Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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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/7.3/sys/cam/scsi/scsi_da.c 189640 2009-03-10 18:57:10Z jhb $"); 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 #include <sys/lock.h> 41 #include <sys/mutex.h> 42 #include <sys/conf.h> 43 #include <sys/devicestat.h> 44 #include <sys/eventhandler.h> 45 #include <sys/malloc.h> 46 #include <sys/cons.h> 47 #include <geom/geom_disk.h> 48 #endif /* _KERNEL */ 49 50 #ifndef _KERNEL 51 #include <stdio.h> 52 #include <string.h> 53 #endif /* _KERNEL */ 54 55 #include <cam/cam.h> 56 #include <cam/cam_ccb.h> 57 #include <cam/cam_periph.h> 58 #include <cam/cam_xpt_periph.h> 59 #include <cam/cam_sim.h> 60 61 #include <cam/scsi/scsi_message.h> 62 63 #ifndef _KERNEL 64 #include <cam/scsi/scsi_da.h> 65 #endif /* !_KERNEL */ 66 67 #ifdef _KERNEL 68 typedef enum { 69 DA_STATE_PROBE, 70 DA_STATE_PROBE2, 71 DA_STATE_NORMAL 72 } da_state; 73 74 typedef enum { 75 DA_FLAG_PACK_INVALID = 0x001, 76 DA_FLAG_NEW_PACK = 0x002, 77 DA_FLAG_PACK_LOCKED = 0x004, 78 DA_FLAG_PACK_REMOVABLE = 0x008, 79 DA_FLAG_TAGGED_QUEUING = 0x010, 80 DA_FLAG_NEED_OTAG = 0x020, 81 DA_FLAG_WENT_IDLE = 0x040, 82 DA_FLAG_RETRY_UA = 0x080, 83 DA_FLAG_OPEN = 0x100, 84 DA_FLAG_SCTX_INIT = 0x200 85 } da_flags; 86 87 typedef enum { 88 DA_Q_NONE = 0x00, 89 DA_Q_NO_SYNC_CACHE = 0x01, 90 DA_Q_NO_6_BYTE = 0x02, 91 DA_Q_NO_PREVENT = 0x04 92 } da_quirks; 93 94 typedef enum { 95 DA_CCB_PROBE = 0x01, 96 DA_CCB_PROBE2 = 0x02, 97 DA_CCB_BUFFER_IO = 0x03, 98 DA_CCB_WAITING = 0x04, 99 DA_CCB_DUMP = 0x05, 100 DA_CCB_TYPE_MASK = 0x0F, 101 DA_CCB_RETRY_UA = 0x10 102 } da_ccb_state; 103 104 /* Offsets into our private area for storing information */ 105 #define ccb_state ppriv_field0 106 #define ccb_bp ppriv_ptr1 107 108 struct disk_params { 109 u_int8_t heads; 110 u_int32_t cylinders; 111 u_int8_t secs_per_track; 112 u_int32_t secsize; /* Number of bytes/sector */ 113 u_int64_t sectors; /* total number sectors */ 114 }; 115 116 struct da_softc { 117 struct bio_queue_head bio_queue; 118 SLIST_ENTRY(da_softc) links; 119 LIST_HEAD(, ccb_hdr) pending_ccbs; 120 da_state state; 121 da_flags flags; 122 da_quirks quirks; 123 int minimum_cmd_size; 124 int ordered_tag_count; 125 int outstanding_cmds; 126 struct disk_params params; 127 struct disk *disk; 128 union ccb saved_ccb; 129 struct task sysctl_task; 130 struct sysctl_ctx_list sysctl_ctx; 131 struct sysctl_oid *sysctl_tree; 132 struct callout sendordered_c; 133 }; 134 135 struct da_quirk_entry { 136 struct scsi_inquiry_pattern inq_pat; 137 da_quirks quirks; 138 }; 139 140 static const char quantum[] = "QUANTUM"; 141 static const char microp[] = "MICROP"; 142 143 static struct da_quirk_entry da_quirk_table[] = 144 { 145 /* SPI, FC devices */ 146 { 147 /* 148 * Fujitsu M2513A MO drives. 149 * Tested devices: M2513A2 firmware versions 1200 & 1300. 150 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 151 * Reported by: W.Scholten <whs@xs4all.nl> 152 */ 153 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 154 /*quirks*/ DA_Q_NO_SYNC_CACHE 155 }, 156 { 157 /* See above. */ 158 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 159 /*quirks*/ DA_Q_NO_SYNC_CACHE 160 }, 161 { 162 /* 163 * This particular Fujitsu drive doesn't like the 164 * synchronize cache command. 165 * Reported by: Tom Jackson <toj@gorilla.net> 166 */ 167 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 168 /*quirks*/ DA_Q_NO_SYNC_CACHE 169 }, 170 { 171 /* 172 * This drive doesn't like the synchronize cache command 173 * either. Reported by: Matthew Jacob <mjacob@feral.com> 174 * in NetBSD PR kern/6027, August 24, 1998. 175 */ 176 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 177 /*quirks*/ DA_Q_NO_SYNC_CACHE 178 }, 179 { 180 /* 181 * This drive doesn't like the synchronize cache command 182 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 183 * (PR 8882). 184 */ 185 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 186 /*quirks*/ DA_Q_NO_SYNC_CACHE 187 }, 188 { 189 /* 190 * Doesn't like the synchronize cache command. 191 * Reported by: Blaz Zupan <blaz@gold.amis.net> 192 */ 193 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 194 /*quirks*/ DA_Q_NO_SYNC_CACHE 195 }, 196 { 197 /* 198 * Doesn't like the synchronize cache command. 199 * Reported by: Blaz Zupan <blaz@gold.amis.net> 200 */ 201 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 202 /*quirks*/ DA_Q_NO_SYNC_CACHE 203 }, 204 { 205 /* 206 * Doesn't like the synchronize cache command. 207 */ 208 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 209 /*quirks*/ DA_Q_NO_SYNC_CACHE 210 }, 211 { 212 /* 213 * Doesn't like the synchronize cache command. 214 * Reported by: walter@pelissero.de 215 */ 216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 217 /*quirks*/ DA_Q_NO_SYNC_CACHE 218 }, 219 { 220 /* 221 * Doesn't work correctly with 6 byte reads/writes. 222 * Returns illegal request, and points to byte 9 of the 223 * 6-byte CDB. 224 * Reported by: Adam McDougall <bsdx@spawnet.com> 225 */ 226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 227 /*quirks*/ DA_Q_NO_6_BYTE 228 }, 229 { 230 /* See above. */ 231 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 232 /*quirks*/ DA_Q_NO_6_BYTE 233 }, 234 { 235 /* 236 * Doesn't like the synchronize cache command. 237 * Reported by: walter@pelissero.de 238 */ 239 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 240 /*quirks*/ DA_Q_NO_SYNC_CACHE 241 }, 242 { 243 /* 244 * The CISS RAID controllers do not support SYNC_CACHE 245 */ 246 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 247 /*quirks*/ DA_Q_NO_SYNC_CACHE 248 }, 249 /* USB mass storage devices supported by umass(4) */ 250 { 251 /* 252 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 253 * PR: kern/51675 254 */ 255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 256 /*quirks*/ DA_Q_NO_SYNC_CACHE 257 }, 258 { 259 /* 260 * Power Quotient Int. (PQI) USB flash key 261 * PR: kern/53067 262 */ 263 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 264 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 265 }, 266 { 267 /* 268 * Creative Nomad MUVO mp3 player (USB) 269 * PR: kern/53094 270 */ 271 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 272 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 273 }, 274 { 275 /* 276 * Jungsoft NEXDISK USB flash key 277 * PR: kern/54737 278 */ 279 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 280 /*quirks*/ DA_Q_NO_SYNC_CACHE 281 }, 282 { 283 /* 284 * FreeDik USB Mini Data Drive 285 * PR: kern/54786 286 */ 287 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 288 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 289 }, 290 { 291 /* 292 * Sigmatel USB Flash MP3 Player 293 * PR: kern/57046 294 */ 295 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 296 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 297 }, 298 { 299 /* 300 * Neuros USB Digital Audio Computer 301 * PR: kern/63645 302 */ 303 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 304 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 305 }, 306 { 307 /* 308 * SEAGRAND NP-900 MP3 Player 309 * PR: kern/64563 310 */ 311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 312 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 313 }, 314 { 315 /* 316 * iRiver iFP MP3 player (with UMS Firmware) 317 * PR: kern/54881, i386/63941, kern/66124 318 */ 319 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 320 /*quirks*/ DA_Q_NO_SYNC_CACHE 321 }, 322 { 323 /* 324 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 325 * PR: kern/70158 326 */ 327 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 328 /*quirks*/ DA_Q_NO_SYNC_CACHE 329 }, 330 { 331 /* 332 * ZICPlay USB MP3 Player with FM 333 * PR: kern/75057 334 */ 335 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 336 /*quirks*/ DA_Q_NO_SYNC_CACHE 337 }, 338 { 339 /* 340 * TEAC USB floppy mechanisms 341 */ 342 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 343 /*quirks*/ DA_Q_NO_SYNC_CACHE 344 }, 345 { 346 /* 347 * Kingston DataTraveler II+ USB Pen-Drive. 