Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/cam/scsi/scsi_da.c
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1 /*- 2 * Implementation of SCSI Direct Access Peripheral driver for CAM. 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.171.2.8 2006/03/18 21:15:40 joerg Exp $"); 31 32 #ifdef _KERNEL 33 #include "opt_hw_wdog.h" 34 #endif /* _KERNEL */ 35 36 #include <sys/param.h> 37 38 #ifdef _KERNEL 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/bio.h> 42 #include <sys/sysctl.h> 43 #include <sys/taskqueue.h> 44 #endif /* _KERNEL */ 45 46 #include <sys/devicestat.h> 47 #include <sys/conf.h> 48 #include <sys/eventhandler.h> 49 #include <sys/malloc.h> 50 #include <sys/cons.h> 51 52 #include <machine/md_var.h> 53 54 #include <vm/vm.h> 55 #include <vm/pmap.h> 56 57 #include <geom/geom_disk.h> 58 59 #ifndef _KERNEL 60 #include <stdio.h> 61 #include <string.h> 62 #endif /* _KERNEL */ 63 64 #include <cam/cam.h> 65 #include <cam/cam_ccb.h> 66 #include <cam/cam_periph.h> 67 #include <cam/cam_xpt_periph.h> 68 69 #include <cam/scsi/scsi_message.h> 70 71 #ifndef _KERNEL 72 #include <cam/scsi/scsi_da.h> 73 #endif /* !_KERNEL */ 74 75 #ifdef _KERNEL 76 typedef enum { 77 DA_STATE_PROBE, 78 DA_STATE_PROBE2, 79 DA_STATE_NORMAL 80 } da_state; 81 82 typedef enum { 83 DA_FLAG_PACK_INVALID = 0x001, 84 DA_FLAG_NEW_PACK = 0x002, 85 DA_FLAG_PACK_LOCKED = 0x004, 86 DA_FLAG_PACK_REMOVABLE = 0x008, 87 DA_FLAG_TAGGED_QUEUING = 0x010, 88 DA_FLAG_NEED_OTAG = 0x020, 89 DA_FLAG_WENT_IDLE = 0x040, 90 DA_FLAG_RETRY_UA = 0x080, 91 DA_FLAG_OPEN = 0x100, 92 DA_FLAG_SCTX_INIT = 0x200 93 } da_flags; 94 95 typedef enum { 96 DA_Q_NONE = 0x00, 97 DA_Q_NO_SYNC_CACHE = 0x01, 98 DA_Q_NO_6_BYTE = 0x02, 99 DA_Q_NO_PREVENT = 0x04 100 } da_quirks; 101 102 typedef enum { 103 DA_CCB_PROBE = 0x01, 104 DA_CCB_PROBE2 = 0x02, 105 DA_CCB_BUFFER_IO = 0x03, 106 DA_CCB_WAITING = 0x04, 107 DA_CCB_DUMP = 0x05, 108 DA_CCB_TYPE_MASK = 0x0F, 109 DA_CCB_RETRY_UA = 0x10 110 } da_ccb_state; 111 112 /* Offsets into our private area for storing information */ 113 #define ccb_state ppriv_field0 114 #define ccb_bp ppriv_ptr1 115 116 struct disk_params { 117 u_int8_t heads; 118 u_int32_t cylinders; 119 u_int8_t secs_per_track; 120 u_int32_t secsize; /* Number of bytes/sector */ 121 u_int64_t sectors; /* total number sectors */ 122 }; 123 124 struct da_softc { 125 struct bio_queue_head bio_queue; 126 SLIST_ENTRY(da_softc) links; 127 LIST_HEAD(, ccb_hdr) pending_ccbs; 128 da_state state; 129 da_flags flags; 130 da_quirks quirks; 131 int minimum_cmd_size; 132 int ordered_tag_count; 133 int outstanding_cmds; 134 struct disk_params params; 135 struct disk *disk; 136 union ccb saved_ccb; 137 struct task sysctl_task; 138 struct sysctl_ctx_list sysctl_ctx; 139 struct sysctl_oid *sysctl_tree; 140 }; 141 142 struct da_quirk_entry { 143 struct scsi_inquiry_pattern inq_pat; 144 da_quirks quirks; 145 }; 146 147 static const char quantum[] = "QUANTUM"; 148 static const char microp[] = "MICROP"; 149 150 static struct da_quirk_entry da_quirk_table[] = 151 { 152 /* SPI, FC devices */ 153 { 154 /* 155 * Fujitsu M2513A MO drives. 156 * Tested devices: M2513A2 firmware versions 1200 & 1300. 157 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 158 * Reported by: W.Scholten <whs@xs4all.nl> 159 */ 160 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 161 /*quirks*/ DA_Q_NO_SYNC_CACHE 162 }, 163 { 164 /* See above. */ 165 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 166 /*quirks*/ DA_Q_NO_SYNC_CACHE 167 }, 168 { 169 /* 170 * This particular Fujitsu drive doesn't like the 171 * synchronize cache command. 172 * Reported by: Tom Jackson <toj@gorilla.net> 173 */ 174 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 175 /*quirks*/ DA_Q_NO_SYNC_CACHE 176 177 }, 178 { 179 /* 180 * This drive doesn't like the synchronize cache command 181 * either. Reported by: Matthew Jacob <mjacob@feral.com> 182 * in NetBSD PR kern/6027, August 24, 1998. 183 */ 184 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 185 /*quirks*/ DA_Q_NO_SYNC_CACHE 186 }, 187 { 188 /* 189 * This drive doesn't like the synchronize cache command 190 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 191 * (PR 8882). 192 */ 193 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 194 /*quirks*/ DA_Q_NO_SYNC_CACHE 195 }, 196 { 197 /* 198 * Doesn't like the synchronize cache command. 199 * Reported by: Blaz Zupan <blaz@gold.amis.net> 200 */ 201 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 202 /*quirks*/ DA_Q_NO_SYNC_CACHE 203 }, 204 { 205 /* 206 * Doesn't like the synchronize cache command. 207 * Reported by: Blaz Zupan <blaz@gold.amis.net> 208 */ 209 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 210 /*quirks*/ DA_Q_NO_SYNC_CACHE 211 }, 212 { 213 /* 214 * Doesn't like the synchronize cache command. 215 */ 216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 217 /*quirks*/ DA_Q_NO_SYNC_CACHE 218 }, 219 { 220 /* 221 * Doesn't like the synchronize cache command. 222 * Reported by: walter@pelissero.de 223 */ 224 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 225 /*quirks*/ DA_Q_NO_SYNC_CACHE 226 }, 227 { 228 /* 229 * Doesn't work correctly with 6 byte reads/writes. 230 * Returns illegal request, and points to byte 9 of the 231 * 6-byte CDB. 232 * Reported by: Adam McDougall <bsdx@spawnet.com> 233 */ 234 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 235 /*quirks*/ DA_Q_NO_6_BYTE 236 }, 237 { 238 /* See above. */ 239 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 240 /*quirks*/ DA_Q_NO_6_BYTE 241 }, 242 { 243 /* 244 * Doesn't like the synchronize cache command. 245 * Reported by: walter@pelissero.de 246 */ 247 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 248 /*quirks*/ DA_Q_NO_SYNC_CACHE 249 }, 250 { 251 /* 252 * The CISS RAID controllers do not support SYNC_CACHE 253 */ 254 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 255 /*quirks*/ DA_Q_NO_SYNC_CACHE 256 }, 257 /* USB mass storage devices supported by umass(4) */ 258 { 259 /* 260 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 261 * PR: kern/51675 262 */ 263 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 264 /*quirks*/ DA_Q_NO_SYNC_CACHE 265 }, 266 { 267 /* 268 * Power Quotient Int. (PQI) USB flash key 269 * PR: kern/53067 270 */ 271 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 272 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 273 }, 274 { 275 /* 276 * Creative Nomad MUVO mp3 player (USB) 277 * PR: kern/53094 278 */ 279 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 280 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 281 }, 282 { 283 /* 284 * Jungsoft NEXDISK USB flash key 285 * PR: kern/54737 286 */ 