1 /* 2 * Implementation of SCSI Direct Access Peripheral driver for CAM. 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #ifdef _KERNEL 33 #include "opt_da.h" 34 #include "opt_hw_wdog.h" 35 #endif /* _KERNEL */ 36 37 #include <sys/param.h> 38 39 #ifdef _KERNEL 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/bio.h> 43 #include <sys/sysctl.h> 44 #include <sys/taskqueue.h> 45 #endif /* _KERNEL */ 46 47 #include <sys/devicestat.h> 48 #include <sys/conf.h> 49 #include <sys/eventhandler.h> 50 #include <sys/malloc.h> 51 #include <sys/cons.h> 52 53 #include <machine/md_var.h> 54 55 #include <vm/vm.h> 56 #include <vm/pmap.h> 57 58 #include <geom/geom_disk.h> 59 60 #ifndef _KERNEL 61 #include <stdio.h> 62 #include <string.h> 63 #endif /* _KERNEL */ 64 65 #include <cam/cam.h> 66 #include <cam/cam_ccb.h> 67 #include <cam/cam_periph.h> 68 #include <cam/cam_xpt_periph.h> 69 70 #include <cam/scsi/scsi_message.h> 71 72 #ifndef _KERNEL 73 #include <cam/scsi/scsi_da.h> 74 #endif /* !_KERNEL */ 75 76 #ifdef _KERNEL 77 typedef enum { 78 DA_STATE_PROBE, 79 DA_STATE_PROBE2, 80 DA_STATE_NORMAL 81 } da_state; 82 83 typedef enum { 84 DA_FLAG_PACK_INVALID = 0x001, 85 DA_FLAG_NEW_PACK = 0x002, 86 DA_FLAG_PACK_LOCKED = 0x004, 87 DA_FLAG_PACK_REMOVABLE = 0x008, 88 DA_FLAG_TAGGED_QUEUING = 0x010, 89 DA_FLAG_NEED_OTAG = 0x020, 90 DA_FLAG_WENT_IDLE = 0x040, 91 DA_FLAG_RETRY_UA = 0x080, 92 DA_FLAG_OPEN = 0x100, 93 DA_FLAG_SCTX_INIT = 0x200 94 } da_flags; 95 96 typedef enum { 97 DA_Q_NONE = 0x00, 98 DA_Q_NO_SYNC_CACHE = 0x01, 99 DA_Q_NO_6_BYTE = 0x02, 100 DA_Q_NO_PREVENT = 0x04 101 } da_quirks; 102 103 typedef enum { 104 DA_CCB_PROBE = 0x01, 105 DA_CCB_PROBE2 = 0x02, 106 DA_CCB_BUFFER_IO = 0x03, 107 DA_CCB_WAITING = 0x04, 108 DA_CCB_DUMP = 0x05, 109 DA_CCB_TYPE_MASK = 0x0F, 110 DA_CCB_RETRY_UA = 0x10 111 } da_ccb_state; 112 113 /* Offsets into our private area for storing information */ 114 #define ccb_state ppriv_field0 115 #define ccb_bp ppriv_ptr1 116 117 struct disk_params { 118 u_int8_t heads; 119 u_int32_t cylinders; 120 u_int8_t secs_per_track; 121 u_int32_t secsize; /* Number of bytes/sector */ 122 u_int64_t sectors; /* total number sectors */ 123 }; 124 125 struct da_softc { 126 struct bio_queue_head bio_queue; 127 SLIST_ENTRY(da_softc) links; 128 LIST_HEAD(, ccb_hdr) pending_ccbs; 129 da_state state; 130 da_flags flags; 131 da_quirks quirks; 132 int minimum_cmd_size; 133 int ordered_tag_count; 134 int outstanding_cmds; 135 struct disk_params params; 136 struct disk disk; 137 union ccb saved_ccb; 138 struct task sysctl_task; 139 struct sysctl_ctx_list sysctl_ctx; 140 struct sysctl_oid *sysctl_tree; 141 }; 142 143 struct da_quirk_entry { 144 struct scsi_inquiry_pattern inq_pat; 145 da_quirks quirks; 146 }; 147 148 static const char quantum[] = "QUANTUM"; 149 static const char microp[] = "MICROP"; 150 151 static struct da_quirk_entry da_quirk_table[] = 152 { 153 /* SPI, FC devices */ 154 { 155 /* 156 * Fujitsu M2513A MO drives. 157 * Tested devices: M2513A2 firmware versions 1200 & 1300. 158 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 159 * Reported by: W.Scholten <whs@xs4all.nl> 160 */ 161 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 162 /*quirks*/ DA_Q_NO_SYNC_CACHE 163 }, 164 { 165 /* See above. */ 166 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 167 /*quirks*/ DA_Q_NO_SYNC_CACHE 168 }, 169 { 170 /* 171 * This particular Fujitsu drive doesn't like the 172 * synchronize cache command. 173 * Reported by: Tom Jackson <toj@gorilla.net> 174 */ 175 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 176 /*quirks*/ DA_Q_NO_SYNC_CACHE 177 178 }, 179 { 180 /* 181 * This drive doesn't like the synchronize cache command 182 * either. Reported by: Matthew Jacob <mjacob@feral.com> 183 * in NetBSD PR kern/6027, August 24, 1998. 184 */ 185 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 186 /*quirks*/ DA_Q_NO_SYNC_CACHE 187 }, 188 { 189 /* 190 * This drive doesn't like the synchronize cache command 191 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 192 * (PR 8882). 193 */ 194 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 195 /*quirks*/ DA_Q_NO_SYNC_CACHE 196 }, 197 { 198 /* 199 * Doesn't like the synchronize cache command. 200 * Reported by: Blaz Zupan <blaz@gold.amis.net> 201 */ 202 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 203 /*quirks*/ DA_Q_NO_SYNC_CACHE 204 }, 205 { 206 /* 207 * Doesn't like the synchronize cache command. 208 */ 209 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 210 /*quirks*/ DA_Q_NO_SYNC_CACHE 211 }, 212 { 213 /* 214 * Doesn't like the synchronize cache command. 215 */ 216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 217 /*quirks*/ DA_Q_NO_SYNC_CACHE 218 }, 219 { 220 /* 221 * Doesn't work correctly with 6 byte reads/writes. 222 * Returns illegal request, and points to byte 9 of the 223 * 6-byte CDB. 224 * Reported by: Adam McDougall <bsdx@spawnet.com> 225 */ 226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 227 /*quirks*/ DA_Q_NO_6_BYTE 228 }, 229 { 230 /* See above. */ 231 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 232 /*quirks*/ DA_Q_NO_6_BYTE 233 }, 234 { 235 /* 236 * The CISS RAID controllers do not support SYNC_CACHE 237 */ 238 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 239 /*quirks*/ DA_Q_NO_SYNC_CACHE 240 }, 241 #ifdef DA_OLD_QUIRKS 242 /* USB floppy devices supported by umass(4) */ 243 { 244 /* 245 * This USB floppy drive uses the UFI command set. This 246 * command set is a derivative of the ATAPI command set and 247 * does not support READ_6 commands only READ_10. It also does 248 * not support sync cache (0x35). 249 */ 250 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 251 /*quirks*/ DA_Q_NO_SYNC_CACHE 252 }, 253 { 254 /* Another USB floppy */ 255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 256 /*quirks*/ DA_Q_NO_SYNC_CACHE 257 }, 258 { 259 /* 260 * The vendor, product and version strings coming from the 261 * controller are null terminated instead of being padded with 262 * spaces. The trailing wildcard character '*' is required. 263 */ 264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 265 /*quirks*/ DA_Q_NO_SYNC_CACHE 266 }, 267 { 268 /* 269 * SmartDisk (Mitsumi) USB floppy drive 270 * PR: kern/50226 271 */ 272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 273 /*quirks*/ DA_Q_NO_SYNC_CACHE 274 }, 275 /* USB mass storage devices supported by umass(4) */ 276 { 277 /* 278 * Sony Memory Stick adapter MSAC-US1 and 279 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 280 * Make all sony MS* products use this quirk. 