348 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 349 */ 350 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", 351 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 352 }, 353 { 354 /* 355 * Motorola E398 Mobile Phone (TransFlash memory card). 356 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 357 * PR: usb/89889 358 */ 359 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 360 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 361 }, 362 { 363 /* 364 * Qware BeatZkey! Pro 365 * PR: usb/79164 366 */ 367 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 368 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 369 }, 370 { 371 /* 372 * Time DPA20B 1GB MP3 Player 373 * PR: usb/81846 374 */ 375 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 376 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 377 }, 378 { 379 /* 380 * Samsung USB key 128Mb 381 * PR: usb/90081 382 */ 383 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 384 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 385 }, 386 { 387 /* 388 * Kingston DataTraveler 2.0 USB Flash memory. 389 * PR: usb/89196 390 */ 391 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 392 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 393 }, 394 { 395 /* 396 * Creative MUVO Slim mp3 player (USB) 397 * PR: usb/86131 398 */ 399 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 400 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 401 }, 402 { 403 /* 404 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 405 * PR: usb/80487 406 */ 407 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 408 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 409 }, 410 { 411 /* 412 * SanDisk Micro Cruzer 128MB 413 * PR: usb/75970 414 */ 415 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 416 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 417 }, 418 { 419 /* 420 * TOSHIBA TransMemory USB sticks 421 * PR: kern/94660 422 */ 423 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 424 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 425 }, 426 { 427 /* 428 * PNY USB Flash keys 429 * PR: usb/75578, usb/72344, usb/65436 430 */ 431 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 432 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 433 }, 434 { 435 /* 436 * Genesys 6-in-1 Card Reader 437 * PR: usb/94647 438 */ 439 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 440 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 441 }, 442 { 443 /* 444 * Rekam Digital CAMERA 445 * PR: usb/98713 446 */ 447 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 448 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 449 }, 450 { 451 /* 452 * iRiver H10 MP3 player 453 * PR: usb/102547 454 */ 455 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 456 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 457 }, 458 { 459 /* 460 * iRiver U10 MP3 player 461 * PR: usb/92306 462 */ 463 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", 464 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 465 }, 466 { 467 /* 468 * X-Micro Flash Disk 469 * PR: usb/96901 470 */ 471 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", 472 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 473 }, 474 { 475 /* 476 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 477 * PR: usb/96546 478 */ 479 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 480 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 481 }, 482 { 483 /* 484 * Denver MP3 player 485 * PR: usb/107101 486 */ 487 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 488 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 489 }, 490 { 491 /* 492 * Philips USB Key Audio KEY013 493 * PR: usb/68412 494 */ 495 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, 496 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 497 }, 498 { 499 /* 500 * JNC MP3 Player 501 * PR: usb/94439 502 */ 503 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", 504 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 505 }, 506 { 507 /* 508 * SAMSUNG MP0402H 509 * PR: usb/108427 510 */ 511 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, 512 /*quirks*/ DA_Q_NO_SYNC_CACHE 513 }, 514 { 515 /* 516 * I/O Magic USB flash - Giga Bank 517 * PR: usb/108810 518 */ 519 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, 520 /*quirks*/ DA_Q_NO_SYNC_CACHE 521 }, 522 { 523 /* 524 * JoyFly 128mb USB Flash Drive 525 * PR: 96133 526 */ 527 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", 528 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 529 }, 530 { 531 /* 532 * ChipsBnk usb stick 533 * PR: 103702 534 */ 535 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", 536 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 537 }, 538 { 539 /* 540 * Samsung YP-U3 mp3-player 541 * PR: 125398 542 */ 543 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3", 544 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 545 }, 546 { 547 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*", 548 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 549 } 550 }; 551 552 static disk_strategy_t dastrategy; 553 static dumper_t dadump; 554 static periph_init_t dainit; 555 static void daasync(void *callback_arg, u_int32_t code, 556 struct cam_path *path, void *arg); 557 static void dasysctlinit(void *context, int pending); 558 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 559 static periph_ctor_t daregister; 560 static periph_dtor_t dacleanup; 561 static periph_start_t dastart; 562 static periph_oninv_t daoninvalidate; 563 static void dadone(struct cam_periph *periph, 564 union ccb *done_ccb); 565 static int daerror(union ccb *ccb, u_int32_t cam_flags, 566 u_int32_t sense_flags); 567 static void daprevent(struct cam_periph *periph, int action); 568 static int dagetcapacity(struct cam_periph *periph); 569 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 570 uint64_t maxsector); 571 static timeout_t dasendorderedtag; 572 static void dashutdown(void *arg, int howto); 573 574 #ifndef DA_DEFAULT_TIMEOUT 575 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 576 #endif 577 578 #ifndef DA_DEFAULT_RETRY 579 #define DA_DEFAULT_RETRY 4 580 #endif 581 582 #ifndef DA_DEFAULT_SEND_ORDERED 583 #define DA_DEFAULT_SEND_ORDERED 1 584 #endif 585 586 587 static int da_retry_count = DA_DEFAULT_RETRY; 588 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 589 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 590 591 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 592 "CAM Direct Access Disk driver"); 593 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 594 &da_retry_count, 0, "Normal I/O retry count"); 595 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 596 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 597 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 598 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 599 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 600 &da_send_ordered, 0, "Send Ordered Tags"); 601 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 602 603 /* 604 * DA_ORDEREDTAG_INTERVAL determines how often, relative 605 * to the default timeout, we check to see whether an ordered 606 * tagged transaction is appropriate to prevent simple tag 607 * starvation. Since we'd like to ensure that there is at least 608 * 1/2 of the timeout length left for a starved transaction to 609 * complete after we've sent an ordered tag, we must poll at least 610 * four times in every timeout period. This takes care of the worst 611 * case where a starved transaction starts during an interval that 612 * meets the requirement "don't send an ordered tag" test so it takes 613 * us two intervals to determine that a tag must be sent. 614 */ 615 #ifndef DA_ORDEREDTAG_INTERVAL 616 #define DA_ORDEREDTAG_INTERVAL 4 617 #endif 618 619 static struct periph_driver dadriver = 620 { 621 dainit, "da", 622 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 623 }; 624 625 PERIPHDRIVER_DECLARE(da, dadriver); 626 627 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); 628 629 static int 630 daopen(struct disk *dp) 631 { 632 struct cam_periph *periph; 633 struct da_softc *softc; 634 int unit; 635 int error; 636 637 periph = (struct cam_periph *)dp->d_drv1; 638 if (periph == NULL) { 639 return (ENXIO); 640 } 641 642 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 643 return(ENXIO); 644 } 645 646 cam_periph_lock(periph); 647 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 648 cam_periph_unlock(periph); 649 cam_periph_release(periph); 650 return (error); 651 } 652 653 unit = periph->unit_number; 654 softc = (struct da_softc *)periph->softc; 655 softc->flags |= DA_FLAG_OPEN; 656 657 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 658 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 659 unit)); 660 661 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 662 /* Invalidate our pack information. */ 663 softc->flags &= ~DA_FLAG_PACK_INVALID; 664 } 665 666 error = dagetcapacity(periph); 667 668 if (error == 0) { 669 670 softc->disk->d_sectorsize = softc->params.secsize; 671 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 672 /* XXX: these are not actually "firmware" values, so they may be wrong */ 673 softc->disk->d_fwsectors = softc->params.secs_per_track; 674 softc->disk->d_fwheads = softc->params.heads; 675 softc->disk->d_devstat->block_size = softc->params.secsize; 676 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 677 678 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 679 (softc->quirks & DA_Q_NO_PREVENT) == 0) 680 daprevent(periph, PR_PREVENT); 681 } else 682 softc->flags &= ~DA_FLAG_OPEN; 683 684 cam_periph_unhold(periph); 685 cam_periph_unlock(periph); 686 687 if (error != 0) { 688 cam_periph_release(periph); 689 } 690 return (error); 691 } 692 693 static int 694 daclose(struct disk *dp) 695 { 696 struct cam_periph *periph; 697 struct da_softc *softc; 698 int error; 699 700 periph = (struct cam_periph *)dp->d_drv1; 701 if (periph == NULL) 702 return (ENXIO); 703 704 cam_periph_lock(periph); 705 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 706 cam_periph_unlock(periph); 707 cam_periph_release(periph); 708 return (error); 709 } 710 711 softc = (struct da_softc *)periph->softc; 712 713 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 714 union ccb *ccb; 715 716 ccb = cam_periph_getccb(periph, /*priority*/1); 717 718 scsi_synchronize_cache(&ccb->csio, 719 /*retries*/1, 720 /*cbfcnp*/dadone, 721 MSG_SIMPLE_Q_TAG, 722 /*begin_lba*/0,/* Cover the whole disk */ 723 /*lb_count*/0, 724 SSD_FULL_SIZE, 725 5 * 60 * 1000); 726 727 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 728 /*sense_flags*/SF_RETRY_UA, 729 softc->disk->d_devstat); 730 731 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 732 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 733 CAM_SCSI_STATUS_ERROR) { 734 int asc, ascq; 735 int sense_key, error_code; 736 737 scsi_extract_sense(&ccb->csio.sense_data, 738 &error_code, 739 &sense_key, 740 &asc, &ascq); 741 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 742 scsi_sense_print(&ccb->csio); 743 } else { 744 xpt_print(periph->path, "Synchronize cache " 745 "failed, status == 0x%x, scsi status == " 746 "0x%x\n", ccb->csio.ccb_h.status, 747 ccb->csio.scsi_status); 748 } 749 } 750 751 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 752 cam_release_devq(ccb->ccb_h.path, 753 /*relsim_flags*/0, 754 /*reduction*/0, 755 /*timeout*/0, 756 /*getcount_only*/0); 757 758 xpt_release_ccb(ccb); 759 760 } 761 762 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 763 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 764 daprevent(periph, PR_ALLOW); 765 /* 766 * If we've got removeable media, mark the blocksize as 767 * unavailable, since it could change when new media is 768 * inserted. 769 */ 770 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 771 } 772 773 softc->flags &= ~DA_FLAG_OPEN; 774 cam_periph_unhold(periph); 775 cam_periph_unlock(periph); 776 cam_periph_release(periph); 777 return (0); 778 } 779 780 /* 781 * Actually translate the requested transfer into one the physical driver 782 * can understand. The transfer is described by a buf and will include 783 * only one physical transfer. 784 */ 785 static void 786 dastrategy(struct bio *bp) 787 { 788 struct cam_periph *periph; 789 struct da_softc *softc; 790 791 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 792 if (periph == NULL) { 793 biofinish(bp, NULL, ENXIO); 794 return; 795 } 796 softc = (struct da_softc *)periph->softc; 797 798 cam_periph_lock(periph); 799 800 #if 0 801 /* 802 * check it's not too big a transfer for our adapter 803 */ 804 scsi_minphys(bp,&sd_switch); 805 #endif 806 807 /* 808 * Mask interrupts so that the pack cannot be invalidated until 809 * after we are in the queue. Otherwise, we might not properly 810 * clean up one of the buffers. 