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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/6.4/sys/cam/scsi/scsi_da.c 181127 2008-08-01 18:25:28Z emaste $"); 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 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 477 }, 478 { 479 /* 480 * Denver MP3 player 481 * PR: usb/107101 482 */ 483 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 484 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 485 }, 486 }; 487 488 static disk_strategy_t dastrategy; 489 static dumper_t dadump; 490 static periph_init_t dainit; 491 static void daasync(void *callback_arg, u_int32_t code, 492 struct cam_path *path, void *arg); 493 static void dasysctlinit(void *context, int pending); 494 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 495 static periph_ctor_t daregister; 496 static periph_dtor_t dacleanup; 497 static periph_start_t dastart; 498 static periph_oninv_t daoninvalidate; 499 static void dadone(struct cam_periph *periph, 500 union ccb *done_ccb); 501 static int daerror(union ccb *ccb, u_int32_t cam_flags, 502 u_int32_t sense_flags); 503 static void daprevent(struct cam_periph *periph, int action); 504 static int dagetcapacity(struct cam_periph *periph); 505 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 506 uint64_t maxsector); 507 static timeout_t dasendorderedtag; 508 static void dashutdown(void *arg, int howto); 509 510 #ifndef DA_DEFAULT_TIMEOUT 511 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 512 #endif 513 514 #ifndef DA_DEFAULT_RETRY 515 #define DA_DEFAULT_RETRY 4 516 #endif 517 518 #ifndef DA_DEFAULT_SEND_ORDERED 519 #define DA_DEFAULT_SEND_ORDERED 1 520 #endif 521 522 523 static int da_retry_count = DA_DEFAULT_RETRY; 524 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 525 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 526 527 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 528 "CAM Direct Access Disk driver"); 529 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 530 &da_retry_count, 0, "Normal I/O retry count"); 531 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 532 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 533 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 534 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 535 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 536 &da_send_ordered, 0, "Send Ordered Tags"); 537 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 538 539 /* 540 * DA_ORDEREDTAG_INTERVAL determines how often, relative 541 * to the default timeout, we check to see whether an ordered 542 * tagged transaction is appropriate to prevent simple tag 543 * starvation. Since we'd like to ensure that there is at least 544 * 1/2 of the timeout length left for a starved transaction to 545 * complete after we've sent an ordered tag, we must poll at least 546 * four times in every timeout period. This takes care of the worst 547 * case where a starved transaction starts during an interval that 548 * meets the requirement "don't send an ordered tag" test so it takes 549 * us two intervals to determine that a tag must be sent. 550 */ 551 #ifndef DA_ORDEREDTAG_INTERVAL 552 #define DA_ORDEREDTAG_INTERVAL 4 553 #endif 554 555 static struct periph_driver dadriver = 556 { 557 dainit, "da", 558 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 559 }; 560 561 PERIPHDRIVER_DECLARE(da, dadriver); 562 563 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); 564 565 static SLIST_HEAD(,da_softc) softc_list; 566 567 static int 568 daopen(struct disk *dp) 569 { 570 struct cam_periph *periph; 571 struct da_softc *softc; 572 int unit; 573 int error; 574 int s; 575 576 s = splsoftcam(); 577 periph = (struct cam_periph *)dp->d_drv1; 578 if (periph == NULL) { 579 splx(s); 580 return (ENXIO); 581 } 582 unit = periph->unit_number; 583 584 softc = (struct da_softc *)periph->softc; 585 586 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 587 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 588 unit)); 589 590 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) 591 return (error); /* error code from tsleep */ 592 593 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 594 return(ENXIO); 595 softc->flags |= DA_FLAG_OPEN; 596 597 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 598 /* Invalidate our pack information. */ 599 softc->flags &= ~DA_FLAG_PACK_INVALID; 600 } 601 splx(s); 602 603 error = dagetcapacity(periph); 604 605 if (error == 0) { 606 607 softc->disk->d_sectorsize = softc->params.secsize; 608 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 609 /* XXX: these are not actually "firmware" values, so they may be wrong */ 610 softc->disk->d_fwsectors = softc->params.secs_per_track; 611 softc->disk->d_fwheads = softc->params.heads; 612 softc->disk->d_devstat->block_size = softc->params.secsize; 613 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 614 } 615 616 if (error == 0) { 617 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 618 (softc->quirks & DA_Q_NO_PREVENT) == 0) 619 daprevent(periph, PR_PREVENT); 620 } else { 621 softc->flags &= ~DA_FLAG_OPEN; 622 cam_periph_release(periph); 623 } 624 cam_periph_unlock(periph); 625 return (error); 626 } 627 628 static int 629 daclose(struct disk *dp) 630 { 631 struct cam_periph *periph; 632 struct da_softc *softc; 633 int error; 634 635 periph = (struct cam_periph *)dp->d_drv1; 636 if (periph == NULL) 637 return (ENXIO); 638 639 softc = (struct da_softc *)periph->softc; 640 641 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 642 return (error); /* error code from tsleep */ 