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("$FreeBSD$"); 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 mtx_unlock(&Giant); 1000 return; 1001 } 1002 1003 /* 1004 * Now register the sysctl handler, so the user can the value on 1005 * the fly. 1006 */ 1007 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1008 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1009 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1010 "Minimum CDB size"); 1011 1012 mtx_unlock(&Giant); 1013 } 1014 1015 static int 1016 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1017 { 1018 int error, value; 1019 1020 value = *(int *)arg1; 1021 1022 error = sysctl_handle_int(oidp, &value, 0, req); 1023 1024 if ((error != 0) 1025 || (req->newptr == NULL)) 1026 return (error); 1027 1028 /* 1029 * Acceptable values here are 6, 10, 12 or 16. 1030 */ 1031 if (value < 6) 1032 value = 6; 1033 else if ((value > 6) 1034 && (value <= 10)) 1035 value = 10; 1036 else if ((value > 10) 1037 && (value <= 12)) 1038 value = 12; 1039 else if (value > 12) 1040 value = 16; 1041 1042 *(int *)arg1 = value; 1043 1044 return (0); 1045 } 1046 1047 static cam_status 1048 daregister(struct cam_periph *periph, void *arg) 1049 { 1050 int s; 1051 struct da_softc *softc; 1052 struct ccb_setasync csa; 1053 struct ccb_pathinq cpi; 1054 struct ccb_getdev *cgd; 1055 char tmpstr[80]; 1056 caddr_t match; 1057 1058 cgd = (struct ccb_getdev *)arg; 1059 if (periph == NULL) { 1060 printf("daregister: periph was NULL!!\n"); 1061 return(CAM_REQ_CMP_ERR); 1062 } 1063 1064 if (cgd == NULL) { 1065 printf("daregister: no getdev CCB, can't register device\n"); 1066 return(CAM_REQ_CMP_ERR); 1067 } 1068 1069 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1070 M_NOWAIT|M_ZERO); 1071 1072 if (softc == NULL) { 1073 printf("daregister: Unable to probe new device. " 1074 "Unable to allocate softc\n"); 1075 return(CAM_REQ_CMP_ERR); 1076 } 1077 1078 LIST_INIT(&softc->pending_ccbs); 1079 softc->state = DA_STATE_PROBE; 1080 bioq_init(&softc->bio_queue); 1081 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1082 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1083 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1084 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1085 1086 periph->softc = softc; 1087 1088 /* 1089 * See if this device has any quirks. 1090 */ 1091 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1092 (caddr_t)da_quirk_table, 1093 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1094 sizeof(*da_quirk_table), scsi_inquiry_match); 1095 1096 if (match != NULL) 1097 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1098 else 1099 softc->quirks = DA_Q_NONE; 1100 1101 /* Check if the SIM does not want 6 byte commands */ 1102 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1103 cpi.ccb_h.func_code = XPT_PATH_INQ; 1104 xpt_action((union ccb *)&cpi); 1105 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1106 softc->quirks |= DA_Q_NO_6_BYTE; 1107 1108 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1109 1110 /* 1111 * RBC devices don't have to support READ(6), only READ(10). 1112 */ 1113 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1114 softc->minimum_cmd_size = 10; 1115 else 1116 softc->minimum_cmd_size = 6; 1117 1118 /* 1119 * Load the user's default, if any. 1120 */ 1121 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1122 periph->unit_number); 1123 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1124 1125 /* 1126 * 6, 10, 12 and 16 are the currently permissible values. 