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_extend.h> 64 #include <cam/cam_periph.h> 65 #include <cam/cam_xpt_periph.h> 66 67 #include <cam/scsi/scsi_message.h> 68 69 #ifndef _KERNEL 70 #include <cam/scsi/scsi_da.h> 71 #endif /* !_KERNEL */ 72 73 #ifdef _KERNEL 74 typedef enum { 75 DA_STATE_PROBE, 76 DA_STATE_NORMAL 77 } da_state; 78 79 typedef enum { 80 DA_FLAG_PACK_INVALID = 0x001, 81 DA_FLAG_NEW_PACK = 0x002, 82 DA_FLAG_PACK_LOCKED = 0x004, 83 DA_FLAG_PACK_REMOVABLE = 0x008, 84 DA_FLAG_TAGGED_QUEUING = 0x010, 85 DA_FLAG_NEED_OTAG = 0x020, 86 DA_FLAG_WENT_IDLE = 0x040, 87 DA_FLAG_RETRY_UA = 0x080, 88 DA_FLAG_OPEN = 0x100 89 } da_flags; 90 91 typedef enum { 92 DA_Q_NONE = 0x00, 93 DA_Q_NO_SYNC_CACHE = 0x01, 94 DA_Q_NO_6_BYTE = 0x02 95 } da_quirks; 96 97 typedef enum { 98 DA_CCB_PROBE = 0x01, 99 DA_CCB_BUFFER_IO = 0x02, 100 DA_CCB_WAITING = 0x03, 101 DA_CCB_DUMP = 0x04, 102 DA_CCB_TYPE_MASK = 0x0F, 103 DA_CCB_RETRY_UA = 0x10 104 } da_ccb_state; 105 106 /* Offsets into our private area for storing information */ 107 #define ccb_state ppriv_field0 108 #define ccb_bp ppriv_ptr1 109 110 struct disk_params { 111 u_int8_t heads; 112 u_int16_t cylinders; 113 u_int8_t secs_per_track; 114 u_int32_t secsize; /* Number of bytes/sector */ 115 u_int32_t sectors; /* total number sectors */ 116 }; 117 118 struct da_softc { 119 struct bio_queue_head bio_queue; 120 struct devstat device_stats; 121 SLIST_ENTRY(da_softc) links; 122 LIST_HEAD(, ccb_hdr) pending_ccbs; 123 da_state state; 124 da_flags flags; 125 da_quirks quirks; 126 int minimum_cmd_size; 127 int ordered_tag_count; 128 struct disk_params params; 129 struct disk disk; 130 union ccb saved_ccb; 131 dev_t dev; 132 }; 133 134 struct da_quirk_entry { 135 struct scsi_inquiry_pattern inq_pat; 136 da_quirks quirks; 137 }; 138 139 static const char quantum[] = "QUANTUM"; 140 static const char microp[] = "MICROP"; 141 142 static struct da_quirk_entry da_quirk_table[] = 143 { 144 /* 145 * Logitec USB/Firewire LHD-P30FU 146 */ 147 { 148 /* USB part */ 149 {T_DIRECT, SIP_MEDIA_FIXED, "HITACHI_", "DK23DA*", "*"}, 150 /*quirks*/ DA_Q_NO_6_BYTE 151 }, 152 { 153 /* Firewire part */ 154 {T_DIRECT, SIP_MEDIA_FIXED, "LSILogic", "SYM13FW*", "*"}, 155 /*quirks*/ DA_Q_NO_6_BYTE 156 }, 157 { 158 /* 159 * Fujitsu M2513A MO drives. 160 * Tested devices: M2513A2 firmware versions 1200 & 1300. 161 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 162 * Reported by: W.Scholten <whs@xs4all.nl> 163 */ 164 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 165 /*quirks*/ DA_Q_NO_SYNC_CACHE 166 }, 167 { 168 /* See above. */ 169 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 170 /*quirks*/ DA_Q_NO_SYNC_CACHE 171 }, 172 { 173 /* 174 * This particular Fujitsu drive doesn't like the 175 * synchronize cache command. 176 * Reported by: Tom Jackson <toj@gorilla.net> 177 */ 178 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 179 /*quirks*/ DA_Q_NO_SYNC_CACHE 180 181 }, 182 { 183 /* 184 * This drive doesn't like the synchronize cache command 185 * either. Reported by: Matthew Jacob <mjacob@feral.com> 186 * in NetBSD PR kern/6027, August 24, 1998. 187 */ 188 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 189 /*quirks*/ DA_Q_NO_SYNC_CACHE 190 }, 191 { 192 /* 193 * This drive doesn't like the synchronize cache command 194 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 195 * (PR 8882). 196 */ 197 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 198 /*quirks*/ DA_Q_NO_SYNC_CACHE 199 }, 200 { 201 /* 202 * Doesn't like the synchronize cache command. 203 * Reported by: Blaz Zupan <blaz@gold.amis.net> 204 */ 205 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 206 /*quirks*/ DA_Q_NO_SYNC_CACHE 207 }, 208 { 209 /* 210 * Doesn't like the synchronize cache command. 211 */ 212 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 213 /*quirks*/ DA_Q_NO_SYNC_CACHE 214 }, 215 { 216 /* 217 * Doesn't like the synchronize cache command. 218 */ 219 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 220 /*quirks*/ DA_Q_NO_SYNC_CACHE 221 }, 222 { 223 /* 224 * Doesn't work correctly with 6 byte reads/writes. 225 * Returns illegal request, and points to byte 9 of the 226 * 6-byte CDB. 227 * Reported by: Adam McDougall <bsdx@spawnet.com> 228 */ 229 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 230 /*quirks*/ DA_Q_NO_6_BYTE 231 }, 232 { 233 /* 234 * See above. 235 */ 236 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 237 /*quirks*/ DA_Q_NO_6_BYTE 238 }, 239 240 /* Below a list of quirks for USB devices supported by umass. */ 241 { 242 /* 243 * This USB floppy drive uses the UFI command set. This 244 * command set is a derivative of the ATAPI command set and 245 * does not support READ_6 commands only READ_10. It also does 246 * not support sync cache (0x35). 247 */ 248 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 249 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 250 }, 251 { 252 /* Another USB floppy */ 253 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 254 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 255 }, 256 { 257 /* 258 * Sony Memory Stick adapter MSAC-US1 and 259 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 260 * Make all sony MS* products use this quirk. 