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sys/cam/scsi/scsi_da.c
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1 /*- 2 * Implementation of SCSI Direct Access Peripheral driver for CAM. 3 * 4 * Copyright (c) 1997 Justin T. Gibbs. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions, and the following disclaimer, 12 * without modification, immediately at the beginning of the file. 13 * 2. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD: releng/6.3/sys/cam/scsi/scsi_da.c 169996 2007-05-25 20:14:02Z mjacob $"); 31 32 #include <sys/param.h> 33 34 #ifdef _KERNEL 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/bio.h> 38 #include <sys/sysctl.h> 39 #include <sys/taskqueue.h> 40 #endif /* _KERNEL */ 41 42 #include <sys/devicestat.h> 43 #include <sys/conf.h> 44 #include <sys/eventhandler.h> 45 #include <sys/malloc.h> 46 #include <sys/cons.h> 47 48 #include <machine/md_var.h> 49 50 #include <vm/vm.h> 51 #include <vm/pmap.h> 52 53 #include <geom/geom_disk.h> 54 55 #ifndef _KERNEL 56 #include <stdio.h> 57 #include <string.h> 58 #endif /* _KERNEL */ 59 60 #include <cam/cam.h> 61 #include <cam/cam_ccb.h> 62 #include <cam/cam_periph.h> 63 #include <cam/cam_xpt_periph.h> 64 65 #include <cam/scsi/scsi_message.h> 66 67 #ifndef _KERNEL 68 #include <cam/scsi/scsi_da.h> 69 #endif /* !_KERNEL */ 70 71 #ifdef _KERNEL 72 typedef enum { 73 DA_STATE_PROBE, 74 DA_STATE_PROBE2, 75 DA_STATE_NORMAL 76 } da_state; 77 78 typedef enum { 79 DA_FLAG_PACK_INVALID = 0x001, 80 DA_FLAG_NEW_PACK = 0x002, 81 DA_FLAG_PACK_LOCKED = 0x004, 82 DA_FLAG_PACK_REMOVABLE = 0x008, 83 DA_FLAG_TAGGED_QUEUING = 0x010, 84 DA_FLAG_NEED_OTAG = 0x020, 85 DA_FLAG_WENT_IDLE = 0x040, 86 DA_FLAG_RETRY_UA = 0x080, 87 DA_FLAG_OPEN = 0x100, 88 DA_FLAG_SCTX_INIT = 0x200 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_Q_NO_PREVENT = 0x04 96 } da_quirks; 97 98 typedef enum { 99 DA_CCB_PROBE = 0x01, 100 DA_CCB_PROBE2 = 0x02, 101 DA_CCB_BUFFER_IO = 0x03, 102 DA_CCB_WAITING = 0x04, 103 DA_CCB_DUMP = 0x05, 104 DA_CCB_TYPE_MASK = 0x0F, 105 DA_CCB_RETRY_UA = 0x10 106 } da_ccb_state; 107 108 /* Offsets into our private area for storing information */ 109 #define ccb_state ppriv_field0 110 #define ccb_bp ppriv_ptr1 111 112 struct disk_params { 113 u_int8_t heads; 114 u_int32_t cylinders; 115 u_int8_t secs_per_track; 116 u_int32_t secsize; /* Number of bytes/sector */ 117 u_int64_t sectors; /* total number sectors */ 118 }; 119 120 struct da_softc { 121 struct bio_queue_head bio_queue; 122 SLIST_ENTRY(da_softc) links; 123 LIST_HEAD(, ccb_hdr) pending_ccbs; 124 da_state state; 125 da_flags flags; 126 da_quirks quirks; 127 int minimum_cmd_size; 128 int ordered_tag_count; 129 int outstanding_cmds; 130 struct disk_params params; 131 struct disk *disk; 132 union ccb saved_ccb; 133 struct task sysctl_task; 134 struct sysctl_ctx_list sysctl_ctx; 135 struct sysctl_oid *sysctl_tree; 136 }; 137 138 struct da_quirk_entry { 139 struct scsi_inquiry_pattern inq_pat; 140 da_quirks quirks; 141 }; 142 143 static const char quantum[] = "QUANTUM"; 144 static const char microp[] = "MICROP"; 145 146 static struct da_quirk_entry da_quirk_table[] = 147 { 148 /* SPI, FC devices */ 149 { 150 /* 151 * Fujitsu M2513A MO drives. 152 * Tested devices: M2513A2 firmware versions 1200 & 1300. 153 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 154 * Reported by: W.Scholten <whs@xs4all.nl> 155 */ 156 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 157 /*quirks*/ DA_Q_NO_SYNC_CACHE 158 }, 159 { 160 /* See above. */ 161 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 162 /*quirks*/ DA_Q_NO_SYNC_CACHE 163 }, 164 { 165 /* 166 * This particular Fujitsu drive doesn't like the 167 * synchronize cache command. 168 * Reported by: Tom Jackson <toj@gorilla.net> 169 */ 170 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 171 /*quirks*/ DA_Q_NO_SYNC_CACHE 172 173 }, 174 { 175 /* 176 * This drive doesn't like the synchronize cache command 177 * either. Reported by: Matthew Jacob <mjacob@feral.com> 178 * in NetBSD PR kern/6027, August 24, 1998. 179 */ 180 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 181 /*quirks*/ DA_Q_NO_SYNC_CACHE 182 }, 183 { 184 /* 185 * This drive doesn't like the synchronize cache command 186 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 187 * (PR 8882). 188 */ 189 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 190 /*quirks*/ DA_Q_NO_SYNC_CACHE 191 }, 192 { 193 /* 194 * Doesn't like the synchronize cache command. 195 * Reported by: Blaz Zupan <blaz@gold.amis.net> 196 */ 197 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 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, quantum, "MAVERICK 540S", "*"}, 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, "LPS525S", "*"}, 213 /*quirks*/ DA_Q_NO_SYNC_CACHE 214 }, 215 { 216 /* 217 * Doesn't like the synchronize cache command. 218 * Reported by: walter@pelissero.de 219 */ 220 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 221 /*quirks*/ DA_Q_NO_SYNC_CACHE 222 }, 223 { 224 /* 225 * Doesn't work correctly with 6 byte reads/writes. 226 * Returns illegal request, and points to byte 9 of the 227 * 6-byte CDB. 228 * Reported by: Adam McDougall <bsdx@spawnet.com> 229 */ 230 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 231 /*quirks*/ DA_Q_NO_6_BYTE 232 }, 233 { 234 /* See above. */ 235 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 236 /*quirks*/ DA_Q_NO_6_BYTE 237 }, 238 { 239 /* 240 * Doesn't like the synchronize cache command. 241 * Reported by: walter@pelissero.de 242 */ 243 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 244 /*quirks*/ DA_Q_NO_SYNC_CACHE 245 }, 246 { 247 /* 248 * The CISS RAID controllers do not support SYNC_CACHE 249 */ 250 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 251 /*quirks*/ DA_Q_NO_SYNC_CACHE 252 }, 253 /* USB mass storage devices supported by umass(4) */ 254 { 255 /* 256 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 257 * PR: kern/51675 258 */ 259 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 260 /*quirks*/ DA_Q_NO_SYNC_CACHE 261 }, 262 { 263 /* 264 * Power Quotient Int. (PQI) USB flash key 265 * PR: kern/53067 266 */ 267 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 268 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 269 }, 270 { 271 /* 272 * Creative Nomad MUVO mp3 player (USB) 273 * PR: kern/53094 274 */ 275 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 276 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 277 }, 278 { 279 /* 280 * Jungsoft NEXDISK USB flash key 281 * PR: kern/54737 282 */ 283 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 284 /*quirks*/ DA_Q_NO_SYNC_CACHE 285 }, 286 { 287 /* 288 * FreeDik USB Mini Data Drive 289 * PR: kern/54786 290 */ 291 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 292 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 293 }, 294 { 295 /* 296 * Sigmatel USB Flash MP3 Player 297 * PR: kern/57046 298 */ 299 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 