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 1.52 2007/12/02 16:38:11 pavalos Exp $ 30 */ 31 32 #ifdef _KERNEL 33 #include "opt_hw_wdog.h" 34 #endif /* _KERNEL */ 35 36 #include <sys/param.h> 37 #include <sys/bootmaj.h> 38 39 #ifdef _KERNEL 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/buf.h> 43 #include <sys/sysctl.h> 44 #include <sys/taskqueue.h> 45 #endif /* _KERNEL */ 46 47 #include <sys/devicestat.h> 48 #include <sys/conf.h> 49 #ifdef _KERNEL 50 #include <sys/disk.h> 51 #include <sys/dtype.h> 52 #include <sys/eventhandler.h> 53 #include <sys/malloc.h> 54 #include <sys/cons.h> 55 #include <sys/proc.h> 56 #endif 57 #include <sys/buf2.h> 58 #ifdef _KERNEL 59 #include <sys/thread2.h> 60 #endif 61 62 #include <machine/md_var.h> 63 64 #ifdef _KERNEL 65 #include <vm/vm.h> 66 #include <vm/pmap.h> 67 #endif 68 69 #ifndef _KERNEL 70 #include <stdio.h> 71 #include <string.h> 72 #endif /* _KERNEL */ 73 74 #include "../cam.h" 75 #include "../cam_ccb.h" 76 #include "../cam_extend.h" 77 #include "../cam_periph.h" 78 #include "../cam_xpt_periph.h" 79 80 #include "scsi_message.h" 81 82 #ifndef _KERNEL 83 #include "scsi_da.h" 84 #endif /* !_KERNEL */ 85 86 #ifdef _KERNEL 87 typedef enum { 88 DA_STATE_PROBE, 89 DA_STATE_PROBE2, 90 DA_STATE_NORMAL 91 } da_state; 92 93 typedef enum { 94 DA_FLAG_PACK_INVALID = 0x001, 95 DA_FLAG_NEW_PACK = 0x002, 96 DA_FLAG_PACK_LOCKED = 0x004, 97 DA_FLAG_PACK_REMOVABLE = 0x008, 98 DA_FLAG_TAGGED_QUEUING = 0x010, 99 DA_FLAG_NEED_OTAG = 0x020, 100 DA_FLAG_WENT_IDLE = 0x040, 101 DA_FLAG_RETRY_UA = 0x080, 102 DA_FLAG_OPEN = 0x100, 103 DA_FLAG_SCTX_INIT = 0x200 104 } da_flags; 105 106 typedef enum { 107 DA_Q_NONE = 0x00, 108 DA_Q_NO_SYNC_CACHE = 0x01, 109 DA_Q_NO_6_BYTE = 0x02, 110 DA_Q_NO_PREVENT = 0x04 111 } da_quirks; 112 113 typedef enum { 114 DA_CCB_PROBE = 0x01, 115 DA_CCB_PROBE2 = 0x02, 116 DA_CCB_BUFFER_IO = 0x03, 117 DA_CCB_WAITING = 0x04, 118 DA_CCB_DUMP = 0x05, 119 DA_CCB_TYPE_MASK = 0x0F, 120 DA_CCB_RETRY_UA = 0x10 121 } da_ccb_state; 122 123 /* Offsets into our private area for storing information */ 124 #define ccb_state ppriv_field0 125 #define ccb_bio ppriv_ptr1 126 127 struct disk_params { 128 u_int8_t heads; 129 u_int32_t cylinders; 130 u_int8_t secs_per_track; 131 u_int32_t secsize; /* Number of bytes/sector */ 132 u_int64_t sectors; /* total number sectors */ 133 }; 134 135 struct da_softc { 136 struct bio_queue_head bio_queue; 137 struct devstat device_stats; 138 SLIST_ENTRY(da_softc) links; 139 LIST_HEAD(, ccb_hdr) pending_ccbs; 140 da_state state; 141 da_flags flags; 142 da_quirks quirks; 143 int minimum_cmd_size; 144 int ordered_tag_count; 145 int outstanding_cmds; 146 struct disk_params params; 147 struct disk disk; 148 union ccb saved_ccb; 149 struct task sysctl_task; 150 struct sysctl_ctx_list sysctl_ctx; 151 struct sysctl_oid *sysctl_tree; 152 }; 153 154 struct da_quirk_entry { 155 struct scsi_inquiry_pattern inq_pat; 156 da_quirks quirks; 157 }; 158 159 static const char quantum[] = "QUANTUM"; 160 static const char microp[] = "MICROP"; 161 162 static struct da_quirk_entry da_quirk_table[] = 163 { 164 /* SPI, FC devices */ 165 { 166 /* 167 * Fujitsu M2513A MO drives. 168 * Tested devices: M2513A2 firmware versions 1200 & 1300. 169 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 170 * Reported by: W.Scholten <whs@xs4all.nl> 171 */ 172 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 173 /*quirks*/ DA_Q_NO_SYNC_CACHE 174 }, 175 { 176 /* See above. */ 177 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 178 /*quirks*/ DA_Q_NO_SYNC_CACHE 179 }, 180 { 181 /* 182 * This particular Fujitsu drive doesn't like the 183 * synchronize cache command. 184 * Reported by: Tom Jackson <toj@gorilla.net> 185 */ 186 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 187 /*quirks*/ DA_Q_NO_SYNC_CACHE 188 }, 189 { 190 /* 191 * This drive doesn't like the synchronize cache command 192 * either. Reported by: Matthew Jacob <mjacob@feral.com> 193 * in NetBSD PR kern/6027, August 24, 1998. 194 */ 195 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 196 /*quirks*/ DA_Q_NO_SYNC_CACHE 197 }, 198 { 199 /* 200 * This drive doesn't like the synchronize cache command 201 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 202 * (PR 8882). 203 */ 204 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 205 /*quirks*/ DA_Q_NO_SYNC_CACHE 206 }, 207 { 208 /* 209 * Doesn't like the synchronize cache command. 210 * Reported by: Blaz Zupan <blaz@gold.amis.net> 211 */ 212 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 213 /*quirks*/ DA_Q_NO_SYNC_CACHE 214 }, 215 { 216 /* 217 * Doesn't like the synchronize cache command. 218 * Reported by: Blaz Zupan <blaz@gold.amis.net> 219 */ 220 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 221 /*quirks*/ DA_Q_NO_SYNC_CACHE 222 }, 223 { 224 /* 225 * Doesn't like the synchronize cache command. 226 */ 227 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 228 /*quirks*/ DA_Q_NO_SYNC_CACHE 229 }, 230 { 231 /* 232 * Doesn't like the synchronize cache command. 233 * Reported by: walter@pelissero.de 234 */ 235 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 236 /*quirks*/ DA_Q_NO_SYNC_CACHE 237 }, 238 { 239 /* 240 * Doesn't work correctly with 6 byte reads/writes. 241 * Returns illegal request, and points to byte 9 of the 242 * 6-byte CDB. 243 * Reported by: Adam McDougall <bsdx@spawnet.com> 244 */ 245 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 246 /*quirks*/ DA_Q_NO_6_BYTE 247 }, 248 { 249 /* See above. */ 250 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 251 /*quirks*/ DA_Q_NO_6_BYTE 252 }, 253 { 254 /* 255 * Doesn't like the synchronize cache command. 256 * Reported by: walter@pelissero.de 257 */ 258 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 259 /*quirks*/ DA_Q_NO_SYNC_CACHE 260 }, 261 { 262 /* 263 * The CISS RAID controllers do not support SYNC_CACHE 264 */ 265 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 266 /*quirks*/ DA_Q_NO_SYNC_CACHE 267 }, 268 /* USB mass storage devices supported by umass(4) */ 269 { 270 /* 271 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 272 * PR: kern/51675 273 */ 274 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 275 /*quirks*/ DA_Q_NO_SYNC_CACHE 276 }, 277 { 278 /* 279 * Power Quotient Int. (PQI) USB flash key 280 * PR: kern/53067 281 */ 282 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 283 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 284 }, 285 { 286 /* 287 * Creative Nomad MUVO mp3 player (USB) 288 * PR: kern/53094 289 */ 290 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 291 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 292 }, 293 { 294 /* 295 * Jungsoft NEXDISK USB flash key 296 * PR: kern/54737 297 */ 298 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 299 /*quirks*/ DA_Q_NO_SYNC_CACHE 300 }, 301 { 302 /* 303 * FreeDik USB Mini Data Drive 304 * PR: kern/54786 305 */ 306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 307 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 308 }, 309 { 310 /* 311 * Sigmatel USB Flash MP3 Player 312 * PR: kern/57046 313 */ 314 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 315 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 316 }, 317 { 318 /* 319 * Neuros USB Digital Audio Computer 320 * PR: kern/63645 321 */ 322 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 323 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 324 }, 325 { 326 /* 327 * SEAGRAND NP-900 MP3 Player 328 * PR: kern/64563 329 */ 330 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 331 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 332 }, 333 { 334 /* 335 * iRiver iFP MP3 player (with UMS Firmware) 336 * PR: kern/54881, i386/63941, kern/66124 337 */ 338 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 339 /*quirks*/ DA_Q_NO_SYNC_CACHE 340 }, 341 { 342 /* 343 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 344 * PR: kern/70158 345 */ 346 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 347 /*quirks*/ DA_Q_NO_SYNC_CACHE 348 }, 349 { 350 /* 351 * ZICPlay USB MP3 Player with FM 352 * PR: kern/75057 353 */ 354 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 355 /*quirks*/ DA_Q_NO_SYNC_CACHE 356 }, 357 { 358 /* 359 * TEAC USB floppy mechanisms 360 */ 361 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 362 /*quirks*/ DA_Q_NO_SYNC_CACHE 363 }, 364 { 365 /* 366 * Kingston DataTraveler II+ USB Pen-Drive. 