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 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1015 csio.ccb_h.flags |= CAM_POLLED; 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 return(EIO); 1041 } 1042 1043 if (dumpstatus(addr, (off_t)ap->a_count * softc->params.secsize) < 0) 1044 return (EINTR); 1045 1046 /* update block count */ 1047 ap->a_count -= blkcnt * dumppages; 1048 ap->a_blkno += blkcnt * dumppages; 1049 addr += PAGE_SIZE * dumppages; 1050 } 1051 1052 /* 1053 * Sync the disk cache contents to the physical media. 1054 */ 1055 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 1056 1057 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1058 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1059 scsi_synchronize_cache(&csio, 1060 /*retries*/1, 1061 /*cbfcnp*/dadone, 1062 MSG_SIMPLE_Q_TAG, 1063 /*begin_lba*/0,/* Cover the whole disk */ 1064 /*lb_count*/0, 1065 SSD_FULL_SIZE, 1066 5 * 60 * 1000); 1067 xpt_polled_action((union ccb *)&csio); 1068 1069 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1070 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1071 CAM_SCSI_STATUS_ERROR) { 1072 int asc, ascq; 1073 int sense_key, error_code; 1074 1075 scsi_extract_sense(&csio.sense_data, 1076 &error_code, 1077 &sense_key, 1078 &asc, &ascq); 1079 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1080 scsi_sense_print(&csio); 1081 } else { 1082 xpt_print(periph->path, "Synchronize cache " 1083 "failed, status == 0x%x, scsi status == " 1084 "0x%x\n", csio.ccb_h.status, 1085 csio.scsi_status); 1086 } 1087 } 1088 } 1089 cam_periph_unlock(periph); 1090 return (0); 1091 } 1092 1093 static void 1094 dainit(void) 1095 { 1096 cam_status status; 1097 1098 /* 1099 * Create our extend array for storing the devices we attach to. 1100 */ 1101 daperiphs = cam_extend_new(); 1102 if (daperiphs == NULL) { 1103 kprintf("da: Failed to alloc extend array!\n"); 1104 return; 1105 } 1106 1107 callout_init(&dasendorderedtag_ch); 1108 1109 /* 1110 * Install a global async callback. This callback will 1111 * receive async callbacks like "new device found". 1112 */ 1113 status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL); 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 /* Register our shutdown event handler */ 1121 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1122 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1123 kprintf("dainit: shutdown event registration failed!\n"); 1124 } 1125 } 1126 1127 static void 1128 daoninvalidate(struct cam_periph *periph) 1129 { 1130 struct da_softc *softc; 1131 struct bio *q_bio; 1132 struct buf *q_bp; 1133 1134 softc = (struct da_softc *)periph->softc; 1135 1136 /* 1137 * De-register any async callbacks. 1138 */ 1139 xpt_register_async(0, daasync, periph, periph->path); 1140 1141 softc->flags |= DA_FLAG_PACK_INVALID; 1142 1143 /* 1144 * Return all queued I/O with ENXIO. 1145 * XXX Handle any transactions queued to the card 1146 * with XPT_ABORT_CCB. 1147 */ 1148 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ 1149 bioq_remove(&softc->bio_queue, q_bio); 1150 q_bp = q_bio->bio_buf; 1151 q_bp->b_resid = q_bp->b_bcount; 1152 q_bp->b_error = ENXIO; 1153 q_bp->b_flags |= B_ERROR; 1154 biodone(q_bio); 1155 } 1156 xpt_print(periph->path, "lost device\n"); 1157 } 1158 1159 static void 1160 dacleanup(struct cam_periph *periph) 1161 { 1162 struct da_softc *softc; 1163 1164 softc = (struct da_softc *)periph->softc; 1165 1166 devstat_remove_entry(&softc->device_stats); 1167 cam_extend_release(daperiphs, periph->unit_number); 1168 xpt_print(periph->path, "removing device entry\n"); 1169 /* 1170 * If we can't free the sysctl tree, oh well... 1171 */ 1172 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1173 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1174 xpt_print(periph->path, "can't remove sysctl context\n"); 1175 } 1176 periph->softc = NULL; 1177 if (softc->disk.d_rawdev) { 1178 cam_periph_unlock(periph); 1179 disk_destroy(&softc->disk); 1180 cam_periph_lock(periph); 1181 } 1182 1183 callout_stop(&softc->sendordered_c); 1184 kfree(softc, M_DEVBUF); 1185 } 1186 1187 static void 1188 daasync(void *callback_arg, u_int32_t code, 1189 struct cam_path *path, void *arg) 1190 { 1191 struct cam_periph *periph; 1192 1193 periph = (struct cam_periph *)callback_arg; 1194 1195 switch (code) { 1196 case AC_FOUND_DEVICE: 1197 { 1198 struct ccb_getdev *cgd; 1199 struct cam_sim *sim; 1200 cam_status status; 1201 1202 cgd = (struct ccb_getdev *)arg; 1203 if (cgd == NULL) 1204 break; 1205 1206 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1207 && SID_TYPE(&cgd->inq_data) != T_RBC 1208 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1209 break; 1210 1211 /* 1212 * Don't complain if a valid peripheral is already attached. 