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 * $FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.42.2.46 2003/10/21 22:18:19 thomas Exp $ 29 * $DragonFly: src/sys/bus/cam/scsi/scsi_da.c,v 1.59 2008/08/29 20:08:40 dillon Exp $ 30 */ 31 32 #include <sys/param.h> 33 #include <sys/bootmaj.h> 34 35 #ifdef _KERNEL 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/buf.h> 39 #include <sys/sysctl.h> 40 #include <sys/taskqueue.h> 41 #include <sys/lock.h> 42 #include <sys/conf.h> 43 #include <sys/devicestat.h> 44 #include <sys/disk.h> 45 #include <sys/dtype.h> 46 #include <sys/eventhandler.h> 47 #include <sys/malloc.h> 48 #include <sys/cons.h> 49 #include <sys/proc.h> 50 #include <sys/buf2.h> 51 #include <sys/thread2.h> 52 #endif /* _KERNEL */ 53 54 #ifdef _KERNEL 55 #include <vm/pmap.h> 56 #endif 57 58 #ifndef _KERNEL 59 #include <stdio.h> 60 #include <string.h> 61 #endif /* _KERNEL */ 62 63 #include "../cam.h" 64 #include "../cam_ccb.h" 65 #include "../cam_extend.h" 66 #include "../cam_periph.h" 67 #include "../cam_xpt_periph.h" 68 #include "../cam_sim.h" 69 70 #include "scsi_message.h" 71 72 #ifndef _KERNEL 73 #include "scsi_da.h" 74 #endif /* !_KERNEL */ 75 76 #ifdef _KERNEL 77 typedef enum { 78 DA_STATE_PROBE, 79 DA_STATE_PROBE2, 80 DA_STATE_NORMAL 81 } da_state; 82 83 typedef enum { 84 DA_FLAG_PACK_INVALID = 0x001, 85 DA_FLAG_NEW_PACK = 0x002, 86 DA_FLAG_PACK_LOCKED = 0x004, 87 DA_FLAG_PACK_REMOVABLE = 0x008, 88 DA_FLAG_TAGGED_QUEUING = 0x010, 89 DA_FLAG_NEED_OTAG = 0x020, 90 DA_FLAG_WENT_IDLE = 0x040, 91 DA_FLAG_RETRY_UA = 0x080, 92 DA_FLAG_OPEN = 0x100, 93 DA_FLAG_SCTX_INIT = 0x200 94 } da_flags; 95 96 typedef enum { 97 DA_Q_NONE = 0x00, 98 DA_Q_NO_SYNC_CACHE = 0x01, 99 DA_Q_NO_6_BYTE = 0x02, 100 DA_Q_NO_PREVENT = 0x04 101 } da_quirks; 102 103 typedef enum { 104 DA_CCB_PROBE = 0x01, 105 DA_CCB_PROBE2 = 0x02, 106 DA_CCB_BUFFER_IO = 0x03, 107 DA_CCB_WAITING = 0x04, 108 DA_CCB_DUMP = 0x05, 109 DA_CCB_TYPE_MASK = 0x0F, 110 DA_CCB_RETRY_UA = 0x10 111 } da_ccb_state; 112 113 /* Offsets into our private area for storing information */ 114 #define ccb_state ppriv_field0 115 #define ccb_bio ppriv_ptr1 116 117 struct disk_params { 118 u_int8_t heads; 119 u_int32_t cylinders; 120 u_int8_t secs_per_track; 121 u_int32_t secsize; /* Number of bytes/sector */ 122 u_int64_t sectors; /* total number sectors */ 123 }; 124 125 struct da_softc { 126 struct bio_queue_head bio_queue; 127 struct devstat device_stats; 128 SLIST_ENTRY(da_softc) links; 129 LIST_HEAD(, ccb_hdr) pending_ccbs; 130 da_state state; 131 da_flags flags; 132 da_quirks quirks; 133 int minimum_cmd_size; 134 int ordered_tag_count; 135 int outstanding_cmds; 136 struct disk_params params; 137 struct disk disk; 138 union ccb saved_ccb; 139 struct task sysctl_task; 140 struct sysctl_ctx_list sysctl_ctx; 141 struct sysctl_oid *sysctl_tree; 142 struct callout sendordered_c; 143 }; 144 145 struct da_quirk_entry { 146 struct scsi_inquiry_pattern inq_pat; 147 da_quirks quirks; 148 }; 149 150 static const char quantum[] = "QUANTUM"; 151 static const char microp[] = "MICROP"; 152 153 static struct da_quirk_entry da_quirk_table[] = 154 { 155 /* SPI, FC devices */ 156 { 157 /* 158 * Fujitsu M2513A MO drives. 159 * Tested devices: M2513A2 firmware versions 1200 & 1300. 160 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 161 * Reported by: W.Scholten <whs@xs4all.nl> 162 */ 163 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 164 /*quirks*/ DA_Q_NO_SYNC_CACHE 165 }, 166 { 167 /* See above. */ 168 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 169 /*quirks*/ DA_Q_NO_SYNC_CACHE 170 }, 171 { 172 /* 173 * This particular Fujitsu drive doesn't like the 174 * synchronize cache command. 175 * Reported by: Tom Jackson <toj@gorilla.net> 176 */ 177 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 178 /*quirks*/ DA_Q_NO_SYNC_CACHE 179 }, 180 { 181 /* 182 * This drive doesn't like the synchronize cache command 183 * either. Reported by: Matthew Jacob <mjacob@feral.com> 184 * in NetBSD PR kern/6027, August 24, 1998. 185 */ 186 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 187 /*quirks*/ DA_Q_NO_SYNC_CACHE 188 }, 189 { 190 /* 191 * This drive doesn't like the synchronize cache command 192 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 193 * (PR 8882). 194 */ 195 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 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, "NEC", "D3847*", "*"}, 204 /*quirks*/ DA_Q_NO_SYNC_CACHE 205 }, 206 { 207 /* 208 * Doesn't like the synchronize cache command. 209 * Reported by: Blaz Zupan <blaz@gold.amis.net> 210 */ 211 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 212 /*quirks*/ DA_Q_NO_SYNC_CACHE 213 }, 214 { 215 /* 216 * Doesn't like the synchronize cache command. 217 */ 218 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 219 /*quirks*/ DA_Q_NO_SYNC_CACHE 220 }, 221 { 222 /* 223 * Doesn't like the synchronize cache command. 224 * Reported by: walter@pelissero.de 225 */ 226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 227 /*quirks*/ DA_Q_NO_SYNC_CACHE 228 }, 229 { 230 /* 231 * Doesn't work correctly with 6 byte reads/writes. 232 * Returns illegal request, and points to byte 9 of the 233 * 6-byte CDB. 234 * Reported by: Adam McDougall <bsdx@spawnet.com> 235 */ 236 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 237 /*quirks*/ DA_Q_NO_6_BYTE 238 }, 239 { 240 /* See above. */ 241 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 242 /*quirks*/ DA_Q_NO_6_BYTE 243 }, 244 { 245 /* 246 * Doesn't like the synchronize cache command. 247 * Reported by: walter@pelissero.de 248 */ 249 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 250 /*quirks*/ DA_Q_NO_SYNC_CACHE 251 }, 252 { 253 /* 254 * The CISS RAID controllers do not support SYNC_CACHE 255 */ 256 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 257 /*quirks*/ DA_Q_NO_SYNC_CACHE 258 }, 259 /* USB mass storage devices supported by umass(4) */ 260 { 261 /* 262 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 263 * PR: kern/51675 264 */ 265 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 266 /*quirks*/ DA_Q_NO_SYNC_CACHE 267 }, 268 { 269 /* 270 * Power Quotient Int. (PQI) USB flash key 271 * PR: kern/53067 272 */ 273 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 274 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 275 }, 276 { 277 /* 278 * Creative Nomad MUVO mp3 player (USB) 279 * PR: kern/53094 280 */ 281 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 282 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 283 }, 284 { 285 /* 286 * Jungsoft NEXDISK USB flash key 287 * PR: kern/54737 288 */ 289 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 290 /*quirks*/ DA_Q_NO_SYNC_CACHE 291 }, 292 { 293 /* 294 * FreeDik USB Mini Data Drive 295 * PR: kern/54786 296 */ 297 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 298 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 299 }, 300 { 301 /* 302 * Sigmatel USB Flash MP3 Player 303 * PR: kern/57046 304 */ 305 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 306 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 307 }, 308 { 309 /* 310 * Neuros USB Digital Audio Computer 311 * PR: kern/63645 312 */ 313 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 314 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 315 }, 316 { 317 /* 318 * SEAGRAND NP-900 MP3 Player 319 * PR: kern/64563 320 */ 321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 322 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 323 }, 324 { 325 /* 326 * iRiver iFP MP3 player (with UMS Firmware) 327 * PR: kern/54881, i386/63941, kern/66124 328 */ 329 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 330 /*quirks*/ DA_Q_NO_SYNC_CACHE 331 }, 332 { 333 /* 334 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 335 * PR: kern/70158 336 */ 337 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 338 /*quirks*/ DA_Q_NO_SYNC_CACHE 339 }, 340 { 341 /* 342 * ZICPlay USB MP3 Player with FM 343 * PR: kern/75057 344 */ 345 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 346 /*quirks*/ DA_Q_NO_SYNC_CACHE 347 }, 348 { 349 /* 350 * TEAC USB floppy mechanisms 351 */ 352 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 353 /*quirks*/ DA_Q_NO_SYNC_CACHE 354 }, 355 { 356 /* 357 * Kingston DataTraveler II+ USB Pen-Drive. 