287 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 288 /*quirks*/ DA_Q_NO_SYNC_CACHE 289 }, 290 { 291 /* 292 * FreeDik USB Mini Data Drive 293 * PR: kern/54786 294 */ 295 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 296 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 297 }, 298 { 299 /* 300 * Sigmatel USB Flash MP3 Player 301 * PR: kern/57046 302 */ 303 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 304 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 305 }, 306 { 307 /* 308 * Neuros USB Digital Audio Computer 309 * PR: kern/63645 310 */ 311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 312 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 313 }, 314 { 315 /* 316 * SEAGRAND NP-900 MP3 Player 317 * PR: kern/64563 318 */ 319 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 320 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 321 }, 322 { 323 /* 324 * iRiver iFP MP3 player (with UMS Firmware) 325 * PR: kern/54881, i386/63941, kern/66124 326 */ 327 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 328 /*quirks*/ DA_Q_NO_SYNC_CACHE 329 }, 330 { 331 /* 332 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 333 * PR: kern/70158 334 */ 335 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 336 /*quirks*/ DA_Q_NO_SYNC_CACHE 337 }, 338 { 339 /* 340 * ZICPlay USB MP3 Player with FM 341 * PR: kern/75057 342 */ 343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 344 /*quirks*/ DA_Q_NO_SYNC_CACHE 345 }, 346 { 347 /* 348 * TEAC USB floppy mechanisms 349 */ 350 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 351 /*quirks*/ DA_Q_NO_SYNC_CACHE 352 }, 353 { 354 /* 355 * Kingston DataTraveler II+ USB Pen-Drive. 356 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 357 */ 358 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", "*"}, 359 /*quirks*/ DA_Q_NO_SYNC_CACHE 360 }, 361 { 362 /* 363 * Qware BeatZkey! Pro 364 * PR: usb/79164 365 */ 366 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 367 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 368 }, 369 { 370 /* 371 * Time DPA20B 1GB MP3 Player 372 * PR: usb/81846 373 */ 374 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 375 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 376 }, 377 { 378 /* 379 * Samsung USB key 128Mb 380 * PR: usb/90081 381 */ 382 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 383 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 384 }, 385 { 386 /* 387 * Kingston DataTraveler 2.0 USB Flash memory. 388 * PR: usb/89196 389 */ 390 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 391 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 392 }, 393 { 394 /* 395 * Creative MUVO Slim mp3 player (USB) 396 * PR: usb/86131 397 */ 398 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 399 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 400 }, 401 { 402 /* 403 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 404 * PR: usb/80487 405 */ 406 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 407 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 408 }, 409 { 410 /* 411 * SanDisk Micro Cruzer 128MB 412 * PR: usb/75970 413 */ 414 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 415 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 416 }, 417 { 418 /* 419 * TOSHIBA TransMemory USB sticks 420 * PR: kern/94660 421 */ 422 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 423 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 424 }, 425 { 426 /* 427 * PNY USB Flash keys 428 * PR: usb/75578, usb/72344, usb/65436 429 */ 430 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 431 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 432 }, 433 { 434 /* 435 * Genesys 6-in-1 Card Reader 436 * PR: usb/94647 437 */ 438 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 439 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 440 }, 441 }; 442 443 static disk_strategy_t dastrategy; 444 static dumper_t dadump; 445 static periph_init_t dainit; 446 static void daasync(void *callback_arg, u_int32_t code, 447 struct cam_path *path, void *arg); 448 static void dasysctlinit(void *context, int pending); 449 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 450 static periph_ctor_t daregister; 451 static periph_dtor_t dacleanup; 452 static periph_start_t dastart; 453 static periph_oninv_t daoninvalidate; 454 static void dadone(struct cam_periph *periph, 455 union ccb *done_ccb); 456 static int daerror(union ccb *ccb, u_int32_t cam_flags, 457 u_int32_t sense_flags); 458 static void daprevent(struct cam_periph *periph, int action); 459 static int dagetcapacity(struct cam_periph *periph); 460 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 461 uint64_t maxsector); 462 static timeout_t dasendorderedtag; 463 static void dashutdown(void *arg, int howto); 464 465 #ifndef DA_DEFAULT_TIMEOUT 466 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 467 #endif 468 469 #ifndef DA_DEFAULT_RETRY 470 #define DA_DEFAULT_RETRY 4 471 #endif 472 473 static int da_retry_count = DA_DEFAULT_RETRY; 474 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 475 476 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 477 "CAM Direct Access Disk driver"); 478 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 479 &da_retry_count, 0, "Normal I/O retry count"); 480 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 481 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 482 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 483 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 484 485 /* 486 * DA_ORDEREDTAG_INTERVAL determines how often, relative 487 * to the default timeout, we check to see whether an ordered 488 * tagged transaction is appropriate to prevent simple tag 489 * starvation. Since we'd like to ensure that there is at least 490 * 1/2 of the timeout length left for a starved transaction to 491 * complete after we've sent an ordered tag, we must poll at least 492 * four times in every timeout period. This takes care of the worst 493 * case where a starved transaction starts during an interval that 494 * meets the requirement "don't send an ordered tag" test so it takes 495 * us two intervals to determine that a tag must be sent. 496 */ 497 #ifndef DA_ORDEREDTAG_INTERVAL 498 #define DA_ORDEREDTAG_INTERVAL 4 499 #endif 500 501 static struct periph_driver dadriver = 502 { 503 dainit, "da", 504 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 505 }; 506 507 PERIPHDRIVER_DECLARE(da, dadriver); 508 509 static SLIST_HEAD(,da_softc) softc_list; 510 511 static int 512 daopen(struct disk *dp) 513 { 514 struct cam_periph *periph; 515 struct da_softc *softc; 516 int unit; 517 int error; 