1127 */ 1128 if (softc->minimum_cmd_size < 6) 1129 softc->minimum_cmd_size = 6; 1130 else if ((softc->minimum_cmd_size > 6) 1131 && (softc->minimum_cmd_size <= 10)) 1132 softc->minimum_cmd_size = 10; 1133 else if ((softc->minimum_cmd_size > 10) 1134 && (softc->minimum_cmd_size <= 12)) 1135 softc->minimum_cmd_size = 12; 1136 else if (softc->minimum_cmd_size > 12) 1137 softc->minimum_cmd_size = 16; 1138 1139 /* 1140 * Block our timeout handler while we 1141 * add this softc to the dev list. 1142 */ 1143 s = splsoftclock(); 1144 SLIST_INSERT_HEAD(&softc_list, softc, links); 1145 splx(s); 1146 1147 /* 1148 * Register this media as a disk 1149 */ 1150 1151 softc->disk = disk_alloc(); 1152 softc->disk->d_open = daopen; 1153 softc->disk->d_close = daclose; 1154 softc->disk->d_strategy = dastrategy; 1155 softc->disk->d_dump = dadump; 1156 softc->disk->d_name = "da"; 1157 softc->disk->d_drv1 = periph; 1158 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1159 softc->disk->d_unit = periph->unit_number; 1160 softc->disk->d_flags = DISKFLAG_NEEDSGIANT; 1161 disk_create(softc->disk, DISK_VERSION); 1162 1163 /* 1164 * Add async callbacks for bus reset and 1165 * bus device reset calls. I don't bother 1166 * checking if this fails as, in most cases, 1167 * the system will function just fine without 1168 * them and the only alternative would be to 1169 * not attach the device on failure. 1170 */ 1171 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1172 csa.ccb_h.func_code = XPT_SASYNC_CB; 1173 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1174 csa.callback = daasync; 1175 csa.callback_arg = periph; 1176 xpt_action((union ccb *)&csa); 1177 /* 1178 * Lock this peripheral until we are setup. 1179 * This first call can't block 1180 */ 1181 (void)cam_periph_lock(periph, PRIBIO); 1182 xpt_schedule(periph, /*priority*/5); 1183 1184 return(CAM_REQ_CMP); 1185 } 1186 1187 static void 1188 dastart(struct cam_periph *periph, union ccb *start_ccb) 1189 { 1190 struct da_softc *softc; 1191 1192 softc = (struct da_softc *)periph->softc; 1193 1194 1195 switch (softc->state) { 1196 case DA_STATE_NORMAL: 1197 { 1198 /* Pull a buffer from the queue and get going on it */ 1199 struct bio *bp; 1200 int s; 1201 1202 /* 1203 * See if there is a buf with work for us to do.. 1204 */ 1205 s = splbio(); 1206 bp = bioq_first(&softc->bio_queue); 1207 if (periph->immediate_priority <= periph->pinfo.priority) { 1208 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1209 ("queuing for immediate ccb\n")); 1210 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1211 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1212 periph_links.sle); 1213 periph->immediate_priority = CAM_PRIORITY_NONE; 1214 splx(s); 1215 wakeup(&periph->ccb_list); 1216 } else if (bp == NULL) { 1217 splx(s); 1218 xpt_release_ccb(start_ccb); 1219 } else { 1220 int oldspl; 1221 u_int8_t tag_code; 1222 1223 bioq_remove(&softc->bio_queue, bp); 1224 1225 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1226 softc->flags &= ~DA_FLAG_NEED_OTAG; 1227 softc->ordered_tag_count++; 1228 tag_code = MSG_ORDERED_Q_TAG; 1229 } else { 1230 tag_code = MSG_SIMPLE_Q_TAG; 1231 } 1232 scsi_read_write(&start_ccb->csio, 1233 /*retries*/da_retry_count, 1234 /*cbfcnp*/dadone, 1235 /*tag_action*/tag_code, 1236 /*read_op*/bp->bio_cmd == BIO_READ, 1237 /*byte2*/0, 1238 