261 */ 262 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 263 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 264 }, 265 { 266 /* 267 * Sony Memory Stick adapter for the CLIE series 268 * of PalmOS PDA's 269 */ 270 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 271 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 272 }, 273 { 274 /* 275 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 276 */ 277 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 278 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 279 }, 280 { 281 /* 282 * Maxtor 3000LE USB Drive 283 */ 284 {T_DIRECT, SIP_MEDIA_FIXED, "MAXTOR*", "K040H2*", "*"}, 285 /*quirks*/ DA_Q_NO_6_BYTE 286 }, 287 { 288 /* 289 * LaCie USB drive, among others 290 */ 291 {T_DIRECT, SIP_MEDIA_FIXED, "Maxtor*", "D080H4*", "*"}, 292 /*quirks*/ DA_Q_NO_6_BYTE 293 }, 294 { 295 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "MCF3064AP", "*"}, 296 /*quirks*/ DA_Q_NO_6_BYTE 297 }, 298 { 299 /* 300 * Microtech USB CameraMate 301 */ 302 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", "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", "USB-DRIVEUNIT", "*"}, 347 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 348 }, 349 { 350 /* 351 * Nikon Coolpix E775/E995 Cameras 352 */ 353 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NIKON", "NIKON DSC E*", "*"}, 354 /*quirks*/ DA_Q_NO_6_BYTE 355 }, 356 { 357 /* 358 * Nikon Coolpix E885 Camera 359 */ 360 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Nikon", "Digital Camera", "*"}, 361 /*quirks*/ DA_Q_NO_6_BYTE 362 }, 363 { 364 /* 365 * SimpleTech FlashLink UCF-100 366 */ 367 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OEI-USB", "CompactFlash", "*"}, 368 /*quirks*/ DA_Q_NO_6_BYTE 369 }, 370 { 371 /* 372 * Minolta Dimage 2330 373 */ 374 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DIMAGE 2330*", "*"}, 375 /*quirks*/ DA_Q_NO_6_BYTE 376 }, 377 { 378 /* 379 * Minolta Dimage E203 380 */ 381 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 382 /*quirks*/ DA_Q_NO_6_BYTE|DA_Q_NO_SYNC_CACHE 383 }, 384 { 385 /* 386 * DIVA USB Mp3 Player. 387 * Doesn't work correctly with 6 byte reads/writes. 388 */ 389 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DIVA USB", "Media Reader","*"}, 390 /*quirks*/ DA_Q_NO_6_BYTE 391 }, 392 { 393 /* 394 * Daisy Technology PhotoClip USB Camera 395 */ 396 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Digital", "World DMC","*"}, 397 /*quirks*/ DA_Q_NO_6_BYTE 398 } 399 }; 400 401 static d_open_t daopen; 402 static d_close_t daclose; 403 static d_strategy_t dastrategy; 404 static d_ioctl_t daioctl; 405 static d_dump_t dadump; 406 static periph_init_t dainit; 407 static void daasync(void *callback_arg, u_int32_t code, 408 struct cam_path *path, void *arg); 409 static periph_ctor_t daregister; 410 static periph_dtor_t dacleanup; 411 static periph_start_t dastart; 412 static periph_oninv_t daoninvalidate; 413 static void dadone(struct cam_periph *periph, 414 union ccb *done_ccb); 415 static int daerror(union ccb *ccb, u_int32_t cam_flags, 416 u_int32_t sense_flags); 417 static void daprevent(struct cam_periph *periph, int action); 418 static void dasetgeom(struct cam_periph *periph, 419 struct scsi_read_capacity_data * rdcap); 420 static timeout_t dasendorderedtag; 421 static void dashutdown(void *arg, int howto); 422 423 #ifndef DA_DEFAULT_TIMEOUT 424 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 425 #endif 426 427 #ifndef DA_DEFAULT_RETRY 428 #define DA_DEFAULT_RETRY 4 429 #endif 430 431 static int da_retry_count = DA_DEFAULT_RETRY; 432 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 433 static int da_no_6_byte = 0; 434 435 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 436 "CAM Direct Access Disk driver"); 437 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 438 &da_retry_count, 0, "Normal I/O retry count"); 439 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 440 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 441 SYSCTL_INT(_kern_cam_da, OID_AUTO, no_6_byte, CTLFLAG_RW, 442 &da_no_6_byte, 0, "No 6 bytes commands"); 443 444 /* 445 * DA_ORDEREDTAG_INTERVAL determines how often, relative 446 * to the default timeout, we check to see whether an ordered 447 * tagged transaction is appropriate to prevent simple tag 448 * starvation. Since we'd like to ensure that there is at least 449 * 1/2 of the timeout length left for a starved transaction to 450 * complete after we've sent an ordered tag, we must poll at least 451 * four times in every timeout period. This takes care of the worst 452 * case where a starved transaction starts during an interval that 453 * meets the requirement "don't send an ordered tag" test so it takes 454 * us two intervals to determine that a tag must be sent. 455 */ 456 #ifndef DA_ORDEREDTAG_INTERVAL 457 #define DA_ORDEREDTAG_INTERVAL 4 458 #endif 459 460 static struct periph_driver dadriver = 461 { 462 dainit, "da", 463 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 464 }; 465 466 PERIPHDRIVER_DECLARE(da, dadriver); 467 468 #define DA_CDEV_MAJOR 13 469 470 /* For 2.2-stable support */ 471 #ifndef D_DISK 472 #define D_DISK 0 473 #endif 474 475 static struct cdevsw da_cdevsw = { 476 /* open */ daopen, 477 /* close */ daclose, 478 /* read */ physread, 479 /* write */ physwrite, 480 /* ioctl */ daioctl, 481 /* poll */ nopoll, 482 /* mmap */ nommap, 483 /* strategy */ dastrategy, 484 /* name */ "da", 485 /* maj */ DA_CDEV_MAJOR, 486 /* dump */ dadump, 487 /* psize */ nopsize, 488 /* flags */ D_DISK, 489 }; 490 491 static struct cdevsw dadisk_cdevsw; 492 493 static SLIST_HEAD(,da_softc) softc_list; 494 static struct extend_array *daperiphs; 495 496 static int 497 daopen(dev_t dev, int flags __unused, int fmt __unused, struct thread *td __unused) 498 { 499 struct cam_periph *periph; 500 struct da_softc *softc; 501 struct disklabel *label; 502 struct scsi_read_capacity_data *rcap; 503 union ccb *ccb; 504 int unit; 505 int part; 506 int error; 507 int s; 508 509 unit = dkunit(dev); 510 part = dkpart(dev); 511 s = splsoftcam(); 512 periph = cam_extend_get(daperiphs, unit); 513 if (periph == NULL) { 514 splx(s); 515 return (ENXIO); 516 } 517 518 softc = (struct da_softc *)periph->softc; 519 520 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 521 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 522 unit, part)); 523 524 