518 int s; 519 520 s = splsoftcam(); 521 periph = (struct cam_periph *)dp->d_drv1; 522 if (periph == NULL) { 523 splx(s); 524 return (ENXIO); 525 } 526 unit = periph->unit_number; 527 528 softc = (struct da_softc *)periph->softc; 529 530 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 531 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 532 unit)); 533 534 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 535 return (error); /* error code from tsleep */ 536 537 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 538 return(ENXIO); 539 softc->flags |= DA_FLAG_OPEN; 540 541 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 542 /* Invalidate our pack information. */ 543 softc->flags &= ~DA_FLAG_PACK_INVALID; 544 } 545 splx(s); 546 547 error = dagetcapacity(periph); 548 549 if (error == 0) { 550 551 softc->disk->d_sectorsize = softc->params.secsize; 552 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 553 /* XXX: these are not actually "firmware" values, so they may be wrong */ 554 softc->disk->d_fwsectors = softc->params.secs_per_track; 555 softc->disk->d_fwheads = softc->params.heads; 556 softc->disk->d_devstat->block_size = softc->params.secsize; 557 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 558 } 559 560 if (error == 0) { 561 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 562 (softc->quirks & DA_Q_NO_PREVENT) == 0) 563 daprevent(periph, PR_PREVENT); 564 } else { 565 softc->flags &= ~DA_FLAG_OPEN; 566 cam_periph_release(periph); 567 } 568 cam_periph_unlock(periph); 569 return (error); 570 } 571 572 static int 573 daclose(struct disk *dp) 574 { 575 struct cam_periph *periph; 576 struct da_softc *softc; 577 int error; 578 579 periph = (struct cam_periph *)dp->d_drv1; 580 if (periph == NULL) 581 return (ENXIO); 582 583 softc = (struct da_softc *)periph->softc; 584 585 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 586 return (error); /* error code from tsleep */ 587 } 588 589 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 590 union ccb *ccb; 591 592 ccb = cam_periph_getccb(periph, /*priority*/1); 593 594 scsi_synchronize_cache(&ccb->csio, 595 /*retries*/1, 596 /*cbfcnp*/dadone, 597 MSG_SIMPLE_Q_TAG, 598 /*begin_lba*/0,/* Cover the whole disk */ 599 /*lb_count*/0, 600 SSD_FULL_SIZE, 601 5 * 60 * 1000); 602 603 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 604 /*sense_flags*/SF_RETRY_UA, 605 softc->disk->d_devstat); 606 607 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 608 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 609 CAM_SCSI_STATUS_ERROR) { 610 int asc, ascq; 611 int sense_key, error_code; 612 613 scsi_extract_sense(&ccb->csio.sense_data, 614 &error_code, 615 &sense_key, 616 &asc, &ascq); 617 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 618 scsi_sense_print(&ccb->csio); 619 } else { 620 xpt_print_path(periph->path); 621 printf("Synchronize cache failed, status " 622 "== 0x%x, scsi status == 0x%x\n", 623 ccb->csio.ccb_h.status, 624 ccb->csio.scsi_status); 625 } 626 } 627 628 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 629 cam_release_devq(ccb->ccb_h.path, 630 /*relsim_flags*/0, 631 /*reduction*/0, 632 /*timeout*/0, 633 /*getcount_only*/0); 634 635 xpt_release_ccb(ccb); 636 637 } 638 639 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 640 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 641 daprevent(periph, PR_ALLOW); 642 /* 643 * If we've got removeable media, mark the blocksize as 644 * unavailable, since it could change when new media is 645 * inserted. 646 */ 647 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 648 } 649 650 softc->flags &= ~DA_FLAG_OPEN; 651 cam_periph_unlock(periph); 652 cam_periph_release(periph); 653 return (0); 654 } 655 656 /* 657 * Actually translate the requested transfer into one the physical driver 658 * can understand. The transfer is described by a buf and will include 659 * only one physical transfer. 660 */ 661 static void 662 dastrategy(struct bio *bp) 663 { 664 struct cam_periph *periph; 665 struct da_softc *softc; 666 int s; 667 668 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 669 if (periph == NULL) { 670 biofinish(bp, NULL, ENXIO); 671 return; 672 } 673 softc = (struct da_softc *)periph->softc; 674 #if 0 675 /* 676 * check it's not too big a transfer for our adapter 677 */ 678 scsi_minphys(bp,&sd_switch); 679 #endif 680 681 /* 682 * Mask interrupts so that the pack cannot be invalidated until 683 * after we are in the queue. Otherwise, we might not properly 684 * clean up one of the buffers. 685 */ 686 s = splbio(); 687 688 /* 689 * If the device has been made invalid, error out 690 */ 691 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 692 splx(s); 693 biofinish(bp, NULL, ENXIO); 694 return; 695 } 696 697 /* 698 * Place it in the queue of disk activities for this disk 699 */ 700 bioq_disksort(&softc->bio_queue, bp); 701 702 splx(s); 703 704 /* 705 * Schedule ourselves for performing the work. 706 */ 707 xpt_schedule(periph, /* XXX priority */1); 708 709 return; 710 } 711 712 static int 713 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 714 { 715 struct cam_periph *periph; 716 struct da_softc *softc; 717 u_int secsize; 718 struct ccb_scsiio csio; 719 struct disk *dp; 720 721 dp = arg; 722 periph = dp->d_drv1; 723 if (periph == NULL) 724 return (ENXIO); 725 softc = (struct da_softc *)periph->softc; 726 secsize = softc->params.secsize; 727 728 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 729 return (ENXIO); 730 731 if (length > 0) { 732 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 733 csio.ccb_h.ccb_state = DA_CCB_DUMP; 734 scsi_read_write(&csio, 735 /*retries*/1, 736 dadone, 737 MSG_ORDERED_Q_TAG, 738 /*read*/FALSE, 739 /*byte2*/0, 740 /*minimum_cmd_size*/ softc->minimum_cmd_size, 741 offset / secsize, 742 length / secsize, 743 /*data_ptr*/(u_int8_t *) virtual, 744 /*dxfer_len*/length, 745 /*sense_len*/SSD_FULL_SIZE, 746 DA_DEFAULT_TIMEOUT * 1000); 747 xpt_polled_action((union ccb *)&csio); 748 749 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 750 printf("Aborting dump due to I/O error.\n"); 751 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 752 CAM_SCSI_STATUS_ERROR) 753 scsi_sense_print(&csio); 754 else 755 printf("status == 0x%x, scsi status == 0x%x\n", 756 csio.ccb_h.status, csio.scsi_status); 757 return(EIO); 758 } 759 return(0); 760 } 761 762 /* 763 * Sync the disk cache contents to the physical media. 