softc->minimum_cmd_size, 1239 /*lba*/bp->bio_pblkno, 1240 /*block_count*/bp->bio_bcount / 1241 softc->params.secsize, 1242 /*data_ptr*/ bp->bio_data, 1243 /*dxfer_len*/ bp->bio_bcount, 1244 /*sense_len*/SSD_FULL_SIZE, 1245 /*timeout*/da_default_timeout*1000); 1246 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1247 1248 /* 1249 * Block out any asyncronous callbacks 1250 * while we touch the pending ccb list. 1251 */ 1252 oldspl = splcam(); 1253 LIST_INSERT_HEAD(&softc->pending_ccbs, 1254 &start_ccb->ccb_h, periph_links.le); 1255 softc->outstanding_cmds++; 1256 splx(oldspl); 1257 1258 /* We expect a unit attention from this device */ 1259 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1260 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1261 softc->flags &= ~DA_FLAG_RETRY_UA; 1262 } 1263 1264 start_ccb->ccb_h.ccb_bp = bp; 1265 bp = bioq_first(&softc->bio_queue); 1266 splx(s); 1267 1268 xpt_action(start_ccb); 1269 } 1270 1271 if (bp != NULL) { 1272 /* Have more work to do, so ensure we stay scheduled */ 1273 xpt_schedule(periph, /* XXX priority */1); 1274 } 1275 break; 1276 } 1277 case DA_STATE_PROBE: 1278 { 1279 struct ccb_scsiio *csio; 1280 struct scsi_read_capacity_data *rcap; 1281 1282 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1283 M_TEMP, 1284 M_NOWAIT); 1285 if (rcap == NULL) { 1286 printf("dastart: Couldn't malloc read_capacity data\n"); 1287 /* da_free_periph??? */ 1288 break; 1289 } 1290 csio = &start_ccb->csio; 1291 scsi_read_capacity(csio, 1292 /*retries*/4, 1293 dadone, 1294 MSG_SIMPLE_Q_TAG, 1295 rcap, 1296 SSD_FULL_SIZE, 1297 /*timeout*/5000); 1298 start_ccb->ccb_h.ccb_bp = NULL; 1299 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1300 xpt_action(start_ccb); 1301 break; 1302 } 1303 case DA_STATE_PROBE2: 1304 { 1305 struct ccb_scsiio *csio; 1306 struct scsi_read_capacity_data_long *rcaplong; 1307 1308 rcaplong = (struct scsi_read_capacity_data_long *) 1309 malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT); 1310 if (rcaplong == NULL) { 1311 printf("dastart: Couldn't malloc read_capacity data\n"); 1312 /* da_free_periph??? */ 1313 break; 1314 } 1315 csio = &start_ccb->csio; 1316 scsi_read_capacity_16(csio, 1317 /*retries*/ 4, 1318 /*cbfcnp*/ dadone, 1319 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1320 /*lba*/ 0, 1321 /*reladr*/ 0, 1322 /*pmi*/ 0, 1323 rcaplong, 1324 /*sense_len*/ SSD_FULL_SIZE, 1325 /*timeout*/ 60000); 1326 start_ccb->ccb_h.ccb_bp = NULL; 1327 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1328 xpt_action(start_ccb); 1329 break; 1330 } 1331 } 1332 } 1333 1334 static int 1335 cmd6workaround(union ccb *ccb) 1336 { 1337 struct scsi_rw_6 cmd6; 1338 struct scsi_rw_10 *cmd10; 1339 struct da_softc *softc; 1340 u_int8_t *cdb; 1341 int frozen; 1342 1343 cdb = ccb->csio.cdb_io.cdb_bytes; 1344 1345 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1346 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1347 (*cdb != READ_6 && *cdb != WRITE_6)) 1348 return 0; 1349 1350 xpt_print_path(ccb->ccb_h.path); 1351 printf("READ(6)/WRITE(6) not supported, " 1352 "increasing minimum_cmd_size to 10.