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 uint64_t wwpn; 134 }; 135 136 struct da_quirk_entry { 137 struct scsi_inquiry_pattern inq_pat; 138 da_quirks quirks; 139 }; 140 141 static const char quantum[] = "QUANTUM"; 142 static const char microp[] = "MICROP"; 143 144 static struct da_quirk_entry da_quirk_table[] = 145 { 146 /* SPI, FC devices */ 147 { 148 /* 149 * Fujitsu M2513A MO drives. 150 * Tested devices: M2513A2 firmware versions 1200 & 1300. 151 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 152 * Reported by: W.Scholten <whs@xs4all.nl> 153 */ 154 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 155 /*quirks*/ DA_Q_NO_SYNC_CACHE 156 }, 157 { 158 /* See above. */ 159 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 160 /*quirks*/ DA_Q_NO_SYNC_CACHE 161 }, 162 { 163 /* 164 * This particular Fujitsu drive doesn't like the 165 * synchronize cache command. 166 * Reported by: Tom Jackson <toj@gorilla.net> 167 */ 168 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 169 /*quirks*/ DA_Q_NO_SYNC_CACHE 170 }, 171 { 172 /* 173 * This drive doesn't like the synchronize cache command 174 * either. Reported by: Matthew Jacob <mjacob@feral.com> 175 * in NetBSD PR kern/6027, August 24, 1998. 176 */ 177 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 178 /*quirks*/ DA_Q_NO_SYNC_CACHE 179 }, 180 { 181 /* 182 * This drive doesn't like the synchronize cache command 183 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 184 * (PR 8882). 185 */ 186 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 187 /*quirks*/ DA_Q_NO_SYNC_CACHE 188 }, 189 { 190 /* 191 * Doesn't like the synchronize cache command. 192 * Reported by: Blaz Zupan <blaz@gold.amis.net> 193 */ 194 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 195 /*quirks*/ DA_Q_NO_SYNC_CACHE 196 }, 197 { 198 /* 199 * Doesn't like the synchronize cache command. 200 * Reported by: Blaz Zupan <blaz@gold.amis.net> 201 */ 202 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 203 /*quirks*/ DA_Q_NO_SYNC_CACHE 204 }, 205 { 206 /* 207 * Doesn't like the synchronize cache command. 208 */ 209 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 210 /*quirks*/ DA_Q_NO_SYNC_CACHE 211 }, 212 { 213 /* 214 * Doesn't like the synchronize cache command. 215 * Reported by: walter@pelissero.de 216 */ 217 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 218 /*quirks*/ DA_Q_NO_SYNC_CACHE 219 }, 220 { 221 /* 222 * Doesn't work correctly with 6 byte reads/writes. 223 * Returns illegal request, and points to byte 9 of the 224 * 6-byte CDB. 225 * Reported by: Adam McDougall <bsdx@spawnet.com> 226 */ 227 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 228 /*quirks*/ DA_Q_NO_6_BYTE 229 }, 230 { 231 /* See above. */ 232 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 233 /*quirks*/ DA_Q_NO_6_BYTE 234 }, 235 { 236 /* 237 * Doesn't like the synchronize cache command. 238 * Reported by: walter@pelissero.de 239 */ 240 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 241 /*quirks*/ DA_Q_NO_SYNC_CACHE 242 }, 243 { 244 /* 245 * The CISS RAID controllers do not support SYNC_CACHE 246 */ 247 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 248 /*quirks*/ DA_Q_NO_SYNC_CACHE 249 }, 250 /* USB mass storage devices supported by umass(4) */ 251 { 252 /* 253 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 254 * PR: kern/51675 255 */ 256 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 257 /*quirks*/ DA_Q_NO_SYNC_CACHE 258 }, 259 { 260 /* 261 * Power Quotient Int. (PQI) USB flash key 262 * PR: kern/53067 263 */ 264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 265 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 266 }, 267 { 268 /* 269 * Creative Nomad MUVO mp3 player (USB) 270 * PR: kern/53094 271 */ 272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 273 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 274 }, 275 { 276 /* 277 * Jungsoft NEXDISK USB flash key 278 * PR: kern/54737 279 */ 280 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 281 /*quirks*/ DA_Q_NO_SYNC_CACHE 282 }, 283 { 284 /* 285 * FreeDik USB Mini Data Drive 286 * PR: kern/54786 287 */ 288 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 289 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 290 }, 291 { 292 /* 293 * Sigmatel USB Flash MP3 Player 294 * PR: kern/57046 295 */ 296 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 297 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 298 }, 299 { 300 /* 301 * Neuros USB Digital Audio Computer 302 * PR: kern/63645 303 */ 304 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 305 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 306 }, 307 { 308 /* 309 * SEAGRAND NP-900 MP3 Player 310 * PR: kern/64563 311 */ 312 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 313 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 314 }, 315 { 316 /* 317 * iRiver iFP MP3 player (with UMS Firmware) 318 * PR: kern/54881, i386/63941, kern/66124 319 */ 320 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 321 /*quirks*/ DA_Q_NO_SYNC_CACHE 322 }, 323 { 324 /* 325 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 326 * PR: kern/70158 327 */ 328 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 329 /*quirks*/ DA_Q_NO_SYNC_CACHE 330 }, 331 { 332 /* 333 * ZICPlay USB MP3 Player with FM 334 * PR: kern/75057 335 */ 336 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 337 /*quirks*/ DA_Q_NO_SYNC_CACHE 338 }, 339 { 340 /* 341 * TEAC USB floppy mechanisms 342 */ 343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 344 /*quirks*/ DA_Q_NO_SYNC_CACHE 345 }, 346 { 347 /* 348 * Kingston DataTraveler II+ USB Pen-Drive. 349 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 350 */ 351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", 352 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 353 }, 354 { 355 /* 356 * Motorola E398 Mobile Phone (TransFlash memory card). 357 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 358 * PR: usb/89889 359 */ 360 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 361 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 362 }, 363 { 364 /* 365 * Qware BeatZkey! Pro 366 * PR: usb/79164 367 */ 368 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 369 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 370 }, 371 { 372 /* 373 * Time DPA20B 1GB MP3 Player 374 * PR: usb/81846 375 */ 376 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 377 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 378 }, 379 { 380 /* 381 * Samsung USB key 128Mb 382 * PR: usb/90081 383 */ 384 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 385 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 386 }, 387 { 388 /* 389 * Kingston DataTraveler 2.0 USB Flash memory. 