358 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 359 */ 360 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", 361 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 362 }, 363 { 364 /* 365 * Motorola E398 Mobile Phone (TransFlash memory card). 366 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 367 * PR: usb/89889 368 */ 369 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 370 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 371 }, 372 { 373 /* 374 * Qware BeatZkey! Pro 375 * PR: usb/79164 376 */ 377 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 378 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 379 }, 380 { 381 /* 382 * Time DPA20B 1GB MP3 Player 383 * PR: usb/81846 384 */ 385 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 386 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 387 }, 388 { 389 /* 390 * Samsung USB key 128Mb 391 * PR: usb/90081 392 */ 393 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 394 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 395 }, 396 { 397 /* 398 * Kingston DataTraveler 2.0 USB Flash memory. 399 * PR: usb/89196 400 */ 401 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 402 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 403 }, 404 { 405 /* 406 * Creative MUVO Slim mp3 player (USB) 407 * PR: usb/86131 408 */ 409 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 410 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 411 }, 412 { 413 /* 414 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 415 * PR: usb/80487 416 */ 417 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 418 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 419 }, 420 { 421 /* 422 * SanDisk Micro Cruzer 128MB 423 * PR: usb/75970 424 */ 425 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 426 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 427 }, 428 { 429 /* 430 * TOSHIBA TransMemory USB sticks 431 * PR: kern/94660 432 */ 433 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 434 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 435 }, 436 { 437 /* 438 * PNY USB Flash keys 439 * PR: usb/75578, usb/72344, usb/65436 440 */ 441 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 442 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 443 }, 444 { 445 /* 446 * Genesys 6-in-1 Card Reader 447 * PR: usb/94647 448 */ 449 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 450 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 451 }, 452 { 453 /* 454 * Rekam Digital CAMERA 455 * PR: usb/98713 456 */ 457 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 458 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 459 }, 460 { 461 /* 462 * iRiver H10 MP3 player 463 * PR: usb/102547 464 */ 465 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 466 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 467 }, 468 { 469 /* 470 * iRiver U10 MP3 player 471 * PR: usb/92306 472 */ 473 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", 474 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 475 }, 476 { 477 /* 478 * X-Micro Flash Disk 479 * PR: usb/96901 480 */ 481 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", 482 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 483 }, 484 { 485 /* 486 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 487 * PR: usb/96546 488 */ 489 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 490 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 491 }, 492 { 493 /* 494 * Denver MP3 player 495 * PR: usb/107101 496 */ 497 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 498 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 499 }, 500 { 501 /* 502 * Philips USB Key Audio KEY013 503 * PR: usb/68412 504 */ 505 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, 506 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 507 }, 508 { 509 /* 510 * JNC MP3 Player 511 * PR: usb/94439 512 */ 513 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", 514 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 515 }, 516 { 517 /* 518 * SAMSUNG MP0402H 519 * PR: usb/108427 520 */ 521 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, 522 /*quirks*/ DA_Q_NO_SYNC_CACHE 523 }, 524 { 525 /* 526 * I/O Magic USB flash - Giga Bank 527 * PR: usb/108810 528 */ 529 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, 530 /*quirks*/ DA_Q_NO_SYNC_CACHE 531 }, 532 { 533 /* 534 * JoyFly 128mb USB Flash Drive 535 * PR: 96133 536 */ 537 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", 538 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 539 }, 540 { 541 /* 542 * ChipsBnk usb stick 543 * PR: 103702 544 */ 545 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", 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 * USB 2.0 (HS) Flash Disk MP3 player 563 */ 564 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk", "*"}, 565 /*quirks*/ DA_Q_NO_SYNC_CACHE 566 }, 567 }; 568 569 static d_open_t daopen; 570 static d_close_t daclose; 571 static d_strategy_t dastrategy; 572 static d_dump_t dadump; 573 static periph_init_t dainit; 574 static void daasync(void *callback_arg, u_int32_t code, 575 struct cam_path *path, void *arg); 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); 589 590 static timeout_t dasendorderedtag; 591 static void dashutdown(void *arg, int howto); 592 593 #ifndef DA_DEFAULT_TIMEOUT 594 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 595 #endif 596 597 #ifndef DA_DEFAULT_RETRY 598 #define DA_DEFAULT_RETRY 4 599 #endif 600 601 #ifndef DA_DEFAULT_SEND_ORDERED 602 #define DA_DEFAULT_SEND_ORDERED 1 603 #endif 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 static struct callout dasendorderedtag_ch; 609 610 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 611 "CAM Direct Access Disk driver"); 612 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 613 &da_retry_count, 0, "Normal I/O retry count"); 614 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 615 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 616 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 617 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 618 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 619 &da_send_ordered, 0, "Send Ordered Tags"); 620 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 621 622 /* 623 * DA_ORDEREDTAG_INTERVAL determines how often, relative 624 * to the default timeout, we check to see whether an ordered 625 * tagged transaction is appropriate to prevent simple tag 626 * starvation. Since we'd like to ensure that there is at least 627 * 1/2 of the timeout length left for a starved transaction to 628 * complete after we've sent an ordered tag, we must poll at least 629 * four times in every timeout period. This takes care of the worst 630 * case where a starved transaction starts during an interval that 631 * meets the requirement "don't send an ordered tag" test so it takes 632 * us two