811 */ 812 813 /* 814 * If the device has been made invalid, error out 815 */ 816 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 817 cam_periph_unlock(periph); 818 biofinish(bp, NULL, ENXIO); 819 return; 820 } 821 822 /* 823 * Place it in the queue of disk activities for this disk 824 */ 825 bioq_disksort(&softc->bio_queue, bp); 826 827 /* 828 * Schedule ourselves for performing the work. 829 */ 830 xpt_schedule(periph, /* XXX priority */1); 831 cam_periph_unlock(periph); 832 833 return; 834 } 835 836 static int 837 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 838 { 839 struct cam_periph *periph; 840 struct da_softc *softc; 841 u_int secsize; 842 struct ccb_scsiio csio; 843 struct disk *dp; 844 845 dp = arg; 846 periph = dp->d_drv1; 847 if (periph == NULL) 848 return (ENXIO); 849 softc = (struct da_softc *)periph->softc; 850 cam_periph_lock(periph); 851 secsize = softc->params.secsize; 852 853 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 854 cam_periph_unlock(periph); 855 return (ENXIO); 856 } 857 858 if (length > 0) { 859 periph->flags |= CAM_PERIPH_POLLED; 860 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 861 csio.ccb_h.ccb_state = DA_CCB_DUMP; 862 scsi_read_write(&csio, 863 /*retries*/1, 864 dadone, 865 MSG_ORDERED_Q_TAG, 866 /*read*/FALSE, 867 /*byte2*/0, 868 /*minimum_cmd_size*/ softc->minimum_cmd_size, 869 offset / secsize, 870 length / secsize, 871 /*data_ptr*/(u_int8_t *) virtual, 872 /*dxfer_len*/length, 873 /*sense_len*/SSD_FULL_SIZE, 874 DA_DEFAULT_TIMEOUT * 1000); 875 xpt_polled_action((union ccb *)&csio); 876 877 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 878 printf("Aborting dump due to I/O error.\n"); 879 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 880 CAM_SCSI_STATUS_ERROR) 881 scsi_sense_print(&csio); 882 else 883 printf("status == 0x%x, scsi status == 0x%x\n", 884 csio.ccb_h.status, csio.scsi_status); 885 periph->flags |= CAM_PERIPH_POLLED; 886 return(EIO); 887 } 888 cam_periph_unlock(periph); 889 return(0); 890 } 891 892 /* 893 * Sync the disk cache contents to the physical media. 894 */ 895 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 896 897 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 898 csio.ccb_h.ccb_state = DA_CCB_DUMP; 899 scsi_synchronize_cache(&csio, 900 /*retries*/1, 901 /*cbfcnp*/dadone, 902 MSG_SIMPLE_Q_TAG, 903 /*begin_lba*/0,/* Cover the whole disk */ 904 /*lb_count*/0, 905 SSD_FULL_SIZE, 906 5 * 60 * 1000); 907 xpt_polled_action((union ccb *)&csio); 908 909 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 910 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 911 CAM_SCSI_STATUS_ERROR) { 912 int asc, ascq; 913 int sense_key, error_code; 914 915 scsi_extract_sense(&csio.sense_data, 916 &error_code, 917 &sense_key, 918 &asc, &ascq); 919 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 920 scsi_sense_print(&csio); 921 } else { 922 xpt_print(periph->path, "Synchronize cache " 923 "failed, status == 0x%x, scsi status == " 924 "0x%x\n", csio.ccb_h.status, 925 csio.scsi_status); 926 } 927 } 928 } 929 periph->flags &= ~CAM_PERIPH_POLLED; 930 cam_periph_unlock(periph); 931 return (0); 932 } 933 934 static void 935 dainit(void) 936 { 937 cam_status status; 938 939 /* 940 * Install a global async callback. This callback will 941 * receive async callbacks like "new device found". 942 */ 943 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 944 945 if (status != CAM_REQ_CMP) { 946 printf("da: Failed to attach master async callback " 947 "due to status 0x%x!\n", status); 948 } else if (da_send_ordered) { 949 950 /* Register our shutdown event handler */ 951 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 952 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 953 printf("dainit: shutdown event registration failed!\n"); 954 } 955 } 956 957 static void 958 daoninvalidate(struct cam_periph *periph) 959 { 960 struct da_softc *softc; 961 962 softc = (struct da_softc *)periph->softc; 963 964 /* 965 * De-register any async callbacks. 966 */ 967 xpt_register_async(0, daasync, periph, periph->path); 968 969 softc->flags |= DA_FLAG_PACK_INVALID; 970 971 /* 972 * Return all queued I/O with ENXIO. 973 * XXX Handle any transactions queued to the card 974 * with XPT_ABORT_CCB. 975 */ 976 bioq_flush(&softc->bio_queue, NULL, ENXIO); 977 978 disk_gone(softc->disk); 979 xpt_print(periph->path, "lost device\n"); 980 } 981 982 static void 983 dacleanup(struct cam_periph *periph) 984 { 985 struct da_softc *softc; 986 987 softc = (struct da_softc *)periph->softc; 988 989 xpt_print(periph->path, "removing device entry\n"); 990 cam_periph_unlock(periph); 991 992 /* 993 * If we can't free the sysctl tree, oh well... 994 */ 995 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 996 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 997 xpt_print(periph->path, "can't remove sysctl context\n"); 998 } 999 1000 disk_destroy(softc->disk); 1001 callout_drain(&softc->sendordered_c); 1002 free(softc, M_DEVBUF); 1003 cam_periph_lock(periph); 1004 } 1005 1006 static void 1007 daasync(void *callback_arg, u_int32_t code, 1008 struct cam_path *path, void *arg) 1009 { 1010 struct cam_periph *periph; 1011 1012 periph = (struct cam_periph *)callback_arg; 1013 switch (code) { 1014 case AC_FOUND_DEVICE: 1015 { 1016 struct ccb_getdev *cgd; 1017 cam_status status; 1018 1019 cgd = (struct ccb_getdev *)arg; 1020 if (cgd == NULL) 1021 break; 1022 1023 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1024 && SID_TYPE(&cgd->inq_data) != T_RBC 1025 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1026 break; 1027 1028 /* 1029 * Allocate a peripheral instance for 1030 * this device and start the probe 1031 * process. 1032 */ 1033 status = cam_periph_alloc(daregister, daoninvalidate, 1034 dacleanup, dastart, 1035 "da", CAM_PERIPH_BIO, 1036 cgd->ccb_h.path, daasync, 1037 AC_FOUND_DEVICE, cgd); 1038 1039 if (status != CAM_REQ_CMP 1040 && status != CAM_REQ_INPROG) 1041 printf("daasync: Unable to attach to new device " 1042 "due to status 0x%x\n", status); 1043 break; 1044 } 1045 case AC_SENT_BDR: 1046 case AC_BUS_RESET: 1047 { 1048 struct da_softc *softc; 1049 struct ccb_hdr *ccbh; 1050 1051 softc = (struct da_softc *)periph->softc; 1052 /* 1053 * Don't fail on the expected unit attention 1054 * that will occur. 1055 */ 1056 softc->flags |= DA_FLAG_RETRY_UA; 1057 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1058 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1059 /* FALLTHROUGH*/ 1060 } 1061 default: 1062 cam_periph_async(periph, code, path, arg); 1063 break; 1064 } 1065 } 1066 1067 static void 1068 dasysctlinit(void *context, int pending) 1069 { 1070 struct cam_periph *periph; 1071 struct da_softc *softc; 1072 char tmpstr[80], tmpstr2[80]; 1073 1074 periph = (struct cam_periph *)context; 1075 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1076 return; 1077 1078 softc = (struct da_softc *)periph->softc; 1079 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1080 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1081 1082 sysctl_ctx_init(&softc->sysctl_ctx); 1083 softc->flags |= DA_FLAG_SCTX_INIT; 1084 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1085 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1086 CTLFLAG_RD, 0, tmpstr); 1087 if (softc->sysctl_tree == NULL) { 1088 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1089 cam_periph_release(periph); 1090 return; 1091 } 1092 1093 /* 1094 * Now register the sysctl handler, so the user can the value on 1095 * the fly. 1096 */ 1097 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1098 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1099 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1100 "Minimum CDB size"); 1101 1102 cam_periph_release(periph); 1103 } 1104 1105 static int 1106 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1107 { 1108 int error, value; 1109 1110 value = *(int *)arg1; 1111 1112 error = sysctl_handle_int(oidp, &value, 0, req); 1113 1114 if ((error != 0) 1115 || (req->newptr == NULL)) 1116 return (error); 1117 1118 /* 1119 * Acceptable values here are 6, 10, 12 or 16. 