390 * PR: usb/89196 391 */ 392 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 393 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 394 }, 395 { 396 /* 397 * Creative MUVO Slim mp3 player (USB) 398 * PR: usb/86131 399 */ 400 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 401 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 402 }, 403 { 404 /* 405 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 406 * PR: usb/80487 407 */ 408 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 409 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 410 }, 411 { 412 /* 413 * SanDisk Micro Cruzer 128MB 414 * PR: usb/75970 415 */ 416 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 417 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 418 }, 419 { 420 /* 421 * TOSHIBA TransMemory USB sticks 422 * PR: kern/94660 423 */ 424 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 425 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 426 }, 427 { 428 /* 429 * PNY USB Flash keys 430 * PR: usb/75578, usb/72344, usb/65436 431 */ 432 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 433 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 434 }, 435 { 436 /* 437 * Genesys 6-in-1 Card Reader 438 * PR: usb/94647 439 */ 440 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 441 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 442 }, 443 { 444 /* 445 * Rekam Digital CAMERA 446 * PR: usb/98713 447 */ 448 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 449 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 450 }, 451 { 452 /* 453 * iRiver H10 MP3 player 454 * PR: usb/102547 455 */ 456 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 457 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 458 }, 459 { 460 /* 461 * iRiver U10 MP3 player 462 * PR: usb/92306 463 */ 464 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", 465 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 466 }, 467 { 468 /* 469 * X-Micro Flash Disk 470 * PR: usb/96901 471 */ 472 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", 473 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 474 }, 475 { 476 /* 477 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 478 * PR: usb/96546 479 */ 480 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 481 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 482 }, 483 { 484 /* 485 * Denver MP3 player 486 * PR: usb/107101 487 */ 488 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 489 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 490 }, 491 { 492 /* 493 * Philips USB Key Audio KEY013 494 * PR: usb/68412 495 */ 496 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, 497 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 498 }, 499 { 500 /* 501 * JNC MP3 Player 502 * PR: usb/94439 503 */ 504 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", 505 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 506 }, 507 { 508 /* 509 * SAMSUNG MP0402H 510 * PR: usb/108427 511 */ 512 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, 513 /*quirks*/ DA_Q_NO_SYNC_CACHE 514 }, 515 { 516 /* 517 * I/O Magic USB flash - Giga Bank 518 * PR: usb/108810 519 */ 520 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, 521 /*quirks*/ DA_Q_NO_SYNC_CACHE 522 }, 523 { 524 /* 525 * JoyFly 128mb USB Flash Drive 526 * PR: 96133 527 */ 528 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", 529 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 530 }, 531 { 532 /* 533 * ChipsBnk usb stick 534 * PR: 103702 535 */ 536 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", 537 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 538 }, 539 { 540 /* 541 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A 542 * PR: 129858 543 */ 544 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*", 545 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 546 }, 547 { 548 /* 549 * Samsung YP-U3 mp3-player 550 * PR: 125398 551 */ 552 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3", 553 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 554 }, 555 { 556 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*", 557 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 558 }, 559 { 560 /* 561 * Sony Cyber-Shot DSC cameras 562 * PR: usb/137035 563 */ 564 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 565 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 566 } 567 }; 568 569 static disk_strategy_t dastrategy; 570 static dumper_t dadump; 571 static periph_init_t dainit; 572 static void daasync(void *callback_arg, u_int32_t code, 573 struct cam_path *path, void *arg); 574 static void dasysctlinit(void *context, int pending); 575 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 576 static periph_ctor_t daregister; 577 static periph_dtor_t dacleanup; 578 static periph_start_t dastart; 579 static periph_oninv_t daoninvalidate; 580 static void dadone(struct cam_periph *periph, 581 union ccb *done_ccb); 582 static int daerror(union ccb *ccb, u_int32_t cam_flags, 583 u_int32_t sense_flags); 584 static void daprevent(struct cam_periph *periph, int action); 585 static int dagetcapacity(struct cam_periph *periph); 586 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 587 uint64_t maxsector); 588 static timeout_t dasendorderedtag; 589 static void dashutdown(void *arg, int howto); 590 591 #ifndef DA_DEFAULT_TIMEOUT 592 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 593 #endif 594 595 #ifndef DA_DEFAULT_RETRY 596 #define DA_DEFAULT_RETRY 4 597 #endif 598 599 #ifndef DA_DEFAULT_SEND_ORDERED 600 #define DA_DEFAULT_SEND_ORDERED 1 601 #endif 602 603 604 static int da_retry_count = DA_DEFAULT_RETRY; 605 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 606 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 607 608 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 609 "CAM Direct Access Disk driver"); 610 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 611 &da_retry_count, 0, "Normal I/O retry count"); 612 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 613 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 614 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 615 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 616 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 617 &da_send_ordered, 0, "Send Ordered Tags"); 618 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 619 620 /* 621 * DA_ORDEREDTAG_INTERVAL determines how often, relative 622 * to the default timeout, we check to see whether an ordered 623 * tagged transaction is appropriate to prevent simple tag 624 * starvation. Since we'd like to ensure that there is at least 625 * 1/2 of the timeout length left for a starved transaction to 626 * complete after we've sent an ordered tag, we must poll at least 627 * four times in every timeout period. This takes care of the worst 628 * case where a starved transaction starts during an interval that 629 * meets the requirement "don't send an ordered tag" test so it takes 630 * us two intervals to determine that a tag must be sent. 631 */ 632 #ifndef DA_ORDEREDTAG_INTERVAL 633 #define DA_ORDEREDTAG_INTERVAL 4 634 #endif 635 636 static struct periph_driver dadriver = 637 { 638 dainit, "da", 639 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 640 }; 641 642 PERIPHDRIVER_DECLARE(da, dadriver); 643 644 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); 645 646 static int 647 daopen(struct disk *dp) 648 { 649 struct cam_periph *periph; 650 struct da_softc *softc; 651 int unit; 652 int error; 653 654 periph = (struct cam_periph *)dp->d_drv1; 655 if (periph == NULL) { 656 return (ENXIO); 657 } 658 659 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 660 return(ENXIO); 661 } 662 663 cam_periph_lock(periph); 664 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 665 cam_periph_unlock(periph); 666 cam_periph_release(periph); 667 return (error); 668 } 669 670 unit = periph->unit_number; 671 softc = (struct da_softc *)periph->softc; 672 softc->flags |= DA_FLAG_OPEN; 673 674 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 675 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 676 unit)); 677 678 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 679 /* Invalidate our pack information. */ 680 softc->flags &= ~DA_FLAG_PACK_INVALID; 681 } 682 683 error = dagetcapacity(periph); 684 685 if (error == 0) { 686 687 softc->disk->d_sectorsize = softc->params.secsize; 688 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 689 /* XXX: these are not actually "firmware" values, so they may be wrong */ 690 softc->disk->d_fwsectors = softc->params.secs_per_track; 691 softc->disk->d_fwheads = softc->params.heads; 692 softc->disk->d_devstat->block_size = softc->params.secsize; 693 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 694 695 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 696 (softc->quirks & DA_Q_NO_PREVENT) == 0) 697 daprevent(periph, PR_PREVENT); 698 } else 699 softc->flags &= ~DA_FLAG_OPEN; 700 701 cam_periph_unhold(periph); 702 cam_periph_unlock(periph); 703 704 if (error != 0) { 705 cam_periph_release(periph); 706 } 707 return (error); 708 } 709 710 static int 711 daclose(struct disk *dp) 712 { 713 struct cam_periph *periph; 714 struct da_softc *softc; 715 int error; 716 717 periph = (struct cam_periph *)dp->d_drv1; 718 if (periph == NULL) 719 return (ENXIO); 720 721 cam_periph_lock(periph); 722 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 723 cam_periph_unlock(periph); 724 cam_periph_release(periph); 725 return (error); 726 } 727 728 softc = (struct da_softc *)periph->softc; 729 730 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 731 union ccb *ccb; 732 733 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 734 735 scsi_synchronize_cache(&ccb->csio, 736 /*retries*/1, 737 /*cbfcnp*/dadone, 738 MSG_SIMPLE_Q_TAG, 739 /*begin_lba*/0,/* Cover the whole disk */ 740 /*lb_count*/0, 741 SSD_FULL_SIZE, 742 5 * 60 * 1000); 743 744 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 745 /*sense_flags*/SF_RETRY_UA, 746 softc->disk->d_devstat); 747 748 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 749 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 750 CAM_SCSI_STATUS_ERROR) { 751 int asc, ascq; 752 int sense_key, error_code; 753 754 scsi_extract_sense(&ccb->csio.sense_data, 755 &error_code, 756 &sense_key, 757 &asc, &ascq); 758 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 759 scsi_sense_print(&ccb->csio); 760 } else { 761 xpt_print(periph->path, "Synchronize cache " 762 "failed, status == 0x%x, scsi status == " 763 "0x%x\n", ccb->csio.ccb_h.status, 764 ccb->csio.scsi_status); 765 } 766 } 767 768 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 769 cam_release_devq(ccb->ccb_h.path, 770 /*relsim_flags*/0, 771 /*reduction*/0, 772 /*timeout*/0, 773 /*getcount_only*/0); 774 775 xpt_release_ccb(ccb); 776 777 } 778 779 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 780 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 781 daprevent(periph, PR_ALLOW); 782 /* 783 * If we've got removeable media, mark the blocksize as 784 * unavailable, since it could change when new media is 785 * inserted. 786 */ 787 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 788 } 789 790 softc->flags &= ~DA_FLAG_OPEN; 791 cam_periph_unhold(periph); 792 cam_periph_unlock(periph); 793 cam_periph_release(periph); 794 return (0); 795 } 796 797 /* 798 * Actually translate the requested transfer into one the physical driver 799 * can understand. The transfer is described by a buf and will include 800 * only one physical transfer. 801 */ 802 static void 803 dastrategy(struct bio *bp) 804 { 805 struct cam_periph *periph; 806 struct da_softc *softc; 807 808 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 809 if (periph == NULL) { 810 biofinish(bp, NULL, ENXIO); 811 return; 812 } 813 softc = (struct da_softc *)periph->softc; 814 815 cam_periph_lock(periph); 816 817 /* 818 * If the device has been made invalid, error out 819 */ 820 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 821 cam_periph_unlock(periph); 822 biofinish(bp, NULL, ENXIO); 823 return; 824 } 825 826 /* 827 * Place it in the queue of disk activities for this disk 828 */ 829 bioq_disksort(&softc->bio_queue, bp); 830 831 /* 832 * Schedule ourselves for performing the work. 833 */ 834 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 835 cam_periph_unlock(periph); 836 837 return; 838 } 839 840 static int 841 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 842 { 843 struct cam_periph *periph; 844 struct da_softc *softc; 845 u_int secsize; 846 struct ccb_scsiio csio; 847 struct disk *dp; 848 849 dp = arg; 850 periph = dp->d_drv1; 851 if (periph == NULL) 852 return (ENXIO); 853 softc = (struct da_softc *)periph->softc; 854 cam_periph_lock(periph); 855 secsize = softc->params.secsize; 856 857 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 858 cam_periph_unlock(periph); 859 return (ENXIO); 860 } 861 862 if (length > 0) { 863 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 864 csio.ccb_h.ccb_state = DA_CCB_DUMP; 865 scsi_read_write(&csio, 866 /*retries*/1, 867 dadone, 868 MSG_ORDERED_Q_TAG, 869 /*read*/FALSE, 870 /*byte2*/0, 871 /*minimum_cmd_size*/ softc->minimum_cmd_size, 872 offset / secsize, 873 length / secsize, 874 /*data_ptr*/(u_int8_t *) virtual, 875 /*dxfer_len*/length, 876 /*sense_len*/SSD_FULL_SIZE, 877 DA_DEFAULT_TIMEOUT * 1000); 878 xpt_polled_action((union ccb *)&csio); 879 880 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 881 printf("Aborting dump due to I/O error.\n"); 882 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 883 CAM_SCSI_STATUS_ERROR) 884 scsi_sense_print(&csio); 885 else 886 printf("status == 0x%x, scsi status == 0x%x\n", 887 csio.ccb_h.status, csio.scsi_status); 888 return(EIO); 889 } 890 cam_periph_unlock(periph); 891 return(0); 892 } 893 894 /* 895 * Sync the disk cache contents to the physical media. 