367 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 368 */ 369 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", 370 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 371 }, 372 { 373 /* 374 * Motorola E398 Mobile Phone (TransFlash memory card). 375 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 376 * PR: usb/89889 377 */ 378 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 379 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 380 }, 381 { 382 /* 383 * Qware BeatZkey! Pro 384 * PR: usb/79164 385 */ 386 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 387 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 388 }, 389 { 390 /* 391 * Time DPA20B 1GB MP3 Player 392 * PR: usb/81846 393 */ 394 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 395 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 396 }, 397 { 398 /* 399 * Samsung USB key 128Mb 400 * PR: usb/90081 401 */ 402 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 403 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 404 }, 405 { 406 /* 407 * Kingston DataTraveler 2.0 USB Flash memory. 408 * PR: usb/89196 409 */ 410 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 411 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 412 }, 413 { 414 /* 415 * Creative MUVO Slim mp3 player (USB) 416 * PR: usb/86131 417 */ 418 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 419 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 420 }, 421 { 422 /* 423 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 424 * PR: usb/80487 425 */ 426 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 427 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 428 }, 429 { 430 /* 431 * SanDisk Micro Cruzer 128MB 432 * PR: usb/75970 433 */ 434 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 435 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 436 }, 437 { 438 /* 439 * TOSHIBA TransMemory USB sticks 440 * PR: kern/94660 441 */ 442 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 443 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 444 }, 445 { 446 /* 447 * PNY USB Flash keys 448 * PR: usb/75578, usb/72344, usb/65436 449 */ 450 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 451 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 452 }, 453 { 454 /* 455 * Genesys 6-in-1 Card Reader 456 * PR: usb/94647 457 */ 458 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 459 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 460 }, 461 { 462 /* 463 * Rekam Digital CAMERA 464 * PR: usb/98713 465 */ 466 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 467 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 468 }, 469 { 470 /* 471 * iRiver H10 MP3 player 472 * PR: usb/102547 473 */ 474 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 475 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 476 }, 477 { 478 /* 479 * iRiver U10 MP3 player 480 * PR: usb/92306 481 */ 482 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", 483 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 484 }, 485 { 486 /* 487 * X-Micro Flash Disk 488 * PR: usb/96901 489 */ 490 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", 491 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 492 }, 493 { 494 /* 495 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 496 * PR: usb/96546 497 */ 498 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 499 "1.0"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 500 }, 501 { 502 /* 503 * Denver MP3 player 504 * PR: usb/107101 505 */ 506 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 507 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 508 }, 509 { 510 /* 511 * Philips USB Key Audio KEY013 512 * PR: usb/68412 513 */ 514 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, 515 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 516 }, 517 { 518 /* 519 * JNC MP3 Player 520 * PR: usb/94439 521 */ 522 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", 523 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 524 }, 525 { 526 /* 527 * SAMSUNG MP0402H 528 * PR: usb/108427 529 */ 530 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, 531 /*quirks*/ DA_Q_NO_SYNC_CACHE 532 }, 533 { 534 /* 535 * I/O Magic USB flash - Giga Bank 536 * PR: usb/108810 537 */ 538 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, 539 /*quirks*/ DA_Q_NO_SYNC_CACHE 540 }, 541 { 542 /* 543 * JoyFly 128mb USB Flash Drive 544 * PR: 96133 545 */ 546 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", 547 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 548 }, 549 { 550 /* 551 * ChipsBnk usb stick 552 * PR: 103702 553 */ 554 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", 555 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 556 }, 557 }; 558 559 static d_open_t daopen; 560 static d_close_t daclose; 561 static d_strategy_t dastrategy; 562 static d_dump_t dadump; 563 static periph_init_t dainit; 564 static void daasync(void *callback_arg, u_int32_t code, 565 struct cam_path *path, void *arg); 566 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 567 static periph_ctor_t daregister; 568 static periph_dtor_t dacleanup; 569 static periph_start_t dastart; 570 static periph_oninv_t daoninvalidate; 571 static void dadone(struct cam_periph *periph, 572 union ccb *done_ccb); 573 static int daerror(union ccb *ccb, u_int32_t cam_flags, 574 u_int32_t sense_flags); 575 static void daprevent(struct cam_periph *periph, int action); 576 static int dagetcapacity(struct cam_periph *periph); 577 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 578 uint64_t maxsector); 579 580 static timeout_t dasendorderedtag; 581 static void dashutdown(void *arg, int howto); 582 583 #ifndef DA_DEFAULT_TIMEOUT 584 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 585 #endif 586 587 #ifndef DA_DEFAULT_RETRY 588 #define DA_DEFAULT_RETRY 4 589 #endif 590 591 #ifndef DA_DEFAULT_SEND_ORDERED 592 #define DA_DEFAULT_SEND_ORDERED 1 593 #endif 594 595 static int da_retry_count = DA_DEFAULT_RETRY; 596 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 597 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 598 static struct callout dasendorderedtag_ch; 599 600 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 601 "CAM Direct Access Disk driver"); 602 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 603 &da_retry_count, 0, "Normal I/O retry count"); 604 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 605 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 606 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 607 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 608 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 609 &da_send_ordered, 0, "Send Ordered Tags"); 610 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 611 612 /* 613 * DA_ORDEREDTAG_INTERVAL determines how often, relative 614 * to the default timeout, we check to see whether an ordered 615 * tagged transaction