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/8.0/sys/cam/scsi/scsi_da.c 197217 2009-09-15 11:23:59Z pjd $"); 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 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A 541 * PR: 129858 542 */ 543 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*", 544 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 545 }, 546 { 547 /* 548 * Samsung YP-U3 mp3-player 549 * PR: 125398 550 */ 551 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3", 552 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 553 }, 554 { 555 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*", 556 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 557 }, 558 { 559 /* 560 * Sony Cyber-Shot DSC cameras 561 * PR: usb/137035 562 */ 563 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 564 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 565 } 566 }; 567 568 static disk_strategy_t dastrategy; 569 static dumper_t dadump; 570 static periph_init_t dainit; 571 static void daasync(void *callback_arg, u_int32_t code, 572 struct cam_path *path, void *arg); 573 static void dasysctlinit(void *context, int pending); 574 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 575 static periph_ctor_t daregister; 576 static periph_dtor_t dacleanup; 577 static periph_start_t dastart; 578 static periph_oninv_t daoninvalidate; 579 static void dadone(struct cam_periph *periph, 580 union ccb *done_ccb); 581 static int daerror(union ccb *ccb, u_int32_t cam_flags, 582 u_int32_t sense_flags); 583 static void daprevent(struct cam_periph *periph, int action); 584 static int dagetcapacity(struct cam_periph *periph); 585 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 586 uint64_t maxsector); 587 static timeout_t dasendorderedtag; 588 static void dashutdown(void *arg, int howto); 589 590 #ifndef DA_DEFAULT_TIMEOUT 591 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 592 #endif 593 594 #ifndef DA_DEFAULT_RETRY 595 #define DA_DEFAULT_RETRY 4 596 #endif 597 598 #ifndef DA_DEFAULT_SEND_ORDERED 599 #define DA_DEFAULT_SEND_ORDERED 1 600 #endif 601 602 603 static int da_retry_count = DA_DEFAULT_RETRY; 604 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 605 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 606 607 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 608 "CAM Direct Access Disk driver"); 609 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 610 &da_retry_count, 0, "Normal I/O retry count"); 611 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 612 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 613 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 614 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 615 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 616 &da_send_ordered, 0, "Send Ordered Tags"); 617 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 618 619 /* 620 * DA_ORDEREDTAG_INTERVAL determines how often, relative 621 * to the default timeout, we check to see whether an ordered 622 * tagged transaction is appropriate to prevent simple tag 623 * starvation. Since we'd like to ensure that there is at least 624 * 1/2 of the timeout length left for a starved transaction to 625 * complete after we've sent an ordered tag, we must poll at least 626 * four times in every timeout period. This takes care of the worst 627 * case where a starved transaction starts during an interval that 628 * meets the requirement "don't send an ordered tag" test so it takes 629 * us two intervals to determine that a tag must be sent. 630 */ 631 #ifndef DA_ORDEREDTAG_INTERVAL 632 #define DA_ORDEREDTAG_INTERVAL 4 633 #endif 634 635 static struct periph_driver dadriver = 636 { 637 dainit, "da", 638 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 639 }; 640 641 PERIPHDRIVER_DECLARE(da, dadriver); 642 643 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); 644 645 static int 646 daopen(struct disk *dp) 647 { 648 struct cam_periph *periph; 649 struct da_softc *softc; 650 int unit; 651 int error; 652 653 periph = (struct cam_periph *)dp->d_drv1; 654 if (periph == NULL) { 655 return (ENXIO); 656 } 657 658 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 659 return(ENXIO); 660 } 661 662 cam_periph_lock(periph); 663 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 664 cam_periph_unlock(periph); 665 cam_periph_release(periph); 666 return (error); 667 } 668 669 unit = periph->unit_number; 670 softc = (struct da_softc *)periph->softc; 671 softc->flags |= DA_FLAG_OPEN; 672 673 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 674 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 675 unit)); 676 677 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 678 /* Invalidate our pack information. */ 679 softc->flags &= ~DA_FLAG_PACK_INVALID; 680 } 681 682 error = dagetcapacity(periph); 683 684 if (error == 0) { 685 686 softc->disk->d_sectorsize = softc->params.secsize; 687 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 688 /* XXX: these are not actually "firmware" values, so they may be wrong */ 689 softc->disk->d_fwsectors = softc->params.secs_per_track; 690 softc->disk->d_fwheads = softc->params.heads; 691 softc->disk->d_devstat->block_size = softc->params.secsize; 692 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 693 694 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 695 (softc->quirks & DA_Q_NO_PREVENT) == 0) 696 daprevent(periph, PR_PREVENT); 697 } else 698 softc->flags &= ~DA_FLAG_OPEN; 699 700 cam_periph_unhold(periph); 701 cam_periph_unlock(periph); 702 703 if (error != 0) { 704 cam_periph_release(periph); 705 } 706 return (error); 707 } 708 709 