281 */ 282 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 283 /*quirks*/ DA_Q_NO_SYNC_CACHE 284 }, 285 { 286 /* 287 * Sony Memory Stick adapter for the CLIE series 288 * of PalmOS PDA's 289 */ 290 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 291 /*quirks*/ DA_Q_NO_SYNC_CACHE 292 }, 293 { 294 /* 295 * Intelligent Stick USB disk-on-key 296 * PR: kern/53005 297 */ 298 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card", 299 "IntelligentStick*", "*"}, 300 /*quirks*/ DA_Q_NO_SYNC_CACHE 301 }, 302 { 303 /* 304 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 305 */ 306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 307 /*quirks*/ DA_Q_NO_SYNC_CACHE 308 }, 309 { 310 /* 311 * Microtech USB CameraMate 312 */ 313 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 314 "Compact Flash*", "*"}, 315 /*quirks*/ DA_Q_NO_SYNC_CACHE 316 }, 317 { 318 /* 319 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 320 */ 321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 322 /*quirks*/ DA_Q_NO_SYNC_CACHE 323 }, 324 { 325 /* 326 * Olympus digital cameras (E-100RS, E-10). 327 */ 328 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 329 /*quirks*/ DA_Q_NO_SYNC_CACHE 330 }, 331 { 332 /* 333 * KingByte Pen Drives 334 */ 335 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 336 /*quirks*/ DA_Q_NO_SYNC_CACHE 337 }, 338 { 339 /* 340 * Minolta Dimage E203 341 */ 342 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 343 /*quirks*/ DA_Q_NO_SYNC_CACHE 344 }, 345 { 346 /* 347 * Daisy Technology PhotoClip on Zoran chip 348 * PR: kern/43580 349 */ 350 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 351 /*quirks*/ DA_Q_NO_SYNC_CACHE 352 }, 353 { 354 /* 355 * Sony USB Key-Storage 356 * PR: kern/46386 357 */ 358 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 359 /*quirks*/ DA_Q_NO_SYNC_CACHE 360 }, 361 #endif /* DA_OLD_QUIRKS */ 362 { 363 /* 364 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 365 * PR: kern/51675 366 */ 367 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 368 /*quirks*/ DA_Q_NO_SYNC_CACHE 369 }, 370 { 371 /* 372 * Jungsoft NEXDISK USB flash key 373 * PR: kern/54737 374 */ 375 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 376 /*quirks*/ DA_Q_NO_SYNC_CACHE 377 }, 378 { 379 /* 380 * Creative Nomad MUVO mp3 player (USB) 381 * PR: kern/53094 382 */ 383 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 384 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 385 }, 386 }; 387 388 static disk_strategy_t dastrategy; 389 static dumper_t dadump; 390 static periph_init_t dainit; 391 static void daasync(void *callback_arg, u_int32_t code, 392 struct cam_path *path, void *arg); 393 static void dasysctlinit(void *context, int pending); 394 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 395 static periph_ctor_t daregister; 396 static periph_dtor_t dacleanup; 397 static periph_start_t dastart; 398 static periph_oninv_t daoninvalidate; 399 static void dadone(struct cam_periph *periph, 400 union ccb *done_ccb); 401 static int daerror(union ccb *ccb, u_int32_t cam_flags, 402 u_int32_t sense_flags); 403 static void daprevent(struct cam_periph *periph, int action); 404 static int dagetcapacity(struct cam_periph *periph); 405 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 406 uint64_t maxsector); 407 static timeout_t dasendorderedtag; 408 static void dashutdown(void *arg, int howto); 409 410 #ifndef DA_DEFAULT_TIMEOUT 411 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 412 #endif 413 414 #ifndef DA_DEFAULT_RETRY 415 #define DA_DEFAULT_RETRY 4 416 #endif 417 418 static int da_retry_count = DA_DEFAULT_RETRY; 419 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 420 421 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 422 "CAM Direct Access Disk driver"); 423 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 424 &da_retry_count, 0, "Normal I/O retry count"); 425 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 426 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 427 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 428 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 429 430 /* 431 * DA_ORDEREDTAG_INTERVAL determines how often, relative 432 * to the default timeout, we check to see whether an ordered 433 * tagged transaction is appropriate to prevent simple tag 434 * starvation. Since we'd like to ensure that there is at least 435 * 1/2 of the timeout length left for a starved transaction to 436 * complete after we've sent an ordered tag, we must poll at least 437 * four times in every timeout period. This takes care of the worst 438 * case where a starved transaction starts during an interval that 439 * meets the requirement "don't send an ordered tag" test so it takes 440 * us two intervals to determine that a tag must be sent. 441 */ 442 #ifndef DA_ORDEREDTAG_INTERVAL 443 #define DA_ORDEREDTAG_INTERVAL 4 444 #endif 445 446 static struct periph_driver dadriver = 447 { 448 dainit, "da", 449 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 450 }; 451 452 PERIPHDRIVER_DECLARE(da, dadriver); 453 454 static SLIST_HEAD(,da_softc) softc_list; 455 456 static int 457 daopen(struct disk *dp) 458 { 459 struct cam_periph *periph; 460 struct da_softc *softc; 461 int unit; 462 int error; 463 int s; 464 465 s = splsoftcam(); 466 periph = (struct cam_periph *)dp->d_drv1; 467 unit = periph->unit_number; 468 if (periph == NULL) { 469 splx(s); 470 return (ENXIO); 471 } 472 473 softc = (struct da_softc *)periph->softc; 474 475 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 476 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 477 unit)); 478 479 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 480 return (error); /* error code from tsleep */ 481 482 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 483 return(ENXIO); 484 softc->flags |= DA_FLAG_OPEN; 485 486 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 487 /* Invalidate our pack information. */ 488 softc->flags &= ~DA_FLAG_PACK_INVALID; 489 } 490 splx(s); 491 492 error = dagetcapacity(periph); 493 494 if (error == 0) { 495 496 softc->disk.d_sectorsize = softc->params.secsize; 497 softc->disk.d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 498 /* XXX: these are not actually "firmware" values, so they may be wrong */ 499 softc->disk.d_fwsectors = softc->params.secs_per_track; 