300 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 301 }, 302 { 303 /* 304 * Neuros USB Digital Audio Computer 305 * PR: kern/63645 306 */ 307 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 308 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 309 }, 310 { 311 /* 312 * SEAGRAND NP-900 MP3 Player 313 * PR: kern/64563 314 */ 315 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 316 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 317 }, 318 { 319 /* 320 * iRiver iFP MP3 player (with UMS Firmware) 321 * PR: kern/54881, i386/63941, kern/66124 322 */ 323 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 324 /*quirks*/ DA_Q_NO_SYNC_CACHE 325 }, 326 { 327 /* 328 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 329 * PR: kern/70158 330 */ 331 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 332 /*quirks*/ DA_Q_NO_SYNC_CACHE 333 }, 334 { 335 /* 336 * ZICPlay USB MP3 Player with FM 337 * PR: kern/75057 338 */ 339 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 340 /*quirks*/ DA_Q_NO_SYNC_CACHE 341 }, 342 { 343 /* 344 * TEAC USB floppy mechanisms 345 */ 346 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 347 /*quirks*/ DA_Q_NO_SYNC_CACHE 348 }, 349 { 350 /* 351 * Kingston DataTraveler II+ USB Pen-Drive. 352 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 353 */ 354 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", "*"}, 355 /*quirks*/ DA_Q_NO_SYNC_CACHE 356 }, 357 { 358 /* 359 * Motorola E398 Mobile Phone (TransFlash memory card). 360 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 361 * PR: usb/89889 362 */ 363 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 364 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 365 }, 366 { 367 /* 368 * Qware BeatZkey! Pro 369 * PR: usb/79164 370 */ 371 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 372 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 373 }, 374 { 375 /* 376 * Time DPA20B 1GB MP3 Player 377 * PR: usb/81846 378 */ 379 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 380 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 381 }, 382 { 383 /* 384 * Samsung USB key 128Mb 385 * PR: usb/90081 386 */ 387 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 388 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 389 }, 390 { 391 /* 392 * Kingston DataTraveler 2.0 USB Flash memory. 393 * PR: usb/89196 394 */ 395 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 396 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 397 }, 398 { 399 /* 400 * Creative MUVO Slim mp3 player (USB) 401 * PR: usb/86131 402 */ 403 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 404 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 405 }, 406 { 407 /* 408 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 409 * PR: usb/80487 410 */ 411 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 412 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 413 }, 414 { 415 /* 416 * SanDisk Micro Cruzer 128MB 417 * PR: usb/75970 418 */ 419 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 420 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 421 }, 422 { 423 /* 424 * TOSHIBA TransMemory USB sticks 425 * PR: kern/94660 426 */ 427 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 428 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 429 }, 430 { 431 /* 432 * PNY USB Flash keys 433 * PR: usb/75578, usb/72344, usb/65436 434 */ 435 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 436 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 437 }, 438 { 439 /* 440 * Genesys 6-in-1 Card Reader 441 * PR: usb/94647 442 */ 443 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 444 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 445 }, 446 { 447 /* 448 * Rekam Digital CAMERA 449 * PR: usb/98713 450 */ 451 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 452 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 453 }, 454 { 455 /* 456 * iRiver H10 MP3 player 457 * PR: usb/102547 458 */ 459 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 460 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 461 }, 462 { 463 /* 464 * X-Micro Flash Disk 465 * PR: usb/96901 466 */ 467 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro" , "Flash Disk", 468 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 469 }, 470 { 471 /* 472 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 473 * PR: usb/96546 474 */ 475 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 476 "1.0"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 477 }, 478 }; 479 480 static disk_strategy_t dastrategy; 481 static dumper_t dadump; 482 static periph_init_t dainit; 483 static void daasync(void *callback_arg, u_int32_t code, 484 struct cam_path *path, void *arg); 485 static void dasysctlinit(void *context, int pending); 486 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 487 static periph_ctor_t daregister; 488 static periph_dtor_t dacleanup; 489 static periph_start_t dastart; 490 static periph_oninv_t daoninvalidate; 491 static void dadone(struct cam_periph *periph, 492 union ccb *done_ccb); 493 static int daerror(union ccb *ccb, u_int32_t cam_flags, 494 u_int32_t sense_flags); 495 static void daprevent(struct cam_periph *periph, int action); 496 static int dagetcapacity(struct cam_periph *periph); 497 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 498 uint64_t maxsector); 499 static timeout_t dasendorderedtag; 500 static void dashutdown(void *arg, int howto); 501 502 #ifndef DA_DEFAULT_TIMEOUT 503 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 504 #endif 505 506 #ifndef DA_DEFAULT_RETRY 507 #define DA_DEFAULT_RETRY 4 508 #endif 509 510 #ifndef DA_DEFAULT_SEND_ORDERED 511 #define DA_DEFAULT_SEND_ORDERED 1 512 #endif 513 514 515 static int da_retry_count = DA_DEFAULT_RETRY; 516 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 517 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 518 519 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 520 "CAM Direct Access Disk driver"); 521 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 522 &da_retry_count, 0, "Normal I/O retry count"); 523 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 524 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 525 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 526 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 527 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 528 &da_send_ordered, 0, "Send Ordered Tags"); 529 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 530 531 /* 532 * DA_ORDEREDTAG_INTERVAL determines how often, relative 533 * to the default timeout, we check to see whether an ordered 534 * tagged transaction is appropriate to prevent simple tag 535 * starvation. Since we'd like to ensure that there is at least 536 * 1/2 of the timeout length left for a starved transaction to 537 * complete after we've sent an ordered tag, we must poll at least 538 * four times