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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: releng/5.2/sys/cam/scsi/scsi_da.c 120906 2003-10-08 07:12:30Z thomas $"); 31 32 #ifdef _KERNEL 33 #include "opt_da.h" 34 #include "opt_hw_wdog.h" 35 #endif /* _KERNEL */ 36 37 #include <sys/param.h> 38 39 #ifdef _KERNEL 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/bio.h> 43 #include <sys/sysctl.h> 44 #include <sys/taskqueue.h> 45 #endif /* _KERNEL */ 46 47 #include <sys/devicestat.h> 48 #include <sys/conf.h> 49 #include <sys/eventhandler.h> 50 #include <sys/malloc.h> 51 #include <sys/cons.h> 52 53 #include <machine/md_var.h> 54 55 #include <vm/vm.h> 56 #include <vm/pmap.h> 57 58 #include <geom/geom_disk.h> 59 60 #ifndef _KERNEL 61 #include <stdio.h> 62 #include <string.h> 63 #endif /* _KERNEL */ 64 65 #include <cam/cam.h> 66 #include <cam/cam_ccb.h> 67 #include <cam/cam_periph.h> 68 #include <cam/cam_xpt_periph.h> 69 70 #include <cam/scsi/scsi_message.h> 71 72 #ifndef _KERNEL 73 #include <cam/scsi/scsi_da.h> 74 #endif /* !_KERNEL */ 75 76 #ifdef _KERNEL 77 typedef enum { 78 DA_STATE_PROBE, 79 DA_STATE_PROBE2, 80 DA_STATE_NORMAL 81 } da_state; 82 83 typedef enum { 84 DA_FLAG_PACK_INVALID = 0x001, 85 DA_FLAG_NEW_PACK = 0x002, 86 DA_FLAG_PACK_LOCKED = 0x004, 87 DA_FLAG_PACK_REMOVABLE = 0x008, 88 DA_FLAG_TAGGED_QUEUING = 0x010, 89 DA_FLAG_NEED_OTAG = 0x020, 90 DA_FLAG_WENT_IDLE = 0x040, 91 DA_FLAG_RETRY_UA = 0x080, 92 DA_FLAG_OPEN = 0x100, 93 DA_FLAG_SCTX_INIT = 0x200 94 } da_flags; 95 96 typedef enum { 97 DA_Q_NONE = 0x00, 98 DA_Q_NO_SYNC_CACHE = 0x01, 99 DA_Q_NO_6_BYTE = 0x02, 100 DA_Q_NO_PREVENT = 0x04 101 } da_quirks; 102 103 typedef enum { 104 DA_CCB_PROBE = 0x01, 105 DA_CCB_PROBE2 = 0x02, 106 DA_CCB_BUFFER_IO = 0x03, 107 DA_CCB_WAITING = 0x04, 108 DA_CCB_DUMP = 0x05, 109 DA_CCB_TYPE_MASK = 0x0F, 110 DA_CCB_RETRY_UA = 0x10 111 } da_ccb_state; 112 113 /* Offsets into our private area for storing information */ 114 #define ccb_state ppriv_field0 115 #define ccb_bp ppriv_ptr1 116 117 struct disk_params { 118 u_int8_t heads; 119 u_int32_t cylinders; 120 u_int8_t secs_per_track; 121 u_int32_t secsize; /* Number of bytes/sector */ 122 u_int64_t sectors; /* total number sectors */ 123 }; 124 125 struct da_softc { 126 struct bio_queue_head bio_queue; 127 SLIST_ENTRY(da_softc) links; 128 LIST_HEAD(, ccb_hdr) pending_ccbs; 129 da_state state; 130 da_flags flags; 131 da_quirks quirks; 132 int minimum_cmd_size; 133 int ordered_tag_count; 134 int outstanding_cmds; 135 struct disk_params params; 136 struct disk disk; 137 union ccb saved_ccb; 138 struct task sysctl_task; 139 struct sysctl_ctx_list sysctl_ctx; 140 struct sysctl_oid *sysctl_tree; 141 }; 142 143 struct da_quirk_entry { 144 struct scsi_inquiry_pattern inq_pat; 145 da_quirks quirks; 146 }; 147 148 static const char quantum[] = "QUANTUM"; 149 static const char microp[] = "MICROP"; 150 151 static struct da_quirk_entry da_quirk_table[] = 152 { 153 /* SPI, FC devices */ 154 { 155 /* 156 * Fujitsu M2513A MO drives. 157 * Tested devices: M2513A2 firmware versions 1200 & 1300. 158 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 159 * Reported by: W.Scholten <whs@xs4all.nl> 160 */ 161 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 162 /*quirks*/ DA_Q_NO_SYNC_CACHE 163 }, 164 { 165 /* See above. */ 166 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 167 /*quirks*/ DA_Q_NO_SYNC_CACHE 168 }, 169 { 170 /* 171 * This particular Fujitsu drive doesn't like the 172 * synchronize cache command. 173 * Reported by: Tom Jackson <toj@gorilla.net> 174 */ 175 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 176 /*quirks*/ DA_Q_NO_SYNC_CACHE 177 178 }, 179 { 180 /* 181 * This drive doesn't like the synchronize cache command 182 * either. Reported by: Matthew Jacob <mjacob@feral.com> 183 * in NetBSD PR kern/6027, August 24, 1998. 184 */ 185 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 186 /*quirks*/ DA_Q_NO_SYNC_CACHE 187 }, 188 { 189 /* 190 * This drive doesn't like the synchronize cache command 191 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 192 * (PR 8882). 193 */ 194 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 195 /*quirks*/ DA_Q_NO_SYNC_CACHE 196 }, 197 { 198 /* 199 * Doesn't like the synchronize cache command. 200 * Reported by: Blaz Zupan <blaz@gold.amis.net> 201 */ 202 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 203 /*quirks*/ DA_Q_NO_SYNC_CACHE 204 }, 205 { 206 /* 207 * Doesn't like the synchronize cache command. 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 work correctly with 6 byte reads/writes. 222 * Returns illegal request, and points to byte 9 of the 223 * 6-byte CDB. 224 * Reported by: Adam McDougall <bsdx@spawnet.com> 225 */ 226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 227 /*quirks*/ DA_Q_NO_6_BYTE 228 }, 229 { 230 /* See above. */ 231 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 232 /*quirks*/ DA_Q_NO_6_BYTE 233 }, 234 #ifdef DA_OLD_QUIRKS 235 /* USB floppy devices supported by umass(4) */ 236 { 237 /* 238 * This USB floppy drive uses the UFI command set. This 239 * command set is a derivative of the ATAPI command set and 240 * does not support READ_6 commands only READ_10. It also does 241 * not support sync cache (0x35). 242 */ 243 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 244 /*quirks*/ DA_Q_NO_SYNC_CACHE 245 }, 246 { 247 /* Another USB floppy */ 248 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 249 /*quirks*/ DA_Q_NO_SYNC_CACHE 250 }, 251 { 252 /* 253 * The vendor, product and version strings coming from the 254 * controller are null terminated instead of being padded with 255 * spaces. The trailing wildcard character '*' is required. 256 */ 257 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 258 /*quirks*/ DA_Q_NO_SYNC_CACHE 259 }, 260 { 261 /* 262 * SmartDisk (Mitsumi) USB floppy drive 263 * PR: kern/50226 264 */ 265 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 266 /*quirks*/ DA_Q_NO_SYNC_CACHE 267 }, 268 /* USB mass storage devices supported by umass(4) */ 269 { 270 /* 271 * Sony Memory Stick adapter MSAC-US1 and 272 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 273 * Make all sony MS* products use this quirk. 