896 */ 897 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 898 899 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 900 csio.ccb_h.ccb_state = DA_CCB_DUMP; 901 scsi_synchronize_cache(&csio, 902 /*retries*/1, 903 /*cbfcnp*/dadone, 904 MSG_SIMPLE_Q_TAG, 905 /*begin_lba*/0,/* Cover the whole disk */ 906 /*lb_count*/0, 907 SSD_FULL_SIZE, 908 5 * 60 * 1000); 909 xpt_polled_action((union ccb *)&csio); 910 911 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 912 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 913 CAM_SCSI_STATUS_ERROR) { 914 int asc, ascq; 915 int sense_key, error_code; 916 917 scsi_extract_sense(&csio.sense_data, 918 &error_code, 919 &sense_key, 920 &asc, &ascq); 921 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 922 scsi_sense_print(&csio); 923 } else { 924 xpt_print(periph->path, "Synchronize cache " 925 "failed, status == 0x%x, scsi status == " 926 "0x%x\n", csio.ccb_h.status, 927 csio.scsi_status); 928 } 929 } 930 } 931 cam_periph_unlock(periph); 932 return (0); 933 } 934 935 static void 936 dainit(void) 937 { 938 cam_status status; 939 940 /* 941 * Install a global async callback. This callback will 942 * receive async callbacks like "new device found". 943 */ 944 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 945 946 if (status != CAM_REQ_CMP) { 947 printf("da: Failed to attach master async callback " 948 "due to status 0x%x!\n", status); 949 } else if (da_send_ordered) { 950 951 /* Register our shutdown event handler */ 952 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 953 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 954 printf("dainit: shutdown event registration failed!\n"); 955 } 956 } 957 958 static void 959 daoninvalidate(struct cam_periph *periph) 960 { 961 struct da_softc *softc; 962 963 softc = (struct da_softc *)periph->softc; 964 965 /* 966 * De-register any async callbacks. 967 */ 968 xpt_register_async(0, daasync, periph, periph->path); 969 970 softc->flags |= DA_FLAG_PACK_INVALID; 971 972 /* 973 * Return all queued I/O with ENXIO. 974 * XXX Handle any transactions queued to the card 975 * with XPT_ABORT_CCB. 976 */ 977 bioq_flush(&softc->bio_queue, NULL, ENXIO); 978 979 disk_gone(softc->disk); 980 xpt_print(periph->path, "lost device\n"); 981 } 982 983 static void 984 dacleanup(struct cam_periph *periph) 985 { 986 struct da_softc *softc; 987 988 softc = (struct da_softc *)periph->softc; 989 990 xpt_print(periph->path, "removing device entry\n"); 991 cam_periph_unlock(periph); 992 993 /* 994 * If we can't free the sysctl tree, oh well... 995 */ 996 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 997 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 998 xpt_print(periph->path, "can't remove sysctl context\n"); 999 } 1000 1001 disk_destroy(softc->disk); 1002 callout_drain(&softc->sendordered_c); 1003 free(softc, M_DEVBUF); 1004 cam_periph_lock(periph); 1005 } 1006 1007 static void 1008 daasync(void *callback_arg, u_int32_t code, 1009 struct cam_path *path, void *arg) 1010 { 1011 struct cam_periph *periph; 1012 1013 periph = (struct cam_periph *)callback_arg; 1014 switch (code) { 1015 case AC_FOUND_DEVICE: 1016 { 1017 struct ccb_getdev *cgd; 1018 cam_status status; 1019 1020 cgd = (struct ccb_getdev *)arg; 1021 if (cgd == NULL) 1022 break; 1023 1024 if (cgd->protocol != PROTO_SCSI) 1025 break; 1026 1027 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1028 && SID_TYPE(&cgd->inq_data) != T_RBC 1029 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1030 break; 1031 1032 /* 1033 * Allocate a peripheral instance for 1034 * this device and start the probe 1035 * process. 1036 */ 1037 status = cam_periph_alloc(daregister, daoninvalidate, 1038 dacleanup, dastart, 1039 "da", CAM_PERIPH_BIO, 1040 cgd->ccb_h.path, daasync, 1041 AC_FOUND_DEVICE, cgd); 1042 1043 if (status != CAM_REQ_CMP 1044 && status != CAM_REQ_INPROG) 1045 printf("daasync: Unable to attach to new device " 1046 "due to status 0x%x\n", status); 1047 break; 1048 } 1049 case AC_SENT_BDR: 1050 case AC_BUS_RESET: 1051 { 1052 struct da_softc *softc; 1053 struct ccb_hdr *ccbh; 1054 1055 softc = (struct da_softc *)periph->softc; 1056 /* 1057 * Don't fail on the expected unit attention 1058 * that will occur. 1059 */ 1060 softc->flags |= DA_FLAG_RETRY_UA; 1061 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1062 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1063 /* FALLTHROUGH*/ 1064 } 1065 default: 1066 cam_periph_async(periph, code, path, arg); 1067 break; 1068 } 1069 } 1070 1071 static void 1072 dasysctlinit(void *context, int pending) 1073 { 1074 struct cam_periph *periph; 1075 struct da_softc *softc; 1076 char tmpstr[80], tmpstr2[80]; 1077 struct ccb_trans_settings cts; 1078 1079 periph = (struct cam_periph *)context; 1080 /* 1081 * periph was held for us when this task was enqueued 1082 */ 1083 if (periph->flags & CAM_PERIPH_INVALID) { 1084 cam_periph_release(periph); 1085 return; 1086 } 1087 1088 softc = (struct da_softc *)periph->softc; 1089 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1090 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1091 1092 sysctl_ctx_init(&softc->sysctl_ctx); 1093 softc->flags |= DA_FLAG_SCTX_INIT; 1094 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1095 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1096 CTLFLAG_RD, 0, tmpstr); 1097 if (softc->sysctl_tree == NULL) { 1098 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1099 cam_periph_release(periph); 1100 return; 1101 } 1102 1103 /* 1104 * Now register the sysctl handler, so the user can change the value on 1105 * the fly. 1106 */ 1107 SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1108 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1109 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1110 "Minimum CDB size"); 1111 1112 /* 1113 * Add some addressing info. 1114 */ 1115 memset(&cts, 0, sizeof (cts)); 1116 xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1); 1117 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1118 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1119 cam_periph_lock(periph); 1120 xpt_action((union ccb *)&cts); 1121 cam_periph_unlock(periph); 1122 if (cts.ccb_h.status != CAM_REQ_CMP) { 1123 cam_periph_release(periph); 1124 return; 1125 } 1126 if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) { 1127 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc; 1128 if (fc->valid & CTS_FC_VALID_WWPN) { 1129 softc->wwpn = fc->wwpn; 1130 SYSCTL_ADD_XLONG(&softc->sysctl_ctx, 1131 SYSCTL_CHILDREN(softc->sysctl_tree), 1132 OID_AUTO, "wwpn", CTLTYPE_QUAD | CTLFLAG_RD, 1133 &softc->wwpn, "World Wide Port Name"); 1134 } 1135 } 1136 cam_periph_release(periph); 1137 } 1138 1139 static int 1140 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1141 { 1142 int error, value; 1143 1144 value = *(int *)arg1; 1145 1146 error = sysctl_handle_int(oidp, &value, 0, req); 1147 1148 if ((error != 0) 1149 || (req->newptr == NULL)) 1150 return (error); 1151 1152 /* 1153 * Acceptable values here are 6, 10, 12 or 16. 1154 */ 1155 if (value < 6) 1156 value = 6; 1157 else if ((value > 6) 1158 && (value <= 10)) 1159 value = 10; 1160 else if ((value > 10) 1161 && (value <= 12)) 1162 value = 12; 1163 else if (value > 12) 1164 value = 16; 1165 1166 *(int *)arg1 = value; 1167 1168 return (0); 1169 } 1170 1171 static cam_status 1172 daregister(struct cam_periph *periph, void *arg) 1173 { 1174 struct da_softc *softc; 1175 struct ccb_pathinq cpi; 1176 struct ccb_getdev *cgd; 1177 char tmpstr[80]; 1178 caddr_t match; 1179 1180 cgd = (struct ccb_getdev *)arg; 1181 if (periph == NULL) { 1182 printf("daregister: periph was NULL!!