intervals to determine that a tag must be sent. 633 */ 634 #ifndef DA_ORDEREDTAG_INTERVAL 635 #define DA_ORDEREDTAG_INTERVAL 4 636 #endif 637 638 static struct periph_driver dadriver = 639 { 640 dainit, "da", 641 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 642 }; 643 644 PERIPHDRIVER_DECLARE(da, dadriver); 645 646 static struct dev_ops da_ops = { 647 { "da", DA_CDEV_MAJOR, D_DISK }, 648 .d_open = daopen, 649 .d_close = daclose, 650 .d_read = physread, 651 .d_write = physwrite, 652 .d_strategy = dastrategy, 653 .d_dump = dadump 654 }; 655 656 static struct extend_array *daperiphs; 657 658 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers"); 659 660 static int 661 daopen(struct dev_open_args *ap) 662 { 663 cdev_t dev = ap->a_head.a_dev; 664 struct cam_periph *periph; 665 struct da_softc *softc; 666 struct disk_info info; 667 int unit; 668 int error; 669 670 unit = dkunit(dev); 671 periph = cam_extend_get(daperiphs, unit); 672 if (periph == NULL) { 673 return (ENXIO); 674 } 675 676 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 677 return(ENXIO); 678 } 679 680 cam_periph_lock(periph); 681 if ((error = cam_periph_hold(periph, PCATCH)) != 0) { 682 cam_periph_unlock(periph); 683 cam_periph_release(periph); 684 return (error); 685 } 686 687 unit = periph->unit_number; 688 softc = (struct da_softc *)periph->softc; 689 softc->flags |= DA_FLAG_OPEN; 690 691 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 692 ("daopen: dev=%s (unit %d)\n", devtoname(dev), 693 unit)); 694 695 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 696 /* Invalidate our pack information. */ 697 disk_invalidate(&softc->disk); 698 softc->flags &= ~DA_FLAG_PACK_INVALID; 699 } 700 701 error = dagetcapacity(periph); 702 703 #if 0 704 /* Do a read capacity */ 705 { 706 struct scsi_read_capacity_data *rcap; 707 union ccb *ccb; 708 709 rcap = kmalloc(sizeof(*rcap), M_SCSIDA, M_INTWAIT | M_ZERO); 710 711 ccb = cam_periph_getccb(periph, /*priority*/1); 712 scsi_read_capacity(&ccb->csio, 713 /*retries*/1, 714 /*cbfncp*/dadone, 715 MSG_SIMPLE_Q_TAG, 716 rcap, 717 SSD_FULL_SIZE, 718 /*timeout*/60000); 719 ccb->ccb_h.ccb_bio = NULL; 720 721 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 722 /*sense_flags*/SF_RETRY_UA | 723 SF_RETRY_SELTO, 724 &softc->device_stats); 725 726 xpt_release_ccb(ccb); 727 728 if (error == 0) { 729 dasetgeom(periph, rcap); 730 } 731 732 kfree(rcap, M_SCSIDA); 733 } 734 #endif 735 736 if (error == 0) { 737 struct ccb_getdev cgd; 738 739 /* Build disk information structure */ 740 bzero(&info, sizeof(info)); 741 info.d_type = DTYPE_SCSI; 742 743 /* 744 * Grab the inquiry data to get the vendor and product names. 745 * Put them in the typename and packname for the label. 746 */ 747 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 748 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 749 xpt_action((union ccb *)&cgd); 750 751 #if 0 752 strncpy(label->d_typename, cgd.inq_data.vendor, 753 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 754 strncpy(label->d_packname, cgd.inq_data.product, 755 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 756 #endif 757 758 /* 759 * Mandatory fields 760 */ 761 info.d_media_blksize = softc->params.secsize; 762 info.d_media_blocks = softc->params.sectors; 763 info.d_media_size = 0; 764 765 /* 766 * Optional fields 767 */ 768 info.d_secpertrack = softc->params.secs_per_track; 769 info.d_nheads = softc->params.heads; 770 info.d_ncylinders = softc->params.cylinders; 771 info.d_secpercyl = softc->params.heads * 772 softc->params.secs_per_track; 773 disk_setdiskinfo(&softc->disk, &info); 774 775 /* 776 * Check to see whether or not the blocksize is set yet. 777 * If it isn't, set it and then clear the blocksize 778 * unavailable flag for the device statistics. 779 */ 780 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 781 softc->device_stats.block_size = softc->params.secsize; 782 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 783 } 784 } 785 786 if (error == 0) { 787 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 788 (softc->quirks & DA_Q_NO_PREVENT) == 0) 789 daprevent(periph, PR_PREVENT); 790 } else { 791 softc->flags &= ~DA_FLAG_OPEN; 792 cam_periph_release(periph); 793 } 794 cam_periph_unhold(periph, 1); 795 return (error); 796 } 797 798 static int 799 daclose(struct dev_close_args *ap) 800 { 801 cdev_t dev = ap->a_head.a_dev; 802 struct cam_periph *periph; 803 struct da_softc *softc; 804 int unit; 805 int error; 806 807 unit = dkunit(dev); 808 periph = cam_extend_get(daperiphs, unit); 809 if (periph == NULL) 810 return (ENXIO); 811 812 cam_periph_lock(periph); 813 if ((error = cam_periph_hold(periph, 0)) != 0) { 814 cam_periph_unlock(periph); 815 cam_periph_release(periph); 816 return (error); 817 } 818 819 softc = (struct da_softc *)periph->softc; 820 821 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 822 union ccb *ccb; 823 824 ccb = cam_periph_getccb(periph, /*priority*/1); 825 826 scsi_synchronize_cache(&ccb->csio, 827 /*retries*/1, 828 /*cbfcnp*/dadone, 829 MSG_SIMPLE_Q_TAG, 830 /*begin_lba*/0,/* Cover the whole disk */ 831 /*lb_count*/0, 832 SSD_FULL_SIZE, 833 5 * 60 * 1000); 834 835 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 836 /*sense_flags*/SF_RETRY_UA, 837 &softc->device_stats); 838 839 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 840 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 841 CAM_SCSI_STATUS_ERROR) { 842 int asc, ascq; 843 int sense_key, error_code; 844 845 scsi_extract_sense(&ccb->csio.sense_data, 846 &error_code, 847 &sense_key, 848 &asc, &ascq); 849 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 850 scsi_sense_print(&ccb->csio); 851 } else { 852 xpt_print(periph->path, "Synchronize cache " 853 "failed, status == 0x%x, scsi status == " 854 "0x%x\n", ccb->csio.ccb_h.status, 855 ccb->csio.scsi_status); 856 } 857 } 858 859 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 860 cam_release_devq(ccb->ccb_h.path, 861 /*relsim_flags*/0, 862 /*reduction*/0, 863 /*timeout*/0, 864 /*getcount_only*/0); 865 866 xpt_release_ccb(ccb); 867 868 } 869 870 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 871 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 872 daprevent(periph, PR_ALLOW); 873 /* 874 * If we've got removeable media, mark the blocksize as 875 * unavailable, since it could change when new media is 876 * inserted. 877 */ 878 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 879 } 880 881 /* 882 * Don't compound any ref counting software bugs with more. 883 */ 884 if (softc->flags & DA_FLAG_OPEN) { 885 softc->flags &= ~DA_FLAG_OPEN; 886 cam_periph_release(periph); 887 } else { 888 xpt_print(periph->path, 889 "daclose() called on an already closed device!\n"); 890 } 891 cam_periph_unhold(periph, 1); 892 return (0); 893 } 894 895 /* 896 * Actually translate the requested transfer into one the physical driver 897 * can understand. The transfer is described by a buf and will include 898 * only one physical transfer. 899 */ 900 static int 901 dastrategy(struct dev_strategy_args *ap) 902 { 903 cdev_t dev = ap->a_head.a_dev; 904 struct bio *bio = ap->a_bio; 905 struct buf *bp = bio->bio_buf; 906 struct cam_periph *periph; 907 struct da_softc *softc; 908 u_int unit; 909 u_int part; 910 911 unit = dkunit(dev); 912 part = dkpart(dev); 913 periph = cam_extend_get(daperiphs, unit); 914 if (periph == NULL) { 915 bp->b_error = ENXIO; 916 goto bad; 917 } 918 softc = (struct da_softc *)periph->softc; 919 920 cam_periph_lock(periph); 921 922 #if 0 923 /* 924 * check it's not too big a transfer for our adapter 925 */ 926 scsi_minphys(bp, &sd_switch); 927 #endif 928 929 /* 930 * Mask interrupts so that the pack cannot be invalidated until 931 * after we are in the queue. Otherwise, we might not properly 932 * clean up one of the buffers. 