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("$FreeBSD$"); 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 } 678 679 if (error == 0) { 680 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 681 (softc->quirks & DA_Q_NO_PREVENT) == 0) 682 daprevent(periph, PR_PREVENT); 683 } else { 684 softc->flags &= ~DA_FLAG_OPEN; 685 cam_periph_release(periph); 686 } 687 cam_periph_unhold(periph); 688 cam_periph_unlock(periph); 689 return (error); 690 } 691 692 static int 693 daclose(struct disk *dp) 694 { 695 struct cam_periph *periph; 696 struct da_softc *softc; 697 int error; 698 699 periph = (struct cam_periph *)dp->d_drv1; 700 if (periph == NULL) 701 return (ENXIO); 702 703 cam_periph_lock(periph); 704 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 705 cam_periph_unlock(periph); 706 cam_periph_release(periph); 707 return (error); 708 } 709 710 softc = (struct da_softc *)periph->softc; 711 712 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 713 union ccb *ccb; 714 715 ccb = cam_periph_getccb(periph, /*priority*/1); 716 717 scsi_synchronize_cache(&ccb->csio, 718 /*retries*/1, 719 /*cbfcnp*/dadone, 720 MSG_SIMPLE_Q_TAG, 721 /*begin_lba*/0,/* Cover the whole disk */ 722 /*lb_count*/0, 723 SSD_FULL_SIZE, 724 5 * 60 * 1000); 725 726 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 727 /*sense_flags*/SF_RETRY_UA, 728 softc->disk->d_devstat); 729 730 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 731 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 732 CAM_SCSI_STATUS_ERROR) { 733 int asc, ascq; 734 int sense_key, error_code; 735 736 scsi_extract_sense(&ccb->csio.sense_data, 737 &error_code, 738 &sense_key, 739 &asc, &ascq); 740 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 741 scsi_sense_print(&ccb->csio); 742 } else { 743 xpt_print(periph->path, "Synchronize cache " 744 "failed, status == 0x%x, scsi status == " 745 "0x%x\n", ccb->csio.ccb_h.status, 746 ccb->csio.scsi_status); 747 } 748 } 749 750 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 751 cam_release_devq(ccb->ccb_h.path, 752 /*relsim_flags*/0, 753 /*reduction*/0, 754 /*timeout*/0, 755 /*getcount_only*/0); 756 757 xpt_release_ccb(ccb); 758 759 } 760 761 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 762 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 763 daprevent(periph, PR_ALLOW); 764 /* 765 * If we've got removeable media, mark the blocksize as 766 * unavailable, since it could change when new media is 767 * inserted. 768 */ 769 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 770 } 771 772 softc->flags &= ~DA_FLAG_OPEN; 773 cam_periph_unhold(periph); 774 cam_periph_release(periph); 775 cam_periph_unlock(periph); 776 return (0); 777 } 778 779 /* 780 * Actually translate the requested transfer into one the physical driver 781 * can understand. The transfer is described by a buf and will include 782 * only one physical transfer. 783 */ 784 static void 785 dastrategy(struct bio *bp) 786 { 787 struct cam_periph *periph; 788 struct da_softc *softc; 789 790 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 791 if (periph == NULL) { 792 biofinish(bp, NULL, ENXIO); 793 return; 794 } 795 softc = (struct da_softc *)periph->softc; 796 797 cam_periph_lock(periph); 798 799 #if 0 800 /* 801 * check it's not too big a transfer for our adapter 802 */ 803 scsi_minphys(bp,&sd_switch); 804 #endif 805 806 /* 807 * Mask interrupts so that the pack cannot be invalidated until 808 * after we are in the queue. Otherwise, we might not properly 809 * clean up one of the buffers. 810 */ 811 812 /* 813 * If the device has been made invalid, error out 814 */ 815 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 816 cam_periph_unlock(periph); 817 biofinish(bp, NULL, ENXIO); 818 return; 819 } 820 821 /* 822 * Place it in the queue of disk activities for this disk 823 */ 824 bioq_disksort(&softc->bio_queue, bp); 825 826 /* 827 * Schedule ourselves for performing the work. 828 */ 829 xpt_schedule(periph, /* XXX priority */1); 830 cam_periph_unlock(periph); 831 832 return; 833 } 834 835 static int 836 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 837 { 838 struct cam_periph *periph; 839 struct da_softc *softc; 840 u_int secsize; 841 struct ccb_scsiio csio; 842 struct disk *dp; 843 844 dp = arg; 845 periph = dp->d_drv1; 846 if (periph == NULL) 847 return (ENXIO); 848 softc = (struct da_softc *)periph->softc; 849 cam_periph_lock(periph); 850 secsize = softc->params.secsize; 851 852 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 853 cam_periph_unlock(periph); 854 return (ENXIO); 855 } 856 857 if (length > 0) { 858 periph->flags |= CAM_PERIPH_POLLED; 859 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 860 csio.ccb_h.ccb_state = DA_CCB_DUMP; 861 scsi_read_write(&csio, 862 /*retries*/1, 863 dadone, 864 MSG_ORDERED_Q_TAG, 865 /*read*/FALSE, 866 /*byte2*/0, 867 /*minimum_cmd_size*/ softc->minimum_cmd_size, 868 offset / secsize, 869 length / secsize, 870 /*data_ptr*/(u_int8_t *) virtual, 871 /*dxfer_len*/length, 872 /*sense_len*/SSD_FULL_SIZE, 873 DA_DEFAULT_TIMEOUT * 1000); 874 xpt_polled_action((union ccb *)&csio); 875 876 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 877 printf("Aborting dump due to I/O error.