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.h> 48 #include <geom/geom_disk.h> 49 #endif /* _KERNEL */ 50 51 #ifndef _KERNEL 52 #include <stdio.h> 53 #include <string.h> 54 #endif /* _KERNEL */ 55 56 #include <cam/cam.h> 57 #include <cam/cam_ccb.h> 58 #include <cam/cam_periph.h> 59 #include <cam/cam_xpt_periph.h> 60 #include <cam/cam_sim.h> 61 62 #include <cam/scsi/scsi_message.h> 63 64 #ifndef _KERNEL 65 #include <cam/scsi/scsi_da.h> 66 #endif /* !_KERNEL */ 67 68 #ifdef _KERNEL 69 typedef enum { 70 DA_STATE_PROBE, 71 DA_STATE_PROBE2, 72 DA_STATE_NORMAL 73 } da_state; 74 75 typedef enum { 76 DA_FLAG_PACK_INVALID = 0x001, 77 DA_FLAG_NEW_PACK = 0x002, 78 DA_FLAG_PACK_LOCKED = 0x004, 79 DA_FLAG_PACK_REMOVABLE = 0x008, 80 DA_FLAG_TAGGED_QUEUING = 0x010, 81 DA_FLAG_NEED_OTAG = 0x020, 82 DA_FLAG_WENT_IDLE = 0x040, 83 DA_FLAG_RETRY_UA = 0x080, 84 DA_FLAG_OPEN = 0x100, 85 DA_FLAG_SCTX_INIT = 0x200 86 } da_flags; 87 88 typedef enum { 89 DA_Q_NONE = 0x00, 90 DA_Q_NO_SYNC_CACHE = 0x01, 91 DA_Q_NO_6_BYTE = 0x02, 92 DA_Q_NO_PREVENT = 0x04 93 } da_quirks; 94 95 typedef enum { 96 DA_CCB_PROBE = 0x01, 97 DA_CCB_PROBE2 = 0x02, 98 DA_CCB_BUFFER_IO = 0x03, 99 DA_CCB_WAITING = 0x04, 100 DA_CCB_DUMP = 0x05, 101 DA_CCB_TYPE_MASK = 0x0F, 102 DA_CCB_RETRY_UA = 0x10 103 } da_ccb_state; 104 105 /* Offsets into our private area for storing information */ 106 #define ccb_state ppriv_field0 107 #define ccb_bp ppriv_ptr1 108 109 struct disk_params { 110 u_int8_t heads; 111 u_int32_t cylinders; 112 u_int8_t secs_per_track; 113 u_int32_t secsize; /* Number of bytes/sector */ 114 u_int64_t sectors; /* total number sectors */ 115 }; 116 117 struct da_softc { 118 struct bio_queue_head bio_queue; 119 SLIST_ENTRY(da_softc) links; 120 LIST_HEAD(, ccb_hdr) pending_ccbs; 121 da_state state; 122 da_flags flags; 123 da_quirks quirks; 124 int minimum_cmd_size; 125 int ordered_tag_count; 126 int outstanding_cmds; 127 struct disk_params params; 128 struct disk *disk; 129 union ccb saved_ccb; 130 struct task sysctl_task; 131 struct sysctl_ctx_list sysctl_ctx; 132 struct sysctl_oid *sysctl_tree; 133 struct callout sendordered_c; 134 uint64_t wwpn; 135 }; 136 137 struct da_quirk_entry { 138 struct scsi_inquiry_pattern inq_pat; 139 da_quirks quirks; 140 }; 141 142 static const char quantum[] = "QUANTUM"; 143 static const char microp[] = "MICROP"; 144 145 static struct da_quirk_entry da_quirk_table[] = 146 { 147 /* SPI, FC devices */ 148 { 149 /* 150 * Fujitsu M2513A MO drives. 151 * Tested devices: M2513A2 firmware versions 1200 & 1300. 152 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 153 * Reported by: W.Scholten <whs@xs4all.nl> 154 */ 155 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 156 /*quirks*/ DA_Q_NO_SYNC_CACHE 157 }, 158 { 159 /* See above. */ 160 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 161 /*quirks*/ DA_Q_NO_SYNC_CACHE 162 }, 163 { 164 /* 165 * This particular Fujitsu drive doesn't like the 166 * synchronize cache command. 167 * Reported by: Tom Jackson <toj@gorilla.net> 168 */ 169 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 170 /*quirks*/ DA_Q_NO_SYNC_CACHE 171 }, 172 { 173 /* 174 * This drive doesn't like the synchronize cache command 175 * either. Reported by: Matthew Jacob <mjacob@feral.com> 176 * in NetBSD PR kern/6027, August 24, 1998. 177 */ 178 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 179 /*quirks*/ DA_Q_NO_SYNC_CACHE 180 }, 181 { 182 /* 183 * This drive doesn't like the synchronize cache command 184 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 185 * (PR 8882). 186 */ 187 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 188 /*quirks*/ DA_Q_NO_SYNC_CACHE 189 }, 190 { 191 /* 192 * Doesn't like the synchronize cache command. 193 * Reported by: Blaz Zupan <blaz@gold.amis.net> 194 */ 195 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 196 /*quirks*/ DA_Q_NO_SYNC_CACHE 197 }, 198 { 199 /* 200 * Doesn't like the synchronize cache command. 201 * Reported by: Blaz Zupan <blaz@gold.amis.net> 202 */ 203 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 204 /*quirks*/ DA_Q_NO_SYNC_CACHE 205 }, 206 { 207 /* 208 * Doesn't like the synchronize cache command. 209 */ 210 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 211 /*quirks*/ DA_Q_NO_SYNC_CACHE 212 }, 213 { 214 /* 215 * Doesn't like the synchronize cache command. 216 * Reported by: walter@pelissero.de 217 */ 218 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 219 /*quirks*/ DA_Q_NO_SYNC_CACHE 220 }, 221 { 222 /* 223 * Doesn't work correctly with 6 byte reads/writes. 224 * Returns illegal request, and points to byte 9 of the 225 * 6-byte CDB. 226 * Reported by: Adam McDougall <bsdx@spawnet.com> 227 */ 228 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 229 /*quirks*/ DA_Q_NO_6_BYTE 230 }, 231 { 232 /* See above. */ 233 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 234 /*quirks*/ DA_Q_NO_6_BYTE 235 }, 236 { 237 /* 238 * Doesn't like the synchronize cache command. 239 * Reported by: walter@pelissero.de 240 */ 241 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 242 /*quirks*/ DA_Q_NO_SYNC_CACHE 243 }, 244 { 245 /* 246 * The CISS RAID controllers do not support SYNC_CACHE 247 */ 248 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 249 /*quirks*/ DA_Q_NO_SYNC_CACHE 250 }, 251 /* USB mass storage devices supported by umass(4) */ 252 { 253 /* 254 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 255 * PR: kern/51675 256 */ 257 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 258 /*quirks*/ DA_Q_NO_SYNC_CACHE 259 }, 260 { 261 /* 262 * Power Quotient Int. (PQI) USB flash key 263 * PR: kern/53067 264 */ 265 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 266 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 267 }, 268 { 269 /* 270 * Creative Nomad MUVO mp3 player (USB) 271 * PR: kern/53094 272 */ 273 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 274 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 275 }, 276 { 277 /* 278 * Jungsoft NEXDISK USB flash key 279 * PR: kern/54737 280 */ 281 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 282 /*quirks*/ DA_Q_NO_SYNC_CACHE 283 }, 284 { 285 /* 286 * FreeDik USB Mini Data Drive 287 * PR: kern/54786 288 */ 289 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 290 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 291 }, 292 { 293 /* 294 * Sigmatel USB Flash MP3 Player 295 * PR: kern/57046 296 */ 297 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 298 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 299 }, 300 { 301 /* 302 * Neuros USB Digital Audio Computer 303 * PR: kern/63645 304 */ 305 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 306 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 307 }, 308 { 309 /* 310 * SEAGRAND NP-900 MP3 Player 311 * PR: kern/64563 312 */ 313 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 314 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 315 }, 316 { 317 /* 318 * iRiver iFP MP3 player (with UMS Firmware) 319 * PR: kern/54881, i386/63941, kern/66124 320 */ 321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 322 /*quirks*/ DA_Q_NO_SYNC_CACHE 323 }, 324 { 325 /* 326 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 327 * PR: kern/70158 328 */ 329 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 330 /*quirks*/ DA_Q_NO_SYNC_CACHE 331 }, 332 { 333 /* 334 * ZICPlay USB MP3 Player with FM 335 * PR: kern/75057 336 */ 337 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 338 /*quirks*/ DA_Q_NO_SYNC_CACHE 339 }, 340 { 341 /* 342 * TEAC USB floppy mechanisms 343 */ 344 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 345 /*quirks*/ DA_Q_NO_SYNC_CACHE 346 }, 347 { 348 /* 349 * Kingston DataTraveler II+ USB Pen-Drive. 