\n"); 1353 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1354 softc->minimum_cmd_size = 10; 1355 1356 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1357 cmd10 = (struct scsi_rw_10 *)cdb; 1358 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1359 cmd10->byte2 = 0; 1360 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1361 cmd10->reserved = 0; 1362 scsi_ulto2b(cmd6.length, cmd10->length); 1363 cmd10->control = cmd6.control; 1364 ccb->csio.cdb_len = sizeof(*cmd10); 1365 1366 /* Requeue request, unfreezing queue if necessary */ 1367 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1368 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1369 xpt_action(ccb); 1370 if (frozen) { 1371 cam_release_devq(ccb->ccb_h.path, 1372 /*relsim_flags*/0, 1373 /*reduction*/0, 1374 /*timeout*/0, 1375 /*getcount_only*/0); 1376 } 1377 return (ERESTART); 1378 } 1379 1380 static void 1381 dadone(struct cam_periph *periph, union ccb *done_ccb) 1382 { 1383 struct da_softc *softc; 1384 struct ccb_scsiio *csio; 1385 1386 softc = (struct da_softc *)periph->softc; 1387 csio = &done_ccb->csio; 1388 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1389 case DA_CCB_BUFFER_IO: 1390 { 1391 struct bio *bp; 1392 int oldspl; 1393 1394 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1395 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1396 int error; 1397 int s; 1398 int sf; 1399 1400 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1401 sf = SF_RETRY_UA; 1402 else 1403 sf = 0; 1404 1405 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1406 if (error == ERESTART) { 1407 /* 1408 * A retry was scheuled, so 1409 * just return. 1410 */ 1411 return; 1412 } 1413 if (error != 0) { 1414 1415 s = splbio(); 1416 1417 if (error == ENXIO) { 1418 /* 1419 * Catastrophic error. Mark our pack as 1420 * invalid. 1421 */ 1422 /* XXX See if this is really a media 1423 * change first. 1424 */ 1425 xpt_print_path(periph->path); 1426 printf("Invalidating pack\n"); 1427 softc->flags |= DA_FLAG_PACK_INVALID; 1428 } 1429 1430 /* 1431 * return all queued I/O with EIO, so that 1432 * the client can retry these I/Os in the 1433 * proper order should it attempt to recover. 1434 */ 1435 bioq_flush(&softc->bio_queue, NULL, EIO); 1436 splx(s); 1437 bp->bio_error = error; 1438 bp->bio_resid = bp->bio_bcount; 1439 bp->bio_flags |= BIO_ERROR; 1440 } else { 1441 bp->bio_resid = csio->resid; 1442 bp->bio_error = 0; 1443 if (bp->bio_resid != 0) 1444 bp->bio_flags |= BIO_ERROR; 1445 } 1446 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1447 cam_release_devq(done_ccb->ccb_h.path, 1448 /*relsim_flags*/0, 1449 /*reduction*/0, 1450 /*timeout*/0, 1451 /*getcount_only*/0); 1452 } else { 1453 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1454 panic("REQ_CMP with QFRZN"); 1455 bp->bio_resid = csio->resid; 1456 if (csio->resid > 0) 1457 bp->bio_flags |= BIO_ERROR; 1458 } 1459 1460 /* 1461 * Block out any asyncronous callbacks 1462 * while we touch the pending ccb list. 1463 */ 1464 oldspl = splcam(); 1465 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1466 softc->outstanding_cmds--; 1467 if (softc->outstanding_cmds == 0) 1468 softc->flags |= DA_FLAG_WENT_IDLE; 1469 splx(oldspl); 1470 1471 biodone(bp); 1472 break; 1473 } 1474 case DA_CCB_PROBE: 1475 case DA_CCB_PROBE2: 1476 { 1477 struct scsi_read_capacity_data *rdcap; 1478 struct scsi_read_capacity_data_long *rcaplong; 1479 char announce_buf[80]; 1480 1481 rdcap = NULL; 1482 rcaplong = NULL; 1483 if (softc->state == DA_STATE_PROBE) 1484 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1485 else 1486 rcaplong = (struct scsi_read_capacity_data_long *) 1487 csio->data_ptr; 1488 1489 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1490 struct disk_params *dp; 1491 uint32_t block_size; 1492 uint64_t maxsector; 1493 1494 if (softc->state == DA_STATE_PROBE) { 1495 block_size = scsi_4btoul(rdcap->length); 1496 maxsector = scsi_4btoul(rdcap->addr); 1497 1498 /* 1499 * According to SBC-2, if the standard 10 1500 * byte READ CAPACITY command returns 2^32, 1501 * we should issue the 16 byte version of 1502 * the command, since the device in question 1503 * has more sectors than can be represented 1504 * with the short version of the command. 