\n"); 878 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 879 CAM_SCSI_STATUS_ERROR) 880 scsi_sense_print(&csio); 881 else 882 printf("status == 0x%x, scsi status == 0x%x\n", 883 csio.ccb_h.status, csio.scsi_status); 884 periph->flags |= CAM_PERIPH_POLLED; 885 return(EIO); 886 } 887 cam_periph_unlock(periph); 888 return(0); 889 } 890 891 /* 892 * Sync the disk cache contents to the physical media. 893 */ 894 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 895 896 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 897 csio.ccb_h.ccb_state = DA_CCB_DUMP; 898 scsi_synchronize_cache(&csio, 899 /*retries*/1, 900 /*cbfcnp*/dadone, 901 MSG_SIMPLE_Q_TAG, 902 /*begin_lba*/0,/* Cover the whole disk */ 903 /*lb_count*/0, 904 SSD_FULL_SIZE, 905 5 * 60 * 1000); 906 xpt_polled_action((union ccb *)&csio); 907 908 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 909 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 910 CAM_SCSI_STATUS_ERROR) { 911 int asc, ascq; 912 int sense_key, error_code; 913 914 scsi_extract_sense(&csio.sense_data, 915 &error_code, 916 &sense_key, 917 &asc, &ascq); 918 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 919 scsi_sense_print(&csio); 920 } else { 921 xpt_print(periph->path, "Synchronize cache " 922 "failed, status == 0x%x, scsi status == " 923 "0x%x\n", csio.ccb_h.status, 924 csio.scsi_status); 925 } 926 } 927 } 928 periph->flags &= ~CAM_PERIPH_POLLED; 929 cam_periph_unlock(periph); 930 return (0); 931 } 932 933 static void 934 dainit(void) 935 { 936 cam_status status; 937 938 /* 939 * Install a global async callback. This callback will 940 * receive async callbacks like "new device found". 941 */ 942 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 943 944 if (status != CAM_REQ_CMP) { 945 printf("da: Failed to attach master async callback " 946 "due to status 0x%x!\n", status); 947 } else if (da_send_ordered) { 948 949 /* Register our shutdown event handler */ 950 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 951 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 952 printf("dainit: shutdown event registration failed!\n"); 953 } 954 } 955 956 static void 957 daoninvalidate(struct cam_periph *periph) 958 { 959 struct da_softc *softc; 960 961 softc = (struct da_softc *)periph->softc; 962 963 /* 964 * De-register any async callbacks. 965 */ 966 xpt_register_async(0, daasync, periph, periph->path); 967 968 softc->flags |= DA_FLAG_PACK_INVALID; 969 970 /* 971 * Return all queued I/O with ENXIO. 972 * XXX Handle any transactions queued to the card 973 * with XPT_ABORT_CCB. 974 */ 975 bioq_flush(&softc->bio_queue, NULL, ENXIO); 976 977 disk_gone(softc->disk); 978 xpt_print(periph->path, "lost device\n"); 979 } 980 981 static void 982 dacleanup(struct cam_periph *periph) 983 { 984 struct da_softc *softc; 985 986 softc = (struct da_softc *)periph->softc; 987 988 xpt_print(periph->path, "removing device entry\n"); 989 /* 990 * If we can't free the sysctl tree, oh well... 991 */ 992 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 993 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 994 xpt_print(periph->path, "can't remove sysctl context\n"); 995 } 996 997 cam_periph_unlock(periph); 998 disk_destroy(softc->disk); 999 callout_drain(&softc->sendordered_c); 1000 cam_periph_lock(periph); 1001 free(softc, M_DEVBUF); 1002 } 1003 1004 static void 1005 daasync(void *callback_arg, u_int32_t code, 1006 struct cam_path *path, void *arg) 1007 { 1008 struct cam_periph *periph; 1009 1010 periph = (struct cam_periph *)callback_arg; 1011 switch (code) { 1012 case AC_FOUND_DEVICE: 1013 { 1014 struct ccb_getdev *cgd; 1015 struct cam_sim *sim; 1016 cam_status status; 1017 1018 cgd = (struct ccb_getdev *)arg; 1019 if (cgd == NULL) 1020 break; 1021 1022 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1023 && SID_TYPE(&cgd->inq_data) != T_RBC 1024 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1025 break; 1026 1027 /* 1028 * Allocate a peripheral instance for 1029 * this device and start the probe 1030 * process. 