274 */ 275 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 276 /*quirks*/ DA_Q_NO_SYNC_CACHE 277 }, 278 { 279 /* 280 * Sony Memory Stick adapter for the CLIE series 281 * of PalmOS PDA's 282 */ 283 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 284 /*quirks*/ DA_Q_NO_SYNC_CACHE 285 }, 286 { 287 /* 288 * Intelligent Stick USB disk-on-key 289 * PR: kern/53005 290 */ 291 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card", 292 "IntelligentStick*", "*"}, 293 /*quirks*/ DA_Q_NO_SYNC_CACHE 294 }, 295 { 296 /* 297 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 298 */ 299 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 300 /*quirks*/ DA_Q_NO_SYNC_CACHE 301 }, 302 { 303 /* 304 * Microtech USB CameraMate 305 */ 306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 307 "Compact Flash*", "*"}, 308 /*quirks*/ DA_Q_NO_SYNC_CACHE 309 }, 310 { 311 /* 312 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 313 */ 314 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 315 /*quirks*/ DA_Q_NO_SYNC_CACHE 316 }, 317 { 318 /* 319 * Olympus digital cameras (E-100RS, E-10). 320 */ 321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 322 /*quirks*/ DA_Q_NO_SYNC_CACHE 323 }, 324 { 325 /* 326 * KingByte Pen Drives 327 */ 328 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 329 /*quirks*/ DA_Q_NO_SYNC_CACHE 330 }, 331 { 332 /* 333 * Minolta Dimage E203 334 */ 335 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 336 /*quirks*/ DA_Q_NO_SYNC_CACHE 337 }, 338 { 339 /* 340 * Daisy Technology PhotoClip on Zoran chip 341 * PR: kern/43580 342 */ 343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 344 /*quirks*/ DA_Q_NO_SYNC_CACHE 345 }, 346 { 347 /* 348 * Sony USB Key-Storage 349 * PR: kern/46386 350 */ 351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 352 /*quirks*/ DA_Q_NO_SYNC_CACHE 353 }, 354 #endif /* DA_OLD_QUIRKS */ 355 { 356 /* 357 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 358 * PR: kern/51675 359 */ 360 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 361 /*quirks*/ DA_Q_NO_SYNC_CACHE 362 }, 363 { 364 /* 365 * Jungsoft NEXDISK USB flash key 366 * PR: kern/54737 367 */ 368 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 369 /*quirks*/ DA_Q_NO_SYNC_CACHE 370 }, 371 { 372 /* 373 * Creative Nomad MUVO mp3 player (USB) 374 * PR: kern/53094 375 */ 376 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 377 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 378 }, 379 }; 380 381 static disk_strategy_t dastrategy; 382 static dumper_t dadump; 383 static periph_init_t dainit; 384 static void daasync(void *callback_arg, u_int32_t code, 385 struct cam_path *path, void *arg); 386 static void dasysctlinit(void *context, int pending); 387 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 388 static periph_ctor_t daregister; 389 static periph_dtor_t dacleanup; 390 static periph_start_t dastart; 391 static periph_oninv_t daoninvalidate; 392 static void dadone(struct cam_periph *periph, 393 union ccb *done_ccb); 394 static int daerror(union ccb *ccb, u_int32_t cam_flags, 395 u_int32_t sense_flags); 396 static void daprevent(struct cam_periph *periph, int action); 397 static int dagetcapacity(struct cam_periph *periph); 398 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 399 uint64_t maxsector); 400 static timeout_t dasendorderedtag; 401 static void dashutdown(void *arg, int howto); 402 403 #ifndef DA_DEFAULT_TIMEOUT 404 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 405 #endif 406 407 #ifndef DA_DEFAULT_RETRY 408 #define DA_DEFAULT_RETRY 4 409 #endif 410 411 static int da_retry_count = DA_DEFAULT_RETRY; 412 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 413 414 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 415 "CAM Direct Access Disk driver"); 416 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 417 &da_retry_count, 0, "Normal I/O retry count"); 418 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 419 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 420 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 421 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 422 423 /* 424 * DA_ORDEREDTAG_INTERVAL determines how often, relative 425 * to the default timeout, we check to see whether an ordered 426 * tagged transaction is appropriate to prevent simple tag 427 * starvation. Since we'd like to ensure that there is at least 428 * 1/2 of the timeout length left for a starved transaction to 429 * complete after we've sent an ordered tag, we must poll at least 430 * four times in every timeout period. This takes care of the worst 431 * case where a starved transaction starts during an interval that 432 * meets the requirement "don't send an ordered tag" test so it takes 433 * us two intervals to determine that a tag must be sent. 434 */ 435 #ifndef DA_ORDEREDTAG_INTERVAL 436 #define DA_ORDEREDTAG_INTERVAL 4 437 #endif 438 439 static struct periph_driver dadriver = 440 { 441 dainit, "da", 442 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 443 }; 444 445 PERIPHDRIVER_DECLARE(da, dadriver); 446 447 static SLIST_HEAD(,da_softc) softc_list; 448 449 static int 450 daopen(struct disk *dp) 451 { 452 struct cam_periph *periph; 453 struct da_softc *softc; 454 int unit; 455 int error; 456 int s; 457 458 s = splsoftcam(); 459 periph = (struct cam_periph *)dp->d_drv1; 460 unit = periph->unit_number; 461 if (periph == NULL) { 462 splx(s); 463 return (ENXIO); 464 } 465 466 softc = (struct da_softc *)periph->softc; 467 468 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 469 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 470 unit)); 471 472 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 473 return (error); /* error code from tsleep */ 474 475 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 476 return(ENXIO); 477 softc->flags |= DA_FLAG_OPEN; 478 479 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 480 /* Invalidate our pack information. */ 481 softc->flags &= ~DA_FLAG_PACK_INVALID; 482 } 483 splx(s); 484 485 error = dagetcapacity(periph); 486 487 if (error == 0) { 488 489 softc->disk.d_sectorsize = softc->params.secsize; 490 softc->disk.d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 491 /* XXX: these are not actually "firmware" values, so they may be wrong */ 492 softc->disk.d_fwsectors = softc->params.secs_per_track; 493 softc->disk.d_fwheads = softc->params.heads; 494 softc->disk.d_devstat->block_size = softc->params.secsize; 495 softc->disk.d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 496 } 497 498 if (error == 0) { 499 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 500 (softc->quirks & DA_Q_NO_PREVENT) == 0) 501 daprevent(periph, PR_PREVENT); 502 } else { 503 softc->flags &= ~DA_FLAG_OPEN; 504 cam_periph_release(periph); 505 } 506 cam_periph_unlock(periph); 507 return (error); 508 } 509 510 static int 511 daclose(struct disk *dp) 512 { 513 struct cam_periph *periph; 514 struct da_softc *softc; 515 int error; 516 517 periph = (struct cam_periph *)dp->d_drv1; 518 if (periph == NULL) 519 return (ENXIO); 520 521 softc = (struct da_softc *)periph->softc; 522 523 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 524 return (error); /* error code from tsleep */ 525 } 526 527 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 528 union ccb *ccb; 529 530 ccb = cam_periph_getccb(periph, /*priority*/1); 531 532 scsi_synchronize_cache(&ccb->csio, 533 /*retries*/1, 534 /*cbfcnp*/dadone, 535 MSG_SIMPLE_Q_TAG, 536 /*begin_lba*/0,/* Cover the whole disk */ 537 /*lb_count*/0, 538 SSD_FULL_SIZE, 539 5 * 60 * 1000); 540 541 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 542 /*sense_flags*/SF_RETRY_UA, 543 softc->disk.d_devstat); 544 545 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 546 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 547 CAM_SCSI_STATUS_ERROR) { 548 int asc, ascq; 549 int sense_key, error_code; 550 551 scsi_extract_sense(&ccb->csio.sense_data, 552 &error_code, 553 &sense_key, 554 &asc, &ascq); 555 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 556 scsi_sense_print(&ccb->csio); 557 } else { 558 xpt_print_path(periph->path); 559 printf("Synchronize cache failed, status " 560 "== 0x%x, scsi status == 0x%x\n", 561 ccb->csio.ccb_h.status, 562 ccb->csio.scsi_status); 563 } 564 } 565 566 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 567 cam_release_devq(ccb->ccb_h.path, 568 /*relsim_flags*/0, 569 /*reduction*/0, 570 /*timeout*/0, 571 /*getcount_only*/0); 572 573 xpt_release_ccb(ccb); 574 575 } 576 577 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 578 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 579 daprevent(periph, PR_ALLOW); 580 /* 581 * If we've got removeable media, mark the blocksize as 582 * unavailable, since it could change when new media is 583 * inserted. 584 */ 585 softc->disk.d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 586 } 587 588 softc->flags &= ~DA_FLAG_OPEN; 589 cam_periph_unlock(periph); 590 cam_periph_release(periph); 591 return (0); 592 } 593 594 /* 595 * Actually translate the requested transfer into one the physical driver 596 * can understand. The transfer is described by a buf and will include 597 * only one physical transfer. 598 */ 599 static void 600 dastrategy(struct bio *bp) 601 { 602 struct cam_periph *periph; 603 struct da_softc *softc; 604 int s; 605 606 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 607 if (periph == NULL) { 608 biofinish(bp, NULL, ENXIO); 609 return; 610 } 611 softc = (struct da_softc *)periph->softc; 612 #if 0 613 /* 614 * check it's not too big a transfer for our adapter 615 */ 616 scsi_minphys(bp,&sd_switch); 617 #endif 618 619 /* 620 * Mask interrupts so that the pack cannot be invalidated until 621 * after we are in the queue. Otherwise, we might not properly 622 * clean up one of the buffers. 623 */ 624 s = splbio(); 625 626 /* 627 * If the device has been made invalid, error out 628 */ 629 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 630 splx(s); 631 biofinish(bp, NULL, ENXIO); 632 return; 633 } 634 635 /* 636 * Place it in the queue of disk activities for this disk 637 */ 638 bioq_disksort(&softc->bio_queue, bp); 639 640 splx(s); 641 642 /* 643 * Schedule ourselves for performing the work. 644 */ 645 xpt_schedule(periph, /* XXX priority */1); 646 647 return; 648 } 649 650 static int 651 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 652 { 653 struct cam_periph *periph; 654 struct da_softc *softc; 655 u_int secsize; 656 struct ccb_scsiio csio; 657 struct disk *dp; 658 659 dp = arg; 660 periph = dp->d_drv1; 661 if (periph == NULL) 662 return (ENXIO); 663 softc = (struct da_softc *)periph->softc; 664 secsize = softc->params.secsize; 665 666 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 667 return (ENXIO); 668 669 if (length > 0) { 670 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 671 csio.ccb_h.ccb_state = DA_CCB_DUMP; 672 scsi_read_write(&csio, 673 /*retries*/1, 674 dadone, 675 MSG_ORDERED_Q_TAG, 676 /*read*/FALSE, 677 /*byte2*/0, 678 /*minimum_cmd_size*/ softc->minimum_cmd_size, 679 offset / secsize, 680 length / secsize, 681 /*data_ptr*/(u_int8_t *) virtual, 682 /*dxfer_len*/length, 683 /*sense_len*/SSD_FULL_SIZE, 684 DA_DEFAULT_TIMEOUT * 1000); 685 xpt_polled_action((union ccb *)&csio); 686 687 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 688 printf("Aborting dump due to I/O error.\n"); 689 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 690 CAM_SCSI_STATUS_ERROR) 691 scsi_sense_print(&csio); 692 else 693 printf("status == 0x%x, scsi status == 0x%x\n", 694 csio.ccb_h.status, csio.scsi_status); 695 return(EIO); 696 } 697 return(0); 698 } 699 700 /* 701 * Sync the disk cache contents to the physical media. 702 */ 703 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 704 705 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 706 csio.ccb_h.ccb_state = DA_CCB_DUMP; 707 scsi_synchronize_cache(&csio, 708 /*retries*/1, 709 /*cbfcnp*/dadone, 710 MSG_SIMPLE_Q_TAG, 711 /*begin_lba*/0,/* Cover the whole disk */ 712 /*lb_count*/0, 713 SSD_FULL_SIZE, 714 5 * 60 * 1000); 715 xpt_polled_action((union ccb *)&csio); 716 717 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 718 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 719 CAM_SCSI_STATUS_ERROR) { 720 int asc, ascq; 721 int sense_key, error_code; 722 723 scsi_extract_sense(&csio.sense_data, 724 &error_code, 725 &sense_key, 726 &asc, &ascq); 727 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 728 scsi_sense_print(&csio); 729 } else { 730 xpt_print_path(periph->path); 731 printf("Synchronize cache failed, status " 732 "== 0x%x, scsi status == 0x%x\n", 733 csio.ccb_h.status, csio.scsi_status); 734 } 735 } 736 } 737 return (0); 738 } 739 740 static void 741 dainit(void) 742 { 743 cam_status status; 744 struct cam_path *path; 745 746 SLIST_INIT(&softc_list); 747 748 /* 749 * Install a global async callback. This callback will 750 * receive async callbacks like "new device found". 