is appropriate to prevent simple tag 616 * starvation. Since we'd like to ensure that there is at least 617 * 1/2 of the timeout length left for a starved transaction to 618 * complete after we've sent an ordered tag, we must poll at least 619 * four times in every timeout period. This takes care of the worst 620 * case where a starved transaction starts during an interval that 621 * meets the requirement "don't send an ordered tag" test so it takes 622 * us two intervals to determine that a tag must be sent. 623 */ 624 #ifndef DA_ORDEREDTAG_INTERVAL 625 #define DA_ORDEREDTAG_INTERVAL 4 626 #endif 627 628 static struct periph_driver dadriver = 629 { 630 dainit, "da", 631 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 632 }; 633 634 PERIPHDRIVER_DECLARE(da, dadriver); 635 636 static struct dev_ops da_ops = { 637 { "da", DA_CDEV_MAJOR, D_DISK }, 638 .d_open = daopen, 639 .d_close = daclose, 640 .d_read = physread, 641 .d_write = physwrite, 642 .d_strategy = dastrategy, 643 .d_dump = dadump 644 }; 645 646 static SLIST_HEAD(,da_softc) softc_list; 647 static struct extend_array *daperiphs; 648 649 static int 650 daopen(struct dev_open_args *ap) 651 { 652 cdev_t dev = ap->a_head.a_dev; 653 struct cam_periph *periph; 654 struct da_softc *softc; 655 struct disk_info info; 656 int unit; 657 int error; 658 659 unit = dkunit(dev); 660 crit_enter(); 661 periph = cam_extend_get(daperiphs, unit); 662 if (periph == NULL) { 663 crit_exit(); 664 return (ENXIO); 665 } 666 667 softc = (struct da_softc *)periph->softc; 668 669 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 670 ("daopen: dev=%s (unit %d)\n", devtoname(dev), 671 unit)); 672 673 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 674 crit_exit(); 675 return (error); /* error code from tsleep */ 676 } 677 678 if ((softc->flags & DA_FLAG_OPEN) == 0) { 679 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 680 crit_exit(); 681 return(ENXIO); 682 } 683 softc->flags |= DA_FLAG_OPEN; 684 } 685 686 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 687 /* Invalidate our pack information. */ 688 disk_invalidate(&softc->disk); 689 softc->flags &= ~DA_FLAG_PACK_INVALID; 690 } 691 crit_exit(); 692 693 error = dagetcapacity(periph); 694 695 #if 0 696 /* Do a read capacity */ 697 { 698 struct scsi_read_capacity_data *rcap; 699 union ccb *ccb; 700 701 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 702 703 ccb = cam_periph_getccb(periph, /*priority*/1); 704 scsi_read_capacity(&ccb->csio, 705 /*retries*/1, 706 /*cbfncp*/dadone, 707 MSG_SIMPLE_Q_TAG, 708 rcap, 709 SSD_FULL_SIZE, 710 /*timeout*/60000); 711 ccb->ccb_h.ccb_bio = NULL; 712 713 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 714 /*sense_flags*/SF_RETRY_UA | 715 SF_RETRY_SELTO, 716 &softc->device_stats); 717 718 xpt_release_ccb(ccb); 719 720 if (error == 0) { 721 dasetgeom(periph, rcap); 722 } 723 724 kfree(rcap, M_TEMP); 725 } 726 #endif 727 728 if (error == 0) { 729 struct ccb_getdev cgd; 730 731 /* Build disk information structure */ 732 bzero(&info, sizeof(info)); 733 info.d_type = DTYPE_SCSI; 734 735 /* 736 * Grab the inquiry data to get the vendor and product names. 737 * Put them in the typename and packname for the label. 738 */ 739 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 740 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 741 xpt_action((union ccb *)&cgd); 742 743 #if 0 744 strncpy(label->d_typename, cgd.inq_data.vendor, 745 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 746 strncpy(label->d_packname, cgd.inq_data.product, 747 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 748 #endif 749 750 /* 751 * Mandatory fields 752 */ 753 info.d_media_blksize = softc->params.secsize; 754 info.d_media_blocks = softc->params.sectors; 755 info.d_media_size = 0; 756 757 /* 758 * Optional fields 759 */ 760 info.d_secpertrack = softc->params.secs_per_track; 761 info.d_nheads = softc->params.heads; 762 info.d_ncylinders = softc->params.cylinders; 763 info.d_secpercyl = softc->params.heads * 764 softc->params.secs_per_track; 765 disk_setdiskinfo(&softc->disk, &info); 766 767 /* 768 * Check to see whether or not the blocksize is set yet. 769 * If it isn't, set it and then clear the blocksize 770 * unavailable flag for the device statistics. 771 */ 772 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 773 softc->device_stats.block_size = softc->params.secsize; 774 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 775 } 776 } 777 778 if (error == 0) { 779 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 780 (softc->quirks & DA_Q_NO_PREVENT) == 0) 781 daprevent(periph, PR_PREVENT); 782 } else { 783 softc->flags &= ~DA_FLAG_OPEN; 784 cam_periph_release(periph); 785 } 786 cam_periph_unlock(periph); 787 return (error); 788 } 789 790 static int 791 daclose(struct dev_close_args *ap) 792 { 793 cdev_t dev = ap->a_head.a_dev; 794 struct cam_periph *periph; 795 struct da_softc *softc; 796 int unit; 797 int error; 798 799 unit = dkunit(dev); 800 periph = cam_extend_get(daperiphs, unit); 801 if (periph == NULL) 802 return (ENXIO); 803 804 softc = (struct da_softc *)periph->softc; 805 806 if ((error = cam_periph_lock(periph, 0)) != 0) { 807 return (error); /* error code from tsleep */ 808 } 809 810 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 811 union ccb *ccb; 812 813 ccb = cam_periph_getccb(periph, /*priority*/1); 814 815 scsi_synchronize_cache(&ccb->csio, 816 /*retries*/1, 817 /*cbfcnp*/dadone, 818 MSG_SIMPLE_Q_TAG, 819 /*begin_lba*/0,/* Cover the whole disk */ 820 /*lb_count*/0, 821 SSD_FULL_SIZE, 822 5 * 60 * 1000); 823 824 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 825 /*sense_flags*/SF_RETRY_UA, 826 &softc->device_stats); 827 828 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 829 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 830 CAM_SCSI_STATUS_ERROR) { 831 int asc, ascq; 832 int sense_key, error_code; 833 834 scsi_extract_sense(&ccb->csio.sense_data, 835 &error_code, 836 &sense_key, 837 &asc, &ascq); 838 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 839 scsi_sense_print(&ccb->csio); 840 } else { 841 xpt_print_path(periph->path); 842 kprintf("Synchronize cache failed, status " 843 "== 0x%x, scsi status == 0x%x\n", 844 ccb->csio.ccb_h.status, 845 ccb->csio.scsi_status); 846 } 847 } 848 849 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 850 cam_release_devq(ccb->ccb_h.path, 851 /*relsim_flags*/0, 852 /*reduction*/0, 853 /*timeout*/0, 854 /*getcount_only*/0); 855 856 xpt_release_ccb(ccb); 857 858 } 859 860 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 861 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 862 daprevent(periph, PR_ALLOW); 863 /* 864 * If we've got removeable media, mark the blocksize as 865 * unavailable, since it could change when new media is 866 * inserted. 867 */ 868 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 869 } 870 871 /* 872 * Don't compound any ref counting software bugs with more. 873 */ 874 if (softc->flags & DA_FLAG_OPEN) { 875 softc->flags &= ~DA_FLAG_OPEN; 876 cam_periph_release(periph); 877 } else { 878 xpt_print_path(periph->path); 879 kprintf("daclose() called on an already closed device!\n"); 880 } 881 cam_periph_unlock(periph); 882 return (0); 883 } 884 885 /* 886 * Actually translate the requested transfer into one the physical driver 887 * can understand. The transfer is described by a buf and will include 888 * only one physical transfer. 