1031 */ 1032 sim = xpt_path_sim(cgd->ccb_h.path); 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 mtx_lock(&Giant); 1083 sysctl_ctx_init(&softc->sysctl_ctx); 1084 softc->flags |= DA_FLAG_SCTX_INIT; 1085 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1086 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1087 CTLFLAG_RD, 0, tmpstr); 1088 if (softc->sysctl_tree == NULL) { 1089 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1090 mtx_unlock(&Giant); 1091 cam_periph_release(periph); 1092 return; 1093 } 1094 1095 /* 1096 * Now register the sysctl handler, so the user can the value on 1097 * the fly. 1098 */ 1099 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1100 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1101 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1102 "Minimum CDB size"); 1103 1104 mtx_unlock(&Giant); 1105 cam_periph_release(periph); 1106 } 1107 1108 static int 1109 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1110 { 1111 int error, value; 1112 1113 value = *(int *)arg1; 1114 1115 error = sysctl_handle_int(oidp, &value, 0, req); 1116 1117 if ((error != 0) 1118 || (req->newptr == NULL)) 1119 return (error); 1120 1121 /* 1122 * Acceptable values here are 6, 10, 12 or 16. 1123 */ 1124 if (value < 6) 1125 value = 6; 1126 else if ((value > 6) 1127 && (value <= 10)) 1128 value = 10; 1129 else if ((value > 10) 1130 && (value <= 12)) 1131 value = 12; 1132 else if (value > 12) 1133 value = 16; 1134 1135 *(int *)arg1 = value; 1136 1137 return (0); 1138 } 1139 1140 static cam_status 1141 daregister(struct cam_periph *periph, void *arg) 1142 { 1143 struct da_softc *softc; 1144 struct ccb_pathinq cpi; 1145 struct ccb_getdev *cgd; 1146 char tmpstr[80]; 1147 caddr_t match; 1148 1149 cgd = (struct ccb_getdev *)arg; 1150 if (periph == NULL) { 1151 printf("daregister: periph was NULL!!\n"); 1152 return(CAM_REQ_CMP_ERR); 1153 } 1154 1155 if (cgd == NULL) { 1156 printf("daregister: no getdev CCB, can't register device\n"); 1157 return(CAM_REQ_CMP_ERR); 1158 } 1159 1160 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1161 M_NOWAIT|M_ZERO); 1162 1163 if (softc == NULL) { 1164 printf("daregister: Unable to probe new device. " 1165 "Unable to allocate softc\n"); 1166 return(CAM_REQ_CMP_ERR); 1167 } 1168 1169 LIST_INIT(&softc->pending_ccbs); 1170 softc->state = DA_STATE_PROBE; 1171 bioq_init(&softc->bio_queue); 1172 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1173 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1174 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1175 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1176 1177 periph->softc = softc; 1178 1179 /* 1180 * See if this device has any quirks. 1181 */ 1182 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1183 (caddr_t)da_quirk_table, 1184 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1185 sizeof(*da_quirk_table), scsi_inquiry_match); 1186 1187 if (match != NULL) 1188 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1189 else 1190 softc->quirks = DA_Q_NONE; 1191 1192 /* Check if the SIM does not want 6 byte commands */ 1193 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1194 cpi.ccb_h.func_code = XPT_PATH_INQ; 1195 xpt_action((union ccb *)&cpi); 1196 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1197 softc->quirks |= DA_Q_NO_6_BYTE; 1198 1199 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1200 1201 /* 1202 * RBC devices don't have to support READ(6), only READ(10). 1203 */ 1204 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1205 softc->minimum_cmd_size = 10; 1206 else 1207 softc->minimum_cmd_size = 6; 1208 1209 /* 1210 * Load the user's default, if any. 1211 */ 1212 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1213 periph->unit_number); 1214 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1215 1216 /* 1217 * 6, 10, 12 and 16 are the currently permissible values. 1218 */ 1219 if (softc->minimum_cmd_size < 6) 1220 softc->minimum_cmd_size = 6; 1221 else if ((softc->minimum_cmd_size > 6) 1222 && (softc->minimum_cmd_size <= 10)) 1223 softc->minimum_cmd_size = 10; 1224 else if ((softc->minimum_cmd_size > 10) 1225 && (softc->minimum_cmd_size <= 12)) 1226 softc->minimum_cmd_size = 12; 1227 else if (softc->minimum_cmd_size > 12) 1228 softc->minimum_cmd_size = 16; 1229 1230 /* 1231 * Register this media as a disk 1232 */ 1233 1234 mtx_unlock(periph->sim->mtx); 1235 softc->disk = disk_alloc(); 1236 softc->disk->d_open = daopen; 1237 softc->disk->d_close = daclose; 1238 softc->disk->d_strategy = dastrategy; 1239 softc->disk->d_dump = dadump; 1240 softc->disk->d_name = "da"; 1241 softc->disk->d_drv1 = periph; 1242 softc->disk->d_maxsize = DFLTPHYS; /* XXX: probably not arbitrary */ 1243 softc->disk->d_unit = periph->unit_number; 1244 softc->disk->d_flags = 0; 1245 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) 1246 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1247 disk_create(softc->disk, DISK_VERSION); 1248 mtx_lock(periph->sim->mtx); 1249 1250 /* 1251 * Add async callbacks for bus reset and 1252 * bus device reset calls. I don't bother 1253 * checking if this fails as, in most cases, 1254 * the system will function just fine without 1255 * them and the only alternative would be to 1256 * not attach the device on failure. 