350 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 351 */ 352 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", 353 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 354 }, 355 { 356 /* 357 * Motorola E398 Mobile Phone (TransFlash memory card). 358 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 359 * PR: usb/89889 360 */ 361 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 362 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 363 }, 364 { 365 /* 366 * Qware BeatZkey! Pro 367 * PR: usb/79164 368 */ 369 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 370 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 371 }, 372 { 373 /* 374 * Time DPA20B 1GB MP3 Player 375 * PR: usb/81846 376 */ 377 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 378 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 379 }, 380 { 381 /* 382 * Samsung USB key 128Mb 383 * PR: usb/90081 384 */ 385 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 386 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 387 }, 388 { 389 /* 390 * Kingston DataTraveler 2.0 USB Flash memory. 391 * PR: usb/89196 392 */ 393 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 394 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 395 }, 396 { 397 /* 398 * Creative MUVO Slim mp3 player (USB) 399 * PR: usb/86131 400 */ 401 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 402 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 403 }, 404 { 405 /* 406 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 407 * PR: usb/80487 408 */ 409 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 410 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 411 }, 412 { 413 /* 414 * SanDisk Micro Cruzer 128MB 415 * PR: usb/75970 416 */ 417 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 418 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 419 }, 420 { 421 /* 422 * TOSHIBA TransMemory USB sticks 423 * PR: kern/94660 424 */ 425 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 426 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 427 }, 428 { 429 /* 430 * PNY USB Flash keys 431 * PR: usb/75578, usb/72344, usb/65436 432 */ 433 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 434 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 435 }, 436 { 437 /* 438 * Genesys 6-in-1 Card Reader 439 * PR: usb/94647 440 */ 441 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 442 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 443 }, 444 { 445 /* 446 * Rekam Digital CAMERA 447 * PR: usb/98713 448 */ 449 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 450 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 451 }, 452 { 453 /* 454 * iRiver H10 MP3 player 455 * PR: usb/102547 456 */ 457 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 458 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 459 }, 460 { 461 /* 462 * iRiver U10 MP3 player 463 * PR: usb/92306 464 */ 465 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", 466 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 467 }, 468 { 469 /* 470 * X-Micro Flash Disk 471 * PR: usb/96901 472 */ 473 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", 474 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 475 }, 476 { 477 /* 478 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 479 * PR: usb/96546 480 */ 481 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 482 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 483 }, 484 { 485 /* 486 * Denver MP3 player 487 * PR: usb/107101 488 */ 489 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 490 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 491 }, 492 { 493 /* 494 * Philips USB Key Audio KEY013 495 * PR: usb/68412 496 */ 497 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, 498 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 499 }, 500 { 501 /* 502 * JNC MP3 Player 503 * PR: usb/94439 504 */ 505 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", 506 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 507 }, 508 { 509 /* 510 * SAMSUNG MP0402H 511 * PR: usb/108427 512 */ 513 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, 514 /*quirks*/ DA_Q_NO_SYNC_CACHE 515 }, 516 { 517 /* 518 * I/O Magic USB flash - Giga Bank 519 * PR: usb/108810 520 */ 521 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, 522 /*quirks*/ DA_Q_NO_SYNC_CACHE 523 }, 524 { 525 /* 526 * JoyFly 128mb USB Flash Drive 527 * PR: 96133 528 */ 529 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", 530 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 531 }, 532 { 533 /* 534 * ChipsBnk usb stick 535 * PR: 103702 536 */ 537 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", 538 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 539 }, 540 { 541 /* 542 * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A 543 * PR: 129858 544 */ 545 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*", 546 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 547 }, 548 { 549 /* 550 * Samsung YP-U3 mp3-player 551 * PR: 125398 552 */ 553 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3", 554 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 555 }, 556 { 557 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*", 558 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 559 }, 560 { 561 /* 562 * Sony Cyber-Shot DSC cameras 563 * PR: usb/137035 564 */ 565 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 566 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 567 } 568 }; 569 570 static disk_strategy_t dastrategy; 571 static dumper_t dadump; 572 static periph_init_t dainit; 573 static void daasync(void *callback_arg, u_int32_t code, 574 struct cam_path *path, void *arg); 575 static void dasysctlinit(void *context, int pending); 576 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 577 static periph_ctor_t daregister; 578 static periph_dtor_t dacleanup; 579 static periph_start_t dastart; 580 static periph_oninv_t daoninvalidate; 581 static void dadone(struct cam_periph *periph, 582 union ccb *done_ccb); 583 static int daerror(union ccb *ccb, u_int32_t cam_flags, 584 u_int32_t sense_flags); 585 static void daprevent(struct cam_periph *periph, int action); 586 static int dagetcapacity(struct cam_periph *periph); 587 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 588 uint64_t maxsector); 589 static timeout_t dasendorderedtag; 590 static void dashutdown(void *arg, int howto); 591 592 #ifndef DA_DEFAULT_TIMEOUT 593 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 594 #endif 595 596 #ifndef DA_DEFAULT_RETRY 597 #define DA_DEFAULT_RETRY 4 598 #endif 599 600 #ifndef DA_DEFAULT_SEND_ORDERED 601 #define DA_DEFAULT_SEND_ORDERED 1 602 #endif 603 604 605 static int da_retry_count = DA_DEFAULT_RETRY; 606 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 607 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 608 609 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 610 "CAM Direct Access Disk driver"); 611 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 612 &da_retry_count, 0, "Normal I/O retry count"); 613 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 614 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 615 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 616 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 617 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 618 &da_send_ordered, 0, "Send Ordered Tags"); 619 