Style(9) cleanup to src/sys/vfs, stage 20/21: umapfs.
[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 *
62ade751 28 * $FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.42.2.46 2003/10/21 22:18:19 thomas Exp $
455fcd7e 29 * $DragonFly: src/sys/bus/cam/scsi/scsi_da.c,v 1.16 2004/05/13 23:49:11 dillon 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>
62ade751 44#include <sys/taskqueue.h>
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45#endif /* _KERNEL */
46
47#include <sys/devicestat.h>
48#include <sys/conf.h>
49#include <sys/disk.h>
50#include <sys/eventhandler.h>
05220613 51#ifdef _KERNEL
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52#include <sys/malloc.h>
53#include <sys/cons.h>
3020e3be 54#include <sys/proc.h>
05220613 55#endif
3020e3be 56#include <sys/buf2.h>
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57
58#include <machine/md_var.h>
59
05220613 60#ifdef _KERNEL
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61#include <vm/vm.h>
62#include <vm/pmap.h>
05220613 63#endif
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64
65#ifndef _KERNEL
66#include <stdio.h>
67#include <string.h>
68#endif /* _KERNEL */
69
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70#include "../cam.h"
71#include "../cam_ccb.h"
72#include "../cam_extend.h"
73#include "../cam_periph.h"
74#include "../cam_xpt_periph.h"
984263bc 75
1f2de5d4 76#include "scsi_message.h"
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77
78#ifndef _KERNEL
1f2de5d4 79#include "scsi_da.h"
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80#endif /* !_KERNEL */
81
82#ifdef _KERNEL
83typedef enum {
84 DA_STATE_PROBE,
85 DA_STATE_NORMAL
86} da_state;
87
88typedef enum {
89 DA_FLAG_PACK_INVALID = 0x001,
90 DA_FLAG_NEW_PACK = 0x002,
91 DA_FLAG_PACK_LOCKED = 0x004,
92 DA_FLAG_PACK_REMOVABLE = 0x008,
93 DA_FLAG_TAGGED_QUEUING = 0x010,
94 DA_FLAG_NEED_OTAG = 0x020,
95 DA_FLAG_WENT_IDLE = 0x040,
96 DA_FLAG_RETRY_UA = 0x080,
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97 DA_FLAG_OPEN = 0x100,
98 DA_FLAG_SCTX_INIT = 0x200
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99} da_flags;
100
101typedef enum {
102 DA_Q_NONE = 0x00,
103 DA_Q_NO_SYNC_CACHE = 0x01,
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104 DA_Q_NO_6_BYTE = 0x02,
105 DA_Q_NO_PREVENT = 0x04
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106} da_quirks;
107
108typedef enum {
109 DA_CCB_PROBE = 0x01,
110 DA_CCB_BUFFER_IO = 0x02,
111 DA_CCB_WAITING = 0x03,
112 DA_CCB_DUMP = 0x04,
113 DA_CCB_TYPE_MASK = 0x0F,
114 DA_CCB_RETRY_UA = 0x10
115} da_ccb_state;
116
117/* Offsets into our private area for storing information */
118#define ccb_state ppriv_field0
119#define ccb_bp ppriv_ptr1
120
121struct disk_params {
122 u_int8_t heads;
123 u_int16_t cylinders;
124 u_int8_t secs_per_track;
125 u_int32_t secsize; /* Number of bytes/sector */
126 u_int32_t sectors; /* total number sectors */
127};
128
129struct da_softc {
130 struct buf_queue_head buf_queue;
131 struct devstat device_stats;
132 SLIST_ENTRY(da_softc) links;
133 LIST_HEAD(, ccb_hdr) pending_ccbs;
134 da_state state;
135 da_flags flags;
136 da_quirks quirks;
137 int minimum_cmd_size;
138 int ordered_tag_count;
139 struct disk_params params;
140 struct disk disk;
141 union ccb saved_ccb;
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142 struct task sysctl_task;
143 struct sysctl_ctx_list sysctl_ctx;
144 struct sysctl_oid *sysctl_tree;
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145};
146
147struct da_quirk_entry {
148 struct scsi_inquiry_pattern inq_pat;
149 da_quirks quirks;
150};
151
152static const char quantum[] = "QUANTUM";
153static const char microp[] = "MICROP";
154
155static struct da_quirk_entry da_quirk_table[] =
156{
62ade751 157 /* SPI, FC devices */
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158 {
159 /*
160 * Fujitsu M2513A MO drives.
161 * Tested devices: M2513A2 firmware versions 1200 & 1300.
162 * (dip switch selects whether T_DIRECT or T_OPTICAL device)
163 * Reported by: W.Scholten <whs@xs4all.nl>
164 */
165 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
166 /*quirks*/ DA_Q_NO_SYNC_CACHE
167 },
168 {
169 /* See above. */
170 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
171 /*quirks*/ DA_Q_NO_SYNC_CACHE
172 },
173 {
174 /*
175 * This particular Fujitsu drive doesn't like the
176 * synchronize cache command.
177 * Reported by: Tom Jackson <toj@gorilla.net>
178 */
179 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
180 /*quirks*/ DA_Q_NO_SYNC_CACHE
181
182 },
183 {
184 /*
185 * This drive doesn't like the synchronize cache command
186 * either. Reported by: Matthew Jacob <mjacob@feral.com>
187 * in NetBSD PR kern/6027, August 24, 1998.
188 */
189 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
190 /*quirks*/ DA_Q_NO_SYNC_CACHE
191 },
192 {
193 /*
194 * This drive doesn't like the synchronize cache command
195 * either. Reported by: Hellmuth Michaelis (hm@kts.org)
196 * (PR 8882).
197 */
198 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
199 /*quirks*/ DA_Q_NO_SYNC_CACHE
200 },
201 {
202 /*
203 * Doesn't like the synchronize cache command.
204 * Reported by: Blaz Zupan <blaz@gold.amis.net>
205 */
206 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
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, "MAVERICK 540S", "*"},
214 /*quirks*/ DA_Q_NO_SYNC_CACHE
215 },
216 {
217 /*
218 * Doesn't like the synchronize cache command.
219 */
220 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
221 /*quirks*/ DA_Q_NO_SYNC_CACHE
222 },
223 {
224 /*
225 * Doesn't work correctly with 6 byte reads/writes.
226 * Returns illegal request, and points to byte 9 of the
227 * 6-byte CDB.
228 * Reported by: Adam McDougall <bsdx@spawnet.com>
229 */
230 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
231 /*quirks*/ DA_Q_NO_6_BYTE
232 },
233 {
62ade751 234 /* See above. */
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235 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
236 /*quirks*/ DA_Q_NO_6_BYTE
237 },
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238 /* XXX USB floppy quirks temporarily enabled for 4.9R */
239 /* USB floppy devices supported by umass(4) */
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240 {
241 /*
242 * This USB floppy drive uses the UFI command set. This
243 * command set is a derivative of the ATAPI command set and
244 * does not support READ_6 commands only READ_10. It also does
245 * not support sync cache (0x35).
246 */
247 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"},
62ade751 248 /*quirks*/ DA_Q_NO_SYNC_CACHE
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249 },
250 {
251 /* Another USB floppy */
252 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"},
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253 /*quirks*/ DA_Q_NO_SYNC_CACHE
254 },
255 {
256 /*
257 * The vendor, product and version strings coming from the
258 * controller are null terminated instead of being padded with
259 * spaces. The trailing wildcard character '*' is required.
