Synchronize the USB, CAM, and TASKQUEUE subsystems with FreeBSD RELENG_4.
[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 *
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28 * $FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.42.2.46 2003/10/21 22:18:19 thomas Exp $
29 * $DragonFly: src/sys/bus/cam/scsi/scsi_da.c,v 1.12 2003/12/29 06:42:10 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;
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435
436SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem");
437SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
438 "CAM Direct Access Disk driver");
439SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
440 &da_retry_count, 0, "Normal I/O retry count");
62ade751 441TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
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442SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
443 &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
62ade751 444TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
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445
446/*
447 * DA_ORDEREDTAG_INTERVAL determines how often, relative
448 * to the default timeout, we check to see whether an ordered
449 * tagged transaction is appropriate to prevent simple tag
450 * starvation. Since we'd like to ensure that there is at least
451 * 1/2 of the timeout length left for a starved transaction to
452 * complete after we've sent an ordered tag, we must poll at least
453 * four times in every timeout period. This takes care of the worst
454 * case where a starved transaction starts during an interval that
455 * meets the requirement "don't send an ordered tag" test so it takes
456 * us two intervals to determine that a tag must be sent.
457 */
458#ifndef DA_ORDEREDTAG_INTERVAL
459#define DA_ORDEREDTAG_INTERVAL 4
460#endif
461
462static struct periph_driver dadriver =
463{
464 dainit, "da",
465 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
466};
467
468DATA_SET(periphdriver_set, dadriver);
469
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470/* For 2.2-stable support */
471#ifndef D_DISK
472#define D_DISK 0
473#endif
474
475static struct cdevsw da_cdevsw = {
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476 /* name */ "da",
477 /* maj */ DA_CDEV_MAJOR,
478 /* flags */ D_DISK,
479 /* port */ NULL,
480 /* autoq */ 0,
481
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482 /* open */ daopen,
483 /* close */ daclose,
484 /* read */ physread,
485 /* write */ physwrite,
486 /* ioctl */ daioctl,
487 /* poll */ nopoll,
488 /* mmap */ nommap,
489 /* strategy */ dastrategy,
984263bc 490 /* dump */ dadump,
fabb8ceb 491 /* psize */ nopsize
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492};
493
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494static SLIST_HEAD(,da_softc) softc_list;
495static struct extend_array *daperiphs;
496
497static int
41c20dac 498daopen(dev_t dev, int flags, int fmt, struct thread *td)
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499{
500 struct cam_periph *periph;
501 struct da_softc *softc;
502 struct disklabel *label;
503 int unit;
504 int part;
505 int error;
506 int s;
507
508 unit = dkunit(dev);
509 part = dkpart(dev);
510 periph = cam_extend_get(daperiphs, unit);
511 if (periph == NULL)
512 return (ENXIO);
513
514 softc = (struct da_softc *)periph->softc;
515
516 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
517 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev),
518 unit, part));
519
377d4740 520 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
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521 return (error); /* error code from tsleep */
522 }
523
524 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
525 return(ENXIO);
526 softc->flags |= DA_FLAG_OPEN;
527
528 s = splsoftcam();
529 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
530 /* Invalidate our pack information. */
531 disk_invalidate(&softc->disk);
532 softc->flags &= ~DA_FLAG_PACK_INVALID;
533 }
534 splx(s);
535
536 /* Do a read capacity */
537 {
538 struct scsi_read_capacity_data *rcap;
539 union ccb *ccb;
540
541 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
542 M_TEMP,
543 M_WAITOK);
544
545 ccb = cam_periph_getccb(periph, /*priority*/1);
546 scsi_read_capacity(&ccb->csio,
547 /*retries*/1,
548 /*cbfncp*/dadone,
549 MSG_SIMPLE_Q_TAG,
550 rcap,
551 SSD_FULL_SIZE,
552 /*timeout*/60000);
553 ccb->ccb_h.ccb_bp = NULL;
554
555 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
556 /*sense_flags*/SF_RETRY_UA |
557 SF_RETRY_SELTO,
558 &softc->device_stats);
559
560 xpt_release_ccb(ccb);
561
562 if (error == 0) {
563 dasetgeom(periph, rcap);
564 }
565
566 free(rcap, M_TEMP);
567 }
568
569 if (error == 0) {
570 struct ccb_getdev cgd;
571
572 /* Build label for whole disk. */
573 label = &softc->disk.d_label;
574 bzero(label, sizeof(*label));
575 label->d_type = DTYPE_SCSI;
576
577 /*
578 * Grab the inquiry data to get the vendor and product names.
579 * Put them in the typename and packname for the label.
580 */
581 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
582 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
583 xpt_action((union ccb *)&cgd);
584
585 strncpy(label->d_typename, cgd.inq_data.vendor,
586 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
587 strncpy(label->d_packname, cgd.inq_data.product,
588 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
589
590 label->d_secsize = softc->params.secsize;
591 label->d_nsectors = softc->params.secs_per_track;
592 label->d_ntracks = softc->params.heads;
593 label->d_ncylinders = softc->params.cylinders;
594 label->d_secpercyl = softc->params.heads
595 * softc->params.secs_per_track;
596 label->d_secperunit = softc->params.sectors;
597
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598 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
599 (softc->quirks & DA_Q_NO_PREVENT) == 0)
984263bc 600 daprevent(periph, PR_PREVENT);
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601
602 /*
603 * Check to see whether or not the blocksize is set yet.
604 * If it isn't, set it and then clear the blocksize
605 * unavailable flag for the device statistics.