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 525 return (error); /* error code from tsleep */ 526 527 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 528 return(ENXIO); 529 softc->flags |= DA_FLAG_OPEN; 530 531 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 532 /* Invalidate our pack information. */ 533 disk_invalidate(&softc->disk); 534 softc->flags &= ~DA_FLAG_PACK_INVALID; 535 } 536 splx(s); 537 538 /* Do a read capacity */ 539 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 540 M_TEMP, 541 M_WAITOK); 542 543 ccb = cam_periph_getccb(periph, /*priority*/1); 544 scsi_read_capacity(&ccb->csio, 545 /*retries*/4, 546 /*cbfncp*/dadone, 547 MSG_SIMPLE_Q_TAG, 548 rcap, 549 SSD_FULL_SIZE, 550 /*timeout*/60000); 551 ccb->ccb_h.ccb_bp = NULL; 552 553 error = cam_periph_runccb(ccb, daerror, 554 /*cam_flags*/CAM_RETRY_SELTO, 555 /*sense_flags*/SF_RETRY_UA, 556 &softc->device_stats); 557 558 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 559 cam_release_devq(ccb->ccb_h.path, 560 /*relsim_flags*/0, 561 /*reduction*/0, 562 /*timeout*/0, 563 /*getcount_only*/0); 564 xpt_release_ccb(ccb); 565 566 if (error == 0) 567 dasetgeom(periph, rcap); 568 569 free(rcap, M_TEMP); 570 571 if (error == 0) { 572 struct ccb_getdev cgd; 573 574 /* Build label for whole disk. */ 575 label = &softc->disk.d_label; 576 bzero(label, sizeof(*label)); 577 label->d_type = DTYPE_SCSI; 578 579 /* 580 * Grab the inquiry data to get the vendor and product names. 581 * Put them in the typename and packname for the label. 582 */ 583 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 584 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 585 xpt_action((union ccb *)&cgd); 586 587 strncpy(label->d_typename, cgd.inq_data.vendor, 588 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 589 strncpy(label->d_packname, cgd.inq_data.product, 590 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 591 592 label->d_secsize = softc->params.secsize; 593 label->d_nsectors = softc->params.secs_per_track; 594 label->d_ntracks = softc->params.heads; 595 label->d_ncylinders = softc->params.cylinders; 596 label->d_secpercyl = softc->params.heads 597 * softc->params.secs_per_track; 598 label->d_secperunit = softc->params.sectors; 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 unit; 625 int error; 626 627 unit = dkunit(dev); 628 periph = cam_extend_get(daperiphs, unit); 629 if (periph == NULL) 630 return (ENXIO); 631 632 softc = (struct da_softc *)periph->softc; 633 634 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 635 return (error); /* error code from tsleep */ 636 } 637 638 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 639 union ccb *ccb; 640 641 ccb = cam_periph_getccb(periph, /*priority*/1); 642 643 scsi_synchronize_cache(&ccb->csio, 644 /*retries*/1, 645 /*cbfcnp*/dadone, 646 MSG_SIMPLE_Q_TAG, 647 /*begin_lba*/0,/* Cover the whole disk */ 648 /*lb_count*/0, 649 SSD_FULL_SIZE, 650 5 * 60 * 1000); 651 652 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 653 /*sense_flags*/SF_RETRY_UA, 654 &softc->device_stats); 655 656 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 657 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 658 CAM_SCSI_STATUS_ERROR) { 659 int asc, ascq; 660 int sense_key, error_code; 661 662 scsi_extract_sense(&ccb->csio.sense_data, 663 &error_code, 664 &sense_key, 665 &asc, &ascq); 666 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 667 scsi_sense_print(&ccb->csio); 668 } else { 669 xpt_print_path(periph->path); 670 printf("Synchronize cache failed, status " 671 "== 0x%x, scsi status == 0x%x\n", 672 ccb->csio.ccb_h.status, 673 ccb->csio.scsi_status); 674 } 675 } 676 677 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 678 cam_release_devq(ccb->ccb_h.path, 679 /*relsim_flags*/0, 680 /*reduction*/0, 681 /*timeout*/0, 682 /*getcount_only*/0); 683 684 xpt_release_ccb(ccb); 685 686 } 687 688 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 689 daprevent(periph, PR_ALLOW); 690 /* 691 * If we've got removeable media, mark the blocksize as 692 * unavailable, since it could change when new media is 693 * inserted. 694 */ 695 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 696 } 697 698 softc->flags &= ~DA_FLAG_OPEN; 699 cam_periph_unlock(periph); 700 cam_periph_release(periph); 701 return (0); 702 } 703 704 /* 705 * Actually translate the requested transfer into one the physical driver 706 * can understand. The transfer is described by a buf and will include 707 * only one physical transfer. 708 */ 709 static void 710 dastrategy(struct bio *bp) 711 { 712 struct cam_periph *periph; 713 struct da_softc *softc; 714 u_int unit; 715 u_int part; 716 int s; 717 718 unit = dkunit(bp->bio_dev); 719 part = dkpart(bp->bio_dev); 720 periph = cam_extend_get(daperiphs, unit); 721 if (periph == NULL) { 722 biofinish(bp, NULL, ENXIO); 723 return; 724 } 725 softc = (struct da_softc *)periph->softc; 726 #if 0 727 /* 728 * check it's not too big a transfer for our adapter 729 */ 730 scsi_minphys(bp,&sd_switch); 731 #endif 732 733 /* 734 * Mask interrupts so that the pack cannot be invalidated until 735 * after we are in the queue. Otherwise, we might not properly 736 * clean up one of the buffers. 