\n"); 1183 return(CAM_REQ_CMP_ERR); 1184 } 1185 1186 if (cgd == NULL) { 1187 printf("daregister: no getdev CCB, can't register device\n"); 1188 return(CAM_REQ_CMP_ERR); 1189 } 1190 1191 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1192 M_NOWAIT|M_ZERO); 1193 1194 if (softc == NULL) { 1195 printf("daregister: Unable to probe new device. " 1196 "Unable to allocate softc\n"); 1197 return(CAM_REQ_CMP_ERR); 1198 } 1199 1200 LIST_INIT(&softc->pending_ccbs); 1201 softc->state = DA_STATE_PROBE; 1202 bioq_init(&softc->bio_queue); 1203 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1204 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1205 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1206 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1207 1208 periph->softc = softc; 1209 1210 /* 1211 * See if this device has any quirks. 1212 */ 1213 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1214 (caddr_t)da_quirk_table, 1215 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1216 sizeof(*da_quirk_table), scsi_inquiry_match); 1217 1218 if (match != NULL) 1219 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1220 else 1221 softc->quirks = DA_Q_NONE; 1222 1223 /* Check if the SIM does not want 6 byte commands */ 1224 bzero(&cpi, sizeof(cpi)); 1225 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1226 cpi.ccb_h.func_code = XPT_PATH_INQ; 1227 xpt_action((union ccb *)&cpi); 1228 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1229 softc->quirks |= DA_Q_NO_6_BYTE; 1230 1231 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1232 1233 /* 1234 * RBC devices don't have to support READ(6), only READ(10). 1235 */ 1236 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1237 softc->minimum_cmd_size = 10; 1238 else 1239 softc->minimum_cmd_size = 6; 1240 1241 /* 1242 * Load the user's default, if any. 1243 */ 1244 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1245 periph->unit_number); 1246 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1247 1248 /* 1249 * 6, 10, 12 and 16 are the currently permissible values. 1250 */ 1251 if (softc->minimum_cmd_size < 6) 1252 softc->minimum_cmd_size = 6; 1253 else if ((softc->minimum_cmd_size > 6) 1254 && (softc->minimum_cmd_size <= 10)) 1255 softc->minimum_cmd_size = 10; 1256 else if ((softc->minimum_cmd_size > 10) 1257 && (softc->minimum_cmd_size <= 12)) 1258 softc->minimum_cmd_size = 12; 1259 else if (softc->minimum_cmd_size > 12) 1260 softc->minimum_cmd_size = 16; 1261 1262 /* 1263 * Register this media as a disk 1264 */ 1265 1266 /* 1267 * Add async callbacks for bus reset and 1268 * bus device reset calls. I don't bother 1269 * checking if this fails as, in most cases, 1270 * the system will function just fine without 1271 * them and the only alternative would be to 1272 * not attach the device on failure. 1273 */ 1274 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 1275 daasync, periph, periph->path); 1276 1277 /* 1278 * Take an exclusive refcount on the periph while dastart is called 1279 * to finish the probe. The reference will be dropped in dadone at 1280 * the end of probe. 1281 */ 1282 (void)cam_periph_hold(periph, PRIBIO); 1283 1284 /* 1285 * Schedule a periodic event to occasionally send an 1286 * ordered tag to a device. 1287 */ 1288 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0); 1289 callout_reset(&softc->sendordered_c, 1290 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1291 dasendorderedtag, softc); 1292 1293 mtx_unlock(periph->sim->mtx); 1294 softc->disk = disk_alloc(); 1295 softc->disk->d_open = daopen; 1296 softc->disk->d_close = daclose; 1297 softc->disk->d_strategy = dastrategy; 1298 softc->disk->d_dump = dadump; 1299 softc->disk->d_name = "da"; 1300 softc->disk->d_drv1 = periph; 1301 if (cpi.maxio == 0) 1302 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 1303 else if (cpi.maxio > MAXPHYS) 1304 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 1305 else 1306 softc->disk->d_maxsize = cpi.maxio; 1307 softc->disk->d_unit = periph->unit_number; 1308 softc->disk->d_flags = 0; 1309 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) 1310 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1311 strlcpy(softc->disk->d_ident, cgd->serial_num, 1312 MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1)); 1313 softc->disk->d_hba_vendor = cpi.hba_vendor; 1314 softc->disk->d_hba_device = cpi.hba_device; 1315 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 1316 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 1317 disk_create(softc->disk, DISK_VERSION); 1318 mtx_lock(periph->sim->mtx); 1319 1320 xpt_schedule(periph, CAM_PRIORITY_DEV); 1321 1322 return(CAM_REQ_CMP); 1323 } 1324 1325 static void 1326 dastart(struct cam_periph *periph, union ccb *start_ccb) 1327 { 1328 struct da_softc *softc; 1329 1330 softc = (struct da_softc *)periph->softc; 1331 1332 switch (softc->state) { 1333 case DA_STATE_NORMAL: 1334 { 1335 /* Pull a buffer from the queue and get going on it */ 1336 struct bio *bp; 1337 1338 /* 1339 * See if there is a buf with work for us to do.. 1340 */ 1341 bp = bioq_first(&softc->bio_queue); 1342 if (periph->immediate_priority <= periph->pinfo.priority) { 1343 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1344 ("queuing for immediate ccb\n")); 1345 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1346 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1347 periph_links.sle); 1348 periph->immediate_priority = CAM_PRIORITY_NONE; 1349 wakeup(&periph->ccb_list); 1350 } else if (bp == NULL) { 1351 xpt_release_ccb(start_ccb); 1352 } else { 1353 u_int8_t tag_code; 1354 1355 bioq_remove(&softc->bio_queue, bp); 1356 1357 if ((bp->bio_flags & BIO_ORDERED) != 0 1358 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1359 softc->flags &= ~DA_FLAG_NEED_OTAG; 1360 softc->ordered_tag_count++; 1361 tag_code = MSG_ORDERED_Q_TAG; 1362 } else { 1363 tag_code = MSG_SIMPLE_Q_TAG; 1364 } 1365 switch (bp->bio_cmd) { 1366 case BIO_READ: 1367 case BIO_WRITE: 1368 scsi_read_write(&start_ccb->csio, 1369 /*retries*/da_retry_count, 1370 /*cbfcnp*/dadone, 1371 /*tag_action*/tag_code, 1372 /*read_op*/bp->bio_cmd 1373 == BIO_READ, 1374 /*byte2*/0, 1375 softc->minimum_cmd_size, 1376 /*lba*/bp->bio_pblkno, 1377 /*block_count*/bp->bio_bcount / 1378 softc->params.secsize, 1379 /*data_ptr*/ bp->bio_data, 1380 /*dxfer_len*/ bp->bio_bcount, 1381 /*sense_len*/SSD_FULL_SIZE, 1382 da_default_timeout * 1000); 1383 break; 1384 case BIO_FLUSH: 1385 /* 1386 * BIO_FLUSH doesn't currently communicate 1387 * range data, so we synchronize the cache 1388 * over the whole disk. We also force 1389 * ordered tag semantics the flush applies 1390 * to all previously queued I/O. 1391 */ 1392 scsi_synchronize_cache(&start_ccb->csio, 1393 /*retries*/1, 1394 /*cbfcnp*/dadone, 1395 MSG_ORDERED_Q_TAG, 1396 /*begin_lba*/0, 1397 /*lb_count*/0, 1398 SSD_FULL_SIZE, 1399 da_default_timeout*1000); 1400 break; 1401 } 1402 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1403 1404 /* 1405 * Block out any asyncronous callbacks 1406 * while we touch the pending ccb list. 1407 */ 1408 LIST_INSERT_HEAD(&softc->pending_ccbs, 1409 &start_ccb->ccb_h, periph_links.le); 