260 */
261 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"},
262 /*quirks*/ DA_Q_NO_SYNC_CACHE
263 },
264 {
265 /*
266 * SmartDisk (Mitsumi) USB floppy drive
267 * PR: kern/50226
268 */
269 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"},
270 /*quirks*/ DA_Q_NO_SYNC_CACHE
984263bc 271 },
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272#ifdef DA_OLD_QUIRKS
273 /* USB mass storage devices supported by umass(4) */
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274 {
275 /*
276 * Sony Memory Stick adapter MSAC-US1 and
277 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01).
278 * Make all sony MS* products use this quirk.
279 */
280 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"},
62ade751 281 /*quirks*/ DA_Q_NO_SYNC_CACHE
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282 },
283 {
284 /*
285 * Sony Memory Stick adapter for the CLIE series
286 * of PalmOS PDA's
287 */
288 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"},
62ade751 289 /*quirks*/ DA_Q_NO_SYNC_CACHE
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290 },
291 {
292 /*
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293 * Intelligent Stick USB disk-on-key
294 * PR: kern/53005
984263bc 295 */
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296 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card",
297 "IntelligentStick*", "*"},
298 /*quirks*/ DA_Q_NO_SYNC_CACHE
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299 },
300 {
301 /*
62ade751 302 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70)
984263bc 303 */
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304 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
305 /*quirks*/ DA_Q_NO_SYNC_CACHE
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306 },
307 {
308 /*
309 * Microtech USB CameraMate
310 */
311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*",
312 "Compact Flash*", "*"},
62ade751 313 /*quirks*/ DA_Q_NO_SYNC_CACHE
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314 },
315 {
316 /*
317 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1)
318 */
319 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"},
62ade751 320 /*quirks*/ DA_Q_NO_SYNC_CACHE
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321 },
322 {
323 /*
324 * Olympus digital cameras (E-100RS, E-10).
325 */
326 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"},
62ade751 327 /*quirks*/ DA_Q_NO_SYNC_CACHE
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328 },
329 {
330 /*
331 * KingByte Pen Drives
332 */
333 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"},
62ade751 334 /*quirks*/ DA_Q_NO_SYNC_CACHE
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335 },
336 {
337 /*
338 * FujiFilm Camera
339 */
340 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT",
341 "USB-DRIVEUNIT", "*"},
62ade751 342 /*quirks*/ DA_Q_NO_SYNC_CACHE
984263bc 343 },
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344 {
345 /*
346 * Minolta Dimage E203
347 */
348 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"},
62ade751 349 /*quirks*/ DA_Q_NO_SYNC_CACHE
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350 },
351 {
352 /*
353 * Apacer HandyDrive
354 * PR: kern/43627
355 */
356 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"},
62ade751 357 /*quirks*/ DA_Q_NO_SYNC_CACHE
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358 },
359 {
360 /*
361 * Daisy Technology PhotoClip on Zoran chip
362 * PR: kern/43580
363 */
364 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"},
62ade751 365 /*quirks*/ DA_Q_NO_SYNC_CACHE
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366 },
367 {
368 /*
369 * Sony USB Key-Storage
370 * PR: kern/46386
371 */
372 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"},
62ade751 373 /*quirks*/ DA_Q_NO_SYNC_CACHE
984263bc 374 },
62ade751 375#endif /* DA_OLD_QUIRKS */
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376 {
377 /*
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378 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
379 * PR: kern/51675
984263bc 380 */
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381 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
382 /*quirks*/ DA_Q_NO_SYNC_CACHE
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383 },
384 {
385 /*
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386 * Jungsoft NEXDISK USB flash key
387 * PR: kern/54737
984263bc 388 */
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389 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
390 /*quirks*/ DA_Q_NO_SYNC_CACHE
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391 },
392 {
393 /*
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394 * Creative Nomad MUVO mp3 player (USB)
395 * PR: kern/53094
984263bc 396 */
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397 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
398 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
984263bc 399 },
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400};
401
402static d_open_t daopen;
403static d_close_t daclose;
404static d_strategy_t dastrategy;
405static d_ioctl_t daioctl;
406static d_dump_t dadump;
407static periph_init_t dainit;
408static void daasync(void *callback_arg, u_int32_t code,
409 struct cam_path *path, void *arg);
62ade751 410static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
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411static periph_ctor_t daregister;
412static periph_dtor_t dacleanup;
413static periph_start_t dastart;
414static periph_oninv_t daoninvalidate;
415static void dadone(struct cam_periph *periph,
416 union ccb *done_ccb);
417static int daerror(union ccb *ccb, u_int32_t cam_flags,
418 u_int32_t sense_flags);
419static void daprevent(struct cam_periph *periph, int action);
420static void dasetgeom(struct cam_periph *periph,
421 struct scsi_read_capacity_data * rdcap);
422static timeout_t dasendorderedtag;
423static void dashutdown(void *arg, int howto);
424
425#ifndef DA_DEFAULT_TIMEOUT
426#define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */
427#endif
428
429#ifndef DA_DEFAULT_RETRY
430#define DA_DEFAULT_RETRY 4
431#endif
432
433static int da_retry_count = DA_DEFAULT_RETRY;
434static int da_default_timeout = DA_DEFAULT_TIMEOUT;
984263bc 435
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436SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
437 "CAM Direct Access Disk driver");
438SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
439 &da_retry_count, 0, "Normal I/O retry count");
62ade751 440TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
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441SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
442 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
62ade751 443TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
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444
445/*
446 * DA_ORDEREDTAG_INTERVAL determines how often, relative
447 * to the default timeout, we check to see whether an ordered
448 * tagged transaction is appropriate to prevent simple tag
449 * starvation. Since we'd like to ensure that there is at least
450 * 1/2 of the timeout length left for a starved transaction to
451 * complete after we've sent an ordered tag, we must poll at least
452 * four times in every timeout period. This takes care of the worst
453 * case where a starved transaction starts during an interval that
454 * meets the requirement "don't send an ordered tag" test so it takes
455 * us two intervals to determine that a tag must be sent.