1213 */ 1214 periph = cam_periph_find(cgd->ccb_h.path, "da"); 1215 if (periph && (periph->flags & CAM_PERIPH_INVALID) == 0) 1216 break; 1217 1218 /* 1219 * Allocate a peripheral instance for 1220 * this device and start the probe 1221 * process. 1222 */ 1223 sim = xpt_path_sim(cgd->ccb_h.path); 1224 status = cam_periph_alloc(daregister, daoninvalidate, 1225 dacleanup, dastart, 1226 "da", CAM_PERIPH_BIO, 1227 cgd->ccb_h.path, daasync, 1228 AC_FOUND_DEVICE, cgd); 1229 1230 if (status != CAM_REQ_CMP && status != CAM_REQ_INPROG) { 1231 kprintf("daasync: Unable to attach to new device " 1232 "due to status 0x%x\n", status); 1233 } 1234 break; 1235 } 1236 case AC_SENT_BDR: 1237 case AC_BUS_RESET: 1238 { 1239 struct da_softc *softc; 1240 struct ccb_hdr *ccbh; 1241 1242 softc = (struct da_softc *)periph->softc; 1243 /* 1244 * Don't fail on the expected unit attention 1245 * that will occur. 1246 */ 1247 softc->flags |= DA_FLAG_RETRY_UA; 1248 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1249 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1250 /* FALLTHROUGH*/ 1251 } 1252 default: 1253 cam_periph_async(periph, code, path, arg); 1254 break; 1255 } 1256 } 1257 1258 static void 1259 dasysctlinit(void *context, int pending) 1260 { 1261 struct cam_periph *periph; 1262 struct da_softc *softc; 1263 char tmpstr[80], tmpstr2[80]; 1264 1265 periph = (struct cam_periph *)context; 1266 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 1267 return; 1268 1269 softc = (struct da_softc *)periph->softc; 1270 ksnprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1271 ksnprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1272 1273 sysctl_ctx_init(&softc->sysctl_ctx); 1274 softc->flags |= DA_FLAG_SCTX_INIT; 1275 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1276 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1277 CTLFLAG_RD, 0, tmpstr); 1278 if (softc->sysctl_tree == NULL) { 1279 kprintf("dasysctlinit: unable to allocate sysctl tree\n"); 1280 cam_periph_release(periph); 1281 return; 1282 } 1283 1284 /* 1285 * Now register the sysctl handler, so the user can the value on 1286 * the fly. 1287 */ 1288 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1289 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1290 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1291 "Minimum CDB size"); 1292 1293 cam_periph_release(periph); 1294 } 1295 1296 static int 1297 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1298 { 1299 int error, value; 1300 1301 value = *(int *)arg1; 1302 1303 error = sysctl_handle_int(oidp, &value, 0, req); 1304 1305 if ((error != 0) 1306 || (req->newptr == NULL)) 1307 return (error); 1308 1309 /* 1310 * Acceptable values here are 6, 10 or 12, or 16. 1311 */ 1312 if (value < 6) 1313 value = 6; 1314 else if ((value > 6) 1315 && (value <= 10)) 1316 value = 10; 1317 else if ((value > 10) 1318 && (value <= 12)) 1319 value = 12; 1320 else if (value > 12) 1321 value = 16; 1322 1323 *(int *)arg1 = value; 1324 1325 return (0); 1326 } 1327 1328 static cam_status 1329 daregister(struct cam_periph *periph, void *arg) 1330 { 1331 struct da_softc *softc; 1332 struct ccb_pathinq cpi; 1333 struct ccb_getdev *cgd; 1334 char tmpstr[80]; 1335 caddr_t match; 1336 1337 cgd = (struct ccb_getdev *)arg; 1338 if (periph == NULL) { 1339 kprintf("daregister: periph was NULL!!\n"); 1340 return(CAM_REQ_CMP_ERR); 1341 } 1342 1343 if (cgd == NULL) { 1344 kprintf("daregister: no getdev CCB, can't register device\n"); 1345 return(CAM_REQ_CMP_ERR); 1346 } 1347 1348 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1349 LIST_INIT(&softc->pending_ccbs); 1350 softc->state = DA_STATE_PROBE; 1351 bioq_init(&softc->bio_queue); 1352 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1353 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1354 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1355 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1356 1357 periph->softc = softc; 1358 1359 cam_extend_set(daperiphs, periph->unit_number, periph); 1360 1361 /* 1362 * See if this device has any quirks. 