933 */ 934 935 /* 936 * If the device has been made invalid, error out 937 */ 938 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 939 cam_periph_unlock(periph); 940 bp->b_error = ENXIO; 941 goto bad; 942 } 943 944 /* 945 * Place it in the queue of disk activities for this disk 946 */ 947 bioqdisksort(&softc->bio_queue, bio); 948 949 /* 950 * Schedule ourselves for performing the work. 951 */ 952 xpt_schedule(periph, /* XXX priority */1); 953 cam_periph_unlock(periph); 954 955 return(0); 956 bad: 957 bp->b_flags |= B_ERROR; 958 959 /* 960 * Correctly set the buf to indicate a completed xfer 961 */ 962 bp->b_resid = bp->b_bcount; 963 biodone(bio); 964 return(0); 965 } 966 967 static int 968 dadump(struct dev_dump_args *ap) 969 { 970 cdev_t dev = ap->a_head.a_dev; 971 struct cam_periph *periph; 972 struct da_softc *softc; 973 u_int unit; 974 long blkcnt; 975 vm_paddr_t addr; 976 struct ccb_scsiio csio; 977 int dumppages = MAXDUMPPGS; 978 int i; 979 980 /* toss any characters present prior to dump */ 981 while (cncheckc() != -1) 982 ; 983 984 unit = dkunit(dev); 985 periph = cam_extend_get(daperiphs, unit); 986 if (periph == NULL) { 987 return (ENXIO); 988 } 989 softc = (struct da_softc *)periph->softc; 990 991 cam_periph_lock(periph); 992 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 993 cam_periph_unlock(periph); 994 return (ENXIO); 995 } 996 997 addr = 0; /* starting address */ 998 blkcnt = howmany(PAGE_SIZE, ap->a_secsize); 999 1000 while (ap->a_count > 0) { 1001 caddr_t va = NULL; 1002 1003 if ((ap->a_count / blkcnt) < dumppages) 1004 dumppages = ap->a_count / blkcnt; 1005 1006 for (i = 0; i < dumppages; ++i) { 1007 vm_paddr_t a = addr + (i * PAGE_SIZE); 1008 if (is_physical_memory(a)) 1009 va = pmap_kenter_temporary(trunc_page(a), i); 1010 else 1011 va = pmap_kenter_temporary(trunc_page(0), i); 1012 } 1013 1014 periph->flags |= CAM_PERIPH_POLLED; 1015 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1016 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1017 scsi_read_write(&csio, 1018 /*retries*/1, 1019 dadone, 1020 MSG_ORDERED_Q_TAG, 1021 /*read*/FALSE, 1022 /*byte2*/0, 1023 /*minimum_cmd_size*/ softc->minimum_cmd_size, 1024 ap->a_blkno, 1025 blkcnt * dumppages, 1026 /*data_ptr*/(u_int8_t *) va, 1027 /*dxfer_len*/blkcnt * ap->a_secsize * dumppages, 1028 /*sense_len*/SSD_FULL_SIZE, 1029 DA_DEFAULT_TIMEOUT * 1000); 1030 xpt_polled_action((union ccb *)&csio); 1031 1032 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1033 kprintf("Aborting dump due to I/O error.\n"); 1034 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1035 CAM_SCSI_STATUS_ERROR) 1036 scsi_sense_print(&csio); 1037 else 1038 kprintf("status == 0x%x, scsi status == 0x%x\n", 1039 csio.ccb_h.status, csio.scsi_status); 1040 periph->flags |= CAM_PERIPH_POLLED; 1041 return(EIO); 1042 } 1043 1044 if (dumpstatus(addr, (off_t)ap->a_count * softc->params.secsize) < 0) 1045 return (EINTR); 1046 1047 /* update block count */ 1048 ap->a_count -= blkcnt * dumppages; 1049 ap->a_blkno += blkcnt * dumppages; 1050 addr += PAGE_SIZE * dumppages; 1051 } 1052 1053 /* 1054 * Sync the disk cache contents to the physical media. 1055 */ 1056 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 1057 1058 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1059 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1060 scsi_synchronize_cache(&csio, 1061 /*retries*/1, 1062 /*cbfcnp*/dadone, 1063 MSG_SIMPLE_Q_TAG, 1064 /*begin_lba*/0,/* Cover the whole disk */ 1065 /*lb_count*/0, 1066 SSD_FULL_SIZE, 1067 5 * 60 * 1000); 1068 xpt_polled_action((union ccb *)&csio); 1069 1070 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1071 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1072 CAM_SCSI_STATUS_ERROR) { 1073 int asc, ascq; 1074 int sense_key, error_code; 1075 1076 scsi_extract_sense(&csio.sense_data, 1077 &error_code, 1078 &sense_key, 1079 &asc, &ascq); 1080 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1081 scsi_sense_print(&csio); 1082 } else { 1083 xpt_print(periph->path, "Synchronize cache " 1084 "failed, status == 0x%x, scsi status == " 1085 "0x%x\n", csio.ccb_h.status, 1086 csio.scsi_status); 1087 } 1088 } 1089 } 1090 periph->flags &= ~CAM_PERIPH_POLLED; 1091 cam_periph_unlock(periph); 1092 return (0); 1093 } 1094 1095 static void 1096 dainit(void) 1097 { 1098 cam_status status; 1099 1100 /* 1101 * Create our extend array for storing the devices we attach to. 1102 */ 1103 daperiphs = cam_extend_new(); 1104 if (daperiphs == NULL) { 1105 kprintf("da: Failed to alloc extend array!\n"); 1106 return; 1107 } 1108 1109 callout_init(&dasendorderedtag_ch); 1110 1111 /* 1112 * Install a global async callback. This callback will 1113 * receive async callbacks like "new device found". 1114 */ 1115 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 1116 1117 if (status != CAM_REQ_CMP) { 1118 kprintf("da: Failed to attach master async callback " 1119 "due to status 0x%x!\n", status); 1120 } else if (da_send_ordered) { 1121 1122 /* Register our shutdown event handler */ 1123 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1124 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1125 kprintf("dainit: shutdown event registration failed!\n"); 1126 } 1127 } 1128 1129 static void 1130 daoninvalidate(struct cam_periph *periph) 1131 { 1132 struct da_softc *softc; 1133 struct bio *q_bio; 1134 struct buf *q_bp; 1135 1136 softc = (struct da_softc *)periph->softc; 1137 1138 /* 1139 * De-register any async callbacks. 1140 */ 1141 xpt_register_async(0, daasync, periph, periph->path); 1142 1143 softc->flags |= DA_FLAG_PACK_INVALID; 1144 1145 /* 1146 * Return all queued I/O with ENXIO. 1147 * XXX Handle any transactions queued to the card 1148 * with XPT_ABORT_CCB. 1149 */ 1150 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ 1151 bioq_remove(&softc->bio_queue, q_bio); 1152 q_bp = q_bio->bio_buf; 1153 q_bp->b_resid = q_bp->b_bcount; 1154 q_bp->b_error = ENXIO; 1155 q_bp->b_flags |= B_ERROR; 1156 biodone(q_bio); 1157 } 1158 xpt_print(periph->path, "lost device\n"); 1159 } 1160 1161 static void 1162 dacleanup(struct cam_periph *periph) 1163 { 1164 struct da_softc *softc; 1165 1166 softc = (struct da_softc *)periph->softc; 1167 1168 devstat_remove_entry(&softc->device_stats); 1169 cam_extend_release(daperiphs, periph->unit_number); 1170 xpt_print(periph->path, "removing device entry\n"); 1171 /* 1172 * If we can't free the sysctl tree, oh well... 1173 */ 1174 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1175 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1176 xpt_print(periph->path, "can't remove sysctl context\n"); 1177 } 1178 periph->softc = NULL; 1179 if (softc->disk.d_rawdev) { 1180 cam_periph_unlock(periph); 1181 disk_destroy(&softc->disk); 1182 cam_periph_lock(periph); 1183 } 1184 1185 callout_stop(&softc->sendordered_c); 1186 kfree(softc, M_DEVBUF); 1187 } 1188 1189 static void 1190 daasync(void *callback_arg, u_int32_t code, 1191 struct cam_path *path, void *arg) 1192 { 1193 struct cam_periph *periph; 1194 1195 periph = (struct cam_periph *)callback_arg; 1196 switch (code) { 1197 case AC_FOUND_DEVICE: 1198 { 1199 struct ccb_getdev *cgd; 1200 struct cam_sim *sim; 1201 cam_status status; 1202 1203 cgd = (struct ccb_getdev *)arg; 1204 if (cgd == NULL) 1205 break; 1206 1207 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1208 && SID_TYPE(&cgd->inq_data) != T_RBC 1209 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1210 break; 1211 1212 /* 1213 * Allocate a peripheral instance for 1214 * this device and start the probe 1215 * process. 