643 } 644 645 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 646 union ccb *ccb; 647 648 ccb = cam_periph_getccb(periph, /*priority*/1); 649 650 scsi_synchronize_cache(&ccb->csio, 651 /*retries*/1, 652 /*cbfcnp*/dadone, 653 MSG_SIMPLE_Q_TAG, 654 /*begin_lba*/0,/* Cover the whole disk */ 655 /*lb_count*/0, 656 SSD_FULL_SIZE, 657 5 * 60 * 1000); 658 659 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 660 /*sense_flags*/SF_RETRY_UA, 661 softc->disk->d_devstat); 662 663 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 664 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 665 CAM_SCSI_STATUS_ERROR) { 666 int asc, ascq; 667 int sense_key, error_code; 668 669 scsi_extract_sense(&ccb->csio.sense_data, 670 &error_code, 671 &sense_key, 672 &asc, &ascq); 673 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 674 scsi_sense_print(&ccb->csio); 675 } else { 676 xpt_print_path(periph->path); 677 printf("Synchronize cache failed, status " 678 "== 0x%x, scsi status == 0x%x\n", 679 ccb->csio.ccb_h.status, 680 ccb->csio.scsi_status); 681 } 682 } 683 684 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 685 cam_release_devq(ccb->ccb_h.path, 686 /*relsim_flags*/0, 687 /*reduction*/0, 688 /*timeout*/0, 689 /*getcount_only*/0); 690 691 xpt_release_ccb(ccb); 692 693 } 694 695 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 696 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 697 daprevent(periph, PR_ALLOW); 698 /* 699 * If we've got removeable media, mark the blocksize as 700 * unavailable, since it could change when new media is 701 * inserted. 702 */ 703 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 704 } 705 706 softc->flags &= ~DA_FLAG_OPEN; 707 cam_periph_unlock(periph); 708 cam_periph_release(periph); 709 return (0); 710 } 711 712 /* 713 * Actually translate the requested transfer into one the physical driver 714 * can understand. The transfer is described by a buf and will include 715 * only one physical transfer. 716 */ 717 static void 718 dastrategy(struct bio *bp) 719 { 720 struct cam_periph *periph; 721 struct da_softc *softc; 722 int s; 723 724 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 725 if (periph == NULL) { 726 biofinish(bp, NULL, ENXIO); 727 return; 728 } 729 softc = (struct da_softc *)periph->softc; 730 #if 0 731 /* 732 * check it's not too big a transfer for our adapter 733 */ 734 scsi_minphys(bp,&sd_switch); 735 #endif 736 737 /* 738 * Mask interrupts so that the pack cannot be invalidated until 739 * after we are in the queue. Otherwise, we might not properly 740 * clean up one of the buffers. 741 */ 742 s = splbio(); 743 744 /* 745 * If the device has been made invalid, error out 746 */ 747 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 748 splx(s); 749 biofinish(bp, NULL, ENXIO); 750 return; 751 } 752 753 /* 754 * Place it in the queue of disk activities for this disk 755 */ 756 bioq_disksort(&softc->bio_queue, bp); 757 758 splx(s); 759 760 /* 761 * Schedule ourselves for performing the work. 762 */ 763 xpt_schedule(periph, /* XXX priority */1); 764 765 return; 766 } 767 768 static int 769 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 770 { 771 struct cam_periph *periph; 772 struct da_softc *softc; 773 u_int secsize; 774 struct ccb_scsiio csio; 775 struct disk *dp; 776 777 dp = arg; 778 periph = dp->d_drv1; 779 if (periph == NULL) 780 return (ENXIO); 781 softc = (struct da_softc *)periph->softc; 782 secsize = softc->params.secsize; 783 784 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 785 return (ENXIO); 786 787 if (length > 0) { 788 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 789 csio.ccb_h.ccb_state = DA_CCB_DUMP; 790 scsi_read_write(&csio, 791 /*retries*/1, 792 dadone, 793 MSG_ORDERED_Q_TAG, 794 /*read*/FALSE, 795 /*byte2*/0, 796 /*minimum_cmd_size*/ softc->minimum_cmd_size, 797 offset / secsize, 798 length / secsize, 799 /*data_ptr*/(u_int8_t *) virtual, 800 /*dxfer_len*/length, 801 /*sense_len*/SSD_FULL_SIZE, 802 DA_DEFAULT_TIMEOUT * 1000); 803 xpt_polled_action((union ccb *)&csio); 804 805 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 806 printf("Aborting dump due to I/O error.\n"); 807 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 808 CAM_SCSI_STATUS_ERROR) 809 scsi_sense_print(&csio); 810 else 811 printf("status == 0x%x, scsi status == 0x%x\n", 812 csio.ccb_h.status, csio.scsi_status); 813 return(EIO); 814 } 815 return(0); 816 } 817 818 /* 819 * Sync the disk cache contents to the physical media. 820 */ 821 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 822 823 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 824 csio.ccb_h.ccb_state = DA_CCB_DUMP; 825 scsi_synchronize_cache(&csio, 826 /*retries*/1, 827 /*cbfcnp*/dadone, 828 MSG_SIMPLE_Q_TAG, 829 /*begin_lba*/0,/* Cover the whole disk */ 830 /*lb_count*/0, 831 SSD_FULL_SIZE, 832 5 * 60 * 1000); 833 xpt_polled_action((union ccb *)&csio); 834 835 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 836 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 837 CAM_SCSI_STATUS_ERROR) { 838 int asc, ascq; 839 int sense_key, error_code; 840 841 scsi_extract_sense(&csio.sense_data, 842 &error_code, 843 &sense_key, 844 &asc, &ascq); 845 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 846 scsi_sense_print(&csio); 847 } else { 848 xpt_print_path(periph->path); 849 printf("Synchronize cache failed, status " 850 "== 0x%x, scsi status == 0x%x\n", 851 csio.ccb_h.status, csio.scsi_status); 852 } 853 } 854 } 855 return (0); 856 } 857 858 static void 859 dainit(void) 860 { 861 cam_status status; 862 struct cam_path *path; 863 864 SLIST_INIT(&softc_list); 865 866 /* 867 * Install a global async callback. This callback will 868 * receive async callbacks like "new device found". 