889 */ 890 static int 891 dastrategy(struct dev_strategy_args *ap) 892 { 893 cdev_t dev = ap->a_head.a_dev; 894 struct bio *bio = ap->a_bio; 895 struct buf *bp = bio->bio_buf; 896 struct cam_periph *periph; 897 struct da_softc *softc; 898 u_int unit; 899 u_int part; 900 901 unit = dkunit(dev); 902 part = dkpart(dev); 903 periph = cam_extend_get(daperiphs, unit); 904 if (periph == NULL) { 905 bp->b_error = ENXIO; 906 goto bad; 907 } 908 softc = (struct da_softc *)periph->softc; 909 #if 0 910 /* 911 * check it's not too big a transfer for our adapter 912 */ 913 scsi_minphys(bp, &sd_switch); 914 #endif 915 916 /* 917 * Mask interrupts so that the pack cannot be invalidated until 918 * after we are in the queue. Otherwise, we might not properly 919 * clean up one of the buffers. 920 */ 921 crit_enter(); 922 923 /* 924 * If the device has been made invalid, error out 925 */ 926 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 927 crit_exit(); 928 bp->b_error = ENXIO; 929 goto bad; 930 } 931 932 /* 933 * Place it in the queue of disk activities for this disk 934 */ 935 bioqdisksort(&softc->bio_queue, bio); 936 937 crit_exit(); 938 939 /* 940 * Schedule ourselves for performing the work. 941 */ 942 xpt_schedule(periph, /* XXX priority */1); 943 944 return(0); 945 bad: 946 bp->b_flags |= B_ERROR; 947 948 /* 949 * Correctly set the buf to indicate a completed xfer 950 */ 951 bp->b_resid = bp->b_bcount; 952 biodone(bio); 953 return(0); 954 } 955 956 static int 957 dadump(struct dev_dump_args *ap) 958 { 959 cdev_t dev = ap->a_head.a_dev; 960 struct cam_periph *periph; 961 struct da_softc *softc; 962 u_int unit; 963 long blkcnt; 964 vm_paddr_t addr; 965 struct ccb_scsiio csio; 966 int dumppages = MAXDUMPPGS; 967 int i; 968 969 /* toss any characters present prior to dump */ 970 while (cncheckc() != -1) 971 ; 972 973 unit = dkunit(dev); 974 periph = cam_extend_get(daperiphs, unit); 975 if (periph == NULL) { 976 return (ENXIO); 977 } 978 softc = (struct da_softc *)periph->softc; 979 980 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 981 return (ENXIO); 982 983 addr = 0; /* starting address */ 984 blkcnt = howmany(PAGE_SIZE, ap->a_secsize); 985 986 while (ap->a_count > 0) { 987 caddr_t va = NULL; 988 989 if ((ap->a_count / blkcnt) < dumppages) 990 dumppages = ap->a_count / blkcnt; 991 992 for (i = 0; i < dumppages; ++i) { 993 vm_paddr_t a = addr + (i * PAGE_SIZE); 994 if (is_physical_memory(a)) 995 va = pmap_kenter_temporary(trunc_page(a), i); 996 else 997 va = pmap_kenter_temporary(trunc_page(0), i); 998 } 999 1000 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1001 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1002 scsi_read_write(&csio, 1003 /*retries*/1, 1004 dadone, 1005 MSG_ORDERED_Q_TAG, 1006 /*read*/FALSE, 1007 /*byte2*/0, 1008 /*minimum_cmd_size*/ softc->minimum_cmd_size, 1009 ap->a_blkno, 1010 blkcnt * dumppages, 1011 /*data_ptr*/(u_int8_t *) va, 1012 /*dxfer_len*/blkcnt * ap->a_secsize * dumppages, 1013 /*sense_len*/SSD_FULL_SIZE, 1014 DA_DEFAULT_TIMEOUT * 1000); 1015 xpt_polled_action((union ccb *)&csio); 1016 1017 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1018 kprintf("Aborting dump due to I/O error.\n"); 1019 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1020 CAM_SCSI_STATUS_ERROR) 1021 scsi_sense_print(&csio); 1022 else 1023 kprintf("status == 0x%x, scsi status == 0x%x\n", 1024 csio.ccb_h.status, csio.scsi_status); 1025 return(EIO); 1026 } 1027 1028 if (dumpstatus(addr, (off_t)ap->a_count * softc->params.secsize) < 0) 1029 return (EINTR); 1030 1031 /* update block count */ 1032 ap->a_count -= blkcnt * dumppages; 1033 ap->a_blkno += blkcnt * dumppages; 1034 addr += PAGE_SIZE * dumppages; 1035 } 1036 1037 /* 1038 * Sync the disk cache contents to the physical media. 1039 */ 1040 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 1041 1042 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1043 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1044 scsi_synchronize_cache(&csio, 1045 /*retries*/1, 1046 /*cbfcnp*/dadone, 1047 MSG_SIMPLE_Q_TAG, 1048 /*begin_lba*/0,/* Cover the whole disk */ 1049 /*lb_count*/0, 1050 SSD_FULL_SIZE, 1051 5 * 60 * 1000); 1052 xpt_polled_action((union ccb *)&csio); 1053 1054 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1055 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1056 CAM_SCSI_STATUS_ERROR) { 1057 int asc, ascq; 1058 int sense_key, error_code; 1059 1060 scsi_extract_sense(&csio.sense_data, 1061 &error_code, 1062 &sense_key, 1063 &asc, &ascq); 1064 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1065 scsi_sense_print(&csio); 1066 } else { 1067 xpt_print_path(periph->path); 1068 kprintf("Synchronize cache failed, status " 1069 "== 0x%x, scsi status == 0x%x\n", 1070 csio.ccb_h.status, csio.scsi_status); 1071 } 1072 } 1073 } 1074 return (0); 1075 } 1076 1077 static void 1078 dainit(void) 1079 { 1080 cam_status status; 1081 struct cam_path *path; 1082 1083 /* 1084 * Create our extend array for storing the devices we attach to. 1085 */ 1086 daperiphs = cam_extend_new(); 1087 SLIST_INIT(&softc_list); 1088 if (daperiphs == NULL) { 1089 kprintf("da: Failed to alloc extend array!\n"); 1090 return; 1091 } 1092 1093 callout_init(&dasendorderedtag_ch); 1094 1095 /* 1096 * Install a global async callback. This callback will 1097 * receive async callbacks like "new device found". 1098 */ 1099 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 1100 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1101 1102 if (status == CAM_REQ_CMP) { 1103 struct ccb_setasync csa; 1104 1105 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 1106 csa.ccb_h.func_code = XPT_SASYNC_CB; 1107 csa.event_enable = AC_FOUND_DEVICE; 1108 csa.callback = daasync; 1109 csa.callback_arg = NULL; 1110 xpt_action((union ccb *)&csa); 1111 status = csa.ccb_h.status; 1112 xpt_free_path(path); 1113 } 1114 1115 if (status != CAM_REQ_CMP) { 1116 kprintf("da: Failed to attach master async callback " 1117 "due to status 0x%x!\n", status); 1118 } else if (da_send_ordered) { 1119 1120 /* 1121 * Schedule a periodic event to occasionally send an 1122 * ordered tag to a device. 1123 */ 1124 callout_reset(&dasendorderedtag_ch, 1125 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1126 dasendorderedtag, NULL); 1127 1128 /* Register our shutdown event handler */ 1129 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1130 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1131 kprintf("dainit: shutdown event registration failed!\n"); 1132 } 1133 } 1134 1135 static void 1136 daoninvalidate(struct cam_periph *periph) 1137 { 1138 struct da_softc *softc; 1139 struct bio *q_bio; 1140 struct buf *q_bp; 1141 struct ccb_setasync csa; 1142 1143 softc = (struct da_softc *)periph->softc; 1144 1145 /* 1146 * De-register any async callbacks. 1147 */ 1148 xpt_setup_ccb(&csa.ccb_h, periph->path, 1149 /* priority */ 5); 1150 csa.ccb_h.func_code = XPT_SASYNC_CB; 1151 csa.event_enable = 0; 1152 csa.callback = daasync; 1153 csa.callback_arg = periph; 1154 xpt_action((union ccb *)&csa); 1155 1156 softc->flags |= DA_FLAG_PACK_INVALID; 1157 1158 /* 1159 * Use a critical section to keep the buffer queue from being 1160 * modified while we traverse it. 1161 */ 1162 crit_enter(); 1163 1164 /* 1165 * Return all queued I/O with ENXIO. 