1505 */ 1506 if (maxsector == 0xffffffff) { 1507 softc->state = DA_STATE_PROBE2; 1508 free(rdcap, M_TEMP); 1509 xpt_release_ccb(done_ccb); 1510 xpt_schedule(periph, /*priority*/5); 1511 return; 1512 } 1513 } else { 1514 block_size = scsi_4btoul(rcaplong->length); 1515 maxsector = scsi_8btou64(rcaplong->addr); 1516 } 1517 dasetgeom(periph, block_size, maxsector); 1518 dp = &softc->params; 1519 snprintf(announce_buf, sizeof(announce_buf), 1520 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1521 (uintmax_t) (((uintmax_t)dp->secsize * 1522 dp->sectors) / (1024*1024)), 1523 (uintmax_t)dp->sectors, 1524 dp->secsize, dp->heads, dp->secs_per_track, 1525 dp->cylinders); 1526 } else { 1527 int error; 1528 1529 announce_buf[0] = '\0'; 1530 1531 /* 1532 * Retry any UNIT ATTENTION type errors. They 1533 * are expected at boot. 1534 */ 1535 error = daerror(done_ccb, CAM_RETRY_SELTO, 1536 SF_RETRY_UA|SF_NO_PRINT); 1537 if (error == ERESTART) { 1538 /* 1539 * A retry was scheuled, so 1540 * just return. 1541 */ 1542 return; 1543 } else if (error != 0) { 1544 struct scsi_sense_data *sense; 1545 int asc, ascq; 1546 int sense_key, error_code; 1547 int have_sense; 1548 cam_status status; 1549 struct ccb_getdev cgd; 1550 1551 /* Don't wedge this device's queue */ 1552 status = done_ccb->ccb_h.status; 1553 if ((status & CAM_DEV_QFRZN) != 0) 1554 cam_release_devq(done_ccb->ccb_h.path, 1555 /*relsim_flags*/0, 1556 /*reduction*/0, 1557 /*timeout*/0, 1558 /*getcount_only*/0); 1559 1560 1561 xpt_setup_ccb(&cgd.ccb_h, 1562 done_ccb->ccb_h.path, 1563 /* priority */ 1); 1564 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1565 xpt_action((union ccb *)&cgd); 1566 1567 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1568 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1569 || ((status & CAM_AUTOSNS_VALID) == 0)) 1570 have_sense = FALSE; 1571 else 1572 have_sense = TRUE; 1573 1574 if (have_sense) { 1575 sense = &csio->sense_data; 1576 scsi_extract_sense(sense, &error_code, 1577 &sense_key, 1578 &asc, &ascq); 1579 } 1580 /* 1581 * Attach to anything that claims to be a 1582 * direct access or optical disk device, 1583 * as long as it doesn't return a "Logical 1584 * unit not supported" (0x25) error. 1585 */ 1586 if ((have_sense) && (asc != 0x25) 1587 && (error_code == SSD_CURRENT_ERROR)) { 1588 const char *sense_key_desc; 1589 const char *asc_desc; 1590 1591 scsi_sense_desc(sense_key, asc, ascq, 1592 &cgd.inq_data, 1593 &sense_key_desc, 1594 &asc_desc); 1595 snprintf(announce_buf, 1596 sizeof(announce_buf), 1597 "Attempt to query device " 1598 "size failed: %s, %s", 1599 sense_key_desc, 1600 asc_desc); 1601 } else { 1602 if (have_sense) 1603 scsi_sense_print( 1604 &done_ccb->csio); 1605 else { 1606 xpt_print_path(periph->path); 1607 printf("got CAM status %#x\n", 1608 done_ccb->ccb_h.status); 1609 } 1610 1611 xpt_print_path(periph->path); 1612 printf("fatal error, failed" 1613 " to attach to device\n"); 1614 1615 /* 1616 * Free up resources. 