869 */ 870 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 871 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 872 873 if (status == CAM_REQ_CMP) { 874 struct ccb_setasync csa; 875 876 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 877 csa.ccb_h.func_code = XPT_SASYNC_CB; 878 csa.event_enable = AC_FOUND_DEVICE; 879 csa.callback = daasync; 880 csa.callback_arg = NULL; 881 xpt_action((union ccb *)&csa); 882 status = csa.ccb_h.status; 883 xpt_free_path(path); 884 } 885 886 if (status != CAM_REQ_CMP) { 887 printf("da: Failed to attach master async callback " 888 "due to status 0x%x!\n", status); 889 } else if (da_send_ordered) { 890 891 /* 892 * Schedule a periodic event to occasionally send an 893 * ordered tag to a device. 894 */ 895 timeout(dasendorderedtag, NULL, 896 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 897 898 /* Register our shutdown event handler */ 899 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 900 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 901 printf("dainit: shutdown event registration failed!\n"); 902 } 903 } 904 905 static void 906 daoninvalidate(struct cam_periph *periph) 907 { 908 int s; 909 struct da_softc *softc; 910 struct ccb_setasync csa; 911 912 softc = (struct da_softc *)periph->softc; 913 914 /* 915 * De-register any async callbacks. 916 */ 917 xpt_setup_ccb(&csa.ccb_h, periph->path, 918 /* priority */ 5); 919 csa.ccb_h.func_code = XPT_SASYNC_CB; 920 csa.event_enable = 0; 921 csa.callback = daasync; 922 csa.callback_arg = periph; 923 xpt_action((union ccb *)&csa); 924 925 softc->flags |= DA_FLAG_PACK_INVALID; 926 927 /* 928 * Although the oninvalidate() routines are always called at 929 * splsoftcam, we need to be at splbio() here to keep the buffer 930 * queue from being modified while we traverse it. 931 */ 932 s = splbio(); 933 934 /* 935 * Return all queued I/O with ENXIO. 936 * XXX Handle any transactions queued to the card 937 * with XPT_ABORT_CCB. 938 */ 939 bioq_flush(&softc->bio_queue, NULL, ENXIO); 940 splx(s); 941 942 SLIST_REMOVE(&softc_list, softc, da_softc, links); 943 944 disk_gone(softc->disk); 945 xpt_print_path(periph->path); 946 printf("lost device\n"); 947 } 948 949 static void 950 dacleanup(struct cam_periph *periph) 951 { 952 struct da_softc *softc; 953 954 softc = (struct da_softc *)periph->softc; 955 956 xpt_print_path(periph->path); 957 printf("removing device entry\n"); 958 /* 959 * If we can't free the sysctl tree, oh well... 960 */ 961 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 962 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 963 xpt_print_path(periph->path); 964 printf("can't remove sysctl context\n"); 965 } 966 disk_destroy(softc->disk); 967 free(softc, M_DEVBUF); 968 } 969 970 static void 971 daasync(void *callback_arg, u_int32_t code, 972 struct cam_path *path, void *arg) 973 { 974 struct cam_periph *periph; 975 976 periph = (struct cam_periph *)callback_arg; 977 switch (code) { 978 case AC_FOUND_DEVICE: 979 { 980 struct ccb_getdev *cgd; 981 cam_status status; 982 983 cgd = (struct ccb_getdev *)arg; 984 if (cgd == NULL) 985 break; 986 987 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 988 && SID_TYPE(&cgd->inq_data) != T_RBC 989 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 990 break; 991 992 /* 993 * Allocate a peripheral instance for 994 * this device and start the probe 995 * process. 996 */ 997 status = cam_periph_alloc(daregister, daoninvalidate, 998 dacleanup, dastart, 999 "da", CAM_PERIPH_BIO, 1000 cgd->ccb_h.path, daasync, 1001 AC_FOUND_DEVICE, cgd); 1002 1003 if (status != CAM_REQ_CMP 1004 && status != CAM_REQ_INPROG) 1005 printf("daasync: Unable to attach to new device " 1006 "due to status 0x%x\n", status); 1007 break; 1008 } 1009 case AC_SENT_BDR: 1010 case AC_BUS_RESET: 1011 { 1012 struct da_softc *softc; 1013 struct ccb_hdr *ccbh; 1014 int s; 1015 1016 softc = (struct da_softc *)periph->softc; 1017 s = splsoftcam(); 1018 /* 1019 * Don't fail on the expected unit attention 1020 * that will occur. 1021 */ 1022 softc->flags |= DA_FLAG_RETRY_UA; 1023 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1024 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1025 splx(s); 1026 /* FALLTHROUGH*/ 1027 } 1028 default: 1029 cam_periph_async(periph, code, path, arg); 1030 break; 1031 } 1032 } 1033 1034 static void 1035 dasysctlinit(void *context, int pending) 1036 { 1037 struct cam_periph *periph; 1038 struct da_softc *softc; 1039 char tmpstr[80], tmpstr2[80]; 1040 1041 periph = (struct cam_periph *)context; 1042 softc = (struct da_softc *)periph->softc; 1043 1044 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1045 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1046 1047 mtx_lock(&Giant); 1048 sysctl_ctx_init(&softc->sysctl_ctx); 1049 softc->flags |= DA_FLAG_SCTX_INIT; 1050 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1051 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1052 CTLFLAG_RD, 0, tmpstr); 1053 if (softc->sysctl_tree == NULL) { 1054 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1055 mtx_unlock(&Giant); 1056 return; 1057 } 1058 1059 /* 1060 * Now register the sysctl handler, so the user can the value on 1061 * the fly. 1062 */ 1063 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1064 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1065 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1066 "Minimum CDB size"); 1067 1068 mtx_unlock(&Giant); 1069 } 1070 1071 static int 1072 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1073 { 1074 int error, value; 1075 1076 value = *(int *)arg1; 1077 1078 error = sysctl_handle_int(oidp, &value, 0, req); 1079 1080 if ((error != 0) 1081 || (req->newptr == NULL)) 1082 return (error); 1083 1084 /* 1085 * Acceptable values here are 6, 10, 12 or 16. 