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 620 621 /* 622 * DA_ORDEREDTAG_INTERVAL determines how often, relative 623 * to the default timeout, we check to see whether an ordered 624 * tagged transaction is appropriate to prevent simple tag 625 * starvation. Since we'd like to ensure that there is at least 626 * 1/2 of the timeout length left for a starved transaction to 627 * complete after we've sent an ordered tag, we must poll at least 628 * four times in every timeout period. This takes care of the worst 629 * case where a starved transaction starts during an interval that 630 * meets the requirement "don't send an ordered tag" test so it takes 631 * us two intervals to determine that a tag must be sent. 632 */ 633 #ifndef DA_ORDEREDTAG_INTERVAL 634 #define DA_ORDEREDTAG_INTERVAL 4 635 #endif 636 637 static struct periph_driver dadriver = 638 { 639 dainit, "da", 640 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 641 }; 642 643 PERIPHDRIVER_DECLARE(da, dadriver); 644 645 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); 646 647 static int 648 daopen(struct disk *dp) 649 { 650 struct cam_periph *periph; 651 struct da_softc *softc; 652 int unit; 653 int error; 654 655 periph = (struct cam_periph *)dp->d_drv1; 656 if (periph == NULL) { 657 return (ENXIO); 658 } 659 660 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 661 return(ENXIO); 662 } 663 664 cam_periph_lock(periph); 665 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 666 cam_periph_unlock(periph); 667 cam_periph_release(periph); 668 return (error); 669 } 670 671 unit = periph->unit_number; 672 softc = (struct da_softc *)periph->softc; 673 softc->flags |= DA_FLAG_OPEN; 674 675 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 676 ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 677 unit)); 678 679 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 680 /* Invalidate our pack information. */ 681 softc->flags &= ~DA_FLAG_PACK_INVALID; 682 } 683 684 error = dagetcapacity(periph); 685 686 if (error == 0) { 687 688 softc->disk->d_sectorsize = softc->params.secsize; 689 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors; 690 /* XXX: these are not actually "firmware" values, so they may be wrong */ 691 softc->disk->d_fwsectors = softc->params.secs_per_track; 692 softc->disk->d_fwheads = softc->params.heads; 693 softc->disk->d_devstat->block_size = softc->params.secsize; 694 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE; 695 696 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 697 (softc->quirks & DA_Q_NO_PREVENT) == 0) 698 daprevent(periph, PR_PREVENT); 699 } else 700 softc->flags &= ~DA_FLAG_OPEN; 701 702 cam_periph_unhold(periph); 703 cam_periph_unlock(periph); 704 705 if (error != 0) { 706 cam_periph_release(periph); 707 } 708 return (error); 709 } 710 711 static int 712 daclose(struct disk *dp) 713 { 714 struct cam_periph *periph; 715 struct da_softc *softc; 716 int error; 717 718 periph = (struct cam_periph *)dp->d_drv1; 719 if (periph == NULL) 720 return (ENXIO); 721 722 cam_periph_lock(periph); 723 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 724 cam_periph_unlock(periph); 725 cam_periph_release(periph); 726 return (error); 727 } 728 729 softc = (struct da_softc *)periph->softc; 730 731 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 732 && (softc->flags & DA_FLAG_PACK_INVALID) == 0) { 733 union ccb *ccb; 734 735 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 736 737 scsi_synchronize_cache(&ccb->csio, 738 /*retries*/1, 739 /*cbfcnp*/dadone, 740 MSG_SIMPLE_Q_TAG, 741 /*begin_lba*/0,/* Cover the whole disk */ 742 /*lb_count*/0, 743 SSD_FULL_SIZE, 744 5 * 60 * 1000); 745 746 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 747 /*sense_flags*/SF_RETRY_UA, 748 softc->disk->d_devstat); 749 750 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 751 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 752 CAM_SCSI_STATUS_ERROR) { 753 int asc, ascq; 754 int sense_key, error_code; 755 756 scsi_extract_sense_len(&ccb->csio.sense_data, 757 ccb->csio.sense_len - ccb->csio.sense_resid, 758 &error_code, &sense_key, &asc, &ascq, 759 /*show_errors*/ 1); 760 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 761 scsi_sense_print(&ccb->csio); 762 } else { 763 xpt_print(periph->path, "Synchronize cache " 764 "failed, status == 0x%x, scsi status == " 765 "0x%x\n", ccb->csio.ccb_h.status, 766 ccb->csio.scsi_status); 767 } 768 } 769 770 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 771 cam_release_devq(ccb->ccb_h.path, 772 /*relsim_flags*/0, 773 /*reduction*/0, 774 /*timeout*/0, 775 /*getcount_only*/0); 776 777 xpt_release_ccb(ccb); 778 779 } 780 781 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 782 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 783 daprevent(periph, PR_ALLOW); 784 /* 785 * If we've got removeable media, mark the blocksize as 786 * unavailable, since it could change when new media is 787 * inserted. 788 */ 789 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE; 790 } 791 792 softc->flags &= ~DA_FLAG_OPEN; 793 cam_periph_unhold(periph); 794 cam_periph_unlock(periph); 795 cam_periph_release(periph); 796 return (0); 797 } 798 799 /* 800 * Actually translate the requested transfer into one the physical driver 801 * can understand. The transfer is described by a buf and will include 802 * only one physical transfer. 803 */ 804 static void 805 dastrategy(struct bio *bp) 806 { 807 struct cam_periph *periph; 808 struct da_softc *softc; 809 810 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 811 if (periph == NULL) { 812 biofinish(bp, NULL, ENXIO); 813 return; 814 } 815 softc = (struct da_softc *)periph->softc; 816 817 cam_periph_lock(periph); 818 819 /* 820 * If the device has been made invalid, error out 821 */ 822 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 823 cam_periph_unlock(periph); 824 biofinish(bp, NULL, ENXIO); 825 return; 826 } 827 828 /* 829 * Place it in the queue of disk activities for this disk 830 */ 831 bioq_disksort(&softc->bio_queue, bp); 832 833 /* 834 * Schedule ourselves for performing the work. 835 */ 836 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 837 cam_periph_unlock(periph); 838 839 return; 840 } 841 842 static int 843 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 844 { 845 struct cam_periph *periph; 846 struct da_softc *softc; 847 u_int secsize; 848 struct ccb_scsiio csio; 849 struct disk *dp; 850 851 dp = arg; 852 periph = dp->d_drv1; 853 if (periph == NULL) 854 return (ENXIO); 855 softc = (struct da_softc *)periph->softc; 856 cam_periph_lock(periph); 857 secsize = softc->params.secsize; 858 859 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 860 cam_periph_unlock(periph); 861 return (ENXIO); 862 } 863 864 if (length > 0) { 865 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 866 csio.ccb_h.ccb_state = DA_CCB_DUMP; 867 scsi_read_write(&csio, 868 /*retries*/1, 869 dadone, 870 MSG_ORDERED_Q_TAG, 871 /*read*/FALSE, 872 /*byte2*/0, 873 /*minimum_cmd_size*/ softc->minimum_cmd_size, 874 offset / secsize, 875 length / secsize, 876 /*data_ptr*/(u_int8_t *) virtual, 877 /*dxfer_len*/length, 878 /*sense_len*/SSD_FULL_SIZE, 879 DA_DEFAULT_TIMEOUT * 1000); 880 xpt_polled_action((union ccb *)&csio); 881 882 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 883 printf("Aborting dump due to I/O error.\n"); 884 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 885 CAM_SCSI_STATUS_ERROR) 886 scsi_sense_print(&csio); 887 else 888 printf("status == 0x%x, scsi status == 0x%x\n", 889 csio.ccb_h.status, csio.scsi_status); 890 return(EIO); 891 } 892 cam_periph_unlock(periph); 893 return(0); 894 } 895 896 /* 897 * Sync the disk cache contents to the physical media. 