751 */ 752 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 753 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 754 755 if (status == CAM_REQ_CMP) { 756 struct ccb_setasync csa; 757 758 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 759 csa.ccb_h.func_code = XPT_SASYNC_CB; 760 csa.event_enable = AC_FOUND_DEVICE; 761 csa.callback = daasync; 762 csa.callback_arg = NULL; 763 xpt_action((union ccb *)&csa); 764 status = csa.ccb_h.status; 765 xpt_free_path(path); 766 } 767 768 if (status != CAM_REQ_CMP) { 769 printf("da: Failed to attach master async callback " 770 "due to status 0x%x!\n", status); 771 } else { 772 773 /* 774 * Schedule a periodic event to occasionally send an 775 * ordered tag to a device. 776 */ 777 timeout(dasendorderedtag, NULL, 778 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 779 780 /* Register our shutdown event handler */ 781 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 782 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 783 printf("dainit: shutdown event registration failed!\n"); 784 } 785 } 786 787 static void 788 daoninvalidate(struct cam_periph *periph) 789 { 790 int s; 791 struct da_softc *softc; 792 struct ccb_setasync csa; 793 794 softc = (struct da_softc *)periph->softc; 795 796 /* 797 * De-register any async callbacks. 798 */ 799 xpt_setup_ccb(&csa.ccb_h, periph->path, 800 /* priority */ 5); 801 csa.ccb_h.func_code = XPT_SASYNC_CB; 802 csa.event_enable = 0; 803 csa.callback = daasync; 804 csa.callback_arg = periph; 805 xpt_action((union ccb *)&csa); 806 807 softc->flags |= DA_FLAG_PACK_INVALID; 808 809 /* 810 * Although the oninvalidate() routines are always called at 811 * splsoftcam, we need to be at splbio() here to keep the buffer 812 * queue from being modified while we traverse it. 813 */ 814 s = splbio(); 815 816 /* 817 * Return all queued I/O with ENXIO. 818 * XXX Handle any transactions queued to the card 819 * with XPT_ABORT_CCB. 820 */ 821 bioq_flush(&softc->bio_queue, NULL, ENXIO); 822 splx(s); 823 824 SLIST_REMOVE(&softc_list, softc, da_softc, links); 825 826 xpt_print_path(periph->path); 827 printf("lost device\n"); 828 } 829 830 static void 831 dacleanup(struct cam_periph *periph) 832 { 833 struct da_softc *softc; 834 835 softc = (struct da_softc *)periph->softc; 836 837 xpt_print_path(periph->path); 838 printf("removing device entry\n"); 839 /* 840 * If we can't free the sysctl tree, oh well... 841 */ 842 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 843 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 844 xpt_print_path(periph->path); 845 printf("can't remove sysctl context\n"); 846 } 847 disk_destroy(&softc->disk); 848 free(softc, M_DEVBUF); 849 } 850 851 static void 852 daasync(void *callback_arg, u_int32_t code, 853 struct cam_path *path, void *arg) 854 { 855 struct cam_periph *periph; 856 857 periph = (struct cam_periph *)callback_arg; 858 switch (code) { 859 case AC_FOUND_DEVICE: 860 { 861 struct ccb_getdev *cgd; 862 cam_status status; 863 864 cgd = (struct ccb_getdev *)arg; 865 if (cgd == NULL) 866 break; 867 868 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 869 && SID_TYPE(&cgd->inq_data) != T_RBC 870 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 871 break; 872 873 /* 874 * Allocate a peripheral instance for 875 * this device and start the probe 876 * process. 877 */ 878 status = cam_periph_alloc(daregister, daoninvalidate, 879 dacleanup, dastart, 880 "da", CAM_PERIPH_BIO, 881 cgd->ccb_h.path, daasync, 882 AC_FOUND_DEVICE, cgd); 883 884 if (status != CAM_REQ_CMP 885 && status != CAM_REQ_INPROG) 886 printf("daasync: Unable to attach to new device " 887 "due to status 0x%x\n", status); 888 break; 889 } 890 case AC_SENT_BDR: 891 case AC_BUS_RESET: 892 { 893 struct da_softc *softc; 894 struct ccb_hdr *ccbh; 895 int s; 896 897 softc = (struct da_softc *)periph->softc; 898 s = splsoftcam(); 899 /* 900 * Don't fail on the expected unit attention 901 * that will occur. 902 */ 903 softc->flags |= DA_FLAG_RETRY_UA; 904 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 905 ccbh->ccb_state |= DA_CCB_RETRY_UA; 906 splx(s); 907 /* FALLTHROUGH*/ 908 } 909 default: 910 cam_periph_async(periph, code, path, arg); 911 break; 912 } 913 } 914 915 static void 916 dasysctlinit(void *context, int pending) 917 { 918 struct cam_periph *periph; 919 struct da_softc *softc; 920 char tmpstr[80], tmpstr2[80]; 921 922 periph = (struct cam_periph *)context; 923 softc = (struct da_softc *)periph->softc; 924 925 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 926 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 927 928 mtx_lock(&Giant); 929 sysctl_ctx_init(&softc->sysctl_ctx); 930 softc->flags |= DA_FLAG_SCTX_INIT; 931 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 932 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 933 CTLFLAG_RD, 0, tmpstr); 934 if (softc->sysctl_tree == NULL) { 935 printf("dasysctlinit: unable to allocate sysctl tree\n"); 936 return; 937 } 938 939 /* 940 * Now register the sysctl handler, so the user can the value on 941 * the fly. 942 */ 943 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 944 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 945 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 946 "Minimum CDB size"); 947 948 mtx_unlock(&Giant); 949 } 950 951 static int 952 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 953 { 954 int error, value; 955 956 value = *(int *)arg1; 957 958 error = sysctl_handle_int(oidp, &value, 0, req); 959 960 if ((error != 0) 961 || (req->newptr == NULL)) 962 return (error); 963 964 /* 965 * Acceptable values here are 6, 10, 12 or 16. 966 */ 967 if (value < 6) 968 value = 6; 969 else if ((value > 6) 970 && (value <= 10)) 971 value = 10; 972 else if ((value > 10) 973 && (value <= 12)) 974 value = 12; 975 else if (value > 12) 976 value = 16; 977 978 *(int *)arg1 = value; 979 980 return (0); 981 } 982 983 static cam_status 984 daregister(struct cam_periph *periph, void *arg) 985 { 986 int s; 987 struct da_softc *softc; 988 struct ccb_setasync csa; 989 struct ccb_pathinq cpi; 990 struct ccb_getdev *cgd; 991 char tmpstr[80]; 992 caddr_t match; 993 994 cgd = (struct ccb_getdev *)arg; 995 if (periph == NULL) { 996 printf("daregister: periph was NULL!!