1363 */ 1364 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1365 (caddr_t)da_quirk_table, 1366 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1367 sizeof(*da_quirk_table), scsi_inquiry_match); 1368 1369 if (match != NULL) 1370 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1371 else 1372 softc->quirks = DA_Q_NONE; 1373 1374 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1375 1376 /* Check if the SIM does not want 6 byte commands */ 1377 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1378 cpi.ccb_h.func_code = XPT_PATH_INQ; 1379 xpt_action((union ccb *)&cpi); 1380 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1381 softc->quirks |= DA_Q_NO_6_BYTE; 1382 1383 /* 1384 * RBC devices don't have to support READ(6), only READ(10). 1385 */ 1386 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1387 softc->minimum_cmd_size = 10; 1388 else 1389 softc->minimum_cmd_size = 6; 1390 1391 /* 1392 * Load the user's default, if any. 1393 */ 1394 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1395 periph->unit_number); 1396 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1397 1398 /* 1399 * 6, 10, 12, and 16 are the currently permissible values. 1400 */ 1401 if (softc->minimum_cmd_size < 6) 1402 softc->minimum_cmd_size = 6; 1403 else if ((softc->minimum_cmd_size > 6) 1404 && (softc->minimum_cmd_size <= 10)) 1405 softc->minimum_cmd_size = 10; 1406 else if ((softc->minimum_cmd_size > 10) 1407 && (softc->minimum_cmd_size <= 12)) 1408 softc->minimum_cmd_size = 12; 1409 else if (softc->minimum_cmd_size > 12) 1410 softc->minimum_cmd_size = 16; 1411 1412 /* 1413 * The DA driver supports a blocksize, but 1414 * we don't know the blocksize until we do 1415 * a read capacity. So, set a flag to 1416 * indicate that the blocksize is 1417 * unavailable right now. We'll clear the 1418 * flag as soon as we've done a read capacity. 1419 */ 1420 devstat_add_entry(&softc->device_stats, "da", 1421 periph->unit_number, 0, 1422 DEVSTAT_BS_UNAVAILABLE, 1423 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1424 DEVSTAT_PRIORITY_DISK); 1425 1426 /* 1427 * Register this media as a disk 1428 */ 1429 1430 CAM_SIM_UNLOCK(periph->sim); 1431 disk_create(periph->unit_number, &softc->disk, &da_ops); 1432 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 1433 CAM_SIM_LOCK(periph->sim); 1434 1435 /* 1436 * Add async callbacks for bus reset and 1437 * bus device reset calls. I don't bother 1438 * checking if this fails as, in most cases, 1439 * the system will function just fine without 1440 * them and the only alternative would be to 1441 * not attach the device on failure. 1442 */ 1443 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 1444 daasync, periph, periph->path); 1445 1446 /* 1447 * Take an exclusive refcount on the periph while dastart is called 1448 * to finish the probe. The reference will be dropped in dadone at 1449 * the end of probe. 1450 */ 1451 cam_periph_hold(periph, 0); 1452 xpt_schedule(periph, /*priority*/5); 1453 1454 /* 1455 * Schedule a periodic event to occasionally send an 1456 * ordered tag to a device. 1457 */ 1458 callout_init(&softc->sendordered_c); 1459 callout_reset(&softc->sendordered_c, 1460 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1461 dasendorderedtag, softc); 1462 1463 return(CAM_REQ_CMP); 1464 } 1465 1466 static void 1467 dastart(struct cam_periph *periph, union ccb *start_ccb) 1468 { 1469 struct da_softc *softc; 1470 1471 softc = (struct da_softc *)periph->softc; 1472 1473 switch (softc->state) { 1474 case DA_STATE_NORMAL: 1475 { 1476 /* Pull a buffer from the queue and get going on it */ 1477 struct bio *bio; 1478 struct buf *bp; 1479 u_int8_t tag_code; 1480 1481 /* 1482 * See if there is a buf with work for us to do.. 1483 */ 1484 bio = bioq_first(&softc->bio_queue); 1485 if (periph->immediate_priority <= periph->pinfo.priority) { 1486 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1487 ("queuing for immediate ccb\n")); 1488 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1489 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1490 periph_links.sle); 1491 periph->immediate_priority = CAM_PRIORITY_NONE; 1492 wakeup(&periph->ccb_list); 1493 if (bio != NULL) { 1494 /* 1495 * Have more work to do, so ensure we stay 1496 * scheduled 1497 */ 1498 xpt_schedule(periph, /* XXX priority */1); 1499 } 1500 break; 1501 } 1502 if (bio == NULL) { 1503 xpt_release_ccb(start_ccb); 1504 break; 1505 } 1506 1507 /* 1508 * We can queue new work. 