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 * $FreeBSD$ 29 */ 30 31 #ifdef _KERNEL 32 #include "opt_hw_wdog.h" 33 #endif /* _KERNEL */ 34 35 #include <sys/param.h> 36 37 #ifdef _KERNEL 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/bio.h> 41 #include <sys/sysctl.h> 42 #endif /* _KERNEL */ 43 44 #include <sys/devicestat.h> 45 #include <sys/conf.h> 46 #include <sys/disk.h> 47 #include <sys/eventhandler.h> 48 #include <sys/malloc.h> 49 #include <sys/cons.h> 50 51 #include <machine/md_var.h> 52 53 #include <vm/vm.h> 54 #include <vm/pmap.h> 55 56 #ifndef _KERNEL 57 #include <stdio.h> 58 #include <string.h> 59 #endif /* _KERNEL */ 60 61 #include <cam/cam.h> 62 #include <cam/cam_ccb.h> 63 #include <cam/cam_periph.h> 64 #include <cam/cam_xpt_periph.h> 65 66 #include <cam/scsi/scsi_message.h> 67 68 #ifndef _KERNEL 69 #include <cam/scsi/scsi_da.h> 70 #endif /* !_KERNEL */ 71 72 #ifdef _KERNEL 73 typedef enum { 74 DA_STATE_PROBE, 75 DA_STATE_NORMAL 76 } da_state; 77 78 typedef enum { 79 DA_FLAG_PACK_INVALID = 0x001, 80 DA_FLAG_NEW_PACK = 0x002, 81 DA_FLAG_PACK_LOCKED = 0x004, 82 DA_FLAG_PACK_REMOVABLE = 0x008, 83 DA_FLAG_TAGGED_QUEUING = 0x010, 84 DA_FLAG_NEED_OTAG = 0x020, 85 DA_FLAG_WENT_IDLE = 0x040, 86 DA_FLAG_RETRY_UA = 0x080, 87 DA_FLAG_OPEN = 0x100 88 } da_flags; 89 90 typedef enum { 91 DA_Q_NONE = 0x00, 92 DA_Q_NO_SYNC_CACHE = 0x01, 93 DA_Q_NO_6_BYTE = 0x02 94 } da_quirks; 95 96 typedef enum { 97 DA_CCB_PROBE = 0x01, 98 DA_CCB_BUFFER_IO = 0x02, 99 DA_CCB_WAITING = 0x03, 100 DA_CCB_DUMP = 0x04, 101 DA_CCB_TYPE_MASK = 0x0F, 102 DA_CCB_RETRY_UA = 0x10 103 } da_ccb_state; 104 105 /* Offsets into our private area for storing information */ 106 #define ccb_state ppriv_field0 107 #define ccb_bp ppriv_ptr1 108 109 struct disk_params { 110 u_int8_t heads; 111 u_int16_t cylinders; 112 u_int8_t secs_per_track; 113 u_int32_t secsize; /* Number of bytes/sector */ 114 u_int32_t sectors; /* total number sectors */ 115 }; 116 117 struct da_softc { 118 struct bio_queue_head bio_queue; 119 struct devstat device_stats; 120 SLIST_ENTRY(da_softc) links; 121 LIST_HEAD(, ccb_hdr) pending_ccbs; 122 da_state state; 123 da_flags flags; 124 da_quirks quirks; 125 int minimum_cmd_size; 126 int ordered_tag_count; 127 struct disk_params params; 128 struct disk disk; 129 union ccb saved_ccb; 130 dev_t dev; 131 }; 132 133 struct da_quirk_entry { 134 struct scsi_inquiry_pattern inq_pat; 135 da_quirks quirks; 136 }; 137 138 static const char quantum[] = "QUANTUM"; 139 static const char microp[] = "MICROP"; 140 141 static struct da_quirk_entry da_quirk_table[] = 142 { 143 /* 144 * Logitec USB/Firewire LHD-P30FU 145 */ 146 { 147 /* USB part */ 148 {T_DIRECT, SIP_MEDIA_FIXED, "HITACHI_", "DK23DA*", "*"}, 149 /*quirks*/ DA_Q_NO_6_BYTE 150 }, 151 { 152 /* Firewire part */ 153 {T_DIRECT, SIP_MEDIA_FIXED, "LSILogic", "SYM13FW*", "*"}, 154 /*quirks*/ DA_Q_NO_6_BYTE 155 }, 156 { 157 /* 158 * Fujitsu M2513A MO drives. 159 * Tested devices: M2513A2 firmware versions 1200 & 1300. 160 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 161 * Reported by: W.Scholten <whs@xs4all.nl> 162 */ 163 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 164 /*quirks*/ DA_Q_NO_SYNC_CACHE 165 }, 166 { 167 /* See above. */ 168 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 169 /*quirks*/ DA_Q_NO_SYNC_CACHE 170 }, 171 { 172 /* 173 * This particular Fujitsu drive doesn't like the 174 * synchronize cache command. 175 * Reported by: Tom Jackson <toj@gorilla.net> 176 */ 177 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 178 /*quirks*/ DA_Q_NO_SYNC_CACHE 179 180 }, 181 { 182 /* 183 * This drive doesn't like the synchronize cache command 184 * either. Reported by: Matthew Jacob <mjacob@feral.com> 185 * in NetBSD PR kern/6027, August 24, 1998. 186 */ 187 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 188 /*quirks*/ DA_Q_NO_SYNC_CACHE 189 }, 190 { 191 /* 192 * This drive doesn't like the synchronize cache command 193 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 194 * (PR 8882). 195 */ 196 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 197 /*quirks*/ DA_Q_NO_SYNC_CACHE 198 }, 199 { 200 /* 201 * Doesn't like the synchronize cache command. 202 * Reported by: Blaz Zupan <blaz@gold.amis.net> 203 */ 204 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 205 /*quirks*/ DA_Q_NO_SYNC_CACHE 206 }, 207 { 208 /* 209 * Doesn't like the synchronize cache command. 210 */ 211 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 212 /*quirks*/ DA_Q_NO_SYNC_CACHE 213 }, 214 { 215 /* 216 * Doesn't like the synchronize cache command. 217 */ 218 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 219 /*quirks*/ DA_Q_NO_SYNC_CACHE 220 }, 221 { 222 /* 223 * Doesn't work correctly with 6 byte reads/writes. 224 * Returns illegal request, and points to byte 9 of the 225 * 6-byte CDB. 226 * Reported by: Adam McDougall <bsdx@spawnet.com> 227 */ 228 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 229 /*quirks*/ DA_Q_NO_6_BYTE 230 }, 231 { 232 /* 233 * See above. 234 */ 235 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 236 /*quirks*/ DA_Q_NO_6_BYTE 237 }, 238 239 /* Below a list of quirks for USB devices supported by umass. */ 240 { 241 /* 242 * This USB floppy drive uses the UFI command set. This 243 * command set is a derivative of the ATAPI command set and 244 * does not support READ_6 commands only READ_10. It also does 245 * not support sync cache (0x35). 246 */ 247 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 248 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 249 }, 250 { 251 /* Another USB floppy */ 252 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 253 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 254 }, 255 { 256 /* 257 * Sony Memory Stick adapter MSAC-US1 and 258 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 259 * Make all sony MS* products use this quirk. 