606 */
607 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){
608 softc->device_stats.block_size = softc->params.secsize;
609 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
610 }
611 }
612
613 if (error != 0) {
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614 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
615 (softc->quirks & DA_Q_NO_PREVENT) == 0)
984263bc 616 daprevent(periph, PR_ALLOW);
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617 softc->flags &= ~DA_FLAG_OPEN;
618 cam_periph_release(periph);
619 }
620 cam_periph_unlock(periph);
621 return (error);
622}
623
624static int
41c20dac 625daclose(dev_t dev, int flag, int fmt, struct thread *td)
984263bc
MD
626{
627 struct cam_periph *periph;
628 struct da_softc *softc;
629 int unit;
630 int error;
631
632 unit = dkunit(dev);
633 periph = cam_extend_get(daperiphs, unit);
634 if (periph == NULL)
635 return (ENXIO);
636
637 softc = (struct da_softc *)periph->softc;
638
377d4740 639 if ((error = cam_periph_lock(periph, 0)) != 0) {
984263bc
MD
640 return (error); /* error code from tsleep */
641 }
642
643 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
644 union ccb *ccb;
645
646 ccb = cam_periph_getccb(periph, /*priority*/1);
647
648 scsi_synchronize_cache(&ccb->csio,
649 /*retries*/1,
650 /*cbfcnp*/dadone,
651 MSG_SIMPLE_Q_TAG,
652 /*begin_lba*/0,/* Cover the whole disk */
653 /*lb_count*/0,
654 SSD_FULL_SIZE,
655 5 * 60 * 1000);
656
657 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
658 /*sense_flags*/SF_RETRY_UA,
659 &softc->device_stats);
660
661 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
662 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
663 CAM_SCSI_STATUS_ERROR) {
664 int asc, ascq;
665 int sense_key, error_code;
666
667 scsi_extract_sense(&ccb->csio.sense_data,
668 &error_code,
669 &sense_key,
670 &asc, &ascq);
671 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
672 scsi_sense_print(&ccb->csio);
673 } else {
674 xpt_print_path(periph->path);
675 printf("Synchronize cache failed, status "
676 "== 0x%x, scsi status == 0x%x\n",
677 ccb->csio.ccb_h.status,
678 ccb->csio.scsi_status);
679 }
680 }
681
682 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
683 cam_release_devq(ccb->ccb_h.path,
684 /*relsim_flags*/0,
685 /*reduction*/0,
686 /*timeout*/0,
687 /*getcount_only*/0);
688
689 xpt_release_ccb(ccb);
690
691 }
692
693 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
62ade751
MD
694 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
695 daprevent(periph, PR_ALLOW);
984263bc
MD
696 /*
697 * If we've got removeable media, mark the blocksize as
698 * unavailable, since it could change when new media is
699 * inserted.
700 */
701 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
702 }
703
704 softc->flags &= ~DA_FLAG_OPEN;
705 cam_periph_unlock(periph);
706 cam_periph_release(periph);
707 return (0);
708}
709
710/*
711 * Actually translate the requested transfer into one the physical driver
712 * can understand. The transfer is described by a buf and will include
713 * only one physical transfer.
714 */
715static void
716dastrategy(struct buf *bp)
717{
718 struct cam_periph *periph;
719 struct da_softc *softc;
720 u_int unit;
721 u_int part;
722 int s;
723
724 unit = dkunit(bp->b_dev);
725 part = dkpart(bp->b_dev);
726 periph = cam_extend_get(daperiphs, unit);
727 if (periph == NULL) {
728 bp->b_error = ENXIO;
729 goto bad;
730 }
731 softc = (struct da_softc *)periph->softc;
732#if 0
733 /*
734 * check it's not too big a transfer for our adapter
735 */
736 scsi_minphys(bp,&sd_switch);
737#endif
738
739 /*
740 * Mask interrupts so that the pack cannot be invalidated until
741 * after we are in the queue. Otherwise, we might not properly
742 * clean up one of the buffers.
743 */
744 s = splbio();
745
746 /*
747 * If the device has been made invalid, error out
748 */
749 if ((softc->flags & DA_FLAG_PACK_INVALID)) {
750 splx(s);
751 bp->b_error = ENXIO;
752 goto bad;
753 }
754
755 /*
756 * Place it in the queue of disk activities for this disk
757 */
758 bufqdisksort(&softc->buf_queue, bp);
759
760 splx(s);
761
762 /*
763 * Schedule ourselves for performing the work.
764 */
765 xpt_schedule(periph, /* XXX priority */1);
766
767 return;
768bad:
769 bp->b_flags |= B_ERROR;
770
771 /*
772 * Correctly set the buf to indicate a completed xfer
773 */
774 bp->b_resid = bp->b_bcount;
775 biodone(bp);
776 return;
777}
778
779/* For 2.2-stable support */
780#ifndef ENOIOCTL
781#define ENOIOCTL -1
782#endif
783
784static int
41c20dac 785daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
984263bc
MD
786{
787 struct cam_periph *periph;
788 struct da_softc *softc;
789 int unit;
790 int error;
791
792 unit = dkunit(dev);
793 periph = cam_extend_get(daperiphs, unit);
794 if (periph == NULL)
795 return (ENXIO);
796
797 softc = (struct da_softc *)periph->softc;
798
799 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n"));
800
377d4740 801 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
984263bc
MD
802 return (error); /* error code from tsleep */
803 }
804
805 error = cam_periph_ioctl(periph, cmd, addr, daerror);
806
807 cam_periph_unlock(periph);
808
809 return (error);
810}
811
812static int
813dadump(dev_t dev)
814{
815 struct cam_periph *periph;
816 struct da_softc *softc;
817 u_int unit;
818 u_int part;
819 u_int secsize;
820 u_int num; /* number of sectors to write */
821 u_int blknum;
822 long blkcnt;
62ade751 823 vm_paddr_t addr;
984263bc
MD
824 struct ccb_scsiio csio;
825 int dumppages = MAXDUMPPGS;