1166 * XXX Handle any transactions queued to the card 1167 * with XPT_ABORT_CCB. 1168 */ 1169 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ 1170 bioq_remove(&softc->bio_queue, q_bio); 1171 q_bp = q_bio->bio_buf; 1172 q_bp->b_resid = q_bp->b_bcount; 1173 q_bp->b_error = ENXIO; 1174 q_bp->b_flags |= B_ERROR; 1175 biodone(q_bio); 1176 } 1177 crit_exit(); 1178 1179 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1180 1181 xpt_print_path(periph->path); 1182 kprintf("lost device\n"); 1183 } 1184 1185 static void 1186 dacleanup(struct cam_periph *periph) 1187 { 1188 struct da_softc *softc; 1189 1190 softc = (struct da_softc *)periph->softc; 1191 1192 devstat_remove_entry(&softc->device_stats); 1193 cam_extend_release(daperiphs, periph->unit_number); 1194 xpt_print_path(periph->path); 1195 kprintf("removing device entry\n"); 1196 /* 1197 * If we can't free the sysctl tree, oh well... 1198 */ 1199 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1200 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1201 xpt_print_path(periph->path); 1202 kprintf("can't remove sysctl context\n"); 1203 } 1204 if (softc->disk.d_rawdev) { 1205 disk_destroy(&softc->disk); 1206 } 1207 kfree(softc, M_DEVBUF); 1208 } 1209 1210 static void 1211 daasync(void *callback_arg, u_int32_t code, 1212 struct cam_path *path, void *arg) 1213 { 1214 struct cam_periph *periph; 1215 1216 periph = (struct cam_periph *)callback_arg; 1217 switch (code) { 1218 case AC_FOUND_DEVICE: 1219 { 1220 struct ccb_getdev *cgd; 1221 cam_status status; 1222 1223 cgd = (struct ccb_getdev *)arg; 1224 if (cgd == NULL) 1225 break; 1226 1227 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1228 && SID_TYPE(&cgd->inq_data) != T_RBC 1229 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1230 break; 1231 1232 /* 1233 * Allocate a peripheral instance for 1234 * this device and start the probe 1235 * process. 1236 */ 1237 status = cam_periph_alloc(daregister, daoninvalidate, 1238 dacleanup, dastart, 1239 "da", CAM_PERIPH_BIO, 1240 cgd->ccb_h.path, daasync, 1241 AC_FOUND_DEVICE, cgd); 1242 1243 if (status != CAM_REQ_CMP 1244 && status != CAM_REQ_INPROG) 1245 kprintf("daasync: Unable to attach to new device " 1246 "due to status 0x%x\n", status); 1247 break; 1248 } 1249 case AC_SENT_BDR: 1250 case AC_BUS_RESET: 1251 { 1252 struct da_softc *softc; 1253 struct ccb_hdr *ccbh; 1254 1255 softc = (struct da_softc *)periph->softc; 1256 crit_enter(); 1257 /* 1258 * Don't fail on the expected unit attention 1259 * that will occur. 1260 */ 1261 softc->flags |= DA_FLAG_RETRY_UA; 1262 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1263 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1264 crit_exit(); 1265 /* FALLTHROUGH*/ 1266 } 1267 default: 1268 cam_periph_async(periph, code, path, arg); 1269 break; 1270 } 1271 } 1272 1273 static void 1274 dasysctlinit(void *context, int pending) 1275 { 1276 struct cam_periph *periph; 1277 struct da_softc *softc; 1278 char tmpstr[80], tmpstr2[80]; 1279 1280 periph = (struct cam_periph *)context; 1281 softc = (struct da_softc *)periph->softc; 1282 1283 ksnprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1284 ksnprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1285 1286 sysctl_ctx_init(&softc->sysctl_ctx); 1287 softc->flags |= DA_FLAG_SCTX_INIT; 1288 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1289 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1290 CTLFLAG_RD, 0, tmpstr); 1291 if (softc->sysctl_tree == NULL) { 1292 kprintf("dasysctlinit: unable to allocate sysctl tree\n"); 1293 return; 1294 } 1295 1296 /* 1297 * Now register the sysctl handler, so the user can the value on 1298 * the fly. 1299 */ 1300 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1301 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1302 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1303 "Minimum CDB size"); 1304 } 1305 1306 static int 1307 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1308 { 1309 int error, value; 1310 1311 value = *(int *)arg1; 1312 1313 error = sysctl_handle_int(oidp, &value, 0, req); 1314 1315 if ((error != 0) 1316 || (req->newptr == NULL)) 1317 return (error); 1318 1319 /* 1320 * Acceptable values here are 6, 10 or 12, or 16. 1321 */ 1322 if (value < 6) 1323 value = 6; 1324 else if ((value > 6) 1325 && (value <= 10)) 1326 value = 10; 1327 else if ((value > 10) 1328 && (value <= 12)) 1329 value = 12; 1330 else if (value > 12) 1331 value = 16; 1332 1333 *(int *)arg1 = value; 1334 1335 return (0); 1336 } 1337 1338 static cam_status 1339 daregister(struct cam_periph *periph, void *arg) 1340 { 1341 struct da_softc *softc; 1342 struct ccb_setasync csa; 1343 struct ccb_pathinq cpi; 1344 struct ccb_getdev *cgd; 1345 char tmpstr[80]; 1346 caddr_t match; 1347 1348 cgd = (struct ccb_getdev *)arg; 1349 if (periph == NULL) { 1350 kprintf("daregister: periph was NULL!!\n"); 1351 return(CAM_REQ_CMP_ERR); 1352 } 1353 1354 if (cgd == NULL) { 1355 kprintf("daregister: no getdev CCB, can't register device\n"); 1356 return(CAM_REQ_CMP_ERR); 1357 } 1358 1359 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1360 LIST_INIT(&softc->pending_ccbs); 1361 softc->state = DA_STATE_PROBE; 1362 bioq_init(&softc->bio_queue); 1363 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1364 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1365 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1366 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1367 1368 periph->softc = softc; 1369 1370 cam_extend_set(daperiphs, periph->unit_number, periph); 1371 1372 /* 1373 * See if this device has any quirks. 1374 */ 1375 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1376 (caddr_t)da_quirk_table, 1377 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1378 sizeof(*da_quirk_table), scsi_inquiry_match); 1379 1380 if (match != NULL) 1381 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1382 else 1383 softc->quirks = DA_Q_NONE; 1384 1385 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1386 1387 /* Check if the SIM does not want 6 byte commands */ 1388 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1389 cpi.ccb_h.func_code = XPT_PATH_INQ; 1390 xpt_action((union ccb *)&cpi); 1391 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1392 softc->quirks |= DA_Q_NO_6_BYTE; 1393 1394 /* 1395 * RBC devices don't have to support READ(6), only READ(10). 1396 */ 1397 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1398 softc->minimum_cmd_size = 10; 1399 else 1400 softc->minimum_cmd_size = 6; 1401 1402 /* 1403 * Load the user's default, if any. 1404 */ 1405 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1406 periph->unit_number); 1407 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1408 1409 /* 1410 * 6, 10, 12, and 16 are the currently permissible values. 1411 */ 1412 if (softc->minimum_cmd_size < 6) 1413 softc->minimum_cmd_size = 6; 1414 else if ((softc->minimum_cmd_size > 6) 1415 && (softc->minimum_cmd_size <= 10)) 1416 softc->minimum_cmd_size = 10; 1417 else if ((softc->minimum_cmd_size > 10) 1418 && (softc->minimum_cmd_size <= 12)) 1419 softc->minimum_cmd_size = 12; 1420 else if (softc->minimum_cmd_size > 12) 1421 softc->minimum_cmd_size = 16; 1422 1423 /* 1424 * Block our timeout handler while we 1425 * add this softc to the dev list. 1426 */ 1427 crit_enter(); 1428 SLIST_INSERT_HEAD(&softc_list, softc, links); 1429 crit_exit(); 1430 1431 /* 1432 * The DA driver supports a blocksize, but 1433 * we don't know the blocksize until we do 1434 * a read capacity. So, set a flag to 1435 * indicate that the blocksize is 1436 * unavailable right now. We'll clear the 1437 * flag as soon as we've done a read capacity. 1438 */ 1439 devstat_add_entry(&softc->device_stats, "da", 1440 periph->unit_number, 0, 1441 DEVSTAT_BS_UNAVAILABLE, 1442 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1443 DEVSTAT_PRIORITY_DISK); 1444 1445 /* 1446 * Register this media as a disk 1447 */ 1448 disk_create(periph->unit_number, &softc->disk, &da_ops); 1449 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 1450 1451 /* 1452 * Add async callbacks for bus reset and 1453 * bus device reset calls. I don't bother 1454 * checking if this fails as, in most cases, 1455 * the system will function just fine without 1456 * them and the only alternative would be to 1457 * not attach the device on failure. 