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 1.55 2008/03/13 22:10:20 swildner 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 #endif /* _KERNEL */ 42 43 #include <sys/devicestat.h> 44 #include <sys/conf.h> 45 #ifdef _KERNEL 46 #include <sys/disk.h> 47 #include <sys/dtype.h> 48 #include <sys/eventhandler.h> 49 #include <sys/malloc.h> 50 #include <sys/cons.h> 51 #include <sys/proc.h> 52 #endif 53 #include <sys/buf2.h> 54 #ifdef _KERNEL 55 #include <sys/thread2.h> 56 #endif 57 58 #include <machine/md_var.h> 59 60 #ifdef _KERNEL 61 #include <vm/vm.h> 62 #include <vm/pmap.h> 63 #endif 64 65 #ifndef _KERNEL 66 #include <stdio.h> 67 #include <string.h> 68 #endif /* _KERNEL */ 69 70 #include "../cam.h" 71 #include "../cam_ccb.h" 72 #include "../cam_extend.h" 73 #include "../cam_periph.h" 74 #include "../cam_xpt_periph.h" 75 76 #include "scsi_message.h" 77 78 #ifndef _KERNEL 79 #include "scsi_da.h" 80 #endif /* !_KERNEL */ 81 82 #ifdef _KERNEL 83 typedef enum { 84 DA_STATE_PROBE, 85 DA_STATE_PROBE2, 86 DA_STATE_NORMAL 87 } da_state; 88 89 typedef enum { 90 DA_FLAG_PACK_INVALID = 0x001, 91 DA_FLAG_NEW_PACK = 0x002, 92 DA_FLAG_PACK_LOCKED = 0x004, 93 DA_FLAG_PACK_REMOVABLE = 0x008, 94 DA_FLAG_TAGGED_QUEUING = 0x010, 95 DA_FLAG_NEED_OTAG = 0x020, 96 DA_FLAG_WENT_IDLE = 0x040, 97 DA_FLAG_RETRY_UA = 0x080, 98 DA_FLAG_OPEN = 0x100, 99 DA_FLAG_SCTX_INIT = 0x200 100 } da_flags; 101 102 typedef enum { 103 DA_Q_NONE = 0x00, 104 DA_Q_NO_SYNC_CACHE = 0x01, 105 DA_Q_NO_6_BYTE = 0x02, 106 DA_Q_NO_PREVENT = 0x04 107 } da_quirks; 108 109 typedef enum { 110 DA_CCB_PROBE = 0x01, 111 DA_CCB_PROBE2 = 0x02, 112 DA_CCB_BUFFER_IO = 0x03, 113 DA_CCB_WAITING = 0x04, 114 DA_CCB_DUMP = 0x05, 115 DA_CCB_TYPE_MASK = 0x0F, 116 DA_CCB_RETRY_UA = 0x10 117 } da_ccb_state; 118 119 /* Offsets into our private area for storing information */ 120 #define ccb_state ppriv_field0 121 #define ccb_bio ppriv_ptr1 122 123 struct disk_params { 124 u_int8_t heads; 125 u_int32_t cylinders; 126 u_int8_t secs_per_track; 127 u_int32_t secsize; /* Number of bytes/sector */ 128 u_int64_t sectors; /* total number sectors */ 129 }; 130 131 struct da_softc { 132 struct bio_queue_head bio_queue; 133 struct devstat device_stats; 134 SLIST_ENTRY(da_softc) links; 135 LIST_HEAD(, ccb_hdr) pending_ccbs; 136 da_state state; 137 da_flags flags; 138 da_quirks quirks; 139 int minimum_cmd_size; 140 int ordered_tag_count; 141 int outstanding_cmds; 142 struct disk_params params; 143 struct disk disk; 144 union ccb saved_ccb; 145 struct task sysctl_task; 146 struct sysctl_ctx_list sysctl_ctx; 147 struct sysctl_oid *sysctl_tree; 148 }; 149 150 struct da_quirk_entry { 151 struct scsi_inquiry_pattern inq_pat; 152 da_quirks quirks; 153 }; 154 155 static const char quantum[] = "QUANTUM"; 156 static const char microp[] = "MICROP"; 157 158 static struct da_quirk_entry da_quirk_table[] = 159 { 160 /* SPI, FC devices */ 161 { 162 /* 163 * Fujitsu M2513A MO drives. 164 * Tested devices: M2513A2 firmware versions 1200 & 1300. 165 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 166 * Reported by: W.Scholten <whs@xs4all.nl> 167 */ 168 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 169 /*quirks*/ DA_Q_NO_SYNC_CACHE 170 }, 171 { 172 /* See above. */ 173 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 174 /*quirks*/ DA_Q_NO_SYNC_CACHE 175 }, 176 { 177 /* 178 * This particular Fujitsu drive doesn't like the 179 * synchronize cache command. 180 * Reported by: Tom Jackson <toj@gorilla.net> 181 */ 182 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 183 /*quirks*/ DA_Q_NO_SYNC_CACHE 184 }, 185 { 186 /* 187 * This drive doesn't like the synchronize cache command 188 * either. Reported by: Matthew Jacob <mjacob@feral.com> 189 * in NetBSD PR kern/6027, August 24, 1998. 190 */ 191 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 192 /*quirks*/ DA_Q_NO_SYNC_CACHE 193 }, 194 { 195 /* 196 * This drive doesn't like the synchronize cache command 197 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 198 * (PR 8882). 199 */ 200 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 201 /*quirks*/ DA_Q_NO_SYNC_CACHE 202 }, 203 { 204 /* 205 * Doesn't like the synchronize cache command. 