1086 */ 1087 if (value < 6) 1088 value = 6; 1089 else if ((value > 6) 1090 && (value <= 10)) 1091 value = 10; 1092 else if ((value > 10) 1093 && (value <= 12)) 1094 value = 12; 1095 else if (value > 12) 1096 value = 16; 1097 1098 *(int *)arg1 = value; 1099 1100 return (0); 1101 } 1102 1103 static cam_status 1104 daregister(struct cam_periph *periph, void *arg) 1105 { 1106 int s; 1107 struct da_softc *softc; 1108 struct ccb_setasync csa; 1109 struct ccb_pathinq cpi; 1110 struct ccb_getdev *cgd; 1111 char tmpstr[80]; 1112 caddr_t match; 1113 1114 cgd = (struct ccb_getdev *)arg; 1115 if (periph == NULL) { 1116 printf("daregister: periph was NULL!!\n"); 1117 return(CAM_REQ_CMP_ERR); 1118 } 1119 1120 if (cgd == NULL) { 1121 printf("daregister: no getdev CCB, can't register device\n"); 1122 return(CAM_REQ_CMP_ERR); 1123 } 1124 1125 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1126 M_NOWAIT|M_ZERO); 1127 1128 if (softc == NULL) { 1129 printf("daregister: Unable to probe new device. " 1130 "Unable to allocate softc\n"); 1131 return(CAM_REQ_CMP_ERR); 1132 } 1133 1134 LIST_INIT(&softc->pending_ccbs); 1135 softc->state = DA_STATE_PROBE; 1136 bioq_init(&softc->bio_queue); 1137 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1138 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1139 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1140 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1141 1142 periph->softc = softc; 1143 1144 /* 1145 * See if this device has any quirks. 1146 */ 1147 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1148 (caddr_t)da_quirk_table, 1149 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1150 sizeof(*da_quirk_table), scsi_inquiry_match); 1151 1152 if (match != NULL) 1153 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1154 else 1155 softc->quirks = DA_Q_NONE; 1156 1157 /* Check if the SIM does not want 6 byte commands */ 1158 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1159 cpi.ccb_h.func_code = XPT_PATH_INQ; 1160 xpt_action((union ccb *)&cpi); 1161 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1162 softc->quirks |= DA_Q_NO_6_BYTE; 1163 1164 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1165 1166 /* 1167 * RBC devices don't have to support READ(6), only READ(10). 1168 */ 1169 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1170 softc->minimum_cmd_size = 10; 1171 else 1172 softc->minimum_cmd_size = 6; 1173 1174 /* 1175 * Load the user's default, if any. 1176 */ 1177 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1178 periph->unit_number); 1179 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1180 1181 /* 1182 * 6, 10, 12 and 16 are the currently permissible values. 1183 */ 1184 if (softc->minimum_cmd_size < 6) 1185 softc->minimum_cmd_size = 6; 1186 else if ((softc->minimum_cmd_size > 6) 1187 && (softc->minimum_cmd_size <= 10)) 1188 softc->minimum_cmd_size = 10; 1189 else if ((softc->minimum_cmd_size > 10) 1190 && (softc->minimum_cmd_size <= 12)) 1191 softc->minimum_cmd_size = 12; 1192 else if (softc->minimum_cmd_size > 12) 1193 softc->minimum_cmd_size = 16; 1194 1195 /* 1196 * Block our timeout handler while we 1197 * add this softc to the dev list. 1198 */ 1199 s = splsoftclock(); 1200 SLIST_INSERT_HEAD(&softc_list, softc, links); 1201 splx(s); 1202 1203 /* 1204 * Register this media as a disk 1205 */ 1206 1207 softc->disk = disk_alloc(); 1208 softc->disk->d_open = daopen; 1209 softc->disk->d_close = daclose; 1210 softc->disk->d_strategy = dastrategy; 1211 softc->disk->d_dump = dadump; 1212 softc->disk->d_name = "da"; 1213 softc->disk->d_drv1 = periph; 1214 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1215 softc->disk->d_unit = periph->unit_number; 1216 softc->disk->d_flags = DISKFLAG_NEEDSGIANT; 1217 disk_create(softc->disk, DISK_VERSION); 1218 1219 /* 1220 * Add async callbacks for bus reset and 1221 * bus device reset calls. I don't bother 1222 * checking if this fails as, in most cases, 1223 * the system will function just fine without 1224 * them and the only alternative would be to 1225 * not attach the device on failure. 1226 */ 1227 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1228 csa.ccb_h.func_code = XPT_SASYNC_CB; 1229 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1230 csa.callback = daasync; 1231 csa.callback_arg = periph; 1232 xpt_action((union ccb *)&csa); 1233 /* 1234 * Lock this peripheral until we are setup. 1235 * This first call can't block 1236 */ 1237 (void)cam_periph_lock(periph, PRIBIO); 1238 xpt_schedule(periph, /*priority*/5); 1239 1240 return(CAM_REQ_CMP); 1241 } 1242 1243 static void 1244 dastart(struct cam_periph *periph, union ccb *start_ccb) 1245 { 1246 struct da_softc *softc; 1247 1248 softc = (struct da_softc *)periph->softc; 1249 1250 1251 switch (softc->state) { 1252 case DA_STATE_NORMAL: 1253 { 1254 /* Pull a buffer from the queue and get going on it */ 1255 struct bio *bp; 1256 int s; 1257 1258 /* 1259 * See if there is a buf with work for us to do.. 1260 */ 1261 s = splbio(); 1262 bp = bioq_first(&softc->bio_queue); 1263 if (periph->immediate_priority <= periph->pinfo.priority) { 1264 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1265 ("queuing for immediate ccb\n")); 1266 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1267 