826 int error;
827 int i;
828
829 /* toss any characters present prior to dump */
830 while (cncheckc() != -1)
831 ;
832
833 unit = dkunit(dev);
834 part = dkpart(dev);
835 periph = cam_extend_get(daperiphs, unit);
836 if (periph == NULL) {
837 return (ENXIO);
838 }
839 softc = (struct da_softc *)periph->softc;
840
841 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
842 return (ENXIO);
843
844 error = disk_dumpcheck(dev, &num, &blknum, &secsize);
845 if (error)
846 return (error);
847
848 addr = 0; /* starting address */
849 blkcnt = howmany(PAGE_SIZE, secsize);
850
851 while (num > 0) {
852 caddr_t va = NULL;
853
854 if ((num / blkcnt) < dumppages)
855 dumppages = num / blkcnt;
856
857 for (i = 0; i < dumppages; ++i) {
62ade751 858 vm_paddr_t a = addr + (i * PAGE_SIZE);
984263bc
MD
859 if (is_physical_memory(a))
860 va = pmap_kenter_temporary(trunc_page(a), i);
861 else
862 va = pmap_kenter_temporary(trunc_page(0), i);
863 }
864
865 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
866 csio.ccb_h.ccb_state = DA_CCB_DUMP;
867 scsi_read_write(&csio,
868 /*retries*/1,
869 dadone,
870 MSG_ORDERED_Q_TAG,
871 /*read*/FALSE,
872 /*byte2*/0,
873 /*minimum_cmd_size*/ softc->minimum_cmd_size,
874 blknum,
875 blkcnt * dumppages,
876 /*data_ptr*/(u_int8_t *) va,
877 /*dxfer_len*/blkcnt * secsize * dumppages,
878 /*sense_len*/SSD_FULL_SIZE,
879 DA_DEFAULT_TIMEOUT * 1000);
880 xpt_polled_action((union ccb *)&csio);
881
882 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
883 printf("Aborting dump due to I/O error.\n");
884 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
885 CAM_SCSI_STATUS_ERROR)
886 scsi_sense_print(&csio);
887 else
888 printf("status == 0x%x, scsi status == 0x%x\n",
889 csio.ccb_h.status, csio.scsi_status);
890 return(EIO);
891 }
892
893 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0)
894 return (EINTR);
895
896 /* update block count */
897 num -= blkcnt * dumppages;
898 blknum += blkcnt * dumppages;
899 addr += PAGE_SIZE * dumppages;
900 }
901
902 /*
903 * Sync the disk cache contents to the physical media.
904 */
905 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
906
907 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
908 csio.ccb_h.ccb_state = DA_CCB_DUMP;
909 scsi_synchronize_cache(&csio,
910 /*retries*/1,
911 /*cbfcnp*/dadone,
912 MSG_SIMPLE_Q_TAG,
913 /*begin_lba*/0,/* Cover the whole disk */
914 /*lb_count*/0,
915 SSD_FULL_SIZE,
916 5 * 60 * 1000);
917 xpt_polled_action((union ccb *)&csio);
918
919 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
920 if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
921 CAM_SCSI_STATUS_ERROR) {
922 int asc, ascq;
923 int sense_key, error_code;
924
925 scsi_extract_sense(&csio.sense_data,
926 &error_code,
927 &sense_key,
928 &asc, &ascq);
929 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
930 scsi_sense_print(&csio);
931 } else {
932 xpt_print_path(periph->path);
933 printf("Synchronize cache failed, status "
934 "== 0x%x, scsi status == 0x%x\n",
935 csio.ccb_h.status, csio.scsi_status);
936 }
937 }
938 }
939 return (0);
940}
941
942static void
943dainit(void)
944{
945 cam_status status;
946 struct cam_path *path;
947
948 /*
949 * Create our extend array for storing the devices we attach to.
950 */
951 daperiphs = cam_extend_new();
952 SLIST_INIT(&softc_list);
953 if (daperiphs == NULL) {
954 printf("da: Failed to alloc extend array!\n");
955 return;
956 }
957
958 /*
959 * Install a global async callback. This callback will
960 * receive async callbacks like "new device found".
961 */
962 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
963 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
964
965 if (status == CAM_REQ_CMP) {
966 struct ccb_setasync csa;
967
968 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
969 csa.ccb_h.func_code = XPT_SASYNC_CB;
970 csa.event_enable = AC_FOUND_DEVICE;
971 csa.callback = daasync;
972 csa.callback_arg = NULL;
973 xpt_action((union ccb *)&csa);
974 status = csa.ccb_h.status;
975 xpt_free_path(path);
976 }
977
978 if (status != CAM_REQ_CMP) {
979 printf("da: Failed to attach master async callback "
980 "due to status 0x%x!\n", status);
981 } else {
982
983 /*
984 * Schedule a periodic event to occasionally send an
985 * ordered tag to a device.
986 */
987 timeout(dasendorderedtag, NULL,
988 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL);
989
990 /* Register our shutdown event handler */
991 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
992 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
993 printf("dainit: shutdown event registration failed!\n");
994 }
995}
996
997static void
998daoninvalidate(struct cam_periph *periph)
999{
1000 int s;
1001 struct da_softc *softc;
1002 struct buf *q_bp;
1003 struct ccb_setasync csa;
1004
1005 softc = (struct da_softc *)periph->softc;
1006
1007 /*
1008 * De-register any async callbacks.
1009 */
1010 xpt_setup_ccb(&csa.ccb_h, periph->path,
1011 /* priority */ 5);
1012 csa.ccb_h.func_code = XPT_SASYNC_CB;
1013 csa.event_enable = 0;
1014 csa.callback = daasync;
1015 csa.callback_arg = periph;
1016 xpt_action((union ccb *)&csa);
1017
1018 softc->flags |= DA_FLAG_PACK_INVALID;
1019
1020 /*
1021 * Although the oninvalidate() routines are always called at
1022 * splsoftcam, we need to be at splbio() here to keep the buffer
1023 * queue from being modified while we traverse it.
1024 */
1025 s = splbio();
1026
1027 /*
1028 * Return all queued I/O with ENXIO.
1029 * XXX Handle any transactions queued to the card
1030 * with XPT_ABORT_CCB.