737 */ 738 s = splbio(); 739 740 /* 741 * If the device has been made invalid, error out 742 */ 743 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 744 splx(s); 745 biofinish(bp, NULL, ENXIO); 746 return; 747 } 748 749 /* 750 * Place it in the queue of disk activities for this disk 751 */ 752 bioqdisksort(&softc->bio_queue, bp); 753 754 splx(s); 755 756 /* 757 * Schedule ourselves for performing the work. 758 */ 759 xpt_schedule(periph, /* XXX priority */1); 760 761 return; 762 } 763 764 /* For 2.2-stable support */ 765 #ifndef ENOIOCTL 766 #define ENOIOCTL -1 767 #endif 768 769 static int 770 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 771 { 772 struct cam_periph *periph; 773 struct da_softc *softc; 774 int unit; 775 int error; 776 777 unit = dkunit(dev); 778 periph = cam_extend_get(daperiphs, unit); 779 if (periph == NULL) 780 return (ENXIO); 781 782 softc = (struct da_softc *)periph->softc; 783 784 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 785 786 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) { 787 return (error); /* error code from tsleep */ 788 } 789 790 error = cam_periph_ioctl(periph, cmd, addr, daerror); 791 792 cam_periph_unlock(periph); 793 794 return (error); 795 } 796 797 static int 798 dadump(dev_t dev, void *virtual, vm_offset_t physical, off_t offset, size_t length) 799 { 800 struct cam_periph *periph; 801 struct da_softc *softc; 802 u_int unit; 803 u_int part; 804 u_int secsize; 805 struct ccb_scsiio csio; 806 807 unit = dkunit(dev); 808 part = dkpart(dev); 809 periph = cam_extend_get(daperiphs, unit); 810 if (periph == NULL) 811 return (ENXIO); 812 softc = (struct da_softc *)periph->softc; 813 secsize = softc->params.secsize; 814 815 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 816 return (ENXIO); 817 818 if (length > 0) { 819 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 820 csio.ccb_h.ccb_state = DA_CCB_DUMP; 821 scsi_read_write(&csio, 822 /*retries*/1, 823 dadone, 824 MSG_ORDERED_Q_TAG, 825 /*read*/FALSE, 826 /*byte2*/0, 827 /*minimum_cmd_size*/ softc->minimum_cmd_size, 828 offset / secsize, 829 length / secsize, 830 /*data_ptr*/(u_int8_t *) virtual, 831 /*dxfer_len*/length, 832 /*sense_len*/SSD_FULL_SIZE, 833 DA_DEFAULT_TIMEOUT * 1000); 834 xpt_polled_action((union ccb *)&csio); 835 836 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 837 printf("Aborting dump due to I/O error.\n"); 838 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 839 CAM_SCSI_STATUS_ERROR) 840 scsi_sense_print(&csio); 841 else 842 printf("status == 0x%x, scsi status == 0x%x\n", 843 csio.ccb_h.status, csio.scsi_status); 844 return(EIO); 845 } 846 return(0); 847 } 848 849 /* 850 * Sync the disk cache contents to the physical media. 851 */ 852 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 853 854 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 855 csio.ccb_h.ccb_state = DA_CCB_DUMP; 856 scsi_synchronize_cache(&csio, 857 /*retries*/1, 858 /*cbfcnp*/dadone, 859 MSG_SIMPLE_Q_TAG, 860 /*begin_lba*/0,/* Cover the whole disk */ 861 /*lb_count*/0, 862 SSD_FULL_SIZE, 863 5 * 60 * 1000); 864 xpt_polled_action((union ccb *)&csio); 865 866 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 867 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 868 CAM_SCSI_STATUS_ERROR) { 869 int asc, ascq; 870 int sense_key, error_code; 871 872 scsi_extract_sense(&csio.sense_data, 873 &error_code, 874 &sense_key, 875 &asc, &ascq); 876 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 877 scsi_sense_print(&csio); 878 } else { 879 xpt_print_path(periph->path); 880 printf("Synchronize cache failed, status " 881 "== 0x%x, scsi status == 0x%x\n", 882 csio.ccb_h.status, csio.scsi_status); 883 } 884 } 885 } 886 return (0); 887 } 888 889 static void 890 dainit(void) 891 { 892 cam_status status; 893 struct cam_path *path; 894 895 /* 896 * Create our extend array for storing the devices we attach to. 897 */ 898 daperiphs = cam_extend_new(); 899 SLIST_INIT(&softc_list); 900 if (daperiphs == NULL) { 901 printf("da: Failed to alloc extend array!\n"); 902 return; 903 } 904 905 /* 906 * Install a global async callback. This callback will 907 * receive async callbacks like "new device found". 908 */ 909 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 910 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 911 912 if (status == CAM_REQ_CMP) { 913 struct ccb_setasync csa; 914 915 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 916 csa.ccb_h.func_code = XPT_SASYNC_CB; 917 csa.event_enable = AC_FOUND_DEVICE; 918 csa.callback = daasync; 919 csa.callback_arg = NULL; 920 xpt_action((union ccb *)&csa); 921 status = csa.ccb_h.status; 922 xpt_free_path(path); 923 } 924 925 if (status != CAM_REQ_CMP) { 926 printf("da: Failed to attach master async callback " 927 "due to status 0x%x!\n", status); 928 } else { 929 930 /* 931 * Schedule a periodic event to occasionally send an 932 * ordered tag to a device. 933 */ 934 timeout(dasendorderedtag, NULL, 935 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 936 937 /* Register our shutdown event handler */ 938 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 939 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 940 printf("dainit: shutdown event registration failed!\n"); 941 } 942 } 943 944 static void 945 daoninvalidate(struct cam_periph *periph) 946 { 947 int s; 948 struct da_softc *softc; 949 struct bio *q_bp; 950 struct ccb_setasync csa; 951 952 softc = (struct da_softc *)periph->softc; 953 954 /* 955 * De-register any async callbacks. 956 */ 957 xpt_setup_ccb(&csa.ccb_h, periph->path, 958 /* priority */ 5); 959 csa.ccb_h.func_code = XPT_SASYNC_CB; 960 csa.event_enable = 0; 961 csa.callback = daasync; 962 csa.callback_arg = periph; 963 xpt_action((union ccb *)&csa); 964 965 softc->flags |= DA_FLAG_PACK_INVALID; 966 967 /* 968 * Although the oninvalidate() routines are always called at 969 * splsoftcam, we need to be at splbio() here to keep the buffer 970 * queue from being modified while we traverse it. 971 */ 972 s = splbio(); 973 974 /* 975 * Return all queued I/O with ENXIO. 