260 */ 261 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 262 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 263 }, 264 { 265 /* 266 * Sony Memory Stick adapter for the CLIE series 267 * of PalmOS PDA's 268 */ 269 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 270 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 271 }, 272 { 273 /* 274 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 275 */ 276 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 277 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 278 }, 279 { 280 /* 281 * Maxtor 3000LE USB Drive 282 */ 283 {T_DIRECT, SIP_MEDIA_FIXED, "MAXTOR*", "K040H2*", "*"}, 284 /*quirks*/ DA_Q_NO_6_BYTE 285 }, 286 { 287 /* 288 * LaCie USB drive, among others 289 */ 290 {T_DIRECT, SIP_MEDIA_FIXED, "Maxtor*", "D080H4*", "*"}, 291 /*quirks*/ DA_Q_NO_6_BYTE 292 }, 293 { 294 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "MCF3064AP", "*"}, 295 /*quirks*/ DA_Q_NO_6_BYTE 296 }, 297 { 298 /* 299 * Microtech USB CameraMate 300 */ 301 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 302 "Compact Flash*", "*"}, 303 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 304 }, 305 { 306 /* 307 * The vendor, product and version strings coming from the 308 * controller are null terminated instead of being padded with 309 * spaces. The trailing wildcard character '*' is required. 310 */ 311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 312 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 313 }, 314 { 315 /* 316 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 317 */ 318 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 319 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 320 }, 321 { 322 /* 323 * Olympus digital cameras (D-370) 324 */ 325 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "D-*", "*"}, 326 /*quirks*/ DA_Q_NO_6_BYTE 327 }, 328 { 329 /* 330 * Olympus digital cameras (E-100RS, E-10). 331 */ 332 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 333 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 334 }, 335 { 336 /* 337 * KingByte Pen Drives 338 */ 339 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 340 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 341 }, 342 { 343 /* 344 * FujiFilm Camera 345 */ 346 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT", 347 "USB-DRIVEUNIT", "*"}, 348 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 349 }, 350 { 351 /* 352 * Nikon Coolpix E775/E995 Cameras 353 */ 354 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NIKON", "NIKON DSC E*", "*"}, 355 /*quirks*/ DA_Q_NO_6_BYTE 356 }, 357 { 358 /* 359 * Nikon Coolpix E885 Camera 360 */ 361 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Nikon", "Digital Camera", "*"}, 362 /*quirks*/ DA_Q_NO_6_BYTE 363 }, 364 { 365 /* 366 * SimpleTech FlashLink UCF-100 367 */ 368 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OEI-USB", "CompactFlash", "*"}, 369 /*quirks*/ DA_Q_NO_6_BYTE 370 }, 371 { 372 /* 373 * Minolta Dimage 2330 374 */ 375 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DIMAGE 2330*", "*"}, 376 /*quirks*/ DA_Q_NO_6_BYTE 377 }, 378 { 379 /* 380 * Minolta Dimage E203 381 */ 382 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 383 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 384 }, 385 { 386 /* 387 * DIVA USB Mp3 Player. 388 * PR: kern/33638 389 */ 390 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DIVA USB", "Media Reader","*"}, 391 /*quirks*/ DA_Q_NO_6_BYTE 392 }, 393 { 394 /* 395 * Daisy Technology PhotoClip USB Camera 396 */ 397 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Digital", "World DMC","*"}, 398 /*quirks*/ DA_Q_NO_6_BYTE 399 }, 400 { 401 /* 402 * Apacer HandyDrive 403 * PR: kern/43627 404 */ 405 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"}, 406 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 407 }, 408 { 409 /* 410 * Daisy Technology PhotoClip on Zoran chip 411 * PR: kern/43580 412 */ 413 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 414 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 415 }, 416 { 417 /* 418 * HP 315 Digital Camera 419 * PR: kern/41010 420 */ 421 {T_DIRECT, SIP_MEDIA_REMOVABLE, "HP", "USB CAMERA", "*"}, 422 /*quirks*/ DA_Q_NO_6_BYTE 423 } 424 }; 425 426 static d_open_t daopen; 427 static d_close_t daclose; 428 static d_strategy_t dastrategy; 429 static d_ioctl_t daioctl; 430 static d_dump_t dadump; 431 static periph_init_t dainit; 432 static void daasync(void *callback_arg, u_int32_t code, 433 struct cam_path *path, void *arg); 434 static periph_ctor_t daregister; 435 static periph_dtor_t dacleanup; 436 static periph_start_t dastart; 437 static periph_oninv_t daoninvalidate; 438 static void dadone(struct cam_periph *periph, 439 union ccb *done_ccb); 440 static int daerror(union ccb *ccb, u_int32_t cam_flags, 441 u_int32_t sense_flags); 442 static void daprevent(struct cam_periph *periph, int action); 443 static void dasetgeom(struct cam_periph *periph, 444 struct scsi_read_capacity_data * rdcap); 445 static timeout_t dasendorderedtag; 446 static void dashutdown(void *arg, int howto); 447 448 #ifndef DA_DEFAULT_TIMEOUT 449 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 450 #endif 451 452 #ifndef DA_DEFAULT_RETRY 453 #define DA_DEFAULT_RETRY 4 454 #endif 455 456 static int da_retry_count = DA_DEFAULT_RETRY; 457 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 458 static int da_no_6_byte = 0; 459 460 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 461 "CAM Direct Access Disk driver"); 462 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 463 &da_retry_count, 0, "Normal I/O retry count"); 464 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 465 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 466 SYSCTL_INT(_kern_cam_da, OID_AUTO, no_6_byte, CTLFLAG_RW, 467 &da_no_6_byte, 0, "No 6 bytes commands"); 468 469 /* 470 * DA_ORDEREDTAG_INTERVAL determines how often, relative 471 * to the default timeout, we check to see whether an ordered 472 * tagged transaction is appropriate to prevent simple tag 473 * starvation. Since we'd like to ensure that there is at least 474 * 1/2 of the timeout length left for a starved transaction to 475 * complete after we've sent an ordered tag, we must poll at least 476 * four times in every timeout period. This takes care of the worst 477 * case where a starved transaction starts during an interval that 478 * meets the requirement "don't send an ordered tag" test so it takes 479 * us two intervals to determine that a tag must be sent. 480 */ 481 #ifndef DA_ORDEREDTAG_INTERVAL 482 #define DA_ORDEREDTAG_INTERVAL 4 483 #endif 484 485 static struct periph_driver dadriver = 486 { 487 dainit, "da", 488 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 489 }; 490 491 PERIPHDRIVER_DECLARE(da, dadriver); 492 493 #define DA_CDEV_MAJOR 13 494 495 /* For 2.2-stable support */ 496 #ifndef D_DISK 497 #define D_DISK 0 498 #endif 499 500 static struct cdevsw da_cdevsw = { 501 /* open */ daopen, 502 /* close */ daclose, 503 /* read */ physread, 504 /* write */ physwrite, 505 /* ioctl */ daioctl, 506 /* poll */ nopoll, 507 /* mmap */ nommap, 508 /* strategy */ dastrategy, 509 /* name */ "da", 510 /* maj */ DA_CDEV_MAJOR, 511 /* dump */ dadump, 512 /* psize */ nopsize, 513 /* flags */ D_DISK, 514 }; 515 516 static struct cdevsw dadisk_cdevsw; 517 518 static SLIST_HEAD(,da_softc) softc_list; 519 520 static int 521 daopen(dev_t dev, int flags __unused, int fmt __unused, struct thread *td __unused) 522 { 523 struct cam_periph *periph; 524 struct da_softc *softc; 525 struct scsi_read_capacity_data *rcap; 526 union ccb *ccb; 527 int unit; 528 int error; 529 int s; 530 531 s = splsoftcam(); 532 periph = (struct cam_periph *)dev->si_drv1; 533 unit = periph->unit_number; 534 if (periph == NULL) { 535 splx(s); 536 return (ENXIO); 537 } 538 539 softc = (struct da_softc *)periph->softc; 540 541 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 542 ("daopen: dev=%s (unit %d)\n", devtoname(dev), 543 unit)); 544 545 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 546 return (error); /* error code from tsleep */ 547 548 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 549 return(ENXIO); 550 softc->flags |= DA_FLAG_OPEN; 551 552 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 553 /* Invalidate our pack information. */ 554 disk_invalidate(&softc->disk); 555 softc->flags &= ~DA_FLAG_PACK_INVALID; 556 } 557 splx(s); 558 559 /* Do a read capacity */ 560 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 561 M_TEMP, 562 M_WAITOK); 563 564 ccb = cam_periph_getccb(periph, /*priority*/1); 565 scsi_read_capacity(&ccb->csio, 566 /*retries*/4, 567 /*cbfncp*/dadone, 568 MSG_SIMPLE_Q_TAG, 569 rcap, 570 SSD_FULL_SIZE, 571 /*timeout*/60000); 572 ccb->ccb_h.ccb_bp = NULL; 573 574 error = cam_periph_runccb(ccb, daerror, 575 /*cam_flags*/CAM_RETRY_SELTO, 576 /*sense_flags*/SF_RETRY_UA, 577 &softc->device_stats); 578 579 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 580 cam_release_devq(ccb->ccb_h.path, 581 /*relsim_flags*/0, 582 /*reduction*/0, 583 /*timeout*/0, 584 /*getcount_only*/0); 585 xpt_release_ccb(ccb); 586 587 if (error == 0) 588 dasetgeom(periph, rcap); 589 590 free(rcap, M_TEMP); 591 592 if (error == 0) { 593 594 softc->disk.d_sectorsize = softc->params.secsize; 595 softc->disk.d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 596 /* XXX: these are not actually "firmware" values, so they may be wrong */ 597 softc->disk.d_fwsectors = softc->params.secs_per_track; 598 softc->disk.d_fwheads = softc->params.heads; 599 600 /* 601 * Check to see whether or not the blocksize is set yet. 602 * If it isn't, set it and then clear the blocksize 603 * unavailable flag for the device statistics. 604 */ 605 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 606 softc->device_stats.block_size = softc->params.secsize; 607 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 608 } 609 } 610 611 if (error == 0) { 612 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) 613 daprevent(periph, PR_PREVENT); 614 } 615 cam_periph_unlock(periph); 616 return (error); 617 } 618 619 static int 620 daclose(dev_t dev, int flag __unused, int fmt __unused, struct thread *td __unused) 621 { 622 struct cam_periph *periph; 623 struct da_softc *softc; 624 int error; 625 626 periph = (struct cam_periph *)dev->si_drv1; 627 if (periph == NULL) 628 return (ENXIO); 629 630 softc = (struct da_softc *)periph->softc; 631 632 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 633 return (error); /* error code from tsleep */ 634 } 635 636 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 637 union ccb *ccb; 638 639 ccb = cam_periph_getccb(periph, /*priority*/1); 640 641 scsi_synchronize_cache(&ccb->csio, 642 /*retries*/1, 643 /*cbfcnp*/dadone, 644 MSG_SIMPLE_Q_TAG, 645 /*begin_lba*/0,/* Cover the whole disk */ 646 /*lb_count*/0, 647 SSD_FULL_SIZE, 648 5 * 60 * 1000); 649 650 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 651 /*sense_flags*/SF_RETRY_UA, 652 &softc->device_stats); 653 654 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 655 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 656 CAM_SCSI_STATUS_ERROR) { 657 int asc, ascq; 658 int sense_key, error_code; 659 660 scsi_extract_sense(&ccb->csio.sense_data, 661 &error_code, 662 &sense_key, 663 &asc, &ascq); 664 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 665 scsi_sense_print(&ccb->csio); 666 } else { 667 xpt_print_path(periph->path); 668 printf("Synchronize cache failed, status " 669 "== 0x%x, scsi status == 0x%x\n", 670 ccb->csio.ccb_h.status, 671 ccb->csio.scsi_status); 672 } 673 } 674 675 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 676 cam_release_devq(ccb->ccb_h.path, 677 /*relsim_flags*/0, 678 /*reduction*/0, 679 /*timeout*/0, 680 /*getcount_only*/0); 681 682 xpt_release_ccb(ccb); 683 684 } 685 686 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 687 daprevent(periph, PR_ALLOW); 688 /* 689 * If we've got removeable media, mark the blocksize as 690 * unavailable, since it could change when new media is 691 * inserted. 