1257 */ 1258 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 1259 daasync, periph, periph->path); 1260 1261 /* 1262 * Take an exclusive refcount on the periph while dastart is called 1263 * to finish the probe. The reference will be dropped in dadone at 1264 * the end of probe. 1265 */ 1266 (void)cam_periph_hold(periph, PRIBIO); 1267 xpt_schedule(periph, /*priority*/5); 1268 1269 /* 1270 * Schedule a periodic event to occasionally send an 1271 * ordered tag to a device. 1272 */ 1273 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0); 1274 callout_reset(&softc->sendordered_c, 1275 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1276 dasendorderedtag, softc); 1277 1278 return(CAM_REQ_CMP); 1279 } 1280 1281 static void 1282 dastart(struct cam_periph *periph, union ccb *start_ccb) 1283 { 1284 struct da_softc *softc; 1285 1286 softc = (struct da_softc *)periph->softc; 1287 1288 switch (softc->state) { 1289 case DA_STATE_NORMAL: 1290 { 1291 /* Pull a buffer from the queue and get going on it */ 1292 struct bio *bp; 1293 1294 /* 1295 * See if there is a buf with work for us to do.. 1296 */ 1297 bp = bioq_first(&softc->bio_queue); 1298 if (periph->immediate_priority <= periph->pinfo.priority) { 1299 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1300 ("queuing for immediate ccb\n")); 1301 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1302 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1303 periph_links.sle); 1304 periph->immediate_priority = CAM_PRIORITY_NONE; 1305 wakeup(&periph->ccb_list); 1306 } else if (bp == NULL) { 1307 xpt_release_ccb(start_ccb); 1308 } else { 1309 u_int8_t tag_code; 1310 1311 bioq_remove(&softc->bio_queue, bp); 1312 1313 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1314 softc->flags &= ~DA_FLAG_NEED_OTAG; 1315 softc->ordered_tag_count++; 1316 tag_code = MSG_ORDERED_Q_TAG; 1317 } else { 1318 tag_code = MSG_SIMPLE_Q_TAG; 1319 } 1320 switch (bp->bio_cmd) { 1321 case BIO_READ: 1322 case BIO_WRITE: 1323 scsi_read_write(&start_ccb->csio, 1324 /*retries*/da_retry_count, 1325 /*cbfcnp*/dadone, 1326 /*tag_action*/tag_code, 1327 /*read_op*/bp->bio_cmd == BIO_READ, 1328 /*byte2*/0, 1329 softc->minimum_cmd_size, 1330 /*lba*/bp->bio_pblkno, 1331 /*block_count*/bp->bio_bcount / 1332 softc->params.secsize, 1333 /*data_ptr*/ bp->bio_data, 1334 /*dxfer_len*/ bp->bio_bcount, 1335 /*sense_len*/SSD_FULL_SIZE, 1336 /*timeout*/da_default_timeout*1000); 1337 break; 1338 case BIO_FLUSH: 1339 scsi_synchronize_cache(&start_ccb->csio, 1340 /*retries*/1, 1341 /*cbfcnp*/dadone, 1342 MSG_SIMPLE_Q_TAG, 1343 /*begin_lba*/0,/* Cover the whole disk */ 1344 /*lb_count*/0, 1345 SSD_FULL_SIZE, 1346 /*timeout*/da_default_timeout*1000); 1347 break; 1348 } 1349 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1350 1351 /* 1352 * Block out any asyncronous callbacks 1353 * while we touch the pending ccb list. 1354 */ 1355 LIST_INSERT_HEAD(&softc->pending_ccbs, 1356 &start_ccb->ccb_h, periph_links.le); 1357 softc->outstanding_cmds++; 1358 1359 /* We expect a unit attention from this device */ 1360 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1361 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1362 softc->flags &= ~DA_FLAG_RETRY_UA; 1363 } 1364 1365 start_ccb->ccb_h.ccb_bp = bp; 1366 bp = bioq_first(&softc->bio_queue); 1367 1368 xpt_action(start_ccb); 1369 } 1370 1371 if (bp != NULL) { 1372 /* Have more work to do, so ensure we stay scheduled */ 1373 xpt_schedule(periph, /* XXX priority */1); 1374 } 1375 break; 1376 } 1377 case DA_STATE_PROBE: 1378 { 1379 struct ccb_scsiio *csio; 1380 struct scsi_read_capacity_data *rcap; 1381 1382 rcap = (struct scsi_read_capacity_data *) 1383 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO); 1384 if (rcap == NULL) { 1385 printf("dastart: Couldn't malloc read_capacity data\n"); 1386 /* da_free_periph??? */ 1387 break; 1388 } 1389 csio = &start_ccb->csio; 1390 scsi_read_capacity(csio, 1391 /*retries*/4, 1392 dadone, 1393 MSG_SIMPLE_Q_TAG, 1394 rcap, 1395 SSD_FULL_SIZE, 1396 /*timeout*/5000); 1397 start_ccb->ccb_h.ccb_bp = NULL; 1398 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1399 xpt_action(start_ccb); 1400 break; 1401 } 1402 case DA_STATE_PROBE2: 1403 { 1404 struct ccb_scsiio *csio; 1405 struct scsi_read_capacity_data_long *rcaplong; 1406 1407 rcaplong = (struct scsi_read_capacity_data_long *) 1408 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); 1409 if (rcaplong == NULL) { 1410 printf("dastart: Couldn't malloc read_capacity data\n"); 1411 /* da_free_periph??? */ 1412 break; 1413 } 1414 csio = &start_ccb->csio; 1415 scsi_read_capacity_16(csio, 1416 /*retries*/ 4, 1417 /*cbfcnp*/ dadone, 1418 