1120 */ 1121 if (value < 6) 1122 value = 6; 1123 else if ((value > 6) 1124 && (value <= 10)) 1125 value = 10; 1126 else if ((value > 10) 1127 && (value <= 12)) 1128 value = 12; 1129 else if (value > 12) 1130 value = 16; 1131 1132 *(int *)arg1 = value; 1133 1134 return (0); 1135 } 1136 1137 static cam_status 1138 daregister(struct cam_periph *periph, void *arg) 1139 { 1140 struct da_softc *softc; 1141 struct ccb_pathinq cpi; 1142 struct ccb_getdev *cgd; 1143 char tmpstr[80]; 1144 caddr_t match; 1145 1146 cgd = (struct ccb_getdev *)arg; 1147 if (periph == NULL) { 1148 printf("daregister: periph was NULL!!\n"); 1149 return(CAM_REQ_CMP_ERR); 1150 } 1151 1152 if (cgd == NULL) { 1153 printf("daregister: no getdev CCB, can't register device\n"); 1154 return(CAM_REQ_CMP_ERR); 1155 } 1156 1157 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1158 M_NOWAIT|M_ZERO); 1159 1160 if (softc == NULL) { 1161 printf("daregister: Unable to probe new device. " 1162 "Unable to allocate softc\n"); 1163 return(CAM_REQ_CMP_ERR); 1164 } 1165 1166 LIST_INIT(&softc->pending_ccbs); 1167 softc->state = DA_STATE_PROBE; 1168 bioq_init(&softc->bio_queue); 1169 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1170 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1171 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1172 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1173 1174 periph->softc = softc; 1175 1176 /* 1177 * See if this device has any quirks. 1178 */ 1179 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1180 (caddr_t)da_quirk_table, 1181 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1182 sizeof(*da_quirk_table), scsi_inquiry_match); 1183 1184 if (match != NULL) 1185 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1186 else 1187 softc->quirks = DA_Q_NONE; 1188 1189 /* Check if the SIM does not want 6 byte commands */ 1190 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1191 cpi.ccb_h.func_code = XPT_PATH_INQ; 1192 xpt_action((union ccb *)&cpi); 1193 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1194 softc->quirks |= DA_Q_NO_6_BYTE; 1195 1196 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1197 1198 /* 1199 * RBC devices don't have to support READ(6), only READ(10). 1200 */ 1201 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1202 softc->minimum_cmd_size = 10; 1203 else 1204 softc->minimum_cmd_size = 6; 1205 1206 /* 1207 * Load the user's default, if any. 1208 */ 1209 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1210 periph->unit_number); 1211 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1212 1213 /* 1214 * 6, 10, 12 and 16 are the currently permissible values. 1215 */ 1216 if (softc->minimum_cmd_size < 6) 1217 softc->minimum_cmd_size = 6; 1218 else if ((softc->minimum_cmd_size > 6) 1219 && (softc->minimum_cmd_size <= 10)) 1220 softc->minimum_cmd_size = 10; 1221 else if ((softc->minimum_cmd_size > 10) 1222 && (softc->minimum_cmd_size <= 12)) 1223 softc->minimum_cmd_size = 12; 1224 else if (softc->minimum_cmd_size > 12) 1225 softc->minimum_cmd_size = 16; 1226 1227 /* 1228 * Register this media as a disk 1229 */ 1230 1231 mtx_unlock(periph->sim->mtx); 1232 softc->disk = disk_alloc(); 1233 softc->disk->d_open = daopen; 1234 softc->disk->d_close = daclose; 1235 softc->disk->d_strategy = dastrategy; 1236 softc->disk->d_dump = dadump; 1237 softc->disk->d_name = "da"; 1238 softc->disk->d_drv1 = periph; 1239 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1240 softc->disk->d_unit = periph->unit_number; 1241 softc->disk->d_flags = 0; 1242 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) 1243 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1244 disk_create(softc->disk, DISK_VERSION); 1245 mtx_lock(periph->sim->mtx); 1246 1247 /* 1248 * Add async callbacks for bus reset and 1249 * bus device reset calls. I don't bother 1250 * checking if this fails as, in most cases, 1251 * the system will function just fine without 1252 * them and the only alternative would be to 1253 * not attach the device on failure. 1254 */ 1255 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 1256 daasync, periph, periph->path); 1257 1258 /* 1259 * Take an exclusive refcount on the periph while dastart is called 1260 * to finish the probe. The reference will be dropped in dadone at 1261 * the end of probe. 1262 */ 1263 (void)cam_periph_hold(periph, PRIBIO); 1264 xpt_schedule(periph, /*priority*/5); 1265 1266 /* 1267 * Schedule a periodic event to occasionally send an 1268 * ordered tag to a device. 1269 */ 1270 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0); 1271 callout_reset(&softc->sendordered_c, 1272 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1273 dasendorderedtag, softc); 1274 1275 return(CAM_REQ_CMP); 1276 } 1277 1278 static void 1279 dastart(struct cam_periph *periph, union ccb *start_ccb) 1280 { 1281 struct da_softc *softc; 1282 1283 softc = (struct da_softc *)periph->softc; 1284 1285 switch (softc->state) { 1286 case DA_STATE_NORMAL: 1287 { 1288 /* Pull a buffer from the queue and get going on it */ 1289 struct bio *bp; 1290 1291 /* 1292 * See if there is a buf with work for us to do.. 1293 */ 1294 bp = bioq_first(&softc->bio_queue); 1295 if (periph->immediate_priority <= periph->pinfo.priority) { 1296 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1297 ("queuing for immediate ccb\n")); 1298 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1299 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1300 periph_links.sle); 1301 periph->immediate_priority = CAM_PRIORITY_NONE; 1302 wakeup(&periph->ccb_list); 1303 } else if (bp == NULL) { 1304 xpt_release_ccb(start_ccb); 1305 } else { 1306 u_int8_t tag_code; 1307 1308 bioq_remove(&softc->bio_queue, bp); 1309 1310 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1311 softc->flags &= ~DA_FLAG_NEED_OTAG; 1312 softc->ordered_tag_count++; 1313 tag_code = MSG_ORDERED_Q_TAG; 1314 } else { 1315 tag_code = MSG_SIMPLE_Q_TAG; 1316 } 1317 switch (bp->bio_cmd) { 1318 case BIO_READ: 1319 case BIO_WRITE: 1320 scsi_read_write(&start_ccb->csio, 1321 /*retries*/da_retry_count, 1322 /*cbfcnp*/dadone, 1323 /*tag_action*/tag_code, 1324 /*read_op*/bp->bio_cmd == BIO_READ, 1325 /*byte2*/0, 1326 softc->minimum_cmd_size, 1327 /*lba*/bp->bio_pblkno, 1328 /*block_count*/bp->bio_bcount / 1329 softc->params.secsize, 1330 /*data_ptr*/ bp->bio_data, 1331 /*dxfer_len*/ bp->bio_bcount, 1332 /*sense_len*/SSD_FULL_SIZE, 1333 /*timeout*/da_default_timeout*1000); 1334 break; 1335 case BIO_FLUSH: 1336 