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 switch(bp->b_cmd) { 1525 case BUF_CMD_READ: 1526 case BUF_CMD_WRITE: 1527 /* 1528 * Block read/write op 1529 */ 1530 KKASSERT(bio->bio_offset % softc->params.secsize == 0); 1531 1532 scsi_read_write( 1533 &start_ccb->csio, 1534 da_retry_count, /* retries */ 1535 dadone, 1536 tag_code, 1537 (bp->b_cmd == BUF_CMD_READ), 1538 0, /* byte2 */ 1539 softc->minimum_cmd_size, 1540 bio->bio_offset / softc->params.secsize, 1541 bp->b_bcount / softc->params.secsize, 1542 bp->b_data, 1543 bp->b_bcount, 1544 SSD_FULL_SIZE, /* sense_len */ 1545 da_default_timeout * 1000 1546 ); 1547 break; 1548 case BUF_CMD_FLUSH: 1549 scsi_synchronize_cache( 1550 &start_ccb->csio, 1551 1, /* retries */ 1552 dadone, /* cbfcnp */ 1553 MSG_SIMPLE_Q_TAG, 1554 0, /* lba */ 1555 0, /* count (whole disk) */ 1556 SSD_FULL_SIZE, 1557 da_default_timeout*1000 /* timeout */ 1558 ); 1559 break; 1560 default: 1561 panic("dastart: unrecognized bio cmd %d", bp->b_cmd); 1562 break; /* NOT REACHED */ 1563 } 1564 1565 /* 1566 * Block out any asyncronous callbacks 1567 * while we touch the pending ccb list. 1568 */ 1569 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1570 LIST_INSERT_HEAD(&softc->pending_ccbs, 1571 &start_ccb->ccb_h, periph_links.le); 1572 softc->outstanding_cmds++; 1573 1574 /* We expect a unit attention from this device */ 1575 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1576 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1577 softc->flags &= ~DA_FLAG_RETRY_UA; 1578 } 1579 1580 start_ccb->ccb_h.ccb_bio = bio; 1581 xpt_action(start_ccb); 1582 1583 /* 1584 * Be sure we stay scheduled if we have more work to do. 1585 */ 1586 bio = bioq_first(&softc->bio_queue); 1587 if (bio != NULL) 1588 xpt_schedule(periph, 1); 1589 break; 1590 } 1591 case DA_STATE_PROBE: 1592 { 1593 struct ccb_scsiio *csio; 1594 struct scsi_read_capacity_data *rcap; 1595 1596 rcap = kmalloc(sizeof(*rcap), M_SCSIDA, M_INTWAIT | M_ZERO); 1597 csio = &start_ccb->csio; 1598 scsi_read_capacity(csio, 1599 /*retries*/4, 1600 dadone, 1601 MSG_SIMPLE_Q_TAG, 1602 rcap, 1603 SSD_FULL_SIZE, 1604 /*timeout*/5000); 1605 start_ccb->ccb_h.ccb_bio = NULL; 1606 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1607 xpt_action(start_ccb); 1608 break; 1609 } 1610 case DA_STATE_PROBE2: 1611 { 1612 struct ccb_scsiio *csio; 1613 struct scsi_read_capacity_data_16 *rcaplong; 1614 1615 rcaplong = kmalloc(sizeof(*rcaplong), M_SCSIDA, 1616 M_INTWAIT | M_ZERO); 1617 if (rcaplong == NULL) { 1618 kprintf("dastart: Couldn't allocate read_capacity\n"); 1619 /* da_free_periph??? */ 1620 break; 1621 } 1622 csio = &start_ccb->csio; 1623 scsi_read_capacity_16(csio, 1624 /*retries*/ 4, 1625 /*cbfcnp*/ dadone, 1626 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1627 /*lba*/ 0, 1628 /*reladr*/ 0, 1629 /*pmi*/ 0, 1630 rcaplong, 1631 /*sense_len*/ SSD_FULL_SIZE, 1632 /*timeout*/ 60000); 1633 start_ccb->ccb_h.ccb_bio = NULL; 1634 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1635 xpt_action(start_ccb); 1636 break; 1637 } 1638 } 1639 } 1640 1641 static int 1642 cmd6workaround(union ccb *ccb) 1643 { 1644 struct scsi_rw_6 cmd6; 1645 struct scsi_rw_10 *cmd10; 1646 struct da_softc *softc; 1647 u_int8_t *cdb; 1648 int frozen; 1649 1650 cdb = ccb->csio.cdb_io.cdb_bytes; 1651 1652 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1653 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1654 (*cdb != READ_6 && *cdb != WRITE_6)) 1655 return 0; 1656 1657 xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, " 1658 "increasing minimum_cmd_size to 10.