764 */ 765 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 766 767 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 768 csio.ccb_h.ccb_state = DA_CCB_DUMP; 769 scsi_synchronize_cache(&csio, 770 /*retries*/1, 771 /*cbfcnp*/dadone, 772 MSG_SIMPLE_Q_TAG, 773 /*begin_lba*/0,/* Cover the whole disk */ 774 /*lb_count*/0, 775 SSD_FULL_SIZE, 776 5 * 60 * 1000); 777 xpt_polled_action((union ccb *)&csio); 778 779 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 780 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 781 CAM_SCSI_STATUS_ERROR) { 782 int asc, ascq; 783 int sense_key, error_code; 784 785 scsi_extract_sense(&csio.sense_data, 786 &error_code, 787 &sense_key, 788 &asc, &ascq); 789 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 790 scsi_sense_print(&csio); 791 } else { 792 xpt_print_path(periph->path); 793 printf("Synchronize cache failed, status " 794 "== 0x%x, scsi status == 0x%x\n", 795 csio.ccb_h.status, csio.scsi_status); 796 } 797 } 798 } 799 return (0); 800 } 801 802 static void 803 dainit(void) 804 { 805 cam_status status; 806 struct cam_path *path; 807 808 SLIST_INIT(&softc_list); 809 810 /* 811 * Install a global async callback. This callback will 812 * receive async callbacks like "new device found". 813 */ 814 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 815 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 816 817 if (status == CAM_REQ_CMP) { 818 struct ccb_setasync csa; 819 820 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 821 csa.ccb_h.func_code = XPT_SASYNC_CB; 822 csa.event_enable = AC_FOUND_DEVICE; 823 csa.callback = daasync; 824 csa.callback_arg = NULL; 825 xpt_action((union ccb *)&csa); 826 status = csa.ccb_h.status; 827 xpt_free_path(path); 828 } 829 830 if (status != CAM_REQ_CMP) { 831 printf("da: Failed to attach master async callback " 832 "due to status 0x%x!\n", status); 833 } else { 834 835 /* 836 * Schedule a periodic event to occasionally send an 837 * ordered tag to a device. 838 */ 839 timeout(dasendorderedtag, NULL, 840 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 841 842 /* Register our shutdown event handler */ 843 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 844 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 845 printf("dainit: shutdown event registration failed!\n"); 846 } 847 } 848 849 static void 850 daoninvalidate(struct cam_periph *periph) 851 { 852 int s; 853 struct da_softc *softc; 854 struct ccb_setasync csa; 855 856 softc = (struct da_softc *)periph->softc; 857 858 /* 859 * De-register any async callbacks. 860 */ 861 xpt_setup_ccb(&csa.ccb_h, periph->path, 862 /* priority */ 5); 863 csa.ccb_h.func_code = XPT_SASYNC_CB; 864 csa.event_enable = 0; 865 csa.callback = daasync; 866 csa.callback_arg = periph; 867 xpt_action((union ccb *)&csa); 868 869 softc->flags |= DA_FLAG_PACK_INVALID; 870 871 /* 872 * Although the oninvalidate() routines are always called at 873 * splsoftcam, we need to be at splbio() here to keep the buffer 874 * queue from being modified while we traverse it. 875 */ 876 s = splbio(); 877 878 /* 879 * Return all queued I/O with ENXIO. 880 * XXX Handle any transactions queued to the card 881 * with XPT_ABORT_CCB. 882 */ 883 bioq_flush(&softc->bio_queue, NULL, ENXIO); 884 splx(s); 885 886 SLIST_REMOVE(&softc_list, softc, da_softc, links); 887 888 disk_gone(softc->disk); 889 xpt_print_path(periph->path); 890 printf("lost device\n"); 891 } 892 893 static void 894 dacleanup(struct cam_periph *periph) 895 { 896 struct da_softc *softc; 897 898 softc = (struct da_softc *)periph->softc; 899 900 xpt_print_path(periph->path); 901 printf("removing device entry\n"); 902 /* 903 * If we can't free the sysctl tree, oh well... 904 */ 905 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 906 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 907 xpt_print_path(periph->path); 908 printf("can't remove sysctl context\n"); 909 } 910 disk_destroy(softc->disk); 911 free(softc, M_DEVBUF); 912 } 913 914 static void 915 daasync(void *callback_arg, u_int32_t code, 916 struct cam_path *path, void *arg) 917 { 918 struct cam_periph *periph; 919 920 periph = (struct cam_periph *)callback_arg; 921 switch (code) { 922 case AC_FOUND_DEVICE: 923 { 924 struct ccb_getdev *cgd; 925 cam_status status; 926 927 cgd = (struct ccb_getdev *)arg; 928 if (cgd == NULL) 929 break; 930 931 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 932 && SID_TYPE(&cgd->inq_data) != T_RBC 933 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 934 break; 935 936 /* 937 * Allocate a peripheral instance for 938 * this device and start the probe 939 * process. 940 */ 941 status = cam_periph_alloc(daregister, daoninvalidate, 942 dacleanup, dastart, 943 "da", CAM_PERIPH_BIO, 944 cgd->ccb_h.path, daasync, 945 AC_FOUND_DEVICE, cgd); 946 947 if (status != CAM_REQ_CMP 948 && status != CAM_REQ_INPROG) 949 printf("daasync: Unable to attach to new device " 950 "due to status 0x%x\n", status); 951 break; 952 } 953 case AC_SENT_BDR: 954 case AC_BUS_RESET: 955 { 956 struct da_softc *softc; 957 struct ccb_hdr *ccbh; 958 int s; 959 960 softc = (struct da_softc *)periph->softc; 961 s = splsoftcam(); 962 /* 963 * Don't fail on the expected unit attention 964 * that will occur. 965 */ 966 softc->flags |= DA_FLAG_RETRY_UA; 967 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 968 ccbh->ccb_state |= DA_CCB_RETRY_UA; 969 splx(s); 970 /* FALLTHROUGH*/ 971 } 972 default: 973 cam_periph_async(periph, code, path, arg); 974 break; 975 } 976 } 977 978 static void 979 dasysctlinit(void *context, int pending) 980 { 981 struct cam_periph *periph; 982 struct da_softc *softc; 983 char tmpstr[80], tmpstr2[80]; 984 985 periph = (struct cam_periph *)context; 986 softc = (struct da_softc *)periph->softc; 987 988 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 989 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 990 991 mtx_lock(&Giant); 992 sysctl_ctx_init(&softc->sysctl_ctx); 993 softc->flags |= DA_FLAG_SCTX_INIT; 994 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 995 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 996 CTLFLAG_RD, 0, tmpstr); 997 if (softc->sysctl_tree == NULL) { 998 printf("dasysctlinit: unable to allocate sysctl tree\n"); 999 return; 1000 } 1001 1002 /* 1003 * Now register the sysctl handler, so the user can the value on 1004 * the fly. 1005 */ 1006 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1007 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1008 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1009 "Minimum CDB size"); 1010 1011 mtx_unlock(&Giant); 1012 } 1013 1014 static int 1015 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1016 { 1017 int error, value; 1018 1019 value = *(int *)arg1; 1020 1021 error = sysctl_handle_int(oidp, &value, 0, req); 1022 1023 if ((error != 0) 1024 || (req->newptr == NULL)) 1025 return (error); 1026 1027 /* 1028 * Acceptable values here are 6, 10, 12 or 16. 