898 */ 899 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 900 901 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 902 csio.ccb_h.ccb_state = DA_CCB_DUMP; 903 scsi_synchronize_cache(&csio, 904 /*retries*/1, 905 /*cbfcnp*/dadone, 906 MSG_SIMPLE_Q_TAG, 907 /*begin_lba*/0,/* Cover the whole disk */ 908 /*lb_count*/0, 909 SSD_FULL_SIZE, 910 5 * 60 * 1000); 911 xpt_polled_action((union ccb *)&csio); 912 913 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 914 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 915 CAM_SCSI_STATUS_ERROR) { 916 int asc, ascq; 917 int sense_key, error_code; 918 919 scsi_extract_sense_len(&csio.sense_data, 920 csio.sense_len - csio.sense_resid, 921 &error_code, &sense_key, &asc, &ascq, 922 /*show_errors*/ 1); 923 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 924 scsi_sense_print(&csio); 925 } else { 926 xpt_print(periph->path, "Synchronize cache " 927 "failed, status == 0x%x, scsi status == " 928 "0x%x\n", csio.ccb_h.status, 929 csio.scsi_status); 930 } 931 } 932 } 933 cam_periph_unlock(periph); 934 return (0); 935 } 936 937 static int 938 dagetattr(struct bio *bp) 939 { 940 int ret = -1; 941 struct cam_periph *periph; 942 943 if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL) 944 return ENXIO; 945 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 946 if (periph->path == NULL) 947 return ENXIO; 948 949 ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute, 950 periph->path); 951 if (ret == 0) 952 bp->bio_completed = bp->bio_length; 953 return ret; 954 } 955 956 static void 957 dainit(void) 958 { 959 cam_status status; 960 961 /* 962 * Install a global async callback. This callback will 963 * receive async callbacks like "new device found". 964 */ 965 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 966 967 if (status != CAM_REQ_CMP) { 968 printf("da: Failed to attach master async callback " 969 "due to status 0x%x!\n", status); 970 } else if (da_send_ordered) { 971 972 /* Register our shutdown event handler */ 973 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 974 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 975 printf("dainit: shutdown event registration failed!\n"); 976 } 977 } 978 979 static void 980 daoninvalidate(struct cam_periph *periph) 981 { 982 struct da_softc *softc; 983 984 softc = (struct da_softc *)periph->softc; 985 986 /* 987 * De-register any async callbacks. 988 */ 989 xpt_register_async(0, daasync, periph, periph->path); 990 991 softc->flags |= DA_FLAG_PACK_INVALID; 992 993 /* 994 * Return all queued I/O with ENXIO. 995 * XXX Handle any transactions queued to the card 996 * with XPT_ABORT_CCB. 997 */ 998 bioq_flush(&softc->bio_queue, NULL, ENXIO); 999 1000 disk_gone(softc->disk); 1001 xpt_print(periph->path, "lost device - %d outstanding\n", 1002 softc->outstanding_cmds); 1003 } 1004 1005 static void 1006 dacleanup(struct cam_periph *periph) 1007 { 1008 struct da_softc *softc; 1009 1010 softc = (struct da_softc *)periph->softc; 1011 1012 xpt_print(periph->path, "removing device entry\n"); 1013 cam_periph_unlock(periph); 1014 1015 /* 1016 * If we can't free the sysctl tree, oh well... 1017 */ 1018 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1019 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1020 xpt_print(periph->path, "can't remove sysctl context\n"); 1021 } 1022 1023 disk_destroy(softc->disk); 1024 callout_drain(&softc->sendordered_c); 1025 free(softc, M_DEVBUF); 1026 cam_periph_lock(periph); 1027 } 1028 1029 static void 1030 daasync(void *callback_arg, u_int32_t code, 1031 struct cam_path *path, void *arg) 1032 { 1033 struct cam_periph *periph; 1034 1035 periph = (struct cam_periph *)callback_arg; 1036 switch (code) { 1037 case AC_FOUND_DEVICE: 1038 { 1039 struct ccb_getdev *cgd; 1040 cam_status status; 1041 1042 cgd = (struct ccb_getdev *)arg; 1043 if (cgd == NULL) 1044 break; 1045 1046 if (cgd->protocol != PROTO_SCSI) 1047 break; 1048 1049 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1050 && SID_TYPE(&cgd->inq_data) != T_RBC 1051 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1052 break; 1053 1054 /* 1055 * Allocate a peripheral instance for 1056 * this device and start the probe 1057 * process. 1058 */ 1059 status = cam_periph_alloc(daregister, daoninvalidate, 1060 dacleanup, dastart, 1061 "da", CAM_PERIPH_BIO, 1062 cgd->ccb_h.path, daasync, 1063 AC_FOUND_DEVICE, cgd); 1064 1065 if (status != CAM_REQ_CMP 1066 && status != CAM_REQ_INPROG) 1067 printf("daasync: Unable to attach to new device " 1068 "due to status 0x%x\n", status); 1069 return; 1070 } 1071 case AC_ADVINFO_CHANGED: 1072 { 1073 uintptr_t buftype; 1074 1075 buftype = (uintptr_t)arg; 1076 if (buftype == CDAI_TYPE_PHYS_PATH) { 1077 struct da_softc *softc; 1078 1079 softc = periph->softc; 1080 disk_attr_changed(softc->disk, "GEOM::physpath", 1081 M_NOWAIT); 1082 } 1083 break; 1084 } 1085 case AC_SENT_BDR: 1086 case AC_BUS_RESET: 1087 { 1088 struct da_softc *softc; 1089 struct ccb_hdr *ccbh; 1090 1091 softc = (struct da_softc *)periph->softc; 1092 /* 1093 * Don't fail on the expected unit attention 1094 * that will occur. 1095 */ 1096 softc->flags |= DA_FLAG_RETRY_UA; 1097 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1098 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1099 break; 1100 } 1101 default: 1102 break; 1103 } 1104 cam_periph_async(periph, code, path, arg); 1105 } 1106 1107 static void 1108 dasysctlinit(void *context, int pending) 1109 { 1110 struct cam_periph *periph; 1111 struct da_softc *softc; 1112 char tmpstr[80], tmpstr2[80]; 1113 struct ccb_trans_settings cts; 1114 1115 periph = (struct cam_periph *)context; 1116 /* 1117 * periph was held for us when this task was enqueued 1118 */ 1119 if (periph->flags & CAM_PERIPH_INVALID) { 1120 cam_periph_release(periph); 1121 return; 1122 } 1123 1124 softc = (struct da_softc *)periph->softc; 1125 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1126 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1127 1128 sysctl_ctx_init(&softc->sysctl_ctx); 1129 softc->flags |= DA_FLAG_SCTX_INIT; 1130 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1131 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1132 CTLFLAG_RD, 0, tmpstr); 1133 if (softc->sysctl_tree == NULL) { 1134 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1135 cam_periph_release(periph); 1136 return; 1137 } 1138 1139 /* 1140 * Now register the sysctl handler, so the user can change the value on 1141 * the fly. 1142 */ 1143 SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 1144 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1145 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1146 "Minimum CDB size"); 1147 1148 /* 1149 * Add some addressing info. 1150 */ 1151 memset(&cts, 0, sizeof (cts)); 1152 xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1); 1153 cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS; 1154 cts.type = CTS_TYPE_CURRENT_SETTINGS; 1155 cam_periph_lock(periph); 1156 xpt_action((union ccb *)&cts); 1157 cam_periph_unlock(periph); 1158 if (cts.ccb_h.status != CAM_REQ_CMP) { 1159 cam_periph_release(periph); 1160 return; 1161 } 1162 if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) { 1163 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc; 1164 if (fc->valid & CTS_FC_VALID_WWPN) { 1165 softc->wwpn = fc->wwpn; 1166 SYSCTL_ADD_UQUAD(&softc->sysctl_ctx, 1167 SYSCTL_CHILDREN(softc->sysctl_tree), 1168 OID_AUTO, "wwpn", CTLFLAG_RD, 1169 &softc->wwpn, "World Wide Port Name"); 1170 } 1171 } 1172 cam_periph_release(periph); 1173 } 1174 1175 static int 1176 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1177 { 1178 int error, value; 1179 1180 value = *(int *)arg1; 1181 1182 error = sysctl_handle_int(oidp, &value, 0, req); 1183 1184 if ((error != 0) 1185 || (req->newptr == NULL)) 1186 return (error); 1187 1188 /* 1189 * Acceptable values here are 6, 10, 12 or 16. 