976 * XXX Handle any transactions queued to the card 977 * with XPT_ABORT_CCB. 978 */ 979 while ((q_bp = bioq_first(&softc->bio_queue)) != NULL){ 980 bioq_remove(&softc->bio_queue, q_bp); 981 q_bp->bio_resid = q_bp->bio_bcount; 982 biofinish(q_bp, NULL, ENXIO); 983 } 984 splx(s); 985 986 SLIST_REMOVE(&softc_list, softc, da_softc, links); 987 988 xpt_print_path(periph->path); 989 printf("lost device\n"); 990 } 991 992 static void 993 dacleanup(struct cam_periph *periph) 994 { 995 struct da_softc *softc; 996 997 softc = (struct da_softc *)periph->softc; 998 999 devstat_remove_entry(&softc->device_stats); 1000 cam_extend_release(daperiphs, periph->unit_number); 1001 xpt_print_path(periph->path); 1002 printf("removing device entry\n"); 1003 if (softc->dev) { 1004 disk_destroy(softc->dev); 1005 } 1006 free(softc, M_DEVBUF); 1007 } 1008 1009 static void 1010 daasync(void *callback_arg, u_int32_t code, 1011 struct cam_path *path, void *arg) 1012 { 1013 struct cam_periph *periph; 1014 1015 periph = (struct cam_periph *)callback_arg; 1016 switch (code) { 1017 case AC_FOUND_DEVICE: 1018 { 1019 struct ccb_getdev *cgd; 1020 cam_status status; 1021 1022 cgd = (struct ccb_getdev *)arg; 1023 if (cgd == NULL) 1024 break; 1025 1026 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1027 && SID_TYPE(&cgd->inq_data) != T_RBC 1028 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1029 break; 1030 1031 /* 1032 * Allocate a peripheral instance for 1033 * this device and start the probe 1034 * process. 1035 */ 1036 status = cam_periph_alloc(daregister, daoninvalidate, 1037 dacleanup, dastart, 1038 "da", CAM_PERIPH_BIO, 1039 cgd->ccb_h.path, daasync, 1040 AC_FOUND_DEVICE, cgd); 1041 1042 if (status != CAM_REQ_CMP 1043 && status != CAM_REQ_INPROG) 1044 printf("daasync: Unable to attach to new device " 1045 "due to status 0x%x\n", status); 1046 break; 1047 } 1048 case AC_SENT_BDR: 1049 case AC_BUS_RESET: 1050 { 1051 struct da_softc *softc; 1052 struct ccb_hdr *ccbh; 1053 int s; 1054 1055 softc = (struct da_softc *)periph->softc; 1056 s = splsoftcam(); 1057 /* 1058 * Don't fail on the expected unit attention 1059 * that will occur. 1060 */ 1061 softc->flags |= DA_FLAG_RETRY_UA; 1062 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1063 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1064 splx(s); 1065 /* FALLTHROUGH*/ 1066 } 1067 default: 1068 cam_periph_async(periph, code, path, arg); 1069 break; 1070 } 1071 } 1072 1073 static cam_status 1074 daregister(struct cam_periph *periph, void *arg) 1075 { 1076 int s; 1077 struct da_softc *softc; 1078 struct ccb_setasync csa; 1079 struct ccb_getdev *cgd; 1080 caddr_t match; 1081 1082 cgd = (struct ccb_getdev *)arg; 1083 if (periph == NULL) { 1084 printf("daregister: periph was NULL!!\n"); 1085 return(CAM_REQ_CMP_ERR); 1086 } 1087 1088 if (cgd == NULL) { 1089 printf("daregister: no getdev CCB, can't register device\n"); 1090 return(CAM_REQ_CMP_ERR); 1091 } 1092 1093 softc = (struct da_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 1094 1095 if (softc == NULL) { 1096 printf("daregister: Unable to probe new device. " 1097 "Unable to allocate softc\n"); 1098 return(CAM_REQ_CMP_ERR); 1099 } 1100 1101 bzero(softc, sizeof(*softc)); 1102 LIST_INIT(&softc->pending_ccbs); 1103 softc->state = DA_STATE_PROBE; 1104 bioq_init(&softc->bio_queue); 1105 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1106 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1107 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1108 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1109 1110 periph->softc = softc; 1111 1112 cam_extend_set(daperiphs, periph->unit_number, periph); 1113 1114 /* 1115 * See if this device has any quirks. 1116 */ 1117 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1118 (caddr_t)da_quirk_table, 1119 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1120 sizeof(*da_quirk_table), scsi_inquiry_match); 1121 1122 if (match != NULL) 1123 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1124 else 1125 softc->quirks = DA_Q_NONE; 1126 1127 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1128 softc->minimum_cmd_size = 10; 1129 else 1130 softc->minimum_cmd_size = 6; 1131 1132 /* 1133 * Block our timeout handler while we 1134 * add this softc to the dev list. 1135 */ 1136 s = splsoftclock(); 1137 SLIST_INSERT_HEAD(&softc_list, softc, links); 1138 splx(s); 1139 1140 /* 1141 * The DA driver supports a blocksize, but 1142 * we don't know the blocksize until we do 1143 * a read capacity. So, set a flag to 1144 * indicate that the blocksize is 1145 * unavailable right now. We'll clear the 1146 * flag as soon as we've done a read capacity. 1147 */ 1148 devstat_add_entry(&softc->device_stats, "da", 1149 periph->unit_number, 0, 1150 DEVSTAT_BS_UNAVAILABLE, 1151 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1152 DEVSTAT_PRIORITY_DISK); 1153 1154 /* 1155 * Register this media as a disk 1156 */ 1157 softc->dev = disk_create(periph->unit_number, &softc->disk, 0, 1158 &da_cdevsw, &dadisk_cdevsw); 1159 1160 /* 1161 * Add async callbacks for bus reset and 1162 * bus device reset calls. I don't bother 1163 * checking if this fails as, in most cases, 1164 * the system will function just fine without 1165 * them and the only alternative would be to 1166 * not attach the device on failure. 1167 */ 1168 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1169 csa.ccb_h.func_code = XPT_SASYNC_CB; 1170 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1171 csa.callback = daasync; 1172 csa.callback_arg = periph; 1173 xpt_action((union ccb *)&csa); 1174 /* 1175 * Lock this peripheral until we are setup. 