1617 */ 1618 cam_periph_invalidate(periph); 1619 } 1620 } 1621 } 1622 free(csio->data_ptr, M_TEMP); 1623 if (announce_buf[0] != '\0') { 1624 xpt_announce_periph(periph, announce_buf); 1625 /* 1626 * Create our sysctl variables, now that we know 1627 * we have successfully attached. 1628 */ 1629 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1630 } 1631 softc->state = DA_STATE_NORMAL; 1632 /* 1633 * Since our peripheral may be invalidated by an error 1634 * above or an external event, we must release our CCB 1635 * before releasing the probe lock on the peripheral. 1636 * The peripheral will only go away once the last lock 1637 * is removed, and we need it around for the CCB release 1638 * operation. 1639 */ 1640 xpt_release_ccb(done_ccb); 1641 cam_periph_unlock(periph); 1642 return; 1643 } 1644 case DA_CCB_WAITING: 1645 { 1646 /* Caller will release the CCB */ 1647 wakeup(&done_ccb->ccb_h.cbfcnp); 1648 return; 1649 } 1650 case DA_CCB_DUMP: 1651 /* No-op. We're polling */ 1652 return; 1653 default: 1654 break; 1655 } 1656 xpt_release_ccb(done_ccb); 1657 } 1658 1659 static int 1660 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1661 { 1662 struct da_softc *softc; 1663 struct cam_periph *periph; 1664 int error; 1665 1666 periph = xpt_path_periph(ccb->ccb_h.path); 1667 softc = (struct da_softc *)periph->softc; 1668 1669 /* 1670 * Automatically detect devices that do not support 1671 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1672 */ 1673 error = 0; 1674 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1675 error = cmd6workaround(ccb); 1676 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1677 CAM_SCSI_STATUS_ERROR) 1678 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1679 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1680 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1681 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1682 int sense_key, error_code, asc, ascq; 1683 1684 scsi_extract_sense(&ccb->csio.sense_data, 1685 &error_code, &sense_key, &asc, &ascq); 1686 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1687 error = cmd6workaround(ccb); 1688 } 1689 if (error == ERESTART) 1690 return (ERESTART); 1691 1692 /* 1693 * XXX 1694 * Until we have a better way of doing pack validation, 1695 * don't treat UAs as errors. 1696 */ 1697 sense_flags |= SF_RETRY_UA; 1698 return(cam_periph_error(ccb, cam_flags, sense_flags, 1699 &softc->saved_ccb)); 1700 } 1701 1702 static void 1703 daprevent(struct cam_periph *periph, int action) 1704 { 1705 struct da_softc *softc; 1706 union ccb *ccb; 1707 int error; 1708 1709 softc = (struct da_softc *)periph->softc; 1710 1711 if (((action == PR_ALLOW) 1712 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1713 || ((action == PR_PREVENT) 1714 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1715 return; 1716 } 1717 1718 ccb = cam_periph_getccb(periph, /*priority*/1); 1719 1720 scsi_prevent(&ccb->csio, 1721 /*retries*/1, 1722 /*cbcfp*/dadone, 1723 MSG_SIMPLE_Q_TAG, 1724 action, 1725 SSD_FULL_SIZE, 1726 5000); 1727 1728 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1729 SF_RETRY_UA, softc->disk->d_devstat); 1730 1731 if (error == 0) { 1732 if (action == PR_ALLOW) 1733 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1734 else 1735 softc->flags |= DA_FLAG_PACK_LOCKED; 1736 } 1737 1738 xpt_release_ccb(ccb); 1739 } 1740 1741 static int 1742 dagetcapacity(struct cam_periph *periph) 1743 { 1744 