1190 */ 1191 if (value < 6) 1192 value = 6; 1193 else if ((value > 6) 1194 && (value <= 10)) 1195 value = 10; 1196 else if ((value > 10) 1197 && (value <= 12)) 1198 value = 12; 1199 else if (value > 12) 1200 value = 16; 1201 1202 *(int *)arg1 = value; 1203 1204 return (0); 1205 } 1206 1207 static cam_status 1208 daregister(struct cam_periph *periph, void *arg) 1209 { 1210 struct da_softc *softc; 1211 struct ccb_pathinq cpi; 1212 struct ccb_getdev *cgd; 1213 char tmpstr[80]; 1214 caddr_t match; 1215 1216 cgd = (struct ccb_getdev *)arg; 1217 if (periph == NULL) { 1218 printf("daregister: periph was NULL!!\n"); 1219 return(CAM_REQ_CMP_ERR); 1220 } 1221 1222 if (cgd == NULL) { 1223 printf("daregister: no getdev CCB, can't register device\n"); 1224 return(CAM_REQ_CMP_ERR); 1225 } 1226 1227 softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF, 1228 M_NOWAIT|M_ZERO); 1229 1230 if (softc == NULL) { 1231 printf("daregister: Unable to probe new device. " 1232 "Unable to allocate softc\n"); 1233 return(CAM_REQ_CMP_ERR); 1234 } 1235 1236 LIST_INIT(&softc->pending_ccbs); 1237 softc->state = DA_STATE_PROBE; 1238 bioq_init(&softc->bio_queue); 1239 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1240 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1241 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1242 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1243 1244 periph->softc = softc; 1245 1246 /* 1247 * See if this device has any quirks. 1248 */ 1249 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1250 (caddr_t)da_quirk_table, 1251 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1252 sizeof(*da_quirk_table), scsi_inquiry_match); 1253 1254 if (match != NULL) 1255 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1256 else 1257 softc->quirks = DA_Q_NONE; 1258 1259 /* Check if the SIM does not want 6 byte commands */ 1260 bzero(&cpi, sizeof(cpi)); 1261 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1262 cpi.ccb_h.func_code = XPT_PATH_INQ; 1263 xpt_action((union ccb *)&cpi); 1264 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1265 softc->quirks |= DA_Q_NO_6_BYTE; 1266 1267 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1268 1269 /* 1270 * Take an exclusive refcount on the periph while dastart is called 1271 * to finish the probe. The reference will be dropped in dadone at 1272 * the end of probe. 1273 */ 1274 (void)cam_periph_hold(periph, PRIBIO); 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 mtx_unlock(periph->sim->mtx); 1286 /* 1287 * RBC devices don't have to support READ(6), only READ(10). 1288 */ 1289 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1290 softc->minimum_cmd_size = 10; 1291 else 1292 softc->minimum_cmd_size = 6; 1293 1294 /* 1295 * Load the user's default, if any. 1296 */ 1297 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1298 periph->unit_number); 1299 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1300 1301 /* 1302 * 6, 10, 12 and 16 are the currently permissible values. 1303 */ 1304 if (softc->minimum_cmd_size < 6) 1305 softc->minimum_cmd_size = 6; 1306 else if ((softc->minimum_cmd_size > 6) 1307 && (softc->minimum_cmd_size <= 10)) 1308 softc->minimum_cmd_size = 10; 1309 else if ((softc->minimum_cmd_size > 10) 1310 && (softc->minimum_cmd_size <= 12)) 1311 softc->minimum_cmd_size = 12; 1312 else if (softc->minimum_cmd_size > 12) 1313 softc->minimum_cmd_size = 16; 1314 1315 /* 1316 * Register this media as a disk. 1317 */ 1318 softc->disk = disk_alloc(); 1319 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 1320 periph->unit_number, 0, 1321 DEVSTAT_BS_UNAVAILABLE, 1322 SID_TYPE(&cgd->inq_data) | 1323 XPORT_DEVSTAT_TYPE(cpi.transport), 1324 DEVSTAT_PRIORITY_DISK); 1325 softc->disk->d_open = daopen; 1326 softc->disk->d_close = daclose; 1327 softc->disk->d_strategy = dastrategy; 1328 softc->disk->d_dump = dadump; 1329 softc->disk->d_getattr = dagetattr; 1330 softc->disk->d_name = "da"; 1331 softc->disk->d_drv1 = periph; 1332 if (cpi.maxio == 0) 1333 softc->disk->d_maxsize = DFLTPHYS; /* traditional default */ 1334 else if (cpi.maxio > MAXPHYS) 1335 softc->disk->d_maxsize = MAXPHYS; /* for safety */ 1336 else 1337 softc->disk->d_maxsize = cpi.maxio; 1338 softc->disk->d_unit = periph->unit_number; 1339 softc->disk->d_flags = 0; 1340 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) 1341 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 1342 cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor, 1343 sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr)); 1344 strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr)); 1345 cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)], 1346 cgd->inq_data.product, sizeof(cgd->inq_data.product), 1347 sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr)); 1348 softc->disk->d_hba_vendor = cpi.hba_vendor; 1349 softc->disk->d_hba_device = cpi.hba_device; 1350 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 1351 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 1352 disk_create(softc->disk, DISK_VERSION); 1353 mtx_lock(periph->sim->mtx); 1354 1355 /* 1356 * Add async callbacks for events of interest. 1357 * I don't bother checking if this fails as, 1358 * in most cases, the system will function just 1359 * fine without them and the only alternative 1360 * would be to not attach the device on failure. 1361 */ 1362 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET 1363 | AC_LOST_DEVICE | AC_ADVINFO_CHANGED, 1364 daasync, periph, periph->path); 1365 1366 /* 1367 * Emit an attribute changed notification just in case 1368 * physical path information arrived before our async 1369 * event handler was registered, but after anyone attaching 1370 * to our disk device polled it. 1371 */ 1372 disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT); 1373 1374 xpt_schedule(periph, CAM_PRIORITY_DEV); 1375 1376 return(CAM_REQ_CMP); 1377 } 1378 1379 static void 1380 dastart(struct cam_periph *periph, union ccb *start_ccb) 1381 { 1382 struct da_softc *softc; 1383 1384 softc = (struct da_softc *)periph->softc; 1385 1386 switch (softc->state) { 1387 case DA_STATE_NORMAL: 1388 { 1389 /* Pull a buffer from the queue and get going on it */ 1390 struct bio *bp; 1391 1392 /* 1393 * See if there is a buf with work for us to do.. 1394 */ 1395 bp = bioq_first(&softc->bio_queue); 1396 if (periph->immediate_priority <= periph->pinfo.priority) { 1397 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1398 ("queuing for immediate ccb\n")); 1399 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1400 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1401 periph_links.sle); 1402 periph->immediate_priority = CAM_PRIORITY_NONE; 1403 wakeup(&periph->ccb_list); 1404 } else if (bp == NULL) { 1405 xpt_release_ccb(start_ccb); 1406 } else { 1407 u_int8_t tag_code; 1408 1409 bioq_remove(&softc->bio_queue, bp); 1410 1411 if ((bp->bio_flags & BIO_ORDERED) != 0 1412 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1413 softc->flags &= ~DA_FLAG_NEED_OTAG; 1414 softc->ordered_tag_count++; 1415 tag_code = MSG_ORDERED_Q_TAG; 1416 } else { 1417 tag_code = MSG_SIMPLE_Q_TAG; 1418 } 1419 switch (bp->bio_cmd) { 1420 case BIO_READ: 1421 case BIO_WRITE: 1422 