in every timeout period. This takes care of the worst 539 * case where a starved transaction starts during an interval that 540 * meets the requirement "don't send an ordered tag" test so it takes 541 * us two intervals to determine that a tag must be sent. 542 */ 543 #ifndef DA_ORDEREDTAG_INTERVAL 544 #define DA_ORDEREDTAG_INTERVAL 4 545 #endif 546 547 static struct periph_driver dadriver = 548 { 549 dainit, "da", 550 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 551 }; 552 553 PERIPHDRIVER_DECLARE(da, dadriver); 554 555 static SLIST_HEAD(,da_softc) softc_list; 556 557 static int 558 daopen(struct disk *dp) 559 { 560 struct cam_periph *periph; 561 struct da_softc *softc; 562 int unit; 563 int error; 564 int s; 565 566 s = splsoftcam(); 567 periph = (struct cam_periph *)dp->d_drv1; 568 if (periph == NULL) { 569 splx(s); 570 return (ENXIO); 571 } 572 unit = periph->unit_number; 573 574 softc = (struct da_softc *)periph->softc; 575 576 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 577 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 578 unit)); 579 580 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 581 return (error); /* error code from tsleep */ 582 583 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 584 return(ENXIO); 585 softc->flags |= DA_FLAG_OPEN; 586 587 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 588 /* Invalidate our pack information. */ 589 softc->flags &= ~DA_FLAG_PACK_INVALID; 590 } 591 splx(s); 592 593 error = dagetcapacity(periph); 594 595 if (error == 0) { 596 597 softc->disk->d_sectorsize = softc->params.secsize; 598 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 599 /* XXX: these are not actually "firmware" values, so they may be wrong */ 600 softc->disk->d_fwsectors = softc->params.secs_per_track; 601 softc->disk->d_fwheads = softc->params.heads; 602 softc->disk->d_devstat->block_size = softc->params.secsize; 603 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 604 } 605 606 if (error == 0) { 607 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 608 (softc->quirks & DA_Q_NO_PREVENT) == 0) 609 daprevent(periph, PR_PREVENT); 610 } else { 611 softc->flags &= ~DA_FLAG_OPEN; 612 cam_periph_release(periph); 613 } 614 cam_periph_unlock(periph); 615 return (error); 616 } 617 618 static int 619 daclose(struct disk *dp) 620 { 621 struct cam_periph *periph; 622 struct da_softc *softc; 623 int error; 624 625 periph = (struct cam_periph *)dp->d_drv1; 626 if (periph == NULL) 627 return (ENXIO); 628 629 softc = (struct da_softc *)periph->softc; 630 631 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 632 return (error); /* error code from tsleep */ 633 } 634 635 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 636 union ccb *ccb; 637 638 ccb = cam_periph_getccb(periph, /*priority*/1); 639 640 scsi_synchronize_cache(&ccb->csio, 641 /*retries*/1, 642 /*cbfcnp*/dadone, 643 MSG_SIMPLE_Q_TAG, 644 /*begin_lba*/0,/* Cover the whole disk */ 645 /*lb_count*/0, 646 SSD_FULL_SIZE, 647 5 * 60 * 1000); 648 649 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 650 /*sense_flags*/SF_RETRY_UA, 651 softc->disk->d_devstat); 652 653 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 654 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 655 CAM_SCSI_STATUS_ERROR) { 656 int asc, ascq; 657 int sense_key, error_code; 658 659 scsi_extract_sense(&ccb->csio.sense_data, 660 &error_code, 661 &sense_key, 662 &asc, &ascq); 663 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 664 scsi_sense_print(&ccb->csio); 665 } else { 666 xpt_print_path(periph->path); 667 printf("Synchronize cache failed, status " 668 "== 0x%x, scsi status == 0x%x\n", 669 ccb->csio.ccb_h.status, 670 ccb->csio.scsi_status); 671 } 672 } 673 674 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 675 cam_release_devq(ccb->ccb_h.path, 676 /*relsim_flags*/0, 677 /*reduction*/0, 678 /*timeout*/0, 679 /*getcount_only*/0); 680 681 xpt_release_ccb(ccb); 682 683 } 684 685 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 686 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 687 daprevent(periph, PR_ALLOW); 688 /* 689 * If we've got removeable media, mark the blocksize as 690 * unavailable, since it could change when new media is 691 * inserted. 692 */ 693 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 694 } 695 696 softc->flags &= ~DA_FLAG_OPEN; 697 cam_periph_unlock(periph); 698 cam_periph_release(periph); 699 return (0); 700 } 701 702 /* 703 * Actually translate the requested transfer into one the physical driver 704 * can understand. The transfer is described by a buf and will include 705 * only one physical transfer. 706 */ 707 static void 708 dastrategy(struct bio *bp) 709 { 710 struct cam_periph *periph; 711 struct da_softc *softc; 712 int s; 713 714 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 715 if (periph == NULL) { 716 biofinish(bp, NULL, ENXIO); 717 return; 718 } 719 softc = (struct da_softc *)periph->softc; 720 #if 0 721 /* 722 * check it's not too big a transfer for our adapter 723 */ 724 scsi_minphys(bp,&sd_switch); 725 #endif 726 727 /* 728 * Mask interrupts so that the pack cannot be invalidated until 729 * after we are in the queue. Otherwise, we might not properly 730 * clean up one of the buffers. 731 */ 732 s = splbio(); 733 734 /* 735 * If the device has been made invalid, error out 736 */ 737 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 738 splx(s); 739 biofinish(bp, NULL, ENXIO); 740 return; 741 } 742 743 /* 744 * Place it in the queue of disk activities for this disk 745 */ 746 bioq_disksort(&softc->bio_queue, bp); 747 748 splx(s); 749 750 /* 751 * Schedule ourselves for performing the work. 752 */ 753 xpt_schedule(periph, /* XXX priority */1); 754 755 return; 756 } 757 758 static int 759 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 760 { 761 struct cam_periph *periph; 762 struct da_softc *softc; 763 u_int secsize; 764 struct ccb_scsiio csio; 765 struct disk *dp; 766 767 dp = arg; 768 periph = dp->d_drv1; 769 if (periph == NULL) 770 return (ENXIO); 771 softc = (struct da_softc *)periph->softc; 772 secsize = softc->params.secsize; 773 774 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 775 return (ENXIO); 776 777 if (length > 0) { 778 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 779 csio.ccb_h.ccb_state = DA_CCB_DUMP; 780 scsi_read_write(&csio, 781 /*retries*/1, 782 dadone, 783 MSG_ORDERED_Q_TAG, 784 /*read*/FALSE, 785 /*byte2*/0, 786 /*minimum_cmd_size*/ softc->minimum_cmd_size, 787 offset / secsize, 788 length / secsize, 789 /*data_ptr*/(u_int8_t *) virtual, 790 /*dxfer_len*/length, 791 /*sense_len*/SSD_FULL_SIZE, 792 DA_DEFAULT_TIMEOUT * 1000); 793 xpt_polled_action((union ccb *)&csio); 794 795 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 796 printf("Aborting dump due to I/O error.