1031 */
1032 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
1033 bufq_remove(&softc->buf_queue, q_bp);
1034 q_bp->b_resid = q_bp->b_bcount;
1035 q_bp->b_error = ENXIO;
1036 q_bp->b_flags |= B_ERROR;
1037 biodone(q_bp);
1038 }
1039 splx(s);
1040
1041 SLIST_REMOVE(&softc_list, softc, da_softc, links);
1042
1043 xpt_print_path(periph->path);
1044 printf("lost device\n");
1045}
1046
1047static void
1048dacleanup(struct cam_periph *periph)
1049{
1050 struct da_softc *softc;
1051
1052 softc = (struct da_softc *)periph->softc;
1053
1054 devstat_remove_entry(&softc->device_stats);
1055 cam_extend_release(daperiphs, periph->unit_number);
1056 xpt_print_path(periph->path);
1057 printf("removing device entry\n");
62ade751
MD
1058 /*
1059 * If we can't free the sysctl tree, oh well...
1060 */
1061 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1062 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1063 xpt_print_path(periph->path);
1064 printf("can't remove sysctl context\n");
1065 }
984263bc 1066 if (softc->disk.d_dev) {
335dda38 1067 disk_destroy(&softc->disk);
984263bc
MD
1068 }
1069 free(softc, M_DEVBUF);
1070}
1071
1072static void
1073daasync(void *callback_arg, u_int32_t code,
1074 struct cam_path *path, void *arg)
1075{
1076 struct cam_periph *periph;
1077
1078 periph = (struct cam_periph *)callback_arg;
1079 switch (code) {
1080 case AC_FOUND_DEVICE:
1081 {
1082 struct ccb_getdev *cgd;
1083 cam_status status;
1084
1085 cgd = (struct ccb_getdev *)arg;
1086
1087 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1088 && SID_TYPE(&cgd->inq_data) != T_RBC
1089 && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1090 break;
1091
1092 /*
1093 * Allocate a peripheral instance for
1094 * this device and start the probe
1095 * process.
1096 */
1097 status = cam_periph_alloc(daregister, daoninvalidate,
1098 dacleanup, dastart,
1099 "da", CAM_PERIPH_BIO,
1100 cgd->ccb_h.path, daasync,
1101 AC_FOUND_DEVICE, cgd);
1102
1103 if (status != CAM_REQ_CMP
1104 && status != CAM_REQ_INPROG)
1105 printf("daasync: Unable to attach to new device "
1106 "due to status 0x%x\n", status);
1107 break;
1108 }
1109 case AC_SENT_BDR:
1110 case AC_BUS_RESET:
1111 {
1112 struct da_softc *softc;
1113 struct ccb_hdr *ccbh;
1114 int s;
1115
1116 softc = (struct da_softc *)periph->softc;
1117 s = splsoftcam();
1118 /*
1119 * Don't fail on the expected unit attention
1120 * that will occur.
1121 */
1122 softc->flags |= DA_FLAG_RETRY_UA;
1123 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
1124 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
1125 ccbh->ccb_state |= DA_CCB_RETRY_UA;
1126 splx(s);
1127 /* FALLTHROUGH*/
1128 }
1129 default:
1130 cam_periph_async(periph, code, path, arg);
1131 break;
1132 }
1133}
1134
62ade751
MD
1135static void
1136dasysctlinit(void *context, int pending)
1137{
1138 struct cam_periph *periph;
1139 struct da_softc *softc;
1140 char tmpstr[80], tmpstr2[80];
1141
1142 periph = (struct cam_periph *)context;
1143 softc = (struct da_softc *)periph->softc;
1144
1145 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1146 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1147
1148 sysctl_ctx_init(&softc->sysctl_ctx);
1149 softc->flags |= DA_FLAG_SCTX_INIT;
1150 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1151 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1152 CTLFLAG_RD, 0, tmpstr);
1153 if (softc->sysctl_tree == NULL) {
1154 printf("dasysctlinit: unable to allocate sysctl tree\n");
1155 return;
1156 }
1157
1158 /*
1159 * Now register the sysctl handler, so the user can the value on
1160 * the fly.
1161 */
1162 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
1163 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1164 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1165 "Minimum CDB size");
1166}
1167
1168static int
1169dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1170{
1171 int error, value;
1172
1173 value = *(int *)arg1;
1174
1175 error = sysctl_handle_int(oidp, &value, 0, req);
1176
1177 if ((error != 0)
1178 || (req->newptr == NULL))
1179 return (error);
1180
1181 /*
1182 * Acceptable values here are 6, 10 or 12. It's possible we may
1183 * support a 16 byte minimum command size in the future, since
1184 * there are now READ(16) and WRITE(16) commands defined in the
1185 * SBC-2 spec.
1186 */
1187 if (value < 6)
1188 value = 6;
1189 else if ((value > 6)
1190 && (value <= 10))
1191 value = 10;
1192 else if (value > 10)
1193 value = 12;
1194
1195 *(int *)arg1 = value;
1196
1197 return (0);
1198}
1199
984263bc
MD
1200static cam_status
1201daregister(struct cam_periph *periph, void *arg)
1202{
1203 int s;
1204 struct da_softc *softc;
1205 struct ccb_setasync csa;
62ade751 1206 struct ccb_pathinq cpi;
984263bc 1207 struct ccb_getdev *cgd;
62ade751 1208 char tmpstr[80];
984263bc
MD
1209 caddr_t match;
1210
1211 cgd = (struct ccb_getdev *)arg;
1212 if (periph == NULL) {
1213 printf("daregister: periph was NULL!!\n");
1214 return(CAM_REQ_CMP_ERR);
1215 }
1216
1217 if (cgd == NULL) {
1218 printf("daregister: no getdev CCB, can't register device\n");
1219 return(CAM_REQ_CMP_ERR);
1220 }
1221
1222 softc = (struct da_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
1223
1224 if (softc == NULL) {
1225 printf("daregister: Unable to probe new device. "
1226 "Unable to allocate softc\n");
1227 return(CAM_REQ_CMP_ERR);
1228 }
1229
1230 bzero(softc, sizeof(*softc));
1231 LIST_INIT(&softc->pending_ccbs);
1232 softc->state = DA_STATE_PROBE;
1233 bufq_init(&softc->buf_queue);
1234 if (SID_IS_REMOVABLE(&cgd->inq_data))
1235 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1236 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1237 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1238
1239 periph->softc = softc;
1240
1241 cam_extend_set(daperiphs, periph->unit_number, periph);
1242
1243 /*
1244 * See if this device has any quirks.