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1419 /*lba*/ 0, 1420 /*reladr*/ 0, 1421 /*pmi*/ 0, 1422 rcaplong, 1423 /*sense_len*/ SSD_FULL_SIZE, 1424 /*timeout*/ 60000); 1425 start_ccb->ccb_h.ccb_bp = NULL; 1426 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1427 xpt_action(start_ccb); 1428 break; 1429 } 1430 } 1431 } 1432 1433 static int 1434 cmd6workaround(union ccb *ccb) 1435 { 1436 struct scsi_rw_6 cmd6; 1437 struct scsi_rw_10 *cmd10; 1438 struct da_softc *softc; 1439 u_int8_t *cdb; 1440 int frozen; 1441 1442 cdb = ccb->csio.cdb_io.cdb_bytes; 1443 1444 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1445 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1446 (*cdb != READ_6 && *cdb != WRITE_6)) 1447 return 0; 1448 1449 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1450 "increasing minimum_cmd_size to 10.\n"); 1451 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1452 softc->minimum_cmd_size = 10; 1453 1454 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1455 cmd10 = (struct scsi_rw_10 *)cdb; 1456 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1457 cmd10->byte2 = 0; 1458 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1459 cmd10->reserved = 0; 1460 scsi_ulto2b(cmd6.length, cmd10->length); 1461 cmd10->control = cmd6.control; 1462 ccb->csio.cdb_len = sizeof(*cmd10); 1463 1464 /* Requeue request, unfreezing queue if necessary */ 1465 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1466 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1467 xpt_action(ccb); 1468 if (frozen) { 1469 cam_release_devq(ccb->ccb_h.path, 1470 /*relsim_flags*/0, 1471 /*reduction*/0, 1472 /*timeout*/0, 1473 /*getcount_only*/0); 1474 } 1475 return (ERESTART); 1476 } 1477 1478 static void 1479 dadone(struct cam_periph *periph, union ccb *done_ccb) 1480 { 1481 struct da_softc *softc; 1482 struct ccb_scsiio *csio; 1483 1484 softc = (struct da_softc *)periph->softc; 1485 csio = &done_ccb->csio; 1486 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1487 case DA_CCB_BUFFER_IO: 1488 { 1489 struct bio *bp; 1490 1491 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1492 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1493 int error; 1494 int sf; 1495 1496 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1497 sf = SF_RETRY_UA; 1498 else 1499 sf = 0; 1500 1501 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1502 if (error == ERESTART) { 1503 /* 1504 * A retry was scheuled, so 1505 * just return. 1506 */ 1507 return; 1508 } 1509 if (error != 0) { 1510 1511 if (error == ENXIO) { 1512 /* 1513 * Catastrophic error. Mark our pack as 1514 * invalid. 1515 */ 1516 /* 1517 * XXX See if this is really a media 1518 * XXX change first? 1519 */ 1520 xpt_print(periph->path, 1521 "Invalidating pack\n"); 1522 softc->flags |= DA_FLAG_PACK_INVALID; 1523 } 1524 1525 /* 1526 * return all queued I/O with EIO, so that 1527 * the client can retry these I/Os in the 1528 * proper order should it attempt to recover. 1529 */ 1530 bioq_flush(&softc->bio_queue, NULL, EIO); 1531 bp->bio_error = error; 1532 bp->bio_resid = bp->bio_bcount; 1533 bp->bio_flags |= BIO_ERROR; 1534 } else { 1535 bp->bio_resid = csio->resid; 1536 bp->bio_error = 0; 1537 if (bp->bio_resid != 0) 1538 bp->bio_flags |= BIO_ERROR; 1539 } 1540 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1541 cam_release_devq(done_ccb->ccb_h.path, 1542 /*relsim_flags*/0, 1543 /*reduction*/0, 1544 /*timeout*/0, 1545 /*getcount_only*/0); 1546 } else { 1547 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1548 panic("REQ_CMP with QFRZN"); 1549 bp->bio_resid = csio->resid; 1550 if (csio->resid > 0) 1551 bp->bio_flags |= BIO_ERROR; 1552 } 1553 1554 /* 1555 * Block out any asyncronous callbacks 1556 * while we touch the pending ccb list. 1557 */ 1558 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1559 softc->outstanding_cmds--; 1560 if (softc->outstanding_cmds == 0) 1561 softc->flags |= DA_FLAG_WENT_IDLE; 1562 1563 biodone(bp); 1564 break; 1565 } 1566 case DA_CCB_PROBE: 1567 case DA_CCB_PROBE2: 1568 { 1569 struct scsi_read_capacity_data *rdcap; 1570 struct scsi_read_capacity_data_long *rcaplong; 1571 char announce_buf[80]; 1572 1573 rdcap = NULL; 1574 rcaplong = NULL; 1575 if (softc->state == DA_STATE_PROBE) 1576 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1577 else 1578 rcaplong = (struct scsi_read_capacity_data_long *) 1579 csio->data_ptr; 1580 1581 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1582 struct disk_params *dp; 1583 uint32_t block_size; 1584 uint64_t maxsector; 1585 1586 if (softc->state == DA_STATE_PROBE) { 1587 block_size = scsi_4btoul(rdcap->length); 1588 maxsector = scsi_4btoul(rdcap->addr); 1589 1590 /* 1591 * According to SBC-2, if the standard 10 1592 * byte READ CAPACITY command returns 2^32, 1593 * we should issue the 16 byte version of 1594 * the command, since the device in question 1595 * has more sectors than can be represented 1596 * with the short version of the command. 