\n"); 797 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 798 CAM_SCSI_STATUS_ERROR) 799 scsi_sense_print(&csio); 800 else 801 printf("status == 0x%x, scsi status == 0x%x\n", 802 csio.ccb_h.status, csio.scsi_status); 803 return(EIO); 804 } 805 return(0); 806 } 807 808 /* 809 * Sync the disk cache contents to the physical media. 810 */ 811 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 812 813 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 814 csio.ccb_h.ccb_state = DA_CCB_DUMP; 815 scsi_synchronize_cache(&csio, 816 /*retries*/1, 817 /*cbfcnp*/dadone, 818 MSG_SIMPLE_Q_TAG, 819 /*begin_lba*/0,/* Cover the whole disk */ 820 /*lb_count*/0, 821 SSD_FULL_SIZE, 822 5 * 60 * 1000); 823 xpt_polled_action((union ccb *)&csio); 824 825 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 826 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 827 CAM_SCSI_STATUS_ERROR) { 828 int asc, ascq; 829 int sense_key, error_code; 830 831 scsi_extract_sense(&csio.sense_data, 832 &error_code, 833 &sense_key, 834 &asc, &ascq); 835 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 836 scsi_sense_print(&csio); 837 } else { 838 xpt_print_path(periph->path); 839 printf("Synchronize cache failed, status " 840 "== 0x%x, scsi status == 0x%x\n", 841 csio.ccb_h.status, csio.scsi_status); 842 } 843 } 844 } 845 return (0); 846 } 847 848 static void 849 dainit(void) 850 { 851 cam_status status; 852 struct cam_path *path; 853 854 SLIST_INIT(&softc_list); 855 856 /* 857 * Install a global async callback. This callback will 858 * receive async callbacks like "new device found". 859 */ 860 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 861 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 862 863 if (status == CAM_REQ_CMP) { 864 struct ccb_setasync csa; 865 866 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 867 csa.ccb_h.func_code = XPT_SASYNC_CB; 868 csa.event_enable = AC_FOUND_DEVICE; 869 csa.callback = daasync; 870 csa.callback_arg = NULL; 871 xpt_action((union ccb *)&csa); 872 status = csa.ccb_h.status; 873 xpt_free_path(path); 874 } 875 876 if (status != CAM_REQ_CMP) { 877 printf("da: Failed to attach master async callback " 878 "due to status 0x%x!\n", status); 879 } else if (da_send_ordered) { 880 881 /* 882 * Schedule a periodic event to occasionally send an 883 * ordered tag to a device. 884 */ 885 timeout(dasendorderedtag, NULL, 886 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 887 888 /* Register our shutdown event handler */ 889 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 890 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 891 printf("dainit: shutdown event registration failed!\n"); 892 } 893 } 894 895 static void 896 daoninvalidate(struct cam_periph *periph) 897 { 898 int s; 899 struct da_softc *softc; 900 struct ccb_setasync csa; 901 902 softc = (struct da_softc *)periph->softc; 903 904 /* 905 * De-register any async callbacks. 906 */ 907 xpt_setup_ccb(&csa.ccb_h, periph->path, 908 /* priority */ 5); 909 csa.ccb_h.func_code = XPT_SASYNC_CB; 910 csa.event_enable = 0; 911 csa.callback = daasync; 912 csa.callback_arg = periph; 913 xpt_action((union ccb *)&csa); 914 915 softc->flags |= DA_FLAG_PACK_INVALID; 916 917 /* 918 * Although the oninvalidate() routines are always called at 919 * splsoftcam, we need to be at splbio() here to keep the buffer 920 * queue from being modified while we traverse it. 921 */ 922 s = splbio(); 923 924 /* 925 * Return all queued I/O with ENXIO. 926 * XXX Handle any transactions queued to the card 927 * with XPT_ABORT_CCB. 928 */ 929 bioq_flush(&softc->bio_queue, NULL, ENXIO); 930 splx(s); 931 932 SLIST_REMOVE(&softc_list, softc, da_softc, links); 933 934 disk_gone(softc->disk); 935 xpt_print_path(periph->path); 936 printf("lost device\n"); 937 } 938 939 static void 940 dacleanup(struct cam_periph *periph) 941 { 942 struct da_softc *softc; 943 944 softc = (struct da_softc *)periph->softc; 945 946 xpt_print_path(periph->path); 947 printf("removing device entry\n"); 948 /* 949 * If we can't free the sysctl tree, oh well... 950 */ 951 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 952 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 953 xpt_print_path(periph->path); 954 printf("can't remove sysctl context\n"); 955 } 956 disk_destroy(softc->disk); 957 free(softc, M_DEVBUF); 958 } 959 960 static void 961 daasync(void *callback_arg, u_int32_t code, 962 struct cam_path *path, void *arg) 963 { 964 struct cam_periph *periph; 965 966 periph = (struct cam_periph *)callback_arg; 967 switch (code) { 968 case AC_FOUND_DEVICE: 969 { 970 struct ccb_getdev *cgd; 971 cam_status status; 972 973 cgd = (struct ccb_getdev *)arg; 974 if (cgd == NULL) 975 break; 976 977 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 978 && SID_TYPE(&cgd->inq_data) != T_RBC 979 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 980 break; 981 982 /* 983 * Allocate a peripheral instance for 984 * this device and start the probe 985 * process. 986 */ 987 status = cam_periph_alloc(daregister, daoninvalidate, 988 dacleanup, dastart, 989 "da", CAM_PERIPH_BIO, 990 cgd->ccb_h.path, daasync, 991 AC_FOUND_DEVICE, cgd); 992 993 if (status != CAM_REQ_CMP 994 && status != CAM_REQ_INPROG) 995 printf("daasync: Unable to attach to new device " 996 "due to status 0x%x\n", status); 997 break; 998 } 999 case AC_SENT_BDR: 1000 case AC_BUS_RESET: 1001 { 1002 struct da_softc *softc; 1003 struct ccb_hdr *ccbh; 1004 int s; 1005 1006 softc = (struct da_softc *)periph->softc; 1007 s = splsoftcam(); 1008 /* 1009 * Don't fail on the expected unit attention 1010 * that will occur. 1011 */ 1012 softc->flags |= DA_FLAG_RETRY_UA; 1013 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1014 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1015 splx(s); 1016 /* FALLTHROUGH*/ 1017 } 1018 default: 1019 cam_periph_async(periph, code, path, arg); 1020 break; 1021 } 1022 } 1023 1024 static void 1025 dasysctlinit(void *context, int pending) 1026 { 1027 struct cam_periph *periph; 1028 struct da_softc *softc; 1029 char tmpstr[80], tmpstr2[80]; 1030 1031 periph = (struct cam_periph *)context; 1032 softc = (struct da_softc *)periph->softc; 1033 1034 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1035 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1036 1037 mtx_lock(&Giant); 1038 sysctl_ctx_init(&softc->sysctl_ctx); 1039 softc->flags |= DA_FLAG_SCTX_INIT; 1040 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1041 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1042 CTLFLAG_RD, 0, tmpstr); 1043 if (softc->sysctl_tree == NULL) { 1044 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1045 mtx_unlock(&Giant); 1046 return; 1047 } 1048 1049 /* 1050 * Now register the sysctl handler, so the user can the value on 1051 * the fly. 1052 */ 1053 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1054 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1055 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1056 "Minimum CDB size"); 1057 1058 mtx_unlock(&Giant); 1059 } 1060 1061 static int 1062 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1063 { 1064 int error, value; 1065 1066 value = *(int *)arg1; 1067 1068 error = sysctl_handle_int(oidp, &value, 0, req); 1069 1070 if ((error != 0) 1071 || (req->newptr == NULL)) 1072 return (error); 1073 1074 /* 1075 * Acceptable values here are 6, 10, 12 or 16. 