1458 */ 1459 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1460 csa.ccb_h.func_code = XPT_SASYNC_CB; 1461 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1462 csa.callback = daasync; 1463 csa.callback_arg = periph; 1464 xpt_action((union ccb *)&csa); 1465 /* 1466 * Lock this peripheral until we are setup. 1467 * This first call can't block 1468 */ 1469 cam_periph_lock(periph, 0); 1470 xpt_schedule(periph, /*priority*/5); 1471 1472 return(CAM_REQ_CMP); 1473 } 1474 1475 static void 1476 dastart(struct cam_periph *periph, union ccb *start_ccb) 1477 { 1478 struct da_softc *softc; 1479 1480 softc = (struct da_softc *)periph->softc; 1481 1482 1483 switch (softc->state) { 1484 case DA_STATE_NORMAL: 1485 { 1486 /* Pull a buffer from the queue and get going on it */ 1487 struct bio *bio; 1488 struct buf *bp; 1489 1490 /* 1491 * See if there is a buf with work for us to do.. 1492 */ 1493 crit_enter(); 1494 bio = bioq_first(&softc->bio_queue); 1495 if (periph->immediate_priority <= periph->pinfo.priority) { 1496 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1497 ("queuing for immediate ccb\n")); 1498 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1499 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1500 periph_links.sle); 1501 periph->immediate_priority = CAM_PRIORITY_NONE; 1502 crit_exit(); 1503 wakeup(&periph->ccb_list); 1504 } else if (bio == NULL) { 1505 crit_exit(); 1506 xpt_release_ccb(start_ccb); 1507 } else { 1508 u_int8_t tag_code; 1509 1510 bioq_remove(&softc->bio_queue, bio); 1511 bp = bio->bio_buf; 1512 1513 devstat_start_transaction(&softc->device_stats); 1514 1515 if ((bp->b_flags & B_ORDERED) != 0 1516 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1517 softc->flags &= ~DA_FLAG_NEED_OTAG; 1518 softc->ordered_tag_count++; 1519 tag_code = MSG_ORDERED_Q_TAG; 1520 } else { 1521 tag_code = MSG_SIMPLE_Q_TAG; 1522 } 1523 1524 KKASSERT(bio->bio_offset % softc->params.secsize == 0); 1525 1526 scsi_read_write(&start_ccb->csio, 1527 /*retries*/da_retry_count, 1528 dadone, 1529 tag_code, 1530 (bp->b_cmd == BUF_CMD_READ), 1531 /*byte2*/0, 1532 softc->minimum_cmd_size, 1533 bio->bio_offset / softc->params.secsize, 1534 bp->b_bcount / softc->params.secsize, 1535 bp->b_data, 1536 bp->b_bcount, 1537 /*sense_len*/SSD_FULL_SIZE, 1538 da_default_timeout * 1000); 1539 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1540 1541 /* 1542 * Block out any asyncronous callbacks 1543 * while we touch the pending ccb list. 1544 */ 1545 LIST_INSERT_HEAD(&softc->pending_ccbs, 1546 &start_ccb->ccb_h, periph_links.le); 1547 1548 softc->outstanding_cmds++; 1549 /* We expect a unit attention from this device */ 1550 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1551 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1552 softc->flags &= ~DA_FLAG_RETRY_UA; 1553 } 1554 1555 start_ccb->ccb_h.ccb_bio = bio; 1556 bio = bioq_first(&softc->bio_queue); 1557 crit_exit(); 1558 1559 xpt_action(start_ccb); 1560 } 1561 1562 if (bio != NULL) { 1563 /* Have more work to do, so ensure we stay scheduled */ 1564 xpt_schedule(periph, /* XXX priority */1); 1565 } 1566 break; 1567 } 1568 case DA_STATE_PROBE: 1569 { 1570 struct ccb_scsiio *csio; 1571 struct scsi_read_capacity_data *rcap; 1572 1573 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 1574 csio = &start_ccb->csio; 1575 scsi_read_capacity(csio, 1576 /*retries*/4, 1577 dadone, 1578 MSG_SIMPLE_Q_TAG, 1579 rcap, 1580 SSD_FULL_SIZE, 1581 /*timeout*/5000); 1582 start_ccb->ccb_h.ccb_bio = NULL; 1583 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1584 xpt_action(start_ccb); 1585 break; 1586 } 1587 case DA_STATE_PROBE2: 1588 { 1589 struct ccb_scsiio *csio; 1590 struct scsi_read_capacity_data_long *rcaplong; 1591 1592 rcaplong = (struct scsi_read_capacity_data_long *) 1593 kmalloc(sizeof(*rcaplong), M_TEMP, M_INTWAIT); 1594 if (rcaplong == NULL) { 1595 kprintf("dastart: Couldn't allocate read_capacity\n"); 1596 /* da_free_periph??? */ 1597 break; 1598 } 1599 csio = &start_ccb->csio; 1600 scsi_read_capacity_16(csio, 1601 /*retries*/ 4, 1602 /*cbfcnp*/ dadone, 1603 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1604 /*lba*/ 0, 1605 /*reladr*/ 0, 1606 /*pmi*/ 0, 1607 rcaplong, 1608 /*sense_len*/ SSD_FULL_SIZE, 1609 /*timeout*/ 60000); 1610 start_ccb->ccb_h.ccb_bio = NULL; 1611 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1612 xpt_action(start_ccb); 1613 break; 1614 } 1615 } 1616 } 1617 1618 static int 1619 cmd6workaround(union ccb *ccb) 1620 { 1621 struct scsi_rw_6 cmd6; 1622 struct scsi_rw_10 *cmd10; 1623 struct da_softc *softc; 1624 u_int8_t *cdb; 1625 int frozen; 1626 1627 cdb = ccb->csio.cdb_io.cdb_bytes; 1628 1629 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1630 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1631 (*cdb != READ_6 && *cdb != WRITE_6)) 1632 return 0; 1633 1634 xpt_print_path(ccb->ccb_h.path); 1635 kprintf("READ(6)/WRITE(6) not supported, " 1636 "increasing minimum_cmd_size to 10.\n"); 1637 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1638 softc->minimum_cmd_size = 10; 1639 1640 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1641 cmd10 = (struct scsi_rw_10 *)cdb; 1642 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1643 cmd10->byte2 = 0; 1644 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1645 cmd10->reserved = 0; 1646 scsi_ulto2b(cmd6.length, cmd10->length); 1647 cmd10->control = cmd6.control; 1648 ccb->csio.cdb_len = sizeof(*cmd10); 1649 1650 /* Requeue request, unfreezing queue if necessary */ 1651 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1652 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1653 xpt_action(ccb); 1654 if (frozen) { 1655 cam_release_devq(ccb->ccb_h.path, 1656 /*relsim_flags*/0, 1657 /*reduction*/0, 1658 /*timeout*/0, 1659 /*getcount_only*/0); 1660 } 1661 return (ERESTART); 1662 } 1663 1664 static void 1665 dadone(struct cam_periph *periph, union ccb *done_ccb) 1666 { 1667 struct da_softc *softc; 1668 struct ccb_scsiio *csio; 1669 1670 softc = (struct da_softc *)periph->softc; 1671 csio = &done_ccb->csio; 1672 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1673 case DA_CCB_BUFFER_IO: 1674 { 1675 struct buf *bp; 1676 struct bio *bio; 1677 1678 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1679 bp = bio->bio_buf; 1680 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1681 int error; 1682 int sf; 1683 1684 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1685 sf = SF_RETRY_UA; 1686 else 1687 sf = 0; 1688 1689 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1690 if (error == ERESTART) { 1691 /* 1692 * A retry was scheuled, so 1693 * just return. 1694 */ 1695 return; 1696 } 1697 if (error != 0) { 1698 struct bio *q_bio; 1699 struct buf *q_bp; 1700 1701 crit_enter(); 1702 1703 if (error == ENXIO) { 1704 /* 1705 * Catastrophic error. Mark our pack as 1706 * invalid. 1707 */ 1708 /* XXX See if this is really a media 1709 * change first. 1710 */ 1711 xpt_print_path(periph->path); 1712 kprintf("Invalidating pack\n"); 1713 softc->flags |= DA_FLAG_PACK_INVALID; 1714 } 1715 1716 /* 1717 * return all queued I/O with EIO, so that 1718 * the client can retry these I/Os in the 1719 * proper order should it attempt to recover. 