static int 710 daclose(struct disk *dp) 711 { 712 struct cam_periph *periph; 713 struct da_softc *softc; 714 int error; 715 716 periph = (struct cam_periph *)dp->d_drv1; 717 if (periph == NULL) 718 return (ENXIO); 719 720 cam_periph_lock(periph); 721 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 722 cam_periph_unlock(periph); 723 cam_periph_release(periph); 724 return (error); 725 } 726 727 softc = (struct da_softc *)periph->softc; 728 729 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 730 union ccb *ccb; 731 732 ccb = cam_periph_getccb(periph, /*priority*/1); 733 734 scsi_synchronize_cache(&ccb->csio, 735 /*retries*/1, 736 /*cbfcnp*/dadone, 737 MSG_SIMPLE_Q_TAG, 738 /*begin_lba*/0,/* Cover the whole disk */ 739 /*lb_count*/0, 740 SSD_FULL_SIZE, 741 5 * 60 * 1000); 742 743 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 744 /*sense_flags*/SF_RETRY_UA, 745 softc->disk->d_devstat); 746 747 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 748 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 749 CAM_SCSI_STATUS_ERROR) { 750 int asc, ascq; 751 int sense_key, error_code; 752 753 scsi_extract_sense(&ccb->csio.sense_data, 754 &error_code, 755 &sense_key, 756 &asc, &ascq); 757 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 758 scsi_sense_print(&ccb->csio); 759 } else { 760 xpt_print(periph->path, "Synchronize cache " 761 "failed, status == 0x%x, scsi status == " 762 "0x%x\n", ccb->csio.ccb_h.status, 763 ccb->csio.scsi_status); 764 } 765 } 766 767 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 768 cam_release_devq(ccb->ccb_h.path, 769 /*relsim_flags*/0, 770 /*reduction*/0, 771 /*timeout*/0, 772 /*getcount_only*/0); 773 774 xpt_release_ccb(ccb); 775 776 } 777 778 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 779 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 780 daprevent(periph, PR_ALLOW); 781 /* 782 * If we've got removeable media, mark the blocksize as 783 * unavailable, since it could change when new media is 784 * inserted. 785 */ 786 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 787 } 788 789 softc->flags &= ~DA_FLAG_OPEN; 790 cam_periph_unhold(periph); 791 cam_periph_unlock(periph); 792 cam_periph_release(periph); 793 return (0); 794 } 795 796 /* 797 * Actually translate the requested transfer into one the physical driver 798 * can understand. The transfer is described by a buf and will include 799 * only one physical transfer. 800 */ 801 static void 802 dastrategy(struct bio *bp) 803 { 804 struct cam_periph *periph; 805 struct da_softc *softc; 806 807 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 808 if (periph == NULL) { 809 biofinish(bp, NULL, ENXIO); 810 return; 811 } 812 softc = (struct da_softc *)periph->softc; 813 814 cam_periph_lock(periph); 815 816 #if 0 817 /* 818 * check it's not too big a transfer for our adapter 819 */ 820 scsi_minphys(bp,&sd_switch); 821 #endif 822 823 /* 824 * Mask interrupts so that the pack cannot be invalidated until 825 * after we are in the queue. Otherwise, we might not properly 826 * clean up one of the buffers. 827 */ 828 829 /* 830 * If the device has been made invalid, error out 831 */ 832 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 833 cam_periph_unlock(periph); 834 biofinish(bp, NULL, ENXIO); 835 return; 836 } 837 838 /* 839 * Place it in the queue of disk activities for this disk 840 */ 841 bioq_disksort(&softc->bio_queue, bp); 842 843 /* 844 * Schedule ourselves for performing the work. 845 */ 846 xpt_schedule(periph, /* XXX priority */1); 847 cam_periph_unlock(periph); 848 849 return; 850 } 851 852 static int 853 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 854 { 855 struct cam_periph *periph; 856 struct da_softc *softc; 857 u_int secsize; 858 struct ccb_scsiio csio; 859 struct disk *dp; 860 861 dp = arg; 862 periph = dp->d_drv1; 863 if (periph == NULL) 864 return (ENXIO); 865 softc = (struct da_softc *)periph->softc; 866 cam_periph_lock(periph); 867 secsize = softc->params.secsize; 868 869 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 870 cam_periph_unlock(periph); 871 return (ENXIO); 872 } 873 874 if (length > 0) { 875 periph->flags |= CAM_PERIPH_POLLED; 876 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 877 csio.ccb_h.ccb_state = DA_CCB_DUMP; 878 scsi_read_write(&csio, 879 /*retries*/1, 880 dadone, 881 MSG_ORDERED_Q_TAG, 882 /*read*/FALSE, 883 /*byte2*/0, 884 /*minimum_cmd_size*/ softc->minimum_cmd_size, 885 offset / secsize, 886 length / secsize, 887 /*data_ptr*/(u_int8_t *) virtual, 888 /*dxfer_len*/length, 889 /*sense_len*/SSD_FULL_SIZE, 890 DA_DEFAULT_TIMEOUT * 1000); 891 xpt_polled_action((union ccb *)&csio); 892 893 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 894 printf("Aborting dump due to I/O error.\n"); 895 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 896 CAM_SCSI_STATUS_ERROR) 897 scsi_sense_print(&csio); 898 else 899 printf("status == 0x%x, scsi status == 0x%x\n", 900 csio.ccb_h.status, csio.scsi_status); 901 periph->flags |= CAM_PERIPH_POLLED; 902 return(EIO); 903 } 904 cam_periph_unlock(periph); 905 return(0); 906 } 907 908 /* 909 * Sync the disk cache contents to the physical media. 