1597 */ 1598 if (maxsector == 0xffffffff) { 1599 softc->state = DA_STATE_PROBE2; 1600 free(rdcap, M_SCSIDA); 1601 xpt_release_ccb(done_ccb); 1602 xpt_schedule(periph, /*priority*/5); 1603 return; 1604 } 1605 } else { 1606 block_size = scsi_4btoul(rcaplong->length); 1607 maxsector = scsi_8btou64(rcaplong->addr); 1608 } 1609 1610 /* 1611 * Because GEOM code just will panic us if we 1612 * give them an 'illegal' value we'll avoid that 1613 * here. 1614 */ 1615 if (block_size >= MAXPHYS || block_size == 0) { 1616 xpt_print(periph->path, 1617 "unsupportable block size %ju\n", 1618 (uintmax_t) block_size); 1619 announce_buf[0] = '\0'; 1620 cam_periph_invalidate(periph); 1621 } else { 1622 dasetgeom(periph, block_size, maxsector); 1623 dp = &softc->params; 1624 snprintf(announce_buf, sizeof(announce_buf), 1625 "%juMB (%ju %u byte sectors: %dH %dS/T " 1626 "%dC)", (uintmax_t) 1627 (((uintmax_t)dp->secsize * 1628 dp->sectors) / (1024*1024)), 1629 (uintmax_t)dp->sectors, 1630 dp->secsize, dp->heads, 1631 dp->secs_per_track, dp->cylinders); 1632 } 1633 } else { 1634 int error; 1635 1636 announce_buf[0] = '\0'; 1637 1638 /* 1639 * Retry any UNIT ATTENTION type errors. They 1640 * are expected at boot. 1641 */ 1642 error = daerror(done_ccb, CAM_RETRY_SELTO, 1643 SF_RETRY_UA|SF_NO_PRINT); 1644 if (error == ERESTART) { 1645 /* 1646 * A retry was scheuled, so 1647 * just return. 1648 */ 1649 return; 1650 } else if (error != 0) { 1651 struct scsi_sense_data *sense; 1652 int asc, ascq; 1653 int sense_key, error_code; 1654 int have_sense; 1655 cam_status status; 1656 struct ccb_getdev cgd; 1657 1658 /* Don't wedge this device's queue */ 1659 status = done_ccb->ccb_h.status; 1660 if ((status & CAM_DEV_QFRZN) != 0) 1661 cam_release_devq(done_ccb->ccb_h.path, 1662 /*relsim_flags*/0, 1663 /*reduction*/0, 1664 /*timeout*/0, 1665 /*getcount_only*/0); 1666 1667 1668 xpt_setup_ccb(&cgd.ccb_h, 1669 done_ccb->ccb_h.path, 1670 /* priority */ 1); 1671 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1672 xpt_action((union ccb *)&cgd); 1673 1674 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1675 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1676 || ((status & CAM_AUTOSNS_VALID) == 0)) 1677 have_sense = FALSE; 1678 else 1679 have_sense = TRUE; 1680 1681 if (have_sense) { 1682 sense = &csio->sense_data; 1683 scsi_extract_sense(sense, &error_code, 1684 &sense_key, 1685 &asc, &ascq); 1686 } 1687 /* 1688 * Attach to anything that claims to be a 1689 * direct access or optical disk device, 1690 * as long as it doesn't return a "Logical 1691 * unit not supported" (0x25) error. 1692 */ 1693 if ((have_sense) && (asc != 0x25) 1694 && (error_code == SSD_CURRENT_ERROR)) { 1695 const char *sense_key_desc; 1696 const char *asc_desc; 1697 1698 scsi_sense_desc(sense_key, asc, ascq, 1699 &cgd.inq_data, 1700 &sense_key_desc, 1701 &asc_desc); 1702 snprintf(announce_buf, 1703 sizeof(announce_buf), 1704 "Attempt to query device " 1705 "size failed: %s, %s", 1706 sense_key_desc, 1707 asc_desc); 1708 } else { 1709 if (have_sense) 1710 scsi_sense_print( 1711 &done_ccb->csio); 1712 else { 1713 xpt_print(periph->path, 1714 "got CAM status %#x\n", 1715 done_ccb->ccb_h.status); 1716 } 1717 1718 xpt_print(periph->path, "fatal error, " 1719 "failed to attach to device\n"); 1720 1721 /* 1722 * Free up resources. 1723 */ 1724 cam_periph_invalidate(periph); 1725 } 1726 } 1727 } 1728 free(csio->data_ptr, M_SCSIDA); 1729 if (announce_buf[0] != '\0') { 1730 xpt_announce_periph(periph, announce_buf); 1731 /* 1732 * Create our sysctl variables, now that we know 1733 * we have successfully attached. 1734 */ 1735 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1736 } 1737 softc->state = DA_STATE_NORMAL; 1738 /* 1739 * Since our peripheral may be invalidated by an error 1740 * above or an external event, we must release our CCB 1741 * before releasing the probe lock on the peripheral. 1742 * The peripheral will only go away once the last lock 1743 * is removed, and we need it around for the CCB release 1744 * operation. 