500 softc->disk.d_fwheads = softc->params.heads; 501 softc->disk.d_devstat->block_size = softc->params.secsize; 502 softc->disk.d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 503 } 504 505 if (error == 0) { 506 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 507 (softc->quirks & DA_Q_NO_PREVENT) == 0) 508 daprevent(periph, PR_PREVENT); 509 } else { 510 softc->flags &= ~DA_FLAG_OPEN; 511 cam_periph_release(periph); 512 } 513 cam_periph_unlock(periph); 514 return (error); 515 } 516 517 static int 518 daclose(struct disk *dp) 519 { 520 struct cam_periph *periph; 521 struct da_softc *softc; 522 int error; 523 524 periph = (struct cam_periph *)dp->d_drv1; 525 if (periph == NULL) 526 return (ENXIO); 527 528 softc = (struct da_softc *)periph->softc; 529 530 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 531 return (error); /* error code from tsleep */ 532 } 533 534 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 535 union ccb *ccb; 536 537 ccb = cam_periph_getccb(periph, /*priority*/1); 538 539 scsi_synchronize_cache(&ccb->csio, 540 /*retries*/1, 541 /*cbfcnp*/dadone, 542 MSG_SIMPLE_Q_TAG, 543 /*begin_lba*/0,/* Cover the whole disk */ 544 /*lb_count*/0, 545 SSD_FULL_SIZE, 546 5 * 60 * 1000); 547 548 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 549 /*sense_flags*/SF_RETRY_UA, 550 softc->disk.d_devstat); 551 552 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 553 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 554 CAM_SCSI_STATUS_ERROR) { 555 int asc, ascq; 556 int sense_key, error_code; 557 558 scsi_extract_sense(&ccb->csio.sense_data, 559 &error_code, 560 &sense_key, 561 &asc, &ascq); 562 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 563 scsi_sense_print(&ccb->csio); 564 } else { 565 xpt_print_path(periph->path); 566 printf("Synchronize cache failed, status " 567 "== 0x%x, scsi status == 0x%x\n", 568 ccb->csio.ccb_h.status, 569 ccb->csio.scsi_status); 570 } 571 } 572 573 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 574 cam_release_devq(ccb->ccb_h.path, 575 /*relsim_flags*/0, 576 /*reduction*/0, 577 /*timeout*/0, 578 /*getcount_only*/0); 579 580 xpt_release_ccb(ccb); 581 582 } 583 584 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 585 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 586 daprevent(periph, PR_ALLOW); 587 /* 588 * If we've got removeable media, mark the blocksize as 589 * unavailable, since it could change when new media is 590 * inserted. 591 */ 592 softc->disk.d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 593 } 594 595 softc->flags &= ~DA_FLAG_OPEN; 596 cam_periph_unlock(periph); 597 cam_periph_release(periph); 598 return (0); 599 } 600 601 /* 602 * Actually translate the requested transfer into one the physical driver 603 * can understand. The transfer is described by a buf and will include 604 * only one physical transfer. 605 */ 606 static void 607 dastrategy(struct bio *bp) 608 { 609 struct cam_periph *periph; 610 struct da_softc *softc; 611 int s; 612 613 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 614 if (periph == NULL) { 615 biofinish(bp, NULL, ENXIO); 616 return; 617 } 618 softc = (struct da_softc *)periph->softc; 619 #if 0 620 /* 621 * check it's not too big a transfer for our adapter 622 */ 623 scsi_minphys(bp,&sd_switch); 624 #endif 625 626 /* 627 * Mask interrupts so that the pack cannot be invalidated until 628 * after we are in the queue. Otherwise, we might not properly 629 * clean up one of the buffers. 630 */ 631 s = splbio(); 632 633 /* 634 * If the device has been made invalid, error out 635 */ 636 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 637 splx(s); 638 biofinish(bp, NULL, ENXIO); 639 return; 640 } 641 642 /* 643 * Place it in the queue of disk activities for this disk 644 */ 645 bioq_disksort(&softc->bio_queue, bp); 646 647 splx(s); 648 649 /* 650 * Schedule ourselves for performing the work. 651 */ 652 xpt_schedule(periph, /* XXX priority */1); 653 654 return; 655 } 656 657 static int 658 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 659 { 660 struct cam_periph *periph; 661 struct da_softc *softc; 662 u_int secsize; 663 struct ccb_scsiio csio; 664 struct disk *dp; 665 666 dp = arg; 667 periph = dp->d_drv1; 668 if (periph == NULL) 669 return (ENXIO); 670 softc = (struct da_softc *)periph->softc; 671 secsize = softc->params.secsize; 672 673 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 674 return (ENXIO); 675 676 if (length > 0) { 677 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 678 csio.ccb_h.ccb_state = DA_CCB_DUMP; 679 scsi_read_write(&csio, 680 /*retries*/1, 681 dadone, 682 MSG_ORDERED_Q_TAG, 683 /*read*/FALSE, 684 /*byte2*/0, 685 /*minimum_cmd_size*/ softc->minimum_cmd_size, 686 offset / secsize, 687 length / secsize, 688 /*data_ptr*/(u_int8_t *) virtual, 689 /*dxfer_len*/length, 690 /*sense_len*/SSD_FULL_SIZE, 691 DA_DEFAULT_TIMEOUT * 1000); 692 xpt_polled_action((union ccb *)&csio); 693 694 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 695 printf("Aborting dump due to I/O error.\n"); 696 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 697 CAM_SCSI_STATUS_ERROR) 698 scsi_sense_print(&csio); 699 else 700 printf("status == 0x%x, scsi status == 0x%x\n", 701 csio.ccb_h.status, csio.scsi_status); 702 return(EIO); 703 } 704 return(0); 705 } 706 707 /* 708 * Sync the disk cache contents to the physical media. 709 */ 710 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 711 712 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 713 csio.ccb_h.ccb_state = DA_CCB_DUMP; 714 scsi_synchronize_cache(&csio, 715 /*retries*/1, 716 /*cbfcnp*/dadone, 717 MSG_SIMPLE_Q_TAG, 718 /*begin_lba*/0,/* Cover the whole disk */ 719 /*lb_count*/0, 720 SSD_FULL_SIZE, 721 5 * 60 * 1000); 722 xpt_polled_action((union ccb *)&csio); 723 724 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 725 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 726 CAM_SCSI_STATUS_ERROR) { 727 int asc, ascq; 728 int sense_key, error_code; 729 730 scsi_extract_sense(&csio.sense_data, 731 &error_code, 732 &sense_key, 733 &asc, &ascq); 734 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 735 scsi_sense_print(&csio); 736 } else { 737 xpt_print_path(periph->path); 738 printf("Synchronize cache failed, status " 739 "== 0x%x, scsi status == 0x%x\n", 740 csio.ccb_h.status, csio.scsi_status); 741 } 742 } 743 } 744 return (0); 745 } 746 747 static void 748 dainit(void) 749 { 750 cam_status status; 751 struct cam_path *path; 752 753 SLIST_INIT(&softc_list); 754 755 /* 756 * Install a global async callback. This callback will 757 * receive async callbacks like "new device found". 