1076 */ 1077 if (value < 6) 1078 value = 6; 1079 else if ((value > 6) 1080 && (value <= 10)) 1081 value = 10; 1082 else if ((value > 10) 1083 && (value <= 12)) 1084 value = 12; 1085 else if (value > 12) 1086 value = 16; 1087 1088 *(int *)arg1 = value; 1089 1090 return (0); 1091 } 1092 1093 static cam_status 1094 daregister(struct cam_periph *periph, void *arg) 1095 { 1096 int s; 1097 struct da_softc *softc; 1098 struct ccb_setasync csa; 1099 struct ccb_pathinq cpi; 1100 struct ccb_getdev *cgd; 1101 char tmpstr[80]; 1102 caddr_t match; 1103 1104 cgd = (struct ccb_getdev *)arg; 1105 if (periph == NULL) { 1106 printf("daregister: periph was NULL!!\n"); 1107 return(CAM_REQ_CMP_ERR); 1108 } 1109 1110 if (cgd == NULL) { 1111 printf("daregister: no getdev CCB, can't register device\n"); 1112 return(CAM_REQ_CMP_ERR); 1113 } 1114 1115 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1116 M_NOWAIT|M_ZERO); 1117 1118 if (softc == NULL) { 1119 printf("daregister: Unable to probe new device. " 1120 "Unable to allocate softc\n"); 1121 return(CAM_REQ_CMP_ERR); 1122 } 1123 1124 LIST_INIT(&softc->pending_ccbs); 1125 softc->state = DA_STATE_PROBE; 1126 bioq_init(&softc->bio_queue); 1127 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1128 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1129 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1130 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1131 1132 periph->softc = softc; 1133 1134 /* 1135 * See if this device has any quirks. 1136 */ 1137 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1138 (caddr_t)da_quirk_table, 1139 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1140 sizeof(*da_quirk_table), scsi_inquiry_match); 1141 1142 if (match != NULL) 1143 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1144 else 1145 softc->quirks = DA_Q_NONE; 1146 1147 /* Check if the SIM does not want 6 byte commands */ 1148 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1149 cpi.ccb_h.func_code = XPT_PATH_INQ; 1150 xpt_action((union ccb *)&cpi); 1151 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1152 softc->quirks |= DA_Q_NO_6_BYTE; 1153 1154 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1155 1156 /* 1157 * RBC devices don't have to support READ(6), only READ(10). 1158 */ 1159 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1160 softc->minimum_cmd_size = 10; 1161 else 1162 softc->minimum_cmd_size = 6; 1163 1164 /* 1165 * Load the user's default, if any. 1166 */ 1167 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1168 periph->unit_number); 1169 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1170 1171 /* 1172 * 6, 10, 12 and 16 are the currently permissible values. 1173 */ 1174 if (softc->minimum_cmd_size < 6) 1175 softc->minimum_cmd_size = 6; 1176 else if ((softc->minimum_cmd_size > 6) 1177 && (softc->minimum_cmd_size <= 10)) 1178 softc->minimum_cmd_size = 10; 1179 else if ((softc->minimum_cmd_size > 10) 1180 && (softc->minimum_cmd_size <= 12)) 1181 softc->minimum_cmd_size = 12; 1182 else if (softc->minimum_cmd_size > 12) 1183 softc->minimum_cmd_size = 16; 1184 1185 /* 1186 * Block our timeout handler while we 1187 * add this softc to the dev list. 1188 */ 1189 s = splsoftclock(); 1190 SLIST_INSERT_HEAD(&softc_list, softc, links); 1191 splx(s); 1192 1193 /* 1194 * Register this media as a disk 1195 */ 1196 1197 softc->disk = disk_alloc(); 1198 softc->disk->d_open = daopen; 1199 softc->disk->d_close = daclose; 1200 softc->disk->d_strategy = dastrategy; 1201 softc->disk->d_dump = dadump; 1202 softc->disk->d_name = "da"; 1203 softc->disk->d_drv1 = periph; 1204 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1205 softc->disk->d_unit = periph->unit_number; 1206 softc->disk->d_flags = DISKFLAG_NEEDSGIANT; 1207 disk_create(softc->disk, DISK_VERSION); 1208 1209 /* 1210 * Add async callbacks for bus reset and 1211 * bus device reset calls. I don't bother 1212 * checking if this fails as, in most cases, 1213 * the system will function just fine without 1214 * them and the only alternative would be to 1215 * not attach the device on failure. 1216 */ 1217 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1218 csa.ccb_h.func_code = XPT_SASYNC_CB; 1219 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1220 csa.callback = daasync; 1221 csa.callback_arg = periph; 1222 xpt_action((union ccb *)&csa); 1223 /* 1224 * Lock this peripheral until we are setup. 1225 * This first call can't block 1226 */ 1227 (void)cam_periph_lock(periph, PRIBIO); 1228 xpt_schedule(periph, /*priority*/5); 1229 1230 return(CAM_REQ_CMP); 1231 } 1232 1233 static void 1234 dastart(struct cam_periph *periph, union ccb *start_ccb) 1235 { 1236 struct da_softc *softc; 1237 1238 softc = (struct da_softc *)periph->softc; 1239 1240 1241 switch (softc->state) { 1242 case DA_STATE_NORMAL: 1243 { 1244 /* Pull a buffer from the queue and get going on it */ 1245 struct bio *bp; 1246 int s; 1247 1248 /* 1249 * See if there is a buf with work for us to do.. 1250 */ 1251 s = splbio(); 1252 bp = bioq_first(&softc->bio_queue); 1253 if (periph->immediate_priority <= periph->pinfo.priority) { 1254 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1255 ("queuing for immediate ccb\n")); 1256 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1257 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1258 periph_links.sle); 1259 periph->immediate_priority = CAM_PRIORITY_NONE; 1260 splx(s); 1261 wakeup(&periph->ccb_list); 1262 } else if (bp == NULL) { 1263 splx(s); 1264 xpt_release_ccb(start_ccb); 1265 } else { 1266 int oldspl; 1267 u_int8_t tag_code; 1268 1269 bioq_remove(&softc->bio_queue, bp); 1270 1271 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1272 softc->flags &= ~DA_FLAG_NEED_OTAG; 1273 softc->ordered_tag_count++; 1274 tag_code = MSG_ORDERED_Q_TAG; 1275 } else { 1276 tag_code = MSG_SIMPLE_Q_TAG; 1277 } 1278 scsi_read_write(&start_ccb->csio, 1279 /*retries*/da_retry_count, 1280 /*cbfcnp*/dadone, 1281 /*tag_action*/tag_code, 1282 /*read_op*/bp->bio_cmd == BIO_READ, 1283 /*byte2*/0, 1284 softc->minimum_cmd_size, 1285 /*lba*/bp->bio_pblkno, 1286 /*block_count*/bp->bio_bcount / 1287 softc->params.secsize, 1288 /*data_ptr*/ bp->bio_data, 1289 /*dxfer_len*/ bp->bio_bcount, 1290 /*sense_len*/SSD_FULL_SIZE, 1291 /*timeout*/da_default_timeout*1000); 1292 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1293 1294 /* 1295 * Block out any asyncronous callbacks 1296 * while we touch the pending ccb list. 1297 */ 1298 oldspl = splcam(); 1299 LIST_INSERT_HEAD(&softc->pending_ccbs, 1300 &start_ccb->ccb_h, periph_links.le); 1301 softc->outstanding_cmds++; 1302 splx(oldspl); 1303 1304 /* We expect a unit attention from this device */ 1305 