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