758 */ 759 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 760 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 761 762 if (status == CAM_REQ_CMP) { 763 struct ccb_setasync csa; 764 765 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 766 csa.ccb_h.func_code = XPT_SASYNC_CB; 767 csa.event_enable = AC_FOUND_DEVICE; 768 csa.callback = daasync; 769 csa.callback_arg = NULL; 770 xpt_action((union ccb *)&csa); 771 status = csa.ccb_h.status; 772 xpt_free_path(path); 773 } 774 775 if (status != CAM_REQ_CMP) { 776 printf("da: Failed to attach master async callback " 777 "due to status 0x%x!\n", status); 778 } else { 779 780 /* 781 * Schedule a periodic event to occasionally send an 782 * ordered tag to a device. 783 */ 784 timeout(dasendorderedtag, NULL, 785 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 786 787 /* Register our shutdown event handler */ 788 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 789 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 790 printf("dainit: shutdown event registration failed!\n"); 791 } 792 } 793 794 static void 795 daoninvalidate(struct cam_periph *periph) 796 { 797 int s; 798 struct da_softc *softc; 799 struct ccb_setasync csa; 800 801 softc = (struct da_softc *)periph->softc; 802 803 /* 804 * De-register any async callbacks. 805 */ 806 xpt_setup_ccb(&csa.ccb_h, periph->path, 807 /* priority */ 5); 808 csa.ccb_h.func_code = XPT_SASYNC_CB; 809 csa.event_enable = 0; 810 csa.callback = daasync; 811 csa.callback_arg = periph; 812 xpt_action((union ccb *)&csa); 813 814 softc->flags |= DA_FLAG_PACK_INVALID; 815 816 /* 817 * Although the oninvalidate() routines are always called at 818 * splsoftcam, we need to be at splbio() here to keep the buffer 819 * queue from being modified while we traverse it. 820 */ 821 s = splbio(); 822 823 /* 824 * Return all queued I/O with ENXIO. 825 * XXX Handle any transactions queued to the card 826 * with XPT_ABORT_CCB. 827 */ 828 bioq_flush(&softc->bio_queue, NULL, ENXIO); 829 splx(s); 830 831 SLIST_REMOVE(&softc_list, softc, da_softc, links); 832 833 xpt_print_path(periph->path); 834 printf("lost device\n"); 835 } 836 837 static void 838 dacleanup(struct cam_periph *periph) 839 { 840 struct da_softc *softc; 841 842 softc = (struct da_softc *)periph->softc; 843 844 xpt_print_path(periph->path); 845 printf("removing device entry\n"); 846 /* 847 * If we can't free the sysctl tree, oh well... 848 */ 849 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 850 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 851 xpt_print_path(periph->path); 852 printf("can't remove sysctl context\n"); 853 } 854 disk_destroy(&softc->disk); 855 free(softc, M_DEVBUF); 856 } 857 858 static void 859 daasync(void *callback_arg, u_int32_t code, 860 struct cam_path *path, void *arg) 861 { 862 struct cam_periph *periph; 863 864 periph = (struct cam_periph *)callback_arg; 865 switch (code) { 866 case AC_FOUND_DEVICE: 867 { 868 struct ccb_getdev *cgd; 869 cam_status status; 870 871 cgd = (struct ccb_getdev *)arg; 872 if (cgd == NULL) 873 break; 874 875 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 876 && SID_TYPE(&cgd->inq_data) != T_RBC 877 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 878 break; 879 880 /* 881 * Allocate a peripheral instance for 882 * this device and start the probe 883 * process. 884 */ 885 status = cam_periph_alloc(daregister, daoninvalidate, 886 dacleanup, dastart, 887 "da", CAM_PERIPH_BIO, 888 cgd->ccb_h.path, daasync, 889 AC_FOUND_DEVICE, cgd); 890 891 if (status != CAM_REQ_CMP 892 && status != CAM_REQ_INPROG) 893 printf("daasync: Unable to attach to new device " 894 "due to status 0x%x\n", status); 895 break; 896 } 897 case AC_SENT_BDR: 898 case AC_BUS_RESET: 899 { 900 struct da_softc *softc; 901 struct ccb_hdr *ccbh; 902 int s; 903 904 softc = (struct da_softc *)periph->softc; 905 s = splsoftcam(); 906 /* 907 * Don't fail on the expected unit attention 908 * that will occur. 909 */ 910 softc->flags |= DA_FLAG_RETRY_UA; 911 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 912 ccbh->ccb_state |= DA_CCB_RETRY_UA; 913 splx(s); 914 /* FALLTHROUGH*/ 915 } 916 default: 917 cam_periph_async(periph, code, path, arg); 918 break; 919 } 920 } 921 922 static void 923 dasysctlinit(void *context, int pending) 924 { 925 struct cam_periph *periph; 926 struct da_softc *softc; 927 char tmpstr[80], tmpstr2[80]; 928 929 periph = (struct cam_periph *)context; 930 softc = (struct da_softc *)periph->softc; 931 932 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 933 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 934 935 mtx_lock(&Giant); 936 sysctl_ctx_init(&softc->sysctl_ctx); 937 softc->flags |= DA_FLAG_SCTX_INIT; 938 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 939 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 940 CTLFLAG_RD, 0, tmpstr); 941 if (softc->sysctl_tree == NULL) { 942 printf("dasysctlinit: unable to allocate sysctl tree\n"); 943 return; 944 } 945 946 /* 947 * Now register the sysctl handler, so the user can the value on 948 * the fly. 949 */ 950 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 951 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 952 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 953 "Minimum CDB size"); 954 955 mtx_unlock(&Giant); 956 } 957 958 static int 959 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 960 { 961 int error, value; 962 963 value = *(int *)arg1; 964 965 error = sysctl_handle_int(oidp, &value, 0, req); 966 967 if ((error != 0) 968 || (req->newptr == NULL)) 969 return (error); 970 971 /* 972 * Acceptable values here are 6, 10, 12 or 16. 973 */ 974 if (value < 6) 975 value = 6; 976 else if ((value > 6) 977 && (value <= 10)) 978 value = 10; 979 else if ((value > 10) 980 && (value <= 12)) 981 value = 12; 982 else if (value > 12) 983 value = 16; 984 985 *(int *)arg1 = value; 986 987 return (0); 988 } 989 990 static cam_status 991 daregister(struct cam_periph *periph, void *arg) 992 { 993 int s; 994 struct da_softc *softc; 995 struct ccb_setasync csa; 996 struct ccb_pathinq cpi; 997 struct ccb_getdev *cgd; 998 char tmpstr[80]; 999 caddr_t match; 1000 1001 cgd = (struct ccb_getdev *)arg; 1002 if (periph == NULL) { 1003 printf("daregister: periph was NULL!!