692 */ 693 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 694 } 695 696 softc->flags &= ~DA_FLAG_OPEN; 697 cam_periph_unlock(periph); 698 cam_periph_release(periph); 699 return (0); 700 } 701 702 /* 703 * Actually translate the requested transfer into one the physical driver 704 * can understand. The transfer is described by a buf and will include 705 * only one physical transfer. 706 */ 707 static void 708 dastrategy(struct bio *bp) 709 { 710 struct cam_periph *periph; 711 struct da_softc *softc; 712 int s; 713 714 periph = (struct cam_periph *)bp->bio_dev->si_drv1; 715 if (periph == NULL) { 716 biofinish(bp, NULL, ENXIO); 717 return; 718 } 719 softc = (struct da_softc *)periph->softc; 720 #if 0 721 /* 722 * check it's not too big a transfer for our adapter 723 */ 724 scsi_minphys(bp,&sd_switch); 725 #endif 726 727 /* 728 * Mask interrupts so that the pack cannot be invalidated until 729 * after we are in the queue. Otherwise, we might not properly 730 * clean up one of the buffers. 731 */ 732 s = splbio(); 733 734 /* 735 * If the device has been made invalid, error out 736 */ 737 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 738 splx(s); 739 biofinish(bp, NULL, ENXIO); 740 return; 741 } 742 743 /* 744 * Place it in the queue of disk activities for this disk 745 */ 746 bioqdisksort(&softc->bio_queue, bp); 747 748 splx(s); 749 750 /* 751 * Schedule ourselves for performing the work. 752 */ 753 xpt_schedule(periph, /* XXX priority */1); 754 755 return; 756 } 757 758 /* For 2.2-stable support */ 759 #ifndef ENOIOCTL 760 #define ENOIOCTL -1 761 #endif 762 763 static int 764 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 765 { 766 struct cam_periph *periph; 767 struct da_softc *softc; 768 int error; 769 770 periph = (struct cam_periph *)dev->si_drv1; 771 if (periph == NULL) 772 return (ENXIO); 773 774 softc = (struct da_softc *)periph->softc; 775 776 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 777 778 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) { 779 return (error); /* error code from tsleep */ 780 } 781 782 error = cam_periph_ioctl(periph, cmd, addr, daerror); 783 784 cam_periph_unlock(periph); 785 786 return (error); 787 } 788 789 static int 790 dadump(dev_t dev, void *virtual, vm_offset_t physical, off_t offset, size_t length) 791 { 792 struct cam_periph *periph; 793 struct da_softc *softc; 794 u_int secsize; 795 struct ccb_scsiio csio; 796 797 periph = (struct cam_periph *)dev->si_drv1; 798 if (periph == NULL) 799 return (ENXIO); 800 softc = (struct da_softc *)periph->softc; 801 secsize = softc->params.secsize; 802 803 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 804 return (ENXIO); 805 806 if (length > 0) { 807 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 808 csio.ccb_h.ccb_state = DA_CCB_DUMP; 809 scsi_read_write(&csio, 810 /*retries*/1, 811 dadone, 812 MSG_ORDERED_Q_TAG, 813 /*read*/FALSE, 814 /*byte2*/0, 815 /*minimum_cmd_size*/ softc->minimum_cmd_size, 816 offset / secsize, 817 length / secsize, 818 /*data_ptr*/(u_int8_t *) virtual, 819 /*dxfer_len*/length, 820 /*sense_len*/SSD_FULL_SIZE, 821 DA_DEFAULT_TIMEOUT * 1000); 822 xpt_polled_action((union ccb *)&csio); 823 824 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 825 printf("Aborting dump due to I/O error.\n"); 826 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 827 CAM_SCSI_STATUS_ERROR) 828 scsi_sense_print(&csio); 829 else 830 printf("status == 0x%x, scsi status == 0x%x\n", 831 csio.ccb_h.status, csio.scsi_status); 832 return(EIO); 833 } 834 return(0); 835 } 836 837 /* 838 * Sync the disk cache contents to the physical media. 839 */ 840 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 841 842 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 843 csio.ccb_h.ccb_state = DA_CCB_DUMP; 844 scsi_synchronize_cache(&csio, 845 /*retries*/1, 846 /*cbfcnp*/dadone, 847 MSG_SIMPLE_Q_TAG, 848 /*begin_lba*/0,/* Cover the whole disk */ 849 /*lb_count*/0, 850 SSD_FULL_SIZE, 851 5 * 60 * 1000); 852 xpt_polled_action((union ccb *)&csio); 853 854 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 855 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 856 CAM_SCSI_STATUS_ERROR) { 857 int asc, ascq; 858 int sense_key, error_code; 859 860 scsi_extract_sense(&csio.sense_data, 861 &error_code, 862 &sense_key, 863 &asc, &ascq); 864 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 865 scsi_sense_print(&csio); 866 } else { 867 xpt_print_path(periph->path); 868 printf("Synchronize cache failed, status " 869 "== 0x%x, scsi status == 0x%x\n", 870 csio.ccb_h.status, csio.scsi_status); 871 } 872 } 873 } 874 return (0); 875 } 876 877 static void 878 dainit(void) 879 { 880 cam_status status; 881 struct cam_path *path; 882 883 SLIST_INIT(&softc_list); 884 885 /* 886 * Install a global async callback. This callback will 887 * receive async callbacks like "new device found". 888 */ 889 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 890 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 891 892 if (status == CAM_REQ_CMP) { 893 struct ccb_setasync csa; 894 895 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 896 csa.ccb_h.func_code = XPT_SASYNC_CB; 897 csa.event_enable = AC_FOUND_DEVICE; 898 csa.callback = daasync; 899 csa.callback_arg = NULL; 900 xpt_action((union ccb *)&csa); 901 status = csa.ccb_h.status; 902 xpt_free_path(path); 903 } 904 905 if (status != CAM_REQ_CMP) { 906 printf("da: Failed to attach master async callback " 907 "due to status 0x%x!\n", status); 908 } else { 909 910 /* 911 * Schedule a periodic event to occasionally send an 912 * ordered tag to a device. 913 */ 914 timeout(dasendorderedtag, NULL, 915 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 916 917 /* Register our shutdown event handler */ 918 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 919 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 920 printf("dainit: shutdown event registration failed!\n"); 921 } 922 } 923 924 static void 925 daoninvalidate(struct cam_periph *periph) 926 { 927 int s; 928 struct da_softc *softc; 929 struct bio *q_bp; 930 struct ccb_setasync csa; 931 932 softc = (struct da_softc *)periph->softc; 933 934 /* 935 * De-register any async callbacks. 