1745 */ 1746 xpt_release_ccb(done_ccb); 1747 cam_periph_unhold(periph); 1748 return; 1749 } 1750 case DA_CCB_WAITING: 1751 { 1752 /* Caller will release the CCB */ 1753 wakeup(&done_ccb->ccb_h.cbfcnp); 1754 return; 1755 } 1756 case DA_CCB_DUMP: 1757 /* No-op. We're polling */ 1758 return; 1759 default: 1760 break; 1761 } 1762 xpt_release_ccb(done_ccb); 1763 } 1764 1765 static int 1766 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1767 { 1768 struct da_softc *softc; 1769 struct cam_periph *periph; 1770 int error; 1771 1772 periph = xpt_path_periph(ccb->ccb_h.path); 1773 softc = (struct da_softc *)periph->softc; 1774 1775 /* 1776 * Automatically detect devices that do not support 1777 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1778 */ 1779 error = 0; 1780 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1781 error = cmd6workaround(ccb); 1782 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1783 CAM_SCSI_STATUS_ERROR) 1784 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1785 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1786 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1787 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1788 int sense_key, error_code, asc, ascq; 1789 1790 scsi_extract_sense(&ccb->csio.sense_data, 1791 &error_code, &sense_key, &asc, &ascq); 1792 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1793 error = cmd6workaround(ccb); 1794 } 1795 if (error == ERESTART) 1796 return (ERESTART); 1797 1798 /* 1799 * XXX 1800 * Until we have a better way of doing pack validation, 1801 * don't treat UAs as errors. 1802 */ 1803 sense_flags |= SF_RETRY_UA; 1804 return(cam_periph_error(ccb, cam_flags, sense_flags, 1805 &softc->saved_ccb)); 1806 } 1807 1808 static void 1809 daprevent(struct cam_periph *periph, int action) 1810 { 1811 struct da_softc *softc; 1812 union ccb *ccb; 1813 int error; 1814 1815 softc = (struct da_softc *)periph->softc; 1816 1817 if (((action == PR_ALLOW) 1818 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1819 || ((action == PR_PREVENT) 1820 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1821 return; 1822 } 1823 1824 ccb = cam_periph_getccb(periph, /*priority*/1); 1825 1826 scsi_prevent(&ccb->csio, 1827 /*retries*/1, 1828 /*cbcfp*/dadone, 1829 MSG_SIMPLE_Q_TAG, 1830 action, 1831 SSD_FULL_SIZE, 1832 5000); 1833 1834 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1835 SF_RETRY_UA, softc->disk->d_devstat); 1836 1837 if (error == 0) { 1838 if (action == PR_ALLOW) 1839 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1840 else 1841 softc->flags |= DA_FLAG_PACK_LOCKED; 1842 } 1843 1844 xpt_release_ccb(ccb); 1845 } 1846 1847 static int 1848 dagetcapacity(struct cam_periph *periph) 1849 { 1850 struct da_softc *softc; 1851 union ccb *ccb; 1852 struct scsi_read_capacity_data *rcap; 1853 struct scsi_read_capacity_data_long *rcaplong; 1854 uint32_t block_len; 1855 uint64_t maxsector; 1856 int error; 1857 u_int32_t sense_flags; 1858 1859 softc = (struct da_softc *)periph->softc; 1860 block_len = 0; 1861 maxsector = 0; 1862 error = 0; 1863 sense_flags = SF_RETRY_UA; 1864 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1865 sense_flags |= SF_NO_PRINT; 1866 1867 /* Do a read capacity */ 1868 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1869 M_SCSIDA, 1870 M_NOWAIT); 1871 if (rcap == NULL) 1872 return (ENOMEM); 1873 1874 ccb = cam_periph_getccb(periph, /*priority*/1); 1875 scsi_read_capacity(&ccb->csio, 1876 /*retries*/4, 1877 /*cbfncp*/dadone, 1878 MSG_SIMPLE_Q_TAG, 1879 rcap, 1880 SSD_FULL_SIZE, 1881 /*timeout*/60000); 1882 ccb->ccb_h.ccb_bp = NULL; 1883 1884 error = cam_periph_runccb(ccb, daerror, 1885 /*cam_flags*/CAM_RETRY_SELTO, 1886 sense_flags, 1887 softc->disk->d_devstat); 1888 1889 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1890 cam_release_devq(ccb->ccb_h.path, 1891 /*relsim_flags*/0, 1892 /*reduction*/0, 1893 /*timeout*/0, 1894 /*getcount_only*/0); 1895 1896 if (error == 0) { 1897 block_len = scsi_4btoul(rcap->length); 1898 maxsector = scsi_4btoul(rcap->addr); 1899 1900 if (maxsector != 0xffffffff) 1901 goto done; 1902 } else 1903 goto done; 1904 1905 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1906 1907 scsi_read_capacity_16(&ccb->csio, 1908 /*retries*/ 4, 1909 /*cbfcnp*/ dadone, 1910 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1911 /*lba*/ 0, 1912 /*reladr*/ 0, 1913 /*pmi*/ 0, 1914 rcaplong, 1915 /*sense_len*/ SSD_FULL_SIZE, 1916 /*timeout*/ 60000); 1917 ccb->ccb_h.ccb_bp = NULL; 1918 1919 error = cam_periph_runccb(ccb, daerror, 1920 /*cam_flags*/CAM_RETRY_SELTO, 1921 sense_flags, 1922 softc->disk->d_devstat); 1923 1924 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1925 cam_release_devq(ccb->ccb_h.path, 1926 /*relsim_flags*/0, 1927 /*reduction*/0, 1928 /*timeout*/0, 1929 /*getcount_only*/0); 1930 1931 if (error == 0) { 1932 block_len = scsi_4btoul(rcaplong->length); 1933 maxsector = scsi_8btou64(rcaplong->addr); 1934 } 1935 1936 done: 1937 1938 if (error == 0) 1939 dasetgeom(periph, block_len, maxsector); 1940 1941 xpt_release_ccb(ccb); 1942 1943 free(rcap, M_SCSIDA); 1944 1945 return (error); 1946 } 1947 1948 static void 1949 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1950 { 1951 struct ccb_calc_geometry ccg; 1952 struct da_softc *softc; 1953 struct disk_params *dp; 1954 1955 softc = (struct da_softc *)periph->softc; 1956 1957 dp = &softc->params; 1958 dp->secsize = block_len; 1959 dp->sectors = maxsector + 1; 1960 /* 1961 * Have the controller provide us with a geometry 1962 * for this disk. The only time the geometry 1963 * matters is when we boot and the controller 1964 * is the only one knowledgeable enough to come 1965 * up with something that will make this a bootable 1966 * device. 