1216 */ 1217 sim = xpt_path_sim(cgd->ccb_h.path); 1218 status = cam_periph_alloc(daregister, daoninvalidate, 1219 dacleanup, dastart, 1220 "da", CAM_PERIPH_BIO, 1221 cgd->ccb_h.path, daasync, 1222 AC_FOUND_DEVICE, cgd); 1223 1224 if (status != CAM_REQ_CMP 1225 && status != CAM_REQ_INPROG) 1226 kprintf("daasync: Unable to attach to new device " 1227 "due to status 0x%x\n", status); 1228 break; 1229 } 1230 case AC_SENT_BDR: 1231 case AC_BUS_RESET: 1232 { 1233 struct da_softc *softc; 1234 struct ccb_hdr *ccbh; 1235 1236 softc = (struct da_softc *)periph->softc; 1237 /* 1238 * Don't fail on the expected unit attention 1239 * that will occur. 1240 */ 1241 softc->flags |= DA_FLAG_RETRY_UA; 1242 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1243 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1244 /* FALLTHROUGH*/ 1245 } 1246 default: 1247 cam_periph_async(periph, code, path, arg); 1248 break; 1249 } 1250 } 1251 1252 static void 1253 dasysctlinit(void *context, int pending) 1254 { 1255 struct cam_periph *periph; 1256 struct da_softc *softc; 1257 char tmpstr[80], tmpstr2[80]; 1258 1259 periph = (struct cam_periph *)context; 1260 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1261 return; 1262 1263 softc = (struct da_softc *)periph->softc; 1264 ksnprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1265 ksnprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1266 1267 sysctl_ctx_init(&softc->sysctl_ctx); 1268 softc->flags |= DA_FLAG_SCTX_INIT; 1269 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1270 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1271 CTLFLAG_RD, 0, tmpstr); 1272 if (softc->sysctl_tree == NULL) { 1273 kprintf("dasysctlinit: unable to allocate sysctl tree\n"); 1274 cam_periph_release(periph); 1275 return; 1276 } 1277 1278 /* 1279 * Now register the sysctl handler, so the user can the value on 1280 * the fly. 1281 */ 1282 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1283 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1284 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1285 "Minimum CDB size"); 1286 1287 cam_periph_release(periph); 1288 } 1289 1290 static int 1291 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1292 { 1293 int error, value; 1294 1295 value = *(int *)arg1; 1296 1297 error = sysctl_handle_int(oidp, &value, 0, req); 1298 1299 if ((error != 0) 1300 || (req->newptr == NULL)) 1301 return (error); 1302 1303 /* 1304 * Acceptable values here are 6, 10 or 12, or 16. 1305 */ 1306 if (value < 6) 1307 value = 6; 1308 else if ((value > 6) 1309 && (value <= 10)) 1310 value = 10; 1311 else if ((value > 10) 1312 && (value <= 12)) 1313 value = 12; 1314 else if (value > 12) 1315 value = 16; 1316 1317 *(int *)arg1 = value; 1318 1319 return (0); 1320 } 1321 1322 static cam_status 1323 daregister(struct cam_periph *periph, void *arg) 1324 { 1325 struct da_softc *softc; 1326 struct ccb_pathinq cpi; 1327 struct ccb_getdev *cgd; 1328 char tmpstr[80]; 1329 caddr_t match; 1330 1331 cgd = (struct ccb_getdev *)arg; 1332 if (periph == NULL) { 1333 kprintf("daregister: periph was NULL!!\n"); 1334 return(CAM_REQ_CMP_ERR); 1335 } 1336 1337 if (cgd == NULL) { 1338 kprintf("daregister: no getdev CCB, can't register device\n"); 1339 return(CAM_REQ_CMP_ERR); 1340 } 1341 1342 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1343 LIST_INIT(&softc->pending_ccbs); 1344 softc->state = DA_STATE_PROBE; 1345 bioq_init(&softc->bio_queue); 1346 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1347 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1348 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1349 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1350 1351 periph->softc = softc; 1352 1353 cam_extend_set(daperiphs, periph->unit_number, periph); 1354 1355 /* 1356 * See if this device has any quirks. 1357 */ 1358 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1359 (caddr_t)da_quirk_table, 1360 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1361 sizeof(*da_quirk_table), scsi_inquiry_match); 1362 1363 if (match != NULL) 1364 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1365 else 1366 softc->quirks = DA_Q_NONE; 1367 1368 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1369 1370 /* Check if the SIM does not want 6 byte commands */ 1371 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1372 cpi.ccb_h.func_code = XPT_PATH_INQ; 1373 xpt_action((union ccb *)&cpi); 1374 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1375 softc->quirks |= DA_Q_NO_6_BYTE; 1376 1377 /* 1378 * RBC devices don't have to support READ(6), only READ(10). 1379 */ 1380 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1381 softc->minimum_cmd_size = 10; 1382 else 1383 softc->minimum_cmd_size = 6; 1384 1385 /* 1386 * Load the user's default, if any. 1387 */ 1388 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1389 periph->unit_number); 1390 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1391 1392 /* 1393 * 6, 10, 12, and 16 are the currently permissible values. 1394 */ 1395 if (softc->minimum_cmd_size < 6) 1396 softc->minimum_cmd_size = 6; 1397 else if ((softc->minimum_cmd_size > 6) 1398 && (softc->minimum_cmd_size <= 10)) 1399 softc->minimum_cmd_size = 10; 1400 else if ((softc->minimum_cmd_size > 10) 1401 && (softc->minimum_cmd_size <= 12)) 1402 softc->minimum_cmd_size = 12; 1403 else if (softc->minimum_cmd_size > 12) 1404 softc->minimum_cmd_size = 16; 1405 1406 /* 1407 * The DA driver supports a blocksize, but 1408 * we don't know the blocksize until we do 1409 * a read capacity. So, set a flag to 1410 * indicate that the blocksize is 1411 * unavailable right now. We'll clear the 1412 * flag as soon as we've done a read capacity. 1413 */ 1414 devstat_add_entry(&softc->device_stats, "da", 1415 periph->unit_number, 0, 1416 DEVSTAT_BS_UNAVAILABLE, 1417 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1418 DEVSTAT_PRIORITY_DISK); 1419 1420 /* 1421 * Register this media as a disk 1422 */ 1423 1424 CAM_SIM_UNLOCK(periph->sim); 1425 disk_create(periph->unit_number, &softc->disk, &da_ops); 1426 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 1427 CAM_SIM_LOCK(periph->sim); 1428 1429 /* 1430 * Add async callbacks for bus reset and 1431 * bus device reset calls. I don't bother 1432 * checking if this fails as, in most cases, 1433 * the system will function just fine without 1434 * them and the only alternative would be to 1435 * not attach the device on failure. 1436 */ 1437 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 1438 daasync, periph, periph->path); 1439 1440 /* 1441 * Take an exclusive refcount on the periph while dastart is called 1442 * to finish the probe. The reference will be dropped in dadone at 1443 * the end of probe. 1444 */ 1445 cam_periph_hold(periph, 0); 1446 xpt_schedule(periph, /*priority*/5); 1447 1448 /* 1449 * Schedule a periodic event to occasionally send an 1450 * ordered tag to a device. 