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1306 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1307 softc->flags &= ~DA_FLAG_RETRY_UA; 1308 } 1309 1310 start_ccb->ccb_h.ccb_bp = bp; 1311 bp = bioq_first(&softc->bio_queue); 1312 splx(s); 1313 1314 xpt_action(start_ccb); 1315 } 1316 1317 if (bp != NULL) { 1318 /* Have more work to do, so ensure we stay scheduled */ 1319 xpt_schedule(periph, /* XXX priority */1); 1320 } 1321 break; 1322 } 1323 case DA_STATE_PROBE: 1324 { 1325 struct ccb_scsiio *csio; 1326 struct scsi_read_capacity_data *rcap; 1327 1328 rcap = (struct scsi_read_capacity_data *) 1329 malloc(sizeof(*rcap), M_TEMP, M_NOWAIT|M_ZERO); 1330 if (rcap == NULL) { 1331 printf("dastart: Couldn't malloc read_capacity data\n"); 1332 /* da_free_periph??? */ 1333 break; 1334 } 1335 csio = &start_ccb->csio; 1336 scsi_read_capacity(csio, 1337 /*retries*/4, 1338 dadone, 1339 MSG_SIMPLE_Q_TAG, 1340 rcap, 1341 SSD_FULL_SIZE, 1342 /*timeout*/5000); 1343 start_ccb->ccb_h.ccb_bp = NULL; 1344 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1345 xpt_action(start_ccb); 1346 break; 1347 } 1348 case DA_STATE_PROBE2: 1349 { 1350 struct ccb_scsiio *csio; 1351 struct scsi_read_capacity_data_long *rcaplong; 1352 1353 rcaplong = (struct scsi_read_capacity_data_long *) 1354 malloc(sizeof(*rcaplong), M_TEMP, M_NOWAIT|M_ZERO); 1355 if (rcaplong == NULL) { 1356 printf("dastart: Couldn't malloc read_capacity data\n"); 1357 /* da_free_periph??? */ 1358 break; 1359 } 1360 csio = &start_ccb->csio; 1361 scsi_read_capacity_16(csio, 1362 /*retries*/ 4, 1363 /*cbfcnp*/ dadone, 1364 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1365 /*lba*/ 0, 1366 /*reladr*/ 0, 1367 /*pmi*/ 0, 1368 rcaplong, 1369 /*sense_len*/ SSD_FULL_SIZE, 1370 /*timeout*/ 60000); 1371 start_ccb->ccb_h.ccb_bp = NULL; 1372 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1373 xpt_action(start_ccb); 1374 break; 1375 } 1376 } 1377 } 1378 1379 static int 1380 cmd6workaround(union ccb *ccb) 1381 { 1382 struct scsi_rw_6 cmd6; 1383 struct scsi_rw_10 *cmd10; 1384 struct da_softc *softc; 1385 u_int8_t *cdb; 1386 int frozen; 1387 1388 cdb = ccb->csio.cdb_io.cdb_bytes; 1389 1390 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1391 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1392 (*cdb != READ_6 && *cdb != WRITE_6)) 1393 return 0; 1394 1395 xpt_print_path(ccb->ccb_h.path); 1396 printf("READ(6)/WRITE(6) not supported, " 1397 "increasing minimum_cmd_size to 10.\n"); 1398 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1399 softc->minimum_cmd_size = 10; 1400 1401 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1402 cmd10 = (struct scsi_rw_10 *)cdb; 1403 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1404 cmd10->byte2 = 0; 1405 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1406 cmd10->reserved = 0; 1407 scsi_ulto2b(cmd6.length, cmd10->length); 1408 cmd10->control = cmd6.control; 1409 ccb->csio.cdb_len = sizeof(*cmd10); 1410 1411 /* Requeue request, unfreezing queue if necessary */ 1412 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1413 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1414 xpt_action(ccb); 1415 if (frozen) { 1416 cam_release_devq(ccb->ccb_h.path, 1417 /*relsim_flags*/0, 1418 /*reduction*/0, 1419 /*timeout*/0, 1420 /*getcount_only*/0); 1421 } 1422 return (ERESTART); 1423 } 1424 1425 static void 1426 dadone(struct cam_periph *periph, union ccb *done_ccb) 1427 { 1428 struct da_softc *softc; 1429 struct ccb_scsiio *csio; 1430 1431 softc = (struct da_softc *)periph->softc; 1432 csio = &done_ccb->csio; 1433 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1434 case DA_CCB_BUFFER_IO: 1435 { 1436 struct bio *bp; 1437 int oldspl; 1438 1439 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1440 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1441 int error; 1442 int s; 1443 int sf; 1444 1445 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1446 sf = SF_RETRY_UA; 1447 else 1448 sf = 0; 1449 1450 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1451 if (error == ERESTART) { 1452 /* 1453 * A retry was scheuled, so 1454 * just return. 1455 */ 1456 return; 1457 } 1458 if (error != 0) { 1459 1460 s = splbio(); 1461 1462 if (error == ENXIO) { 1463 /* 1464 * Catastrophic error. Mark our pack as 1465 * invalid. 1466 */ 1467 /* XXX See if this is really a media 1468 * change first. 1469 */ 1470 xpt_print_path(periph->path); 1471 printf("Invalidating pack\n"); 1472 softc->flags |= DA_FLAG_PACK_INVALID; 1473 } 1474 1475 /* 1476 * return all queued I/O with EIO, so that 1477 * the client can retry these I/Os in the 1478 * proper order should it attempt to recover. 1479 */ 1480 bioq_flush(&softc->bio_queue, NULL, EIO); 1481 splx(s); 1482 bp->bio_error = error; 1483 bp->bio_resid = bp->bio_bcount; 1484 bp->bio_flags |= BIO_ERROR; 1485 } else { 1486 bp->bio_resid = csio->resid; 1487 bp->bio_error = 0; 1488 if (bp->bio_resid != 0) 1489 bp->bio_flags |= BIO_ERROR; 1490 } 1491 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1492 cam_release_devq(done_ccb->ccb_h.path, 1493 /*relsim_flags*/0, 1494 /*reduction*/0, 1495 /*timeout*/0, 1496 /*getcount_only*/0); 1497 } else { 1498 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1499 panic("REQ_CMP with QFRZN"); 1500 bp->bio_resid = csio->resid; 1501 if (csio->resid > 0) 1502 bp->bio_flags |= BIO_ERROR; 1503 } 1504 1505 /* 1506 * Block out any asyncronous callbacks 1507 * while we touch the pending ccb list. 1508 */ 1509 oldspl = splcam(); 1510 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1511 softc->outstanding_cmds--; 1512 if (softc->outstanding_cmds == 0) 1513 softc->flags |= DA_FLAG_WENT_IDLE; 1514 splx(oldspl); 1515 1516 biodone(bp); 1517 break; 1518 } 1519 case DA_CCB_PROBE: 1520 case DA_CCB_PROBE2: 1521 { 1522 struct scsi_read_capacity_data *rdcap; 1523 struct scsi_read_capacity_data_long *rcaplong; 1524 char announce_buf[80]; 1525 1526 rdcap = NULL; 1527 rcaplong = NULL; 1528 if (softc->state == DA_STATE_PROBE) 1529 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1530 else 1531 rcaplong = (struct scsi_read_capacity_data_long *) 1532 csio->data_ptr; 1533 1534 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1535 struct disk_params *dp; 1536 uint32_t block_size; 1537 uint64_t maxsector; 1538 1539 if (softc->state == DA_STATE_PROBE) { 1540 block_size = scsi_4btoul(rdcap->length); 1541 maxsector = scsi_4btoul(rdcap->addr); 1542 1543 /* 1544 * According to SBC-2, if the standard 10 1545 * byte READ CAPACITY command returns 2^32, 1546 * we should issue the 16 byte version of 1547 * the command, since the device in question 1548 * has more sectors than can be represented 1549 * with the short version of the command. 