scsi_synchronize_cache(&start_ccb->csio, 1337 /*retries*/1, 1338 /*cbfcnp*/dadone, 1339 MSG_SIMPLE_Q_TAG, 1340 /*begin_lba*/0,/* Cover the whole disk */ 1341 /*lb_count*/0, 1342 SSD_FULL_SIZE, 1343 /*timeout*/da_default_timeout*1000); 1344 break; 1345 } 1346 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1347 1348 /* 1349 * Block out any asyncronous callbacks 1350 * while we touch the pending ccb list. 1351 */ 1352 LIST_INSERT_HEAD(&softc->pending_ccbs, 1353 &start_ccb->ccb_h, periph_links.le); 1354 softc->outstanding_cmds++; 1355 1356 /* We expect a unit attention from this device */ 1357 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1358 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1359 softc->flags &= ~DA_FLAG_RETRY_UA; 1360 } 1361 1362 start_ccb->ccb_h.ccb_bp = bp; 1363 bp = bioq_first(&softc->bio_queue); 1364 1365 xpt_action(start_ccb); 1366 } 1367 1368 if (bp != NULL) { 1369 /* Have more work to do, so ensure we stay scheduled */ 1370 xpt_schedule(periph, /* XXX priority */1); 1371 } 1372 break; 1373 } 1374 case DA_STATE_PROBE: 1375 { 1376 struct ccb_scsiio *csio; 1377 struct scsi_read_capacity_data *rcap; 1378 1379 rcap = (struct scsi_read_capacity_data *) 1380 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO); 1381 if (rcap == NULL) { 1382 printf("dastart: Couldn't malloc read_capacity data\n"); 1383 /* da_free_periph??? */ 1384 break; 1385 } 1386 csio = &start_ccb->csio; 1387 scsi_read_capacity(csio, 1388 /*retries*/4, 1389 dadone, 1390 MSG_SIMPLE_Q_TAG, 1391 rcap, 1392 SSD_FULL_SIZE, 1393 /*timeout*/5000); 1394 start_ccb->ccb_h.ccb_bp = NULL; 1395 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1396 xpt_action(start_ccb); 1397 break; 1398 } 1399 case DA_STATE_PROBE2: 1400 { 1401 struct ccb_scsiio *csio; 1402 struct scsi_read_capacity_data_long *rcaplong; 1403 1404 rcaplong = (struct scsi_read_capacity_data_long *) 1405 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); 1406 if (rcaplong == NULL) { 1407 printf("dastart: Couldn't malloc read_capacity data\n"); 1408 /* da_free_periph??? */ 1409 break; 1410 } 1411 csio = &start_ccb->csio; 1412 scsi_read_capacity_16(csio, 1413 /*retries*/ 4, 1414 /*cbfcnp*/ dadone, 1415 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1416 /*lba*/ 0, 1417 /*reladr*/ 0, 1418 /*pmi*/ 0, 1419 rcaplong, 1420 /*sense_len*/ SSD_FULL_SIZE, 1421 /*timeout*/ 60000); 1422 start_ccb->ccb_h.ccb_bp = NULL; 1423 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1424 xpt_action(start_ccb); 1425 break; 1426 } 1427 } 1428 } 1429 1430 static int 1431 cmd6workaround(union ccb *ccb) 1432 { 1433 struct scsi_rw_6 cmd6; 1434 struct scsi_rw_10 *cmd10; 1435 struct da_softc *softc; 1436 u_int8_t *cdb; 1437 int frozen; 1438 1439 cdb = ccb->csio.cdb_io.cdb_bytes; 1440 1441 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1442 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1443 (*cdb != READ_6 && *cdb != WRITE_6)) 1444 return 0; 1445 1446 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1447 "increasing minimum_cmd_size to 10.\n"); 1448 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1449 softc->minimum_cmd_size = 10; 1450 1451 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1452 cmd10 = (struct scsi_rw_10 *)cdb; 1453 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1454 cmd10->byte2 = 0; 1455 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1456 cmd10->reserved = 0; 1457 scsi_ulto2b(cmd6.length, cmd10->length); 1458 cmd10->control = cmd6.control; 1459 ccb->csio.cdb_len = sizeof(*cmd10); 1460 1461 /* Requeue request, unfreezing queue if necessary */ 1462 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1463 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1464 xpt_action(ccb); 1465 if (frozen) { 1466 cam_release_devq(ccb->ccb_h.path, 1467 /*relsim_flags*/0, 1468 /*reduction*/0, 1469 /*timeout*/0, 1470 /*getcount_only*/0); 1471 } 1472 return (ERESTART); 1473 } 1474 1475 static void 1476 dadone(struct cam_periph *periph, union ccb *done_ccb) 1477 { 1478 struct da_softc *softc; 1479 struct ccb_scsiio *csio; 1480 1481 softc = (struct da_softc *)periph->softc; 1482 csio = &done_ccb->csio; 1483 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1484 case DA_CCB_BUFFER_IO: 1485 { 1486 struct bio *bp; 1487 1488 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1489 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1490 int error; 1491 int sf; 1492 1493 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1494 sf = SF_RETRY_UA; 1495 else 1496 sf = 0; 1497 1498 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1499 if (error == ERESTART) { 1500 /* 1501 * A retry was scheuled, so 1502 * just return. 1503 */ 1504 return; 1505 } 1506 if (error != 0) { 1507 1508 if (error == ENXIO) { 1509 /* 1510 * Catastrophic error. Mark our pack as 1511 * invalid. 1512 */ 1513 /* 1514 * XXX See if this is really a media 1515 * XXX change first? 1516 */ 1517 xpt_print(periph->path, 1518 "Invalidating pack\n"); 1519 softc->flags |= DA_FLAG_PACK_INVALID; 1520 } 1521 1522 /* 1523 * return all queued I/O with EIO, so that 1524 * the client can retry these I/Os in the 1525 * proper order should it attempt to recover. 1526 */ 1527 bioq_flush(&softc->bio_queue, NULL, EIO); 1528 bp->bio_error = error; 1529 bp->bio_resid = bp->bio_bcount; 1530 bp->bio_flags |= BIO_ERROR; 1531 } else { 1532 bp->bio_resid = csio->resid; 1533 bp->bio_error = 0; 1534 if (bp->bio_resid != 0) 1535 bp->bio_flags |= BIO_ERROR; 1536 } 1537 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1538 cam_release_devq(done_ccb->ccb_h.path, 1539 /*relsim_flags*/0, 1540 /*reduction*/0, 1541 /*timeout*/0, 1542 /*getcount_only*/0); 1543 } else { 1544 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1545 panic("REQ_CMP with QFRZN"); 1546 bp->bio_resid = csio->resid; 1547 if (csio->resid > 0) 1548 bp->bio_flags |= BIO_ERROR; 1549 } 1550 1551 /* 1552 * Block out any asyncronous callbacks 1553 * while we touch the pending ccb list. 1554 */ 1555 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1556 softc->outstanding_cmds--; 1557 if (softc->outstanding_cmds == 0) 1558 softc->flags |= DA_FLAG_WENT_IDLE; 1559 1560 biodone(bp); 1561 break; 1562 } 1563 case DA_CCB_PROBE: 1564 case DA_CCB_PROBE2: 1565 { 1566 struct scsi_read_capacity_data *rdcap; 1567 struct scsi_read_capacity_data_long *rcaplong; 1568 char announce_buf[80]; 1569 1570 rdcap = NULL; 1571 rcaplong = NULL; 1572 if (softc->state == DA_STATE_PROBE) 1573 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1574 else 1575 rcaplong = (struct scsi_read_capacity_data_long *) 1576 csio->data_ptr; 1577 1578 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1579 struct disk_params *dp; 1580 uint32_t block_size; 1581 uint64_t maxsector; 1582 1583 if (softc->state == DA_STATE_PROBE) { 1584 block_size = scsi_4btoul(rdcap->length); 1585 maxsector = scsi_4btoul(rdcap->addr); 1586 1587 /* 1588 * According to SBC-2, if the standard 10 1589 * byte READ CAPACITY command returns 2^32, 1590 * we should issue the 16 byte version of 1591 * the command, since the device in question 1592 * has more sectors than can be represented 1593 * with the short version of the command. 