1451 */ 1452 callout_init(&softc->sendordered_c); 1453 callout_reset(&softc->sendordered_c, 1454 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1455 dasendorderedtag, softc); 1456 1457 return(CAM_REQ_CMP); 1458 } 1459 1460 static void 1461 dastart(struct cam_periph *periph, union ccb *start_ccb) 1462 { 1463 struct da_softc *softc; 1464 1465 softc = (struct da_softc *)periph->softc; 1466 1467 switch (softc->state) { 1468 case DA_STATE_NORMAL: 1469 { 1470 /* Pull a buffer from the queue and get going on it */ 1471 struct bio *bio; 1472 struct buf *bp; 1473 u_int8_t tag_code; 1474 1475 /* 1476 * See if there is a buf with work for us to do.. 1477 */ 1478 bio = bioq_first(&softc->bio_queue); 1479 if (periph->immediate_priority <= periph->pinfo.priority) { 1480 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1481 ("queuing for immediate ccb\n")); 1482 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1483 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1484 periph_links.sle); 1485 periph->immediate_priority = CAM_PRIORITY_NONE; 1486 wakeup(&periph->ccb_list); 1487 if (bio != NULL) { 1488 /* 1489 * Have more work to do, so ensure we stay 1490 * scheduled 1491 */ 1492 xpt_schedule(periph, /* XXX priority */1); 1493 } 1494 break; 1495 } 1496 if (bio == NULL) { 1497 xpt_release_ccb(start_ccb); 1498 break; 1499 } 1500 1501 /* 1502 * We can queue new work. 1503 */ 1504 bioq_remove(&softc->bio_queue, bio); 1505 bp = bio->bio_buf; 1506 1507 devstat_start_transaction(&softc->device_stats); 1508 1509 if ((bp->b_flags & B_ORDERED) != 0 || 1510 (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1511 softc->flags &= ~DA_FLAG_NEED_OTAG; 1512 softc->ordered_tag_count++; 1513 tag_code = MSG_ORDERED_Q_TAG; 1514 } else { 1515 tag_code = MSG_SIMPLE_Q_TAG; 1516 } 1517 1518 switch(bp->b_cmd) { 1519 case BUF_CMD_READ: 1520 case BUF_CMD_WRITE: 1521 /* 1522 * Block read/write op 1523 */ 1524 KKASSERT(bio->bio_offset % softc->params.secsize == 0); 1525 1526 scsi_read_write( 1527 &start_ccb->csio, 1528 da_retry_count, /* retries */ 1529 dadone, 1530 tag_code, 1531 (bp->b_cmd == BUF_CMD_READ), 1532 0, /* byte2 */ 1533 softc->minimum_cmd_size, 1534 bio->bio_offset / softc->params.secsize, 1535 bp->b_bcount / softc->params.secsize, 1536 bp->b_data, 1537 bp->b_bcount, 1538 SSD_FULL_SIZE, /* sense_len */ 1539 da_default_timeout * 1000 1540 ); 1541 break; 1542 case BUF_CMD_FLUSH: 1543 scsi_synchronize_cache( 1544 &start_ccb->csio, 1545 1, /* retries */ 1546 dadone, /* cbfcnp */ 1547 MSG_SIMPLE_Q_TAG, 1548 0, /* lba */ 1549 0, /* count (whole disk) */ 1550 SSD_FULL_SIZE, 1551 da_default_timeout*1000 /* timeout */ 1552 ); 1553 break; 1554 default: 1555 panic("dastart: unrecognized bio cmd %d", bp->b_cmd); 1556 break; /* NOT REACHED */ 1557 } 1558 1559 /* 1560 * Block out any asyncronous callbacks 1561 * while we touch the pending ccb list. 1562 */ 1563 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1564 LIST_INSERT_HEAD(&softc->pending_ccbs, 1565 &start_ccb->ccb_h, periph_links.le); 1566 softc->outstanding_cmds++; 1567 1568 /* We expect a unit attention from this device */ 1569 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1570 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1571 softc->flags &= ~DA_FLAG_RETRY_UA; 1572 } 1573 1574 start_ccb->ccb_h.ccb_bio = bio; 1575 xpt_action(start_ccb); 1576 1577 /* 1578 * Be sure we stay scheduled if we have more work to do. 1579 */ 1580 bio = bioq_first(&softc->bio_queue); 1581 if (bio != NULL) 1582 xpt_schedule(periph, 1); 1583 break; 1584 } 1585 case DA_STATE_PROBE: 1586 { 1587 struct ccb_scsiio *csio; 1588 struct scsi_read_capacity_data *rcap; 1589 1590 rcap = kmalloc(sizeof(*rcap), M_SCSIDA, M_INTWAIT | M_ZERO); 1591 csio = &start_ccb->csio; 1592 scsi_read_capacity(csio, 1593 /*retries*/4, 1594 dadone, 1595 MSG_SIMPLE_Q_TAG, 1596 rcap, 1597 SSD_FULL_SIZE, 1598 /*timeout*/5000); 1599 start_ccb->ccb_h.ccb_bio = NULL; 1600 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1601 xpt_action(start_ccb); 1602 break; 1603 } 1604 case DA_STATE_PROBE2: 1605 { 1606 struct ccb_scsiio *csio; 1607 struct scsi_read_capacity_data_long *rcaplong; 1608 1609 rcaplong = (struct scsi_read_capacity_data_long *) 1610 kmalloc(sizeof(*rcaplong), M_SCSIDA, M_INTWAIT | M_ZERO); 1611 if (rcaplong == NULL) { 1612 kprintf("dastart: Couldn't allocate read_capacity\n"); 1613 /* da_free_periph??? */ 1614 break; 1615 } 1616 csio = &start_ccb->csio; 1617 scsi_read_capacity_16(csio, 1618 /*retries*/ 4, 1619 /*cbfcnp*/ dadone, 1620 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1621 /*lba*/ 0, 1622 /*reladr*/ 0, 1623 /*pmi*/ 0, 1624 rcaplong, 1625 /*sense_len*/ SSD_FULL_SIZE, 1626 /*timeout*/ 60000); 1627 start_ccb->ccb_h.ccb_bio = NULL; 1628 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1629 xpt_action(start_ccb); 1630 break; 1631 } 1632 } 1633 } 1634 1635 static int 1636 cmd6workaround(union ccb *ccb) 1637 { 1638 struct scsi_rw_6 cmd6; 1639 struct scsi_rw_10 *cmd10; 1640 struct da_softc *softc; 1641 u_int8_t *cdb; 1642 int frozen; 1643 1644 cdb = ccb->csio.cdb_io.cdb_bytes; 1645 1646 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1647 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1648 (*cdb != READ_6 && *cdb != WRITE_6)) 1649 return 0; 1650 1651 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1652 "increasing minimum_cmd_size to 10.\n"); 1653 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1654 softc->minimum_cmd_size = 10; 1655 1656 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1657 cmd10 = (struct scsi_rw_10 *)cdb; 1658 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1659 cmd10->byte2 = 0; 1660 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1661 cmd10->reserved = 0; 1662 scsi_ulto2b(cmd6.length, cmd10->length); 1663 cmd10->control = cmd6.control; 1664 ccb->csio.cdb_len = sizeof(*cmd10); 1665 1666 /* Requeue request, unfreezing queue if necessary */ 1667 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1668 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1669 xpt_action(ccb); 1670 if (frozen) { 1671 cam_release_devq(ccb->ccb_h.path, 1672 /*relsim_flags*/0, 1673 /*reduction*/0, 1674 /*timeout*/0, 1675 /*getcount_only*/0); 1676 } 1677 return (ERESTART); 1678 } 1679 1680 static void 1681 dadone(struct cam_periph *periph, union ccb *done_ccb) 1682 { 1683 struct da_softc *softc; 1684 struct ccb_scsiio *csio; 1685 1686 softc = (struct da_softc *)periph->softc; 1687 csio = &done_ccb->csio; 1688 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1689 case DA_CCB_BUFFER_IO: 1690 { 1691 struct buf *bp; 1692 struct bio *bio; 1693 1694 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1695 bp = bio->bio_buf; 1696 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1697 int error; 1698 int sf; 1699 1700 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1701 sf = SF_RETRY_UA; 1702 else 1703 sf = 0; 1704 1705 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1706 if (error == ERESTART) { 1707 /* 1708 * A retry was scheuled, so 1709 * just return. 1710 */ 1711 return; 1712 } 1713 if (error != 0) { 1714 struct bio *q_bio; 1715 struct buf *q_bp; 1716 1717 if (error == ENXIO) { 1718 /* 1719 * Catastrophic error. Mark our pack as 1720 * invalid. 1721 */ 1722 /* 1723 * XXX See if this is really a media 1724 * XXX change first? 1725 */ 1726 xpt_print(periph->path, 1727 "Invalidating pack\n"); 1728 softc->flags |= DA_FLAG_PACK_INVALID; 1729 } 1730 1731 /* 1732 * return all queued I/O with EIO, so that 1733 * the client can retry these I/Os in the 1734 * proper order should it attempt to recover. 