1245 */
1246 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1247 (caddr_t)da_quirk_table,
1248 sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1249 sizeof(*da_quirk_table), scsi_inquiry_match);
1250
1251 if (match != NULL)
1252 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1253 else
1254 softc->quirks = DA_Q_NONE;
1255
62ade751
MD
1256 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1257
1258 /* Check if the SIM does not want 6 byte commands */
1259 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
1260 cpi.ccb_h.func_code = XPT_PATH_INQ;
1261 xpt_action((union ccb *)&cpi);
1262 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1263 softc->quirks |= DA_Q_NO_6_BYTE;
1264
1265 /*
1266 * RBC devices don't have to support READ(6), only READ(10).
1267 */
984263bc
MD
1268 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1269 softc->minimum_cmd_size = 10;
1270 else
1271 softc->minimum_cmd_size = 6;
1272
62ade751
MD
1273 /*
1274 * Load the user's default, if any.
1275 */
1276 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1277 periph->unit_number);
1278 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1279
1280 /*
1281 * 6, 10 and 12 are the currently permissible values.
1282 */
1283 if (softc->minimum_cmd_size < 6)
1284 softc->minimum_cmd_size = 6;
1285 else if ((softc->minimum_cmd_size > 6)
1286 && (softc->minimum_cmd_size <= 10))
1287 softc->minimum_cmd_size = 10;
1288 else if (softc->minimum_cmd_size > 12)
1289 softc->minimum_cmd_size = 12;
1290
984263bc
MD
1291 /*
1292 * Block our timeout handler while we
1293 * add this softc to the dev list.
1294 */
1295 s = splsoftclock();
1296 SLIST_INSERT_HEAD(&softc_list, softc, links);
1297 splx(s);
1298
1299 /*
1300 * The DA driver supports a blocksize, but
1301 * we don't know the blocksize until we do
1302 * a read capacity. So, set a flag to
1303 * indicate that the blocksize is
1304 * unavailable right now. We'll clear the
1305 * flag as soon as we've done a read capacity.
1306 */
1307 devstat_add_entry(&softc->device_stats, "da",
1308 periph->unit_number, 0,
1309 DEVSTAT_BS_UNAVAILABLE,
1310 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI,
1311 DEVSTAT_PRIORITY_DISK);
1312
1313 /*
1314 * Register this media as a disk
1315 */
335dda38 1316 disk_create(periph->unit_number, &softc->disk, 0, &da_cdevsw);
984263bc
MD
1317
1318 /*
1319 * Add async callbacks for bus reset and
1320 * bus device reset calls. I don't bother
1321 * checking if this fails as, in most cases,
1322 * the system will function just fine without
1323 * them and the only alternative would be to
1324 * not attach the device on failure.
1325 */
1326 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5);
1327 csa.ccb_h.func_code = XPT_SASYNC_CB;
1328 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
1329 csa.callback = daasync;
1330 csa.callback_arg = periph;
1331 xpt_action((union ccb *)&csa);
1332 /*
1333 * Lock this peripheral until we are setup.
1334 * This first call can't block
1335 */
377d4740 1336 (void)cam_periph_lock(periph, 0);
984263bc
MD
1337 xpt_schedule(periph, /*priority*/5);
1338
1339 return(CAM_REQ_CMP);
1340}
1341
1342static void
1343dastart(struct cam_periph *periph, union ccb *start_ccb)
1344{
1345 struct da_softc *softc;
1346
1347 softc = (struct da_softc *)periph->softc;
1348
1349
1350 switch (softc->state) {
1351 case DA_STATE_NORMAL:
1352 {
1353 /* Pull a buffer from the queue and get going on it */
1354 struct buf *bp;
1355 int s;
1356
1357 /*
1358 * See if there is a buf with work for us to do..
1359 */
1360 s = splbio();
1361 bp = bufq_first(&softc->buf_queue);
1362 if (periph->immediate_priority <= periph->pinfo.priority) {
1363 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1364 ("queuing for immediate ccb\n"));
1365 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1366 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1367 periph_links.sle);
1368 periph->immediate_priority = CAM_PRIORITY_NONE;
1369 splx(s);
1370 wakeup(&periph->ccb_list);
1371 } else if (bp == NULL) {
1372 splx(s);
1373 xpt_release_ccb(start_ccb);
1374 } else {
1375 int oldspl;
1376 u_int8_t tag_code;
1377
1378 bufq_remove(&softc->buf_queue, bp);
1379
1380 devstat_start_transaction(&softc->device_stats);
1381
1382 if ((bp->b_flags & B_ORDERED) != 0
1383 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1384 softc->flags &= ~DA_FLAG_NEED_OTAG;
1385 softc->ordered_tag_count++;
1386 tag_code = MSG_ORDERED_Q_TAG;
1387 } else {
1388 tag_code = MSG_SIMPLE_Q_TAG;
1389 }
984263bc
MD
1390 scsi_read_write(&start_ccb->csio,
1391 /*retries*/da_retry_count,
1392 dadone,
1393 tag_code,
1394 bp->b_flags & B_READ,
1395 /*byte2*/0,
1396 softc->minimum_cmd_size,
1397 bp->b_pblkno,
1398 bp->b_bcount / softc->params.secsize,
1399 bp->b_data,
1400 bp->b_bcount,
1401 /*sense_len*/SSD_FULL_SIZE,
1402 da_default_timeout * 1000);
1403 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1404
1405 /*
1406 * Block out any asyncronous callbacks
1407 * while we touch the pending ccb list.