1176 * This first call can't block 1177 */ 1178 (void)cam_periph_lock(periph, PRIBIO); 1179 xpt_schedule(periph, /*priority*/5); 1180 1181 return(CAM_REQ_CMP); 1182 } 1183 1184 static void 1185 dastart(struct cam_periph *periph, union ccb *start_ccb) 1186 { 1187 struct da_softc *softc; 1188 1189 softc = (struct da_softc *)periph->softc; 1190 1191 1192 switch (softc->state) { 1193 case DA_STATE_NORMAL: 1194 { 1195 /* Pull a buffer from the queue and get going on it */ 1196 struct bio *bp; 1197 int s; 1198 1199 /* 1200 * See if there is a buf with work for us to do.. 1201 */ 1202 s = splbio(); 1203 bp = bioq_first(&softc->bio_queue); 1204 if (periph->immediate_priority <= periph->pinfo.priority) { 1205 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1206 ("queuing for immediate ccb\n")); 1207 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1208 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1209 periph_links.sle); 1210 periph->immediate_priority = CAM_PRIORITY_NONE; 1211 splx(s); 1212 wakeup(&periph->ccb_list); 1213 } else if (bp == NULL) { 1214 splx(s); 1215 xpt_release_ccb(start_ccb); 1216 } else { 1217 int oldspl; 1218 u_int8_t tag_code; 1219 1220 bioq_remove(&softc->bio_queue, bp); 1221 1222 devstat_start_transaction(&softc->device_stats); 1223 1224 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1225 softc->flags &= ~DA_FLAG_NEED_OTAG; 1226 softc->ordered_tag_count++; 1227 tag_code = MSG_ORDERED_Q_TAG; 1228 } else { 1229 tag_code = MSG_SIMPLE_Q_TAG; 1230 } 1231 if (da_no_6_byte && softc->minimum_cmd_size == 6) 1232 softc->minimum_cmd_size = 10; 1233 scsi_read_write(&start_ccb->csio, 1234 /*retries*/da_retry_count, 1235 dadone, 1236 tag_code, 1237 bp->bio_cmd == BIO_READ, 1238 /*byte2*/0, 1239 softc->minimum_cmd_size, 1240 bp->bio_pblkno, 1241 bp->bio_bcount / softc->params.secsize, 1242 bp->bio_data, 1243 bp->bio_bcount, 1244 /*sense_len*/SSD_FULL_SIZE, 1245 da_default_timeout * 1000); 1246 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1247 1248 /* 1249 * Block out any asyncronous callbacks 1250 * while we touch the pending ccb list. 1251 */ 1252 oldspl = splcam(); 1253 LIST_INSERT_HEAD(&softc->pending_ccbs, 1254 &start_ccb->ccb_h, periph_links.le); 1255 splx(oldspl); 1256 1257 /* We expect a unit attention from this device */ 1258 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1259 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1260 softc->flags &= ~DA_FLAG_RETRY_UA; 1261 } 1262 1263 start_ccb->ccb_h.ccb_bp = bp; 1264 bp = bioq_first(&softc->bio_queue); 1265 splx(s); 1266 1267 xpt_action(start_ccb); 1268 } 1269 1270 if (bp != NULL) { 1271 /* Have more work to do, so ensure we stay scheduled */ 1272 xpt_schedule(periph, /* XXX priority */1); 1273 } 1274 break; 1275 } 1276 case DA_STATE_PROBE: 1277 { 1278 struct ccb_scsiio *csio; 1279 struct scsi_read_capacity_data *rcap; 1280 1281 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1282 M_TEMP, 1283 M_NOWAIT); 1284 if (rcap == NULL) { 1285 printf("dastart: Couldn't malloc read_capacity data\n"); 1286 /* da_free_periph??? */ 1287 break; 1288 } 1289 csio = &start_ccb->csio; 1290 scsi_read_capacity(csio, 1291 /*retries*/4, 1292 dadone, 1293 MSG_SIMPLE_Q_TAG, 1294 rcap, 1295 SSD_FULL_SIZE, 1296 /*timeout*/5000); 1297 start_ccb->ccb_h.ccb_bp = NULL; 1298 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1299 xpt_action(start_ccb); 1300 break; 1301 } 1302 } 1303 } 1304 1305 static int 1306 cmd6workaround(union ccb *ccb) 1307 { 1308 struct scsi_rw_6 cmd6; 1309 struct scsi_rw_10 *cmd10; 1310 struct da_softc *softc; 1311 struct ccb_scsiio *csio; 1312 u_int8_t opcode; 1313 1314 csio = &ccb->csio; 1315 opcode = ((struct scsi_rw_6 *)csio->cdb_io.cdb_bytes)->opcode; 1316 1317 if (opcode != READ_6 && opcode != WRITE_6) 1318 return 0; 1319 1320 xpt_print_path(ccb->ccb_h.path); 1321 printf("READ(6)/WRITE(6) failed, " 1322 "minimum_cmd_size is increased to 10.\n"); 1323 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1324 softc->minimum_cmd_size = 10; 1325 1326 bcopy(&csio->cdb_io.cdb_bytes, &cmd6, sizeof(struct scsi_rw_6)); 1327 cmd10 = (struct scsi_rw_10 *) &csio->cdb_io.cdb_bytes; 1328 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1329 cmd10->byte2 = 0; 1330 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1331 cmd10->reserved = 0; 1332 scsi_ulto2b(cmd6.length, cmd10->length); 1333 cmd10->control = cmd6.control; 1334 csio->cdb_len = sizeof(*cmd10); 1335 1336 /* requeue */ 1337 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1338 xpt_action(ccb); 1339 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1340 cam_release_devq(ccb->ccb_h.path, 1341 /*relsim_flags*/0, 1342 /*reduction*/0, 1343 /*timeout*/0, 1344 /*getcount_only*/0); 1345 return (ERESTART); 1346 } 1347 1348 static void 1349 dadone(struct cam_periph *periph, union ccb *done_ccb) 1350 { 1351 struct da_softc *softc; 1352 struct ccb_scsiio *csio; 1353 1354 softc = (struct da_softc *)periph->softc; 1355 csio = &done_ccb->csio; 1356 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1357 case DA_CCB_BUFFER_IO: 1358 { 1359 struct bio *bp; 1360 int oldspl; 1361 1362 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1363 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1364 int error; 1365 int s; 1366 int sf; 1367 1368 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1369 sf = SF_RETRY_UA; 1370 else 1371 sf = 0; 1372 1373 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1374 if (error == ERESTART) { 1375 /* 1376 * A retry was scheuled, so 1377 * just return. 1378 */ 1379 return; 1380 } 1381 if (error != 0) { 1382 struct bio *q_bp; 1383 1384 s = splbio(); 1385 1386 if (error == ENXIO) { 1387 /* 1388 * Catastrophic error. Mark our pack as 1389 * invalid. 1390 */ 1391 /* XXX See if this is really a media 1392 * change first. 1393 */ 1394 xpt_print_path(periph->path); 1395 printf("Invalidating pack\n"); 1396 softc->flags |= DA_FLAG_PACK_INVALID; 1397 } 1398 1399 /* 1400 * return all queued I/O with EIO, so that 1401 * the client can retry these I/Os in the 1402 * proper order should it attempt to recover. 