1410 softc->outstanding_cmds++; 1411 1412 /* We expect a unit attention from this device */ 1413 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1414 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1415 softc->flags &= ~DA_FLAG_RETRY_UA; 1416 } 1417 1418 start_ccb->ccb_h.ccb_bp = bp; 1419 bp = bioq_first(&softc->bio_queue); 1420 1421 xpt_action(start_ccb); 1422 } 1423 1424 if (bp != NULL) { 1425 /* Have more work to do, so ensure we stay scheduled */ 1426 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1427 } 1428 break; 1429 } 1430 case DA_STATE_PROBE: 1431 { 1432 struct ccb_scsiio *csio; 1433 struct scsi_read_capacity_data *rcap; 1434 1435 rcap = (struct scsi_read_capacity_data *) 1436 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO); 1437 if (rcap == NULL) { 1438 printf("dastart: Couldn't malloc read_capacity data\n"); 1439 /* da_free_periph??? */ 1440 break; 1441 } 1442 csio = &start_ccb->csio; 1443 scsi_read_capacity(csio, 1444 /*retries*/4, 1445 dadone, 1446 MSG_SIMPLE_Q_TAG, 1447 rcap, 1448 SSD_FULL_SIZE, 1449 /*timeout*/5000); 1450 start_ccb->ccb_h.ccb_bp = NULL; 1451 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1452 xpt_action(start_ccb); 1453 break; 1454 } 1455 case DA_STATE_PROBE2: 1456 { 1457 struct ccb_scsiio *csio; 1458 struct scsi_read_capacity_data_long *rcaplong; 1459 1460 rcaplong = (struct scsi_read_capacity_data_long *) 1461 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); 1462 if (rcaplong == NULL) { 1463 printf("dastart: Couldn't malloc read_capacity data\n"); 1464 /* da_free_periph??? */ 1465 break; 1466 } 1467 csio = &start_ccb->csio; 1468 scsi_read_capacity_16(csio, 1469 /*retries*/ 4, 1470 /*cbfcnp*/ dadone, 1471 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1472 /*lba*/ 0, 1473 /*reladr*/ 0, 1474 /*pmi*/ 0, 1475 rcaplong, 1476 /*sense_len*/ SSD_FULL_SIZE, 1477 /*timeout*/ 60000); 1478 start_ccb->ccb_h.ccb_bp = NULL; 1479 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1480 xpt_action(start_ccb); 1481 break; 1482 } 1483 } 1484 } 1485 1486 static int 1487 cmd6workaround(union ccb *ccb) 1488 { 1489 struct scsi_rw_6 cmd6; 1490 struct scsi_rw_10 *cmd10; 1491 struct da_softc *softc; 1492 u_int8_t *cdb; 1493 int frozen; 1494 1495 cdb = ccb->csio.cdb_io.cdb_bytes; 1496 1497 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1498 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1499 (*cdb != READ_6 && *cdb != WRITE_6)) 1500 return 0; 1501 1502 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1503 "increasing minimum_cmd_size to 10.\n"); 1504 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1505 softc->minimum_cmd_size = 10; 1506 1507 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1508 cmd10 = (struct scsi_rw_10 *)cdb; 1509 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1510 cmd10->byte2 = 0; 1511 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1512 cmd10->reserved = 0; 1513 scsi_ulto2b(cmd6.length, cmd10->length); 1514 cmd10->control = cmd6.control; 1515 ccb->csio.cdb_len = sizeof(*cmd10); 1516 1517 /* Requeue request, unfreezing queue if necessary */ 1518 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1519 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1520 xpt_action(ccb); 1521 if (frozen) { 1522 cam_release_devq(ccb->ccb_h.path, 1523 /*relsim_flags*/0, 1524 /*reduction*/0, 1525 /*timeout*/0, 1526 /*getcount_only*/0); 1527 } 1528 return (ERESTART); 1529 } 1530 1531 static void 1532 dadone(struct cam_periph *periph, union ccb *done_ccb) 1533 { 1534 struct da_softc *softc; 1535 struct ccb_scsiio *csio; 1536 u_int32_t priority; 1537 1538 softc = (struct da_softc *)periph->softc; 1539 priority = done_ccb->ccb_h.pinfo.priority; 1540 csio = &done_ccb->csio; 1541 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1542 case DA_CCB_BUFFER_IO: 1543 { 1544 struct bio *bp; 1545 1546 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1547 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1548 int error; 1549 int sf; 1550 1551 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1552 sf = SF_RETRY_UA; 1553 else 1554 sf = 0; 1555 1556 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1557 if (error == ERESTART) { 1558 /* 1559 * A retry was scheuled, so 1560 * just return. 1561 */ 1562 return; 1563 } 1564 if (error != 0) { 1565 1566 if (error == ENXIO) { 1567 /* 1568 * Catastrophic error. Mark our pack as 1569 * invalid. 1570 */ 1571 /* 1572 * XXX See if this is really a media 1573 * XXX change first? 1574 */ 1575 xpt_print(periph->path, 1576 "Invalidating pack\n"); 1577 softc->flags |= DA_FLAG_PACK_INVALID; 1578 } 1579 1580 /* 1581 * return all queued I/O with EIO, so that 1582 * the client can retry these I/Os in the 1583 * proper order should it attempt to recover. 1584 */ 1585 bioq_flush(&softc->bio_queue, NULL, EIO); 1586 bp->bio_error = error; 1587 bp->bio_resid = bp->bio_bcount; 1588 bp->bio_flags |= BIO_ERROR; 1589 } else { 1590 bp->bio_resid = csio->resid; 1591 bp->bio_error = 0; 1592 if (bp->bio_resid != 0) 1593 bp->bio_flags |= BIO_ERROR; 1594 } 1595 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1596 cam_release_devq(done_ccb->ccb_h.path, 1597 /*relsim_flags*/0, 1598 /*reduction*/0, 1599 /*timeout*/0, 1600 /*getcount_only*/0); 1601 } else { 1602 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1603 panic("REQ_CMP with QFRZN"); 1604 bp->bio_resid = csio->resid; 1605 if (csio->resid > 0) 1606 bp->bio_flags |= BIO_ERROR; 1607 } 1608 1609 /* 1610 * Block out any asyncronous callbacks 1611 * while we touch the pending ccb list. 1612 */ 1613 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1614 softc->outstanding_cmds--; 1615 if (softc->outstanding_cmds == 0) 1616 softc->flags |= DA_FLAG_WENT_IDLE; 1617 1618 biodone(bp); 1619 break; 1620 } 1621 case DA_CCB_PROBE: 1622 case DA_CCB_PROBE2: 1623 { 1624 struct scsi_read_capacity_data *rdcap; 1625 struct scsi_read_capacity_data_long *rcaplong; 1626 char announce_buf[80]; 1627 1628 rdcap = NULL; 1629 rcaplong = NULL; 1630 if (softc->state == DA_STATE_PROBE) 1631 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1632 else 1633 rcaplong = (struct scsi_read_capacity_data_long *) 1634 csio->data_ptr; 1635 1636 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1637 struct disk_params *dp; 1638 uint32_t block_size; 1639 uint64_t maxsector; 1640 1641 if (softc->state == DA_STATE_PROBE) { 1642 block_size = scsi_4btoul(rdcap->length); 1643 maxsector = scsi_4btoul(rdcap->addr); 1644 1645 /* 1646 * According to SBC-2, if the standard 10 1647 * byte READ CAPACITY command returns 2^32, 1648 * we should issue the 16 byte version of 1649 * the command, since the device in question 1650 * has more sectors than can be represented 1651 * with the short version of the command. 