if 0
1579 if (cmd6workaround(done_ccb)
1580 == ERESTART)
1581 return;
1582#endif
1583 bp->b_flags |= B_ERROR;
1584 }
1585 }
1586 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1587 cam_release_devq(done_ccb->ccb_h.path,
1588 /*relsim_flags*/0,
1589 /*reduction*/0,
1590 /*timeout*/0,
1591 /*getcount_only*/0);
1592 } else {
1593 bp->b_resid = csio->resid;
1594 if (csio->resid > 0) {
1595 /* Short transfer ??? */
1596#if 0 /* XXX most of the broken umass devices need this ad-hoc work around */
1597 if (cmd6workaround(done_ccb) == ERESTART)
1598 return;
1599#endif
1600 bp->b_flags |= B_ERROR;
1601 }
1602 }
1603
1604 /*
1605 * Block out any asyncronous callbacks
1606 * while we touch the pending ccb list.
1607 */
1608 oldspl = splcam();
1609 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1610 splx(oldspl);
1611
1612 if (softc->device_stats.busy_count == 0)
1613 softc->flags |= DA_FLAG_WENT_IDLE;
1614
1615 devstat_end_transaction_buf(&softc->device_stats, bp);
1616 biodone(bp);
1617 break;
1618 }
1619 case DA_CCB_PROBE:
1620 {
1621 struct scsi_read_capacity_data *rdcap;
1622 char announce_buf[80];
1623
1624 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1625
1626 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1627 struct disk_params *dp;
1628
1629 dasetgeom(periph, rdcap);
1630 dp = &softc->params;
1631 snprintf(announce_buf, sizeof(announce_buf),
1632 "%luMB (%u %u byte sectors: %dH %dS/T %dC)",
1633 (unsigned long) (((u_int64_t)dp->secsize *
1634 dp->sectors) / (1024*1024)), dp->sectors,
1635 dp->secsize, dp->heads, dp->secs_per_track,
1636 dp->cylinders);
1637 } else {
1638 int error;
1639
1640 announce_buf[0] = '\0';
1641
1642 /*
1643 * Retry any UNIT ATTENTION type errors. They
1644 * are expected at boot.
1645 */
1646 error = daerror(done_ccb, 0, SF_RETRY_UA |
1647 SF_RETRY_SELTO | SF_NO_PRINT);
1648 if (error == ERESTART) {
1649 /*
1650 * A retry was scheuled, so
1651 * just return.
1652 */
1653 return;
1654 } else if (error != 0) {
1655 struct scsi_sense_data *sense;
1656 int asc, ascq;
1657 int sense_key, error_code;
1658 int have_sense;
1659 cam_status status;
1660 struct ccb_getdev cgd;
1661
1662 /* Don't wedge this device's queue */
1663 cam_release_devq(done_ccb->ccb_h.path,
1664 /*relsim_flags*/0,
1665 /*reduction*/0,
1666 /*timeout*/0,
1667 /*getcount_only*/0);
1668
1669 status = done_ccb->ccb_h.status;
1670
1671 xpt_setup_ccb(&cgd.ccb_h,
1672 done_ccb->ccb_h.path,
1673 /* priority */ 1);
1674 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1675 xpt_action((union ccb *)&cgd);
1676
1677 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1678 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1679 || ((status & CAM_AUTOSNS_VALID) == 0))
1680 have_sense = FALSE;
1681 else
1682 have_sense = TRUE;
1683
1684 if (have_sense) {
1685 sense = &csio->sense_data;
1686 scsi_extract_sense(sense, &error_code,
1687 &sense_key,
1688 &asc, &ascq);
1689 }
1690 /*
1691 * Attach to anything that claims to be a
1692 * direct access or optical disk device,
1693 * as long as it doesn't return a "Logical
1694 * unit not supported" (0x25) error.
1695 */
1696 if ((have_sense) && (asc != 0x25)
1697 && (error_code == SSD_CURRENT_ERROR))
1698 snprintf(announce_buf,
1699 sizeof(announce_buf),
1700 "Attempt to query device "
1701 "size failed: %s, %s",
1702 scsi_sense_key_text[sense_key],
1703 scsi_sense_desc(asc,ascq,
1704 &cgd.inq_data));
1705 else {
1706 if (have_sense)
1707 scsi_sense_print(
1708 &done_ccb->csio);
1709 else {
1710 xpt_print_path(periph->path);
1711 printf("got CAM status %#x\n",
1712 done_ccb->ccb_h.status);
1713 }
1714
1715 xpt_print_path(periph->path);
1716 printf("fatal error, failed"
1717 " to attach to device\n");
1718
1719 /*
1720 * Free up resources.