1720 */ 1721 while ((q_bio = bioq_first(&softc->bio_queue)) 1722 != NULL) { 1723 bioq_remove(&softc->bio_queue, q_bio); 1724 q_bp = q_bio->bio_buf; 1725 q_bp->b_resid = q_bp->b_bcount; 1726 q_bp->b_error = EIO; 1727 q_bp->b_flags |= B_ERROR; 1728 biodone(q_bio); 1729 } 1730 crit_exit(); 1731 bp->b_error = error; 1732 bp->b_resid = bp->b_bcount; 1733 bp->b_flags |= B_ERROR; 1734 } else { 1735 bp->b_resid = csio->resid; 1736 bp->b_error = 0; 1737 if (bp->b_resid != 0) 1738 bp->b_flags |= B_ERROR; 1739 } 1740 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1741 cam_release_devq(done_ccb->ccb_h.path, 1742 /*relsim_flags*/0, 1743 /*reduction*/0, 1744 /*timeout*/0, 1745 /*getcount_only*/0); 1746 } else { 1747 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1748 panic("REQ_CMP with QFRZN"); 1749 bp->b_resid = csio->resid; 1750 if (csio->resid > 0) 1751 bp->b_flags |= B_ERROR; 1752 } 1753 1754 /* 1755 * Block out any asyncronous callbacks 1756 * while we touch the pending ccb list. 1757 */ 1758 crit_enter(); 1759 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1760 softc->outstanding_cmds--; 1761 if (softc->outstanding_cmds == 0) 1762 softc->flags |= DA_FLAG_WENT_IDLE; 1763 crit_exit(); 1764 1765 devstat_end_transaction_buf(&softc->device_stats, bp); 1766 biodone(bio); 1767 break; 1768 } 1769 case DA_CCB_PROBE: 1770 case DA_CCB_PROBE2: 1771 { 1772 struct scsi_read_capacity_data *rdcap; 1773 struct scsi_read_capacity_data_long *rcaplong; 1774 char announce_buf[80]; 1775 1776 rdcap = NULL; 1777 rcaplong = NULL; 1778 if (softc->state == DA_STATE_PROBE) 1779 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1780 else 1781 rcaplong = (struct scsi_read_capacity_data_long *) 1782 csio->data_ptr; 1783 1784 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1785 struct disk_params *dp; 1786 uint32_t block_size; 1787 uint64_t maxsector; 1788 1789 if (softc->state == DA_STATE_PROBE) { 1790 block_size = scsi_4btoul(rdcap->length); 1791 maxsector = scsi_4btoul(rdcap->addr); 1792 1793 /* 1794 * According to SBC-2, if the standard 10 1795 * byte READ CAPACITY command returns 2^32, 1796 * we should issue the 16 byte version of 1797 * the command, since the device in question 1798 * has more sectors than can be represented 1799 * with the short version of the command. 1800 */ 1801 if (maxsector == 0xffffffff) { 1802 softc->state = DA_STATE_PROBE2; 1803 kfree(rdcap, M_TEMP); 1804 xpt_release_ccb(done_ccb); 1805 xpt_schedule(periph, /*priority*/5); 1806 return; 1807 } 1808 } else { 1809 block_size = scsi_4btoul(rcaplong->length); 1810 maxsector = scsi_8btou64(rcaplong->addr); 1811 } 1812 dasetgeom(periph, block_size, maxsector); 1813 dp = &softc->params; 1814 ksnprintf(announce_buf, sizeof(announce_buf), 1815 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1816 (uintmax_t) (((uintmax_t)dp->secsize * 1817 dp->sectors) / (1024*1024)), 1818 (uintmax_t)dp->sectors, 1819 dp->secsize, dp->heads, dp->secs_per_track, 1820 dp->cylinders); 1821 } else { 1822 int error; 1823 1824 announce_buf[0] = '\0'; 1825 1826 /* 1827 * Retry any UNIT ATTENTION type errors. They 1828 * are expected at boot. 1829 */ 1830 error = daerror(done_ccb, CAM_RETRY_SELTO, 1831 SF_RETRY_UA|SF_NO_PRINT); 1832 if (error == ERESTART) { 1833 /* 1834 * A retry was scheuled, so 1835 * just return. 1836 */ 1837 return; 1838 } else if (error != 0) { 1839 struct scsi_sense_data *sense; 1840 int asc, ascq; 1841 int sense_key, error_code; 1842 int have_sense; 1843 cam_status status; 1844 struct ccb_getdev cgd; 1845 1846 /* Don't wedge this device's queue */ 1847 status = done_ccb->ccb_h.status; 1848 if ((status & CAM_DEV_QFRZN) != 0) 1849 cam_release_devq(done_ccb->ccb_h.path, 1850 /*relsim_flags*/0, 1851 /*reduction*/0, 1852 /*timeout*/0, 1853 /*getcount_only*/0); 1854 1855 1856 xpt_setup_ccb(&cgd.ccb_h, 1857 done_ccb->ccb_h.path, 1858 /* priority */ 1); 1859 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1860 xpt_action((union ccb *)&cgd); 1861 1862 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1863 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1864 || ((status & CAM_AUTOSNS_VALID) == 0)) 1865 have_sense = FALSE; 1866 else 1867 have_sense = TRUE; 1868 1869 if (have_sense) { 1870 sense = &csio->sense_data; 1871 scsi_extract_sense(sense, &error_code, 1872 &sense_key, 1873 &asc, &ascq); 1874 } 1875 /* 1876 * Attach to anything that claims to be a 1877 * direct access or optical disk device, 1878 * as long as it doesn't return a "Logical 1879 * unit not supported" (0x25) error. 1880 */ 1881 if ((have_sense) && (asc != 0x25) 1882 && (error_code == SSD_CURRENT_ERROR)) { 1883 const char *sense_key_desc; 1884 const char *asc_desc; 1885 1886 scsi_sense_desc(sense_key, asc, ascq, 1887 &cgd.inq_data, 1888 &sense_key_desc, 1889 &asc_desc); 1890 ksnprintf(announce_buf, 1891 sizeof(announce_buf), 1892 "Attempt to query device " 1893 "size failed: %s, %s", 1894 sense_key_desc, 1895 asc_desc); 1896 } else { 1897 if (have_sense) 1898 scsi_sense_print( 1899 &done_ccb->csio); 1900 else { 1901 xpt_print_path(periph->path); 1902 kprintf("got CAM status %#x\n", 1903 done_ccb->ccb_h.status); 1904 } 1905 1906 xpt_print_path(periph->path); 1907 kprintf("fatal error, failed" 1908 " to attach to device\n"); 1909 1910 /* 1911 * Free up resources. 1912 */ 1913 cam_periph_invalidate(periph); 1914 } 1915 } 1916 } 1917 kfree(csio->data_ptr, M_TEMP); 1918 if (announce_buf[0] != '\0') { 1919 xpt_announce_periph(periph, announce_buf); 1920 /* 1921 * Create our sysctl variables, now that we know 1922 * we have successfully attached. 1923 */ 1924 taskqueue_enqueue(taskqueue_thread[mycpuid], 1925 &softc->sysctl_task); 1926 } 1927 softc->state = DA_STATE_NORMAL; 1928 /* 1929 * Since our peripheral may be invalidated by an error 1930 * above or an external event, we must release our CCB 1931 * before releasing the probe lock on the peripheral. 1932 * The peripheral will only go away once the last lock 1933 * is removed, and we need it around for the CCB release 1934 * operation. 1935 */ 1936 xpt_release_ccb(done_ccb); 1937 cam_periph_unlock(periph); 1938 return; 1939 } 1940 case DA_CCB_WAITING: 1941 { 1942 /* Caller will release the CCB */ 1943 wakeup(&done_ccb->ccb_h.cbfcnp); 1944 return; 1945 } 1946 case DA_CCB_DUMP: 1947 /* No-op. We're polling */ 1948 return; 1949 default: 1950 break; 1951 } 1952 xpt_release_ccb(done_ccb); 1953 } 1954 1955 static int 1956 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1957 { 1958 struct da_softc *softc; 1959 struct cam_periph *periph; 1960 int error; 1961 1962 periph = xpt_path_periph(ccb->ccb_h.path); 1963 softc = (struct da_softc *)periph->softc; 1964 1965 /* 1966 * Automatically detect devices that do not support 1967 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1968 */ 1969 error = 0; 1970 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1971 error = cmd6workaround(ccb); 1972 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1973 CAM_SCSI_STATUS_ERROR) 1974 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1975 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1976 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1977 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1978 int sense_key, error_code, asc, ascq; 1979 1980 scsi_extract_sense(&ccb->csio.sense_data, 1981 &error_code, &sense_key, &asc, &ascq); 1982 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1983 error = cmd6workaround(ccb); 1984 } 1985 if (error == ERESTART) 1986 return (ERESTART); 1987 1988 /* 1989 * XXX 1990 * Until we have a better way of doing pack validation, 1991 * don't treat UAs as errors. 