scsi_read_write(&start_ccb->csio, 1423 /*retries*/da_retry_count, 1424 /*cbfcnp*/dadone, 1425 /*tag_action*/tag_code, 1426 /*read_op*/bp->bio_cmd 1427 == BIO_READ, 1428 /*byte2*/0, 1429 softc->minimum_cmd_size, 1430 /*lba*/bp->bio_pblkno, 1431 /*block_count*/bp->bio_bcount / 1432 softc->params.secsize, 1433 /*data_ptr*/ bp->bio_data, 1434 /*dxfer_len*/ bp->bio_bcount, 1435 /*sense_len*/SSD_FULL_SIZE, 1436 da_default_timeout * 1000); 1437 break; 1438 case BIO_FLUSH: 1439 /* 1440 * BIO_FLUSH doesn't currently communicate 1441 * range data, so we synchronize the cache 1442 * over the whole disk. We also force 1443 * ordered tag semantics the flush applies 1444 * to all previously queued I/O. 1445 */ 1446 scsi_synchronize_cache(&start_ccb->csio, 1447 /*retries*/1, 1448 /*cbfcnp*/dadone, 1449 MSG_ORDERED_Q_TAG, 1450 /*begin_lba*/0, 1451 /*lb_count*/0, 1452 SSD_FULL_SIZE, 1453 da_default_timeout*1000); 1454 break; 1455 } 1456 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1457 1458 /* 1459 * Block out any asyncronous callbacks 1460 * while we touch the pending ccb list. 1461 */ 1462 LIST_INSERT_HEAD(&softc->pending_ccbs, 1463 &start_ccb->ccb_h, periph_links.le); 1464 softc->outstanding_cmds++; 1465 1466 /* We expect a unit attention from this device */ 1467 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1468 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1469 softc->flags &= ~DA_FLAG_RETRY_UA; 1470 } 1471 1472 start_ccb->ccb_h.ccb_bp = bp; 1473 bp = bioq_first(&softc->bio_queue); 1474 1475 xpt_action(start_ccb); 1476 } 1477 1478 if (bp != NULL) { 1479 /* Have more work to do, so ensure we stay scheduled */ 1480 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 1481 } 1482 break; 1483 } 1484 case DA_STATE_PROBE: 1485 { 1486 struct ccb_scsiio *csio; 1487 struct scsi_read_capacity_data *rcap; 1488 1489 rcap = (struct scsi_read_capacity_data *) 1490 malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO); 1491 if (rcap == NULL) { 1492 printf("dastart: Couldn't malloc read_capacity data\n"); 1493 /* da_free_periph??? */ 1494 break; 1495 } 1496 csio = &start_ccb->csio; 1497 scsi_read_capacity(csio, 1498 /*retries*/4, 1499 dadone, 1500 MSG_SIMPLE_Q_TAG, 1501 rcap, 1502 SSD_FULL_SIZE, 1503 /*timeout*/5000); 1504 start_ccb->ccb_h.ccb_bp = NULL; 1505 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1506 xpt_action(start_ccb); 1507 break; 1508 } 1509 case DA_STATE_PROBE2: 1510 { 1511 struct ccb_scsiio *csio; 1512 struct scsi_read_capacity_data_long *rcaplong; 1513 1514 rcaplong = (struct scsi_read_capacity_data_long *) 1515 malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO); 1516 if (rcaplong == NULL) { 1517 printf("dastart: Couldn't malloc read_capacity data\n"); 1518 /* da_free_periph??? */ 1519 break; 1520 } 1521 csio = &start_ccb->csio; 1522 scsi_read_capacity_16(csio, 1523 /*retries*/ 4, 1524 /*cbfcnp*/ dadone, 1525 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1526 /*lba*/ 0, 1527 /*reladr*/ 0, 1528 /*pmi*/ 0, 1529 rcaplong, 1530 /*sense_len*/ SSD_FULL_SIZE, 1531 /*timeout*/ 60000); 1532 start_ccb->ccb_h.ccb_bp = NULL; 1533 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1534 xpt_action(start_ccb); 1535 break; 1536 } 1537 } 1538 } 1539 1540 static int 1541 cmd6workaround(union ccb *ccb) 1542 { 1543 struct scsi_rw_6 cmd6; 1544 struct scsi_rw_10 *cmd10; 1545 struct da_softc *softc; 1546 u_int8_t *cdb; 1547 int frozen; 1548 1549 cdb = ccb->csio.cdb_io.cdb_bytes; 1550 1551 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1552 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1553 (*cdb != READ_6 && *cdb != WRITE_6)) 1554 return 0; 1555 1556 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1557 "increasing minimum_cmd_size to 10.\n"); 1558 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1559 softc->minimum_cmd_size = 10; 1560 1561 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1562 cmd10 = (struct scsi_rw_10 *)cdb; 1563 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1564 cmd10->byte2 = 0; 1565 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1566 cmd10->reserved = 0; 1567 scsi_ulto2b(cmd6.length, cmd10->length); 1568 cmd10->control = cmd6.control; 1569 ccb->csio.cdb_len = sizeof(*cmd10); 1570 1571 /* Requeue request, unfreezing queue if necessary */ 1572 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1573 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1574 xpt_action(ccb); 1575 if (frozen) { 1576 cam_release_devq(ccb->ccb_h.path, 1577 /*relsim_flags*/0, 1578 /*reduction*/0, 1579 /*timeout*/0, 1580 /*getcount_only*/0); 1581 } 1582 return (ERESTART); 1583 } 1584 1585 static void 1586 dadone(struct cam_periph *periph, union ccb *done_ccb) 1587 { 1588 struct da_softc *softc; 1589 struct ccb_scsiio *csio; 1590 u_int32_t priority; 1591 1592 softc = (struct da_softc *)periph->softc; 1593 priority = done_ccb->ccb_h.pinfo.priority; 1594 csio = &done_ccb->csio; 1595 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1596 case DA_CCB_BUFFER_IO: 1597 { 1598 struct bio *bp; 1599 1600 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1601 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1602 int error; 1603 int sf; 1604 1605 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1606 sf = SF_RETRY_UA; 1607 else 1608 sf = 0; 1609 1610 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1611 if (error == ERESTART) { 1612 /* 1613 * A retry was scheuled, so 1614 * just return. 1615 */ 1616 return; 1617 } 1618 if (error != 0) { 1619 int queued_error; 1620 1621 /* 1622 * return all queued I/O with EIO, so that 1623 * the client can retry these I/Os in the 1624 * proper order should it attempt to recover. 1625 */ 1626 queued_error = EIO; 1627 1628 if (error == ENXIO 1629 && (softc->flags & DA_FLAG_PACK_INVALID)== 0) { 1630 /* 1631 * Catastrophic error. Mark our pack as 1632 * invalid. 1633 */ 1634 /* 1635 * XXX See if this is really a media 1636 * XXX change first? 1637 */ 1638 xpt_print(periph->path, 1639 "Invalidating pack\n"); 1640 softc->flags |= DA_FLAG_PACK_INVALID; 1641 queued_error = ENXIO; 1642 } 1643 bioq_flush(&softc->bio_queue, NULL, 1644 queued_error); 1645 bp->bio_error = error; 1646 bp->bio_resid = bp->bio_bcount; 1647 bp->bio_flags |= BIO_ERROR; 1648 } else { 1649 bp->bio_resid = csio->resid; 1650 bp->bio_error = 0; 1651 if (bp->bio_resid != 0) 1652 bp->bio_flags |= BIO_ERROR; 1653 } 1654 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1655 cam_release_devq(done_ccb->ccb_h.path, 1656 /*relsim_flags*/0, 1657 /*reduction*/0, 1658 /*timeout*/0, 1659 /*getcount_only*/0); 1660 } else { 1661 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1662 panic("REQ_CMP with QFRZN"); 1663 bp->bio_resid = csio->resid; 1664 if (csio->resid > 0) 1665 bp->bio_flags |= BIO_ERROR; 1666 } 1667 1668 /* 1669 * Block out any asyncronous callbacks 1670 * while we touch the pending ccb list. 1671 */ 1672 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1673 softc->outstanding_cmds--; 1674 if (softc->outstanding_cmds == 0) 1675 softc->flags |= DA_FLAG_WENT_IDLE; 1676 1677 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 1678 xpt_print(periph->path, "oustanding %d\n", 1679 softc->outstanding_cmds); 1680 } 1681 1682 biodone(bp); 1683 break; 1684 } 1685 case DA_CCB_PROBE: 1686 case DA_CCB_PROBE2: 1687 { 1688 struct scsi_read_capacity_data *rdcap; 1689 struct scsi_read_capacity_data_long *rcaplong; 1690 char announce_buf[80]; 1691 1692 rdcap = NULL; 1693 rcaplong = NULL; 1694 if (softc->state == DA_STATE_PROBE) 1695 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1696 else 1697 rcaplong = (struct scsi_read_capacity_data_long *) 1698 csio->data_ptr; 1699 1700 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1701 struct disk_params *dp; 1702 uint32_t block_size; 1703 uint64_t maxsector; 1704 1705 if (softc->state == DA_STATE_PROBE) { 1706 block_size = scsi_4btoul(rdcap->length); 1707 maxsector = scsi_4btoul(rdcap->addr); 1708 1709 /* 1710 * According to SBC-2, if the standard 10 1711 * byte READ CAPACITY command returns 2^32, 1712 * we should issue the 16 byte version of 1713 * the command, since the device in question 1714 * has more sectors than can be represented 1715 * with the short version of the command. 