1408 */
1409 oldspl = splcam();
1410 LIST_INSERT_HEAD(&softc->pending_ccbs,
1411 &start_ccb->ccb_h, periph_links.le);
1412 splx(oldspl);
1413
1414 /* We expect a unit attention from this device */
1415 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1416 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1417 softc->flags &= ~DA_FLAG_RETRY_UA;
1418 }
1419
1420 start_ccb->ccb_h.ccb_bp = bp;
1421 bp = bufq_first(&softc->buf_queue);
1422 splx(s);
1423
1424 xpt_action(start_ccb);
1425 }
1426
1427 if (bp != NULL) {
1428 /* Have more work to do, so ensure we stay scheduled */
1429 xpt_schedule(periph, /* XXX priority */1);
1430 }
1431 break;
1432 }
1433 case DA_STATE_PROBE:
1434 {
1435 struct ccb_scsiio *csio;
1436 struct scsi_read_capacity_data *rcap;
1437
1438 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap),
1439 M_TEMP,
1440 M_NOWAIT);
1441 if (rcap == NULL) {
1442 printf("dastart: Couldn't malloc read_capacity data\n");
1443 /* da_free_periph??? */
1444 break;
1445 }
1446 csio = &start_ccb->csio;
1447 scsi_read_capacity(csio,
1448 /*retries*/4,
1449 dadone,
1450 MSG_SIMPLE_Q_TAG,
1451 rcap,
1452 SSD_FULL_SIZE,
1453 /*timeout*/5000);
1454 start_ccb->ccb_h.ccb_bp = NULL;
1455 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1456 xpt_action(start_ccb);
1457 break;
1458 }
1459 }
1460}
1461
1462static int
1463cmd6workaround(union ccb *ccb)
1464{
1465 struct scsi_rw_6 cmd6;
1466 struct scsi_rw_10 *cmd10;
1467 struct da_softc *softc;
1468 u_int8_t *cdb;
1469 int frozen;
1470
1471 cdb = ccb->csio.cdb_io.cdb_bytes;
1472
1473 /* Translation only possible if CDB is an array and cmd is R/W6 */
1474 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1475 (*cdb != READ_6 && *cdb != WRITE_6))
1476 return 0;
1477
1478 xpt_print_path(ccb->ccb_h.path);
1479 printf("READ(6)/WRITE(6) not supported, "
1480 "increasing minimum_cmd_size to 10.\n");
1481 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1482 softc->minimum_cmd_size = 10;
1483
1484 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1485 cmd10 = (struct scsi_rw_10 *)cdb;
1486 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1487 cmd10->byte2 = 0;
1488 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1489 cmd10->reserved = 0;
1490 scsi_ulto2b(cmd6.length, cmd10->length);
1491 cmd10->control = cmd6.control;
1492 ccb->csio.cdb_len = sizeof(*cmd10);
1493
1494 /* Requeue request, unfreezing queue if necessary */
1495 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1496 ccb->ccb_h.status = CAM_REQUEUE_REQ;
1497 xpt_action(ccb);
1498 if (frozen) {
1499 cam_release_devq(ccb->ccb_h.path,
1500 /*relsim_flags*/0,
1501 /*reduction*/0,
1502 /*timeout*/0,
1503 /*getcount_only*/0);
1504 }
1505 return (ERESTART);
1506}
1507
1508static void
1509dadone(struct cam_periph *periph, union ccb *done_ccb)
1510{
1511 struct da_softc *softc;
1512 struct ccb_scsiio *csio;
1513
1514 softc = (struct da_softc *)periph->softc;
1515 csio = &done_ccb->csio;
1516 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1517 case DA_CCB_BUFFER_IO:
1518 {
1519 struct buf *bp;
1520 int oldspl;
1521
1522 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
1523 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1524 int error;
1525 int s;
1526 int sf;
1527
1528 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1529 sf = SF_RETRY_UA;
1530 else
1531 sf = 0;
1532
1533 /* Retry selection timeouts */
1534 sf |= SF_RETRY_SELTO;
1535
1536 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) {
1537 /*
1538 * A retry was scheuled, so
1539 * just return.
1540 */
1541 return;
1542 }
1543 if (error != 0) {
1544 struct buf *q_bp;
1545
1546 s = splbio();
1547
1548 if (error == ENXIO) {
1549 /*
1550 * Catastrophic error. Mark our pack as
1551 * invalid.
1552 */
1553 /* XXX See if this is really a media
1554 * change first.
1555 */
1556 xpt_print_path(periph->path);
1557 printf("Invalidating pack\n");
1558 softc->flags |= DA_FLAG_PACK_INVALID;
1559 }
1560
1561 /*
1562 * return all queued I/O with EIO, so that
1563 * the client can retry these I/Os in the
1564 * proper order should it attempt to recover.
1565 */
1566 while ((q_bp = bufq_first(&softc->buf_queue))
1567 != NULL) {
1568 bufq_remove(&softc->buf_queue, q_bp);
1569 q_bp->b_resid = q_bp->b_bcount;
1570 q_bp->b_error = EIO;
1571 q_bp->b_flags |= B_ERROR;
1572 biodone(q_bp);
1573 }
1574 splx(s);
1575 bp->b_error = error;
1576 bp->b_resid = bp->b_bcount;
1577 bp->b_flags |= B_ERROR;
1578 } else {
1579 bp->b_resid = csio->resid;
1580 bp->b_error = 0;
62ade751 1581 if (bp->b_resid != 0)
984263bc 1582 bp->b_flags |= B_ERROR;
984263bc
MD
1583 }
1584 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1585 cam_release_devq(done_ccb->ccb_h.path,
1586 /*relsim_flags*/0,
1587 /*reduction*/0,
1588 /*timeout*/0,
1589 /*getcount_only*/0);
1590 } else {
1591 bp->b_resid = csio->resid;
62ade751 1592 if (csio->resid > 0)
984263bc 1593 bp->b_flags |= B_ERROR;
984263bc
MD
1594 }
1595
1596 /*
1597 * Block out any asyncronous callbacks
1598 * while we touch the pending ccb list.