456 */
457#ifndef DA_ORDEREDTAG_INTERVAL
458#define DA_ORDEREDTAG_INTERVAL 4
459#endif
460
461static struct periph_driver dadriver =
462{
463 dainit, "da",
464 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
465};
466
467DATA_SET(periphdriver_set, dadriver);
468
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469/* For 2.2-stable support */
470#ifndef D_DISK
471#define D_DISK 0
472#endif
473
474static struct cdevsw da_cdevsw = {
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475 /* name */ "da",
476 /* maj */ DA_CDEV_MAJOR,
477 /* flags */ D_DISK,
478 /* port */ NULL,
455fcd7e 479 /* clone */ NULL,
fabb8ceb 480
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481 /* open */ daopen,
482 /* close */ daclose,
483 /* read */ physread,
484 /* write */ physwrite,
485 /* ioctl */ daioctl,
486 /* poll */ nopoll,
487 /* mmap */ nommap,
488 /* strategy */ dastrategy,
984263bc 489 /* dump */ dadump,
fabb8ceb 490 /* psize */ nopsize
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491};
492
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493static SLIST_HEAD(,da_softc) softc_list;
494static struct extend_array *daperiphs;
495
496static int
41c20dac 497daopen(dev_t dev, int flags, int fmt, struct thread *td)
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498{
499 struct cam_periph *periph;
500 struct da_softc *softc;
501 struct disklabel *label;
502 int unit;
503 int part;
504 int error;
505 int s;
506
507 unit = dkunit(dev);
508 part = dkpart(dev);
509 periph = cam_extend_get(daperiphs, unit);
510 if (periph == NULL)
511 return (ENXIO);
512
513 softc = (struct da_softc *)periph->softc;
514
515 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
516 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev),
517 unit, part));
518
377d4740 519 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
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520 return (error); /* error code from tsleep */
521 }
522
523 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
524 return(ENXIO);
525 softc->flags |= DA_FLAG_OPEN;
526
527 s = splsoftcam();
528 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
529 /* Invalidate our pack information. */
530 disk_invalidate(&softc->disk);
531 softc->flags &= ~DA_FLAG_PACK_INVALID;
532 }
533 splx(s);
534
535 /* Do a read capacity */
536 {
537 struct scsi_read_capacity_data *rcap;
538 union ccb *ccb;
539
898d961b 540 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO);
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541
542 ccb = cam_periph_getccb(periph, /*priority*/1);
543 scsi_read_capacity(&ccb->csio,
544 /*retries*/1,
545 /*cbfncp*/dadone,
546 MSG_SIMPLE_Q_TAG,
547 rcap,
548 SSD_FULL_SIZE,
549 /*timeout*/60000);
550 ccb->ccb_h.ccb_bp = NULL;
551
552 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
553 /*sense_flags*/SF_RETRY_UA |
554 SF_RETRY_SELTO,
555 &softc->device_stats);
556
557 xpt_release_ccb(ccb);
558
559 if (error == 0) {
560 dasetgeom(periph, rcap);
561 }
562
563 free(rcap, M_TEMP);
564 }
565
566 if (error == 0) {
567 struct ccb_getdev cgd;
568
569 /* Build label for whole disk. */
570 label = &softc->disk.d_label;
571 bzero(label, sizeof(*label));
572 label->d_type = DTYPE_SCSI;
573
574 /*
575 * Grab the inquiry data to get the vendor and product names.
576 * Put them in the typename and packname for the label.
577 */
578 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
579 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
580 xpt_action((union ccb *)&cgd);
581
582 strncpy(label->d_typename, cgd.inq_data.vendor,
583 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
584 strncpy(label->d_packname, cgd.inq_data.product,
585 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
586
587 label->d_secsize = softc->params.secsize;
588 label->d_nsectors = softc->params.secs_per_track;
589 label->d_ntracks = softc->params.heads;
590 label->d_ncylinders = softc->params.cylinders;
591 label->d_secpercyl = softc->params.heads
592 * softc->params.secs_per_track;
593 label->d_secperunit = softc->params.sectors;
594
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595 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
596 (softc->quirks & DA_Q_NO_PREVENT) == 0)
984263bc 597 daprevent(periph, PR_PREVENT);
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598
599 /*
600 * Check to see whether or not the blocksize is set yet.
601 * If it isn't, set it and then clear the blocksize
602 * unavailable flag for the device statistics.
603 */
604 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){
605 softc->device_stats.block_size = softc->params.secsize;
606 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
607 }
608 }
609
610 if (error != 0) {
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611 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
612 (softc->quirks & DA_Q_NO_PREVENT) == 0)
984263bc 613 daprevent(periph, PR_ALLOW);
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614 softc->flags &= ~DA_FLAG_OPEN;
615 cam_periph_release(periph);
616 }
617 cam_periph_unlock(periph);
618 return (error);
619}
620
621static int
41c20dac 622daclose(dev_t dev, int flag, int fmt, struct thread *td)
984263bc
MD
623{
624 struct cam_periph *periph;
625 struct da_softc *softc;
626 int unit;
627 int error;
628
629 unit = dkunit(dev);
630 periph = cam_extend_get(daperiphs, unit);
631 if (periph == NULL)
632 return (ENXIO);
633
634 softc = (struct da_softc *)periph->softc;
635
377d4740 636 if ((error = cam_periph_lock(periph, 0)) != 0) {
984263bc
MD
637 return (error); /* error code from tsleep */
638 }
639
640 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
641 union ccb *ccb;
642
643 ccb = cam_periph_getccb(periph, /*priority*/1);
644
645 scsi_synchronize_cache(&ccb->csio,
646 /*retries*/1,
647 /*cbfcnp*/dadone,
648 MSG_SIMPLE_Q_TAG,
649 /*begin_lba*/0,/* Cover the whole disk */
650 /*lb_count*/0,
651 SSD_FULL_SIZE,
652 5 * 60 * 1000);
653
654 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
655 /*sense_flags*/SF_RETRY_UA,
656 &softc->device_stats);
657
658 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
659 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
660 CAM_SCSI_STATUS_ERROR) {
661 int asc, ascq;
662 int sense_key, error_code;
663
664 scsi_extract_sense(&ccb->csio.sense_data,
665 &error_code,
666 &sense_key,
667 &asc, &ascq);
668 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
669 scsi_sense_print(&ccb->csio);
670 } else {
671 xpt_print_path(periph->path);
672 printf("Synchronize cache failed, status "
673 "== 0x%x, scsi status == 0x%x\n",
674 ccb->csio.ccb_h.status,
675 ccb->csio.scsi_status);
676 }
677 }
678
679 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
680 cam_release_devq(ccb->ccb_h.path,
681 /*relsim_flags*/0,
682 /*reduction*/0,
683 /*timeout*/0,
684 /*getcount_only*/0);
685
686 xpt_release_ccb(ccb);
687
688 }
689
690 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
62ade751
MD
691 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
692 daprevent(periph, PR_ALLOW);
984263bc
MD
693 /*
694 * If we've got removeable media, mark the blocksize as
695 * unavailable, since it could change when new media is
696 * inserted.
697 */
698 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
699 }
700
701 softc->flags &= ~DA_FLAG_OPEN;
702 cam_periph_unlock(periph);
703 cam_periph_release(periph);
704 return (0);
705}
706
707/*
708 * Actually translate the requested transfer into one the physical driver
709 * can understand. The transfer is described by a buf and will include
710 * only one physical transfer.
711 */
712static void
713dastrategy(struct buf *bp)
714{
715 struct cam_periph *periph;
716 struct da_softc *softc;
717 u_int unit;
718 u_int part;
719 int s;
720
721 unit = dkunit(bp->b_dev);
722 part = dkpart(bp->b_dev);
723 periph = cam_extend_get(daperiphs, unit);
724 if (periph == NULL) {
725 bp->b_error = ENXIO;
726 goto bad;
727 }
728 softc = (struct da_softc *)periph->softc;
729#if 0
730 /*
731 * check it's not too big a transfer for our adapter
732 */
733 scsi_minphys(bp,&sd_switch);
734#endif
735
736 /*
737 * Mask interrupts so that the pack cannot be invalidated until
738 * after we are in the queue. Otherwise, we might not properly
739 * clean up one of the buffers.
740 */
741 s = splbio();
742
743 /*
744 * If the device has been made invalid, error out
745 */
746 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
747 splx(s);
748 bp->b_error = ENXIO;
749 goto bad;
750 }
751
752 /*
753 * Place it in the queue of disk activities for this disk
754 */
755 bufqdisksort(&softc->buf_queue, bp);
756
757 splx(s);
758
759 /*
760 * Schedule ourselves for performing the work.