1029 */ 1030 if (value < 6) 1031 value = 6; 1032 else if ((value > 6) 1033 && (value <= 10)) 1034 value = 10; 1035 else if ((value > 10) 1036 && (value <= 12)) 1037 value = 12; 1038 else if (value > 12) 1039 value = 16; 1040 1041 *(int *)arg1 = value; 1042 1043 return (0); 1044 } 1045 1046 static cam_status 1047 daregister(struct cam_periph *periph, void *arg) 1048 { 1049 int s; 1050 struct da_softc *softc; 1051 struct ccb_setasync csa; 1052 struct ccb_pathinq cpi; 1053 struct ccb_getdev *cgd; 1054 char tmpstr[80]; 1055 caddr_t match; 1056 1057 cgd = (struct ccb_getdev *)arg; 1058 if (periph == NULL) { 1059 printf("daregister: periph was NULL!!\n"); 1060 return(CAM_REQ_CMP_ERR); 1061 } 1062 1063 if (cgd == NULL) { 1064 printf("daregister: no getdev CCB, can't register device\n"); 1065 return(CAM_REQ_CMP_ERR); 1066 } 1067 1068 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1069 M_NOWAIT|M_ZERO); 1070 1071 if (softc == NULL) { 1072 printf("daregister: Unable to probe new device. " 1073 "Unable to allocate softc\n"); 1074 return(CAM_REQ_CMP_ERR); 1075 } 1076 1077 LIST_INIT(&softc->pending_ccbs); 1078 softc->state = DA_STATE_PROBE; 1079 bioq_init(&softc->bio_queue); 1080 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1081 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1082 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1083 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1084 1085 periph->softc = softc; 1086 1087 /* 1088 * See if this device has any quirks. 1089 */ 1090 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1091 (caddr_t)da_quirk_table, 1092 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1093 sizeof(*da_quirk_table), scsi_inquiry_match); 1094 1095 if (match != NULL) 1096 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1097 else 1098 softc->quirks = DA_Q_NONE; 1099 1100 /* Check if the SIM does not want 6 byte commands */ 1101 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1102 cpi.ccb_h.func_code = XPT_PATH_INQ; 1103 xpt_action((union ccb *)&cpi); 1104 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1105 softc->quirks |= DA_Q_NO_6_BYTE; 1106 1107 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1108 1109 /* 1110 * RBC devices don't have to support READ(6), only READ(10). 1111 */ 1112 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1113 softc->minimum_cmd_size = 10; 1114 else 1115 softc->minimum_cmd_size = 6; 1116 1117 /* 1118 * Load the user's default, if any. 1119 */ 1120 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1121 periph->unit_number); 1122 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1123 1124 /* 1125 * 6, 10, 12 and 16 are the currently permissible values. 1126 */ 1127 if (softc->minimum_cmd_size < 6) 1128 softc->minimum_cmd_size = 6; 1129 else if ((softc->minimum_cmd_size > 6) 1130 && (softc->minimum_cmd_size <= 10)) 1131 softc->minimum_cmd_size = 10; 1132 else if ((softc->minimum_cmd_size > 10) 1133 && (softc->minimum_cmd_size <= 12)) 1134 softc->minimum_cmd_size = 12; 1135 else if (softc->minimum_cmd_size > 12) 1136 softc->minimum_cmd_size = 16; 1137 1138 /* 1139 * Block our timeout handler while we 1140 * add this softc to the dev list. 1141 */ 1142 s = splsoftclock(); 1143 SLIST_INSERT_HEAD(&softc_list, softc, links); 1144 splx(s); 1145 1146 /* 1147 * Register this media as a disk 1148 */ 1149 1150 softc->disk = disk_alloc(); 1151 softc->disk->d_open = daopen; 1152 softc->disk->d_close = daclose; 1153 softc->disk->d_strategy = dastrategy; 1154 softc->disk->d_dump = dadump; 1155 softc->disk->d_name = "da"; 1156 softc->disk->d_drv1 = periph; 1157 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1158 softc->disk->d_unit = periph->unit_number; 1159 softc->disk->d_flags = DISKFLAG_NEEDSGIANT; 1160 disk_create(softc->disk, DISK_VERSION); 1161 1162 /* 1163 * Add async callbacks for bus reset and 1164 * bus device reset calls. I don't bother 1165 * checking if this fails as, in most cases, 1166 * the system will function just fine without 1167 * them and the only alternative would be to 1168 * not attach the device on failure. 1169 */ 1170 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1171 csa.ccb_h.func_code = XPT_SASYNC_CB; 1172 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1173 csa.callback = daasync; 1174 csa.callback_arg = periph; 1175 xpt_action((union ccb *)&csa); 1176 /* 1177 * Lock this peripheral until we are setup. 1178 * This first call can't block 1179 */ 1180 (void)cam_periph_lock(periph, PRIBIO); 1181 xpt_schedule(periph, /*priority*/5); 1182 1183 return(CAM_REQ_CMP); 1184 } 1185 1186 static void 1187 dastart(struct cam_periph *periph, union ccb *start_ccb) 1188 { 1189 struct da_softc *softc; 1190 1191 softc = (struct da_softc *)periph->softc; 1192 1193 1194 switch (softc->state) { 1195 case DA_STATE_NORMAL: 1196 { 1197 /* Pull a buffer from the queue and get going on it */ 1198 struct bio *bp; 1199 int s; 1200 1201 /* 1202 * See if there is a buf with work for us to do.. 1203 */ 1204 s = splbio(); 1205 bp = bioq_first(&softc->bio_queue); 1206 if (periph->immediate_priority <= periph->pinfo.priority) { 1207 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1208 ("queuing for immediate ccb\n")); 1209 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1210 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1211 periph_links.sle); 1212 periph->immediate_priority = CAM_PRIORITY_NONE; 1213 splx(s); 1214 wakeup(&periph->ccb_list); 1215 } else if (bp == NULL) { 1216 splx(s); 1217 xpt_release_ccb(start_ccb); 1218 } else { 1219 int oldspl; 1220 u_int8_t tag_code; 1221 1222 bioq_remove(&softc->bio_queue, bp); 1223 1224 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1225 softc->flags &= ~DA_FLAG_NEED_OTAG; 1226 softc->ordered_tag_count++; 1227 tag_code = MSG_ORDERED_Q_TAG; 1228 } else { 1229 tag_code = MSG_SIMPLE_Q_TAG; 1230 } 1231 scsi_read_write(&start_ccb->csio, 1232 /*retries*/da_retry_count, 1233 /*cbfcnp*/dadone, 1234 /*tag_action*/tag_code, 1235 /*read_op*/bp->bio_cmd == BIO_READ, 1236 /*byte2*/0, 1237 softc->minimum_cmd_size, 1238 /*lba*/bp->bio_pblkno, 1239 /*block_count*/bp->bio_bcount / 1240 softc->params.secsize, 1241 /*data_ptr*/ bp->bio_data, 1242 /*dxfer_len*/ bp->bio_bcount, 1243 /*sense_len*/SSD_FULL_SIZE, 1244 /*timeout*/da_default_timeout*1000); 1245 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1246 1247 /* 1248 * Block out any asyncronous callbacks 1249 * while we touch the pending ccb list. 1250 */ 1251 oldspl = splcam(); 1252 LIST_INSERT_HEAD(&softc->pending_ccbs, 1253 &start_ccb->ccb_h, periph_links.le); 1254 softc->outstanding_cmds++; 1255 splx(oldspl); 1256 1257 /* We expect a unit attention from this