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1268 periph_links.sle); 1269 periph->immediate_priority = CAM_PRIORITY_NONE; 1270 splx(s); 1271 wakeup(&periph->ccb_list); 1272 } else if (bp == NULL) { 1273 splx(s); 1274 xpt_release_ccb(start_ccb); 1275 } else { 1276 int oldspl; 1277 u_int8_t tag_code; 1278 1279 bioq_remove(&softc->bio_queue, bp); 1280 1281 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1282 softc->flags &= ~DA_FLAG_NEED_OTAG; 1283 softc->ordered_tag_count++; 1284 tag_code = MSG_ORDERED_Q_TAG; 1285 } else { 1286 tag_code = MSG_SIMPLE_Q_TAG; 1287 } 1288 scsi_read_write(&start_ccb->csio, 1289 /*retries*/da_retry_count, 1290 /*cbfcnp*/dadone, 1291 /*tag_action*/tag_code, 1292 /*read_op*/bp->bio_cmd == BIO_READ, 1293 /*byte2*/0, 1294 softc->minimum_cmd_size, 1295 /*lba*/bp->bio_pblkno, 1296 /*block_count*/bp->bio_bcount / 1297 softc->params.secsize, 1298 /*data_ptr*/ bp->bio_data, 1299 /*dxfer_len*/ bp->bio_bcount, 1300 /*sense_len*/SSD_FULL_SIZE, 1301 /*timeout*/da_default_timeout*1000); 1302 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1303 1304 /* 1305 * Block out any asyncronous callbacks 1306 * while we touch the pending ccb list. 1307 */ 1308 oldspl = splcam(); 1309 LIST_INSERT_HEAD(&softc->pending_ccbs, 1310 &start_ccb->ccb_h, periph_links.le); 1311 softc->outstanding_cmds++; 1312 splx(oldspl); 1313 1314 /* We expect a unit attention from this device */ 1315 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1316 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1317 softc->flags &= ~DA_FLAG_RETRY_UA; 1318 } 1319 1320 start_ccb->ccb_h.ccb_bp = bp; 1321 bp = bioq_first(&softc->bio_queue); 1322 splx(s); 1323 1324 xpt_action(start_ccb); 1325 } 1326 1327 if (bp != NULL) { 1328 /* Have more work to do, so ensure we stay scheduled */ 1329 xpt_schedule(periph, /* XXX priority */1); 1330 } 1331 break; 1332 } 1333 case DA_STATE_PROBE: 1334 { 1335 struct ccb_scsiio *csio; 1336 struct scsi_read_capacity_data *rcap; 1337 1338 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1339 M_SCSIDA, 1340 M_NOWAIT|M_ZERO); 1341 if (rcap == NULL) { 1342 printf("dastart: Couldn't malloc read_capacity data\n"); 1343 /* da_free_periph??? */ 1344 break; 1345 } 1346 csio = &start_ccb->csio; 1347 scsi_read_capacity(csio, 1348 /*retries*/4, 1349 dadone, 1350 MSG_SIMPLE_Q_TAG, 1351 rcap, 1352 SSD_FULL_SIZE, 1353 /*timeout*/5000); 1354 start_ccb->ccb_h.ccb_bp = NULL; 1355 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1356 xpt_action(start_ccb); 1357 break; 1358 } 1359 case DA_STATE_PROBE2: 1360 { 1361 struct ccb_scsiio *csio; 1362 struct scsi_read_capacity_data_long *rcaplong; 1363 1364 rcaplong = (struct scsi_read_capacity_data_long *) 1365 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); 1366 if (rcaplong == NULL) { 1367 printf("dastart: Couldn't malloc read_capacity data\n"); 1368 /* da_free_periph??? */ 1369 break; 1370 } 1371 csio = &start_ccb->csio; 1372 scsi_read_capacity_16(csio, 1373 /*retries*/ 4, 1374 /*cbfcnp*/ dadone, 1375 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1376 /*lba*/ 0, 1377 /*reladr*/ 0, 1378 /*pmi*/ 0, 1379 rcaplong, 1380 /*sense_len*/ SSD_FULL_SIZE, 1381 /*timeout*/ 60000); 1382 start_ccb->ccb_h.ccb_bp = NULL; 1383 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1384 xpt_action(start_ccb); 1385 break; 1386 } 1387 } 1388 } 1389 1390 static int 1391 cmd6workaround(union ccb *ccb) 1392 { 1393 struct scsi_rw_6 cmd6; 1394 struct scsi_rw_10 *cmd10; 1395 struct da_softc *softc; 1396 u_int8_t *cdb; 1397 int frozen; 1398 1399 cdb = ccb->csio.cdb_io.cdb_bytes; 1400 1401 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1402 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1403 (*cdb != READ_6 && *cdb != WRITE_6)) 1404 return 0; 1405 1406 xpt_print_path(ccb->ccb_h.path); 1407 printf("READ(6)/WRITE(6) not supported, " 1408 "increasing minimum_cmd_size to 10.\n"); 1409 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1410 softc->minimum_cmd_size = 10; 1411 1412 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1413 cmd10 = (struct scsi_rw_10 *)cdb; 1414 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1415 cmd10->byte2 = 0; 1416 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1417 cmd10->reserved = 0; 1418 scsi_ulto2b(cmd6.length, cmd10->length); 1419 cmd10->control = cmd6.control; 1420 ccb->csio.cdb_len = sizeof(*cmd10); 1421 1422 /* Requeue request, unfreezing queue if necessary */ 1423 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1424 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1425 xpt_action(ccb); 1426 if (frozen) { 1427 cam_release_devq(ccb->ccb_h.path, 1428 /*relsim_flags*/0, 1429 /*reduction*/0, 1430 /*timeout*/0, 1431 /*getcount_only*/0); 1432 } 1433 return (ERESTART); 1434 } 1435 1436 static void 1437 dadone(struct cam_periph *periph, union ccb *done_ccb) 1438 { 1439 struct da_softc *softc; 1440 struct ccb_scsiio *csio; 1441 1442 softc = (struct da_softc *)periph->softc; 1443 csio = &done_ccb->csio; 1444 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1445 case DA_CCB_BUFFER_IO: 1446 { 1447 struct bio *bp; 1448 int oldspl; 1449 1450 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1451 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1452 int error; 1453 int s; 1454 int sf; 1455 1456 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1457 sf = SF_RETRY_UA; 1458 else 1459 sf = 0; 1460 1461 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1462 if (error == ERESTART) { 1463 /* 1464 * A retry was scheuled, so 1465 * just return. 