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