1652 */ 1653 if (maxsector == 0xffffffff) { 1654 softc->state = DA_STATE_PROBE2; 1655 free(rdcap, M_SCSIDA); 1656 xpt_release_ccb(done_ccb); 1657 xpt_schedule(periph, priority); 1658 return; 1659 } 1660 } else { 1661 block_size = scsi_4btoul(rcaplong->length); 1662 maxsector = scsi_8btou64(rcaplong->addr); 1663 } 1664 1665 /* 1666 * Because GEOM code just will panic us if we 1667 * give them an 'illegal' value we'll avoid that 1668 * here. 1669 */ 1670 if (block_size == 0 && maxsector == 0) { 1671 snprintf(announce_buf, sizeof(announce_buf), 1672 "0MB (no media?)"); 1673 } else if (block_size >= MAXPHYS || block_size == 0) { 1674 xpt_print(periph->path, 1675 "unsupportable block size %ju\n", 1676 (uintmax_t) block_size); 1677 announce_buf[0] = '\0'; 1678 cam_periph_invalidate(periph); 1679 } else { 1680 dasetgeom(periph, block_size, maxsector); 1681 dp = &softc->params; 1682 snprintf(announce_buf, sizeof(announce_buf), 1683 "%juMB (%ju %u byte sectors: %dH %dS/T " 1684 "%dC)", (uintmax_t) 1685 (((uintmax_t)dp->secsize * 1686 dp->sectors) / (1024*1024)), 1687 (uintmax_t)dp->sectors, 1688 dp->secsize, dp->heads, 1689 dp->secs_per_track, dp->cylinders); 1690 } 1691 } else { 1692 int error; 1693 1694 announce_buf[0] = '\0'; 1695 1696 /* 1697 * Retry any UNIT ATTENTION type errors. They 1698 * are expected at boot. 1699 */ 1700 error = daerror(done_ccb, CAM_RETRY_SELTO, 1701 SF_RETRY_UA|SF_NO_PRINT); 1702 if (error == ERESTART) { 1703 /* 1704 * A retry was scheuled, so 1705 * just return. 1706 */ 1707 return; 1708 } else if (error != 0) { 1709 struct scsi_sense_data *sense; 1710 int asc, ascq; 1711 int sense_key, error_code; 1712 int have_sense; 1713 cam_status status; 1714 struct ccb_getdev cgd; 1715 1716 /* Don't wedge this device's queue */ 1717 status = done_ccb->ccb_h.status; 1718 if ((status & CAM_DEV_QFRZN) != 0) 1719 cam_release_devq(done_ccb->ccb_h.path, 1720 /*relsim_flags*/0, 1721 /*reduction*/0, 1722 /*timeout*/0, 1723 /*getcount_only*/0); 1724 1725 1726 xpt_setup_ccb(&cgd.ccb_h, 1727 done_ccb->ccb_h.path, 1728 CAM_PRIORITY_NORMAL); 1729 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1730 xpt_action((union ccb *)&cgd); 1731 1732 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1733 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1734 || ((status & CAM_AUTOSNS_VALID) == 0)) 1735 have_sense = FALSE; 1736 else 1737 have_sense = TRUE; 1738 1739 if (have_sense) { 1740 sense = &csio->sense_data; 1741 scsi_extract_sense(sense, &error_code, 1742 &sense_key, 1743 &asc, &ascq); 1744 } 1745 /* 1746 * Attach to anything that claims to be a 1747 * direct access or optical disk device, 1748 * as long as it doesn't return a "Logical 1749 * unit not supported" (0x25) error. 1750 */ 1751 if ((have_sense) && (asc != 0x25) 1752 && (error_code == SSD_CURRENT_ERROR)) { 1753 const char *sense_key_desc; 1754 const char *asc_desc; 1755 1756 scsi_sense_desc(sense_key, asc, ascq, 1757 &cgd.inq_data, 1758 &sense_key_desc, 1759 &asc_desc); 1760 snprintf(announce_buf, 1761 sizeof(announce_buf), 1762 "Attempt to query device " 1763 "size failed: %s, %s", 1764 sense_key_desc, 1765 asc_desc); 1766 } else { 1767 if (have_sense) 1768 scsi_sense_print( 1769 &done_ccb->csio); 1770 else { 1771 xpt_print(periph->path, 1772 "got CAM status %#x\n", 1773 done_ccb->ccb_h.status); 1774 } 1775 1776 xpt_print(periph->path, "fatal error, " 1777 "failed to attach to device\n"); 1778 1779 /* 1780 * Free up resources. 1781 */ 1782 cam_periph_invalidate(periph); 1783 } 1784 } 1785 } 1786 free(csio->data_ptr, M_SCSIDA); 1787 if (announce_buf[0] != '\0') { 1788 xpt_announce_periph(periph, announce_buf); 1789 /* 1790 * Create our sysctl variables, now that we know 1791 * we have successfully attached. 1792 */ 1793 (void) cam_periph_acquire(periph); /* increase the refcount */ 1794 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1795 } 1796 softc->state = DA_STATE_NORMAL; 1797 /* 1798 * Since our peripheral may be invalidated by an error 1799 * above or an external event, we must release our CCB 1800 * before releasing the probe lock on the peripheral. 1801 * The peripheral will only go away once the last lock 1802 * is removed, and we need it around for the CCB release 1803 * operation. 1804 */ 1805 xpt_release_ccb(done_ccb); 1806 cam_periph_unhold(periph); 1807 return; 1808 } 1809 case DA_CCB_WAITING: 1810 { 1811 /* Caller will release the CCB */ 1812 wakeup(&done_ccb->ccb_h.cbfcnp); 1813 return; 1814 } 1815 case DA_CCB_DUMP: 1816 /* No-op. We're polling */ 1817 return; 1818 default: 1819 break; 1820 } 1821 xpt_release_ccb(done_ccb); 1822 } 1823 1824 static int 1825 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1826 { 1827 struct da_softc *softc; 1828 struct cam_periph *periph; 1829 int error; 1830 1831 periph = xpt_path_periph(ccb->ccb_h.path); 1832 softc = (struct da_softc *)periph->softc; 1833 1834 /* 1835 * Automatically detect devices that do not support 1836 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1837 */ 1838 error = 0; 1839 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1840 error = cmd6workaround(ccb); 1841 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1842 CAM_SCSI_STATUS_ERROR) 1843 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1844 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1845 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1846 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1847 int sense_key, error_code, asc, ascq; 1848 1849 scsi_extract_sense(&ccb->csio.sense_data, 1850 &error_code, &sense_key, &asc, &ascq); 1851 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1852 error = cmd6workaround(ccb); 1853 } 1854 if (error == ERESTART) 1855 return (ERESTART); 1856 1857 /* 1858 * XXX 1859 * Until we have a better way of doing pack validation, 1860 * don't treat UAs as errors. 1861 */ 1862 sense_flags |= SF_RETRY_UA; 1863 return(cam_periph_error(ccb, cam_flags, sense_flags, 1864 &softc->saved_ccb)); 1865 } 1866 1867 static void 1868 daprevent(struct cam_periph *periph, int action) 1869 { 1870 struct da_softc *softc; 1871 union ccb *ccb; 1872 int error; 1873 1874 softc = (struct da_softc *)periph->softc; 1875 1876 if (((action == PR_ALLOW) 1877 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1878 || ((action == PR_PREVENT) 1879 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1880 return; 1881 } 1882 1883 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1884 1885 scsi_prevent(&ccb->csio, 1886 /*retries*/1, 1887 /*cbcfp*/dadone, 1888 MSG_SIMPLE_Q_TAG, 1889 action, 1890 SSD_FULL_SIZE, 1891 5000); 1892 1893 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1894 SF_RETRY_UA, softc->disk->d_devstat); 1895 1896 if (error == 0) { 1897 if (action == PR_ALLOW) 1898 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1899 else 1900 softc->flags |= DA_FLAG_PACK_LOCKED; 1901 } 1902 1903 xpt_release_ccb(ccb); 1904 } 1905 1906 static int 1907 dagetcapacity(struct cam_periph *periph) 1908 { 1909 struct da_softc *softc; 1910 union ccb *ccb; 1911 struct scsi_read_capacity_data *rcap; 1912 struct scsi_read_capacity_data_long *rcaplong; 1913 uint32_t block_len; 1914 uint64_t maxsector; 1915 int error; 1916 u_int32_t sense_flags; 1917 1918 softc = (struct da_softc *)periph->softc; 1919 block_len = 0; 1920 maxsector = 0; 1921 error = 0; 1922 sense_flags = SF_RETRY_UA; 1923 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1924 sense_flags |= SF_NO_PRINT; 