761 */
762 xpt_schedule(periph, /* XXX priority */1);
763
764 return;
765bad:
766 bp->b_flags |= B_ERROR;
767
768 /*
769 * Correctly set the buf to indicate a completed xfer
770 */
771 bp->b_resid = bp->b_bcount;
772 biodone(bp);
773 return;
774}
775
776/* For 2.2-stable support */
777#ifndef ENOIOCTL
778#define ENOIOCTL -1
779#endif
780
781static int
41c20dac 782daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
984263bc
MD
783{
784 struct cam_periph *periph;
785 struct da_softc *softc;
786 int unit;
787 int error;
788
789 unit = dkunit(dev);
790 periph = cam_extend_get(daperiphs, unit);
791 if (periph == NULL)
792 return (ENXIO);
793
794 softc = (struct da_softc *)periph->softc;
795
796 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n"));
797
377d4740 798 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
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MD
799 return (error); /* error code from tsleep */
800 }
801
802 error = cam_periph_ioctl(periph, cmd, addr, daerror);
803
804 cam_periph_unlock(periph);
805
806 return (error);
807}
808
809static int
810dadump(dev_t dev)
811{
812 struct cam_periph *periph;
813 struct da_softc *softc;
814 u_int unit;
815 u_int part;
816 u_int secsize;
817 u_int num; /* number of sectors to write */
818 u_int blknum;
819 long blkcnt;
62ade751 820 vm_paddr_t addr;
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MD
821 struct ccb_scsiio csio;
822 int dumppages = MAXDUMPPGS;
823 int error;
824 int i;
825
826 /* toss any characters present prior to dump */
827 while (cncheckc() != -1)
828 ;
829
830 unit = dkunit(dev);
831 part = dkpart(dev);
832 periph = cam_extend_get(daperiphs, unit);
833 if (periph == NULL) {
834 return (ENXIO);
835 }
836 softc = (struct da_softc *)periph->softc;
837
838 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
839 return (ENXIO);
840
841 error = disk_dumpcheck(dev, &num, &blknum, &secsize);
842 if (error)
843 return (error);
844
845 addr = 0; /* starting address */
846 blkcnt = howmany(PAGE_SIZE, secsize);
847
848 while (num > 0) {
849 caddr_t va = NULL;
850
851 if ((num / blkcnt) < dumppages)
852 dumppages = num / blkcnt;
853
854 for (i = 0; i < dumppages; ++i) {
62ade751 855 vm_paddr_t a = addr + (i * PAGE_SIZE);
984263bc
MD
856 if (is_physical_memory(a))
857 va = pmap_kenter_temporary(trunc_page(a), i);
858 else
859 va = pmap_kenter_temporary(trunc_page(0), i);
860 }
861
862 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
863 csio.ccb_h.ccb_state = DA_CCB_DUMP;
864 scsi_read_write(&csio,
865 /*retries*/1,
866 dadone,
867 MSG_ORDERED_Q_TAG,
868 /*read*/FALSE,
869 /*byte2*/0,
870 /*minimum_cmd_size*/ softc->minimum_cmd_size,
871 blknum,
872 blkcnt * dumppages,
873 /*data_ptr*/(u_int8_t *) va,
874 /*dxfer_len*/blkcnt * secsize * dumppages,
875 /*sense_len*/SSD_FULL_SIZE,
876 DA_DEFAULT_TIMEOUT * 1000);
877 xpt_polled_action((union ccb *)&csio);
878
879 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
880 printf("Aborting dump due to I/O error.\n");
881 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
882 CAM_SCSI_STATUS_ERROR)
883 scsi_sense_print(&csio);
884 else
885 printf("status == 0x%x, scsi status == 0x%x\n",
886 csio.ccb_h.status, csio.scsi_status);
887 return(EIO);
888 }
889
890 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0)
891 return (EINTR);
892
893 /* update block count */
894 num -= blkcnt * dumppages;
895 blknum += blkcnt * dumppages;
896 addr += PAGE_SIZE * dumppages;
897 }
898
899 /*
900 * Sync the disk cache contents to the physical media.
901 */
902 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
903
904 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
905 csio.ccb_h.ccb_state = DA_CCB_DUMP;
906 scsi_synchronize_cache(&csio,
907 /*retries*/1,
908 /*cbfcnp*/dadone,
909 MSG_SIMPLE_Q_TAG,
910 /*begin_lba*/0,/* Cover the whole disk */
911 /*lb_count*/0,
912 SSD_FULL_SIZE,
913 5 * 60 * 1000);
914 xpt_polled_action((union ccb *)&csio);
915
916 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
917 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
918 CAM_SCSI_STATUS_ERROR) {
919 int asc, ascq;
920 int sense_key, error_code;
921
922 scsi_extract_sense(&csio.sense_data,
923 &error_code,
924 &sense_key,
925 &asc, &ascq);
926 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
927 scsi_sense_print(&csio);
928 } else {
929 xpt_print_path(periph->path);
930 printf("Synchronize cache failed, status "
931 "== 0x%x, scsi status == 0x%x\n",
932 csio.ccb_h.status, csio.scsi_status);
933 }
934 }
935 }
936 return (0);
937}
938
939static void
940dainit(void)
941{
942 cam_status status;
943 struct cam_path *path;
944
945 /*
946 * Create our extend array for storing the devices we attach to.
947 */
948 daperiphs = cam_extend_new();
949 SLIST_INIT(&softc_list);
950 if (daperiphs == NULL) {
951 printf("da: Failed to alloc extend array!\n");
952 return;
953 }
954
955 /*
956 * Install a global async callback. This callback will
957 * receive async callbacks like "new device found".
958 */
959 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
960 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
961
962 if (status == CAM_REQ_CMP) {
963 struct ccb_setasync csa;
964
965 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
966 csa.ccb_h.func_code = XPT_SASYNC_CB;
967 csa.event_enable = AC_FOUND_DEVICE;
968 csa.callback = daasync;
969 csa.callback_arg = NULL;
970 xpt_action((union ccb *)&csa);
971 status = csa.ccb_h.status;
972 xpt_free_path(path);
973 }
974
975 if (status != CAM_REQ_CMP) {
976 printf("da: Failed to attach master async callback "
977 "due to status 0x%x!\n", status);
978 } else {
979
980 /*
981 * Schedule a periodic event to occasionally send an
982 * ordered tag to a device.
983 */
984 timeout(dasendorderedtag, NULL,
985 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
986
987 /* Register our shutdown event handler */
988 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
989 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
990 printf("dainit: shutdown event registration failed!\n");
991 }
992}
993
994static void
995daoninvalidate(struct cam_periph *periph)
996{
997 int s;
998 struct da_softc *softc;
999 struct buf *q_bp;
1000 struct ccb_setasync csa;
1001
1002 softc = (struct da_softc *)periph->softc;
1003
1004 /*
1005 * De-register any async callbacks.
1006 */
1007 xpt_setup_ccb(&csa.ccb_h, periph->path,
1008 /* priority */ 5);
1009 csa.ccb_h.func_code = XPT_SASYNC_CB;
1010 csa.event_enable = 0;
1011 csa.callback = daasync;
1012 csa.callback_arg = periph;
1013 xpt_action((union ccb *)&csa);
1014
1015 softc->flags |= DA_FLAG_PACK_INVALID;
1016
1017 /*
1018 * Although the oninvalidate() routines are always called at
1019 * splsoftcam, we need to be at splbio() here to keep the buffer
1020 * queue from being modified while we traverse it.
1021 */
1022 s = splbio();
1023
1024 /*
1025 * Return all queued I/O with ENXIO.