910 */ 911 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 912 913 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 914 csio.ccb_h.ccb_state = DA_CCB_DUMP; 915 scsi_synchronize_cache(&csio, 916 /*retries*/1, 917 /*cbfcnp*/dadone, 918 MSG_SIMPLE_Q_TAG, 919 /*begin_lba*/0,/* Cover the whole disk */ 920 /*lb_count*/0, 921 SSD_FULL_SIZE, 922 5 * 60 * 1000); 923 xpt_polled_action((union ccb *)&csio); 924 925 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 926 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 927 CAM_SCSI_STATUS_ERROR) { 928 int asc, ascq; 929 int sense_key, error_code; 930 931 scsi_extract_sense(&csio.sense_data, 932 &error_code, 933 &sense_key, 934 &asc, &ascq); 935 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 936 scsi_sense_print(&csio); 937 } else { 938 xpt_print(periph->path, "Synchronize cache " 939 "failed, status == 0x%x, scsi status == " 940 "0x%x\n", csio.ccb_h.status, 941 csio.scsi_status); 942 } 943 } 944 } 945 periph->flags &= ~CAM_PERIPH_POLLED; 946 cam_periph_unlock(periph); 947 return (0); 948 } 949 950 static void 951 dainit(void) 952 { 953 cam_status status; 954 955 /* 956 * Install a global async callback. This callback will 957 * receive async callbacks like "new device found". 958 */ 959 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 960 961 if (status != CAM_REQ_CMP) { 962 printf("da: Failed to attach master async callback " 963 "due to status 0x%x!\n", status); 964 } else if (da_send_ordered) { 965 966 /* Register our shutdown event handler */ 967 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 968 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 969 printf("dainit: shutdown event registration failed!\n"); 970 } 971 } 972 973 static void 974 daoninvalidate(struct cam_periph *periph) 975 { 976 struct da_softc *softc; 977 978 softc = (struct da_softc *)periph->softc; 979 980 /* 981 * De-register any async callbacks. 982 */ 983 xpt_register_async(0, daasync, periph, periph->path); 984 985 softc->flags |= DA_FLAG_PACK_INVALID; 986 987 /* 988 * Return all queued I/O with ENXIO. 989 * XXX Handle any transactions queued to the card 990 * with XPT_ABORT_CCB. 991 */ 992 bioq_flush(&softc->bio_queue, NULL, ENXIO); 993 994 disk_gone(softc->disk); 995 xpt_print(periph->path, "lost device\n"); 996 } 997 998 static void 999 dacleanup(struct cam_periph *periph) 1000 { 1001 struct da_softc *softc; 1002 1003 softc = (struct da_softc *)periph->softc; 1004 1005 xpt_print(periph->path, "removing device entry\n"); 1006 cam_periph_unlock(periph); 1007 1008 /* 1009 * If we can't free the sysctl tree, oh well... 1010 */ 1011 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1012 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1013 xpt_print(periph->path, "can't remove sysctl context\n"); 1014 } 1015 1016 disk_destroy(softc->disk); 1017 callout_drain(&softc->sendordered_c); 1018 free(softc, M_DEVBUF); 1019 cam_periph_lock(periph); 1020 } 1021 1022 static void 1023 daasync(void *callback_arg, u_int32_t code, 1024 struct cam_path *path, void *arg) 1025 { 1026 struct cam_periph *periph; 1027 1028 periph = (struct cam_periph *)callback_arg; 1029 switch (code) { 1030 case AC_FOUND_DEVICE: 1031 { 1032 struct ccb_getdev *cgd; 1033 cam_status status; 1034 1035 cgd = (struct ccb_getdev *)arg; 1036 if (cgd == NULL) 1037 break; 1038 1039 if (cgd->protocol != PROTO_SCSI) 1040 break; 1041 1042 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1043 && SID_TYPE(&cgd->inq_data) != T_RBC 1044 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1045 break; 1046 1047 /* 1048 * Allocate a peripheral instance for 1049 * this device and start the probe 1050 * process. 1051 */ 1052 status = cam_periph_alloc(daregister, daoninvalidate, 1053 dacleanup, dastart, 1054 "da", CAM_PERIPH_BIO, 1055 cgd->ccb_h.path, daasync, 1056 AC_FOUND_DEVICE, cgd); 1057 1058 if (status != CAM_REQ_CMP 1059 && status != CAM_REQ_INPROG) 1060 printf("daasync: Unable to attach to new device " 1061 "due to status 0x%x\n", status); 1062 break; 1063 } 1064 case AC_SENT_BDR: 1065 case AC_BUS_RESET: 1066 { 1067 struct da_softc *softc; 1068 struct ccb_hdr *ccbh; 1069 1070 softc = (struct da_softc *)periph->softc; 1071 /* 1072 * Don't fail on the expected unit attention 1073 * that will occur. 1074 */ 1075 softc->flags |= DA_FLAG_RETRY_UA; 1076 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1077 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1078 /* FALLTHROUGH*/ 1079 } 1080 default: 1081 cam_periph_async(periph, code, path, arg); 1082 break; 1083 } 1084 } 1085 1086 static void 1087 dasysctlinit(void *context, int pending) 1088 { 1089 struct cam_periph *periph; 1090 struct da_softc *softc; 1091 char tmpstr[80], tmpstr2[80]; 1092 1093 periph = (struct cam_periph *)context; 1094 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1095 return; 1096 1097 softc = (struct da_softc *)periph->softc; 1098 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1099 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1100 1101 sysctl_ctx_init(&softc->sysctl_ctx); 1102 softc->flags |= DA_FLAG_SCTX_INIT; 1103 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1104 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1105 CTLFLAG_RD, 0, tmpstr); 1106 if (softc->sysctl_tree == NULL) { 1107 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1108 cam_periph_release(periph); 1109 return; 1110 } 1111 1112 /* 1113 * Now register the sysctl handler, so the user can the value on 1114 * the fly. 1115 */ 1116 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1117 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1118 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1119 "Minimum CDB size"); 1120 1121 cam_periph_release(periph); 1122 } 1123 1124 static int 1125 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1126 { 1127 int error, value; 1128 1129 value = *(int *)arg1; 1130 1131 error = sysctl_handle_int(oidp, &value, 0, req); 1132 1133 if ((error != 0) 1134 || (req->newptr == NULL)) 1135 return (error); 1136 1137 /* 1138 * Acceptable values here are 6, 10, 12 or 16. 