1721 */
1722 cam_periph_invalidate(periph);
1723 }
1724 }
1725 }
1726 free(rdcap, M_TEMP);
1727 if (announce_buf[0] != '\0')
1728 xpt_announce_periph(periph, announce_buf);
1729 softc->state = DA_STATE_NORMAL;
1730 /*
1731 * Since our peripheral may be invalidated by an error
1732 * above or an external event, we must release our CCB
1733 * before releasing the probe lock on the peripheral.
1734 * The peripheral will only go away once the last lock
1735 * is removed, and we need it around for the CCB release
1736 * operation.
1737 */
1738 xpt_release_ccb(done_ccb);
1739 cam_periph_unlock(periph);
1740 return;
1741 }
1742 case DA_CCB_WAITING:
1743 {
1744 /* Caller will release the CCB */
1745 wakeup(&done_ccb->ccb_h.cbfcnp);
1746 return;
1747 }
1748 case DA_CCB_DUMP:
1749 /* No-op. We're polling */
1750 return;
1751 default:
1752 break;
1753 }
1754 xpt_release_ccb(done_ccb);
1755}
1756
1757static int
1758daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1759{
1760 struct da_softc *softc;
1761 struct cam_periph *periph;
1762 int error, sense_key, error_code, asc, ascq;
1763
1764 periph = xpt_path_periph(ccb->ccb_h.path);
1765 softc = (struct da_softc *)periph->softc;
1766
1767 /*
1768 * Automatically detect devices that do not support
1769 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1770 */
1771 error = 0;
1772 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR
1773 && ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) {
1774 scsi_extract_sense(&ccb->csio.sense_data,
1775 &error_code, &sense_key, &asc, &ascq);
1776 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1777 error = cmd6workaround(ccb);
1778 }
1779 if (error == ERESTART)
1780 return (ERESTART);
1781
1782 /*
1783 * XXX
1784 * Until we have a better way of doing pack validation,
1785 * don't treat UAs as errors.
1786 */
1787 sense_flags |= SF_RETRY_UA;
1788 return(cam_periph_error(ccb, cam_flags, sense_flags,
1789 &softc->saved_ccb));
1790}
1791
1792static void
1793daprevent(struct cam_periph *periph, int action)
1794{
1795 struct da_softc *softc;
1796 union ccb *ccb;
1797 int error;
1798
1799 softc = (struct da_softc *)periph->softc;
1800
1801 if (((action == PR_ALLOW)
1802 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1803 || ((action == PR_PREVENT)
1804 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1805 return;
1806 }
1807
1808 ccb = cam_periph_getccb(periph, /*priority*/1);
1809
1810 scsi_prevent(&ccb->csio,
1811 /*retries*/1,
1812 /*cbcfp*/dadone,
1813 MSG_SIMPLE_Q_TAG,
1814 action,
1815 SSD_FULL_SIZE,
1816 5000);
1817
1818 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
1819 /*sense_flags*/0, &softc->device_stats);
1820
1821 if (error == 0) {
1822 if (action == PR_ALLOW)
1823 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1824 else
1825 softc->flags |= DA_FLAG_PACK_LOCKED;
1826 }
1827
1828 xpt_release_ccb(ccb);
1829}
1830
1831static void
1832dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap)
1833{
1834 struct ccb_calc_geometry ccg;
1835 struct da_softc *softc;
1836 struct disk_params *dp;
1837
1838 softc = (struct da_softc *)periph->softc;
1839
1840 dp = &softc->params;
1841 dp->secsize = scsi_4btoul(rdcap->length);
1842 dp->sectors = scsi_4btoul(rdcap->addr) + 1;
1843 /*
1844 * Have the controller provide us with a geometry
1845 * for this disk. The only time the geometry
1846 * matters is when we boot and the controller
1847 * is the only one knowledgeable enough to come
1848 * up with something that will make this a bootable
1849 * device.