1992 */ 1993 sense_flags |= SF_RETRY_UA; 1994 return(cam_periph_error(ccb, cam_flags, sense_flags, 1995 &softc->saved_ccb)); 1996 } 1997 1998 static void 1999 daprevent(struct cam_periph *periph, int action) 2000 { 2001 struct da_softc *softc; 2002 union ccb *ccb; 2003 int error; 2004 2005 softc = (struct da_softc *)periph->softc; 2006 2007 if (((action == PR_ALLOW) 2008 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 2009 || ((action == PR_PREVENT) 2010 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 2011 return; 2012 } 2013 2014 ccb = cam_periph_getccb(periph, /*priority*/1); 2015 2016 scsi_prevent(&ccb->csio, 2017 /*retries*/1, 2018 /*cbcfp*/dadone, 2019 MSG_SIMPLE_Q_TAG, 2020 action, 2021 SSD_FULL_SIZE, 2022 5000); 2023 2024 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 2025 SF_RETRY_UA, &softc->device_stats); 2026 2027 if (error == 0) { 2028 if (action == PR_ALLOW) 2029 softc->flags &= ~DA_FLAG_PACK_LOCKED; 2030 else 2031 softc->flags |= DA_FLAG_PACK_LOCKED; 2032 } 2033 2034 xpt_release_ccb(ccb); 2035 } 2036 2037 static int 2038 dagetcapacity(struct cam_periph *periph) 2039 { 2040 struct da_softc *softc; 2041 union ccb *ccb; 2042 struct scsi_read_capacity_data *rcap; 2043 struct scsi_read_capacity_data_long *rcaplong; 2044 uint32_t block_len; 2045 uint64_t maxsector; 2046 int error; 2047 2048 softc = (struct da_softc *)periph->softc; 2049 block_len = 0; 2050 maxsector = 0; 2051 error = 0; 2052 2053 /* Do a read capacity */ 2054 rcap = (void *)kmalloc(sizeof(*rcaplong), M_TEMP, M_INTWAIT); 2055 2056 ccb = cam_periph_getccb(periph, /*priority*/1); 2057 scsi_read_capacity(&ccb->csio, 2058 /*retries*/4, 2059 /*cbfncp*/dadone, 2060 MSG_SIMPLE_Q_TAG, 2061 rcap, 2062 SSD_FULL_SIZE, 2063 /*timeout*/60000); 2064 ccb->ccb_h.ccb_bio = NULL; 2065 2066 error = cam_periph_runccb(ccb, daerror, 2067 /*cam_flags*/CAM_RETRY_SELTO, 2068 /*sense_flags*/SF_RETRY_UA, 2069 &softc->device_stats); 2070 2071 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2072 cam_release_devq(ccb->ccb_h.path, 2073 /*relsim_flags*/0, 2074 /*reduction*/0, 2075 /*timeout*/0, 2076 /*getcount_only*/0); 2077 2078 if (error == 0) { 2079 block_len = scsi_4btoul(rcap->length); 2080 maxsector = scsi_4btoul(rcap->addr); 2081 2082 if (maxsector != 0xffffffff) 2083 goto done; 2084 } else 2085 goto done; 2086 2087 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 2088 2089 scsi_read_capacity_16(&ccb->csio, 2090 /*retries*/ 4, 2091 /*cbfcnp*/ dadone, 2092 /*tag_action*/ MSG_SIMPLE_Q_TAG, 2093 /*lba*/ 0, 2094 /*reladr*/ 0, 2095 /*pmi*/ 0, 2096 rcaplong, 2097 /*sense_len*/ SSD_FULL_SIZE, 2098 /*timeout*/ 60000); 2099 ccb->ccb_h.ccb_bio = NULL; 2100 2101 error = cam_periph_runccb(ccb, daerror, 2102 /*cam_flags*/CAM_RETRY_SELTO, 2103 /*sense_flags*/SF_RETRY_UA, 2104 &softc->device_stats); 2105 2106 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2107 cam_release_devq(ccb->ccb_h.path, 2108 /*relsim_flags*/0, 2109 /*reduction*/0, 2110 /*timeout*/0, 2111 /*getcount_only*/0); 2112 2113 if (error == 0) { 2114 block_len = scsi_4btoul(rcaplong->length); 2115 maxsector = scsi_8btou64(rcaplong->addr); 2116 } 2117 2118 done: 2119 2120 if (error == 0) 2121 dasetgeom(periph, block_len, maxsector); 2122 2123 xpt_release_ccb(ccb); 2124 2125 kfree(rcap, M_TEMP); 2126 2127 return (error); 2128 } 2129 2130 static void 2131 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2132 { 2133 struct ccb_calc_geometry ccg; 2134 struct da_softc *softc; 2135 struct disk_params *dp; 2136 2137 softc = (struct da_softc *)periph->softc; 2138 2139 dp = &softc->params; 2140 dp->secsize = block_len; 2141 dp->sectors = maxsector + 1; 2142 /* 2143 * Have the controller provide us with a geometry 2144 * for this disk. The only time the geometry 2145 * matters is when we boot and the controller 2146 * is the only one knowledgeable enough to come 2147 * up with something that will make this a bootable 2148 * device. 2149 */ 2150 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 2151 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2152 ccg.block_size = dp->secsize; 2153 ccg.volume_size = dp->sectors; 2154 ccg.heads = 0; 2155 ccg.secs_per_track = 0; 2156 ccg.cylinders = 0; 2157 xpt_action((union ccb*)&ccg); 2158 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2159 /* 2160 * We don't know what went wrong here- but just pick 2161 * a geometry so we don't have nasty things like divide 2162 * by zero. 2163 */ 2164 dp->heads = 255; 2165 dp->secs_per_track = 255; 2166 dp->cylinders = dp->sectors / (255 * 255); 2167 if (dp->cylinders == 0) { 2168 dp->cylinders = 1; 2169 } 2170 } else { 2171 dp->heads = ccg.heads; 2172 dp->secs_per_track = ccg.secs_per_track; 2173 dp->cylinders = ccg.cylinders; 2174 } 2175 } 2176 2177 static void 2178 dasendorderedtag(void *arg) 2179 { 2180 struct da_softc *softc; 2181 2182 if (da_send_ordered) { 2183 SLIST_FOREACH(softc, &softc_list, links) { 2184 crit_enter(); 2185 if ((softc->ordered_tag_count == 0) 2186 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2187 softc->flags |= DA_FLAG_NEED_OTAG; 2188 } 2189 if (softc->outstanding_cmds > 0) 2190 softc->flags &= ~DA_FLAG_WENT_IDLE; 2191 softc->ordered_tag_count = 0; 2192 crit_exit(); 2193 } 2194 /* Queue us up again */ 2195 callout_reset(&dasendorderedtag_ch, 2196 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL, 2197 dasendorderedtag, NULL); 2198 } 2199 } 2200 2201 /* 2202 * Step through all DA peripheral drivers, and if the device is still open, 2203 * sync the disk cache to physical media. 2204 */ 2205 static void 2206 dashutdown(void * arg, int howto) 2207 { 2208 struct cam_periph *periph; 2209 struct da_softc *softc; 2210 2211 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2212 union ccb ccb; 2213 2214 softc = (struct da_softc *)periph->softc; 2215 2216 /* 2217 * We only sync the cache if the drive is still open, and 2218 * if the drive is capable of it.. 2219 */ 2220 if (((softc->flags & DA_FLAG_OPEN) == 0) 2221 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 2222 continue; 2223 2224 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2225 2226 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2227 scsi_synchronize_cache(&ccb.csio, 2228 /*retries*/1, 2229 /*cbfcnp*/dadone, 2230 MSG_SIMPLE_Q_TAG, 2231 /*begin_lba*/0, /* whole disk */ 2232 /*lb_count*/0, 2233 SSD_FULL_SIZE, 2234 60 * 60 * 1000); 2235 2236 xpt_polled_action(&ccb); 2237 2238 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2239 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2240 CAM_SCSI_STATUS_ERROR) 2241 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2242 int error_code, sense_key, asc, ascq; 2243 2244 scsi_extract_sense(&ccb.csio.sense_data, 2245 &error_code, &sense_key, 2246 &asc, &ascq); 2247 2248 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2249 scsi_sense_print(&ccb.csio); 2250 } else { 2251 xpt_print_path(periph->path); 2252 kprintf("Synchronize cache failed, status " 2253 "== 0x%x, scsi status == 0x%x\n", 2254 ccb.ccb_h.status, ccb.csio.scsi_status); 2255 } 2256 } 2257 2258 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2259 cam_release_devq(ccb.ccb_h.path, 2260 /*relsim_flags*/0, 2261 /*reduction*/0, 2262 /*timeout*/0, 2263 /*getcount_only*/0); 2264 2265 } 2266 } 2267 2268 #else /* !_KERNEL */ 2269 2270 /* 2271 * XXX This is only left out of the kernel build to silence warnings. If, 2272 * for some reason this function is used in the kernel, the ifdefs should 2273 * be moved so it is included both in the kernel and userland. 2274 */ 2275 void 2276 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2277 void (*cbfcnp)(struct cam_periph *, union ccb *), 2278 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2279 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2280 u_int32_t timeout) 2281 { 2282 struct scsi_format_unit *scsi_cmd; 2283 2284 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2285 scsi_cmd->opcode = FORMAT_UNIT; 2286 scsi_cmd->byte2 = byte2; 2287 scsi_ulto2b(ileave, scsi_cmd->interleave); 2288 2289 cam_fill_csio(csio, 2290 retries, 2291 cbfcnp, 2292 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2293 tag_action, 2294 data_ptr, 2295 dxfer_len, 2296 sense_len, 2297 sizeof(*scsi_cmd), 2298 timeout); 2299 } 2300 2301 #endif /* _KERNEL */ 2302