1139 */ 1140 if (value < 6) 1141 value = 6; 1142 else if ((value > 6) 1143 && (value <= 10)) 1144 value = 10; 1145 else if ((value > 10) 1146 && (value <= 12)) 1147 value = 12; 1148 else if (value > 12) 1149 value = 16; 1150 1151 *(int *)arg1 = value; 1152 1153 return (0); 1154 } 1155 1156 static cam_status 1157 daregister(struct cam_periph *periph, void *arg) 1158 { 1159 struct da_softc *softc; 1160 struct ccb_pathinq cpi; 1161 struct ccb_getdev *cgd; 1162 char tmpstr[80]; 1163 caddr_t match; 1164 1165 cgd = (struct ccb_getdev *)arg; 1166 if (periph == NULL) { 1167 printf("daregister: periph was NULL!!\n"); 1168 return(CAM_REQ_CMP_ERR); 1169 } 1170 1171 if (cgd == NULL) { 1172 printf("daregister: no getdev CCB, can't register device\n"); 1173 return(CAM_REQ_CMP_ERR); 1174 } 1175 1176 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1177 M_NOWAIT|M_ZERO); 1178 1179 if (softc == NULL) { 1180 printf("daregister: Unable to probe new device. " 1181 "Unable to allocate softc\n"); 1182 return(CAM_REQ_CMP_ERR); 1183 } 1184 1185 LIST_INIT(&softc->pending_ccbs); 1186 softc->state = DA_STATE_PROBE; 1187 bioq_init(&softc->bio_queue); 1188 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1189 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1190 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1191 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1192 1193 periph->softc = softc; 1194 1195 /* 1196 * See if this device has any quirks. 1197 */ 1198 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1199 (caddr_t)da_quirk_table, 1200 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1201 sizeof(*da_quirk_table), scsi_inquiry_match); 1202 1203 if (match != NULL) 1204 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1205 else 1206 softc->quirks = DA_Q_NONE; 1207 1208 /* Check if the SIM does not want 6 byte commands */ 1209 bzero(&cpi, sizeof(cpi)); 1210 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1211 cpi.ccb_h.func_code = XPT_PATH_INQ; 1212 xpt_action((union ccb *)&cpi); 1213 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1214 softc->quirks |= DA_Q_NO_6_BYTE; 1215 1216 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1217 1218 /* 1219 * RBC devices don't have to support READ(6), only READ(10). 1220 */ 1221 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1222 softc->minimum_cmd_size = 10; 1223 else 1224 softc->minimum_cmd_size = 6; 1225 1226 /* 1227 * Load the user's default, if any. 1228 */ 1229 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1230 periph->unit_number); 1231 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1232 1233 /* 1234 * 6, 10, 12 and 16 are the currently permissible values. 1235 */ 1236 if (softc->minimum_cmd_size < 6) 1237 softc->minimum_cmd_size = 6; 1238 else if ((softc->minimum_cmd_size > 6) 1239 && (softc->minimum_cmd_size <= 10)) 1240 softc->minimum_cmd_size = 10; 1241 else if ((softc->minimum_cmd_size > 10) 1242 && (softc->minimum_cmd_size <= 12)) 1243 softc->minimum_cmd_size = 12; 1244 else if (softc->minimum_cmd_size > 12) 1245 softc->minimum_cmd_size = 16; 1246 1247 /* 1248 * Register this media as a disk 1249 */ 1250 1251 mtx_unlock(periph->sim->mtx); 1252 softc->disk = disk_alloc(); 1253 softc->disk->d_open = daopen; 1254 softc->disk->d_close = daclose; 1255 softc->disk->d_strategy = dastrategy; 1256 softc->disk->d_dump = dadump; 1257 softc->disk->d_name = "da"; 1258 softc->disk->d_drv1 = periph; 1259 if (cpi.maxio == 0) 1260 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 1261 else if (cpi.maxio > MAXPHYS) 1262 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 1263 else 1264 softc->disk->d_maxsize = cpi.maxio; 1265 softc->disk->d_unit = periph->unit_number; 1266 softc->disk->d_flags = 0; 1267 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) 1268 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1269 strlcpy(softc->disk->d_ident, cgd->serial_num, 1270 MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1)); 1271 disk_create(softc->disk, DISK_VERSION); 1272 mtx_lock(periph->sim->mtx); 1273 1274 /* 1275 * Add async callbacks for bus reset and 1276 * bus device reset calls. I don't bother 1277 * checking if this fails as, in most cases, 1278 * the system will function just fine without 1279 * them and the only alternative would be to 1280 * not attach the device on failure. 1281 */ 1282 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 1283 daasync, periph, periph->path); 1284 1285 /* 1286 * Take an exclusive refcount on the periph while dastart is called 1287 * to finish the probe. The reference will be dropped in dadone at 1288 * the end of probe. 1289 */ 1290 (void)cam_periph_hold(periph, PRIBIO); 1291 xpt_schedule(periph, /*priority*/5); 1292 1293 /* 1294 * Schedule a periodic event to occasionally send an 1295 * ordered tag to a device. 