936 */ 937 xpt_setup_ccb(&csa.ccb_h, periph->path, 938 /* priority */ 5); 939 csa.ccb_h.func_code = XPT_SASYNC_CB; 940 csa.event_enable = 0; 941 csa.callback = daasync; 942 csa.callback_arg = periph; 943 xpt_action((union ccb *)&csa); 944 945 softc->flags |= DA_FLAG_PACK_INVALID; 946 947 /* 948 * Although the oninvalidate() routines are always called at 949 * splsoftcam, we need to be at splbio() here to keep the buffer 950 * queue from being modified while we traverse it. 951 */ 952 s = splbio(); 953 954 /* 955 * Return all queued I/O with ENXIO. 956 * XXX Handle any transactions queued to the card 957 * with XPT_ABORT_CCB. 958 */ 959 while ((q_bp = bioq_first(&softc->bio_queue)) != NULL){ 960 bioq_remove(&softc->bio_queue, q_bp); 961 q_bp->bio_resid = q_bp->bio_bcount; 962 biofinish(q_bp, NULL, ENXIO); 963 } 964 splx(s); 965 966 SLIST_REMOVE(&softc_list, softc, da_softc, links); 967 968 xpt_print_path(periph->path); 969 printf("lost device\n"); 970 } 971 972 static void 973 dacleanup(struct cam_periph *periph) 974 { 975 struct da_softc *softc; 976 977 softc = (struct da_softc *)periph->softc; 978 979 devstat_remove_entry(&softc->device_stats); 980 xpt_print_path(periph->path); 981 printf("removing device entry\n"); 982 if (softc->dev) { 983 disk_destroy(softc->dev); 984 } 985 free(softc, M_DEVBUF); 986 } 987 988 static void 989 daasync(void *callback_arg, u_int32_t code, 990 struct cam_path *path, void *arg) 991 { 992 struct cam_periph *periph; 993 994 periph = (struct cam_periph *)callback_arg; 995 switch (code) { 996 case AC_FOUND_DEVICE: 997 { 998 struct ccb_getdev *cgd; 999 cam_status status; 1000 1001 cgd = (struct ccb_getdev *)arg; 1002 if (cgd == NULL) 1003 break; 1004 1005 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1006 && SID_TYPE(&cgd->inq_data) != T_RBC 1007 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1008 break; 1009 1010 /* 1011 * Allocate a peripheral instance for 1012 * this device and start the probe 1013 * process. 1014 */ 1015 status = cam_periph_alloc(daregister, daoninvalidate, 1016 dacleanup, dastart, 1017 "da", CAM_PERIPH_BIO, 1018 cgd->ccb_h.path, daasync, 1019 AC_FOUND_DEVICE, cgd); 1020 1021 if (status != CAM_REQ_CMP 1022 && status != CAM_REQ_INPROG) 1023 printf("daasync: Unable to attach to new device " 1024 "due to status 0x%x\n", status); 1025 break; 1026 } 1027 case AC_SENT_BDR: 1028 case AC_BUS_RESET: 1029 { 1030 struct da_softc *softc; 1031 struct ccb_hdr *ccbh; 1032 int s; 1033 1034 softc = (struct da_softc *)periph->softc; 1035 s = splsoftcam(); 1036 /* 1037 * Don't fail on the expected unit attention 1038 * that will occur. 1039 */ 1040 softc->flags |= DA_FLAG_RETRY_UA; 1041 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1042 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1043 splx(s); 1044 /* FALLTHROUGH*/ 1045 } 1046 default: 1047 cam_periph_async(periph, code, path, arg); 1048 break; 1049 } 1050 } 1051 1052 static cam_status 1053 daregister(struct cam_periph *periph, void *arg) 1054 { 1055 int s; 1056 struct da_softc *softc; 1057 struct ccb_setasync csa; 1058 struct ccb_getdev *cgd; 1059 caddr_t match; 1060 1061 cgd = (struct ccb_getdev *)arg; 1062 if (periph == NULL) { 1063 printf("daregister: periph was NULL!!\n"); 1064 return(CAM_REQ_CMP_ERR); 1065 } 1066 1067 if (cgd == NULL) { 1068 printf("daregister: no getdev CCB, can't register device\n"); 1069 return(CAM_REQ_CMP_ERR); 1070 } 1071 1072 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1073 M_NOWAIT|M_ZERO); 1074 1075 if (softc == NULL) { 1076 printf("daregister: Unable to probe new device. " 1077 "Unable to allocate softc\n"); 1078 return(CAM_REQ_CMP_ERR); 1079 } 1080 1081 LIST_INIT(&softc->pending_ccbs); 1082 softc->state = DA_STATE_PROBE; 1083 bioq_init(&softc->bio_queue); 1084 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1085 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1086 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1087 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1088 1089 periph->softc = softc; 1090 1091 /* 1092 * See if this device has any quirks. 1093 */ 1094 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1095 (caddr_t)da_quirk_table, 1096 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1097 sizeof(*da_quirk_table), scsi_inquiry_match); 1098 1099 if (match != NULL) 1100 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1101 else 1102 softc->quirks = DA_Q_NONE; 1103 1104 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1105 softc->minimum_cmd_size = 10; 1106 else 1107 softc->minimum_cmd_size = 6; 1108 1109 /* 1110 * Block our timeout handler while we 1111 * add this softc to the dev list. 1112 */ 1113 s = splsoftclock(); 1114 SLIST_INSERT_HEAD(&softc_list, softc, links); 1115 splx(s); 1116 1117 /* 1118 * The DA driver supports a blocksize, but 1119 * we don't know the blocksize until we do 1120 * a read capacity. So, set a flag to 1121 * indicate that the blocksize is 1122 * unavailable right now. We'll clear the 1123 * flag as soon as we've done a read capacity. 1124 */ 1125 devstat_add_entry(&softc->device_stats, "da", 1126 periph->unit_number, 0, 1127 DEVSTAT_BS_UNAVAILABLE, 1128 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1129 DEVSTAT_PRIORITY_DISK); 1130 1131 /* 1132 * Register this media as a disk 1133 */ 1134 softc->dev = disk_create(periph->unit_number, &softc->disk, 0, 1135 &da_cdevsw, &dadisk_cdevsw); 1136 softc->dev->si_drv1 = periph; 1137 1138 /* 1139 * Add async callbacks for bus reset and 1140 * bus device reset calls. I don't bother 1141 * checking if this fails as, in most cases, 1142 * the system will function just fine without 1143 * them and the only alternative would be to 1144 * not attach the device on failure. 1145 */ 1146 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1147 csa.ccb_h.func_code = XPT_SASYNC_CB; 1148 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1149 csa.callback = daasync; 1150 csa.callback_arg = periph; 1151 xpt_action((union ccb *)&csa); 1152 /* 1153 * Lock this peripheral until we are setup. 