206 * Reported by: Blaz Zupan <blaz@gold.amis.net> 207 */ 208 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 209 /*quirks*/ DA_Q_NO_SYNC_CACHE 210 }, 211 { 212 /* 213 * Doesn't like the synchronize cache command. 214 * Reported by: Blaz Zupan <blaz@gold.amis.net> 215 */ 216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 217 /*quirks*/ DA_Q_NO_SYNC_CACHE 218 }, 219 { 220 /* 221 * Doesn't like the synchronize cache command. 222 */ 223 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 224 /*quirks*/ DA_Q_NO_SYNC_CACHE 225 }, 226 { 227 /* 228 * Doesn't like the synchronize cache command. 229 * Reported by: walter@pelissero.de 230 */ 231 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"}, 232 /*quirks*/ DA_Q_NO_SYNC_CACHE 233 }, 234 { 235 /* 236 * Doesn't work correctly with 6 byte reads/writes. 237 * Returns illegal request, and points to byte 9 of the 238 * 6-byte CDB. 239 * Reported by: Adam McDougall <bsdx@spawnet.com> 240 */ 241 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 242 /*quirks*/ DA_Q_NO_6_BYTE 243 }, 244 { 245 /* See above. */ 246 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 247 /*quirks*/ DA_Q_NO_6_BYTE 248 }, 249 { 250 /* 251 * Doesn't like the synchronize cache command. 252 * Reported by: walter@pelissero.de 253 */ 254 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"}, 255 /*quirks*/ DA_Q_NO_SYNC_CACHE 256 }, 257 { 258 /* 259 * The CISS RAID controllers do not support SYNC_CACHE 260 */ 261 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 262 /*quirks*/ DA_Q_NO_SYNC_CACHE 263 }, 264 /* USB mass storage devices supported by umass(4) */ 265 { 266 /* 267 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 268 * PR: kern/51675 269 */ 270 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 271 /*quirks*/ DA_Q_NO_SYNC_CACHE 272 }, 273 { 274 /* 275 * Power Quotient Int. (PQI) USB flash key 276 * PR: kern/53067 277 */ 278 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 279 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 280 }, 281 { 282 /* 283 * Creative Nomad MUVO mp3 player (USB) 284 * PR: kern/53094 285 */ 286 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 287 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 288 }, 289 { 290 /* 291 * Jungsoft NEXDISK USB flash key 292 * PR: kern/54737 293 */ 294 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 295 /*quirks*/ DA_Q_NO_SYNC_CACHE 296 }, 297 { 298 /* 299 * FreeDik USB Mini Data Drive 300 * PR: kern/54786 301 */ 302 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 303 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 304 }, 305 { 306 /* 307 * Sigmatel USB Flash MP3 Player 308 * PR: kern/57046 309 */ 310 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 311 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 312 }, 313 { 314 /* 315 * Neuros USB Digital Audio Computer 316 * PR: kern/63645 317 */ 318 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 319 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 320 }, 321 { 322 /* 323 * SEAGRAND NP-900 MP3 Player 324 * PR: kern/64563 325 */ 326 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 327 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 328 }, 329 { 330 /* 331 * iRiver iFP MP3 player (with UMS Firmware) 332 * PR: kern/54881, i386/63941, kern/66124 333 */ 334 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 335 /*quirks*/ DA_Q_NO_SYNC_CACHE 336 }, 337 { 338 /* 339 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 340 * PR: kern/70158 341 */ 342 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"}, 343 /*quirks*/ DA_Q_NO_SYNC_CACHE 344 }, 345 { 346 /* 347 * ZICPlay USB MP3 Player with FM 348 * PR: kern/75057 349 */ 350 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"}, 351 /*quirks*/ DA_Q_NO_SYNC_CACHE 352 }, 353 { 354 /* 355 * TEAC USB floppy mechanisms 356 */ 357 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"}, 358 /*quirks*/ DA_Q_NO_SYNC_CACHE 359 }, 360 { 361 /* 362 * Kingston DataTraveler II+ USB Pen-Drive. 363 * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org> 364 */ 365 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", 366 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 367 }, 368 { 369 /* 370 * Motorola E398 Mobile Phone (TransFlash memory card). 