1594 */ 1595 if (maxsector == 0xffffffff) { 1596 softc->state = DA_STATE_PROBE2; 1597 free(rdcap, M_SCSIDA); 1598 xpt_release_ccb(done_ccb); 1599 xpt_schedule(periph, /*priority*/5); 1600 return; 1601 } 1602 } else { 1603 block_size = scsi_4btoul(rcaplong->length); 1604 maxsector = scsi_8btou64(rcaplong->addr); 1605 } 1606 1607 /* 1608 * Because GEOM code just will panic us if we 1609 * give them an 'illegal' value we'll avoid that 1610 * here. 1611 */ 1612 if (block_size >= MAXPHYS || block_size == 0) { 1613 xpt_print(periph->path, 1614 "unsupportable block size %ju\n", 1615 (uintmax_t) block_size); 1616 announce_buf[0] = '\0'; 1617 cam_periph_invalidate(periph); 1618 } else { 1619 dasetgeom(periph, block_size, maxsector); 1620 dp = &softc->params; 1621 snprintf(announce_buf, sizeof(announce_buf), 1622 "%juMB (%ju %u byte sectors: %dH %dS/T " 1623 "%dC)", (uintmax_t) 1624 (((uintmax_t)dp->secsize * 1625 dp->sectors) / (1024*1024)), 1626 (uintmax_t)dp->sectors, 1627 dp->secsize, dp->heads, 1628 dp->secs_per_track, dp->cylinders); 1629 } 1630 } else { 1631 int error; 1632 1633 announce_buf[0] = '\0'; 1634 1635 /* 1636 * Retry any UNIT ATTENTION type errors. They 1637 * are expected at boot. 1638 */ 1639 error = daerror(done_ccb, CAM_RETRY_SELTO, 1640 SF_RETRY_UA|SF_NO_PRINT); 1641 if (error == ERESTART) { 1642 /* 1643 * A retry was scheuled, so 1644 * just return. 1645 */ 1646 return; 1647 } else if (error != 0) { 1648 struct scsi_sense_data *sense; 1649 int asc, ascq; 1650 int sense_key, error_code; 1651 int have_sense; 1652 cam_status status; 1653 struct ccb_getdev cgd; 1654 1655 /* Don't wedge this device's queue */ 1656 status = done_ccb->ccb_h.status; 1657 if ((status & CAM_DEV_QFRZN) != 0) 1658 cam_release_devq(done_ccb->ccb_h.path, 1659 /*relsim_flags*/0, 1660 /*reduction*/0, 1661 /*timeout*/0, 1662 /*getcount_only*/0); 1663 1664 1665 xpt_setup_ccb(&cgd.ccb_h, 1666 done_ccb->ccb_h.path, 1667 /* priority */ 1); 1668 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1669 xpt_action((union ccb *)&cgd); 1670 1671 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1672 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1673 || ((status & CAM_AUTOSNS_VALID) == 0)) 1674 have_sense = FALSE; 1675 else 1676 have_sense = TRUE; 1677 1678 if (have_sense) { 1679 sense = &csio->sense_data; 1680 scsi_extract_sense(sense, &error_code, 1681 &sense_key, 1682 &asc, &ascq); 1683 } 1684 /* 1685 * Attach to anything that claims to be a 1686 * direct access or optical disk device, 1687 * as long as it doesn't return a "Logical 1688 * unit not supported" (0x25) error. 1689 */ 1690 if ((have_sense) && (asc != 0x25) 1691 && (error_code == SSD_CURRENT_ERROR)) { 1692 const char *sense_key_desc; 1693 const char *asc_desc; 1694 1695 scsi_sense_desc(sense_key, asc, ascq, 1696 &cgd.inq_data, 1697 &sense_key_desc, 1698 &asc_desc); 1699 snprintf(announce_buf, 1700 sizeof(announce_buf), 1701 "Attempt to query device " 1702 "size failed: %s, %s", 1703 sense_key_desc, 1704 asc_desc); 1705 } else { 1706 if (have_sense) 1707 scsi_sense_print( 1708 &done_ccb->csio); 1709 else { 1710 xpt_print(periph->path, 1711 "got CAM status %#x\n", 1712 done_ccb->ccb_h.status); 1713 } 1714 1715 xpt_print(periph->path, "fatal error, " 1716 "failed to attach to device\n"); 1717 1718 /* 1719 * Free up resources. 1720 */ 1721 cam_periph_invalidate(periph); 1722 } 1723 } 1724 } 1725 free(csio->data_ptr, M_SCSIDA); 1726 if (announce_buf[0] != '\0') { 1727 xpt_announce_periph(periph, announce_buf); 1728 /* 1729 * Create our sysctl variables, now that we know 1730 * we have successfully attached. 1731 */ 1732 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1733 } 1734 softc->state = DA_STATE_NORMAL; 1735 /* 1736 * Since our peripheral may be invalidated by an error 1737 * above or an external event, we must release our CCB 1738 * before releasing the probe lock on the peripheral. 1739 * The peripheral will only go away once the last lock 1740 * is removed, and we need it around for the CCB release 1741 * operation. 1742 */ 1743 xpt_release_ccb(done_ccb); 1744 cam_periph_unhold(periph); 1745 return; 1746 } 1747 case DA_CCB_WAITING: 1748 { 1749 /* Caller will release the CCB */ 1750 wakeup(&done_ccb->ccb_h.cbfcnp); 1751 return; 1752 } 1753 case DA_CCB_DUMP: 1754 /* No-op. We're polling */ 1755 return; 1756 default: 1757 break; 1758 } 1759 xpt_release_ccb(done_ccb); 1760 } 1761 1762 static int 1763 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1764 { 1765 struct da_softc *softc; 1766 struct cam_periph *periph; 1767 int error; 1768 1769 periph = xpt_path_periph(ccb->ccb_h.path); 1770 softc = (struct da_softc *)periph->softc; 1771 1772 /* 1773 * Automatically detect devices that do not support 1774 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1775 */ 1776 error = 0; 1777 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1778 error = cmd6workaround(ccb); 1779 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1780 CAM_SCSI_STATUS_ERROR) 1781 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1782 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1783 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1784 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1785 int sense_key, error_code, asc, ascq; 1786 1787 scsi_extract_sense(&ccb->csio.sense_data, 1788 &error_code, &sense_key, &asc, &ascq); 1789 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1790 error = cmd6workaround(ccb); 1791 } 1792 if (error == ERESTART) 1793 return (ERESTART); 1794 1795 /* 1796 * XXX 1797 * Until we have a better way of doing pack validation, 1798 * don't treat UAs as errors. 1799 */ 1800 sense_flags |= SF_RETRY_UA; 1801 return(cam_periph_error(ccb, cam_flags, sense_flags, 1802 &softc->saved_ccb)); 1803 } 1804 1805 static void 1806 daprevent(struct cam_periph *periph, int action) 1807 { 1808 struct da_softc *softc; 1809 union ccb *ccb; 1810 int error; 1811 1812 softc = (struct da_softc *)periph->softc; 1813 1814 if (((action == PR_ALLOW) 1815 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1816 || ((action == PR_PREVENT) 1817 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1818 return; 1819 } 1820 1821 ccb = cam_periph_getccb(periph, /*priority*/1); 1822 1823 scsi_prevent(&ccb->csio, 1824 /*retries*/1, 1825 /*cbcfp*/dadone, 1826 MSG_SIMPLE_Q_TAG, 1827 action, 1828 SSD_FULL_SIZE, 1829 5000); 1830 1831 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1832 SF_RETRY_UA, softc->disk->d_devstat); 1833 1834 if (error == 0) { 1835 if (action == PR_ALLOW) 1836 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1837 else 1838 softc->flags |= DA_FLAG_PACK_LOCKED; 1839 } 1840 1841 xpt_release_ccb(ccb); 1842 } 1843 1844 static int 1845 dagetcapacity(struct cam_periph *periph) 1846 { 1847 struct da_softc *softc; 1848 union ccb *ccb; 1849 struct scsi_read_capacity_data *rcap; 1850 struct scsi_read_capacity_data_long *rcaplong; 1851 uint32_t block_len; 1852 uint64_t maxsector; 1853 int error; 1854 u_int32_t sense_flags; 1855 1856 softc = (struct da_softc *)periph->softc; 1857 block_len = 0; 1858 maxsector = 0; 1859 