1850 */
1851 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1852 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1853 ccg.block_size = dp->secsize;
1854 ccg.volume_size = dp->sectors;
1855 ccg.heads = 0;
1856 ccg.secs_per_track = 0;
1857 ccg.cylinders = 0;
1858 xpt_action((union ccb*)&ccg);
1859 dp->heads = ccg.heads;
1860 dp->secs_per_track = ccg.secs_per_track;
1861 dp->cylinders = ccg.cylinders;
1862}
1863
1864static void
1865dasendorderedtag(void *arg)
1866{
1867 struct da_softc *softc;
1868 int s;
1869
1870 for (softc = SLIST_FIRST(&softc_list);
1871 softc != NULL;
1872 softc = SLIST_NEXT(softc, links)) {
1873 s = splsoftcam();
1874 if ((softc->ordered_tag_count == 0)
1875 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
1876 softc->flags |= DA_FLAG_NEED_OTAG;
1877 }
1878 if (softc->device_stats.busy_count > 0)
1879 softc->flags &= ~DA_FLAG_WENT_IDLE;
1880
1881 softc->ordered_tag_count = 0;
1882 splx(s);
1883 }
1884 /* Queue us up again */
1885 timeout(dasendorderedtag, NULL,
1886 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
1887}
1888
1889/*
1890 * Step through all DA peripheral drivers, and if the device is still open,
1891 * sync the disk cache to physical media.
1892 */
1893static void
1894dashutdown(void * arg, int howto)
1895{
1896 struct cam_periph *periph;
1897 struct da_softc *softc;
1898
1899 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL;
1900 periph = TAILQ_NEXT(periph, unit_links)) {
1901 union ccb ccb;
1902 softc = (struct da_softc *)periph->softc;
1903
1904 /*
1905 * We only sync the cache if the drive is still open, and
1906 * if the drive is capable of it..
1907 */
1908 if (((softc->flags & DA_FLAG_OPEN) == 0)
1909 || (softc->quirks & DA_Q_NO_SYNC_CACHE))
1910 continue;
1911
1912 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
1913
1914 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
1915 scsi_synchronize_cache(&ccb.csio,
1916 /*retries*/1,
1917 /*cbfcnp*/dadone,
1918 MSG_SIMPLE_Q_TAG,
1919 /*begin_lba*/0, /* whole disk */
1920 /*lb_count*/0,
1921 SSD_FULL_SIZE,
1922 5 * 60 * 1000);
1923
1924 xpt_polled_action(&ccb);
1925
1926 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1927 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
1928 CAM_SCSI_STATUS_ERROR)
1929 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
1930 int error_code, sense_key, asc, ascq;
1931
1932 scsi_extract_sense(&ccb.csio.sense_data,
1933 &error_code, &sense_key,
1934 &asc, &ascq);
1935
1936 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1937 scsi_sense_print(&ccb.csio);
1938 } else {
1939 xpt_print_path(periph->path);
1940 printf("Synchronize cache failed, status "
1941 "== 0x%x, scsi status == 0x%x\n",
1942 ccb.ccb_h.status, ccb.csio.scsi_status);
1943 }
1944 }
1945
1946 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1947 cam_release_devq(ccb.ccb_h.path,
1948 /*relsim_flags*/0,
1949 /*reduction*/0,
1950 /*timeout*/0,
1951 /*getcount_only*/0);
1952
1953 }
1954}
1955
1956#else /* !_KERNEL */
1957
1958/*
1959 * XXX This is only left out of the kernel build to silence warnings. If,
1960 * for some reason this function is used in the kernel, the ifdefs should
1961 * be moved so it is included both in the kernel and userland.
1962 */
1963void
1964scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
1965 void (*cbfcnp)(struct cam_periph *, union ccb *),
1966 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
1967 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
1968 u_int32_t timeout)
1969{
1970 struct scsi_format_unit *scsi_cmd;
1971
1972 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
1973 scsi_cmd->opcode = FORMAT_UNIT;
1974 scsi_cmd->byte2 = byte2;
1975 scsi_ulto2b(ileave, scsi_cmd->interleave);
1976
1977 cam_fill_csio(csio,
1978 retries,
1979 cbfcnp,
1980 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
1981 tag_action,
1982 data_ptr,
1983 dxfer_len,
1984 sense_len,
1985 sizeof(*scsi_cmd),
1986 timeout);
1987}
1988
1989#endif /* _KERNEL */