1403 */ 1404 while ((q_bp = bioq_first(&softc->bio_queue)) 1405 != NULL) { 1406 bioq_remove(&softc->bio_queue, q_bp); 1407 q_bp->bio_resid = q_bp->bio_bcount; 1408 biofinish(q_bp, NULL, EIO); 1409 } 1410 splx(s); 1411 bp->bio_error = error; 1412 bp->bio_resid = bp->bio_bcount; 1413 bp->bio_flags |= BIO_ERROR; 1414 } else { 1415 bp->bio_resid = csio->resid; 1416 bp->bio_error = 0; 1417 if (bp->bio_resid != 0) { 1418 /* Short transfer ??? */ 1419 #if 0 1420 if (cmd6workaround(done_ccb) 1421 == ERESTART) 1422 return; 1423 #endif 1424 bp->bio_flags |= BIO_ERROR; 1425 } 1426 } 1427 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1428 cam_release_devq(done_ccb->ccb_h.path, 1429 /*relsim_flags*/0, 1430 /*reduction*/0, 1431 /*timeout*/0, 1432 /*getcount_only*/0); 1433 } else { 1434 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1435 panic("REQ_CMP with QFRZN"); 1436 bp->bio_resid = csio->resid; 1437 if (csio->resid > 0) { 1438 /* Short transfer ??? */ 1439 #if 0 /* XXX most of the broken umass devices need this ad-hoc work around */ 1440 if (cmd6workaround(done_ccb) == ERESTART) 1441 return; 1442 #endif 1443 bp->bio_flags |= BIO_ERROR; 1444 } 1445 } 1446 1447 /* 1448 * Block out any asyncronous callbacks 1449 * while we touch the pending ccb list. 1450 */ 1451 oldspl = splcam(); 1452 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1453 splx(oldspl); 1454 1455 if (softc->device_stats.busy_count == 0) 1456 softc->flags |= DA_FLAG_WENT_IDLE; 1457 1458 biofinish(bp, &softc->device_stats, 0); 1459 break; 1460 } 1461 case DA_CCB_PROBE: 1462 { 1463 struct scsi_read_capacity_data *rdcap; 1464 char announce_buf[80]; 1465 1466 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1467 1468 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1469 struct disk_params *dp; 1470 1471 dasetgeom(periph, rdcap); 1472 dp = &softc->params; 1473 snprintf(announce_buf, sizeof(announce_buf), 1474 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1475 (unsigned long) (((u_int64_t)dp->secsize * 1476 dp->sectors) / (1024*1024)), dp->sectors, 1477 dp->secsize, dp->heads, dp->secs_per_track, 1478 dp->cylinders); 1479 } else { 1480 int error; 1481 1482 announce_buf[0] = '\0'; 1483 1484 /* 1485 * Retry any UNIT ATTENTION type errors. They 1486 * are expected at boot. 1487 */ 1488 error = daerror(done_ccb, CAM_RETRY_SELTO, 1489 SF_RETRY_UA|SF_NO_PRINT); 1490 if (error == ERESTART) { 1491 /* 1492 * A retry was scheuled, so 1493 * just return. 1494 */ 1495 return; 1496 } else if (error != 0) { 1497 struct scsi_sense_data *sense; 1498 int asc, ascq; 1499 int sense_key, error_code; 1500 int have_sense; 1501 cam_status status; 1502 struct ccb_getdev cgd; 1503 1504 /* Don't wedge this device's queue */ 1505 status = done_ccb->ccb_h.status; 1506 if ((status & CAM_DEV_QFRZN) != 0) 1507 cam_release_devq(done_ccb->ccb_h.path, 1508 /*relsim_flags*/0, 1509 /*reduction*/0, 1510 /*timeout*/0, 1511 /*getcount_only*/0); 1512 1513 1514 xpt_setup_ccb(&cgd.ccb_h, 1515 done_ccb->ccb_h.path, 1516 /* priority */ 1); 1517 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1518 xpt_action((union ccb *)&cgd); 1519 1520 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1521 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1522 || ((status & CAM_AUTOSNS_VALID) == 0)) 1523 have_sense = FALSE; 1524 else 1525 have_sense = TRUE; 1526 1527 if (have_sense) { 1528 sense = &csio->sense_data; 1529 scsi_extract_sense(sense, &error_code, 1530 &sense_key, 1531 &asc, &ascq); 1532 } 1533 /* 1534 * Attach to anything that claims to be a 1535 * direct access or optical disk device, 1536 * as long as it doesn't return a "Logical 1537 * unit not supported" (0x25) error. 1538 */ 1539 if ((have_sense) && (asc != 0x25) 1540 && (error_code == SSD_CURRENT_ERROR)) { 1541 const char *sense_key_desc; 1542 const char *asc_desc; 1543 1544 scsi_sense_desc(sense_key, asc, ascq, 1545 &cgd.inq_data, 1546 &sense_key_desc, 1547 &asc_desc); 1548 snprintf(announce_buf, 1549 sizeof(announce_buf), 1550 "Attempt to query device " 1551 "size failed: %s, %s", 1552 sense_key_desc, 1553 asc_desc); 1554 } else { 1555 if (have_sense) 1556 scsi_sense_print( 1557 &done_ccb->csio); 1558 else { 1559 xpt_print_path(periph->path); 1560 printf("got CAM status %#x\n", 1561 done_ccb->ccb_h.status); 1562 } 1563 1564 xpt_print_path(periph->path); 1565 printf("fatal error, failed" 1566 " to attach to device\n"); 1567 1568 /* 1569 * Free up resources. 1570 */ 1571 cam_periph_invalidate(periph); 1572 } 1573 } 1574 } 1575 free(rdcap, M_TEMP); 1576 if (announce_buf[0] != '\0') 1577 xpt_announce_periph(periph, announce_buf); 1578 softc->state = DA_STATE_NORMAL; 1579 /* 1580 * Since our peripheral may be invalidated by an error 1581 * above or an external event, we must release our CCB 1582 * before releasing the probe lock on the peripheral. 1583 * The peripheral will only go away once the last lock 1584 * is removed, and we need it around for the CCB release 1585 * operation. 1586 */ 1587 xpt_release_ccb(done_ccb); 1588 cam_periph_unlock(periph); 1589 return; 1590 } 1591 case DA_CCB_WAITING: 1592 { 1593 /* Caller will release the CCB */ 1594 wakeup(&done_ccb->ccb_h.cbfcnp); 1595 return; 1596 } 1597 case DA_CCB_DUMP: 1598 /* No-op. We're polling */ 1599 return; 1600 default: 1601 break; 1602 } 1603 xpt_release_ccb(done_ccb); 1604 } 1605 1606 static int 1607 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1608 { 1609 struct da_softc *softc; 1610 struct cam_periph *periph; 1611 int error, sense_key, error_code, asc, ascq; 1612 1613 periph = xpt_path_periph(ccb->ccb_h.path); 1614 softc = (struct da_softc *)periph->softc; 1615 1616 /* 1617 * Automatically detect devices that do not support 1618 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1619 */ 1620 error = 0; 1621 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_SCSI_STATUS_ERROR 1622 && ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) { 1623 scsi_extract_sense(&ccb->csio.sense_data, 1624 &error_code, &sense_key, &asc, &ascq); 1625 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1626 error = cmd6workaround(ccb); 1627 } 1628 if (error == ERESTART) 1629 return ERESTART; 1630 1631 /* 1632 * XXX 1633 * Until we have a better way of doing pack validation, 1634 * don't treat UAs as errors. 