device */ 1258 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1259 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1260 softc->flags &= ~DA_FLAG_RETRY_UA; 1261 } 1262 1263 start_ccb->ccb_h.ccb_bp = bp; 1264 bp = bioq_first(&softc->bio_queue); 1265 splx(s); 1266 1267 xpt_action(start_ccb); 1268 } 1269 1270 if (bp != NULL) { 1271 /* Have more work to do, so ensure we stay scheduled */ 1272 xpt_schedule(periph, /* XXX priority */1); 1273 } 1274 break; 1275 } 1276 case DA_STATE_PROBE: 1277 { 1278 struct ccb_scsiio *csio; 1279 struct scsi_read_capacity_data *rcap; 1280 1281 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1282 M_TEMP, 1283 M_NOWAIT); 1284 if (rcap == NULL) { 1285 printf("dastart: Couldn't malloc read_capacity data\n"); 1286 /* da_free_periph??? */ 1287 break; 1288 } 1289 csio = &start_ccb->csio; 1290 scsi_read_capacity(csio, 1291 /*retries*/4, 1292 dadone, 1293 MSG_SIMPLE_Q_TAG, 1294 rcap, 1295 SSD_FULL_SIZE, 1296 /*timeout*/5000); 1297 start_ccb->ccb_h.ccb_bp = NULL; 1298 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1299 xpt_action(start_ccb); 1300 break; 1301 } 1302 case DA_STATE_PROBE2: 1303 { 1304 struct ccb_scsiio *csio; 1305 struct scsi_read_capacity_data_long *rcaplong; 1306 1307 rcaplong = (struct scsi_read_capacity_data_long *) 1308 malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT); 1309 if (rcaplong == NULL) { 1310 printf("dastart: Couldn't malloc read_capacity data\n"); 1311 /* da_free_periph??? */ 1312 break; 1313 } 1314 csio = &start_ccb->csio; 1315 scsi_read_capacity_16(csio, 1316 /*retries*/ 4, 1317 /*cbfcnp*/ dadone, 1318 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1319 /*lba*/ 0, 1320 /*reladr*/ 0, 1321 /*pmi*/ 0, 1322 rcaplong, 1323 /*sense_len*/ SSD_FULL_SIZE, 1324 /*timeout*/ 60000); 1325 start_ccb->ccb_h.ccb_bp = NULL; 1326 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1327 xpt_action(start_ccb); 1328 break; 1329 } 1330 } 1331 } 1332 1333 static int 1334 cmd6workaround(union ccb *ccb) 1335 { 1336 struct scsi_rw_6 cmd6; 1337 struct scsi_rw_10 *cmd10; 1338 struct da_softc *softc; 1339 u_int8_t *cdb; 1340 int frozen; 1341 1342 cdb = ccb->csio.cdb_io.cdb_bytes; 1343 1344 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1345 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1346 (*cdb != READ_6 && *cdb != WRITE_6)) 1347 return 0; 1348 1349 xpt_print_path(ccb->ccb_h.path); 1350 printf("READ(6)/WRITE(6) not supported, " 1351 "increasing minimum_cmd_size to 10.\n"); 1352 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1353 softc->minimum_cmd_size = 10; 1354 1355 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1356 cmd10 = (struct scsi_rw_10 *)cdb; 1357 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1358 cmd10->byte2 = 0; 1359 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1360 cmd10->reserved = 0; 1361 scsi_ulto2b(cmd6.length, cmd10->length); 1362 cmd10->control = cmd6.control; 1363 ccb->csio.cdb_len = sizeof(*cmd10); 1364 1365 /* Requeue request, unfreezing queue if necessary */ 1366 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1367 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1368 xpt_action(ccb); 1369 if (frozen) { 1370 cam_release_devq(ccb->ccb_h.path, 1371 /*relsim_flags*/0, 1372 /*reduction*/0, 1373 /*timeout*/0, 1374 /*getcount_only*/0); 1375 } 1376 return (ERESTART); 1377 } 1378 1379 static void 1380 dadone(struct cam_periph *periph, union ccb *done_ccb) 1381 { 1382 struct da_softc *softc; 1383 struct ccb_scsiio *csio; 1384 1385 softc = (struct da_softc *)periph->softc; 1386 csio = &done_ccb->csio; 1387 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1388 case DA_CCB_BUFFER_IO: 1389 { 1390 struct bio *bp; 1391 int oldspl; 1392 1393 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1394 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1395 int error; 1396 int s; 1397 int sf; 1398 1399 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1400 sf = SF_RETRY_UA; 1401 else 1402 sf = 0; 1403 1404 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1405 if (error == ERESTART) { 1406 /* 1407 * A retry was scheuled, so 1408 * just return. 1409 */ 1410 return; 1411 } 1412 if (error != 0) { 1413 1414 s = splbio(); 1415 1416 if (error == ENXIO) { 1417 /* 1418 * Catastrophic error. Mark our pack as 1419 * invalid. 1420 */ 1421 /* XXX See if this is really a media 1422 * change first. 1423 */ 1424 xpt_print_path(periph->path); 1425 printf("Invalidating pack\n"); 1426 softc->flags |= DA_FLAG_PACK_INVALID; 1427 } 1428 1429 /* 1430 * return all queued I/O with EIO, so that 1431 * the client can retry these I/Os in the 1432 * proper order should it attempt to recover. 1433 */ 1434 bioq_flush(&softc->bio_queue, NULL, EIO); 1435 splx(s); 1436 bp->bio_error = error; 1437 bp->bio_resid = bp->bio_bcount; 1438 bp->bio_flags |= BIO_ERROR; 1439 } else { 1440 bp->bio_resid = csio->resid; 1441 bp->bio_error = 0; 1442 if (bp->bio_resid != 0) 1443 bp->bio_flags |= BIO_ERROR; 1444 } 1445 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1446 cam_release_devq(done_ccb->ccb_h.path, 1447 /*relsim_flags*/0, 1448 /*reduction*/0, 1449 /*timeout*/0, 1450 /*getcount_only*/0); 1451 } else { 1452 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1453 panic("REQ_CMP with QFRZN"); 1454 bp->bio_resid = csio->resid; 1455 if (csio->resid > 0) 1456 bp->bio_flags |= BIO_ERROR; 1457 } 1458 1459 /* 1460 * Block out any asyncronous callbacks 1461 * while we touch the pending ccb list. 1462 */ 1463 oldspl = splcam(); 1464 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1465 softc->outstanding_cmds--; 1466 if (softc->outstanding_cmds == 0) 1467 softc->flags |= DA_FLAG_WENT_IDLE; 1468 splx(oldspl); 1469 1470 biodone(bp); 1471 break; 1472 } 1473 case DA_CCB_PROBE: 1474 case DA_CCB_PROBE2: 1475 { 1476 struct scsi_read_capacity_data *rdcap; 1477 struct scsi_read_capacity_data_long *rcaplong; 1478 char announce_buf[80]; 1479 1480 rdcap = NULL; 1481 rcaplong = NULL; 1482 if (softc->state == DA_STATE_PROBE) 1483 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1484 else 1485 rcaplong = (struct scsi_read_capacity_data_long *) 1486 csio->data_ptr; 1487 1488 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1489 struct disk_params *dp; 1490 uint32_t block_size; 1491 uint64_t maxsector; 1492 1493 if (softc->state == DA_STATE_PROBE) { 1494 block_size = scsi_4btoul(rdcap->length); 1495 maxsector = scsi_4btoul(rdcap->addr); 1496 1497 /* 1498 * According to SBC-2, if the standard 10 1499 * byte READ CAPACITY command returns 2^32, 1500 * we should issue the 16 byte version of 1501 * the command, since the device in question 1502 * has more sectors than can be represented 1503 * with the short version of the command. 