error = 0; 1860 sense_flags = SF_RETRY_UA; 1861 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1862 sense_flags |= SF_NO_PRINT; 1863 1864 /* Do a read capacity */ 1865 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1866 M_SCSIDA, 1867 M_NOWAIT); 1868 if (rcap == NULL) 1869 return (ENOMEM); 1870 1871 ccb = cam_periph_getccb(periph, /*priority*/1); 1872 scsi_read_capacity(&ccb->csio, 1873 /*retries*/4, 1874 /*cbfncp*/dadone, 1875 MSG_SIMPLE_Q_TAG, 1876 rcap, 1877 SSD_FULL_SIZE, 1878 /*timeout*/60000); 1879 ccb->ccb_h.ccb_bp = NULL; 1880 1881 error = cam_periph_runccb(ccb, daerror, 1882 /*cam_flags*/CAM_RETRY_SELTO, 1883 sense_flags, 1884 softc->disk->d_devstat); 1885 1886 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1887 cam_release_devq(ccb->ccb_h.path, 1888 /*relsim_flags*/0, 1889 /*reduction*/0, 1890 /*timeout*/0, 1891 /*getcount_only*/0); 1892 1893 if (error == 0) { 1894 block_len = scsi_4btoul(rcap->length); 1895 maxsector = scsi_4btoul(rcap->addr); 1896 1897 if (maxsector != 0xffffffff) 1898 goto done; 1899 } else 1900 goto done; 1901 1902 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1903 1904 scsi_read_capacity_16(&ccb->csio, 1905 /*retries*/ 4, 1906 /*cbfcnp*/ dadone, 1907 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1908 /*lba*/ 0, 1909 /*reladr*/ 0, 1910 /*pmi*/ 0, 1911 rcaplong, 1912 /*sense_len*/ SSD_FULL_SIZE, 1913 /*timeout*/ 60000); 1914 ccb->ccb_h.ccb_bp = NULL; 1915 1916 error = cam_periph_runccb(ccb, daerror, 1917 /*cam_flags*/CAM_RETRY_SELTO, 1918 sense_flags, 1919 softc->disk->d_devstat); 1920 1921 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1922 cam_release_devq(ccb->ccb_h.path, 1923 /*relsim_flags*/0, 1924 /*reduction*/0, 1925 /*timeout*/0, 1926 /*getcount_only*/0); 1927 1928 if (error == 0) { 1929 block_len = scsi_4btoul(rcaplong->length); 1930 maxsector = scsi_8btou64(rcaplong->addr); 1931 } 1932 1933 done: 1934 1935 if (error == 0) 1936 dasetgeom(periph, block_len, maxsector); 1937 1938 xpt_release_ccb(ccb); 1939 1940 free(rcap, M_SCSIDA); 1941 1942 return (error); 1943 } 1944 1945 static void 1946 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1947 { 1948 struct ccb_calc_geometry ccg; 1949 struct da_softc *softc; 1950 struct disk_params *dp; 1951 1952 softc = (struct da_softc *)periph->softc; 1953 1954 dp = &softc->params; 1955 dp->secsize = block_len; 1956 dp->sectors = maxsector + 1; 1957 /* 1958 * Have the controller provide us with a geometry 1959 * for this disk. The only time the geometry 1960 * matters is when we boot and the controller 1961 * is the only one knowledgeable enough to come 1962 * up with something that will make this a bootable 1963 * device. 1964 */ 1965 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1966 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1967 ccg.block_size = dp->secsize; 1968 ccg.volume_size = dp->sectors; 1969 ccg.heads = 0; 1970 ccg.secs_per_track = 0; 1971 ccg.cylinders = 0; 1972 xpt_action((union ccb*)&ccg); 1973 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1974 /* 1975 * We don't know what went wrong here- but just pick 1976 * a geometry so we don't have nasty things like divide 1977 * by zero. 1978 */ 1979 dp->heads = 255; 1980 dp->secs_per_track = 255; 1981 dp->cylinders = dp->sectors / (255 * 255); 1982 if (dp->cylinders == 0) { 1983 dp->cylinders = 1; 1984 } 1985 } else { 1986 dp->heads = ccg.heads; 1987 dp->secs_per_track = ccg.secs_per_track; 1988 dp->cylinders = ccg.cylinders; 1989 } 1990 } 1991 1992 static void 1993 dasendorderedtag(void *arg) 1994 { 1995 struct da_softc *softc = arg; 1996 1997 if (da_send_ordered) { 1998 if ((softc->ordered_tag_count == 0) 1999 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2000 softc->flags |= DA_FLAG_NEED_OTAG; 2001 } 2002 if (softc->outstanding_cmds > 0) 2003 softc->flags &= ~DA_FLAG_WENT_IDLE; 2004 2005 softc->ordered_tag_count = 0; 2006 } 2007 /* Queue us up again */ 2008 callout_reset(&softc->sendordered_c, 2009 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2010 dasendorderedtag, softc); 2011 } 2012 2013 /* 2014 * Step through all DA peripheral drivers, and if the device is still open, 2015 * sync the disk cache to physical media. 2016 */ 2017 static void 2018 dashutdown(void * arg, int howto) 2019 { 2020 struct cam_periph *periph; 2021 struct da_softc *softc; 2022 2023 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2024 union ccb ccb; 2025 2026 cam_periph_lock(periph); 2027 softc = (struct da_softc *)periph->softc; 2028 2029 /* 2030 * We only sync the cache if the drive is still open, and 2031 * if the drive is capable of it.. 2032 */ 2033 if (((softc->flags & DA_FLAG_OPEN) == 0) 2034 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2035 cam_periph_unlock(periph); 2036 continue; 2037 } 2038 2039 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2040 2041 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2042 scsi_synchronize_cache(&ccb.csio, 2043 /*retries*/1, 2044 /*cbfcnp*/dadone, 2045 MSG_SIMPLE_Q_TAG, 2046 /*begin_lba*/0, /* whole disk */ 2047 /*lb_count*/0, 2048 SSD_FULL_SIZE, 2049 60 * 60 * 1000); 2050 2051 xpt_polled_action(&ccb); 2052 2053 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2054 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2055 CAM_SCSI_STATUS_ERROR) 2056 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2057 int error_code, sense_key, asc, ascq; 2058 2059 scsi_extract_sense(&ccb.csio.sense_data, 2060 &error_code, &sense_key, 2061 &asc, &ascq); 2062 2063 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2064 scsi_sense_print(&ccb.csio); 2065 } else { 2066 xpt_print(periph->path, "Synchronize " 2067 "cache failed, status == 0x%x, scsi status " 2068 "== 0x%x\n", ccb.ccb_h.status, 2069 ccb.csio.scsi_status); 2070 } 2071 } 2072 2073 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2074 cam_release_devq(ccb.ccb_h.path, 2075 /*relsim_flags*/0, 2076 /*reduction*/0, 2077 /*timeout*/0, 2078 /*getcount_only*/0); 2079 cam_periph_unlock(periph); 2080 } 2081 } 2082 2083 #else /* !_KERNEL */ 2084 2085 /* 2086 * XXX This is only left out of the kernel build to silence warnings. If, 2087 * for some reason this function is used in the kernel, the ifdefs should 2088 * be moved so it is included both in the kernel and userland. 2089 */ 2090 void 2091 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2092 void (*cbfcnp)(struct cam_periph *, union ccb *), 2093 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2094 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2095 u_int32_t timeout) 2096 { 2097 struct scsi_format_unit *scsi_cmd; 2098 2099 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2100 scsi_cmd->opcode = FORMAT_UNIT; 2101 scsi_cmd->byte2 = byte2; 2102 scsi_ulto2b(ileave, scsi_cmd->interleave); 2103 2104 cam_fill_csio(csio, 2105 retries, 2106 cbfcnp, 2107 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2108 tag_action, 2109 data_ptr, 2110 dxfer_len, 2111 sense_len, 2112 sizeof(*scsi_cmd), 2113 timeout); 2114 } 2115 2116 #endif /* _KERNEL */
Cache object: 82d2f100c3c796e665087fb0dbf0b3df
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