\n"); 1004 return(CAM_REQ_CMP_ERR); 1005 } 1006 1007 if (cgd == NULL) { 1008 printf("daregister: no getdev CCB, can't register device\n"); 1009 return(CAM_REQ_CMP_ERR); 1010 } 1011 1012 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1013 M_NOWAIT|M_ZERO); 1014 1015 if (softc == NULL) { 1016 printf("daregister: Unable to probe new device. " 1017 "Unable to allocate softc\n"); 1018 return(CAM_REQ_CMP_ERR); 1019 } 1020 1021 LIST_INIT(&softc->pending_ccbs); 1022 softc->state = DA_STATE_PROBE; 1023 bioq_init(&softc->bio_queue); 1024 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1025 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1026 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1027 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1028 1029 periph->softc = softc; 1030 1031 /* 1032 * See if this device has any quirks. 1033 */ 1034 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1035 (caddr_t)da_quirk_table, 1036 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1037 sizeof(*da_quirk_table), scsi_inquiry_match); 1038 1039 if (match != NULL) 1040 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1041 else 1042 softc->quirks = DA_Q_NONE; 1043 1044 /* Check if the SIM does not want 6 byte commands */ 1045 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1046 cpi.ccb_h.func_code = XPT_PATH_INQ; 1047 xpt_action((union ccb *)&cpi); 1048 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1049 softc->quirks |= DA_Q_NO_6_BYTE; 1050 1051 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1052 1053 /* 1054 * RBC devices don't have to support READ(6), only READ(10). 1055 */ 1056 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1057 softc->minimum_cmd_size = 10; 1058 else 1059 softc->minimum_cmd_size = 6; 1060 1061 /* 1062 * Load the user's default, if any. 1063 */ 1064 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1065 periph->unit_number); 1066 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1067 1068 /* 1069 * 6, 10, 12 and 16 are the currently permissible values. 1070 */ 1071 if (softc->minimum_cmd_size < 6) 1072 softc->minimum_cmd_size = 6; 1073 else if ((softc->minimum_cmd_size > 6) 1074 && (softc->minimum_cmd_size <= 10)) 1075 softc->minimum_cmd_size = 10; 1076 else if ((softc->minimum_cmd_size > 10) 1077 && (softc->minimum_cmd_size <= 12)) 1078 softc->minimum_cmd_size = 12; 1079 else if (softc->minimum_cmd_size > 12) 1080 softc->minimum_cmd_size = 16; 1081 1082 /* 1083 * Block our timeout handler while we 1084 * add this softc to the dev list. 1085 */ 1086 s = splsoftclock(); 1087 SLIST_INSERT_HEAD(&softc_list, softc, links); 1088 splx(s); 1089 1090 /* 1091 * Register this media as a disk 1092 */ 1093 1094 softc->disk.d_open = daopen; 1095 softc->disk.d_close = daclose; 1096 softc->disk.d_strategy = dastrategy; 1097 softc->disk.d_dump = dadump; 1098 softc->disk.d_name = "da"; 1099 softc->disk.d_drv1 = periph; 1100 softc->disk.d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1101 disk_create(periph->unit_number, &softc->disk, 0, NULL, NULL); 1102 1103 /* 1104 * Add async callbacks for bus reset and 1105 * bus device reset calls. I don't bother 1106 * checking if this fails as, in most cases, 1107 * the system will function just fine without 1108 * them and the only alternative would be to 1109 * not attach the device on failure. 1110 */ 1111 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1112 csa.ccb_h.func_code = XPT_SASYNC_CB; 1113 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1114 csa.callback = daasync; 1115 csa.callback_arg = periph; 1116 xpt_action((union ccb *)&csa); 1117 /* 1118 * Lock this peripheral until we are setup. 1119 * This first call can't block 1120 */ 1121 (void)cam_periph_lock(periph, PRIBIO); 1122 xpt_schedule(periph, /*priority*/5); 1123 1124 return(CAM_REQ_CMP); 1125 } 1126 1127 static void 1128 dastart(struct cam_periph *periph, union ccb *start_ccb) 1129 { 1130 struct da_softc *softc; 1131 1132 softc = (struct da_softc *)periph->softc; 1133 1134 1135 switch (softc->state) { 1136 case DA_STATE_NORMAL: 1137 { 1138 /* Pull a buffer from the queue and get going on it */ 1139 struct bio *bp; 1140 int s; 1141 1142 /* 1143 * See if there is a buf with work for us to do.. 1144 */ 1145 s = splbio(); 1146 bp = bioq_first(&softc->bio_queue); 1147 if (periph->immediate_priority <= periph->pinfo.priority) { 1148 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1149 ("queuing for immediate ccb\n")); 1150 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1151 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1152 periph_links.sle); 1153 periph->immediate_priority = CAM_PRIORITY_NONE; 1154 splx(s); 1155 wakeup(&periph->ccb_list); 1156 } else if (bp == NULL) { 1157 splx(s); 1158 xpt_release_ccb(start_ccb); 1159 } else { 1160 int oldspl; 1161 u_int8_t tag_code; 1162 1163 bioq_remove(&softc->bio_queue, bp); 1164 1165 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1166 softc->flags &= ~DA_FLAG_NEED_OTAG; 1167 softc->ordered_tag_count++; 1168 tag_code = MSG_ORDERED_Q_TAG; 1169 } else { 1170 tag_code = MSG_SIMPLE_Q_TAG; 1171 } 1172 scsi_read_write(&start_ccb->csio, 1173 /*retries*/da_retry_count, 1174 /*cbfcnp*/dadone, 1175 /*tag_action*/tag_code, 1176 /*read_op*/bp->bio_cmd == BIO_READ, 1177 /*byte2*/0, 1178 softc->minimum_cmd_size, 1179 /*lba*/bp->bio_pblkno, 1180 /*block_count*/bp->bio_bcount / 1181 softc->params.secsize, 1182 /*data_ptr*/ bp->bio_data, 1183 /*dxfer_len*/ bp->bio_bcount, 1184 /*sense_len*/SSD_FULL_SIZE, 1185 /*timeout*/da_default_timeout*1000); 1186 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1187 1188 /* 1189 * Block out any asyncronous callbacks 1190 * while we touch the pending ccb list. 1191 */ 1192 oldspl = splcam(); 1193 LIST_INSERT_HEAD(&softc->pending_ccbs, 1194 &start_ccb->ccb_h, periph_links.le); 1195 softc->outstanding_cmds++; 1196 splx(oldspl); 1197 1198 /* We expect a unit attention from this device */ 1199 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1200 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1201 softc->flags &= ~DA_FLAG_RETRY_UA; 1202 } 1203 1204 start_ccb->ccb_h.ccb_bp = bp; 1205 bp = bioq_first(&softc->bio_queue); 1206 splx(s); 1207 1208 xpt_action(start_ccb); 1209 } 1210 1211 if (bp != NULL) { 1212 /* Have more work to do, so ensure we stay scheduled */ 1213 xpt_schedule(periph, /* XXX priority */1); 1214 } 1215 break; 1216 } 1217 case DA_STATE_PROBE: 1218 { 1219 struct ccb_scsiio *csio; 1220 struct scsi_read_capacity_data *rcap; 1221 1222 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1223 M_TEMP, 1224 M_NOWAIT); 1225 if (rcap == NULL) { 1226 printf("dastart: Couldn't malloc read_capacity data\n"); 1227 /* da_free_periph??? */ 1228 break; 1229 } 1230 csio = &start_ccb->csio; 1231 scsi_read_capacity(csio, 1232 /*retries*/4, 1233 dadone, 1234 MSG_SIMPLE_Q_TAG, 1235 rcap, 1236 SSD_FULL_SIZE, 1237 /*timeout*/5000); 1238 start_ccb->ccb_h.ccb_bp = NULL; 1239 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1240 xpt_action(start_ccb); 1241 break; 1242 } 1243 case DA_STATE_PROBE2: 1244 { 1245 struct ccb_scsiio *csio; 1246 struct scsi_read_capacity_data_long *rcaplong; 1247 1248 rcaplong = (struct scsi_read_capacity_data_long *) 1249 malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT); 1250 if (rcaplong == NULL) { 1251 printf("dastart: Couldn't malloc read_capacity data\n"); 1252 /* da_free_periph??? */ 1253 break; 1254 } 1255 csio = &start_ccb->csio; 1256 scsi_read_capacity_16(csio, 1257 /*retries*/ 4, 1258 /*cbfcnp*/ dadone, 1259 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1260 /*lba*/ 0, 1261 /*reladr*/ 0, 1262 /*pmi*/ 0, 1263 rcaplong, 1264 /*sense_len*/ SSD_FULL_SIZE, 1265 /*timeout*/ 60000); 1266 start_ccb->ccb_h.ccb_bp = NULL; 1267 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1268 xpt_action(start_ccb); 1269 break; 1270 } 1271 } 1272 } 1273 1274 static int 1275 cmd6workaround(union ccb *ccb) 1276 { 1277 struct scsi_rw_6 cmd6; 1278 struct scsi_rw_10 *cmd10; 1279 struct da_softc *softc; 1280 u_int8_t *cdb; 1281 int frozen; 1282 1283 cdb = ccb->csio.cdb_io.cdb_bytes; 1284 1285 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1286 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1287 (*cdb != READ_6 && *cdb != WRITE_6)) 1288 return 0; 1289 1290 xpt_print_path(ccb->ccb_h.path); 1291 printf("READ(6)/WRITE(6) not supported, " 1292 "increasing minimum_cmd_size to 10.\n"); 1293 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1294 softc->minimum_cmd_size = 10; 1295 1296 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1297 cmd10 = (struct scsi_rw_10 *)cdb; 1298 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1299 cmd10->byte2 = 0; 1300 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1301 cmd10->reserved = 0; 1302 scsi_ulto2b(cmd6.length, cmd10->length); 1303 cmd10->control = cmd6.control; 1304 ccb->csio.cdb_len = sizeof(*cmd10); 1305 1306 /* Requeue request, unfreezing queue if necessary */ 1307 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1308 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1309 xpt_action(ccb); 1310 if (frozen) { 1311 cam_release_devq(ccb->ccb_h.path, 1312 /*relsim_flags*/0, 1313 /*reduction*/0, 1314 /*timeout*/0, 1315 /*getcount_only*/0); 1316 } 1317 return (ERESTART); 1318 } 1319 1320 static void 1321 dadone(struct cam_periph *periph, union ccb *done_ccb) 1322 { 1323 struct da_softc *softc; 1324 struct ccb_scsiio *csio; 1325 1326 softc = (struct da_softc *)periph->softc; 1327 csio = &done_ccb->csio; 1328 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1329 case DA_CCB_BUFFER_IO: 1330 { 1331 struct bio *bp; 1332 int oldspl; 1333 1334 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1335 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1336 int error; 1337 int s; 1338 int sf; 1339 1340 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1341 sf = SF_RETRY_UA; 1342 else 1343 sf = 0; 1344 1345 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1346 if (error == ERESTART) { 1347 /* 1348 * A retry was scheuled, so 1349 * just return. 1350 */ 1351 return; 1352 } 1353 if (error != 0) { 1354 1355 s = splbio(); 1356 1357 if (error == ENXIO) { 1358 /* 1359 * Catastrophic error. Mark our pack as 1360 * invalid. 1361 */ 1362 /* XXX See if this is really a media 1363 * change first. 1364 */ 1365 xpt_print_path(periph->path); 1366 printf("Invalidating pack\n"); 1367 softc->flags |= DA_FLAG_PACK_INVALID; 1368 } 1369 1370 /* 1371 * return all queued I/O with EIO, so that 1372 * the client can retry these I/Os in the 1373 * proper order should it attempt to recover. 1374 */ 1375 bioq_flush(&softc->bio_queue, NULL, EIO); 1376 splx(s); 1377 bp->bio_error = error; 1378 bp->bio_resid = bp->bio_bcount; 1379 bp->bio_flags |= BIO_ERROR; 1380 } else { 1381 bp->bio_resid = csio->resid; 1382 bp->bio_error = 0; 1383 if (bp->bio_resid != 0) 1384 bp->bio_flags |= BIO_ERROR; 1385 } 1386 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1387 cam_release_devq(done_ccb->ccb_h.path, 1388 /*relsim_flags*/0, 1389 /*reduction*/0, 1390 /*timeout*/0, 1391 /*getcount_only*/0); 1392 } else { 1393 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1394 panic("REQ_CMP with QFRZN"); 1395 bp->bio_resid = csio->resid; 1396 if (csio->resid > 0) 1397 bp->bio_flags |= BIO_ERROR; 1398 } 1399 1400 /* 1401 * Block out any asyncronous callbacks 1402 * while we touch the pending ccb list. 1403 */ 1404 oldspl = splcam(); 1405 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1406 softc->outstanding_cmds--; 1407 if (softc->outstanding_cmds == 0) 1408 softc->flags |= DA_FLAG_WENT_IDLE; 1409 splx(oldspl); 1410 1411 biodone(bp); 1412 break; 1413 } 1414 case DA_CCB_PROBE: 1415 case DA_CCB_PROBE2: 1416 { 1417 struct scsi_read_capacity_data *rdcap; 1418 struct scsi_read_capacity_data_long *rcaplong; 1419 char announce_buf[80]; 1420 1421 rdcap = NULL; 1422 rcaplong = NULL; 1423 if (softc->state == DA_STATE_PROBE) 1424 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1425 else 1426 rcaplong = (struct scsi_read_capacity_data_long *) 1427 csio->data_ptr; 1428 1429 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1430 struct disk_params *dp; 1431 uint32_t block_size; 1432 uint64_t maxsector; 1433 1434 if (softc->state == DA_STATE_PROBE) { 1435 block_size = scsi_4btoul(rdcap->length); 1436 maxsector = scsi_4btoul(rdcap->addr); 1437 1438 /* 1439 * According to SBC-2, if the standard 10 1440 * byte READ CAPACITY command returns 2^32, 1441 * we should issue the 16 byte version of 1442 * the command, since the device in question 1443 * has more sectors than can be represented 1444 * with the short version of the command. 