1296 */ 1297 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0); 1298 callout_reset(&softc->sendordered_c, 1299 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1300 dasendorderedtag, softc); 1301 1302 return(CAM_REQ_CMP); 1303 } 1304 1305 static void 1306 dastart(struct cam_periph *periph, union ccb *start_ccb) 1307 { 1308 struct da_softc *softc; 1309 1310 softc = (struct da_softc *)periph->softc; 1311 1312 switch (softc->state) { 1313 case DA_STATE_NORMAL: 1314 { 1315 /* Pull a buffer from the queue and get going on it */ 1316 struct bio *bp; 1317 1318 /* 1319 * See if there is a buf with work for us to do.. 1320 */ 1321 bp = bioq_first(&softc->bio_queue); 1322 if (periph->immediate_priority <= periph->pinfo.priority) { 1323 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1324 ("queuing for immediate ccb\n")); 1325 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1326 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1327 periph_links.sle); 1328 periph->immediate_priority = CAM_PRIORITY_NONE; 1329 wakeup(&periph->ccb_list); 1330 } else if (bp == NULL) { 1331 xpt_release_ccb(start_ccb); 1332 } else { 1333 u_int8_t tag_code; 1334 1335 bioq_remove(&softc->bio_queue, bp); 1336 1337 if ((softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1338 softc->flags &= ~DA_FLAG_NEED_OTAG; 1339 softc->ordered_tag_count++; 1340 tag_code = MSG_ORDERED_Q_TAG; 1341 } else { 1342 tag_code = MSG_SIMPLE_Q_TAG; 1343 } 1344 switch (bp->bio_cmd) { 1345 case BIO_READ: 1346 case BIO_WRITE: 1347 scsi_read_write(&start_ccb->csio, 1348 /*retries*/da_retry_count, 1349 /*cbfcnp*/dadone, 1350 /*tag_action*/tag_code, 1351 /*read_op*/bp->bio_cmd == BIO_READ, 1352 /*byte2*/0, 1353 softc->minimum_cmd_size, 1354 /*lba*/bp->bio_pblkno, 1355 /*block_count*/bp->bio_bcount / 1356 softc->params.secsize, 1357 /*data_ptr*/ bp->bio_data, 1358 /*dxfer_len*/ bp->bio_bcount, 1359 /*sense_len*/SSD_FULL_SIZE, 1360 /*timeout*/da_default_timeout*1000); 1361 break; 1362 case BIO_FLUSH: 1363 scsi_synchronize_cache(&start_ccb->csio, 1364 /*retries*/1, 1365 /*cbfcnp*/dadone, 1366 MSG_SIMPLE_Q_TAG, 1367 /*begin_lba*/0,/* Cover the whole disk */ 1368 /*lb_count*/0, 1369 SSD_FULL_SIZE, 1370 /*timeout*/da_default_timeout*1000); 1371 break; 1372 } 1373 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1374 1375 /* 1376 * Block out any asyncronous callbacks 1377 * while we touch the pending ccb list. 1378 */ 1379 LIST_INSERT_HEAD(&softc->pending_ccbs, 1380 &start_ccb->ccb_h, periph_links.le); 1381 softc->outstanding_cmds++; 1382 1383 /* We expect a unit attention from this device */ 1384 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1385 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1386 softc->flags &= ~DA_FLAG_RETRY_UA; 1387 } 1388 1389 start_ccb->ccb_h.ccb_bp = bp; 1390 bp = bioq_first(&softc->bio_queue); 1391 1392 xpt_action(start_ccb); 1393 } 1394 1395 if (bp != NULL) { 1396 /* Have more work to do, so ensure we stay scheduled */ 1397 xpt_schedule(periph, /* XXX priority */1); 1398 } 1399 break; 1400 } 1401 case DA_STATE_PROBE: 1402 { 1403 struct ccb_scsiio *csio; 1404 struct scsi_read_capacity_data *rcap; 1405 1406 rcap = (struct scsi_read_capacity_data *) 1407 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO); 1408 if (rcap == NULL) { 1409 printf("dastart: Couldn't malloc read_capacity data\n"); 1410 /* da_free_periph??? */ 1411 break; 1412 } 1413 csio = &start_ccb->csio; 1414 scsi_read_capacity(csio, 1415 /*retries*/4, 1416 dadone, 1417 MSG_SIMPLE_Q_TAG, 1418 rcap, 1419 SSD_FULL_SIZE, 1420 /*timeout*/5000); 1421 start_ccb->ccb_h.ccb_bp = NULL; 1422 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1423 xpt_action(start_ccb); 1424 break; 1425 } 1426 case DA_STATE_PROBE2: 1427 { 1428 struct ccb_scsiio *csio; 1429 struct scsi_read_capacity_data_long *rcaplong; 1430 1431 rcaplong = (struct scsi_read_capacity_data_long *) 1432 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); 1433 if (rcaplong == NULL) { 1434 printf("dastart: Couldn't malloc read_capacity data\n"); 1435 /* da_free_periph??? */ 1436 break; 1437 } 1438 csio = &start_ccb->csio; 1439 scsi_read_capacity_16(csio, 1440 /*retries*/ 4, 1441 /*cbfcnp*/ dadone, 1442 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1443 /*lba*/ 0, 1444 /*reladr*/ 0, 1445 /*pmi*/ 0, 1446 rcaplong, 1447 /*sense_len*/ SSD_FULL_SIZE, 1448 /*timeout*/ 60000); 1449 start_ccb->ccb_h.ccb_bp = NULL; 1450 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1451 xpt_action(start_ccb); 1452 break; 1453 } 1454 } 1455 } 1456 1457 static int 1458 cmd6workaround(union ccb *ccb) 1459 { 1460 struct scsi_rw_6 cmd6; 1461 struct scsi_rw_10 *cmd10; 1462 struct da_softc *softc; 1463 u_int8_t *cdb; 1464 int frozen; 1465 1466 cdb = ccb->csio.cdb_io.cdb_bytes; 1467 1468 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1469 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1470 (*cdb != READ_6 && *cdb != WRITE_6)) 1471 return 0; 1472 1473 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1474 "increasing minimum_cmd_size to 10.\n"); 1475 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1476 softc->minimum_cmd_size = 10; 1477 1478 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1479 cmd10 = (struct scsi_rw_10 *)cdb; 1480 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1481 cmd10->byte2 = 0; 1482 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1483 cmd10->reserved = 0; 1484 scsi_ulto2b(cmd6.length, cmd10->length); 1485 cmd10->control = cmd6.control; 1486 ccb->csio.cdb_len = sizeof(*cmd10); 1487 1488 /* Requeue request, unfreezing queue if necessary */ 1489 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1490 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1491 xpt_action(ccb); 1492 if (frozen) { 1493 cam_release_devq(ccb->ccb_h.path, 1494 /*relsim_flags*/0, 1495 /*reduction*/0, 1496 /*timeout*/0, 1497 /*getcount_only*/0); 1498 } 1499 return (ERESTART); 1500 } 1501 1502 static void 1503 dadone(struct cam_periph *periph, union ccb *done_ccb) 1504 { 1505 struct da_softc *softc; 1506 struct ccb_scsiio *csio; 1507 1508 softc = (struct da_softc *)periph->softc; 1509 csio = &done_ccb->csio; 1510 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1511 case DA_CCB_BUFFER_IO: 1512 { 1513 struct bio *bp; 1514 1515 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1516 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1517 int error; 1518 int sf; 1519 1520 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1521 sf = SF_RETRY_UA; 1522 else 1523 sf = 0; 1524 1525 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1526 if (error == ERESTART) { 1527 /* 1528 * A retry was scheuled, so 1529 * just return. 