1154 * This first call can't block 1155 */ 1156 (void)cam_periph_lock(periph, PRIBIO); 1157 xpt_schedule(periph, /*priority*/5); 1158 1159 return(CAM_REQ_CMP); 1160 } 1161 1162 static void 1163 dastart(struct cam_periph *periph, union ccb *start_ccb) 1164 { 1165 struct da_softc *softc; 1166 1167 softc = (struct da_softc *)periph->softc; 1168 1169 1170 switch (softc->state) { 1171 case DA_STATE_NORMAL: 1172 { 1173 /* Pull a buffer from the queue and get going on it */ 1174 struct bio *bp; 1175 int s; 1176 1177 /* 1178 * See if there is a buf with work for us to do.. 1179 */ 1180 s = splbio(); 1181 bp = bioq_first(&softc->bio_queue); 1182 if (periph->immediate_priority <= periph->pinfo.priority) { 1183 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1184 ("queuing for immediate ccb\n")); 1185 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1186 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1187 periph_links.sle); 1188 periph->immediate_priority = CAM_PRIORITY_NONE; 1189 splx(s); 1190 wakeup(&periph->ccb_list); 1191 } else if (bp == NULL) { 1192 splx(s); 1193 xpt_release_ccb(start_ccb); 1194 } else { 1195 int oldspl; 1196 u_int8_t tag_code; 1197 1198 bioq_remove(&softc->bio_queue, bp); 1199 1200 devstat_start_transaction(&softc->device_stats); 1201 1202 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1203 softc->flags &= ~DA_FLAG_NEED_OTAG; 1204 softc->ordered_tag_count++; 1205 tag_code = MSG_ORDERED_Q_TAG; 1206 } else { 1207 tag_code = MSG_SIMPLE_Q_TAG; 1208 } 1209 if (da_no_6_byte && softc->minimum_cmd_size == 6) 1210 softc->minimum_cmd_size = 10; 1211 scsi_read_write(&start_ccb->csio, 1212 /*retries*/da_retry_count, 1213 dadone, 1214 tag_code, 1215 bp->bio_cmd == BIO_READ, 1216 /*byte2*/0, 1217 softc->minimum_cmd_size, 1218 bp->bio_pblkno, 1219 bp->bio_bcount / softc->params.secsize, 1220 bp->bio_data, 1221 bp->bio_bcount, 1222 /*sense_len*/SSD_FULL_SIZE, 1223 da_default_timeout * 1000); 1224 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1225 1226 /* 1227 * Block out any asyncronous callbacks 1228 * while we touch the pending ccb list. 1229 */ 1230 oldspl = splcam(); 1231 LIST_INSERT_HEAD(&softc->pending_ccbs, 1232 &start_ccb->ccb_h, periph_links.le); 1233 splx(oldspl); 1234 1235 /* We expect a unit attention from this device */ 1236 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1237 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1238 softc->flags &= ~DA_FLAG_RETRY_UA; 1239 } 1240 1241 start_ccb->ccb_h.ccb_bp = bp; 1242 bp = bioq_first(&softc->bio_queue); 1243 splx(s); 1244 1245 xpt_action(start_ccb); 1246 } 1247 1248 if (bp != NULL) { 1249 /* Have more work to do, so ensure we stay scheduled */ 1250 xpt_schedule(periph, /* XXX priority */1); 1251 } 1252 break; 1253 } 1254 case DA_STATE_PROBE: 1255 { 1256 struct ccb_scsiio *csio; 1257 struct scsi_read_capacity_data *rcap; 1258 1259 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1260 M_TEMP, 1261 M_NOWAIT); 1262 if (rcap == NULL) { 1263 printf("dastart: Couldn't malloc read_capacity data\n"); 1264 /* da_free_periph??? */ 1265 break; 1266 } 1267 csio = &start_ccb->csio; 1268 scsi_read_capacity(csio, 1269 /*retries*/4, 1270 dadone, 1271 MSG_SIMPLE_Q_TAG, 1272 rcap, 1273 SSD_FULL_SIZE, 1274 /*timeout*/5000); 1275 start_ccb->ccb_h.ccb_bp = NULL; 1276 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1277 xpt_action(start_ccb); 1278 break; 1279 } 1280 } 1281 } 1282 1283 static int 1284 cmd6workaround(union ccb *ccb) 1285 { 1286 struct scsi_rw_6 cmd6; 1287 struct scsi_rw_10 *cmd10; 1288 struct da_softc *softc; 1289 u_int8_t *cdb; 1290 int frozen; 1291 1292 cdb = ccb->csio.cdb_io.cdb_bytes; 1293 1294 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1295 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1296 (*cdb != READ_6 && *cdb != WRITE_6)) 1297 return 0; 1298 1299 xpt_print_path(ccb->ccb_h.path); 1300 printf("READ(6)/WRITE(6) not supported, " 1301 "increasing minimum_cmd_size to 10.\n"); 1302 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1303 softc->minimum_cmd_size = 10; 1304 1305 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1306 cmd10 = (struct scsi_rw_10 *)cdb; 1307 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1308 cmd10->byte2 = 0; 1309 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1310 cmd10->reserved = 0; 1311 scsi_ulto2b(cmd6.length, cmd10->length); 1312 cmd10->control = cmd6.control; 1313 ccb->csio.cdb_len = sizeof(*cmd10); 1314 1315 /* Requeue request, unfreezing queue if necessary */ 1316 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1317 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1318 xpt_action(ccb); 1319 if (frozen) { 1320 cam_release_devq(ccb->ccb_h.path, 1321 /*relsim_flags*/0, 1322 /*reduction*/0, 1323 /*timeout*/0, 1324 /*getcount_only*/0); 1325 } 1326 return (ERESTART); 1327 } 1328 1329 static void 1330 dadone(struct cam_periph *periph, union ccb *done_ccb) 1331 { 1332 struct da_softc *softc; 1333 struct ccb_scsiio *csio; 1334 1335 softc = (struct da_softc *)periph->softc; 1336 csio = &done_ccb->csio; 1337 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1338 case DA_CCB_BUFFER_IO: 1339 { 1340 struct bio *bp; 1341 int oldspl; 1342 1343 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1344 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1345 int error; 1346 int s; 1347 int sf; 1348 1349 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1350 sf = SF_RETRY_UA; 1351 else 1352 sf = 0; 1353 1354 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1355 if (error == ERESTART) { 1356 /* 1357 * A retry was scheuled, so 1358 * just return. 1359 */ 1360 return; 1361 } 1362 if (error != 0) { 1363 struct bio *q_bp; 1364 1365 s = splbio(); 1366 1367 if (error == ENXIO) { 1368 /* 1369 * Catastrophic error. Mark our pack as 1370 * invalid. 1371 */ 1372 /* XXX See if this is really a media 1373 * change first. 