371 * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl> 372 * PR: usb/89889 373 */ 374 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone", 375 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 376 }, 377 { 378 /* 379 * Qware BeatZkey! Pro 380 * PR: usb/79164 381 */ 382 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE", 383 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 384 }, 385 { 386 /* 387 * Time DPA20B 1GB MP3 Player 388 * PR: usb/81846 389 */ 390 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*", 391 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 392 }, 393 { 394 /* 395 * Samsung USB key 128Mb 396 * PR: usb/90081 397 */ 398 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb", 399 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 400 }, 401 { 402 /* 403 * Kingston DataTraveler 2.0 USB Flash memory. 404 * PR: usb/89196 405 */ 406 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", 407 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 408 }, 409 { 410 /* 411 * Creative MUVO Slim mp3 player (USB) 412 * PR: usb/86131 413 */ 414 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim", 415 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 416 }, 417 { 418 /* 419 * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3) 420 * PR: usb/80487 421 */ 422 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK", 423 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 424 }, 425 { 426 /* 427 * SanDisk Micro Cruzer 128MB 428 * PR: usb/75970 429 */ 430 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer", 431 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 432 }, 433 { 434 /* 435 * TOSHIBA TransMemory USB sticks 436 * PR: kern/94660 437 */ 438 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory", 439 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 440 }, 441 { 442 /* 443 * PNY USB Flash keys 444 * PR: usb/75578, usb/72344, usb/65436 445 */ 446 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*", 447 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 448 }, 449 { 450 /* 451 * Genesys 6-in-1 Card Reader 452 * PR: usb/94647 453 */ 454 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*", 455 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 456 }, 457 { 458 /* 459 * Rekam Digital CAMERA 460 * PR: usb/98713 461 */ 462 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*", 463 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 464 }, 465 { 466 /* 467 * iRiver H10 MP3 player 468 * PR: usb/102547 469 */ 470 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*", 471 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 472 }, 473 { 474 /* 475 * iRiver U10 MP3 player 476 * PR: usb/92306 477 */ 478 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*", 479 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 480 }, 481 { 482 /* 483 * X-Micro Flash Disk 484 * PR: usb/96901 485 */ 486 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk", 487 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 488 }, 489 { 490 /* 491 * EasyMP3 EM732X USB 2.0 Flash MP3 Player 492 * PR: usb/96546 493 */ 494 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*", 495 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 496 }, 497 { 498 /* 499 * Denver MP3 player 500 * PR: usb/107101 501 */ 502 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER", 503 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 504 }, 505 { 506 /* 507 * Philips USB Key Audio KEY013 508 * PR: usb/68412 509 */ 510 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"}, 511 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT 512 }, 513 { 514 /* 515 * JNC MP3 Player 516 * PR: usb/94439 517 */ 518 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*", 519 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 520 }, 521 { 522 /* 523 * SAMSUNG MP0402H 524 * PR: usb/108427 525 */ 526 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"}, 527 /*quirks*/ DA_Q_NO_SYNC_CACHE 528 }, 529 { 530 /* 531 * I/O Magic USB flash - Giga Bank 532 * PR: usb/108810 533 */ 534 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"}, 535 /*quirks*/ DA_Q_NO_SYNC_CACHE 