1550 */ 1551 if (maxsector == 0xffffffff) { 1552 softc->state = DA_STATE_PROBE2; 1553 free(rdcap, M_TEMP); 1554 xpt_release_ccb(done_ccb); 1555 xpt_schedule(periph, /*priority*/5); 1556 return; 1557 } 1558 } else { 1559 block_size = scsi_4btoul(rcaplong->length); 1560 maxsector = scsi_8btou64(rcaplong->addr); 1561 } 1562 1563 /* 1564 * Because GEOM code just will panic us if we 1565 * give them an 'illegal' value we'll avoid that 1566 * here. 1567 */ 1568 if (block_size >= MAXPHYS || block_size == 0) { 1569 xpt_print_path(periph->path); 1570 printf("unsupportable block size %ju\n", 1571 (uintmax_t) block_size); 1572 announce_buf[0] = '\0'; 1573 cam_periph_invalidate(periph); 1574 } else { 1575 dasetgeom(periph, block_size, maxsector); 1576 dp = &softc->params; 1577 snprintf(announce_buf, sizeof(announce_buf), 1578 "%juMB (%ju %u byte sectors: %dH %dS/T " 1579 "%dC)", (uintmax_t) 1580 (((uintmax_t)dp->secsize * 1581 dp->sectors) / (1024*1024)), 1582 (uintmax_t)dp->sectors, 1583 dp->secsize, dp->heads, 1584 dp->secs_per_track, dp->cylinders); 1585 } 1586 } else { 1587 int error; 1588 1589 announce_buf[0] = '\0'; 1590 1591 /* 1592 * Retry any UNIT ATTENTION type errors. They 1593 * are expected at boot. 1594 */ 1595 error = daerror(done_ccb, CAM_RETRY_SELTO, 1596 SF_RETRY_UA|SF_NO_PRINT); 1597 if (error == ERESTART) { 1598 /* 1599 * A retry was scheuled, so 1600 * just return. 1601 */ 1602 return; 1603 } else if (error != 0) { 1604 struct scsi_sense_data *sense; 1605 int asc, ascq; 1606 int sense_key, error_code; 1607 int have_sense; 1608 cam_status status; 1609 struct ccb_getdev cgd; 1610 1611 /* Don't wedge this device's queue */ 1612 status = done_ccb->ccb_h.status; 1613 if ((status & CAM_DEV_QFRZN) != 0) 1614 cam_release_devq(done_ccb->ccb_h.path, 1615 /*relsim_flags*/0, 1616 /*reduction*/0, 1617 /*timeout*/0, 1618 /*getcount_only*/0); 1619 1620 1621 xpt_setup_ccb(&cgd.ccb_h, 1622 done_ccb->ccb_h.path, 1623 /* priority */ 1); 1624 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1625 xpt_action((union ccb *)&cgd); 1626 1627 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1628 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1629 || ((status & CAM_AUTOSNS_VALID) == 0)) 1630 have_sense = FALSE; 1631 else 1632 have_sense = TRUE; 1633 1634 if (have_sense) { 1635 sense = &csio->sense_data; 1636 scsi_extract_sense(sense, &error_code, 1637 &sense_key, 1638 &asc, &ascq); 1639 } 1640 /* 1641 * Attach to anything that claims to be a 1642 * direct access or optical disk device, 1643 * as long as it doesn't return a "Logical 1644 * unit not supported" (0x25) error. 1645 */ 1646 if ((have_sense) && (asc != 0x25) 1647 && (error_code == SSD_CURRENT_ERROR)) { 1648 const char *sense_key_desc; 1649 const char *asc_desc; 1650 1651 scsi_sense_desc(sense_key, asc, ascq, 1652 &cgd.inq_data, 1653 &sense_key_desc, 1654 &asc_desc); 1655 snprintf(announce_buf, 1656 sizeof(announce_buf), 1657 "Attempt to query device " 1658 "size failed: %s, %s", 1659 sense_key_desc, 1660 asc_desc); 1661 } else { 1662 if (have_sense) 1663 scsi_sense_print( 1664 &done_ccb->csio); 1665 else { 1666 xpt_print_path(periph->path); 1667 printf("got CAM status %#x\n", 1668 done_ccb->ccb_h.status); 1669 } 1670 1671 xpt_print_path(periph->path); 1672 printf("fatal error, failed" 1673 " to attach to device\n"); 1674 1675 /* 1676 * Free up resources. 1677 */ 1678 cam_periph_invalidate(periph); 1679 } 1680 } 1681 } 1682 free(csio->data_ptr, M_TEMP); 1683 if (announce_buf[0] != '\0') { 1684 xpt_announce_periph(periph, announce_buf); 1685 /* 1686 * Create our sysctl variables, now that we know 1687 * we have successfully attached. 1688 */ 1689 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1690 } 1691 softc->state = DA_STATE_NORMAL; 1692 /* 1693 * Since our peripheral may be invalidated by an error 1694 * above or an external event, we must release our CCB 1695 * before releasing the probe lock on the peripheral. 1696 * The peripheral will only go away once the last lock 1697 * is removed, and we need it around for the CCB release 1698 * operation. 1699 */ 1700 xpt_release_ccb(done_ccb); 1701 cam_periph_unlock(periph); 1702 return; 1703 } 1704 case DA_CCB_WAITING: 1705 { 1706 /* Caller will release the CCB */ 1707 wakeup(&done_ccb->ccb_h.cbfcnp); 1708 return; 1709 } 1710 case DA_CCB_DUMP: 1711 /* No-op. We're polling */ 1712 return; 1713 default: 1714 break; 1715 } 1716 xpt_release_ccb(done_ccb); 1717 } 1718 1719 static int 1720 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1721 { 1722 struct da_softc *softc; 1723 struct cam_periph *periph; 1724 int error; 1725 1726 periph = xpt_path_periph(ccb->ccb_h.path); 1727 softc = (struct da_softc *)periph->softc; 1728 1729 /* 1730 * Automatically detect devices that do not support 1731 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1732 */ 1733 error = 0; 1734 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1735 error = cmd6workaround(ccb); 1736 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1737 CAM_SCSI_STATUS_ERROR) 1738 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1739 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1740 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1741 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1742 int sense_key, error_code, asc, ascq; 1743 1744 scsi_extract_sense(&ccb->csio.sense_data, 1745 &error_code, &sense_key, &asc, &ascq); 1746 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1747 error = cmd6workaround(ccb); 1748 } 1749 if (error == ERESTART) 1750 return (ERESTART); 1751 1752 /* 1753 * XXX 1754 * Until we have a better way of doing pack validation, 1755 * don't treat UAs as errors. 1756 */ 1757 sense_flags |= SF_RETRY_UA; 1758 return(cam_periph_error(ccb, cam_flags, sense_flags, 1759 &softc->saved_ccb)); 1760 } 1761 1762 static void 1763 daprevent(struct cam_periph *periph, int action) 1764 { 1765 struct da_softc *softc; 1766 union ccb *ccb; 1767 int error; 1768 1769 softc = (struct da_softc *)periph->softc; 1770 1771 if (((action == PR_ALLOW) 1772 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1773 || ((action == PR_PREVENT) 1774 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1775 return; 1776 } 1777 1778 ccb = cam_periph_getccb(periph, /*priority*/1); 1779 1780 scsi_prevent(&ccb->csio, 1781 /*retries*/1, 1782 /*cbcfp*/dadone, 1783 MSG_SIMPLE_Q_TAG, 1784 action, 1785 SSD_FULL_SIZE, 1786 5000); 1787 1788 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1789 SF_RETRY_UA, softc->disk->d_devstat); 1790 1791 if (error == 0) { 1792 if (action == PR_ALLOW) 1793 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1794 else 1795 softc->flags |= DA_FLAG_PACK_LOCKED; 1796 } 1797 1798 xpt_release_ccb(ccb); 1799 } 1800 1801 static int 1802 dagetcapacity(struct cam_periph *periph) 1803 { 1804 struct da_softc *softc; 1805 union ccb *ccb; 1806 struct scsi_read_capacity_data *rcap; 1807 struct scsi_read_capacity_data_long *rcaplong; 1808 uint32_t block_len; 1809 uint64_t maxsector; 1810 int error; 1811 u_int32_t sense_flags; 1812 1813 softc = (struct da_softc *)periph->softc; 1814 block_len = 0; 1815 maxsector = 0; 1816 error = 0; 1817 sense_flags = SF_RETRY_UA; 1818 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1819 