1635 */ 1636 sense_flags |= SF_RETRY_UA; 1637 return(cam_periph_error(ccb, cam_flags, sense_flags, 1638 &softc->saved_ccb)); 1639 } 1640 1641 static void 1642 daprevent(struct cam_periph *periph, int action) 1643 { 1644 struct da_softc *softc; 1645 union ccb *ccb; 1646 int error; 1647 1648 softc = (struct da_softc *)periph->softc; 1649 1650 if (((action == PR_ALLOW) 1651 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1652 || ((action == PR_PREVENT) 1653 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1654 return; 1655 } 1656 1657 ccb = cam_periph_getccb(periph, /*priority*/1); 1658 1659 scsi_prevent(&ccb->csio, 1660 /*retries*/1, 1661 /*cbcfp*/dadone, 1662 MSG_SIMPLE_Q_TAG, 1663 action, 1664 SSD_FULL_SIZE, 1665 5000); 1666 1667 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1668 SF_RETRY_UA, &softc->device_stats); 1669 1670 if (error == 0) { 1671 if (action == PR_ALLOW) 1672 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1673 else 1674 softc->flags |= DA_FLAG_PACK_LOCKED; 1675 } 1676 1677 xpt_release_ccb(ccb); 1678 } 1679 1680 static void 1681 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap) 1682 { 1683 struct ccb_calc_geometry ccg; 1684 struct da_softc *softc; 1685 struct disk_params *dp; 1686 1687 softc = (struct da_softc *)periph->softc; 1688 1689 dp = &softc->params; 1690 dp->secsize = scsi_4btoul(rdcap->length); 1691 dp->sectors = scsi_4btoul(rdcap->addr) + 1; 1692 /* 1693 * Have the controller provide us with a geometry 1694 * for this disk. The only time the geometry 1695 * matters is when we boot and the controller 1696 * is the only one knowledgeable enough to come 1697 * up with something that will make this a bootable 1698 * device. 1699 */ 1700 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1701 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1702 ccg.block_size = dp->secsize; 1703 ccg.volume_size = dp->sectors; 1704 ccg.heads = 0; 1705 ccg.secs_per_track = 0; 1706 ccg.cylinders = 0; 1707 xpt_action((union ccb*)&ccg); 1708 dp->heads = ccg.heads; 1709 dp->secs_per_track = ccg.secs_per_track; 1710 dp->cylinders = ccg.cylinders; 1711 } 1712 1713 static void 1714 dasendorderedtag(void *arg) 1715 { 1716 struct da_softc *softc; 1717 int s; 1718 1719 for (softc = SLIST_FIRST(&softc_list); 1720 softc != NULL; 1721 softc = SLIST_NEXT(softc, links)) { 1722 s = splsoftcam(); 1723 if ((softc->ordered_tag_count == 0) 1724 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1725 softc->flags |= DA_FLAG_NEED_OTAG; 1726 } 1727 if (softc->device_stats.busy_count > 0) 1728 softc->flags &= ~DA_FLAG_WENT_IDLE; 1729 1730 softc->ordered_tag_count = 0; 1731 splx(s); 1732 } 1733 /* Queue us up again */ 1734 timeout(dasendorderedtag, NULL, 1735 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1736 } 1737 1738 /* 1739 * Step through all DA peripheral drivers, and if the device is still open, 1740 * sync the disk cache to physical media. 1741 */ 1742 static void 1743 dashutdown(void * arg, int howto) 1744 { 1745 struct cam_periph *periph; 1746 struct da_softc *softc; 1747 1748 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1749 union ccb ccb; 1750 softc = (struct da_softc *)periph->softc; 1751 1752 /* 1753 * We only sync the cache if the drive is still open, and 1754 * if the drive is capable of it.. 1755 */ 1756 if (((softc->flags & DA_FLAG_OPEN) == 0) 1757 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1758 continue; 1759 1760 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1761 1762 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1763 scsi_synchronize_cache(&ccb.csio, 1764 /*retries*/1, 1765 /*cbfcnp*/dadone, 1766 MSG_SIMPLE_Q_TAG, 1767 /*begin_lba*/0, /* whole disk */ 1768 /*lb_count*/0, 1769 SSD_FULL_SIZE, 1770 60 * 60 * 1000); 1771 1772 xpt_polled_action(&ccb); 1773 1774 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1775 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1776 CAM_SCSI_STATUS_ERROR) 1777 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1778 int error_code, sense_key, asc, ascq; 1779 1780 scsi_extract_sense(&ccb.csio.sense_data, 1781 &error_code, &sense_key, 1782 &asc, &ascq); 1783 1784 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1785 scsi_sense_print(&ccb.csio); 1786 } else { 1787 xpt_print_path(periph->path); 1788 printf("Synchronize cache failed, status " 1789 "== 0x%x, scsi status == 0x%x\n", 1790 ccb.ccb_h.status, ccb.csio.scsi_status); 1791 } 1792 } 1793 1794 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1795 cam_release_devq(ccb.ccb_h.path, 1796 /*relsim_flags*/0, 1797 /*reduction*/0, 1798 /*timeout*/0, 1799 /*getcount_only*/0); 1800 1801 } 1802 } 1803 1804 #else /* !_KERNEL */ 1805 1806 /* 1807 * XXX This is only left out of the kernel build to silence warnings. If, 1808 * for some reason this function is used in the kernel, the ifdefs should 1809 * be moved so it is included both in the kernel and userland. 1810 */ 1811 void 1812 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1813 void (*cbfcnp)(struct cam_periph *, union ccb *), 1814 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1815 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1816 u_int32_t timeout) 1817 { 1818 struct scsi_format_unit *scsi_cmd; 1819 1820 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1821 scsi_cmd->opcode = FORMAT_UNIT; 1822 scsi_cmd->byte2 = byte2; 1823 scsi_ulto2b(ileave, scsi_cmd->interleave); 1824 1825 cam_fill_csio(csio, 1826 retries, 1827 cbfcnp, 1828 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1829 tag_action, 1830 data_ptr, 1831 dxfer_len, 1832 sense_len, 1833 sizeof(*scsi_cmd), 1834 timeout); 1835 } 1836 1837 #endif /* _KERNEL */ 1838