1530 */ 1531 return; 1532 } 1533 if (error != 0) { 1534 1535 if (error == ENXIO) { 1536 /* 1537 * Catastrophic error. Mark our pack as 1538 * invalid. 1539 */ 1540 /* 1541 * XXX See if this is really a media 1542 * XXX change first? 1543 */ 1544 xpt_print(periph->path, 1545 "Invalidating pack\n"); 1546 softc->flags |= DA_FLAG_PACK_INVALID; 1547 } 1548 1549 /* 1550 * return all queued I/O with EIO, so that 1551 * the client can retry these I/Os in the 1552 * proper order should it attempt to recover. 1553 */ 1554 bioq_flush(&softc->bio_queue, NULL, EIO); 1555 bp->bio_error = error; 1556 bp->bio_resid = bp->bio_bcount; 1557 bp->bio_flags |= BIO_ERROR; 1558 } else { 1559 bp->bio_resid = csio->resid; 1560 bp->bio_error = 0; 1561 if (bp->bio_resid != 0) 1562 bp->bio_flags |= BIO_ERROR; 1563 } 1564 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1565 cam_release_devq(done_ccb->ccb_h.path, 1566 /*relsim_flags*/0, 1567 /*reduction*/0, 1568 /*timeout*/0, 1569 /*getcount_only*/0); 1570 } else { 1571 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1572 panic("REQ_CMP with QFRZN"); 1573 bp->bio_resid = csio->resid; 1574 if (csio->resid > 0) 1575 bp->bio_flags |= BIO_ERROR; 1576 } 1577 1578 /* 1579 * Block out any asyncronous callbacks 1580 * while we touch the pending ccb list. 1581 */ 1582 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1583 softc->outstanding_cmds--; 1584 if (softc->outstanding_cmds == 0) 1585 softc->flags |= DA_FLAG_WENT_IDLE; 1586 1587 biodone(bp); 1588 break; 1589 } 1590 case DA_CCB_PROBE: 1591 case DA_CCB_PROBE2: 1592 { 1593 struct scsi_read_capacity_data *rdcap; 1594 struct scsi_read_capacity_data_long *rcaplong; 1595 char announce_buf[80]; 1596 1597 rdcap = NULL; 1598 rcaplong = NULL; 1599 if (softc->state == DA_STATE_PROBE) 1600 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1601 else 1602 rcaplong = (struct scsi_read_capacity_data_long *) 1603 csio->data_ptr; 1604 1605 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1606 struct disk_params *dp; 1607 uint32_t block_size; 1608 uint64_t maxsector; 1609 1610 if (softc->state == DA_STATE_PROBE) { 1611 block_size = scsi_4btoul(rdcap->length); 1612 maxsector = scsi_4btoul(rdcap->addr); 1613 1614 /* 1615 * According to SBC-2, if the standard 10 1616 * byte READ CAPACITY command returns 2^32, 1617 * we should issue the 16 byte version of 1618 * the command, since the device in question 1619 * has more sectors than can be represented 1620 * with the short version of the command. 1621 */ 1622 if (maxsector == 0xffffffff) { 1623 softc->state = DA_STATE_PROBE2; 1624 free(rdcap, M_SCSIDA); 1625 xpt_release_ccb(done_ccb); 1626 xpt_schedule(periph, /*priority*/5); 1627 return; 1628 } 1629 } else { 1630 block_size = scsi_4btoul(rcaplong->length); 1631 maxsector = scsi_8btou64(rcaplong->addr); 1632 } 1633 1634 /* 1635 * Because GEOM code just will panic us if we 1636 * give them an 'illegal' value we'll avoid that 1637 * here. 1638 */ 1639 if (block_size >= MAXPHYS || block_size == 0) { 1640 xpt_print(periph->path, 1641 "unsupportable block size %ju\n", 1642 (uintmax_t) block_size); 1643 announce_buf[0] = '\0'; 1644 cam_periph_invalidate(periph); 1645 } else { 1646 dasetgeom(periph, block_size, maxsector); 1647 dp = &softc->params; 1648 snprintf(announce_buf, sizeof(announce_buf), 1649 "%juMB (%ju %u byte sectors: %dH %dS/T " 1650 "%dC)", (uintmax_t) 1651 (((uintmax_t)dp->secsize * 1652 dp->sectors) / (1024*1024)), 1653 (uintmax_t)dp->sectors, 1654 dp->secsize, dp->heads, 1655 dp->secs_per_track, dp->cylinders); 1656 } 1657 } else { 1658 int error; 1659 1660 announce_buf[0] = '\0'; 1661 1662 /* 1663 * Retry any UNIT ATTENTION type errors. They 1664 * are expected at boot. 1665 */ 1666 error = daerror(done_ccb, CAM_RETRY_SELTO, 1667 SF_RETRY_UA|SF_NO_PRINT); 1668 if (error == ERESTART) { 1669 /* 1670 * A retry was scheuled, so 1671 * just return. 1672 */ 1673 return; 1674 } else if (error != 0) { 1675 struct scsi_sense_data *sense; 1676 int asc, ascq; 1677 int sense_key, error_code; 1678 int have_sense; 1679 cam_status status; 1680 struct ccb_getdev cgd; 1681 1682 /* Don't wedge this device's queue */ 1683 status = done_ccb->ccb_h.status; 1684 if ((status & CAM_DEV_QFRZN) != 0) 1685 cam_release_devq(done_ccb->ccb_h.path, 1686 /*relsim_flags*/0, 1687 /*reduction*/0, 1688 /*timeout*/0, 1689 /*getcount_only*/0); 1690 1691 1692 xpt_setup_ccb(&cgd.ccb_h, 1693 done_ccb->ccb_h.path, 1694 /* priority */ 1); 1695 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1696 xpt_action((union ccb *)&cgd); 1697 1698 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1699 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1700 || ((status & CAM_AUTOSNS_VALID) == 0)) 1701 have_sense = FALSE; 1702 else 1703 have_sense = TRUE; 1704 1705 if (have_sense) { 1706 sense = &csio->sense_data; 1707 scsi_extract_sense(sense, &error_code, 1708 &sense_key, 1709 &asc, &ascq); 1710 } 1711 /* 1712 * Attach to anything that claims to be a 1713 * direct access or optical disk device, 1714 * as long as it doesn't return a "Logical 1715 * unit not supported" (0x25) error. 