1466 */ 1467 return; 1468 } 1469 if (error != 0) { 1470 1471 s = splbio(); 1472 1473 if (error == ENXIO) { 1474 /* 1475 * Catastrophic error. Mark our pack as 1476 * invalid. 1477 */ 1478 /* XXX See if this is really a media 1479 * change first. 1480 */ 1481 xpt_print_path(periph->path); 1482 printf("Invalidating pack\n"); 1483 softc->flags |= DA_FLAG_PACK_INVALID; 1484 } 1485 1486 /* 1487 * return all queued I/O with EIO, so that 1488 * the client can retry these I/Os in the 1489 * proper order should it attempt to recover. 1490 */ 1491 bioq_flush(&softc->bio_queue, NULL, EIO); 1492 splx(s); 1493 bp->bio_error = error; 1494 bp->bio_resid = bp->bio_bcount; 1495 bp->bio_flags |= BIO_ERROR; 1496 } else { 1497 bp->bio_resid = csio->resid; 1498 bp->bio_error = 0; 1499 if (bp->bio_resid != 0) 1500 bp->bio_flags |= BIO_ERROR; 1501 } 1502 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1503 cam_release_devq(done_ccb->ccb_h.path, 1504 /*relsim_flags*/0, 1505 /*reduction*/0, 1506 /*timeout*/0, 1507 /*getcount_only*/0); 1508 } else { 1509 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1510 panic("REQ_CMP with QFRZN"); 1511 bp->bio_resid = csio->resid; 1512 if (csio->resid > 0) 1513 bp->bio_flags |= BIO_ERROR; 1514 } 1515 1516 /* 1517 * Block out any asyncronous callbacks 1518 * while we touch the pending ccb list. 1519 */ 1520 oldspl = splcam(); 1521 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1522 softc->outstanding_cmds--; 1523 if (softc->outstanding_cmds == 0) 1524 softc->flags |= DA_FLAG_WENT_IDLE; 1525 splx(oldspl); 1526 1527 biodone(bp); 1528 break; 1529 } 1530 case DA_CCB_PROBE: 1531 case DA_CCB_PROBE2: 1532 { 1533 struct scsi_read_capacity_data *rdcap; 1534 struct scsi_read_capacity_data_long *rcaplong; 1535 char announce_buf[80]; 1536 1537 rdcap = NULL; 1538 rcaplong = NULL; 1539 if (softc->state == DA_STATE_PROBE) 1540 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1541 else 1542 rcaplong = (struct scsi_read_capacity_data_long *) 1543 csio->data_ptr; 1544 1545 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1546 struct disk_params *dp; 1547 uint32_t block_size; 1548 uint64_t maxsector; 1549 1550 if (softc->state == DA_STATE_PROBE) { 1551 block_size = scsi_4btoul(rdcap->length); 1552 maxsector = scsi_4btoul(rdcap->addr); 1553 1554 /* 1555 * According to SBC-2, if the standard 10 1556 * byte READ CAPACITY command returns 2^32, 1557 * we should issue the 16 byte version of 1558 * the command, since the device in question 1559 * has more sectors than can be represented 1560 * with the short version of the command. 1561 */ 1562 if (maxsector == 0xffffffff) { 1563 softc->state = DA_STATE_PROBE2; 1564 free(rdcap, M_SCSIDA); 1565 xpt_release_ccb(done_ccb); 1566 xpt_schedule(periph, /*priority*/5); 1567 return; 1568 } 1569 } else { 1570 block_size = scsi_4btoul(rcaplong->length); 1571 maxsector = scsi_8btou64(rcaplong->addr); 1572 } 1573 1574 /* 1575 * Because GEOM code just will panic us if we 1576 * give them an 'illegal' value we'll avoid that 1577 * here. 1578 */ 1579 if (block_size >= MAXPHYS || block_size == 0) { 1580 xpt_print_path(periph->path); 1581 printf("unsupportable block size %ju\n", 1582 (uintmax_t) block_size); 1583 announce_buf[0] = '\0'; 1584 cam_periph_invalidate(periph); 1585 } else { 1586 dasetgeom(periph, block_size, maxsector); 1587 dp = &softc->params; 1588 snprintf(announce_buf, sizeof(announce_buf), 1589 "%juMB (%ju %u byte sectors: %dH %dS/T " 1590 "%dC)", (uintmax_t) 1591 (((uintmax_t)dp->secsize * 1592 dp->sectors) / (1024*1024)), 1593 (uintmax_t)dp->sectors, 1594 dp->secsize, dp->heads, 1595 dp->secs_per_track, dp->cylinders); 1596 } 1597 } else { 1598 int error; 1599 1600 announce_buf[0] = '\0'; 1601 1602 /* 1603 * Retry any UNIT ATTENTION type errors. They 1604 * are expected at boot. 1605 */ 1606 error = daerror(done_ccb, CAM_RETRY_SELTO, 1607 SF_RETRY_UA|SF_NO_PRINT); 1608 if (error == ERESTART) { 1609 /* 1610 * A retry was scheuled, so 1611 * just return. 1612 */ 1613 return; 1614 } else if (error != 0) { 1615 struct scsi_sense_data *sense; 1616 int asc, ascq; 1617 int sense_key, error_code; 1618 int have_sense; 1619 cam_status status; 1620 struct ccb_getdev cgd; 1621 1622 /* Don't wedge this device's queue */ 1623 status = done_ccb->ccb_h.status; 1624 if ((status & CAM_DEV_QFRZN) != 0) 1625 cam_release_devq(done_ccb->ccb_h.path, 1626 /*relsim_flags*/0, 1627 /*reduction*/0, 1628 /*timeout*/0, 1629 /*getcount_only*/0); 1630 1631 1632 xpt_setup_ccb(&cgd.ccb_h, 1633 done_ccb->ccb_h.path, 1634 /* priority */ 1); 1635 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1636 xpt_action((union ccb *)&cgd); 1637 1638 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1639 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1640 || ((status & CAM_AUTOSNS_VALID) == 0)) 1641 have_sense = FALSE; 1642 else 1643 have_sense = TRUE; 1644 1645 if (have_sense) { 1646 sense = &csio->sense_data; 1647 scsi_extract_sense(sense, &error_code, 1648 &sense_key, 1649 &asc, &ascq); 1650 } 1651 /* 1652 * Attach to anything that claims to be a 1653 * direct access or optical disk device, 1654 * as long as it doesn't return a "Logical 1655 * unit not supported" (0x25) error. 1656 */ 1657 if ((have_sense) && (asc != 0x25) 1658 && (error_code == SSD_CURRENT_ERROR)) { 1659 const char *sense_key_desc; 1660 const char *asc_desc; 1661 1662 scsi_sense_desc(sense_key, asc, ascq, 1663 &cgd.inq_data, 1664 &sense_key_desc, 1665 &asc_desc); 1666 snprintf(announce_buf, 1667 sizeof(announce_buf), 1668 "Attempt to query device " 1669 "size failed: %s, %s", 1670 sense_key_desc, 1671 asc_desc); 1672 } else { 1673 if (have_sense) 1674 scsi_sense_print( 1675 &done_ccb->csio); 1676 else { 1677 xpt_print_path(periph->path); 1678 printf("got CAM status %#x\n", 1679 done_ccb->ccb_h.status); 1680 } 1681 1682 xpt_print_path(periph->path); 1683 printf("fatal error, failed" 1684 " to attach to device\n"); 1685 1686 /* 1687 * Free up resources. 