1026 * XXX Handle any transactions queued to the card
1027 * with XPT_ABORT_CCB.
1028 */
1029 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
1030 bufq_remove(&softc->buf_queue, q_bp);
1031 q_bp->b_resid = q_bp->b_bcount;
1032 q_bp->b_error = ENXIO;
1033 q_bp->b_flags |= B_ERROR;
1034 biodone(q_bp);
1035 }
1036 splx(s);
1037
1038 SLIST_REMOVE(&softc_list, softc, da_softc, links);
1039
1040 xpt_print_path(periph->path);
1041 printf("lost device\n");
1042}
1043
1044static void
1045dacleanup(struct cam_periph *periph)
1046{
1047 struct da_softc *softc;
1048
1049 softc = (struct da_softc *)periph->softc;
1050
1051 devstat_remove_entry(&softc->device_stats);
1052 cam_extend_release(daperiphs, periph->unit_number);
1053 xpt_print_path(periph->path);
1054 printf("removing device entry\n");
62ade751
MD
1055 /*
1056 * If we can't free the sysctl tree, oh well...
1057 */
1058 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1059 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1060 xpt_print_path(periph->path);
1061 printf("can't remove sysctl context\n");
1062 }
984263bc 1063 if (softc->disk.d_dev) {
335dda38 1064 disk_destroy(&softc->disk);
984263bc
MD
1065 }
1066 free(softc, M_DEVBUF);
1067}
1068
1069static void
1070daasync(void *callback_arg, u_int32_t code,
1071 struct cam_path *path, void *arg)
1072{
1073 struct cam_periph *periph;
1074
1075 periph = (struct cam_periph *)callback_arg;
1076 switch (code) {
1077 case AC_FOUND_DEVICE:
1078 {
1079 struct ccb_getdev *cgd;
1080 cam_status status;
1081
1082 cgd = (struct ccb_getdev *)arg;
1083
1084 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1085 && SID_TYPE(&cgd->inq_data) != T_RBC
1086 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1087 break;
1088
1089 /*
1090 * Allocate a peripheral instance for
1091 * this device and start the probe
1092 * process.
1093 */
1094 status = cam_periph_alloc(daregister, daoninvalidate,
1095 dacleanup, dastart,
1096 "da", CAM_PERIPH_BIO,
1097 cgd->ccb_h.path, daasync,
1098 AC_FOUND_DEVICE, cgd);
1099
1100 if (status != CAM_REQ_CMP
1101 && status != CAM_REQ_INPROG)
1102 printf("daasync: Unable to attach to new device "
1103 "due to status 0x%x\n", status);
1104 break;
1105 }
1106 case AC_SENT_BDR:
1107 case AC_BUS_RESET:
1108 {
1109 struct da_softc *softc;
1110 struct ccb_hdr *ccbh;
1111 int s;
1112
1113 softc = (struct da_softc *)periph->softc;
1114 s = splsoftcam();
1115 /*
1116 * Don't fail on the expected unit attention
1117 * that will occur.
1118 */
1119 softc->flags |= DA_FLAG_RETRY_UA;
1120 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
1121 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
1122 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1123 splx(s);
1124 /* FALLTHROUGH*/
1125 }
1126 default:
1127 cam_periph_async(periph, code, path, arg);
1128 break;
1129 }
1130}
1131
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MD
1132static void
1133dasysctlinit(void *context, int pending)
1134{
1135 struct cam_periph *periph;
1136 struct da_softc *softc;
1137 char tmpstr[80], tmpstr2[80];
1138
1139 periph = (struct cam_periph *)context;
1140 softc = (struct da_softc *)periph->softc;
1141
1142 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1143 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1144
1145 sysctl_ctx_init(&softc->sysctl_ctx);
1146 softc->flags |= DA_FLAG_SCTX_INIT;
1147 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1148 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1149 CTLFLAG_RD, 0, tmpstr);
1150 if (softc->sysctl_tree == NULL) {
1151 printf("dasysctlinit: unable to allocate sysctl tree\n");
1152 return;
1153 }
1154
1155 /*
1156 * Now register the sysctl handler, so the user can the value on
1157 * the fly.
1158 */
1159 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
1160 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1161 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1162 "Minimum CDB size");
1163}
1164
1165static int
1166dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1167{
1168 int error, value;
1169
1170 value = *(int *)arg1;
1171
1172 error = sysctl_handle_int(oidp, &value, 0, req);
1173
1174 if ((error != 0)
1175 || (req->newptr == NULL))
1176 return (error);
1177
1178 /*
1179 * Acceptable values here are 6, 10 or 12. It's possible we may
1180 * support a 16 byte minimum command size in the future, since
1181 * there are now READ(16) and WRITE(16) commands defined in the
1182 * SBC-2 spec.
1183 */
1184 if (value < 6)
1185 value = 6;
1186 else if ((value > 6)
1187 && (value <= 10))
1188 value = 10;
1189 else if (value > 10)
1190 value = 12;
1191
1192 *(int *)arg1 = value;
1193
1194 return (0);
1195}
1196
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MD
1197static cam_status
1198daregister(struct cam_periph *periph, void *arg)
1199{
1200 int s;
1201 struct da_softc *softc;
1202 struct ccb_setasync csa;
62ade751 1203 struct ccb_pathinq cpi;
984263bc 1204 struct ccb_getdev *cgd;
62ade751 1205 char tmpstr[80];
984263bc
MD
1206 caddr_t match;
1207
1208 cgd = (struct ccb_getdev *)arg;
1209 if (periph == NULL) {
1210 printf("daregister: periph was NULL!!\n");
1211 return(CAM_REQ_CMP_ERR);
1212 }
1213
1214 if (cgd == NULL) {
1215 printf("daregister: no getdev CCB, can't register device\n");
1216 return(CAM_REQ_CMP_ERR);
1217 }
1218
ad86f6b6 1219 softc = malloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
984263bc
MD
1220 LIST_INIT(&softc->pending_ccbs);
1221 softc->state = DA_STATE_PROBE;
1222 bufq_init(&softc->buf_queue);
1223 if (SID_IS_REMOVABLE(&cgd->inq_data))
1224 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1225 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1226 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1227
1228 periph->softc = softc;
1229
1230 cam_extend_set(daperiphs, periph->unit_number, periph);
1231
1232 /*
1233 * See if this device has any quirks.
1234 */
1235 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1236 (caddr_t)da_quirk_table,
1237 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1238 sizeof(*da_quirk_table), scsi_inquiry_match);
1239
1240 if (match != NULL)
1241 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1242 else
1243 softc->quirks = DA_Q_NONE;
1244
62ade751
MD
1245 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1246
1247 /* Check if the SIM does not want 6 byte commands */
1248 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
1249 cpi.ccb_h.func_code = XPT_PATH_INQ;
1250 xpt_action((union ccb *)&cpi);
1251 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1252 softc->quirks |= DA_Q_NO_6_BYTE;
1253
1254 /*
1255 * RBC devices don't have to support READ(6), only READ(10).
1256 */
984263bc
MD
1257 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1258 softc->minimum_cmd_size = 10;
1259 else
1260 softc->minimum_cmd_size = 6;
1261
62ade751
MD
1262 /*
1263 * Load the user's default, if any.
1264 */
1265 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1266 periph->unit_number);
1267 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1268
1269 /*
1270 * 6, 10 and 12 are the currently permissible values.