1716 */ 1717 if (maxsector == 0xffffffff) { 1718 softc->state = DA_STATE_PROBE2; 1719 free(rdcap, M_SCSIDA); 1720 xpt_release_ccb(done_ccb); 1721 xpt_schedule(periph, priority); 1722 return; 1723 } 1724 } else { 1725 block_size = scsi_4btoul(rcaplong->length); 1726 maxsector = scsi_8btou64(rcaplong->addr); 1727 } 1728 1729 /* 1730 * Because GEOM code just will panic us if we 1731 * give them an 'illegal' value we'll avoid that 1732 * here. 1733 */ 1734 if (block_size == 0 && maxsector == 0) { 1735 snprintf(announce_buf, sizeof(announce_buf), 1736 "0MB (no media?)"); 1737 } else if (block_size >= MAXPHYS || block_size == 0) { 1738 xpt_print(periph->path, 1739 "unsupportable block size %ju\n", 1740 (uintmax_t) block_size); 1741 announce_buf[0] = '\0'; 1742 cam_periph_invalidate(periph); 1743 } else { 1744 dasetgeom(periph, block_size, maxsector); 1745 dp = &softc->params; 1746 snprintf(announce_buf, sizeof(announce_buf), 1747 "%juMB (%ju %u byte sectors: %dH %dS/T " 1748 "%dC)", (uintmax_t) 1749 (((uintmax_t)dp->secsize * 1750 dp->sectors) / (1024*1024)), 1751 (uintmax_t)dp->sectors, 1752 dp->secsize, dp->heads, 1753 dp->secs_per_track, dp->cylinders); 1754 } 1755 } else { 1756 int error; 1757 1758 announce_buf[0] = '\0'; 1759 1760 /* 1761 * Retry any UNIT ATTENTION type errors. They 1762 * are expected at boot. 1763 */ 1764 error = daerror(done_ccb, CAM_RETRY_SELTO, 1765 SF_RETRY_UA|SF_NO_PRINT); 1766 if (error == ERESTART) { 1767 /* 1768 * A retry was scheuled, so 1769 * just return. 1770 */ 1771 return; 1772 } else if (error != 0) { 1773 struct scsi_sense_data *sense; 1774 int asc, ascq; 1775 int sense_key, error_code; 1776 int have_sense; 1777 cam_status status; 1778 struct ccb_getdev cgd; 1779 1780 /* Don't wedge this device's queue */ 1781 status = done_ccb->ccb_h.status; 1782 if ((status & CAM_DEV_QFRZN) != 0) 1783 cam_release_devq(done_ccb->ccb_h.path, 1784 /*relsim_flags*/0, 1785 /*reduction*/0, 1786 /*timeout*/0, 1787 /*getcount_only*/0); 1788 1789 1790 xpt_setup_ccb(&cgd.ccb_h, 1791 done_ccb->ccb_h.path, 1792 CAM_PRIORITY_NORMAL); 1793 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1794 xpt_action((union ccb *)&cgd); 1795 1796 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1797 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1798 || ((status & CAM_AUTOSNS_VALID) == 0)) 1799 have_sense = FALSE; 1800 else 1801 have_sense = TRUE; 1802 1803 if (have_sense) { 1804 sense = &csio->sense_data; 1805 scsi_extract_sense_len(sense, 1806 csio->sense_len - csio->sense_resid, 1807 &error_code, &sense_key, &asc, 1808 &ascq, /*show_errors*/ 1); 1809 } 1810 /* 1811 * Attach to anything that claims to be a 1812 * direct access or optical disk device, 1813 * as long as it doesn't return a "Logical 1814 * unit not supported" (0x25) error. 1815 */ 1816 if ((have_sense) && (asc != 0x25) 1817 && (error_code == SSD_CURRENT_ERROR)) { 1818 const char *sense_key_desc; 1819 const char *asc_desc; 1820 1821 scsi_sense_desc(sense_key, asc, ascq, 1822 &cgd.inq_data, 1823 &sense_key_desc, 1824 &asc_desc); 1825 snprintf(announce_buf, 1826 sizeof(announce_buf), 1827 "Attempt to query device " 1828 "size failed: %s, %s", 1829 sense_key_desc, 1830 asc_desc); 1831 } else { 1832 if (have_sense) 1833 scsi_sense_print( 1834 &done_ccb->csio); 1835 else { 1836 xpt_print(periph->path, 1837 "got CAM status %#x\n", 1838 done_ccb->ccb_h.status); 1839 } 1840 1841 xpt_print(periph->path, "fatal error, " 1842 "failed to attach to device\n"); 1843 1844 /* 1845 * Free up resources. 1846 */ 1847 cam_periph_invalidate(periph); 1848 } 1849 } 1850 } 1851 free(csio->data_ptr, M_SCSIDA); 1852 if (announce_buf[0] != '\0') { 1853 xpt_announce_periph(periph, announce_buf); 1854 /* 1855 * Create our sysctl variables, now that we know 1856 * we have successfully attached. 1857 */ 1858 (void) cam_periph_acquire(periph); /* increase the refcount */ 1859 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1860 } 1861 softc->state = DA_STATE_NORMAL; 1862 /* 1863 * Since our peripheral may be invalidated by an error 1864 * above or an external event, we must release our CCB 1865 * before releasing the probe lock on the peripheral. 1866 * The peripheral will only go away once the last lock 1867 * is removed, and we need it around for the CCB release 1868 * operation. 1869 */ 1870 xpt_release_ccb(done_ccb); 1871 cam_periph_unhold(periph); 1872 return; 1873 } 1874 case DA_CCB_WAITING: 1875 { 1876 /* Caller will release the CCB */ 1877 wakeup(&done_ccb->ccb_h.cbfcnp); 1878 return; 1879 } 1880 case DA_CCB_DUMP: 1881 /* No-op. We're polling */ 1882 return; 1883 default: 1884 break; 1885 } 1886 xpt_release_ccb(done_ccb); 1887 } 1888 1889 static int 1890 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1891 { 1892 struct da_softc *softc; 1893 struct cam_periph *periph; 1894 int error; 1895 1896 periph = xpt_path_periph(ccb->ccb_h.path); 1897 softc = (struct da_softc *)periph->softc; 1898 1899 /* 1900 * Automatically detect devices that do not support 1901 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1902 */ 1903 error = 0; 1904 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1905 error = cmd6workaround(ccb); 1906 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1907 CAM_SCSI_STATUS_ERROR) 1908 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1909 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1910 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1911 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1912 int sense_key, error_code, asc, ascq; 1913 1914 scsi_extract_sense(&ccb->csio.sense_data, 1915 &error_code, &sense_key, &asc, &ascq); 1916 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1917 error = cmd6workaround(ccb); 1918 } 1919 if (error == ERESTART) 1920 return (ERESTART); 1921 1922 /* 1923 * XXX 1924 * Until we have a better way of doing pack validation, 1925 * don't treat UAs as errors. 