1374 */ 1375 xpt_print_path(periph->path); 1376 printf("Invalidating pack\n"); 1377 softc->flags |= DA_FLAG_PACK_INVALID; 1378 } 1379 1380 /* 1381 * return all queued I/O with EIO, so that 1382 * the client can retry these I/Os in the 1383 * proper order should it attempt to recover. 1384 */ 1385 while ((q_bp = bioq_first(&softc->bio_queue)) 1386 != NULL) { 1387 bioq_remove(&softc->bio_queue, q_bp); 1388 q_bp->bio_resid = q_bp->bio_bcount; 1389 biofinish(q_bp, NULL, EIO); 1390 } 1391 splx(s); 1392 bp->bio_error = error; 1393 bp->bio_resid = bp->bio_bcount; 1394 bp->bio_flags |= BIO_ERROR; 1395 } else { 1396 bp->bio_resid = csio->resid; 1397 bp->bio_error = 0; 1398 if (bp->bio_resid != 0) { 1399 /* Short transfer ??? */ 1400 #if 0 1401 if (cmd6workaround(done_ccb) 1402 == ERESTART) 1403 return; 1404 #endif 1405 bp->bio_flags |= BIO_ERROR; 1406 } 1407 } 1408 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1409 cam_release_devq(done_ccb->ccb_h.path, 1410 /*relsim_flags*/0, 1411 /*reduction*/0, 1412 /*timeout*/0, 1413 /*getcount_only*/0); 1414 } else { 1415 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1416 panic("REQ_CMP with QFRZN"); 1417 bp->bio_resid = csio->resid; 1418 if (csio->resid > 0) { 1419 /* Short transfer ??? */ 1420 #if 0 /* XXX most of the broken umass devices need this ad-hoc work around */ 1421 if (cmd6workaround(done_ccb) == ERESTART) 1422 return; 1423 #endif 1424 bp->bio_flags |= BIO_ERROR; 1425 } 1426 } 1427 1428 /* 1429 * Block out any asyncronous callbacks 1430 * while we touch the pending ccb list. 1431 */ 1432 oldspl = splcam(); 1433 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1434 splx(oldspl); 1435 1436 if (softc->device_stats.busy_count == 0) 1437 softc->flags |= DA_FLAG_WENT_IDLE; 1438 1439 biofinish(bp, &softc->device_stats, 0); 1440 break; 1441 } 1442 case DA_CCB_PROBE: 1443 { 1444 struct scsi_read_capacity_data *rdcap; 1445 char announce_buf[80]; 1446 1447 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1448 1449 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1450 struct disk_params *dp; 1451 1452 dasetgeom(periph, rdcap); 1453 dp = &softc->params; 1454 snprintf(announce_buf, sizeof(announce_buf), 1455 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1456 (unsigned long) (((u_int64_t)dp->secsize * 1457 dp->sectors) / (1024*1024)), dp->sectors, 1458 dp->secsize, dp->heads, dp->secs_per_track, 1459 dp->cylinders); 1460 } else { 1461 int error; 1462 1463 announce_buf[0] = '\0'; 1464 1465 /* 1466 * Retry any UNIT ATTENTION type errors. They 1467 * are expected at boot. 1468 */ 1469 error = daerror(done_ccb, CAM_RETRY_SELTO, 1470 SF_RETRY_UA|SF_NO_PRINT); 1471 if (error == ERESTART) { 1472 /* 1473 * A retry was scheuled, so 1474 * just return. 1475 */ 1476 return; 1477 } else if (error != 0) { 1478 struct scsi_sense_data *sense; 1479 int asc, ascq; 1480 int sense_key, error_code; 1481 int have_sense; 1482 cam_status status; 1483 struct ccb_getdev cgd; 1484 1485 /* Don't wedge this device's queue */ 1486 status = done_ccb->ccb_h.status; 1487 if ((status & CAM_DEV_QFRZN) != 0) 1488 cam_release_devq(done_ccb->ccb_h.path, 1489 /*relsim_flags*/0, 1490 /*reduction*/0, 1491 /*timeout*/0, 1492 /*getcount_only*/0); 1493 1494 1495 xpt_setup_ccb(&cgd.ccb_h, 1496 done_ccb->ccb_h.path, 1497 /* priority */ 1); 1498 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1499 xpt_action((union ccb *)&cgd); 1500 1501 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1502 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1503 || ((status & CAM_AUTOSNS_VALID) == 0)) 1504 have_sense = FALSE; 1505 else 1506 have_sense = TRUE; 1507 1508 if (have_sense) { 1509 sense = &csio->sense_data; 1510 scsi_extract_sense(sense, &error_code, 1511 &sense_key, 1512 &asc, &ascq); 1513 } 1514 /* 1515 * Attach to anything that claims to be a 1516 * direct access or optical disk device, 1517 * as long as it doesn't return a "Logical 1518 * unit not supported" (0x25) error. 1519 */ 1520 if ((have_sense) && (asc != 0x25) 1521 && (error_code == SSD_CURRENT_ERROR)) { 1522 const char *sense_key_desc; 1523 const char *asc_desc; 1524 1525 scsi_sense_desc(sense_key, asc, ascq, 1526 &cgd.inq_data, 1527 &sense_key_desc, 1528 &asc_desc); 1529 snprintf(announce_buf, 1530 sizeof(announce_buf), 1531 "Attempt to query device " 1532 "size failed: %s, %s", 1533 sense_key_desc, 1534 asc_desc); 1535 } else { 1536 if (have_sense) 1537 scsi_sense_print( 1538 &done_ccb->csio); 1539 else { 1540 xpt_print_path(periph->path); 1541 printf("got CAM status %#x\n", 1542 done_ccb->ccb_h.status); 1543 } 1544 1545 xpt_print_path(periph->path); 1546 printf("fatal error, failed" 1547 " to attach to device\n"); 1548 1549 /* 1550 * Free up resources. 1551 */ 1552 cam_periph_invalidate(periph); 1553 } 1554 } 1555 } 1556 free(rdcap, M_TEMP); 1557 if (announce_buf[0] != '\0') 1558 xpt_announce_periph(periph, announce_buf); 1559 softc->state = DA_STATE_NORMAL; 1560 /* 1561 * Since our peripheral may be invalidated by an error 1562 * above or an external event, we must release our CCB 1563 * before releasing the probe lock on the peripheral. 1564 * The peripheral will only go away once the last lock 1565 * is removed, and we need it around for the CCB release 1566 * operation. 1567 */ 1568 xpt_release_ccb(done_ccb); 1569 cam_periph_unlock(periph); 1570 return; 1571 } 1572 case DA_CCB_WAITING: 1573 { 1574 /* Caller will release the CCB */ 1575 wakeup(&done_ccb->ccb_h.cbfcnp); 1576 return; 1577 } 1578 case DA_CCB_DUMP: 1579 /* No-op. We're polling */ 1580 return; 1581 default: 1582 break; 1583 } 1584 xpt_release_ccb(done_ccb); 1585 } 1586 1587 static int 1588 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1589 { 1590 struct da_softc *softc; 1591 struct cam_periph *periph; 1592 int error, sense_key, error_code, asc, ascq; 1593 1594 periph = xpt_path_periph(ccb->ccb_h.path); 1595 softc = (struct da_softc *)periph->softc; 1596 1597 /* 1598 * Automatically detect devices that do not support 1599 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1600 */ 1601 error = 0; 1602 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR 1603 && ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) { 1604 scsi_extract_sense(&ccb->csio.sense_data, 1605 &error_code, &sense_key, &asc, &ascq); 1606 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1607 error = cmd6workaround(ccb); 1608 } 1609 if (error == ERESTART) 1610 return (ERESTART); 1611 1612 /* 1613 * XXX 1614 * Until we have a better way of doing pack validation, 1615 * don't treat UAs as errors. 