1735 */ 1736 while ((q_bio = bioq_first(&softc->bio_queue)) 1737 != NULL) { 1738 bioq_remove(&softc->bio_queue, q_bio); 1739 q_bp = q_bio->bio_buf; 1740 q_bp->b_resid = q_bp->b_bcount; 1741 q_bp->b_error = EIO; 1742 q_bp->b_flags |= B_ERROR; 1743 biodone(q_bio); 1744 } 1745 bp->b_error = error; 1746 bp->b_resid = bp->b_bcount; 1747 bp->b_flags |= B_ERROR; 1748 } else { 1749 bp->b_resid = csio->resid; 1750 bp->b_error = 0; 1751 if (bp->b_resid != 0) 1752 bp->b_flags |= B_ERROR; 1753 } 1754 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1755 cam_release_devq(done_ccb->ccb_h.path, 1756 /*relsim_flags*/0, 1757 /*reduction*/0, 1758 /*timeout*/0, 1759 /*getcount_only*/0); 1760 } else { 1761 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1762 panic("REQ_CMP with QFRZN"); 1763 bp->b_resid = csio->resid; 1764 if (csio->resid > 0) 1765 bp->b_flags |= B_ERROR; 1766 } 1767 1768 /* 1769 * Block out any asyncronous callbacks 1770 * while we touch the pending ccb list. 1771 */ 1772 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1773 softc->outstanding_cmds--; 1774 if (softc->outstanding_cmds == 0) 1775 softc->flags |= DA_FLAG_WENT_IDLE; 1776 1777 devstat_end_transaction_buf(&softc->device_stats, bp); 1778 biodone(bio); 1779 break; 1780 } 1781 case DA_CCB_PROBE: 1782 case DA_CCB_PROBE2: 1783 { 1784 struct scsi_read_capacity_data *rdcap; 1785 struct scsi_read_capacity_data_long *rcaplong; 1786 char announce_buf[80]; 1787 1788 rdcap = NULL; 1789 rcaplong = NULL; 1790 if (softc->state == DA_STATE_PROBE) 1791 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1792 else 1793 rcaplong = (struct scsi_read_capacity_data_long *) 1794 csio->data_ptr; 1795 1796 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1797 struct disk_params *dp; 1798 uint32_t block_size; 1799 uint64_t maxsector; 1800 1801 if (softc->state == DA_STATE_PROBE) { 1802 block_size = scsi_4btoul(rdcap->length); 1803 maxsector = scsi_4btoul(rdcap->addr); 1804 1805 /* 1806 * According to SBC-2, if the standard 10 1807 * byte READ CAPACITY command returns 2^32, 1808 * we should issue the 16 byte version of 1809 * the command, since the device in question 1810 * has more sectors than can be represented 1811 * with the short version of the command. 1812 */ 1813 if (maxsector == 0xffffffff) { 1814 softc->state = DA_STATE_PROBE2; 1815 kfree(rdcap, M_SCSIDA); 1816 xpt_release_ccb(done_ccb); 1817 xpt_schedule(periph, /*priority*/5); 1818 return; 1819 } 1820 } else { 1821 block_size = scsi_4btoul(rcaplong->length); 1822 maxsector = scsi_8btou64(rcaplong->addr); 1823 } 1824 dasetgeom(periph, block_size, maxsector); 1825 dp = &softc->params; 1826 ksnprintf(announce_buf, sizeof(announce_buf), 1827 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1828 (uintmax_t) (((uintmax_t)dp->secsize * 1829 dp->sectors) / (1024*1024)), 1830 (uintmax_t)dp->sectors, 1831 dp->secsize, dp->heads, dp->secs_per_track, 1832 dp->cylinders); 1833 } else { 1834 int error; 1835 1836 announce_buf[0] = '\0'; 1837 1838 /* 1839 * Retry any UNIT ATTENTION type errors. They 1840 * are expected at boot. 1841 */ 1842 error = daerror(done_ccb, CAM_RETRY_SELTO, 1843 SF_RETRY_UA|SF_NO_PRINT); 1844 if (error == ERESTART) { 1845 /* 1846 * A retry was scheuled, so 1847 * just return. 1848 */ 1849 return; 1850 } else if (error != 0) { 1851 struct scsi_sense_data *sense; 1852 int asc, ascq; 1853 int sense_key, error_code; 1854 int have_sense; 1855 cam_status status; 1856 struct ccb_getdev cgd; 1857 1858 /* Don't wedge this device's queue */ 1859 status = done_ccb->ccb_h.status; 1860 if ((status & CAM_DEV_QFRZN) != 0) 1861 cam_release_devq(done_ccb->ccb_h.path, 1862 /*relsim_flags*/0, 1863 /*reduction*/0, 1864 /*timeout*/0, 1865 /*getcount_only*/0); 1866 1867 1868 xpt_setup_ccb(&cgd.ccb_h, 1869 done_ccb->ccb_h.path, 1870 /* priority */ 1); 1871 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1872 xpt_action((union ccb *)&cgd); 1873 1874 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1875 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1876 || ((status & CAM_AUTOSNS_VALID) == 0)) 1877 have_sense = FALSE; 1878 else 1879 have_sense = TRUE; 1880 1881 if (have_sense) { 1882 sense = &csio->sense_data; 1883 scsi_extract_sense(sense, &error_code, 1884 &sense_key, 1885 &asc, &ascq); 1886 } 1887 /* 1888 * Attach to anything that claims to be a 1889 * direct access or optical disk device, 1890 * as long as it doesn't return a "Logical 1891 * unit not supported" (0x25) error. 1892 */ 1893 if ((have_sense) && (asc != 0x25) 1894 && (error_code == SSD_CURRENT_ERROR)) { 1895 const char *sense_key_desc; 1896 const char *asc_desc; 1897 1898 scsi_sense_desc(sense_key, asc, ascq, 1899 &cgd.inq_data, 1900 &sense_key_desc, 1901 &asc_desc); 1902 ksnprintf(announce_buf, 1903 sizeof(announce_buf), 1904 "Attempt to query device " 1905 "size failed: %s, %s", 1906 sense_key_desc, 1907 asc_desc); 1908 } else { 1909 if (have_sense) 1910 scsi_sense_print( 1911 &done_ccb->csio); 1912 else { 1913 xpt_print(periph->path, 1914 "got CAM status %#x\n", 1915 done_ccb->ccb_h.status); 1916 } 1917 1918 xpt_print(periph->path, "fatal error, " 1919 "failed to attach to device\n"); 1920 1921 /* 1922 * Free up resources. 1923 */ 1924 cam_periph_invalidate(periph); 1925 } 1926 } 1927 } 1928 kfree(csio->data_ptr, M_SCSIDA); 1929 if (announce_buf[0] != '\0') { 1930 xpt_announce_periph(periph, announce_buf); 1931 /* 1932 * Create our sysctl variables, now that we know 1933 * we have successfully attached. 1934 */ 1935 taskqueue_enqueue(taskqueue_thread[mycpuid], 1936 &softc->sysctl_task); 1937 } 1938 softc->state = DA_STATE_NORMAL; 1939 /* 1940 * Since our peripheral may be invalidated by an error 1941 * above or an external event, we must release our CCB 1942 * before releasing the probe lock on the peripheral. 1943 * The peripheral will only go away once the last lock 1944 * is removed, and we need it around for the CCB release 1945 * operation. 1946 */ 1947 xpt_release_ccb(done_ccb); 1948 cam_periph_unhold(periph, 0); 1949 return; 1950 } 1951 case DA_CCB_WAITING: 1952 { 1953 /* Caller will release the CCB */ 1954 wakeup(&done_ccb->ccb_h.cbfcnp); 1955 return; 1956 } 1957 case DA_CCB_DUMP: 1958 /* No-op. We're polling */ 1959 return; 1960 default: 1961 break; 1962 } 1963 xpt_release_ccb(done_ccb); 1964 } 1965 1966 static int 1967 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1968 { 1969 struct da_softc *softc; 1970 struct cam_periph *periph; 1971 int error; 1972 1973 periph = xpt_path_periph(ccb->ccb_h.path); 1974 softc = (struct da_softc *)periph->softc; 1975 1976 /* 1977 * Automatically detect devices that do not support 1978 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1979 */ 1980 error = 0; 1981 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1982 error = cmd6workaround(ccb); 1983 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1984 CAM_SCSI_STATUS_ERROR) 1985 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1986 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1987 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1988 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1989 int sense_key, error_code, asc, ascq; 1990 1991 scsi_extract_sense(&ccb->csio.sense_data, 1992 &error_code, &sense_key, &asc, &ascq); 1993 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1994 error = cmd6workaround(ccb); 1995 } 1996 if (error == ERESTART) 1997 return (ERESTART); 1998 1999 /* 2000 * XXX 2001 * Until we have a better way of doing pack validation, 2002 * don't treat UAs as errors. 