struct da_softc *softc; 1745 union ccb *ccb; 1746 struct scsi_read_capacity_data *rcap; 1747 struct scsi_read_capacity_data_long *rcaplong; 1748 uint32_t block_len; 1749 uint64_t maxsector; 1750 int error; 1751 1752 softc = (struct da_softc *)periph->softc; 1753 block_len = 0; 1754 maxsector = 0; 1755 error = 0; 1756 1757 /* Do a read capacity */ 1758 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1759 M_TEMP, 1760 M_WAITOK); 1761 1762 ccb = cam_periph_getccb(periph, /*priority*/1); 1763 scsi_read_capacity(&ccb->csio, 1764 /*retries*/4, 1765 /*cbfncp*/dadone, 1766 MSG_SIMPLE_Q_TAG, 1767 rcap, 1768 SSD_FULL_SIZE, 1769 /*timeout*/60000); 1770 ccb->ccb_h.ccb_bp = NULL; 1771 1772 error = cam_periph_runccb(ccb, daerror, 1773 /*cam_flags*/CAM_RETRY_SELTO, 1774 /*sense_flags*/SF_RETRY_UA, 1775 softc->disk->d_devstat); 1776 1777 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1778 cam_release_devq(ccb->ccb_h.path, 1779 /*relsim_flags*/0, 1780 /*reduction*/0, 1781 /*timeout*/0, 1782 /*getcount_only*/0); 1783 1784 if (error == 0) { 1785 block_len = scsi_4btoul(rcap->length); 1786 maxsector = scsi_4btoul(rcap->addr); 1787 1788 if (maxsector != 0xffffffff) 1789 goto done; 1790 } else 1791 goto done; 1792 1793 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1794 1795 scsi_read_capacity_16(&ccb->csio, 1796 /*retries*/ 4, 1797 /*cbfcnp*/ dadone, 1798 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1799 /*lba*/ 0, 1800 /*reladr*/ 0, 1801 /*pmi*/ 0, 1802 rcaplong, 1803 /*sense_len*/ SSD_FULL_SIZE, 1804 /*timeout*/ 60000); 1805 ccb->ccb_h.ccb_bp = NULL; 1806 1807 error = cam_periph_runccb(ccb, daerror, 1808 /*cam_flags*/CAM_RETRY_SELTO, 1809 /*sense_flags*/SF_RETRY_UA, 1810 softc->disk->d_devstat); 1811 1812 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1813 cam_release_devq(ccb->ccb_h.path, 1814 /*relsim_flags*/0, 1815 /*reduction*/0, 1816 /*timeout*/0, 1817 /*getcount_only*/0); 1818 1819 if (error == 0) { 1820 block_len = scsi_4btoul(rcaplong->length); 1821 maxsector = scsi_8btou64(rcaplong->addr); 1822 } 1823 1824 done: 1825 1826 if (error == 0) 1827 dasetgeom(periph, block_len, maxsector); 1828 1829 xpt_release_ccb(ccb); 1830 1831 free(rcap, M_TEMP); 1832 1833 return (error); 1834 } 1835 1836 static void 1837 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1838 { 1839 struct ccb_calc_geometry ccg; 1840 struct da_softc *softc; 1841 struct disk_params *dp; 1842 1843 softc = (struct da_softc *)periph->softc; 1844 1845 dp = &softc->params; 1846 dp->secsize = block_len; 1847 dp->sectors = maxsector + 1; 1848 /* 1849 * Have the controller provide us with a geometry 1850 * for this disk. The only time the geometry 1851 * matters is when we boot and the controller 1852 * is the only one knowledgeable enough to come 1853 * up with something that will make this a bootable 1854 * device. 1855 */ 1856 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1857 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1858 ccg.block_size = dp->secsize; 1859 ccg.volume_size = dp->sectors; 1860 ccg.heads = 0; 1861 ccg.secs_per_track = 0; 1862 ccg.cylinders = 0; 1863 xpt_action((union ccb*)&ccg); 1864 dp->heads = ccg.heads; 1865 dp->secs_per_track = ccg.secs_per_track; 1866 dp->cylinders = ccg.cylinders; 1867 } 1868 1869 static void 1870 dasendorderedtag(void *arg) 1871 { 1872 struct da_softc *softc; 1873 int s; 1874 1875 for (softc = SLIST_FIRST(&softc_list); 1876 softc != NULL; 1877 softc = SLIST_NEXT(softc, links)) { 1878 s = splsoftcam(); 1879 if ((softc->ordered_tag_count == 0) 1880 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1881 softc->flags |= DA_FLAG_NEED_OTAG; 1882 } 1883 if (softc->outstanding_cmds > 0) 1884 softc->flags &= ~DA_FLAG_WENT_IDLE; 1885 1886 softc->ordered_tag_count = 0; 1887 splx(s); 1888 } 1889 /* Queue us up again */ 1890 timeout(dasendorderedtag, NULL, 1891 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1892 } 1893 1894 /* 1895 * Step through all DA peripheral drivers, and if the device is still open, 1896 * sync the disk cache to physical media. 1897 */ 1898 static void 1899 dashutdown(void * arg, int howto) 1900 { 1901 struct cam_periph *periph; 1902 struct da_softc *softc; 1903 1904 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1905 union ccb ccb; 1906 softc = (struct da_softc *)periph->softc; 1907 1908 /* 1909 * We only sync the cache if the drive is still open, and 1910 * if the drive is capable of it.. 1911 */ 1912 if (((softc->flags & DA_FLAG_OPEN) == 0) 1913 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1914 continue; 1915 1916 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1917 1918 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1919 scsi_synchronize_cache(&ccb.csio, 1920 /*retries*/1, 1921 /*cbfcnp*/dadone, 1922 MSG_SIMPLE_Q_TAG, 1923 /*begin_lba*/0, /* whole disk */ 1924 /*lb_count*/0, 1925 SSD_FULL_SIZE, 1926 60 * 60 * 1000); 1927 1928 xpt_polled_action(&ccb); 1929 1930 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1931 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1932 CAM_SCSI_STATUS_ERROR) 1933 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1934 int error_code, sense_key, asc, ascq; 1935 1936 scsi_extract_sense(&ccb.csio.sense_data, 1937 &error_code, &sense_key, 1938 &asc, &ascq); 1939 1940 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1941 scsi_sense_print(&ccb.csio); 1942 } else { 1943 xpt_print_path(periph->path); 1944 printf("Synchronize cache failed, status " 1945 "== 0x%x, scsi status == 0x%x\n", 1946 ccb.ccb_h.status, ccb.csio.scsi_status); 1947 } 1948 } 1949 1950 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1951 cam_release_devq(ccb.ccb_h.path, 1952 /*relsim_flags*/0, 1953 /*reduction*/0, 1954 /*timeout*/0, 1955 /*getcount_only*/0); 1956 1957 } 1958 } 1959 1960 #else /* !_KERNEL */ 1961 1962 /* 1963 * XXX This is only left out of the kernel build to silence warnings. If, 1964 * for some reason this function is used in the kernel, the ifdefs should 1965 * be moved so it is included both in the kernel and userland. 1966 */ 1967 void 1968 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1969 void (*cbfcnp)(struct cam_periph *, union ccb *), 1970 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1971 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1972 u_int32_t timeout) 1973 { 1974 struct scsi_format_unit *scsi_cmd; 1975 1976 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1977 scsi_cmd->opcode = FORMAT_UNIT; 1978 scsi_cmd->byte2 = byte2; 1979 scsi_ulto2b(ileave, scsi_cmd->interleave); 1980 1981 cam_fill_csio(csio, 1982 retries, 1983 cbfcnp, 1984 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1985 tag_action, 1986 data_ptr, 1987 dxfer_len, 1988 sense_len, 1989 sizeof(*scsi_cmd), 1990 timeout); 1991 } 1992 1993 #endif /* _KERNEL */
Cache object: 92af077757eed2b9837c5378f27d1f5c
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