1967 */ 1968 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1969 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1970 ccg.block_size = dp->secsize; 1971 ccg.volume_size = dp->sectors; 1972 ccg.heads = 0; 1973 ccg.secs_per_track = 0; 1974 ccg.cylinders = 0; 1975 xpt_action((union ccb*)&ccg); 1976 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1977 /* 1978 * We don't know what went wrong here- but just pick 1979 * a geometry so we don't have nasty things like divide 1980 * by zero. 1981 */ 1982 dp->heads = 255; 1983 dp->secs_per_track = 255; 1984 dp->cylinders = dp->sectors / (255 * 255); 1985 if (dp->cylinders == 0) { 1986 dp->cylinders = 1; 1987 } 1988 } else { 1989 dp->heads = ccg.heads; 1990 dp->secs_per_track = ccg.secs_per_track; 1991 dp->cylinders = ccg.cylinders; 1992 } 1993 } 1994 1995 static void 1996 dasendorderedtag(void *arg) 1997 { 1998 struct da_softc *softc = arg; 1999 2000 if (da_send_ordered) { 2001 if ((softc->ordered_tag_count == 0) 2002 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2003 softc->flags |= DA_FLAG_NEED_OTAG; 2004 } 2005 if (softc->outstanding_cmds > 0) 2006 softc->flags &= ~DA_FLAG_WENT_IDLE; 2007 2008 softc->ordered_tag_count = 0; 2009 } 2010 /* Queue us up again */ 2011 callout_reset(&softc->sendordered_c, 2012 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2013 dasendorderedtag, softc); 2014 } 2015 2016 /* 2017 * Step through all DA peripheral drivers, and if the device is still open, 2018 * sync the disk cache to physical media. 2019 */ 2020 static void 2021 dashutdown(void * arg, int howto) 2022 { 2023 struct cam_periph *periph; 2024 struct da_softc *softc; 2025 2026 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2027 union ccb ccb; 2028 2029 cam_periph_lock(periph); 2030 softc = (struct da_softc *)periph->softc; 2031 2032 /* 2033 * We only sync the cache if the drive is still open, and 2034 * if the drive is capable of it.. 2035 */ 2036 if (((softc->flags & DA_FLAG_OPEN) == 0) 2037 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2038 cam_periph_unlock(periph); 2039 continue; 2040 } 2041 2042 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2043 2044 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2045 scsi_synchronize_cache(&ccb.csio, 2046 /*retries*/1, 2047 /*cbfcnp*/dadone, 2048 MSG_SIMPLE_Q_TAG, 2049 /*begin_lba*/0, /* whole disk */ 2050 /*lb_count*/0, 2051 SSD_FULL_SIZE, 2052 60 * 60 * 1000); 2053 2054 xpt_polled_action(&ccb); 2055 2056 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2057 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2058 CAM_SCSI_STATUS_ERROR) 2059 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2060 int error_code, sense_key, asc, ascq; 2061 2062 scsi_extract_sense(&ccb.csio.sense_data, 2063 &error_code, &sense_key, 2064 &asc, &ascq); 2065 2066 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2067 scsi_sense_print(&ccb.csio); 2068 } else { 2069 xpt_print(periph->path, "Synchronize " 2070 "cache failed, status == 0x%x, scsi status " 2071 "== 0x%x\n", ccb.ccb_h.status, 2072 ccb.csio.scsi_status); 2073 } 2074 } 2075 2076 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2077 cam_release_devq(ccb.ccb_h.path, 2078 /*relsim_flags*/0, 2079 /*reduction*/0, 2080 /*timeout*/0, 2081 /*getcount_only*/0); 2082 cam_periph_unlock(periph); 2083 } 2084 } 2085 2086 #else /* !_KERNEL */ 2087 2088 /* 2089 * XXX This is only left out of the kernel build to silence warnings. If, 2090 * for some reason this function is used in the kernel, the ifdefs should 2091 * be moved so it is included both in the kernel and userland. 2092 */ 2093 void 2094 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2095 void (*cbfcnp)(struct cam_periph *, union ccb *), 2096 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2097 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2098 u_int32_t timeout) 2099 { 2100 struct scsi_format_unit *scsi_cmd; 2101 2102 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2103 scsi_cmd->opcode = FORMAT_UNIT; 2104 scsi_cmd->byte2 = byte2; 2105 scsi_ulto2b(ileave, scsi_cmd->interleave); 2106 2107 cam_fill_csio(csio, 2108 retries, 2109 cbfcnp, 2110 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2111 tag_action, 2112 data_ptr, 2113 dxfer_len, 2114 sense_len, 2115 sizeof(*scsi_cmd), 2116 timeout); 2117 } 2118 2119 #endif /* _KERNEL */
Cache object: b67e270772b2c79f7144f81d912b2313
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