2003 */ 2004 sense_flags |= SF_RETRY_UA; 2005 return(cam_periph_error(ccb, cam_flags, sense_flags, 2006 &softc->saved_ccb)); 2007 } 2008 2009 static void 2010 daprevent(struct cam_periph *periph, int action) 2011 { 2012 struct da_softc *softc; 2013 union ccb *ccb; 2014 int error; 2015 2016 softc = (struct da_softc *)periph->softc; 2017 2018 if (((action == PR_ALLOW) 2019 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 2020 || ((action == PR_PREVENT) 2021 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 2022 return; 2023 } 2024 2025 ccb = cam_periph_getccb(periph, /*priority*/1); 2026 2027 scsi_prevent(&ccb->csio, 2028 /*retries*/1, 2029 /*cbcfp*/dadone, 2030 MSG_SIMPLE_Q_TAG, 2031 action, 2032 SSD_FULL_SIZE, 2033 5000); 2034 2035 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 2036 SF_RETRY_UA, &softc->device_stats); 2037 2038 if (error == 0) { 2039 if (action == PR_ALLOW) 2040 softc->flags &= ~DA_FLAG_PACK_LOCKED; 2041 else 2042 softc->flags |= DA_FLAG_PACK_LOCKED; 2043 } 2044 2045 xpt_release_ccb(ccb); 2046 } 2047 2048 static int 2049 dagetcapacity(struct cam_periph *periph) 2050 { 2051 struct da_softc *softc; 2052 union ccb *ccb; 2053 struct scsi_read_capacity_data *rcap; 2054 struct scsi_read_capacity_data_long *rcaplong; 2055 uint32_t block_len; 2056 uint64_t maxsector; 2057 int error; 2058 2059 softc = (struct da_softc *)periph->softc; 2060 block_len = 0; 2061 maxsector = 0; 2062 error = 0; 2063 2064 /* Do a read capacity */ 2065 rcap = (struct scsi_read_capacity_data *)kmalloc(sizeof(*rcaplong), 2066 M_SCSIDA, M_INTWAIT); 2067 2068 ccb = cam_periph_getccb(periph, /*priority*/1); 2069 scsi_read_capacity(&ccb->csio, 2070 /*retries*/4, 2071 /*cbfncp*/dadone, 2072 MSG_SIMPLE_Q_TAG, 2073 rcap, 2074 SSD_FULL_SIZE, 2075 /*timeout*/60000); 2076 ccb->ccb_h.ccb_bio = NULL; 2077 2078 error = cam_periph_runccb(ccb, daerror, 2079 /*cam_flags*/CAM_RETRY_SELTO, 2080 /*sense_flags*/SF_RETRY_UA, 2081 &softc->device_stats); 2082 2083 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2084 cam_release_devq(ccb->ccb_h.path, 2085 /*relsim_flags*/0, 2086 /*reduction*/0, 2087 /*timeout*/0, 2088 /*getcount_only*/0); 2089 2090 if (error == 0) { 2091 block_len = scsi_4btoul(rcap->length); 2092 maxsector = scsi_4btoul(rcap->addr); 2093 2094 if (maxsector != 0xffffffff) 2095 goto done; 2096 } else 2097 goto done; 2098 2099 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 2100 2101 scsi_read_capacity_16(&ccb->csio, 2102 /*retries*/ 4, 2103 /*cbfcnp*/ dadone, 2104 /*tag_action*/ MSG_SIMPLE_Q_TAG, 2105 /*lba*/ 0, 2106 /*reladr*/ 0, 2107 /*pmi*/ 0, 2108 rcaplong, 2109 /*sense_len*/ SSD_FULL_SIZE, 2110 /*timeout*/ 60000); 2111 ccb->ccb_h.ccb_bio = NULL; 2112 2113 error = cam_periph_runccb(ccb, daerror, 2114 /*cam_flags*/CAM_RETRY_SELTO, 2115 /*sense_flags*/SF_RETRY_UA, 2116 &softc->device_stats); 2117 2118 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2119 cam_release_devq(ccb->ccb_h.path, 2120 /*relsim_flags*/0, 2121 /*reduction*/0, 2122 /*timeout*/0, 2123 /*getcount_only*/0); 2124 2125 if (error == 0) { 2126 block_len = scsi_4btoul(rcaplong->length); 2127 maxsector = scsi_8btou64(rcaplong->addr); 2128 } 2129 2130 done: 2131 2132 if (error == 0) 2133 dasetgeom(periph, block_len, maxsector); 2134 2135 xpt_release_ccb(ccb); 2136 2137 kfree(rcap, M_SCSIDA); 2138 2139 return (error); 2140 } 2141 2142 static void 2143 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2144 { 2145 struct ccb_calc_geometry ccg; 2146 struct da_softc *softc; 2147 struct disk_params *dp; 2148 2149 softc = (struct da_softc *)periph->softc; 2150 2151 dp = &softc->params; 2152 dp->secsize = block_len; 2153 dp->sectors = maxsector + 1; 2154 /* 2155 * Have the controller provide us with a geometry 2156 * for this disk. The only time the geometry 2157 * matters is when we boot and the controller 2158 * is the only one knowledgeable enough to come 2159 * up with something that will make this a bootable 2160 * device. 2161 */ 2162 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 2163 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2164 ccg.block_size = dp->secsize; 2165 ccg.volume_size = dp->sectors; 2166 ccg.heads = 0; 2167 ccg.secs_per_track = 0; 2168 ccg.cylinders = 0; 2169 xpt_action((union ccb*)&ccg); 2170 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2171 /* 2172 * We don't know what went wrong here- but just pick 2173 * a geometry so we don't have nasty things like divide 2174 * by zero. 2175 */ 2176 dp->heads = 255; 2177 dp->secs_per_track = 255; 2178 dp->cylinders = dp->sectors / (255 * 255); 2179 if (dp->cylinders == 0) { 2180 dp->cylinders = 1; 2181 } 2182 } else { 2183 dp->heads = ccg.heads; 2184 dp->secs_per_track = ccg.secs_per_track; 2185 dp->cylinders = ccg.cylinders; 2186 } 2187 } 2188 2189 static void 2190 dasendorderedtag(void *arg) 2191 { 2192 struct da_softc *softc = arg; 2193 2194 if (da_send_ordered) { 2195 if ((softc->ordered_tag_count == 0) 2196 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2197 softc->flags |= DA_FLAG_NEED_OTAG; 2198 } 2199 if (softc->outstanding_cmds > 0) 2200 softc->flags &= ~DA_FLAG_WENT_IDLE; 2201 2202 softc->ordered_tag_count = 0; 2203 } 2204 /* Queue us up again */ 2205 callout_reset(&softc->sendordered_c, 2206 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2207 dasendorderedtag, softc); 2208 } 2209 2210 /* 2211 * Step through all DA peripheral drivers, and if the device is still open, 2212 * sync the disk cache to physical media. 2213 */ 2214 static void 2215 dashutdown(void * arg, int howto) 2216 { 2217 struct cam_periph *periph; 2218 struct da_softc *softc; 2219 2220 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2221 union ccb ccb; 2222 2223 cam_periph_lock(periph); 2224 softc = (struct da_softc *)periph->softc; 2225 2226 /* 2227 * We only sync the cache if the drive is still open, and 2228 * if the drive is capable of it.. 2229 */ 2230 if (((softc->flags & DA_FLAG_OPEN) == 0) 2231 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2232 cam_periph_unlock(periph); 2233 continue; 2234 } 2235 2236 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2237 2238 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2239 scsi_synchronize_cache(&ccb.csio, 2240 /*retries*/1, 2241 /*cbfcnp*/dadone, 2242 MSG_SIMPLE_Q_TAG, 2243 /*begin_lba*/0, /* whole disk */ 2244 /*lb_count*/0, 2245 SSD_FULL_SIZE, 2246 60 * 60 * 1000); 2247 2248 xpt_polled_action(&ccb); 2249 2250 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2251 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2252 CAM_SCSI_STATUS_ERROR) 2253 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2254 int error_code, sense_key, asc, ascq; 2255 2256 scsi_extract_sense(&ccb.csio.sense_data, 2257 &error_code, &sense_key, 2258 &asc, &ascq); 2259 2260 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2261 scsi_sense_print(&ccb.csio); 2262 } else { 2263 xpt_print(periph->path, "Synchronize " 2264 "cache failed, status == 0x%x, scsi status " 2265 "== 0x%x\n", ccb.ccb_h.status, 2266 ccb.csio.scsi_status); 2267 } 2268 } 2269 2270 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2271 cam_release_devq(ccb.ccb_h.path, 2272 /*relsim_flags*/0, 2273 /*reduction*/0, 2274 /*timeout*/0, 2275 /*getcount_only*/0); 2276 2277 cam_periph_unlock(periph); 2278 } 2279 } 2280 2281 #else /* !_KERNEL */ 2282 2283 /* 2284 * XXX This is only left out of the kernel build to silence warnings. If, 2285 * for some reason this function is used in the kernel, the ifdefs should 2286 * be moved so it is included both in the kernel and userland. 2287 */ 2288 void 2289 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2290 void (*cbfcnp)(struct cam_periph *, union ccb *), 2291 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2292 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2293 u_int32_t timeout) 2294 { 2295 struct scsi_format_unit *scsi_cmd; 2296 2297 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2298 scsi_cmd->opcode = FORMAT_UNIT; 2299 scsi_cmd->byte2 = byte2; 2300 scsi_ulto2b(ileave, scsi_cmd->interleave); 2301 2302 cam_fill_csio(csio, 2303 retries, 2304 cbfcnp, 2305 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2306 tag_action, 2307 data_ptr, 2308 dxfer_len, 2309 sense_len, 2310 sizeof(*scsi_cmd), 2311 timeout); 2312 } 2313 2314 #endif /* _KERNEL */ 2315