\n"); 1659 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1660 softc->minimum_cmd_size = 10; 1661 1662 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1663 cmd10 = (struct scsi_rw_10 *)cdb; 1664 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1665 cmd10->byte2 = 0; 1666 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1667 cmd10->reserved = 0; 1668 scsi_ulto2b(cmd6.length, cmd10->length); 1669 cmd10->control = cmd6.control; 1670 ccb->csio.cdb_len = sizeof(*cmd10); 1671 1672 /* Requeue request, unfreezing queue if necessary */ 1673 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1674 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1675 xpt_action(ccb); 1676 if (frozen) { 1677 cam_release_devq(ccb->ccb_h.path, 1678 /*relsim_flags*/0, 1679 /*reduction*/0, 1680 /*timeout*/0, 1681 /*getcount_only*/0); 1682 } 1683 return (ERESTART); 1684 } 1685 1686 static void 1687 dadone(struct cam_periph *periph, union ccb *done_ccb) 1688 { 1689 struct da_softc *softc; 1690 struct ccb_scsiio *csio; 1691 1692 softc = (struct da_softc *)periph->softc; 1693 csio = &done_ccb->csio; 1694 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1695 case DA_CCB_BUFFER_IO: 1696 { 1697 struct buf *bp; 1698 struct bio *bio; 1699 1700 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1701 bp = bio->bio_buf; 1702 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1703 int error; 1704 int sf; 1705 1706 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1707 sf = SF_RETRY_UA; 1708 else 1709 sf = 0; 1710 1711 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1712 if (error == ERESTART) { 1713 /* 1714 * A retry was scheuled, so 1715 * just return. 1716 */ 1717 return; 1718 } 1719 if (error != 0) { 1720 struct bio *q_bio; 1721 struct buf *q_bp; 1722 1723 if (error == ENXIO) { 1724 /* 1725 * Catastrophic error. Mark our pack as 1726 * invalid. 1727 */ 1728 /* 1729 * XXX See if this is really a media 1730 * XXX change first? 1731 */ 1732 xpt_print(periph->path, 1733 "Invalidating pack\n"); 1734 softc->flags |= DA_FLAG_PACK_INVALID; 1735 } 1736 1737 /* 1738 * return all queued I/O with EIO, so that 1739 * the client can retry these I/Os in the 1740 * proper order should it attempt to recover. 1741 */ 1742 while ((q_bio = bioq_first(&softc->bio_queue)) 1743 != NULL) { 1744 bioq_remove(&softc->bio_queue, q_bio); 1745 q_bp = q_bio->bio_buf; 1746 q_bp->b_resid = q_bp->b_bcount; 1747 q_bp->b_error = EIO; 1748 q_bp->b_flags |= B_ERROR; 1749 biodone(q_bio); 1750 } 1751 bp->b_error = error; 1752 bp->b_resid = bp->b_bcount; 1753 bp->b_flags |= B_ERROR; 1754 } else { 1755 bp->b_resid = csio->resid; 1756 bp->b_error = 0; 1757 if (bp->b_resid != 0) 1758 bp->b_flags |= B_ERROR; 1759 } 1760 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1761 cam_release_devq(done_ccb->ccb_h.path, 1762 /*relsim_flags*/0, 1763 /*reduction*/0, 1764 /*timeout*/0, 1765 /*getcount_only*/0); 1766 } else { 1767 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1768 panic("REQ_CMP with QFRZN"); 1769 bp->b_resid = csio->resid; 1770 if (csio->resid > 0) 1771 bp->b_flags |= B_ERROR; 1772 } 1773 1774 /* 1775 * Block out any asyncronous callbacks 1776 * while we touch the pending ccb list. 1777 */ 1778 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1779 softc->outstanding_cmds--; 1780 if (softc->outstanding_cmds == 0) 1781 softc->flags |= DA_FLAG_WENT_IDLE; 1782 1783 devstat_end_transaction_buf(&softc->device_stats, bp); 1784 biodone(bio); 1785 break; 1786 } 1787 case DA_CCB_PROBE: 1788 case DA_CCB_PROBE2: 1789 { 1790 struct scsi_read_capacity_data *rdcap; 1791 struct scsi_read_capacity_data_16 *rcaplong; 1792 char announce_buf[80]; 1793 1794 rdcap = NULL; 1795 rcaplong = NULL; 1796 if (softc->state == DA_STATE_PROBE) 1797 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1798 else 1799 rcaplong = (struct scsi_read_capacity_data_16 *) 1800 csio->data_ptr; 1801 1802 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1803 struct disk_params *dp; 1804 uint32_t block_size; 1805 uint64_t maxsector; 1806 1807 if (softc->state == DA_STATE_PROBE) { 1808 block_size = scsi_4btoul(rdcap->length); 1809 maxsector = scsi_4btoul(rdcap->addr); 1810 1811 /* 1812 * According to SBC-2, if the standard 10 1813 * byte READ CAPACITY command returns 2^32, 1814 * we should issue the 16 byte version of 1815 * the command, since the device in question 1816 * has more sectors than can be represented 1817 * with the short version of the command. 