1599 */
1600 oldspl = splcam();
1601 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1602 splx(oldspl);
1603
1604 if (softc->device_stats.busy_count == 0)
1605 softc->flags |= DA_FLAG_WENT_IDLE;
1606
1607 devstat_end_transaction_buf(&softc->device_stats, bp);
1608 biodone(bp);
1609 break;
1610 }
1611 case DA_CCB_PROBE:
1612 {
1613 struct scsi_read_capacity_data *rdcap;
1614 char announce_buf[80];
1615
1616 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1617
1618 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1619 struct disk_params *dp;
1620
1621 dasetgeom(periph, rdcap);
1622 dp = &softc->params;
1623 snprintf(announce_buf, sizeof(announce_buf),
1624 "%luMB (%u %u byte sectors: %dH %dS/T %dC)",
1625 (unsigned long) (((u_int64_t)dp->secsize *
1626 dp->sectors) / (1024*1024)), dp->sectors,
1627 dp->secsize, dp->heads, dp->secs_per_track,
1628 dp->cylinders);
1629 } else {
1630 int error;
1631
1632 announce_buf[0] = '\0';
1633
1634 /*
1635 * Retry any UNIT ATTENTION type errors. They
1636 * are expected at boot.
1637 */
1638 error = daerror(done_ccb, 0, SF_RETRY_UA |
1639 SF_RETRY_SELTO | SF_NO_PRINT);
1640 if (error == ERESTART) {
1641 /*
1642 * A retry was scheuled, so
1643 * just return.
1644 */
1645 return;
1646 } else if (error != 0) {
1647 struct scsi_sense_data *sense;
1648 int asc, ascq;
1649 int sense_key, error_code;
1650 int have_sense;
1651 cam_status status;
1652 struct ccb_getdev cgd;
1653
1654 /* Don't wedge this device's queue */
1655 cam_release_devq(done_ccb->ccb_h.path,
1656 /*relsim_flags*/0,
1657 /*reduction*/0,
1658 /*timeout*/0,
1659 /*getcount_only*/0);
1660
1661 status = done_ccb->ccb_h.status;
1662
1663 xpt_setup_ccb(&cgd.ccb_h,
1664 done_ccb->ccb_h.path,
1665 /* priority */ 1);
1666 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1667 xpt_action((union ccb *)&cgd);
1668
1669 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1670 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1671 || ((status & CAM_AUTOSNS_VALID) == 0))
1672 have_sense = FALSE;
1673 else
1674 have_sense = TRUE;
1675
1676 if (have_sense) {
1677 sense = &csio->sense_data;
1678 scsi_extract_sense(sense, &error_code,
1679 &sense_key,
1680 &asc, &ascq);
1681 }
1682 /*
1683 * Attach to anything that claims to be a
1684 * direct access or optical disk device,
1685 * as long as it doesn't return a "Logical
1686 * unit not supported" (0x25) error.
1687 */
1688 if ((have_sense) && (asc != 0x25)
1689 && (error_code == SSD_CURRENT_ERROR))
1690 snprintf(announce_buf,
1691 sizeof(announce_buf),
1692 "Attempt to query device "
1693 "size failed: %s, %s",
1694 scsi_sense_key_text[sense_key],
1695 scsi_sense_desc(asc,ascq,
1696 &cgd.inq_data));
1697 else {
1698 if (have_sense)
1699 scsi_sense_print(
1700 &done_ccb->csio);
1701 else {
1702 xpt_print_path(periph->path);
1703 printf("got CAM status %#x\n",
1704 done_ccb->ccb_h.status);
1705 }
1706
1707 xpt_print_path(periph->path);
1708 printf("fatal error, failed"
1709 " to attach to device\n");
1710
1711 /*
1712 * Free up resources.
1713 */
1714 cam_periph_invalidate(periph);
1715 }
1716 }
1717 }
1718 free(rdcap, M_TEMP);
62ade751 1719 if (announce_buf[0] != '\0') {
984263bc 1720 xpt_announce_periph(periph, announce_buf);
62ade751
MD
1721 /*
1722 * Create our sysctl variables, now that we know
1723 * we have successfully attached.
1724 */
1725 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1726 }
984263bc
MD
1727 softc->state = DA_STATE_NORMAL;
1728 /*
1729 * Since our peripheral may be invalidated by an error
1730 * above or an external event, we must release our CCB
1731 * before releasing the probe lock on the peripheral.
1732 * The peripheral will only go away once the last lock
1733 * is removed, and we need it around for the CCB release
1734 * operation.
1735 */
1736 xpt_release_ccb(done_ccb);
1737 cam_periph_unlock(periph);
1738 return;
1739 }
1740 case DA_CCB_WAITING:
1741 {
1742 /* Caller will release the CCB */
1743 wakeup(&done_ccb->ccb_h.cbfcnp);
1744 return;
1745 }
1746 case DA_CCB_DUMP:
1747 /* No-op. We're polling */
1748 return;
1749 default:
1750 break;
1751 }
1752 xpt_release_ccb(done_ccb);
1753}
1754
1755static int
1756daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1757{
1758 struct da_softc *softc;
1759 struct cam_periph *periph;
62ade751 1760 int error;
984263bc
MD
1761
1762 periph = xpt_path_periph(ccb->ccb_h.path);
1763 softc = (struct da_softc *)periph->softc;
1764
1765 /*
1766 * Automatically detect devices that do not support
1767 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1768 */
1769 error = 0;
62ade751
MD
1770 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1771 error = cmd6workaround(ccb);
1772 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1773 CAM_SCSI_STATUS_ERROR)
1774 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1775 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1776 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1777 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1778 int sense_key, error_code, asc, ascq;
1779
984263bc
MD
1780 scsi_extract_sense(&ccb->csio.sense_data,
1781 &error_code, &sense_key, &asc, &ascq);
1782 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1783 error = cmd6workaround(ccb);
1784 }
1785 if (error == ERESTART)
1786 return (ERESTART);
1787
1788 /*
1789 * XXX
1790 * Until we have a better way of doing pack validation,
1791 * don't treat UAs as errors.