1688 */ 1689 cam_periph_invalidate(periph); 1690 } 1691 } 1692 } 1693 free(csio->data_ptr, M_SCSIDA); 1694 if (announce_buf[0] != '\0') { 1695 xpt_announce_periph(periph, announce_buf); 1696 /* 1697 * Create our sysctl variables, now that we know 1698 * we have successfully attached. 1699 */ 1700 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1701 } 1702 softc->state = DA_STATE_NORMAL; 1703 /* 1704 * Since our peripheral may be invalidated by an error 1705 * above or an external event, we must release our CCB 1706 * before releasing the probe lock on the peripheral. 1707 * The peripheral will only go away once the last lock 1708 * is removed, and we need it around for the CCB release 1709 * operation. 1710 */ 1711 xpt_release_ccb(done_ccb); 1712 cam_periph_unlock(periph); 1713 return; 1714 } 1715 case DA_CCB_WAITING: 1716 { 1717 /* Caller will release the CCB */ 1718 wakeup(&done_ccb->ccb_h.cbfcnp); 1719 return; 1720 } 1721 case DA_CCB_DUMP: 1722 /* No-op. We're polling */ 1723 return; 1724 default: 1725 break; 1726 } 1727 xpt_release_ccb(done_ccb); 1728 } 1729 1730 static int 1731 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1732 { 1733 struct da_softc *softc; 1734 struct cam_periph *periph; 1735 int error; 1736 1737 periph = xpt_path_periph(ccb->ccb_h.path); 1738 softc = (struct da_softc *)periph->softc; 1739 1740 /* 1741 * Automatically detect devices that do not support 1742 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1743 */ 1744 error = 0; 1745 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1746 error = cmd6workaround(ccb); 1747 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1748 CAM_SCSI_STATUS_ERROR) 1749 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1750 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1751 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1752 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1753 int sense_key, error_code, asc, ascq; 1754 1755 scsi_extract_sense(&ccb->csio.sense_data, 1756 &error_code, &sense_key, &asc, &ascq); 1757 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1758 error = cmd6workaround(ccb); 1759 } 1760 if (error == ERESTART) 1761 return (ERESTART); 1762 1763 /* 1764 * XXX 1765 * Until we have a better way of doing pack validation, 1766 * don't treat UAs as errors. 1767 */ 1768 sense_flags |= SF_RETRY_UA; 1769 return(cam_periph_error(ccb, cam_flags, sense_flags, 1770 &softc->saved_ccb)); 1771 } 1772 1773 static void 1774 daprevent(struct cam_periph *periph, int action) 1775 { 1776 struct da_softc *softc; 1777 union ccb *ccb; 1778 int error; 1779 1780 softc = (struct da_softc *)periph->softc; 1781 1782 if (((action == PR_ALLOW) 1783 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1784 || ((action == PR_PREVENT) 1785 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1786 return; 1787 } 1788 1789 ccb = cam_periph_getccb(periph, /*priority*/1); 1790 1791 scsi_prevent(&ccb->csio, 1792 /*retries*/1, 1793 /*cbcfp*/dadone, 1794 MSG_SIMPLE_Q_TAG, 1795 action, 1796 SSD_FULL_SIZE, 1797 5000); 1798 1799 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1800 SF_RETRY_UA, softc->disk->d_devstat); 1801 1802 if (error == 0) { 1803 if (action == PR_ALLOW) 1804 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1805 else 1806 softc->flags |= DA_FLAG_PACK_LOCKED; 1807 } 1808 1809 xpt_release_ccb(ccb); 1810 } 1811 1812 static int 1813 dagetcapacity(struct cam_periph *periph) 1814 { 1815 struct da_softc *softc; 1816 union ccb *ccb; 1817 struct scsi_read_capacity_data *rcap; 1818 struct scsi_read_capacity_data_long *rcaplong; 1819 uint32_t block_len; 1820 uint64_t maxsector; 1821 int error; 1822 u_int32_t sense_flags; 1823 1824 softc = (struct da_softc *)periph->softc; 1825 block_len = 0; 1826 maxsector = 0; 1827 error = 0; 1828 sense_flags = SF_RETRY_UA; 1829 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1830 sense_flags |= SF_NO_PRINT; 1831 1832 /* Do a read capacity */ 1833 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1834 M_SCSIDA, 1835 M_WAITOK); 1836 1837 ccb = cam_periph_getccb(periph, /*priority*/1); 1838 scsi_read_capacity(&ccb->csio, 1839 /*retries*/4, 1840 /*cbfncp*/dadone, 1841 MSG_SIMPLE_Q_TAG, 1842 rcap, 1843 SSD_FULL_SIZE, 1844 /*timeout*/60000); 1845 ccb->ccb_h.ccb_bp = NULL; 1846 1847 error = cam_periph_runccb(ccb, daerror, 1848 /*cam_flags*/CAM_RETRY_SELTO, 1849 sense_flags, 1850 softc->disk->d_devstat); 1851 1852 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1853 cam_release_devq(ccb->ccb_h.path, 1854 /*relsim_flags*/0, 1855 /*reduction*/0, 1856 /*timeout*/0, 1857 /*getcount_only*/0); 1858 1859 if (error == 0) { 1860 block_len = scsi_4btoul(rcap->length); 1861 maxsector = scsi_4btoul(rcap->addr); 1862 1863 if (maxsector != 0xffffffff) 1864 goto done; 1865 } else 1866 goto done; 1867 1868 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1869 1870 scsi_read_capacity_16(&ccb->csio, 1871 /*retries*/ 4, 1872 /*cbfcnp*/ dadone, 1873 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1874 /*lba*/ 0, 1875 /*reladr*/ 0, 1876 /*pmi*/ 0, 1877 rcaplong, 1878 /*sense_len*/ SSD_FULL_SIZE, 1879 /*timeout*/ 60000); 1880 ccb->ccb_h.ccb_bp = NULL; 1881 1882 error = cam_periph_runccb(ccb, daerror, 1883 /*cam_flags*/CAM_RETRY_SELTO, 1884 sense_flags, 1885 softc->disk->d_devstat); 