1271 */
1272 if (softc->minimum_cmd_size < 6)
1273 softc->minimum_cmd_size = 6;
1274 else if ((softc->minimum_cmd_size > 6)
1275 && (softc->minimum_cmd_size <= 10))
1276 softc->minimum_cmd_size = 10;
1277 else if (softc->minimum_cmd_size > 12)
1278 softc->minimum_cmd_size = 12;
1279
984263bc
MD
1280 /*
1281 * Block our timeout handler while we
1282 * add this softc to the dev list.
1283 */
1284 s = splsoftclock();
1285 SLIST_INSERT_HEAD(&softc_list, softc, links);
1286 splx(s);
1287
1288 /*
1289 * The DA driver supports a blocksize, but
1290 * we don't know the blocksize until we do
1291 * a read capacity. So, set a flag to
1292 * indicate that the blocksize is
1293 * unavailable right now. We'll clear the
1294 * flag as soon as we've done a read capacity.
1295 */
1296 devstat_add_entry(&softc->device_stats, "da",
1297 periph->unit_number, 0,
1298 DEVSTAT_BS_UNAVAILABLE,
1299 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
1300 DEVSTAT_PRIORITY_DISK);
1301
1302 /*
1303 * Register this media as a disk
1304 */
335dda38 1305 disk_create(periph->unit_number, &softc->disk, 0, &da_cdevsw);
984263bc
MD
1306
1307 /*
1308 * Add async callbacks for bus reset and
1309 * bus device reset calls. I don't bother
1310 * checking if this fails as, in most cases,
1311 * the system will function just fine without
1312 * them and the only alternative would be to
1313 * not attach the device on failure.
1314 */
1315 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
1316 csa.ccb_h.func_code = XPT_SASYNC_CB;
1317 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
1318 csa.callback = daasync;
1319 csa.callback_arg = periph;
1320 xpt_action((union ccb *)&csa);
1321 /*
1322 * Lock this peripheral until we are setup.
1323 * This first call can't block
1324 */
377d4740 1325 (void)cam_periph_lock(periph, 0);
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1326 xpt_schedule(periph, /*priority*/5);
1327
1328 return(CAM_REQ_CMP);
1329}
1330
1331static void
1332dastart(struct cam_periph *periph, union ccb *start_ccb)
1333{
1334 struct da_softc *softc;
1335
1336 softc = (struct da_softc *)periph->softc;
1337
1338
1339 switch (softc->state) {
1340 case DA_STATE_NORMAL:
1341 {
1342 /* Pull a buffer from the queue and get going on it */
1343 struct buf *bp;
1344 int s;
1345
1346 /*
1347 * See if there is a buf with work for us to do..
1348 */
1349 s = splbio();
1350 bp = bufq_first(&softc->buf_queue);
1351 if (periph->immediate_priority <= periph->pinfo.priority) {
1352 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1353 ("queuing for immediate ccb\n"));
1354 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1355 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1356 periph_links.sle);
1357 periph->immediate_priority = CAM_PRIORITY_NONE;
1358 splx(s);
1359 wakeup(&periph->ccb_list);
1360 } else if (bp == NULL) {
1361 splx(s);
1362 xpt_release_ccb(start_ccb);
1363 } else {
1364 int oldspl;
1365 u_int8_t tag_code;
1366
1367 bufq_remove(&softc->buf_queue, bp);
1368
1369 devstat_start_transaction(&softc->device_stats);
1370
1371 if ((bp->b_flags & B_ORDERED) != 0
1372 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1373 softc->flags &= ~DA_FLAG_NEED_OTAG;
1374 softc->ordered_tag_count++;
1375 tag_code = MSG_ORDERED_Q_TAG;
1376 } else {
1377 tag_code = MSG_SIMPLE_Q_TAG;
1378 }
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MD
1379 scsi_read_write(&start_ccb->csio,
1380 /*retries*/da_retry_count,
1381 dadone,
1382 tag_code,
1383 bp->b_flags & B_READ,
1384 /*byte2*/0,
1385 softc->minimum_cmd_size,
1386 bp->b_pblkno,
1387 bp->b_bcount / softc->params.secsize,
1388 bp->b_data,
1389 bp->b_bcount,
1390 /*sense_len*/SSD_FULL_SIZE,
1391 da_default_timeout * 1000);
1392 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1393
1394 /*
1395 * Block out any asyncronous callbacks
1396 * while we touch the pending ccb list.
1397 */
1398 oldspl = splcam();
1399 LIST_INSERT_HEAD(&softc->pending_ccbs,
1400 &start_ccb->ccb_h, periph_links.le);
1401 splx(oldspl);
1402
1403 /* We expect a unit attention from this device */
1404 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1405 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1406 softc->flags &= ~DA_FLAG_RETRY_UA;
1407 }
1408
1409 start_ccb->ccb_h.ccb_bp = bp;
1410 bp = bufq_first(&softc->buf_queue);
1411 splx(s);
1412
1413 xpt_action(start_ccb);
1414 }
1415
1416 if (bp != NULL) {
1417 /* Have more work to do, so ensure we stay scheduled */
1418 xpt_schedule(periph, /* XXX priority */1);
1419 }
1420 break;
1421 }
1422 case DA_STATE_PROBE:
1423 {
1424 struct ccb_scsiio *csio;
1425 struct scsi_read_capacity_data *rcap;
1426
898d961b 1427 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO);
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MD
1428 csio = &start_ccb->csio;
1429 scsi_read_capacity(csio,
1430 /*retries*/4,
1431 dadone,
1432 MSG_SIMPLE_Q_TAG,
1433 rcap,
1434 SSD_FULL_SIZE,
1435 /*timeout*/5000);
1436 start_ccb->ccb_h.ccb_bp = NULL;
1437 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1438 xpt_action(start_ccb);
1439 break;
1440 }
1441 }
1442}
1443
1444static int
1445cmd6workaround(union ccb *ccb)
1446{
1447 struct scsi_rw_6 cmd6;
1448 struct scsi_rw_10 *cmd10;
1449 struct da_softc *softc;
1450 u_int8_t *cdb;
1451 int frozen;
1452
1453 cdb = ccb->csio.cdb_io.cdb_bytes;
1454
1455 /* Translation only possible if CDB is an array and cmd is R/W6 */
1456 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1457 (*cdb != READ_6 && *cdb != WRITE_6))
1458 return 0;
1459
1460 xpt_print_path(ccb->ccb_h.path);
1461 printf("READ(6)/WRITE(6) not supported, "
1462 "increasing minimum_cmd_size to 10.\n");
1463 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1464 softc->minimum_cmd_size = 10;
1465
1466 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1467 cmd10 = (struct scsi_rw_10 *)cdb;
1468 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1469 cmd10->byte2 = 0;
1470 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1471 cmd10->reserved = 0;
1472 scsi_ulto2b(cmd6.length, cmd10->length);
1473 cmd10->control = cmd6.control;
1474 ccb->csio.cdb_len = sizeof(*cmd10);
1475
1476 /* Requeue request, unfreezing queue if necessary */
1477 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1478 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1479 xpt_action(ccb);
1480 if (frozen) {
1481 cam_release_devq(ccb->ccb_h.path,
1482 /*relsim_flags*/0,
1483 /*reduction*/0,
1484 /*timeout*/0,
1485 /*getcount_only*/0);
1486 }
1487 return (ERESTART);
1488}
1489
1490static void
1491dadone(struct cam_periph *periph, union ccb *done_ccb)
1492{
1493 struct da_softc *softc;
1494 struct ccb_scsiio *csio;
1495
1496 softc = (struct da_softc *)periph->softc;
1497 csio = &done_ccb->csio;
1498 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1499 case DA_CCB_BUFFER_IO:
1500 {
1501 struct buf *bp;
1502 int oldspl;
1503
1504 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
1505 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1506 int error;
1507 int s;
1508 int sf;
1509
1510 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1511 sf = SF_RETRY_UA;
1512 else
1513 sf = 0;
1514
1515 /* Retry selection timeouts */
1516 sf |= SF_RETRY_SELTO;
1517
1518 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) {
1519 /*
1520 * A retry was scheuled, so
1521 * just return.