\n"); 997 return(CAM_REQ_CMP_ERR); 998 } 999 1000 if (cgd == NULL) { 1001 printf("daregister: no getdev CCB, can't register device\n"); 1002 return(CAM_REQ_CMP_ERR); 1003 } 1004 1005 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1006 M_NOWAIT|M_ZERO); 1007 1008 if (softc == NULL) { 1009 printf("daregister: Unable to probe new device. " 1010 "Unable to allocate softc\n"); 1011 return(CAM_REQ_CMP_ERR); 1012 } 1013 1014 LIST_INIT(&softc->pending_ccbs); 1015 softc->state = DA_STATE_PROBE; 1016 bioq_init(&softc->bio_queue); 1017 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1018 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1019 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1020 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1021 1022 periph->softc = softc; 1023 1024 /* 1025 * See if this device has any quirks. 1026 */ 1027 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1028 (caddr_t)da_quirk_table, 1029 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1030 sizeof(*da_quirk_table), scsi_inquiry_match); 1031 1032 if (match != NULL) 1033 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1034 else 1035 softc->quirks = DA_Q_NONE; 1036 1037 /* Check if the SIM does not want 6 byte commands */ 1038 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1039 cpi.ccb_h.func_code = XPT_PATH_INQ; 1040 xpt_action((union ccb *)&cpi); 1041 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1042 softc->quirks |= DA_Q_NO_6_BYTE; 1043 1044 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1045 1046 /* 1047 * RBC devices don't have to support READ(6), only READ(10). 1048 */ 1049 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1050 softc->minimum_cmd_size = 10; 1051 else 1052 softc->minimum_cmd_size = 6; 1053 1054 /* 1055 * Load the user's default, if any. 1056 */ 1057 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1058 periph->unit_number); 1059 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1060 1061 /* 1062 * 6, 10, 12 and 16 are the currently permissible values. 1063 */ 1064 if (softc->minimum_cmd_size < 6) 1065 softc->minimum_cmd_size = 6; 1066 else if ((softc->minimum_cmd_size > 6) 1067 && (softc->minimum_cmd_size <= 10)) 1068 softc->minimum_cmd_size = 10; 1069 else if ((softc->minimum_cmd_size > 10) 1070 && (softc->minimum_cmd_size <= 12)) 1071 softc->minimum_cmd_size = 12; 1072 else if (softc->minimum_cmd_size > 12) 1073 softc->minimum_cmd_size = 16; 1074 1075 /* 1076 * Block our timeout handler while we 1077 * add this softc to the dev list. 1078 */ 1079 s = splsoftclock(); 1080 SLIST_INSERT_HEAD(&softc_list, softc, links); 1081 splx(s); 1082 1083 /* 1084 * Register this media as a disk 1085 */ 1086 1087 softc->disk.d_open = daopen; 1088 softc->disk.d_close = daclose; 1089 softc->disk.d_strategy = dastrategy; 1090 softc->disk.d_dump = dadump; 1091 softc->disk.d_name = "da"; 1092 softc->disk.d_drv1 = periph; 1093 softc->disk.d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1094 disk_create(periph->unit_number, &softc->disk, 0, NULL, NULL); 1095 1096 /* 1097 * Add async callbacks for bus reset and 1098 * bus device reset calls. I don't bother 1099 * checking if this fails as, in most cases, 1100 * the system will function just fine without 1101 * them and the only alternative would be to 1102 * not attach the device on failure. 1103 */ 1104 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1105 csa.ccb_h.func_code = XPT_SASYNC_CB; 1106 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1107 csa.callback = daasync; 1108 csa.callback_arg = periph; 1109 xpt_action((union ccb *)&csa); 1110 /* 1111 * Lock this peripheral until we are setup. 1112 * This first call can't block 1113 */ 1114 (void)cam_periph_lock(periph, PRIBIO); 1115 xpt_schedule(periph, /*priority*/5); 1116 1117 return(CAM_REQ_CMP); 1118 } 1119 1120 static void 1121 dastart(struct cam_periph *periph, union ccb *start_ccb) 1122 { 1123 struct da_softc *softc; 1124 1125 softc = (struct da_softc *)periph->softc; 1126 1127 1128 switch (softc->state) { 1129 case DA_STATE_NORMAL: 1130 { 1131 /* Pull a buffer from the queue and get going on it */ 1132 struct bio *bp; 1133 int s; 1134 1135 /* 1136 * See if there is a buf with work for us to do.. 1137 */ 1138 s = splbio(); 1139 bp = bioq_first(&softc->bio_queue); 1140 if (periph->immediate_priority <= periph->pinfo.priority) { 1141 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1142 ("queuing for immediate ccb\n")); 1143 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1144 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1145 periph_links.sle); 1146 periph->immediate_priority = CAM_PRIORITY_NONE; 1147 splx(s); 1148 wakeup(&periph->ccb_list); 1149 } else if (bp == NULL) { 1150 splx(s); 1151 xpt_release_ccb(start_ccb); 1152 } else { 1153 int oldspl; 1154 u_int8_t tag_code; 1155 1156 bioq_remove(&softc->bio_queue, bp); 1157 1158 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1159 softc->flags &= ~DA_FLAG_NEED_OTAG; 1160 softc->ordered_tag_count++; 1161 tag_code = MSG_ORDERED_Q_TAG; 1162 } else { 1163 tag_code = MSG_SIMPLE_Q_TAG; 1164 } 1165 scsi_read_write(&start_ccb->csio, 1166 /*retries*/da_retry_count, 1167 /*cbfcnp*/dadone, 1168 /*tag_action*/tag_code, 1169 /*read_op*/bp->bio_cmd == BIO_READ, 1170 /*byte2*/0, 1171 softc->minimum_cmd_size, 1172 /*lba*/bp->bio_pblkno, 1173 /*block_count*/bp->bio_bcount / 1174 softc->params.secsize, 1175 /*data_ptr*/ bp->bio_data, 1176 /*dxfer_len*/ bp->bio_bcount, 1177 /*sense_len*/SSD_FULL_SIZE, 1178 /*timeout*/da_default_timeout*1000); 1179 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1180 1181 /* 1182 * Block out any asyncronous callbacks 1183 * while we touch the pending ccb list. 1184 */ 1185 oldspl = splcam(); 1186 LIST_INSERT_HEAD(&softc->pending_ccbs, 1187 &start_ccb->ccb_h, periph_links.le); 1188 softc->outstanding_cmds++; 1189 splx(oldspl); 1190 1191 /* We expect a unit attention from this device */ 1192 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1193 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1194 softc->flags &= ~DA_FLAG_RETRY_UA; 1195 } 1196 1197 start_ccb->ccb_h.ccb_bp = bp; 1198 bp = bioq_first(&softc->bio_queue); 1199 splx(s); 1200 1201 xpt_action(start_ccb); 1202 } 1203 1204 if (bp != NULL) { 1205 /* Have more work to do, so ensure we stay scheduled */ 1206 xpt_schedule(periph, /* XXX priority */1); 1207 } 1208 break; 1209 } 1210 case DA_STATE_PROBE: 1211 { 1212 struct ccb_scsiio *csio; 1213 struct scsi_read_capacity_data *rcap; 1214 1215 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1216 M_TEMP, 1217 M_NOWAIT); 1218 if (rcap == NULL) { 1219 printf("dastart: Couldn't malloc read_capacity data\n"); 1220 /* da_free_periph??? */ 1221 break; 1222 } 1223 csio = &start_ccb->csio; 1224 scsi_read_capacity(csio, 1225 /*retries*/4, 1226 dadone, 1227 MSG_SIMPLE_Q_TAG, 1228 rcap, 1229 SSD_FULL_SIZE, 1230 /*timeout*/5000); 1231 start_ccb->ccb_h.ccb_bp = NULL; 1232 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1233 xpt_action(start_ccb); 1234 break; 1235 } 1236 case DA_STATE_PROBE2: 1237 { 1238 struct ccb_scsiio *csio; 1239 struct scsi_read_capacity_data_long *rcaplong; 1240 1241 rcaplong = (struct scsi_read_capacity_data_long *) 1242 malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT); 1243 if (rcaplong == NULL) { 1244 printf("dastart: Couldn't malloc read_capacity data\n"); 1245 /* da_free_periph??? */ 1246 break; 1247 } 1248 csio = &start_ccb->csio; 1249 scsi_read_capacity_16(csio, 1250 /*retries*/ 4, 1251 /*cbfcnp*/ dadone, 1252 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1253 /*lba*/ 0, 1254 /*reladr*/ 0, 1255 /*pmi*/ 0, 1256 rcaplong, 1257 /*sense_len*/ SSD_FULL_SIZE, 1258 /*timeout*/ 60000); 1259 start_ccb->ccb_h.ccb_bp = NULL; 1260 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1261 xpt_action(start_ccb); 1262 break; 1263 } 1264 } 1265 } 1266 1267 static int 1268 cmd6workaround(union ccb *ccb) 1269 { 1270 struct scsi_rw_6 cmd6; 1271 struct scsi_rw_10 *cmd10; 1272 struct da_softc *softc; 1273 u_int8_t *cdb; 1274 int frozen; 1275 1276 cdb = ccb->csio.cdb_io.cdb_bytes; 1277 1278 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1279 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1280 (*cdb != READ_6 && *cdb != WRITE_6)) 1281 return 0; 1282 1283 xpt_print_path(ccb->ccb_h.path); 1284 printf("READ(6)/WRITE(6) not supported, " 1285 "increasing minimum_cmd_size to 10.\n"); 1286 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1287 softc->minimum_cmd_size = 10; 1288 1289 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1290 cmd10 = (struct scsi_rw_10 *)cdb; 1291 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1292 cmd10->byte2 = 0; 1293 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1294 cmd10->reserved = 0; 1295 scsi_ulto2b(cmd6.length, cmd10->length); 1296 cmd10->control = cmd6.control; 1297 ccb->csio.cdb_len = sizeof(*cmd10); 1298 1299 /* Requeue request, unfreezing queue if necessary */ 1300 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1301 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1302 xpt_action(ccb); 1303 if (frozen) { 1304 cam_release_devq(ccb->ccb_h.path, 1305 /*relsim_flags*/0, 1306 /*reduction*/0, 1307 /*timeout*/0, 1308 /*getcount_only*/0); 1309 } 1310 return (ERESTART); 1311 } 1312 1313 static void 1314 dadone(struct cam_periph *periph, union ccb *done_ccb) 1315 { 1316 struct da_softc *softc; 1317 struct ccb_scsiio *csio; 1318 1319 softc = (struct da_softc *)periph->softc; 1320 csio = &done_ccb->csio; 1321 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1322 case DA_CCB_BUFFER_IO: 1323 { 1324 struct bio *bp; 1325 int oldspl; 1326 1327 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1328 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1329 int error; 1330 int s; 1331 int sf; 1332 1333 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1334 sf = SF_RETRY_UA; 1335 else 1336 sf = 0; 1337 1338 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1339 if (error == ERESTART) { 1340 /* 1341 * A retry was scheuled, so 1342 * just return. 1343 */ 1344 return; 1345 } 1346 if (error != 0) { 1347 1348 s = splbio(); 1349 1350 if (error == ENXIO) { 1351 /* 1352 * Catastrophic error. Mark our pack as 1353 * invalid. 1354 */ 1355 /* XXX See if this is really a media 1356 * change first. 1357 */ 1358 xpt_print_path(periph->path); 1359 printf("Invalidating pack\n"); 1360 softc->flags |= DA_FLAG_PACK_INVALID; 1361 } 1362 1363 /* 1364 * return all queued I/O with EIO, so that 1365 * the client can retry these I/Os in the 1366 * proper order should it attempt to recover. 1367 */ 1368 bioq_flush(&softc->bio_queue, NULL, EIO); 1369 splx(s); 1370 bp->bio_error = error; 1371 bp->bio_resid = bp->bio_bcount; 1372 bp->bio_flags |= BIO_ERROR; 1373 } else { 1374 bp->bio_resid = csio->resid; 1375 bp->bio_error = 0; 1376 if (bp->bio_resid != 0) 1377 bp->bio_flags |= BIO_ERROR; 1378 } 1379 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1380 cam_release_devq(done_ccb->ccb_h.path, 1381 /*relsim_flags*/0, 1382 /*reduction*/0, 1383 /*timeout*/0, 1384 /*getcount_only*/0); 1385 } else { 1386 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1387 panic("REQ_CMP with QFRZN"); 1388 bp->bio_resid = csio->resid; 1389 if (csio->resid > 0) 1390 bp->bio_flags |= BIO_ERROR; 1391 } 1392 1393 /* 1394 * Block out any asyncronous callbacks 1395 * while we touch the pending ccb list. 1396 */ 1397 oldspl = splcam(); 1398 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1399 softc->outstanding_cmds--; 1400 if (softc->outstanding_cmds == 0) 1401 softc->flags |= DA_FLAG_WENT_IDLE; 1402 splx(oldspl); 1403 1404 biodone(bp); 1405 break; 1406 } 1407 case DA_CCB_PROBE: 1408 case DA_CCB_PROBE2: 1409 { 1410 struct scsi_read_capacity_data *rdcap; 1411 struct scsi_read_capacity_data_long *rcaplong; 1412 char announce_buf[80]; 1413 1414 rdcap = NULL; 1415 rcaplong = NULL; 1416 if (softc->state == DA_STATE_PROBE) 1417 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1418 else 1419 rcaplong = (struct scsi_read_capacity_data_long *) 1420 csio->data_ptr; 1421 1422 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1423 struct disk_params *dp; 1424 uint32_t block_size; 1425 uint64_t maxsector; 1426 1427 if (softc->state == DA_STATE_PROBE) { 1428 block_size = scsi_4btoul(rdcap->length); 1429 maxsector = scsi_4btoul(rdcap->addr); 1430 1431 /* 1432 * According to SBC-2, if the standard 10 1433 * byte READ CAPACITY command returns 2^32, 1434 * we should issue the 16 byte version of 1435 * the command, since the device in question 1436 * has more sectors than can be represented 1437 * with the short version of the command. 