1818 */ 1819 if (maxsector == 0xffffffff) { 1820 softc->state = DA_STATE_PROBE2; 1821 kfree(rdcap, M_SCSIDA); 1822 xpt_release_ccb(done_ccb); 1823 xpt_schedule(periph, /*priority*/5); 1824 return; 1825 } 1826 } else { 1827 block_size = scsi_4btoul(rcaplong->length); 1828 maxsector = scsi_8btou64(rcaplong->addr); 1829 } 1830 dasetgeom(periph, block_size, maxsector); 1831 dp = &softc->params; 1832 ksnprintf(announce_buf, sizeof(announce_buf), 1833 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1834 (uintmax_t) (((uintmax_t)dp->secsize * 1835 dp->sectors) / (1024*1024)), 1836 (uintmax_t)dp->sectors, 1837 dp->secsize, dp->heads, dp->secs_per_track, 1838 dp->cylinders); 1839 } else { 1840 int error; 1841 1842 announce_buf[0] = '\0'; 1843 1844 /* 1845 * Retry any UNIT ATTENTION type errors. They 1846 * are expected at boot. 1847 */ 1848 error = daerror(done_ccb, CAM_RETRY_SELTO, 1849 SF_RETRY_UA|SF_NO_PRINT); 1850 if (error == ERESTART) { 1851 /* 1852 * A retry was scheuled, so 1853 * just return. 1854 */ 1855 return; 1856 } else if (error != 0) { 1857 struct scsi_sense_data *sense; 1858 int asc, ascq; 1859 int sense_key, error_code; 1860 int have_sense; 1861 cam_status status; 1862 struct ccb_getdev cgd; 1863 1864 /* Don't wedge this device's queue */ 1865 status = done_ccb->ccb_h.status; 1866 if ((status & CAM_DEV_QFRZN) != 0) 1867 cam_release_devq(done_ccb->ccb_h.path, 1868 /*relsim_flags*/0, 1869 /*reduction*/0, 1870 /*timeout*/0, 1871 /*getcount_only*/0); 1872 1873 1874 xpt_setup_ccb(&cgd.ccb_h, 1875 done_ccb->ccb_h.path, 1876 /* priority */ 1); 1877 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1878 xpt_action((union ccb *)&cgd); 1879 1880 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1881 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1882 || ((status & CAM_AUTOSNS_VALID) == 0)) 1883 have_sense = FALSE; 1884 else 1885 have_sense = TRUE; 1886 1887 if (have_sense) { 1888 sense = &csio->sense_data; 1889 scsi_extract_sense(sense, &error_code, 1890 &sense_key, 1891 &asc, &ascq); 1892 } 1893 /* 1894 * Attach to anything that claims to be a 1895 * direct access or optical disk device, 1896 * as long as it doesn't return a "Logical 1897 * unit not supported" (0x25) error. 1898 */ 1899 if ((have_sense) && (asc != 0x25) 1900 && (error_code == SSD_CURRENT_ERROR)) { 1901 const char *sense_key_desc; 1902 const char *asc_desc; 1903 1904 scsi_sense_desc(sense_key, asc, ascq, 1905 &cgd.inq_data, 1906 &sense_key_desc, 1907 &asc_desc); 1908 ksnprintf(announce_buf, 1909 sizeof(announce_buf), 1910 "Attempt to query device " 1911 "size failed: %s, %s", 1912 sense_key_desc, 1913 asc_desc); 1914 } else { 1915 if (have_sense) 1916 scsi_sense_print( 1917 &done_ccb->csio); 1918 else { 1919 xpt_print(periph->path, 1920 "got CAM status %#x\n", 1921 done_ccb->ccb_h.status); 1922 } 1923 1924 xpt_print(periph->path, "fatal error, " 1925 "failed to attach to device\n"); 1926 1927 /* 1928 * Free up resources. 1929 */ 1930 cam_periph_invalidate(periph); 1931 } 1932 } 1933 } 1934 kfree(csio->data_ptr, M_SCSIDA); 1935 if (announce_buf[0] != '\0') { 1936 xpt_announce_periph(periph, announce_buf); 1937 /* 1938 * Create our sysctl variables, now that we know 1939 * we have successfully attached. 1940 */ 1941 taskqueue_enqueue(taskqueue_thread[mycpuid], 1942 &softc->sysctl_task); 1943 } 1944 softc->state = DA_STATE_NORMAL; 1945 /* 1946 * Since our peripheral may be invalidated by an error 1947 * above or an external event, we must release our CCB 1948 * before releasing the probe lock on the peripheral. 1949 * The peripheral will only go away once the last lock 1950 * is removed, and we need it around for the CCB release 1951 * operation. 1952 */ 1953 xpt_release_ccb(done_ccb); 1954 cam_periph_unhold(periph, 0); 1955 return; 1956 } 1957 case DA_CCB_WAITING: 1958 { 1959 /* Caller will release the CCB */ 1960 wakeup(&done_ccb->ccb_h.cbfcnp); 1961 return; 1962 } 1963 case DA_CCB_DUMP: 1964 /* No-op. We're polling */ 1965 return; 1966 default: 1967 break; 1968 } 1969 xpt_release_ccb(done_ccb); 1970 } 1971 1972 static int 1973 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1974 { 1975 struct da_softc *softc; 1976 struct cam_periph *periph; 1977 int error; 1978 1979 periph = xpt_path_periph(ccb->ccb_h.path); 1980 softc = (struct da_softc *)periph->softc; 1981 1982 /* 1983 * Automatically detect devices that do not support 1984 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1985 */ 1986 error = 0; 1987 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1988 error = cmd6workaround(ccb); 1989 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1990 CAM_SCSI_STATUS_ERROR) 1991 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1992 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1993 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1994 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1995 int sense_key, error_code, asc, ascq; 1996 1997 scsi_extract_sense(&ccb->csio.sense_data, 1998 &error_code, &sense_key, &asc, &ascq); 1999 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 2000 error = cmd6workaround(ccb); 2001 } 2002 if (error == ERESTART) 2003 return (ERESTART); 2004 2005 /* 2006 * XXX 2007 * Until we have a better way of doing pack validation, 2008 * don't treat UAs as errors. 