1445 */ 1446 if (maxsector == 0xffffffff) { 1447 softc->state = DA_STATE_PROBE2; 1448 free(rdcap, M_TEMP); 1449 xpt_release_ccb(done_ccb); 1450 xpt_schedule(periph, /*priority*/5); 1451 return; 1452 } 1453 } else { 1454 block_size = scsi_4btoul(rcaplong->length); 1455 maxsector = scsi_8btou64(rcaplong->addr); 1456 } 1457 dasetgeom(periph, block_size, maxsector); 1458 dp = &softc->params; 1459 snprintf(announce_buf, sizeof(announce_buf), 1460 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1461 (uintmax_t) (((uintmax_t)dp->secsize * 1462 dp->sectors) / (1024*1024)), 1463 (uintmax_t)dp->sectors, 1464 dp->secsize, dp->heads, dp->secs_per_track, 1465 dp->cylinders); 1466 } else { 1467 int error; 1468 1469 announce_buf[0] = '\0'; 1470 1471 /* 1472 * Retry any UNIT ATTENTION type errors. They 1473 * are expected at boot. 1474 */ 1475 error = daerror(done_ccb, CAM_RETRY_SELTO, 1476 SF_RETRY_UA|SF_NO_PRINT); 1477 if (error == ERESTART) { 1478 /* 1479 * A retry was scheuled, so 1480 * just return. 1481 */ 1482 return; 1483 } else if (error != 0) { 1484 struct scsi_sense_data *sense; 1485 int asc, ascq; 1486 int sense_key, error_code; 1487 int have_sense; 1488 cam_status status; 1489 struct ccb_getdev cgd; 1490 1491 /* Don't wedge this device's queue */ 1492 status = done_ccb->ccb_h.status; 1493 if ((status & CAM_DEV_QFRZN) != 0) 1494 cam_release_devq(done_ccb->ccb_h.path, 1495 /*relsim_flags*/0, 1496 /*reduction*/0, 1497 /*timeout*/0, 1498 /*getcount_only*/0); 1499 1500 1501 xpt_setup_ccb(&cgd.ccb_h, 1502 done_ccb->ccb_h.path, 1503 /* priority */ 1); 1504 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1505 xpt_action((union ccb *)&cgd); 1506 1507 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1508 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1509 || ((status & CAM_AUTOSNS_VALID) == 0)) 1510 have_sense = FALSE; 1511 else 1512 have_sense = TRUE; 1513 1514 if (have_sense) { 1515 sense = &csio->sense_data; 1516 scsi_extract_sense(sense, &error_code, 1517 &sense_key, 1518 &asc, &ascq); 1519 } 1520 /* 1521 * Attach to anything that claims to be a 1522 * direct access or optical disk device, 1523 * as long as it doesn't return a "Logical 1524 * unit not supported" (0x25) error. 1525 */ 1526 if ((have_sense) && (asc != 0x25) 1527 && (error_code == SSD_CURRENT_ERROR)) { 1528 const char *sense_key_desc; 1529 const char *asc_desc; 1530 1531 scsi_sense_desc(sense_key, asc, ascq, 1532 &cgd.inq_data, 1533 &sense_key_desc, 1534 &asc_desc); 1535 snprintf(announce_buf, 1536 sizeof(announce_buf), 1537 "Attempt to query device " 1538 "size failed: %s, %s", 1539 sense_key_desc, 1540 asc_desc); 1541 } else { 1542 if (have_sense) 1543 scsi_sense_print( 1544 &done_ccb->csio); 1545 else { 1546 xpt_print_path(periph->path); 1547 printf("got CAM status %#x\n", 1548 done_ccb->ccb_h.status); 1549 } 1550 1551 xpt_print_path(periph->path); 1552 printf("fatal error, failed" 1553 " to attach to device\n"); 1554 1555 /* 1556 * Free up resources. 1557 */ 1558 cam_periph_invalidate(periph); 1559 } 1560 } 1561 } 1562 free(csio->data_ptr, M_TEMP); 1563 if (announce_buf[0] != '\0') { 1564 xpt_announce_periph(periph, announce_buf); 1565 /* 1566 * Create our sysctl variables, now that we know 1567 * we have successfully attached. 1568 */ 1569 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1570 } 1571 softc->state = DA_STATE_NORMAL; 1572 /* 1573 * Since our peripheral may be invalidated by an error 1574 * above or an external event, we must release our CCB 1575 * before releasing the probe lock on the peripheral. 1576 * The peripheral will only go away once the last lock 1577 * is removed, and we need it around for the CCB release 1578 * operation. 1579 */ 1580 xpt_release_ccb(done_ccb); 1581 cam_periph_unlock(periph); 1582 return; 1583 } 1584 case DA_CCB_WAITING: 1585 { 1586 /* Caller will release the CCB */ 1587 wakeup(&done_ccb->ccb_h.cbfcnp); 1588 return; 1589 } 1590 case DA_CCB_DUMP: 1591 /* No-op. We're polling */ 1592 return; 1593 default: 1594 break; 1595 } 1596 xpt_release_ccb(done_ccb); 1597 } 1598 1599 static int 1600 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1601 { 1602 struct da_softc *softc; 1603 struct cam_periph *periph; 1604 int error; 1605 1606 periph = xpt_path_periph(ccb->ccb_h.path); 1607 softc = (struct da_softc *)periph->softc; 1608 1609 /* 1610 * Automatically detect devices that do not support 1611 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1612 */ 1613 error = 0; 1614 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1615 error = cmd6workaround(ccb); 1616 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1617 CAM_SCSI_STATUS_ERROR) 1618 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1619 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1620 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1621 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1622 int sense_key, error_code, asc, ascq; 1623 1624 scsi_extract_sense(&ccb->csio.sense_data, 1625 &error_code, &sense_key, &asc, &ascq); 1626 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1627 error = cmd6workaround(ccb); 1628 } 1629 if (error == ERESTART) 1630 return (ERESTART); 1631 1632 /* 1633 * XXX 1634 * Until we have a better way of doing pack validation, 1635 * don't treat UAs as errors. 1636 */ 1637 sense_flags |= SF_RETRY_UA; 1638 return(cam_periph_error(ccb, cam_flags, sense_flags, 1639 &softc->saved_ccb)); 1640 } 1641 1642 static void 1643 daprevent(struct cam_periph *periph, int action) 1644 { 1645 struct da_softc *softc; 1646 union ccb *ccb; 1647 int error; 1648 1649 softc = (struct da_softc *)periph->softc; 1650 1651 if (((action == PR_ALLOW) 1652 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1653 || ((action == PR_PREVENT) 1654 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1655 return; 1656 } 1657 1658 ccb = cam_periph_getccb(periph, /*priority*/1); 1659 1660 scsi_prevent(&ccb->csio, 1661 /*retries*/1, 1662 /*cbcfp*/dadone, 1663 MSG_SIMPLE_Q_TAG, 1664 action, 1665 SSD_FULL_SIZE, 1666 5000); 1667 1668 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1669 SF_RETRY_UA, softc->disk.d_devstat); 1670 1671 if (error == 0) { 1672 if (action == PR_ALLOW) 1673 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1674 else 1675 softc->flags |= DA_FLAG_PACK_LOCKED; 1676 } 1677 1678 xpt_release_ccb(ccb); 1679 } 1680 1681 static int 1682 dagetcapacity(struct cam_periph *periph) 1683 { 1684 struct da_softc *softc; 1685 union ccb *ccb; 1686 struct scsi_read_capacity_data *rcap; 1687 struct scsi_read_capacity_data_long *rcaplong; 1688 uint32_t block_len; 1689 uint64_t maxsector; 1690 int error; 1691 1692 softc = (struct da_softc *)periph->softc; 1693 block_len = 0; 1694 maxsector = 0; 1695 error = 0; 1696 1697 /* Do a read