1438 */ 1439 if (maxsector == 0xffffffff) { 1440 softc->state = DA_STATE_PROBE2; 1441 free(rdcap, M_TEMP); 1442 xpt_release_ccb(done_ccb); 1443 xpt_schedule(periph, /*priority*/5); 1444 return; 1445 } 1446 } else { 1447 block_size = scsi_4btoul(rcaplong->length); 1448 maxsector = scsi_8btou64(rcaplong->addr); 1449 } 1450 dasetgeom(periph, block_size, maxsector); 1451 dp = &softc->params; 1452 snprintf(announce_buf, sizeof(announce_buf), 1453 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1454 (uintmax_t) (((uintmax_t)dp->secsize * 1455 dp->sectors) / (1024*1024)), 1456 (uintmax_t)dp->sectors, 1457 dp->secsize, dp->heads, dp->secs_per_track, 1458 dp->cylinders); 1459 } else { 1460 int error; 1461 1462 announce_buf[0] = '\0'; 1463 1464 /* 1465 * Retry any UNIT ATTENTION type errors. They 1466 * are expected at boot. 1467 */ 1468 error = daerror(done_ccb, CAM_RETRY_SELTO, 1469 SF_RETRY_UA|SF_NO_PRINT); 1470 if (error == ERESTART) { 1471 /* 1472 * A retry was scheuled, so 1473 * just return. 1474 */ 1475 return; 1476 } else if (error != 0) { 1477 struct scsi_sense_data *sense; 1478 int asc, ascq; 1479 int sense_key, error_code; 1480 int have_sense; 1481 cam_status status; 1482 struct ccb_getdev cgd; 1483 1484 /* Don't wedge this device's queue */ 1485 status = done_ccb->ccb_h.status; 1486 if ((status & CAM_DEV_QFRZN) != 0) 1487 cam_release_devq(done_ccb->ccb_h.path, 1488 /*relsim_flags*/0, 1489 /*reduction*/0, 1490 /*timeout*/0, 1491 /*getcount_only*/0); 1492 1493 1494 xpt_setup_ccb(&cgd.ccb_h, 1495 done_ccb->ccb_h.path, 1496 /* priority */ 1); 1497 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1498 xpt_action((union ccb *)&cgd); 1499 1500 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1501 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1502 || ((status & CAM_AUTOSNS_VALID) == 0)) 1503 have_sense = FALSE; 1504 else 1505 have_sense = TRUE; 1506 1507 if (have_sense) { 1508 sense = &csio->sense_data; 1509 scsi_extract_sense(sense, &error_code, 1510 &sense_key, 1511 &asc, &ascq); 1512 } 1513 /* 1514 * Attach to anything that claims to be a 1515 * direct access or optical disk device, 1516 * as long as it doesn't return a "Logical 1517 * unit not supported" (0x25) error. 1518 */ 1519 if ((have_sense) && (asc != 0x25) 1520 && (error_code == SSD_CURRENT_ERROR)) { 1521 const char *sense_key_desc; 1522 const char *asc_desc; 1523 1524 scsi_sense_desc(sense_key, asc, ascq, 1525 &cgd.inq_data, 1526 &sense_key_desc, 1527 &asc_desc); 1528 snprintf(announce_buf, 1529 sizeof(announce_buf), 1530 "Attempt to query device " 1531 "size failed: %s, %s", 1532 sense_key_desc, 1533 asc_desc); 1534 } else { 1535 if (have_sense) 1536 scsi_sense_print( 1537 &done_ccb->csio); 1538 else { 1539 xpt_print_path(periph->path); 1540 printf("got CAM status %#x\n", 1541 done_ccb->ccb_h.status); 1542 } 1543 1544 xpt_print_path(periph->path); 1545 printf("fatal error, failed" 1546 " to attach to device\n"); 1547 1548 /* 1549 * Free up resources. 1550 */ 1551 cam_periph_invalidate(periph); 1552 } 1553 } 1554 } 1555 free(csio->data_ptr, M_TEMP); 1556 if (announce_buf[0] != '\0') { 1557 xpt_announce_periph(periph, announce_buf); 1558 /* 1559 * Create our sysctl variables, now that we know 1560 * we have successfully attached. 1561 */ 1562 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1563 } 1564 softc->state = DA_STATE_NORMAL; 1565 /* 1566 * Since our peripheral may be invalidated by an error 1567 * above or an external event, we must release our CCB 1568 * before releasing the probe lock on the peripheral. 1569 * The peripheral will only go away once the last lock 1570 * is removed, and we need it around for the CCB release 1571 * operation. 1572 */ 1573 xpt_release_ccb(done_ccb); 1574 cam_periph_unlock(periph); 1575 return; 1576 } 1577 case DA_CCB_WAITING: 1578 { 1579 /* Caller will release the CCB */ 1580 wakeup(&done_ccb->ccb_h.cbfcnp); 1581 return; 1582 } 1583 case DA_CCB_DUMP: 1584 /* No-op. We're polling */ 1585 return; 1586 default: 1587 break; 1588 } 1589 xpt_release_ccb(done_ccb); 1590 } 1591 1592 static int 1593 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1594 { 1595 struct da_softc *softc; 1596 struct cam_periph *periph; 1597 int error; 1598 1599 periph = xpt_path_periph(ccb->ccb_h.path); 1600 softc = (struct da_softc *)periph->softc; 1601 1602 /* 1603 * Automatically detect devices that do not support 1604 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1605 */ 1606 error = 0; 1607 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1608 error = cmd6workaround(ccb); 1609 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1610 CAM_SCSI_STATUS_ERROR) 1611 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1612 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1613 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1614 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1615 int sense_key, error_code, asc, ascq; 1616 1617 scsi_extract_sense(&ccb->csio.sense_data, 1618 &error_code, &sense_key, &asc, &ascq); 1619 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1620 error = cmd6workaround(ccb); 1621 } 1622 if (error == ERESTART) 1623 return (ERESTART); 1624 1625 /* 1626 * XXX 1627 * Until we have a better way of doing pack validation, 1628 * don't treat UAs as errors. 1629 */ 1630 sense_flags |= SF_RETRY_UA; 1631 return(cam_periph_error(ccb, cam_flags, sense_flags, 1632 &softc->saved_ccb)); 1633 } 1634 1635 static void 1636 daprevent(struct cam_periph *periph, int action) 1637 { 1638 struct da_softc *softc; 1639 union ccb *ccb; 1640 int error; 1641 1642 softc = (struct da_softc *)periph->softc; 1643 1644 if (((action == PR_ALLOW) 1645 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1646 || ((action == PR_PREVENT) 1647 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1648 return; 1649 } 1650 1651 ccb = cam_periph_getccb(periph, /*priority*/1); 1652 1653 scsi_prevent(&ccb->csio, 1654 /*retries*/1, 1655 /*cbcfp*/dadone, 1656 MSG_SIMPLE_Q_TAG, 1657 action, 1658 SSD_FULL_SIZE, 1659 5000); 1660 1661 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1662 SF_RETRY_UA, softc->disk.d_devstat); 1663 1664 if (error == 0) { 1665 if (action == PR_ALLOW) 1666 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1667 else 1668 softc->flags |= DA_FLAG_PACK_LOCKED; 1669 } 1670 1671 xpt_release_ccb(ccb); 1672 } 1673 1674 static int 1675 dagetcapacity(struct cam_periph *periph) 1676 { 1677 struct da_softc *softc; 1678 union ccb *ccb; 1679 struct scsi_read_capacity_data *rcap; 1680 struct scsi_read_capacity_data_long *rcaplong; 1681 uint32_t block_len; 1682 uint64_t maxsector; 1683 int error; 1684 1685 softc = (struct da_softc *)periph->softc; 1686 block_len = 0; 1687 maxsector = 0; 1688 error = 0; 1689 1690 /* Do a read capacity */ 1691 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1692 M_TEMP, 1693 M_WAITOK); 1694 1695 ccb = cam_periph_getccb(periph, /*priority*/1); 1696 scsi_read_capacity(&ccb->csio, 1697 /*retries*/4, 1698 /*cbfncp*/dadone, 1699 MSG_SIMPLE_Q_TAG, 1700 rcap, 1701 SSD_FULL_SIZE, 1702 /*timeout*/60000); 1703 ccb->ccb_h.ccb_bp = NULL; 1704 1705 error = cam_periph_runccb(ccb, daerror, 1706 /*cam_flags*/CAM_RETRY_SELTO, 1707 /*sense_flags*/SF_RETRY_UA, 1708 softc->disk.d_devstat); 1709 1710 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1711 cam_release_devq(ccb->ccb_h.path, 1712 /*relsim_flags*/0, 1713 /*reduction*/0, 1714 /*timeout*/0, 1715 /*getcount_only*/0); 1716 1717 if (error == 0) { 1718 block_len = scsi_4btoul(rcap->length); 1719 maxsector = scsi_4btoul(rcap->addr); 1720 1721 if (maxsector != 0xffffffff) 1722 goto done; 1723 } else 1724 goto done; 1725 1726 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1727 1728 scsi_read_capacity_16(&ccb->csio, 1729 /*retries*/ 4, 1730 /*cbfcnp*/ dadone, 1731 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1732 /*lba*/ 0, 1733 /*reladr*/ 0, 1734 /*pmi*/ 0, 1735 rcaplong, 1736 /*sense_len*/ SSD_FULL_SIZE, 1737 /*timeout*/ 60000); 1738 ccb->ccb_h.ccb_bp = NULL; 1739 1740 error = cam_periph_runccb(ccb, daerror, 1741 /*cam_flags*/CAM_RETRY_SELTO, 1742 /*sense_flags*/SF_RETRY_UA, 1743 softc->disk.d_devstat); 1744 1745 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1746 cam_release_devq(ccb->ccb_h.path, 1747 /*relsim_flags*/0, 1748 /*reduction*/0, 1749 /*timeout*/0, 1750 /*getcount_only*/0); 1751 1752 if (error == 0) { 1753 block_len = scsi_4btoul(rcaplong->length); 1754 maxsector = scsi_8btou64(rcaplong->addr); 1755 } 1756 1757 done: 1758 1759 if (error == 0) 1760 dasetgeom(periph, block_len, maxsector); 1761 1762 xpt_release_ccb(ccb); 1763 1764 free(rcap, M_TEMP); 1765 1766 return (error); 1767 } 1768 1769 static void 1770 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1771 { 1772 struct ccb_calc_geometry ccg; 1773 struct da_softc *softc; 1774 struct disk_params *dp; 1775 1776 softc = (struct da_softc *)periph->softc; 1777 1778 dp = &softc->params; 1779 dp->secsize = block_len; 1780 dp->sectors = maxsector + 1; 1781 /* 1782 * Have the controller provide us with a geometry 1783 * for this disk. The only time the geometry 1784 * matters is when we boot and the controller 1785 * is the only one knowledgeable enough to come 1786 * up with something that will make this a bootable 1787 * device. 1788 */ 1789 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1790 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1791 ccg.block_size = dp->secsize; 1792 ccg.volume_size = dp->sectors; 1793 ccg.heads = 0; 1794 ccg.secs_per_track = 0; 1795 ccg.cylinders = 0; 1796 xpt_action((union ccb*)&ccg); 1797 dp->heads = ccg.heads; 1798 dp->secs_per_track = ccg.secs_per_track; 1799 dp->cylinders = ccg.cylinders; 1800 } 1801 1802 static void 1803 dasendorderedtag(void *arg) 1804 { 1805 struct da_softc *softc; 1806 int s; 1807 1808 for (softc = SLIST_FIRST(&softc_list); 1809 softc != NULL; 1810 softc = SLIST_NEXT(softc, links)) { 1811 s = splsoftcam(); 1812 if ((softc->ordered_tag_count == 0) 1813 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1814 softc->flags |= DA_FLAG_NEED_OTAG; 1815 } 1816 if (softc->outstanding_cmds > 0) 1817 softc->flags &= ~DA_FLAG_WENT_IDLE; 1818 1819 softc->ordered_tag_count = 0; 1820 splx(s); 1821 } 1822 /* Queue us up again */ 1823 timeout(dasendorderedtag, NULL, 1824 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1825 } 1826 1827 /* 1828 * Step through all DA peripheral drivers, and if the device is still open, 1829 * sync the disk cache to physical media. 1830 */ 1831 static void 1832 dashutdown(void * arg, int howto) 1833 { 1834 struct cam_periph *periph; 1835 struct da_softc *softc; 1836 1837 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1838 union ccb ccb; 1839 softc = (struct da_softc *)periph->softc; 1840 1841 /* 1842 * We only sync the cache if the drive is still open, and 1843 * if the drive is capable of it.. 1844 */ 1845 if (((softc->flags & DA_FLAG_OPEN) == 0) 1846 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1847 continue; 1848 1849 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1850 1851 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1852 scsi_synchronize_cache(&ccb.csio, 1853 /*retries*/1, 1854 /*cbfcnp*/dadone, 1855 MSG_SIMPLE_Q_TAG, 1856 /*begin_lba*/0, /* whole disk */ 1857 /*lb_count*/0, 1858 SSD_FULL_SIZE, 1859 60 * 60 * 1000); 1860 1861 xpt_polled_action(&ccb); 1862 1863 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1864 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1865 CAM_SCSI_STATUS_ERROR) 1866 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1867 int error_code, sense_key, asc, ascq; 1868 1869 scsi_extract_sense(&ccb.csio.sense_data, 1870 &error_code, &sense_key, 1871 &asc, &ascq); 1872 1873 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1874 scsi_sense_print(&ccb.csio); 1875 } else { 1876 xpt_print_path(periph->path); 1877 printf("Synchronize cache failed, status " 1878 "== 0x%x, scsi status == 0x%x\n", 1879 ccb.ccb_h.status, ccb.csio.scsi_status); 1880 } 1881 } 1882 1883 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1884 cam_release_devq(ccb.ccb_h.path, 1885 /*relsim_flags*/0, 1886 /*reduction*/0, 1887 /*timeout*/0, 1888 /*getcount_only*/0); 1889 1890 } 1891 } 1892 1893 #else /* !_KERNEL */ 1894 1895 /* 1896 * XXX This is only left out of the kernel build to silence warnings. If, 1897 * for some reason this function is used in the kernel, the ifdefs should 1898 * be moved so it is included both in the kernel and userland. 1899 */ 1900 void 1901 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1902 void (*cbfcnp)(struct cam_periph *, union ccb *), 1903 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1904 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1905 u_int32_t timeout) 1906 { 1907 struct scsi_format_unit *scsi_cmd; 1908 1909 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1910 scsi_cmd->opcode = FORMAT_UNIT; 1911 scsi_cmd->byte2 = byte2; 1912 scsi_ulto2b(ileave, scsi_cmd->interleave); 1913 1914 cam_fill_csio(csio, 1915 retries, 1916 cbfcnp, 1917 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1918 tag_action, 1919 data_ptr, 1920 dxfer_len, 1921 sense_len, 1922 sizeof(*scsi_cmd), 1923 timeout); 1924 } 1925 1926 #endif /* _KERNEL */
Cache object: a7fe31f9951e6d4a2c8445a4ee11844c
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