1504 */ 1505 if (maxsector == 0xffffffff) { 1506 softc->state = DA_STATE_PROBE2; 1507 free(rdcap, M_TEMP); 1508 xpt_release_ccb(done_ccb); 1509 xpt_schedule(periph, /*priority*/5); 1510 return; 1511 } 1512 } else { 1513 block_size = scsi_4btoul(rcaplong->length); 1514 maxsector = scsi_8btou64(rcaplong->addr); 1515 } 1516 dasetgeom(periph, block_size, maxsector); 1517 dp = &softc->params; 1518 snprintf(announce_buf, sizeof(announce_buf), 1519 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1520 (uintmax_t) (((uintmax_t)dp->secsize * 1521 dp->sectors) / (1024*1024)), 1522 (uintmax_t)dp->sectors, 1523 dp->secsize, dp->heads, dp->secs_per_track, 1524 dp->cylinders); 1525 } else { 1526 int error; 1527 1528 announce_buf[0] = '\0'; 1529 1530 /* 1531 * Retry any UNIT ATTENTION type errors. They 1532 * are expected at boot. 1533 */ 1534 error = daerror(done_ccb, CAM_RETRY_SELTO, 1535 SF_RETRY_UA|SF_NO_PRINT); 1536 if (error == ERESTART) { 1537 /* 1538 * A retry was scheuled, so 1539 * just return. 1540 */ 1541 return; 1542 } else if (error != 0) { 1543 struct scsi_sense_data *sense; 1544 int asc, ascq; 1545 int sense_key, error_code; 1546 int have_sense; 1547 cam_status status; 1548 struct ccb_getdev cgd; 1549 1550 /* Don't wedge this device's queue */ 1551 status = done_ccb->ccb_h.status; 1552 if ((status & CAM_DEV_QFRZN) != 0) 1553 cam_release_devq(done_ccb->ccb_h.path, 1554 /*relsim_flags*/0, 1555 /*reduction*/0, 1556 /*timeout*/0, 1557 /*getcount_only*/0); 1558 1559 1560 xpt_setup_ccb(&cgd.ccb_h, 1561 done_ccb->ccb_h.path, 1562 /* priority */ 1); 1563 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1564 xpt_action((union ccb *)&cgd); 1565 1566 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1567 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1568 || ((status & CAM_AUTOSNS_VALID) == 0)) 1569 have_sense = FALSE; 1570 else 1571 have_sense = TRUE; 1572 1573 if (have_sense) { 1574 sense = &csio->sense_data; 1575 scsi_extract_sense(sense, &error_code, 1576 &sense_key, 1577 &asc, &ascq); 1578 } 1579 /* 1580 * Attach to anything that claims to be a 1581 * direct access or optical disk device, 1582 * as long as it doesn't return a "Logical 1583 * unit not supported" (0x25) error. 1584 */ 1585 if ((have_sense) && (asc != 0x25) 1586 && (error_code == SSD_CURRENT_ERROR)) { 1587 const char *sense_key_desc; 1588 const char *asc_desc; 1589 1590 scsi_sense_desc(sense_key, asc, ascq, 1591 &cgd.inq_data, 1592 &sense_key_desc, 1593 &asc_desc); 1594 snprintf(announce_buf, 1595 sizeof(announce_buf), 1596 "Attempt to query device " 1597 "size failed: %s, %s", 1598 sense_key_desc, 1599 asc_desc); 1600 } else { 1601 if (have_sense) 1602 scsi_sense_print( 1603 &done_ccb->csio); 1604 else { 1605 xpt_print_path(periph->path); 1606 printf("got CAM status %#x\n", 1607 done_ccb->ccb_h.status); 1608 } 1609 1610 xpt_print_path(periph->path); 1611 printf("fatal error, failed" 1612 " to attach to device\n"); 1613 1614 /* 1615 * Free up resources. 1616 */ 1617 cam_periph_invalidate(periph); 1618 } 1619 } 1620 } 1621 free(csio->data_ptr, M_TEMP); 1622 if (announce_buf[0] != '\0') { 1623 xpt_announce_periph(periph, announce_buf); 1624 /* 1625 * Create our sysctl variables, now that we know 1626 * we have successfully attached. 1627 */ 1628 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1629 } 1630 softc->state = DA_STATE_NORMAL; 1631 /* 1632 * Since our peripheral may be invalidated by an error 1633 * above or an external event, we must release our CCB 1634 * before releasing the probe lock on the peripheral. 1635 * The peripheral will only go away once the last lock 1636 * is removed, and we need it around for the CCB release 1637 * operation. 1638 */ 1639 xpt_release_ccb(done_ccb); 1640 cam_periph_unlock(periph); 1641 return; 1642 } 1643 case DA_CCB_WAITING: 1644 { 1645 /* Caller will release the CCB */ 1646 wakeup(&done_ccb->ccb_h.cbfcnp); 1647 return; 1648 } 1649 case DA_CCB_DUMP: 1650 /* No-op. We're polling */ 1651 return; 1652 default: 1653 break; 1654 } 1655 xpt_release_ccb(done_ccb); 1656 } 1657 1658 static int 1659 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1660 { 1661 struct da_softc *softc; 1662 struct cam_periph *periph; 1663 int error; 1664 1665 periph = xpt_path_periph(ccb->ccb_h.path); 1666 softc = (struct da_softc *)periph->softc; 1667 1668 /* 1669 * Automatically detect devices that do not support 1670 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1671 */ 1672 error = 0; 1673 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1674 error = cmd6workaround(ccb); 1675 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1676 CAM_SCSI_STATUS_ERROR) 1677 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1678 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1679 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1680 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1681 int sense_key, error_code, asc, ascq; 1682 1683 scsi_extract_sense(&ccb->csio.sense_data, 1684 &error_code, &sense_key, &asc, &ascq); 1685 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1686 error = cmd6workaround(ccb); 1687 } 1688 if (error == ERESTART) 1689 return (ERESTART); 1690 1691 /* 1692 * XXX 1693 * Until we have a better way of doing pack validation, 1694 * don't treat UAs as errors. 1695 */ 1696 sense_flags |= SF_RETRY_UA; 1697 return(cam_periph_error(ccb, cam_flags, sense_flags, 1698 &softc->saved_ccb)); 1699 } 1700 1701 static void 1702 daprevent(struct cam_periph *periph, int action) 1703 { 1704 struct da_softc *softc; 1705 union ccb *ccb; 1706 int error; 1707 1708 softc = (struct da_softc *)periph->softc; 1709 1710 if (((action == PR_ALLOW) 1711 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1712 || ((action == PR_PREVENT) 1713 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1714 return; 1715 } 1716 1717 ccb = cam_periph_getccb(periph, /*priority*/1); 1718 1719 scsi_prevent(&ccb->csio, 1720 /*retries*/1, 1721 /*cbcfp*/dadone, 1722 MSG_SIMPLE_Q_TAG, 1723 action, 1724 SSD_FULL_SIZE, 1725 5000); 1726 1727 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1728 SF_RETRY_UA, softc->disk->d_devstat); 1729 1730 if (error == 0) { 1731 if (action == PR_ALLOW) 1732 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1733 else 1734 softc->flags |= DA_FLAG_PACK_LOCKED; 1735 } 1736 1737 xpt_release_ccb(ccb); 1738 } 1739 1740 static int 1741 dagetcapacity(struct cam_periph *periph) 1742 { 1743 struct da_softc *softc; 1744 union ccb *ccb; 1745 struct scsi_read_capacity_data *rcap; 1746 struct scsi_read_capacity_data_long *rcaplong; 1747 uint32_t block_len; 1748 uint64_t maxsector; 1749 int error; 1750 