1716 */ 1717 if ((have_sense) && (asc != 0x25) 1718 && (error_code == SSD_CURRENT_ERROR)) { 1719 const char *sense_key_desc; 1720 const char *asc_desc; 1721 1722 scsi_sense_desc(sense_key, asc, ascq, 1723 &cgd.inq_data, 1724 &sense_key_desc, 1725 &asc_desc); 1726 snprintf(announce_buf, 1727 sizeof(announce_buf), 1728 "Attempt to query device " 1729 "size failed: %s, %s", 1730 sense_key_desc, 1731 asc_desc); 1732 } else { 1733 if (have_sense) 1734 scsi_sense_print( 1735 &done_ccb->csio); 1736 else { 1737 xpt_print(periph->path, 1738 "got CAM status %#x\n", 1739 done_ccb->ccb_h.status); 1740 } 1741 1742 xpt_print(periph->path, "fatal error, " 1743 "failed to attach to device\n"); 1744 1745 /* 1746 * Free up resources. 1747 */ 1748 cam_periph_invalidate(periph); 1749 } 1750 } 1751 } 1752 free(csio->data_ptr, M_SCSIDA); 1753 if (announce_buf[0] != '\0') { 1754 xpt_announce_periph(periph, announce_buf); 1755 /* 1756 * Create our sysctl variables, now that we know 1757 * we have successfully attached. 1758 */ 1759 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1760 } 1761 softc->state = DA_STATE_NORMAL; 1762 /* 1763 * Since our peripheral may be invalidated by an error 1764 * above or an external event, we must release our CCB 1765 * before releasing the probe lock on the peripheral. 1766 * The peripheral will only go away once the last lock 1767 * is removed, and we need it around for the CCB release 1768 * operation. 1769 */ 1770 xpt_release_ccb(done_ccb); 1771 cam_periph_unhold(periph); 1772 return; 1773 } 1774 case DA_CCB_WAITING: 1775 { 1776 /* Caller will release the CCB */ 1777 wakeup(&done_ccb->ccb_h.cbfcnp); 1778 return; 1779 } 1780 case DA_CCB_DUMP: 1781 /* No-op. We're polling */ 1782 return; 1783 default: 1784 break; 1785 } 1786 xpt_release_ccb(done_ccb); 1787 } 1788 1789 static int 1790 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1791 { 1792 struct da_softc *softc; 1793 struct cam_periph *periph; 1794 int error; 1795 1796 periph = xpt_path_periph(ccb->ccb_h.path); 1797 softc = (struct da_softc *)periph->softc; 1798 1799 /* 1800 * Automatically detect devices that do not support 1801 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1802 */ 1803 error = 0; 1804 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1805 error = cmd6workaround(ccb); 1806 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1807 CAM_SCSI_STATUS_ERROR) 1808 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1809 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1810 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1811 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1812 int sense_key, error_code, asc, ascq; 1813 1814 scsi_extract_sense(&ccb->csio.sense_data, 1815 &error_code, &sense_key, &asc, &ascq); 1816 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1817 error = cmd6workaround(ccb); 1818 } 1819 if (error == ERESTART) 1820 return (ERESTART); 1821 1822 /* 1823 * XXX 1824 * Until we have a better way of doing pack validation, 1825 * don't treat UAs as errors. 1826 */ 1827 sense_flags |= SF_RETRY_UA; 1828 return(cam_periph_error(ccb, cam_flags, sense_flags, 1829 &softc->saved_ccb)); 1830 } 1831 1832 static void 1833 daprevent(struct cam_periph *periph, int action) 1834 { 1835 struct da_softc *softc; 1836 union ccb *ccb; 1837 int error; 1838 1839 softc = (struct da_softc *)periph->softc; 1840 1841 if (((action == PR_ALLOW) 1842 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1843 || ((action == PR_PREVENT) 1844 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1845 return; 1846 } 1847 1848 ccb = cam_periph_getccb(periph, /*priority*/1); 1849 1850 scsi_prevent(&ccb->csio, 1851 /*retries*/1, 1852 /*cbcfp*/dadone, 1853 MSG_SIMPLE_Q_TAG, 1854 action, 1855 SSD_FULL_SIZE, 1856 5000); 1857 1858 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1859 SF_RETRY_UA, softc->disk->d_devstat); 1860 1861 if (error == 0) { 1862 if (action == PR_ALLOW) 1863 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1864 else 1865 softc->flags |= DA_FLAG_PACK_LOCKED; 1866 } 1867 1868 xpt_release_ccb(ccb); 1869 } 1870 1871 static int 1872 dagetcapacity(struct cam_periph *periph) 1873 { 1874 struct da_softc *softc; 1875 union ccb *ccb; 1876 struct scsi_read_capacity_data *rcap; 1877 struct scsi_read_capacity_data_long *rcaplong; 1878 uint32_t block_len; 1879 uint64_t maxsector; 1880 int error; 1881 u_int32_t sense_flags; 1882 1883 softc = (struct da_softc *)periph->softc; 1884 block_len = 0; 1885 maxsector = 0; 1886 error = 0; 1887 sense_flags = SF_RETRY_UA; 1888 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1889 sense_flags |= SF_NO_PRINT; 1890 1891 /* Do a read capacity */ 1892 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1893 M_SCSIDA, 1894 M_NOWAIT); 1895 if (rcap == NULL) 1896 return (ENOMEM); 1897 1898 ccb = cam_periph_getccb(periph, /*priority*/1); 1899 scsi_read_capacity(&ccb->csio, 1900 /*retries*/4, 1901 /*cbfncp*/dadone, 1902 MSG_SIMPLE_Q_TAG, 1903 rcap, 1904 SSD_FULL_SIZE, 1905 /*timeout*/60000); 1906 ccb->ccb_h.ccb_bp = NULL; 1907 1908 error = cam_periph_runccb(ccb, daerror, 1909 /*cam_flags*/CAM_RETRY_SELTO, 1910 sense_flags, 1911 softc->disk->d_devstat); 1912 1913 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1914 cam_release_devq(ccb->ccb_h.path, 1915 /*relsim_flags*/0, 1916 /*reduction*/0, 1917 /*timeout*/0, 1918 /*getcount_only*/0); 1919 1920 if (error == 0) { 1921 block_len = scsi_4btoul(rcap->length); 1922 maxsector = scsi_4btoul(rcap->addr); 1923 1924 if (maxsector != 0xffffffff) 1925 goto done; 1926 } else 1927 goto done; 1928 1929 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1930 1931 scsi_read_capacity_16(&ccb->csio, 1932 /*retries*/ 4, 1933 /*cbfcnp*/ dadone, 1934 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1935 /*lba*/ 0, 1936 /*reladr*/ 0, 1937 /*pmi*/ 0, 1938 rcaplong, 1939 /*sense_len*/ SSD_FULL_SIZE, 1940 /*timeout*/ 60000); 1941 ccb->ccb_h.ccb_bp = NULL; 1942 1943 error = cam_periph_runccb(ccb, daerror, 1944 /*cam_flags*/CAM_RETRY_SELTO, 1945 sense_flags, 1946 softc->disk->d_devstat); 1947 1948 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1949 cam_release_devq(ccb->ccb_h.path, 1950 /*relsim_flags*/0, 1951 /*reduction*/0, 1952 /*timeout*/0, 1953 /*getcount_only*/0); 1954 1955 if (error == 0) { 1956 block_len = scsi_4btoul(rcaplong->length); 1957 maxsector = scsi_8btou64(rcaplong->addr); 1958 } 1959 1960 done: 1961 1962 if (error == 0) 1963 dasetgeom(periph, block_len, maxsector); 1964 1965 xpt_release_ccb(ccb); 1966 1967 free(rcap, M_SCSIDA); 1968 1969 return (error); 1970 } 1971 1972 static void 1973 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 1974 { 1975 struct ccb_calc_geometry ccg; 1976 struct da_softc *softc; 1977 struct disk_params *dp; 1978 1979 softc = (struct da_softc *)periph->softc; 1980 1981 dp = &softc->params; 1982 dp->secsize = block_len; 1983 dp->sectors = maxsector + 1; 1984 /* 1985 * Have the controller provide us with a geometry 1986 * for this disk. The only time the geometry 1987 * matters is when we boot and the controller 1988 * is the only one knowledgeable enough to come 1989 * up with something that will make this a bootable 1990 * device. 1991 */ 1992 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1993 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1994 ccg.block_size = dp->secsize; 1995 ccg.volume_size = dp->sectors; 1996 ccg.heads = 0; 1997 ccg.secs_per_track = 0; 1998 ccg.cylinders = 0; 1999 xpt_action((union ccb*)&ccg); 2000 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2001 /* 2002 * We don't know what went wrong here- but just pick 2003 * a geometry so we don't have nasty things like divide 2004 * by zero. 2005 */ 2006 dp->heads = 255; 2007 dp->secs_per_track = 255; 2008 dp->cylinders = dp->sectors / (255 * 255); 2009 if (dp->cylinders == 0) { 2010 dp->cylinders = 1; 2011 } 2012 } else { 2013 dp->heads = ccg.heads; 2014 dp->secs_per_track = ccg.secs_per_track; 2015 dp->cylinders = ccg.cylinders; 2016 } 2017 } 2018 2019 static void 2020 dasendorderedtag(void *arg) 2021 { 2022 struct da_softc *softc = arg; 2023 2024 if (da_send_ordered) { 2025 if ((softc->ordered_tag_count == 0) 2026 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2027 softc->flags |= DA_FLAG_NEED_OTAG; 2028 } 2029 if (softc->outstanding_cmds > 0) 2030 softc->flags &= ~DA_FLAG_WENT_IDLE; 2031 2032 softc->ordered_tag_count = 0; 2033 } 2034 /* Queue us up again */ 2035 callout_reset(&softc->sendordered_c, 2036 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2037 dasendorderedtag, softc); 2038 } 2039 2040 /* 2041 * Step through all DA peripheral drivers, and if the device is still open, 2042 * sync the disk cache to physical media. 2043 */ 2044 static void 2045 dashutdown(void * arg, int howto) 2046 { 2047 struct cam_periph *periph; 2048 struct da_softc *softc; 2049 2050 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2051 union ccb ccb; 2052 2053 cam_periph_lock(periph); 2054 softc = (struct da_softc *)periph->softc; 2055 2056 /* 2057 * We only sync the cache if the drive is still open, and 2058 * if the drive is capable of it.. 2059 */ 2060 if (((softc->flags & DA_FLAG_OPEN) == 0) 2061 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2062 cam_periph_unlock(periph); 2063 continue; 2064 } 2065 2066 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2067 2068 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2069 scsi_synchronize_cache(&ccb.csio, 2070 /*retries*/1, 2071 /*cbfcnp*/dadone, 2072 MSG_SIMPLE_Q_TAG, 2073 /*begin_lba*/0, /* whole disk */ 2074 /*lb_count*/0, 2075 SSD_FULL_SIZE, 2076 60 * 60 * 1000); 2077 2078 xpt_polled_action(&ccb); 2079 2080 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2081 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2082 CAM_SCSI_STATUS_ERROR) 2083 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2084 int error_code, sense_key, asc, ascq; 2085 2086 scsi_extract_sense(&ccb.csio.sense_data, 2087 &error_code, &sense_key, 2088 &asc, &ascq); 2089 2090 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2091 scsi_sense_print(&ccb.csio); 2092 } else { 2093 xpt_print(periph->path, "Synchronize " 2094 "cache failed, status == 0x%x, scsi status " 2095 "== 0x%x\n", ccb.ccb_h.status, 2096 ccb.csio.scsi_status); 2097 } 2098 } 2099 2100 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2101 cam_release_devq(ccb.ccb_h.path, 2102 /*relsim_flags*/0, 2103 /*reduction*/0, 2104 /*timeout*/0, 2105 /*getcount_only*/0); 2106 cam_periph_unlock(periph); 2107 } 2108 } 2109 2110 #else /* !_KERNEL */ 2111 2112 /* 2113 * XXX This is only left out of the kernel build to silence warnings. If, 2114 * for some reason this function is used in the kernel, the ifdefs should 2115 * be moved so it is included both in the kernel and userland. 2116 */ 2117 void 2118 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2119 void (*cbfcnp)(struct cam_periph *, union ccb *), 2120 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2121 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2122 u_int32_t timeout) 2123 { 2124 struct scsi_format_unit *scsi_cmd; 2125 2126 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2127 scsi_cmd->opcode = FORMAT_UNIT; 2128 scsi_cmd->byte2 = byte2; 2129 scsi_ulto2b(ileave, scsi_cmd->interleave); 2130 2131 cam_fill_csio(csio, 2132 retries, 2133 cbfcnp, 2134 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2135 tag_action, 2136 data_ptr, 2137 dxfer_len, 2138 sense_len, 2139 sizeof(*scsi_cmd), 2140 timeout); 2141 } 2142 2143 #endif /* _KERNEL */
Cache object: 5d4e9b8dbf75d6277ddbb83bf467e52b
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