1792 */
1793 sense_flags |= SF_RETRY_UA;
1794 return(cam_periph_error(ccb, cam_flags, sense_flags,
1795 &softc->saved_ccb));
1796}
1797
1798static void
1799daprevent(struct cam_periph *periph, int action)
1800{
1801 struct da_softc *softc;
1802 union ccb *ccb;
1803 int error;
1804
1805 softc = (struct da_softc *)periph->softc;
1806
1807 if (((action == PR_ALLOW)
1808 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1809 || ((action == PR_PREVENT)
1810 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1811 return;
1812 }
1813
1814 ccb = cam_periph_getccb(periph, /*priority*/1);
1815
1816 scsi_prevent(&ccb->csio,
1817 /*retries*/1,
1818 /*cbcfp*/dadone,
1819 MSG_SIMPLE_Q_TAG,
1820 action,
1821 SSD_FULL_SIZE,
1822 5000);
1823
1824 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
1825 /*sense_flags*/0, &softc->device_stats);
1826
1827 if (error == 0) {
1828 if (action == PR_ALLOW)
1829 softc->flags &= ~DA_FLAG_PACK_LOCKED;
1830 else
1831 softc->flags |= DA_FLAG_PACK_LOCKED;
1832 }
1833
1834 xpt_release_ccb(ccb);
1835}
1836
1837static void
1838dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap)
1839{
1840 struct ccb_calc_geometry ccg;
1841 struct da_softc *softc;
1842 struct disk_params *dp;
1843
1844 softc = (struct da_softc *)periph->softc;
1845
1846 dp = &softc->params;
1847 dp->secsize = scsi_4btoul(rdcap->length);
1848 dp->sectors = scsi_4btoul(rdcap->addr) + 1;
1849 /*
1850 * Have the controller provide us with a geometry
1851 * for this disk. The only time the geometry
1852 * matters is when we boot and the controller
1853 * is the only one knowledgeable enough to come
1854 * up with something that will make this a bootable
1855 * device.
1856 */
1857 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1);
1858 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
1859 ccg.block_size = dp->secsize;
1860 ccg.volume_size = dp->sectors;
1861 ccg.heads = 0;
1862 ccg.secs_per_track = 0;
1863 ccg.cylinders = 0;
1864 xpt_action((union ccb*)&ccg);
1865 dp->heads = ccg.heads;
1866 dp->secs_per_track = ccg.secs_per_track;
1867 dp->cylinders = ccg.cylinders;
1868}
1869
1870static void
1871dasendorderedtag(void *arg)
1872{
1873 struct da_softc *softc;
1874 int s;
1875
1876 for (softc = SLIST_FIRST(&softc_list);
1877 softc != NULL;
1878 softc = SLIST_NEXT(softc, links)) {
1879 s = splsoftcam();
1880 if ((softc->ordered_tag_count == 0)
1881 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
1882 softc->flags |= DA_FLAG_NEED_OTAG;
1883 }
1884 if (softc->device_stats.busy_count > 0)
1885 softc->flags &= ~DA_FLAG_WENT_IDLE;
1886
1887 softc->ordered_tag_count = 0;
1888 splx(s);
1889 }
1890 /* Queue us up again */
1891 timeout(dasendorderedtag, NULL,
1892 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL);
1893}
1894
1895/*
1896 * Step through all DA peripheral drivers, and if the device is still open,
1897 * sync the disk cache to physical media.
1898 */
1899static void
1900dashutdown(void * arg, int howto)
1901{
1902 struct cam_periph *periph;
1903 struct da_softc *softc;
1904
1905 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL;
1906 periph = TAILQ_NEXT(periph, unit_links)) {
1907 union ccb ccb;
1908 softc = (struct da_softc *)periph->softc;
1909
1910 /*
1911 * We only sync the cache if the drive is still open, and
1912 * if the drive is capable of it..
1913 */
1914 if (((softc->flags & DA_FLAG_OPEN) == 0)
1915 || (softc->quirks & DA_Q_NO_SYNC_CACHE))
1916 continue;
1917
1918 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1);
1919
1920 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
1921 scsi_synchronize_cache(&ccb.csio,
1922 /*retries*/1,
1923 /*cbfcnp*/dadone,
1924 MSG_SIMPLE_Q_TAG,
1925 /*begin_lba*/0, /* whole disk */
1926 /*lb_count*/0,
1927 SSD_FULL_SIZE,
1928 5 * 60 * 1000);
1929
1930 xpt_polled_action(&ccb);
1931
1932 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1933 if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
1934 CAM_SCSI_STATUS_ERROR)
1935 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
1936 int error_code, sense_key, asc, ascq;
1937
1938 scsi_extract_sense(&ccb.csio.sense_data,
1939 &error_code, &sense_key,
1940 &asc, &ascq);
1941
1942 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1943 scsi_sense_print(&ccb.csio);
1944 } else {
1945 xpt_print_path(periph->path);
1946 printf("Synchronize cache failed, status "
1947 "== 0x%x, scsi status == 0x%x\n",
1948 ccb.ccb_h.status, ccb.csio.scsi_status);
1949 }
1950 }
1951
1952 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1953 cam_release_devq(ccb.ccb_h.path,
1954 /*relsim_flags*/0,
1955 /*reduction*/0,
1956 /*timeout*/0,
1957 /*getcount_only*/0);
1958
1959 }
1960}
1961
1962#else /* !_KERNEL */
1963
1964/*
1965 * XXX This is only left out of the kernel build to silence warnings. If,
1966 * for some reason this function is used in the kernel, the ifdefs should
1967 * be moved so it is included both in the kernel and userland.
1968 */
1969void
1970scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
1971 void (*cbfcnp)(struct cam_periph *, union ccb *),
1972 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
1973 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
1974 u_int32_t timeout)
1975{
1976 struct scsi_format_unit *scsi_cmd;
1977
1978 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
1979 scsi_cmd->opcode = FORMAT_UNIT;
1980 scsi_cmd->byte2 = byte2;
1981 scsi_ulto2b(ileave, scsi_cmd->interleave);
1982
1983 cam_fill_csio(csio,
1984 retries,
1985 cbfcnp,
1986 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
1987 tag_action,
1988 data_ptr,
1989 dxfer_len,
1990 sense_len,
1991 sizeof(*scsi_cmd),
1992 timeout);
1993}
1994
1995#endif /* _KERNEL */