1751 softc = (struct da_softc *)periph->softc; 1752 block_len = 0; 1753 maxsector = 0; 1754 error = 0; 1755 1756 /* Do a read capacity */ 1757 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1758 M_TEMP, 1759 M_WAITOK); 1760 1761 ccb = cam_periph_getccb(periph, /*priority*/1); 1762 scsi_read_capacity(&ccb->csio, 1763 /*retries*/4, 1764 /*cbfncp*/dadone, 1765 MSG_SIMPLE_Q_TAG, 1766 rcap, 1767 SSD_FULL_SIZE, 1768 /*timeout*/60000); 1769 ccb->ccb_h.ccb_bp = NULL; 1770 1771 error = cam_periph_runccb(ccb, daerror, 1772 /*cam_flags*/CAM_RETRY_SELTO, 1773 /*sense_flags*/SF_RETRY_UA, 1774 softc->disk->d_devstat); 1775 1776 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1777 cam_release_devq(ccb->ccb_h.path, 1778 /*relsim_flags*/0, 1779 /*reduction*/0, 1780 /*timeout*/0, 1781 /*getcount_only*/0); 1782 1783 if (error == 0) { 1784 block_len = scsi_4btoul(rcap->length); 1785 maxsector = scsi_4btoul(rcap->addr); 1786 1787 if (maxsector != 0xffffffff) 1788 goto done; 1789 } else 1790 goto done; 1791 1792 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1793 1794 scsi_read_capacity_16(&ccb->csio, 1795 /*retries*/ 4, 1796 /*cbfcnp*/ dadone, 1797 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1798 /*lba*/ 0, 1799 /*reladr*/ 0, 1800 /*pmi*/ 0, 1801 rcaplong, 1802 /*sense_len*/ SSD_FULL_SIZE, 1803 /*timeout*/ 60000); 1804 ccb->ccb_h.ccb_bp = NULL; 1805 1806 error = cam_periph_runccb(ccb, daerror, 1807 /*cam_flags*/CAM_RETRY_SELTO, 1808 /*sense_flags*/SF_RETRY_UA, 1809 softc->disk->d_devstat); 1810 1811 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1812 cam_release_devq(ccb->ccb_h.path, 1813 /*relsim_flags*/0, 1814 /*reduction*/0, 1815 /*timeout*/0, 1816 /*getcount_only*/0); 1817 1818 if (error == 0) { 1819 block_len = scsi_4btoul(rcaplong->length); 1820 maxsector = scsi_8btou64(rcaplong->addr); 1821 } 1822 1823 done: 1824 1825 if (error == 0) 1826 dasetgeom(periph, block_len, maxsector); 1827 1828 xpt_release_ccb(ccb); 1829 1830 free(rcap, M_TEMP); 1831 1832 return (error); 1833 } 1834 1835 static void 1836 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1837 { 1838 struct ccb_calc_geometry ccg; 1839 struct da_softc *softc; 1840 struct disk_params *dp; 1841 1842 softc = (struct da_softc *)periph->softc; 1843 1844 dp = &softc->params; 1845 dp->secsize = block_len; 1846 dp->sectors = maxsector + 1; 1847 /* 1848 * Have the controller provide us with a geometry 1849 * for this disk. The only time the geometry 1850 * matters is when we boot and the controller 1851 * is the only one knowledgeable enough to come 1852 * up with something that will make this a bootable 1853 * device. 1854 */ 1855 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1856 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1857 ccg.block_size = dp->secsize; 1858 ccg.volume_size = dp->sectors; 1859 ccg.heads = 0; 1860 ccg.secs_per_track = 0; 1861 ccg.cylinders = 0; 1862 xpt_action((union ccb*)&ccg); 1863 dp->heads = ccg.heads; 1864 dp->secs_per_track = ccg.secs_per_track; 1865 dp->cylinders = ccg.cylinders; 1866 } 1867 1868 static void 1869 dasendorderedtag(void *arg) 1870 { 1871 struct da_softc *softc; 1872 int s; 1873 1874 for (softc = SLIST_FIRST(&softc_list); 1875 softc != NULL; 1876 softc = SLIST_NEXT(softc, links)) { 1877 s = splsoftcam(); 1878 if ((softc->ordered_tag_count == 0) 1879 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1880 softc->flags |= DA_FLAG_NEED_OTAG; 1881 } 1882 if (softc->outstanding_cmds > 0) 1883 softc->flags &= ~DA_FLAG_WENT_IDLE; 1884 1885 softc->ordered_tag_count = 0; 1886 splx(s); 1887 } 1888 /* Queue us up again */ 1889 timeout(dasendorderedtag, NULL, 1890 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1891 } 1892 1893 /* 1894 * Step through all DA peripheral drivers, and if the device is still open, 1895 * sync the disk cache to physical media. 1896 */ 1897 static void 1898 dashutdown(void * arg, int howto) 1899 { 1900 struct cam_periph *periph; 1901 struct da_softc *softc; 1902 1903 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1904 union ccb ccb; 1905 softc = (struct da_softc *)periph->softc; 1906 1907 /* 1908 * We only sync the cache if the drive is still open, and 1909 * if the drive is capable of it.. 1910 */ 1911 if (((softc->flags & DA_FLAG_OPEN) == 0) 1912 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1913 continue; 1914 1915 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1916 1917 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1918 scsi_synchronize_cache(&ccb.csio, 1919 /*retries*/1, 1920 /*cbfcnp*/dadone, 1921 MSG_SIMPLE_Q_TAG, 1922 /*begin_lba*/0, /* whole disk */ 1923 /*lb_count*/0, 1924 SSD_FULL_SIZE, 1925 60 * 60 * 1000); 1926 1927 xpt_polled_action(&ccb); 1928 1929 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1930 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1931 CAM_SCSI_STATUS_ERROR) 1932 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1933 int error_code, sense_key, asc, ascq; 1934 1935 scsi_extract_sense(&ccb.csio.sense_data, 1936 &error_code, &sense_key, 1937 &asc, &ascq); 1938 1939 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1940 scsi_sense_print(&ccb.csio); 1941 } else { 1942 xpt_print_path(periph->path); 1943 printf("Synchronize cache failed, status " 1944 "== 0x%x, scsi status == 0x%x\n", 1945 ccb.ccb_h.status, ccb.csio.scsi_status); 1946 } 1947 } 1948 1949 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1950 cam_release_devq(ccb.ccb_h.path, 1951 /*relsim_flags*/0, 1952 /*reduction*/0, 1953 /*timeout*/0, 1954 /*getcount_only*/0); 1955 1956 } 1957 } 1958 1959 #else /* !_KERNEL */ 1960 1961 /* 1962 * XXX This is only left out of the kernel build to silence warnings. If, 1963 * for some reason this function is used in the kernel, the ifdefs should 1964 * be moved so it is included both in the kernel and userland. 1965 */ 1966 void 1967 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1968 void (*cbfcnp)(struct cam_periph *, union ccb *), 1969 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1970 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1971 u_int32_t timeout) 1972 { 1973 struct scsi_format_unit *scsi_cmd; 1974 1975 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1976 scsi_cmd->opcode = FORMAT_UNIT; 1977 scsi_cmd->byte2 = byte2; 1978 scsi_ulto2b(ileave, scsi_cmd->interleave); 1979 1980 cam_fill_csio(csio, 1981 retries, 1982 cbfcnp, 1983 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1984 tag_action, 1985 data_ptr, 1986 dxfer_len, 1987 sense_len, 1988 sizeof(*scsi_cmd), 1989 timeout); 1990 } 1991 1992 #endif /* _KERNEL */
Cache object: 72c5b3c65403b980754fd33dd18cd884
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