1925 1926 /* Do a read capacity */ 1927 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1928 M_SCSIDA, 1929 M_NOWAIT); 1930 if (rcap == NULL) 1931 return (ENOMEM); 1932 1933 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1934 scsi_read_capacity(&ccb->csio, 1935 /*retries*/4, 1936 /*cbfncp*/dadone, 1937 MSG_SIMPLE_Q_TAG, 1938 rcap, 1939 SSD_FULL_SIZE, 1940 /*timeout*/60000); 1941 ccb->ccb_h.ccb_bp = NULL; 1942 1943 error = cam_periph_runccb(ccb, daerror, 1944 /*cam_flags*/CAM_RETRY_SELTO, 1945 sense_flags, 1946 softc->disk->d_devstat); 1947 1948 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1949 cam_release_devq(ccb->ccb_h.path, 1950 /*relsim_flags*/0, 1951 /*reduction*/0, 1952 /*timeout*/0, 1953 /*getcount_only*/0); 1954 1955 if (error == 0) { 1956 block_len = scsi_4btoul(rcap->length); 1957 maxsector = scsi_4btoul(rcap->addr); 1958 1959 if (maxsector != 0xffffffff) 1960 goto done; 1961 } else 1962 goto done; 1963 1964 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1965 1966 scsi_read_capacity_16(&ccb->csio, 1967 /*retries*/ 4, 1968 /*cbfcnp*/ dadone, 1969 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1970 /*lba*/ 0, 1971 /*reladr*/ 0, 1972 /*pmi*/ 0, 1973 rcaplong, 1974 /*sense_len*/ SSD_FULL_SIZE, 1975 /*timeout*/ 60000); 1976 ccb->ccb_h.ccb_bp = NULL; 1977 1978 error = cam_periph_runccb(ccb, daerror, 1979 /*cam_flags*/CAM_RETRY_SELTO, 1980 sense_flags, 1981 softc->disk->d_devstat); 1982 1983 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1984 cam_release_devq(ccb->ccb_h.path, 1985 /*relsim_flags*/0, 1986 /*reduction*/0, 1987 /*timeout*/0, 1988 /*getcount_only*/0); 1989 1990 if (error == 0) { 1991 block_len = scsi_4btoul(rcaplong->length); 1992 maxsector = scsi_8btou64(rcaplong->addr); 1993 } 1994 1995 done: 1996 1997 if (error == 0) { 1998 if (block_len >= MAXPHYS || block_len == 0) { 1999 xpt_print(periph->path, 2000 "unsupportable block size %ju\n", 2001 (uintmax_t) block_len); 2002 error = EINVAL; 2003 } else 2004 dasetgeom(periph, block_len, maxsector); 2005 } 2006 2007 xpt_release_ccb(ccb); 2008 2009 free(rcap, M_SCSIDA); 2010 2011 return (error); 2012 } 2013 2014 static void 2015 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2016 { 2017 struct ccb_calc_geometry ccg; 2018 struct da_softc *softc; 2019 struct disk_params *dp; 2020 2021 softc = (struct da_softc *)periph->softc; 2022 2023 dp = &softc->params; 2024 dp->secsize = block_len; 2025 dp->sectors = maxsector + 1; 2026 /* 2027 * Have the controller provide us with a geometry 2028 * for this disk. The only time the geometry 2029 * matters is when we boot and the controller 2030 * is the only one knowledgeable enough to come 2031 * up with something that will make this a bootable 2032 * device. 2033 */ 2034 xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2035 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2036 ccg.block_size = dp->secsize; 2037 ccg.volume_size = dp->sectors; 2038 ccg.heads = 0; 2039 ccg.secs_per_track = 0; 2040 ccg.cylinders = 0; 2041 xpt_action((union ccb*)&ccg); 2042 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2043 /* 2044 * We don't know what went wrong here- but just pick 2045 * a geometry so we don't have nasty things like divide 2046 * by zero. 2047 */ 2048 dp->heads = 255; 2049 dp->secs_per_track = 255; 2050 dp->cylinders = dp->sectors / (255 * 255); 2051 if (dp->cylinders == 0) { 2052 dp->cylinders = 1; 2053 } 2054 } else { 2055 dp->heads = ccg.heads; 2056 dp->secs_per_track = ccg.secs_per_track; 2057 dp->cylinders = ccg.cylinders; 2058 } 2059 } 2060 2061 static void 2062 dasendorderedtag(void *arg) 2063 { 2064 struct da_softc *softc = arg; 2065 2066 if (da_send_ordered) { 2067 if ((softc->ordered_tag_count == 0) 2068 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2069 softc->flags |= DA_FLAG_NEED_OTAG; 2070 } 2071 if (softc->outstanding_cmds > 0) 2072 softc->flags &= ~DA_FLAG_WENT_IDLE; 2073 2074 softc->ordered_tag_count = 0; 2075 } 2076 /* Queue us up again */ 2077 callout_reset(&softc->sendordered_c, 2078 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2079 dasendorderedtag, softc); 2080 } 2081 2082 /* 2083 * Step through all DA peripheral drivers, and if the device is still open, 2084 * sync the disk cache to physical media. 2085 */ 2086 static void 2087 dashutdown(void * arg, int howto) 2088 { 2089 struct cam_periph *periph; 2090 struct da_softc *softc; 2091 2092 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2093 union ccb ccb; 2094 2095 cam_periph_lock(periph); 2096 softc = (struct da_softc *)periph->softc; 2097 2098 /* 2099 * We only sync the cache if the drive is still open, and 2100 * if the drive is capable of it.. 2101 */ 2102 if (((softc->flags & DA_FLAG_OPEN) == 0) 2103 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2104 cam_periph_unlock(periph); 2105 continue; 2106 } 2107 2108 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2109 2110 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2111 scsi_synchronize_cache(&ccb.csio, 2112 /*retries*/1, 2113 /*cbfcnp*/dadone, 2114 MSG_SIMPLE_Q_TAG, 2115 /*begin_lba*/0, /* whole disk */ 2116 /*lb_count*/0, 2117 SSD_FULL_SIZE, 2118 60 * 60 * 1000); 2119 2120 xpt_polled_action(&ccb); 2121 2122 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2123 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2124 CAM_SCSI_STATUS_ERROR) 2125 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2126 int error_code, sense_key, asc, ascq; 2127 2128 scsi_extract_sense(&ccb.csio.sense_data, 2129 &error_code, &sense_key, 2130 &asc, &ascq); 2131 2132 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2133 scsi_sense_print(&ccb.csio); 2134 } else { 2135 xpt_print(periph->path, "Synchronize " 2136 "cache failed, status == 0x%x, scsi status " 2137 "== 0x%x\n", ccb.ccb_h.status, 2138 ccb.csio.scsi_status); 2139 } 2140 } 2141 2142 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2143 cam_release_devq(ccb.ccb_h.path, 2144 /*relsim_flags*/0, 2145 /*reduction*/0, 2146 /*timeout*/0, 2147 /*getcount_only*/0); 2148 cam_periph_unlock(periph); 2149 } 2150 } 2151 2152 #else /* !_KERNEL */ 2153 2154 /* 2155 * XXX This is only left out of the kernel build to silence warnings. If, 2156 * for some reason this function is used in the kernel, the ifdefs should 2157 * be moved so it is included both in the kernel and userland. 2158 */ 2159 void 2160 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2161 void (*cbfcnp)(struct cam_periph *, union ccb *), 2162 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2163 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2164 u_int32_t timeout) 2165 { 2166 struct scsi_format_unit *scsi_cmd; 2167 2168 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2169 scsi_cmd->opcode = FORMAT_UNIT; 2170 scsi_cmd->byte2 = byte2; 2171 scsi_ulto2b(ileave, scsi_cmd->interleave); 2172 2173 cam_fill_csio(csio, 2174 retries, 2175 cbfcnp, 2176 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2177 tag_action, 2178 data_ptr, 2179 dxfer_len, 2180 sense_len, 2181 sizeof(*scsi_cmd), 2182 timeout); 2183 } 2184 2185 #endif /* _KERNEL */ 2186