2009 */ 2010 sense_flags |= SF_RETRY_UA; 2011 return(cam_periph_error(ccb, cam_flags, sense_flags, 2012 &softc->saved_ccb)); 2013 } 2014 2015 static void 2016 daprevent(struct cam_periph *periph, int action) 2017 { 2018 struct da_softc *softc; 2019 union ccb *ccb; 2020 int error; 2021 2022 softc = (struct da_softc *)periph->softc; 2023 2024 if (((action == PR_ALLOW) 2025 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 2026 || ((action == PR_PREVENT) 2027 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 2028 return; 2029 } 2030 2031 ccb = cam_periph_getccb(periph, /*priority*/1); 2032 2033 scsi_prevent(&ccb->csio, 2034 /*retries*/1, 2035 /*cbcfp*/dadone, 2036 MSG_SIMPLE_Q_TAG, 2037 action, 2038 SSD_FULL_SIZE, 2039 5000); 2040 2041 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 2042 SF_RETRY_UA, &softc->device_stats); 2043 2044 if (error == 0) { 2045 if (action == PR_ALLOW) 2046 softc->flags &= ~DA_FLAG_PACK_LOCKED; 2047 else 2048 softc->flags |= DA_FLAG_PACK_LOCKED; 2049 } 2050 2051 xpt_release_ccb(ccb); 2052 } 2053 2054 static int 2055 dagetcapacity(struct cam_periph *periph) 2056 { 2057 struct da_softc *softc; 2058 union ccb *ccb; 2059 struct scsi_read_capacity_data *rcap; 2060 struct scsi_read_capacity_data_16 *rcaplong; 2061 uint32_t block_len; 2062 uint64_t maxsector; 2063 int error; 2064 2065 softc = (struct da_softc *)periph->softc; 2066 block_len = 0; 2067 maxsector = 0; 2068 error = 0; 2069 2070 /* Do a read capacity */ 2071 rcap = (struct scsi_read_capacity_data *)kmalloc(sizeof(*rcaplong), 2072 M_SCSIDA, M_INTWAIT); 2073 2074 ccb = cam_periph_getccb(periph, /*priority*/1); 2075 scsi_read_capacity(&ccb->csio, 2076 /*retries*/4, 2077 /*cbfncp*/dadone, 2078 MSG_SIMPLE_Q_TAG, 2079 rcap, 2080 SSD_FULL_SIZE, 2081 /*timeout*/60000); 2082 ccb->ccb_h.ccb_bio = NULL; 2083 2084 error = cam_periph_runccb(ccb, daerror, 2085 /*cam_flags*/CAM_RETRY_SELTO, 2086 /*sense_flags*/SF_RETRY_UA, 2087 &softc->device_stats); 2088 2089 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2090 cam_release_devq(ccb->ccb_h.path, 2091 /*relsim_flags*/0, 2092 /*reduction*/0, 2093 /*timeout*/0, 2094 /*getcount_only*/0); 2095 2096 if (error == 0) { 2097 block_len = scsi_4btoul(rcap->length); 2098 maxsector = scsi_4btoul(rcap->addr); 2099 2100 if (maxsector != 0xffffffff) 2101 goto done; 2102 } else 2103 goto done; 2104 2105 rcaplong = (struct scsi_read_capacity_data_16 *)rcap; 2106 2107 scsi_read_capacity_16(&ccb->csio, 2108 /*retries*/ 4, 2109 /*cbfcnp*/ dadone, 2110 /*tag_action*/ MSG_SIMPLE_Q_TAG, 2111 /*lba*/ 0, 2112 /*reladr*/ 0, 2113 /*pmi*/ 0, 2114 rcaplong, 2115 /*sense_len*/ SSD_FULL_SIZE, 2116 /*timeout*/ 60000); 2117 ccb->ccb_h.ccb_bio = NULL; 2118 2119 error = cam_periph_runccb(ccb, daerror, 2120 /*cam_flags*/CAM_RETRY_SELTO, 2121 /*sense_flags*/SF_RETRY_UA, 2122 &softc->device_stats); 2123 2124 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2125 cam_release_devq(ccb->ccb_h.path, 2126 /*relsim_flags*/0, 2127 /*reduction*/0, 2128 /*timeout*/0, 2129 /*getcount_only*/0); 2130 2131 if (error == 0) { 2132 block_len = scsi_4btoul(rcaplong->length); 2133 maxsector = scsi_8btou64(rcaplong->addr); 2134 } 2135 2136 done: 2137 2138 if (error == 0) 2139 dasetgeom(periph, block_len, maxsector); 2140 2141 xpt_release_ccb(ccb); 2142 2143 kfree(rcap, M_SCSIDA); 2144 2145 return (error); 2146 } 2147 2148 static void 2149 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2150 { 2151 struct ccb_calc_geometry ccg; 2152 struct da_softc *softc; 2153 struct disk_params *dp; 2154 2155 softc = (struct da_softc *)periph->softc; 2156 2157 dp = &softc->params; 2158 dp->secsize = block_len; 2159 dp->sectors = maxsector + 1; 2160 /* 2161 * Have the controller provide us with a geometry 2162 * for this disk. The only time the geometry 2163 * matters is when we boot and the controller 2164 * is the only one knowledgeable enough to come 2165 * up with something that will make this a bootable 2166 * device. 