sense_flags |= SF_NO_PRINT; 1820 1821 /* Do a read capacity */ 1822 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1823 M_TEMP, 1824 M_WAITOK); 1825 1826 ccb = cam_periph_getccb(periph, /*priority*/1); 1827 scsi_read_capacity(&ccb->csio, 1828 /*retries*/4, 1829 /*cbfncp*/dadone, 1830 MSG_SIMPLE_Q_TAG, 1831 rcap, 1832 SSD_FULL_SIZE, 1833 /*timeout*/60000); 1834 ccb->ccb_h.ccb_bp = NULL; 1835 1836 error = cam_periph_runccb(ccb, daerror, 1837 /*cam_flags*/CAM_RETRY_SELTO, 1838 sense_flags, 1839 softc->disk->d_devstat); 1840 1841 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1842 cam_release_devq(ccb->ccb_h.path, 1843 /*relsim_flags*/0, 1844 /*reduction*/0, 1845 /*timeout*/0, 1846 /*getcount_only*/0); 1847 1848 if (error == 0) { 1849 block_len = scsi_4btoul(rcap->length); 1850 maxsector = scsi_4btoul(rcap->addr); 1851 1852 if (maxsector != 0xffffffff) 1853 goto done; 1854 } else 1855 goto done; 1856 1857 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1858 1859 scsi_read_capacity_16(&ccb->csio, 1860 /*retries*/ 4, 1861 /*cbfcnp*/ dadone, 1862 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1863 /*lba*/ 0, 1864 /*reladr*/ 0, 1865 /*pmi*/ 0, 1866 rcaplong, 1867 /*sense_len*/ SSD_FULL_SIZE, 1868 /*timeout*/ 60000); 1869 ccb->ccb_h.ccb_bp = NULL; 1870 1871 error = cam_periph_runccb(ccb, daerror, 1872 /*cam_flags*/CAM_RETRY_SELTO, 1873 sense_flags, 1874 softc->disk->d_devstat); 1875 1876 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1877 cam_release_devq(ccb->ccb_h.path, 1878 /*relsim_flags*/0, 1879 /*reduction*/0, 1880 /*timeout*/0, 1881 /*getcount_only*/0); 1882 1883 if (error == 0) { 1884 block_len = scsi_4btoul(rcaplong->length); 1885 maxsector = scsi_8btou64(rcaplong->addr); 1886 } 1887 1888 done: 1889 1890 if (error == 0) 1891 dasetgeom(periph, block_len, maxsector); 1892 1893 xpt_release_ccb(ccb); 1894 1895 free(rcap, M_TEMP); 1896 1897 return (error); 1898 } 1899 1900 static void 1901 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1902 { 1903 struct ccb_calc_geometry ccg; 1904 struct da_softc *softc; 1905 struct disk_params *dp; 1906 1907 softc = (struct da_softc *)periph->softc; 1908 1909 dp = &softc->params; 1910 dp->secsize = block_len; 1911 dp->sectors = maxsector + 1; 1912 /* 1913 * Have the controller provide us with a geometry 1914 * for this disk. The only time the geometry 1915 * matters is when we boot and the controller 1916 * is the only one knowledgeable enough to come 1917 * up with something that will make this a bootable 1918 * device. 1919 */ 1920 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1921 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1922 ccg.block_size = dp->secsize; 1923 ccg.volume_size = dp->sectors; 1924 ccg.heads = 0; 1925 ccg.secs_per_track = 0; 1926 ccg.cylinders = 0; 1927 xpt_action((union ccb*)&ccg); 1928 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1929 /* 1930 * We don't know what went wrong here- but just pick 1931 * a geometry so we don't have nasty things like divide 1932 * by zero. 1933 */ 1934 dp->heads = 255; 1935 dp->secs_per_track = 255; 1936 dp->cylinders = dp->sectors / (255 * 255); 1937 if (dp->cylinders == 0) { 1938 dp->cylinders = 1; 1939 } 1940 } else { 1941 dp->heads = ccg.heads; 1942 dp->secs_per_track = ccg.secs_per_track; 1943 dp->cylinders = ccg.cylinders; 1944 } 1945 } 1946 1947 static void 1948 dasendorderedtag(void *arg) 1949 { 1950 struct da_softc *softc; 1951 int s; 1952 if (da_send_ordered) { 1953 for (softc = SLIST_FIRST(&softc_list); 1954 softc != NULL; 1955 softc = SLIST_NEXT(softc, links)) { 1956 s = splsoftcam(); 1957 if ((softc->ordered_tag_count == 0) 1958 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1959 softc->flags |= DA_FLAG_NEED_OTAG; 1960 } 1961 if (softc->outstanding_cmds > 0) 1962 softc->flags &= ~DA_FLAG_WENT_IDLE; 1963 1964 softc->ordered_tag_count = 0; 1965 splx(s); 1966 } 1967 /* Queue us up again */ 1968 timeout(dasendorderedtag, NULL, 1969 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1970 } 1971 } 1972 1973 /* 1974 * Step through all DA peripheral drivers, and if the device is still open, 1975 * sync the disk cache to physical media. 1976 */ 1977 static void 1978 dashutdown(void * arg, int howto) 1979 { 1980 struct cam_periph *periph; 1981 struct da_softc *softc; 1982 1983 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1984 union ccb ccb; 1985 softc = (struct da_softc *)periph->softc; 1986 1987 /* 1988 * We only sync the cache if the drive is still open, and 1989 * if the drive is capable of it.. 1990 */ 1991 if (((softc->flags & DA_FLAG_OPEN) == 0) 1992 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1993 continue; 1994 1995 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1996 1997 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1998 scsi_synchronize_cache(&ccb.csio, 1999 /*retries*/1, 2000 /*cbfcnp*/dadone, 2001 MSG_SIMPLE_Q_TAG, 2002 /*begin_lba*/0, /* whole disk */ 2003 /*lb_count*/0, 2004 SSD_FULL_SIZE, 2005 60 * 60 * 1000); 2006 2007 xpt_polled_action(&ccb); 2008 2009 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2010 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2011 CAM_SCSI_STATUS_ERROR) 2012 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2013 int error_code, sense_key, asc, ascq; 2014 2015 scsi_extract_sense(&ccb.csio.sense_data, 2016 &error_code, &sense_key, 2017 &asc, &ascq); 2018 2019 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2020 scsi_sense_print(&ccb.csio); 2021 } else { 2022 xpt_print_path(periph->path); 2023 printf("Synchronize cache failed, status " 2024 "== 0x%x, scsi status == 0x%x\n", 2025 ccb.ccb_h.status, ccb.csio.scsi_status); 2026 } 2027 } 2028 2029 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2030 cam_release_devq(ccb.ccb_h.path, 2031 /*relsim_flags*/0, 2032 /*reduction*/0, 2033 /*timeout*/0, 2034 /*getcount_only*/0); 2035 2036 } 2037 } 2038 2039 #else /* !_KERNEL */ 2040 2041 /* 2042 * XXX This is only left out of the kernel build to silence warnings. If, 2043 * for some reason this function is used in the kernel, the ifdefs should 2044 * be moved so it is included both in the kernel and userland. 2045 */ 2046 void 2047 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2048 void (*cbfcnp)(struct cam_periph *, union ccb *), 2049 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2050 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2051 u_int32_t timeout) 2052 { 2053 struct scsi_format_unit *scsi_cmd; 2054 2055 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2056 scsi_cmd->opcode = FORMAT_UNIT; 2057 scsi_cmd->byte2 = byte2; 2058 scsi_ulto2b(ileave, scsi_cmd->interleave); 2059 2060 cam_fill_csio(csio, 2061 retries, 2062 cbfcnp, 2063 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2064 tag_action, 2065 data_ptr, 2066 dxfer_len, 2067 sense_len, 2068 sizeof(*scsi_cmd), 2069 timeout); 2070 } 2071 2072 #endif /* _KERNEL */
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