capacity */ 1698 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1699 M_TEMP, 1700 M_WAITOK); 1701 1702 ccb = cam_periph_getccb(periph, /*priority*/1); 1703 scsi_read_capacity(&ccb->csio, 1704 /*retries*/4, 1705 /*cbfncp*/dadone, 1706 MSG_SIMPLE_Q_TAG, 1707 rcap, 1708 SSD_FULL_SIZE, 1709 /*timeout*/60000); 1710 ccb->ccb_h.ccb_bp = NULL; 1711 1712 error = cam_periph_runccb(ccb, daerror, 1713 /*cam_flags*/CAM_RETRY_SELTO, 1714 /*sense_flags*/SF_RETRY_UA, 1715 softc->disk.d_devstat); 1716 1717 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1718 cam_release_devq(ccb->ccb_h.path, 1719 /*relsim_flags*/0, 1720 /*reduction*/0, 1721 /*timeout*/0, 1722 /*getcount_only*/0); 1723 1724 if (error == 0) { 1725 block_len = scsi_4btoul(rcap->length); 1726 maxsector = scsi_4btoul(rcap->addr); 1727 1728 if (maxsector != 0xffffffff) 1729 goto done; 1730 } else 1731 goto done; 1732 1733 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1734 1735 scsi_read_capacity_16(&ccb->csio, 1736 /*retries*/ 4, 1737 /*cbfcnp*/ dadone, 1738 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1739 /*lba*/ 0, 1740 /*reladr*/ 0, 1741 /*pmi*/ 0, 1742 rcaplong, 1743 /*sense_len*/ SSD_FULL_SIZE, 1744 /*timeout*/ 60000); 1745 ccb->ccb_h.ccb_bp = NULL; 1746 1747 error = cam_periph_runccb(ccb, daerror, 1748 /*cam_flags*/CAM_RETRY_SELTO, 1749 /*sense_flags*/SF_RETRY_UA, 1750 softc->disk.d_devstat); 1751 1752 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1753 cam_release_devq(ccb->ccb_h.path, 1754 /*relsim_flags*/0, 1755 /*reduction*/0, 1756 /*timeout*/0, 1757 /*getcount_only*/0); 1758 1759 if (error == 0) { 1760 block_len = scsi_4btoul(rcaplong->length); 1761 maxsector = scsi_8btou64(rcaplong->addr); 1762 } 1763 1764 done: 1765 1766 if (error == 0) 1767 dasetgeom(periph, block_len, maxsector); 1768 1769 xpt_release_ccb(ccb); 1770 1771 free(rcap, M_TEMP); 1772 1773 return (error); 1774 } 1775 1776 static void 1777 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1778 { 1779 struct ccb_calc_geometry ccg; 1780 struct da_softc *softc; 1781 struct disk_params *dp; 1782 1783 softc = (struct da_softc *)periph->softc; 1784 1785 dp = &softc->params; 1786 dp->secsize = block_len; 1787 dp->sectors = maxsector + 1; 1788 /* 1789 * Have the controller provide us with a geometry 1790 * for this disk. The only time the geometry 1791 * matters is when we boot and the controller 1792 * is the only one knowledgeable enough to come 1793 * up with something that will make this a bootable 1794 * device. 1795 */ 1796 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1797 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1798 ccg.block_size = dp->secsize; 1799 ccg.volume_size = dp->sectors; 1800 ccg.heads = 0; 1801 ccg.secs_per_track = 0; 1802 ccg.cylinders = 0; 1803 xpt_action((union ccb*)&ccg); 1804 dp->heads = ccg.heads; 1805 dp->secs_per_track = ccg.secs_per_track; 1806 dp->cylinders = ccg.cylinders; 1807 } 1808 1809 static void 1810 dasendorderedtag(void *arg) 1811 { 1812 struct da_softc *softc; 1813 int s; 1814 1815 for (softc = SLIST_FIRST(&softc_list); 1816 softc != NULL; 1817 softc = SLIST_NEXT(softc, links)) { 1818 s = splsoftcam(); 1819 if ((softc->ordered_tag_count == 0) 1820 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1821 softc->flags |= DA_FLAG_NEED_OTAG; 1822 } 1823 if (softc->outstanding_cmds > 0) 1824 softc->flags &= ~DA_FLAG_WENT_IDLE; 1825 1826 softc->ordered_tag_count = 0; 1827 splx(s); 1828 } 1829 /* Queue us up again */ 1830 timeout(dasendorderedtag, NULL, 1831 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1832 } 1833 1834 /* 1835 * Step through all DA peripheral drivers, and if the device is still open, 1836 * sync the disk cache to physical media. 1837 */ 1838 static void 1839 dashutdown(void * arg, int howto) 1840 { 1841 struct cam_periph *periph; 1842 struct da_softc *softc; 1843 1844 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1845 union ccb ccb; 1846 softc = (struct da_softc *)periph->softc; 1847 1848 /* 1849 * We only sync the cache if the drive is still open, and 1850 * if the drive is capable of it.. 1851 */ 1852 if (((softc->flags & DA_FLAG_OPEN) == 0) 1853 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1854 continue; 1855 1856 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1857 1858 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1859 scsi_synchronize_cache(&ccb.csio, 1860 /*retries*/1, 1861 /*cbfcnp*/dadone, 1862 MSG_SIMPLE_Q_TAG, 1863 /*begin_lba*/0, /* whole disk */ 1864 /*lb_count*/0, 1865 SSD_FULL_SIZE, 1866 60 * 60 * 1000); 1867 1868 xpt_polled_action(&ccb); 1869 1870 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1871 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1872 CAM_SCSI_STATUS_ERROR) 1873 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1874 int error_code, sense_key, asc, ascq; 1875 1876 scsi_extract_sense(&ccb.csio.sense_data, 1877 &error_code, &sense_key, 1878 &asc, &ascq); 1879 1880 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1881 scsi_sense_print(&ccb.csio); 1882 } else { 1883 xpt_print_path(periph->path); 1884 printf("Synchronize cache failed, status " 1885 "== 0x%x, scsi status == 0x%x\n", 1886 ccb.ccb_h.status, ccb.csio.scsi_status); 1887 } 1888 } 1889 1890 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1891 cam_release_devq(ccb.ccb_h.path, 1892 /*relsim_flags*/0, 1893 /*reduction*/0, 1894 /*timeout*/0, 1895 /*getcount_only*/0); 1896 1897 } 1898 } 1899 1900 #else /* !_KERNEL */ 1901 1902 /* 1903 * XXX This is only left out of the kernel build to silence warnings. If, 1904 * for some reason this function is used in the kernel, the ifdefs should 1905 * be moved so it is included both in the kernel and userland. 1906 */ 1907 void 1908 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1909 void (*cbfcnp)(struct cam_periph *, union ccb *), 1910 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1911 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1912 u_int32_t timeout) 1913 { 1914 struct scsi_format_unit *scsi_cmd; 1915 1916 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1917 scsi_cmd->opcode = FORMAT_UNIT; 1918 scsi_cmd->byte2 = byte2; 1919 scsi_ulto2b(ileave, scsi_cmd->interleave); 1920 1921 cam_fill_csio(csio, 1922 retries, 1923 cbfcnp, 1924 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1925 tag_action, 1926 data_ptr, 1927 dxfer_len, 1928 sense_len, 1929 sizeof(*scsi_cmd), 1930 timeout); 1931 } 1932 1933 #endif /* _KERNEL */ 1934