2167 */ 2168 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 2169 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2170 ccg.block_size = dp->secsize; 2171 ccg.volume_size = dp->sectors; 2172 ccg.heads = 0; 2173 ccg.secs_per_track = 0; 2174 ccg.cylinders = 0; 2175 xpt_action((union ccb*)&ccg); 2176 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2177 /* 2178 * We don't know what went wrong here- but just pick 2179 * a geometry so we don't have nasty things like divide 2180 * by zero. 2181 */ 2182 dp->heads = 255; 2183 dp->secs_per_track = 255; 2184 dp->cylinders = dp->sectors / (255 * 255); 2185 if (dp->cylinders == 0) { 2186 dp->cylinders = 1; 2187 } 2188 } else { 2189 dp->heads = ccg.heads; 2190 dp->secs_per_track = ccg.secs_per_track; 2191 dp->cylinders = ccg.cylinders; 2192 } 2193 } 2194 2195 static void 2196 dasendorderedtag(void *arg) 2197 { 2198 struct da_softc *softc = arg; 2199 2200 if (da_send_ordered) { 2201 if ((softc->ordered_tag_count == 0) 2202 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2203 softc->flags |= DA_FLAG_NEED_OTAG; 2204 } 2205 if (softc->outstanding_cmds > 0) 2206 softc->flags &= ~DA_FLAG_WENT_IDLE; 2207 2208 softc->ordered_tag_count = 0; 2209 } 2210 /* Queue us up again */ 2211 callout_reset(&softc->sendordered_c, 2212 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 2213 dasendorderedtag, softc); 2214 } 2215 2216 /* 2217 * Step through all DA peripheral drivers, and if the device is still open, 2218 * sync the disk cache to physical media. 2219 */ 2220 static void 2221 dashutdown(void * arg, int howto) 2222 { 2223 struct cam_periph *periph; 2224 struct da_softc *softc; 2225 2226 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2227 union ccb ccb; 2228 2229 cam_periph_lock(periph); 2230 softc = (struct da_softc *)periph->softc; 2231 2232 /* 2233 * We only sync the cache if the drive is still open, and 2234 * if the drive is capable of it.. 2235 */ 2236 if (((softc->flags & DA_FLAG_OPEN) == 0) 2237 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) { 2238 cam_periph_unlock(periph); 2239 continue; 2240 } 2241 2242 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2243 2244 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2245 scsi_synchronize_cache(&ccb.csio, 2246 /*retries*/1, 2247 /*cbfcnp*/dadone, 2248 MSG_SIMPLE_Q_TAG, 2249 /*begin_lba*/0, /* whole disk */ 2250 /*lb_count*/0, 2251 SSD_FULL_SIZE, 2252 60 * 60 * 1000); 2253 2254 xpt_polled_action(&ccb); 2255 2256 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2257 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2258 CAM_SCSI_STATUS_ERROR) 2259 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2260 int error_code, sense_key, asc, ascq; 2261 2262 scsi_extract_sense(&ccb.csio.sense_data, 2263 &error_code, &sense_key, 2264 &asc, &ascq); 2265 2266 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2267 scsi_sense_print(&ccb.csio); 2268 } else { 2269 xpt_print(periph->path, "Synchronize " 2270 "cache failed, status == 0x%x, scsi status " 2271 "== 0x%x\n", ccb.ccb_h.status, 2272 ccb.csio.scsi_status); 2273 } 2274 } 2275 2276 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2277 cam_release_devq(ccb.ccb_h.path, 2278 /*relsim_flags*/0, 2279 /*reduction*/0, 2280 /*timeout*/0, 2281 /*getcount_only*/0); 2282 2283 cam_periph_unlock(periph); 2284 } 2285 } 2286 2287 #else /* !_KERNEL */ 2288 2289 /* 2290 * XXX This is only left out of the kernel build to silence warnings. If, 2291 * for some reason this function is used in the kernel, the ifdefs should 2292 * be moved so it is included both in the kernel and userland. 2293 */ 2294 void 2295 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2296 void (*cbfcnp)(struct cam_periph *, union ccb *), 2297 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2298 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2299 u_int32_t timeout) 2300 { 2301 struct scsi_format_unit *scsi_cmd; 2302 2303 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2304 scsi_cmd->opcode = FORMAT_UNIT; 2305 scsi_cmd->byte2 = byte2; 2306 scsi_ulto2b(ileave, scsi_cmd->interleave); 2307 2308 cam_fill_csio(csio, 2309 retries, 2310 cbfcnp, 2311 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2312 tag_action, 2313 data_ptr, 2314 dxfer_len, 2315 sense_len, 2316 sizeof(*scsi_cmd), 2317 timeout); 2318 } 2319 2320 #endif /* _KERNEL */ 2321