1886 1887 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1888 cam_release_devq(ccb->ccb_h.path, 1889 /*relsim_flags*/0, 1890 /*reduction*/0, 1891 /*timeout*/0, 1892 /*getcount_only*/0); 1893 1894 if (error == 0) { 1895 block_len = scsi_4btoul(rcaplong->length); 1896 maxsector = scsi_8btou64(rcaplong->addr); 1897 } 1898 1899 done: 1900 1901 if (error == 0) 1902 dasetgeom(periph, block_len, maxsector); 1903 1904 xpt_release_ccb(ccb); 1905 1906 free(rcap, M_SCSIDA); 1907 1908 return (error); 1909 } 1910 1911 static void 1912 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1913 { 1914 struct ccb_calc_geometry ccg; 1915 struct da_softc *softc; 1916 struct disk_params *dp; 1917 1918 softc = (struct da_softc *)periph->softc; 1919 1920 dp = &softc->params; 1921 dp->secsize = block_len; 1922 dp->sectors = maxsector + 1; 1923 /* 1924 * Have the controller provide us with a geometry 1925 * for this disk. The only time the geometry 1926 * matters is when we boot and the controller 1927 * is the only one knowledgeable enough to come 1928 * up with something that will make this a bootable 1929 * device. 1930 */ 1931 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1932 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1933 ccg.block_size = dp->secsize; 1934 ccg.volume_size = dp->sectors; 1935 ccg.heads = 0; 1936 ccg.secs_per_track = 0; 1937 ccg.cylinders = 0; 1938 xpt_action((union ccb*)&ccg); 1939 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1940 /* 1941 * We don't know what went wrong here- but just pick 1942 * a geometry so we don't have nasty things like divide 1943 * by zero. 1944 */ 1945 dp->heads = 255; 1946 dp->secs_per_track = 255; 1947 dp->cylinders = dp->sectors / (255 * 255); 1948 if (dp->cylinders == 0) { 1949 dp->cylinders = 1; 1950 } 1951 } else { 1952 dp->heads = ccg.heads; 1953 dp->secs_per_track = ccg.secs_per_track; 1954 dp->cylinders = ccg.cylinders; 1955 } 1956 } 1957 1958 static void 1959 dasendorderedtag(void *arg) 1960 { 1961 struct da_softc *softc; 1962 int s; 1963 if (da_send_ordered) { 1964 for (softc = SLIST_FIRST(&softc_list); 1965 softc != NULL; 1966 softc = SLIST_NEXT(softc, links)) { 1967 s = splsoftcam(); 1968 if ((softc->ordered_tag_count == 0) 1969 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1970 softc->flags |= DA_FLAG_NEED_OTAG; 1971 } 1972 if (softc->outstanding_cmds > 0) 1973 softc->flags &= ~DA_FLAG_WENT_IDLE; 1974 1975 softc->ordered_tag_count = 0; 1976 splx(s); 1977 } 1978 /* Queue us up again */ 1979 timeout(dasendorderedtag, NULL, 1980 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1981 } 1982 } 1983 1984 /* 1985 * Step through all DA peripheral drivers, and if the device is still open, 1986 * sync the disk cache to physical media. 1987 */ 1988 static void 1989 dashutdown(void * arg, int howto) 1990 { 1991 struct cam_periph *periph; 1992 struct da_softc *softc; 1993 1994 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 1995 union ccb ccb; 1996 softc = (struct da_softc *)periph->softc; 1997 1998 /* 1999 * We only sync the cache if the drive is still open, and 2000 * if the drive is capable of it.. 2001 */ 2002 if (((softc->flags & DA_FLAG_OPEN) == 0) 2003 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 2004 continue; 2005 2006 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2007 2008 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2009 scsi_synchronize_cache(&ccb.csio, 2010 /*retries*/1, 2011 /*cbfcnp*/dadone, 2012 MSG_SIMPLE_Q_TAG, 2013 /*begin_lba*/0, /* whole disk */ 2014 /*lb_count*/0, 2015 SSD_FULL_SIZE, 2016 60 * 60 * 1000); 2017 2018 xpt_polled_action(&ccb); 2019 2020 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2021 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2022 CAM_SCSI_STATUS_ERROR) 2023 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2024 int error_code, sense_key, asc, ascq; 2025 2026 scsi_extract_sense(&ccb.csio.sense_data, 2027 &error_code, &sense_key, 2028 &asc, &ascq); 2029 2030 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2031 scsi_sense_print(&ccb.csio); 2032 } else { 2033 xpt_print_path(periph->path); 2034 printf("Synchronize cache failed, status " 2035 "== 0x%x, scsi status == 0x%x\n", 2036 ccb.ccb_h.status, ccb.csio.scsi_status); 2037 } 2038 } 2039 2040 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2041 cam_release_devq(ccb.ccb_h.path, 2042 /*relsim_flags*/0, 2043 /*reduction*/0, 2044 /*timeout*/0, 2045 /*getcount_only*/0); 2046 2047 } 2048 } 2049 2050 #else /* !_KERNEL */ 2051 2052 /* 2053 * XXX This is only left out of the kernel build to silence warnings. If, 2054 * for some reason this function is used in the kernel, the ifdefs should 2055 * be moved so it is included both in the kernel and userland. 2056 */ 2057 void 2058 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2059 void (*cbfcnp)(struct cam_periph *, union ccb *), 2060 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2061 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2062 u_int32_t timeout) 2063 { 2064 struct scsi_format_unit *scsi_cmd; 2065 2066 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2067 scsi_cmd->opcode = FORMAT_UNIT; 2068 scsi_cmd->byte2 = byte2; 2069 scsi_ulto2b(ileave, scsi_cmd->interleave); 2070 2071 cam_fill_csio(csio, 2072 retries, 2073 cbfcnp, 2074 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2075 tag_action, 2076 data_ptr, 2077 dxfer_len, 2078 sense_len, 2079 sizeof(*scsi_cmd), 2080 timeout); 2081 } 2082 2083 #endif /* _KERNEL */
Cache object: dd6d2c380c52c9435a29b1ddc9d57525
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