1522 */
1523 return;
1524 }
1525 if (error != 0) {
1526 struct buf *q_bp;
1527
1528 s = splbio();
1529
1530 if (error == ENXIO) {
1531 /*
1532 * Catastrophic error. Mark our pack as
1533 * invalid.
1534 */
1535 /* XXX See if this is really a media
1536 * change first.
1537 */
1538 xpt_print_path(periph->path);
1539 printf("Invalidating pack\n");
1540 softc->flags |= DA_FLAG_PACK_INVALID;
1541 }
1542
1543 /*
1544 * return all queued I/O with EIO, so that
1545 * the client can retry these I/Os in the
1546 * proper order should it attempt to recover.
1547 */
1548 while ((q_bp = bufq_first(&softc->buf_queue))
1549 != NULL) {
1550 bufq_remove(&softc->buf_queue, q_bp);
1551 q_bp->b_resid = q_bp->b_bcount;
1552 q_bp->b_error = EIO;
1553 q_bp->b_flags |= B_ERROR;
1554 biodone(q_bp);
1555 }
1556 splx(s);
1557 bp->b_error = error;
1558 bp->b_resid = bp->b_bcount;
1559 bp->b_flags |= B_ERROR;
1560 } else {
1561 bp->b_resid = csio->resid;
1562 bp->b_error = 0;
62ade751 1563 if (bp->b_resid != 0)
984263bc 1564 bp->b_flags |= B_ERROR;
984263bc
MD
1565 }
1566 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1567 cam_release_devq(done_ccb->ccb_h.path,
1568 /*relsim_flags*/0,
1569 /*reduction*/0,
1570 /*timeout*/0,
1571 /*getcount_only*/0);
1572 } else {
1573 bp->b_resid = csio->resid;
62ade751 1574 if (csio->resid > 0)
984263bc 1575 bp->b_flags |= B_ERROR;
984263bc
MD
1576 }
1577
1578 /*
1579 * Block out any asyncronous callbacks
1580 * while we touch the pending ccb list.
1581 */
1582 oldspl = splcam();
1583 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1584 splx(oldspl);
1585
1586 if (softc->device_stats.busy_count == 0)
1587 softc->flags |= DA_FLAG_WENT_IDLE;
1588
1589 devstat_end_transaction_buf(&softc->device_stats, bp);
1590 biodone(bp);
1591 break;
1592 }
1593 case DA_CCB_PROBE:
1594 {
1595 struct scsi_read_capacity_data *rdcap;
1596 char announce_buf[80];
1597
1598 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1599
1600 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1601 struct disk_params *dp;
1602
1603 dasetgeom(periph, rdcap);
1604 dp = &softc->params;
1605 snprintf(announce_buf, sizeof(announce_buf),
1606 "%luMB (%u %u byte sectors: %dH %dS/T %dC)",
1607 (unsigned long) (((u_int64_t)dp->secsize *
1608 dp->sectors) / (1024*1024)), dp->sectors,
1609 dp->secsize, dp->heads, dp->secs_per_track,
1610 dp->cylinders);
1611 } else {
1612 int error;
1613
1614 announce_buf[0] = '\0';
1615
1616 /*
1617 * Retry any UNIT ATTENTION type errors. They
1618 * are expected at boot.
1619 */
1620 error = daerror(done_ccb, 0, SF_RETRY_UA |
1621 SF_RETRY_SELTO | SF_NO_PRINT);
1622 if (error == ERESTART) {
1623 /*
1624 * A retry was scheuled, so
1625 * just return.
1626 */
1627 return;
1628 } else if (error != 0) {
1629 struct scsi_sense_data *sense;
1630 int asc, ascq;
1631 int sense_key, error_code;
1632 int have_sense;
1633 cam_status status;
1634 struct ccb_getdev cgd;
1635
1636 /* Don't wedge this device's queue */
1637 cam_release_devq(done_ccb->ccb_h.path,
1638 /*relsim_flags*/0,
1639 /*reduction*/0,
1640 /*timeout*/0,
1641 /*getcount_only*/0);
1642
1643 status = done_ccb->ccb_h.status;
1644
1645 xpt_setup_ccb(&cgd.ccb_h,
1646 done_ccb->ccb_h.path,
1647 /* priority */ 1);
1648 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1649 xpt_action((union ccb *)&cgd);
1650
1651 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1652 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1653 || ((status & CAM_AUTOSNS_VALID) == 0))
1654 have_sense = FALSE;
1655 else
1656 have_sense = TRUE;
1657
1658 if (have_sense) {
1659 sense = &csio->sense_data;
1660 scsi_extract_sense(sense, &error_code,
1661 &sense_key,
1662 &asc, &ascq);
1663 }
1664 /*
1665 * Attach to anything that claims to be a
1666 * direct access or optical disk device,
1667 * as long as it doesn't return a "Logical
1668 * unit not supported" (0x25) error.
1669 */
1670 if ((have_sense) && (asc != 0x25)
1671 && (error_code == SSD_CURRENT_ERROR))
1672 snprintf(announce_buf,
1673 sizeof(announce_buf),
1674 "Attempt to query device "
1675 "size failed: %s, %s",
1676 scsi_sense_key_text[sense_key],
1677 scsi_sense_desc(asc,ascq,
1678 &cgd.inq_data));
1679 else {
1680 if (have_sense)
1681 scsi_sense_print(
1682 &done_ccb->csio);
1683 else {
1684 xpt_print_path(periph->path);
1685 printf("got CAM status %#x\n",
1686 done_ccb->ccb_h.status);
1687 }
1688
1689 xpt_print_path(periph->path);
1690 printf("fatal error, failed"
1691 " to attach to device\n");
1692
1693 /*
1694 * Free up resources.
1695 */
1696 cam_periph_invalidate(periph);
1697 }
1698 }
1699 }
1700 free(rdcap, M_TEMP);
62ade751 1701 if (announce_buf[0] != '\0') {
984263bc 1702 xpt_announce_periph(periph, announce_buf);
62ade751
MD
1703 /*
1704 * Create our sysctl variables, now that we know
1705 * we have successfully attached.
1706 */
1707 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1708 }
984263bc
MD
1709 softc->state = DA_STATE_NORMAL;
1710 /*
1711 * Since our peripheral may be invalidated by an error
1712 * above or an external event, we must release our CCB
1713 * before releasing the probe lock on the peripheral.
1714 * The peripheral will only go away once the last lock
1715 * is removed, and we need it around for the CCB release
1716 * operation.