1616 */ 1617 sense_flags |= SF_RETRY_UA; 1618 return(cam_periph_error(ccb, cam_flags, sense_flags, 1619 &softc->saved_ccb)); 1620 } 1621 1622 static void 1623 daprevent(struct cam_periph *periph, int action) 1624 { 1625 struct da_softc *softc; 1626 union ccb *ccb; 1627 int error; 1628 1629 softc = (struct da_softc *)periph->softc; 1630 1631 if (((action == PR_ALLOW) 1632 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1633 || ((action == PR_PREVENT) 1634 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1635 return; 1636 } 1637 1638 ccb = cam_periph_getccb(periph, /*priority*/1); 1639 1640 scsi_prevent(&ccb->csio, 1641 /*retries*/1, 1642 /*cbcfp*/dadone, 1643 MSG_SIMPLE_Q_TAG, 1644 action, 1645 SSD_FULL_SIZE, 1646 5000); 1647 1648 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1649 SF_RETRY_UA, &softc->device_stats); 1650 1651 if (error == 0) { 1652 if (action == PR_ALLOW) 1653 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1654 else 1655 softc->flags |= DA_FLAG_PACK_LOCKED; 1656 } 1657 1658 xpt_release_ccb(ccb); 1659 } 1660 1661 static void 1662 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap) 1663 { 1664 struct ccb_calc_geometry ccg; 1665 struct da_softc *softc; 1666 struct disk_params *dp; 1667 1668 softc = (struct da_softc *)periph->softc; 1669 1670 dp = &softc->params; 1671 dp->secsize = scsi_4btoul(rdcap->length); 1672 dp->sectors = scsi_4btoul(rdcap->addr) + 1; 1673 /* 1674 * Have the controller provide us with a geometry 1675 * for this disk. The only time the geometry 1676 * matters is when we boot and the controller 1677 * is the only one knowledgeable enough to come 1678 * up with something that will make this a bootable 1679 * device. 1680 */ 1681 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1682 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1683 ccg.block_size = dp->secsize; 1684 ccg.volume_size = dp->sectors; 1685 ccg.heads = 0; 1686 ccg.secs_per_track = 0; 1687 ccg.cylinders = 0; 1688 xpt_action((union ccb*)&ccg); 1689 dp->heads = ccg.heads; 1690 dp->secs_per_track = ccg.secs_per_track; 1691 dp->cylinders = ccg.cylinders; 1692 } 1693 1694 static void 1695 dasendorderedtag(void *arg) 1696 { 1697 struct da_softc *softc; 1698 int s; 1699 1700 for (softc = SLIST_FIRST(&softc_list); 1701 softc != NULL; 1702 softc = SLIST_NEXT(softc, links)) { 1703 s = splsoftcam(); 1704 if ((softc->ordered_tag_count == 0) 1705 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1706 softc->flags |= DA_FLAG_NEED_OTAG; 1707 } 1708 if (softc->device_stats.busy_count > 0) 1709 softc->flags &= ~DA_FLAG_WENT_IDLE; 1710 1711 softc->ordered_tag_count = 0; 1712 splx(s); 1713 } 1714 /* Queue us up again */ 1715 timeout(dasendorderedtag, NULL, 1716 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1717 } 1718 1719 /* 1720 * Step through all DA peripheral drivers, and if the device is still open, 1721 * sync the disk cache to physical media. 1722 */ 1723 static void 1724 dashutdown(void * arg, int howto) 1725 { 1726 struct cam_periph *periph; 1727 struct da_softc *softc; 1728 1729 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1730 union ccb ccb; 1731 softc = (struct da_softc *)periph->softc; 1732 1733 /* 1734 * We only sync the cache if the drive is still open, and 1735 * if the drive is capable of it.. 1736 */ 1737 if (((softc->flags & DA_FLAG_OPEN) == 0) 1738 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1739 continue; 1740 1741 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1742 1743 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1744 scsi_synchronize_cache(&ccb.csio, 1745 /*retries*/1, 1746 /*cbfcnp*/dadone, 1747 MSG_SIMPLE_Q_TAG, 1748 /*begin_lba*/0, /* whole disk */ 1749 /*lb_count*/0, 1750 SSD_FULL_SIZE, 1751 60 * 60 * 1000); 1752 1753 xpt_polled_action(&ccb); 1754 1755 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1756 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1757 CAM_SCSI_STATUS_ERROR) 1758 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1759 int error_code, sense_key, asc, ascq; 1760 1761 scsi_extract_sense(&ccb.csio.sense_data, 1762 &error_code, &sense_key, 1763 &asc, &ascq); 1764 1765 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1766 scsi_sense_print(&ccb.csio); 1767 } else { 1768 xpt_print_path(periph->path); 1769 printf("Synchronize cache failed, status " 1770 "== 0x%x, scsi status == 0x%x\n", 1771 ccb.ccb_h.status, ccb.csio.scsi_status); 1772 } 1773 } 1774 1775 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1776 cam_release_devq(ccb.ccb_h.path, 1777 /*relsim_flags*/0, 1778 /*reduction*/0, 1779 /*timeout*/0, 1780 /*getcount_only*/0); 1781 1782 } 1783 } 1784 1785 #else /* !_KERNEL */ 1786 1787 /* 1788 * XXX This is only left out of the kernel build to silence warnings. If, 1789 * for some reason this function is used in the kernel, the ifdefs should 1790 * be moved so it is included both in the kernel and userland. 1791 */ 1792 void 1793 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1794 void (*cbfcnp)(struct cam_periph *, union ccb *), 1795 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1796 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1797 u_int32_t timeout) 1798 { 1799 struct scsi_format_unit *scsi_cmd; 1800 1801 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1802 scsi_cmd->opcode = FORMAT_UNIT; 1803 scsi_cmd->byte2 = byte2; 1804 scsi_ulto2b(ileave, scsi_cmd->interleave); 1805 1806 cam_fill_csio(csio, 1807 retries, 1808 cbfcnp, 1809 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1810 tag_action, 1811 data_ptr, 1812 dxfer_len, 1813 sense_len, 1814 sizeof(*scsi_cmd), 1815 timeout); 1816 } 1817 1818 #endif /* _KERNEL */ 1819