1926 */ 1927 sense_flags |= SF_RETRY_UA; 1928 return(cam_periph_error(ccb, cam_flags, sense_flags, 1929 &softc->saved_ccb)); 1930 } 1931 1932 static void 1933 daprevent(struct cam_periph *periph, int action) 1934 { 1935 struct da_softc *softc; 1936 union ccb *ccb; 1937 int error; 1938 1939 softc = (struct da_softc *)periph->softc; 1940 1941 if (((action == PR_ALLOW) 1942 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1943 || ((action == PR_PREVENT) 1944 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1945 return; 1946 } 1947 1948 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1949 1950 scsi_prevent(&ccb->csio, 1951 /*retries*/1, 1952 /*cbcfp*/dadone, 1953 MSG_SIMPLE_Q_TAG, 1954 action, 1955 SSD_FULL_SIZE, 1956 5000); 1957 1958 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 1959 SF_RETRY_UA, softc->disk->d_devstat); 1960 1961 if (error == 0) { 1962 if (action == PR_ALLOW) 1963 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1964 else 1965 softc->flags |= DA_FLAG_PACK_LOCKED; 1966 } 1967 1968 xpt_release_ccb(ccb); 1969 } 1970 1971 static int 1972 dagetcapacity(struct cam_periph *periph) 1973 { 1974 struct da_softc *softc; 1975 union ccb *ccb; 1976 struct scsi_read_capacity_data *rcap; 1977 struct scsi_read_capacity_data_long *rcaplong; 1978 uint32_t block_len; 1979 uint64_t maxsector; 1980 int error; 1981 u_int32_t sense_flags; 1982 1983 softc = (struct da_softc *)periph->softc; 1984 block_len = 0; 1985 maxsector = 0; 1986 error = 0; 1987 sense_flags = SF_RETRY_UA; 1988 if (softc->flags & DA_FLAG_PACK_REMOVABLE) 1989 sense_flags |= SF_NO_PRINT; 1990 1991 /* Do a read capacity */ 1992 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong), 1993 M_SCSIDA, 1994 M_NOWAIT); 1995 if (rcap == NULL) 1996 return (ENOMEM); 1997 1998 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1999 scsi_read_capacity(&ccb->csio, 2000 /*retries*/4, 2001 /*cbfncp*/dadone, 2002 MSG_SIMPLE_Q_TAG, 2003 rcap, 2004 SSD_FULL_SIZE, 2005 /*timeout*/60000); 2006 ccb->ccb_h.ccb_bp = NULL; 2007 2008 error = cam_periph_runccb(ccb, daerror, 2009 /*cam_flags*/CAM_RETRY_SELTO, 2010 sense_flags, 2011 softc->disk->d_devstat); 2012 2013 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2014 cam_release_devq(ccb->ccb_h.path, 2015 /*relsim_flags*/0, 2016 /*reduction*/0, 2017 /*timeout*/0, 2018 /*getcount_only*/0); 2019 2020 if (error == 0) { 2021 block_len = scsi_4btoul(rcap->length); 2022 maxsector = scsi_4btoul(rcap->addr); 2023 2024 if (maxsector != 0xffffffff) 2025 goto done; 2026 } else 2027 goto done; 2028 2029 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 2030 2031 scsi_read_capacity_16(&ccb->csio, 2032 /*retries*/ 4, 2033 /*cbfcnp*/ dadone, 2034 /*tag_action*/ MSG_SIMPLE_Q_TAG, 2035 /*lba*/ 0, 2036 /*reladr*/ 0, 2037 /*pmi*/ 0, 2038 rcaplong, 2039 /*sense_len*/ SSD_FULL_SIZE, 2040 /*timeout*/ 60000); 2041 ccb->ccb_h.ccb_bp = NULL; 2042 2043 error = cam_periph_runccb(ccb, daerror, 2044 /*cam_flags*/CAM_RETRY_SELTO, 2045 sense_flags, 2046 softc->disk->d_devstat); 2047 2048 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2049 cam_release_devq(ccb->ccb_h.path, 2050 /*relsim_flags*/0, 2051 /*reduction*/0, 2052 /*timeout*/0, 2053 /*getcount_only*/0); 2054 2055 if (error == 0) { 2056 block_len = scsi_4btoul(rcaplong->length); 2057 maxsector = scsi_8btou64(rcaplong->addr); 2058 } 2059 2060 done: 2061 2062 if (error == 0) { 2063 if (block_len >= MAXPHYS || block_len == 0) { 2064 xpt_print(periph->path, 2065 "unsupportable block size %ju\n", 2066 (uintmax_t) block_len); 2067 error = EINVAL; 2068 } else 2069 dasetgeom(periph, block_len, maxsector); 2070 } 2071 2072 xpt_release_ccb(ccb); 2073 2074 free(rcap, M_SCSIDA); 2075 2076 return (error); 2077 } 2078 2079 static void 2080 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2081 { 2082 struct ccb_calc_geometry ccg; 2083 struct da_softc *softc; 2084 struct disk_params *dp; 2085 2086 softc = (struct da_softc *)periph->softc; 2087 2088 dp = &softc->params; 2089 dp->secsize = block_len; 2090 dp->sectors = maxsector + 1; 2091 /* 2092 * Have the controller provide us with a geometry 2093 * for this disk. The only time the geometry 2094 * matters is when we boot and the controller 2095 * is the only one knowledgeable enough to come 2096 * up with something that will make this a bootable 2097 * device. 2098 */ 2099 xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2100 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2101 ccg.block_size = dp->secsize; 2102 ccg.volume_size = dp->sectors; 2103 ccg.heads = 0; 2104 ccg.secs_per_track = 0; 2105 ccg.cylinders = 0; 2106 xpt_action((union ccb*)&ccg); 2107 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2108 /* 2109 * We don't know what went wrong here- but just pick 2110 * a geometry so we don't have nasty things like divide 2111 * by zero. 2112 */ 2113 dp->heads = 255; 2114 dp->secs_per_track = 255; 2115 dp->cylinders = dp->sectors / (255 * 255); 2116 if (dp->cylinders == 0) { 2117 dp->cylinders = 1; 2118 } 2119 } else { 2120 dp->heads = ccg.heads; 2121 dp->secs_per_track = ccg.secs_per_track; 2122 dp->cylinders = ccg.cylinders; 2123 } 2124 } 2125 2126 static void 2127 dasendorderedtag(void *arg) 2128 { 2129 struct da_softc *softc = arg; 2130 2131 if (da_send_ordered) { 2132 if ((softc->ordered_tag_count == 0) 2133 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2134 softc->flags |= DA_FLAG_NEED_OTAG; 2135 } 2136 if (softc->outstanding_cmds > 0) 2137 softc->flags &= ~DA_FLAG_WENT_IDLE; 2138 2139 softc->ordered_tag_count = 0; 2140 } 2141 /* Queue us up again */ 2142 callout_reset(&softc->sendordered_c, 2143 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2144 dasendorderedtag, softc); 2145 } 2146 2147 /* 2148 * Step through all DA peripheral drivers, and if the device is still open, 2149 * sync the disk cache to physical media. 2150 */ 2151 static void 2152 dashutdown(void * arg, int howto) 2153 { 2154 struct cam_periph *periph; 2155 struct da_softc *softc; 2156 2157 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2158 union ccb ccb; 2159 2160 cam_periph_lock(periph); 2161 softc = (struct da_softc *)periph->softc; 2162 2163 /* 2164 * We only sync the cache if the drive is still open, and 2165 * if the drive is capable of it.. 2166 */ 2167 if (((softc->flags & DA_FLAG_OPEN) == 0) 2168 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2169 cam_periph_unlock(periph); 2170 continue; 2171 } 2172 2173 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 2174 2175 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2176 scsi_synchronize_cache(&ccb.csio, 2177 /*retries*/1, 2178 /*cbfcnp*/dadone, 2179 MSG_SIMPLE_Q_TAG, 2180 /*begin_lba*/0, /* whole disk */ 2181 /*lb_count*/0, 2182 SSD_FULL_SIZE, 2183 60 * 60 * 1000); 2184 2185 xpt_polled_action(&ccb); 2186 2187 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2188 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2189 CAM_SCSI_STATUS_ERROR) 2190 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2191 int error_code, sense_key, asc, ascq; 2192 2193 scsi_extract_sense(&ccb.csio.sense_data, 2194 &error_code, &sense_key, 2195 &asc, &ascq); 2196 2197 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2198 scsi_sense_print(&ccb.csio); 2199 } else { 2200 xpt_print(periph->path, "Synchronize " 2201 "cache failed, status == 0x%x, scsi status " 2202 "== 0x%x\n", ccb.ccb_h.status, 2203 ccb.csio.scsi_status); 2204 } 2205 } 2206 2207 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2208 cam_release_devq(ccb.ccb_h.path, 2209 /*relsim_flags*/0, 2210 /*reduction*/0, 2211 /*timeout*/0, 2212 /*getcount_only*/0); 2213 cam_periph_unlock(periph); 2214 } 2215 } 2216 2217 #else /* !_KERNEL */ 2218 2219 /* 2220 * XXX This is only left out of the kernel build to silence warnings. If, 2221 * for some reason this function is used in the kernel, the ifdefs should 2222 * be moved so it is included both in the kernel and userland. 2223 */ 2224 void 2225 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2226 void (*cbfcnp)(struct cam_periph *, union ccb *), 2227 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2228 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2229 u_int32_t timeout) 2230 { 2231 struct scsi_format_unit *scsi_cmd; 2232 2233 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2234 scsi_cmd->opcode = FORMAT_UNIT; 2235 scsi_cmd->byte2 = byte2; 2236 scsi_ulto2b(ileave, scsi_cmd->interleave); 2237 2238 cam_fill_csio(csio, 2239 retries, 2240 cbfcnp, 2241 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2242 tag_action, 2243 data_ptr, 2244 dxfer_len, 2245 sense_len, 2246 sizeof(*scsi_cmd), 2247 timeout); 2248 } 2249 2250 #endif /* _KERNEL */ 2251