1717 */
1718 xpt_release_ccb(done_ccb);
1719 cam_periph_unlock(periph);
1720 return;
1721 }
1722 case DA_CCB_WAITING:
1723 {
1724 /* Caller will release the CCB */
1725 wakeup(&done_ccb->ccb_h.cbfcnp);
1726 return;
1727 }
1728 case DA_CCB_DUMP:
1729 /* No-op. We're polling */
1730 return;
1731 default:
1732 break;
1733 }
1734 xpt_release_ccb(done_ccb);
1735}
1736
1737static int
1738daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1739{
1740 struct da_softc *softc;
1741 struct cam_periph *periph;
62ade751 1742 int error;
984263bc
MD
1743
1744 periph = xpt_path_periph(ccb->ccb_h.path);
1745 softc = (struct da_softc *)periph->softc;
1746
1747 /*
1748 * Automatically detect devices that do not support
1749 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1750 */
1751 error = 0;
62ade751
MD
1752 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1753 error = cmd6workaround(ccb);
1754 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1755 CAM_SCSI_STATUS_ERROR)
1756 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1757 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1758 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1759 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1760 int sense_key, error_code, asc, ascq;
1761
984263bc
MD
1762 scsi_extract_sense(&ccb->csio.sense_data,
1763 &error_code, &sense_key, &asc, &ascq);
1764 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1765 error = cmd6workaround(ccb);
1766 }
1767 if (error == ERESTART)
1768 return (ERESTART);
1769
1770 /*
1771 * XXX
1772 * Until we have a better way of doing pack validation,
1773 * don't treat UAs as errors.
1774 */
1775 sense_flags |= SF_RETRY_UA;
1776 return(cam_periph_error(ccb, cam_flags, sense_flags,
1777 &softc->saved_ccb));
1778}
1779
1780static void
1781daprevent(struct cam_periph *periph, int action)
1782{
1783 struct da_softc *softc;
1784 union ccb *ccb;
1785 int error;
1786
1787 softc = (struct da_softc *)periph->softc;
1788
1789 if (((action == PR_ALLOW)
1790 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1791 || ((action == PR_PREVENT)
1792 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1793 return;
1794 }
1795
1796 ccb = cam_periph_getccb(periph, /*priority*/1);
1797
1798 scsi_prevent(&ccb->csio,
1799 /*retries*/1,
1800 /*cbcfp*/dadone,
1801 MSG_SIMPLE_Q_TAG,
1802 action,
1803 SSD_FULL_SIZE,
1804 5000);
1805
1806 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
1807 /*sense_flags*/0, &softc->device_stats);
1808
1809 if (error == 0) {
1810 if (action == PR_ALLOW)
1811 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1812 else
1813 softc->flags |= DA_FLAG_PACK_LOCKED;
1814 }
1815
1816 xpt_release_ccb(ccb);
1817}
1818
1819static void
1820dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap)
1821{
1822 struct ccb_calc_geometry ccg;
1823 struct da_softc *softc;
1824 struct disk_params *dp;
1825
1826 softc = (struct da_softc *)periph->softc;
1827
1828 dp = &softc->params;
1829 dp->secsize = scsi_4btoul(rdcap->length);
1830 dp->sectors = scsi_4btoul(rdcap->addr) + 1;
1831 /*
1832 * Have the controller provide us with a geometry
1833 * for this disk. The only time the geometry
1834 * matters is when we boot and the controller
1835 * is the only one knowledgeable enough to come
1836 * up with something that will make this a bootable
1837 * device.
1838 */
1839 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1840 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1841 ccg.block_size = dp->secsize;
1842 ccg.volume_size = dp->sectors;
1843 ccg.heads = 0;
1844 ccg.secs_per_track = 0;
1845 ccg.cylinders = 0;
1846 xpt_action((union ccb*)&ccg);
1847 dp->heads = ccg.heads;
1848 dp->secs_per_track = ccg.secs_per_track;
1849 dp->cylinders = ccg.cylinders;
1850}
1851
1852static void
1853dasendorderedtag(void *arg)
1854{
1855 struct da_softc *softc;
1856 int s;
1857
1858 for (softc = SLIST_FIRST(&softc_list);
1859 softc != NULL;
1860 softc = SLIST_NEXT(softc, links)) {
1861 s = splsoftcam();
1862 if ((softc->ordered_tag_count == 0)
1863 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
1864 softc->flags |= DA_FLAG_NEED_OTAG;
1865 }
1866 if (softc->device_stats.busy_count > 0)
1867 softc->flags &= ~DA_FLAG_WENT_IDLE;
1868
1869 softc->ordered_tag_count = 0;
1870 splx(s);
1871 }
1872 /* Queue us up again */
1873 timeout(dasendorderedtag, NULL,
1874 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
1875}
1876
1877/*
1878 * Step through all DA peripheral drivers, and if the device is still open,
1879 * sync the disk cache to physical media.
1880 */
1881static void
1882dashutdown(void * arg, int howto)
1883{
1884 struct cam_periph *periph;
1885 struct da_softc *softc;
1886
1887 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL;
1888 periph = TAILQ_NEXT(periph, unit_links)) {
1889 union ccb ccb;
1890 softc = (struct da_softc *)periph->softc;
1891
1892 /*
1893 * We only sync the cache if the drive is still open, and
1894 * if the drive is capable of it..
1895 */
1896 if (((softc->flags & DA_FLAG_OPEN) == 0)
1897 || (softc->quirks & DA_Q_NO_SYNC_CACHE))
1898 continue;
1899
1900 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
1901
1902 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
1903 scsi_synchronize_cache(&ccb.csio,
1904 /*retries*/1,
1905 /*cbfcnp*/dadone,
1906 MSG_SIMPLE_Q_TAG,
1907 /*begin_lba*/0, /* whole disk */
1908 /*lb_count*/0,
1909 SSD_FULL_SIZE,
1910 5 * 60 * 1000);
1911
1912 xpt_polled_action(&ccb);
1913
1914 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1915 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
1916 CAM_SCSI_STATUS_ERROR)
1917 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
1918 int error_code, sense_key, asc, ascq;
1919
1920 scsi_extract_sense(&ccb.csio.sense_data,
1921 &error_code, &sense_key,
1922 &asc, &ascq);
1923
1924 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1925 scsi_sense_print(&ccb.csio);
1926 } else {
1927 xpt_print_path(periph->path);
1928 printf("Synchronize cache failed, status "
1929 "== 0x%x, scsi status == 0x%x\n",
1930 ccb.ccb_h.status, ccb.csio.scsi_status);
1931 }
1932 }
1933
1934 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1935 cam_release_devq(ccb.ccb_h.path,
1936 /*relsim_flags*/0,
1937 /*reduction*/0,
1938 /*timeout*/0,
1939 /*getcount_only*/0);
1940
1941 }
1942}
1943
1944#else /* !_KERNEL */
1945
1946/*
1947 * XXX This is only left out of the kernel build to silence warnings. If,
1948 * for some reason this function is used in the kernel, the ifdefs should
1949 * be moved so it is included both in the kernel and userland.
1950 */
1951void
1952scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
1953 void (*cbfcnp)(struct cam_periph *, union ccb *),
1954 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
1955 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
1956 u_int32_t timeout)
1957{
1958 struct scsi_format_unit *scsi_cmd;
1959
1960 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
1961 scsi_cmd->opcode = FORMAT_UNIT;
1962 scsi_cmd->byte2 = byte2;
1963 scsi_ulto2b(ileave, scsi_cmd->interleave);
1964
1965 cam_fill_csio(csio,
1966 retries,
1967 cbfcnp,
1968 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
1969 tag_action,
1970 data_ptr,
1971 dxfer_len,
1972 sense_len,
1973 sizeof(*scsi_cmd),
1974 timeout);
1975}
1976
1977#endif /* _KERNEL */