536 }, 537 { 538 /* 539 * JoyFly 128mb USB Flash Drive 540 * PR: 96133 541 */ 542 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*", 543 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 544 }, 545 { 546 /* 547 * ChipsBnk usb stick 548 * PR: 103702 549 */ 550 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*", 551 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 552 }, 553 { 554 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*", 555 "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 556 }, 557 { 558 /* 559 * USB 2.0 (HS) Flash Disk MP3 player 560 */ 561 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk", "*"}, 562 /*quirks*/ DA_Q_NO_SYNC_CACHE 563 }, 564 }; 565 566 static d_open_t daopen; 567 static d_close_t daclose; 568 static d_strategy_t dastrategy; 569 static d_dump_t dadump; 570 static periph_init_t dainit; 571 static void daasync(void *callback_arg, u_int32_t code, 572 struct cam_path *path, void *arg); 573 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 574 static periph_ctor_t daregister; 575 static periph_dtor_t dacleanup; 576 static periph_start_t dastart; 577 static periph_oninv_t daoninvalidate; 578 static void dadone(struct cam_periph *periph, 579 union ccb *done_ccb); 580 static int daerror(union ccb *ccb, u_int32_t cam_flags, 581 u_int32_t sense_flags); 582 static void daprevent(struct cam_periph *periph, int action); 583 static int dagetcapacity(struct cam_periph *periph); 584 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 585 uint64_t maxsector); 586 587 static timeout_t dasendorderedtag; 588 static void dashutdown(void *arg, int howto); 589 590 #ifndef DA_DEFAULT_TIMEOUT 591 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 592 #endif 593 594 #ifndef DA_DEFAULT_RETRY 595 #define DA_DEFAULT_RETRY 4 596 #endif 597 598 #ifndef DA_DEFAULT_SEND_ORDERED 599 #define DA_DEFAULT_SEND_ORDERED 1 600 #endif 601 602 static int da_retry_count = DA_DEFAULT_RETRY; 603 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 604 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED; 605 static struct callout dasendorderedtag_ch; 606 607 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 608 "CAM Direct Access Disk driver"); 609 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 610 &da_retry_count, 0, "Normal I/O retry count"); 611 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 612 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 613 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 614 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 615 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW, 616 &da_send_ordered, 0, "Send Ordered Tags"); 617 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered); 618 619 /* 620 * DA_ORDEREDTAG_INTERVAL determines how often, relative 621 * to the default timeout, we check to see whether an ordered 622 * tagged transaction is appropriate to prevent simple tag 623 * starvation. Since we'd like to ensure that there is at least 624 * 1/2 of the timeout length left for a starved transaction to 625 * complete after we've sent an ordered tag, we must poll at least 626 * four times in every timeout period. This takes care of the worst 627 * case where a starved transaction starts during an interval that 628 * meets the requirement "don't send an ordered tag" test so it takes 629 * us two intervals to determine that a tag must be sent. 630 */ 631 #ifndef DA_ORDEREDTAG_INTERVAL 632 #define DA_ORDEREDTAG_INTERVAL 4 633 #endif 634 635 static struct periph_driver dadriver = 636 { 637 dainit, "da", 638 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 639 }; 640 641 PERIPHDRIVER_DECLARE(da, dadriver); 642 643 static struct dev_ops da_ops = { 644 { "da", DA_CDEV_MAJOR, D_DISK }, 645 .d_open = daopen, 646 .d_close = daclose, 647 .d_read = physread, 648 .d_write = physwrite, 649 .d_strategy = dastrategy, 650 .d_dump = dadump 651 }; 652 653 static SLIST_HEAD(,da_softc) softc_list; 654 static struct extend_array *daperiphs; 655 656 static int 657 daopen(struct dev_open_args *ap) 658 { 659 cdev_t dev = ap->a_head.a_dev; 660 struct cam_periph *periph; 661 struct da_softc *softc; 662 struct disk_info info; 663 int unit; 664 int error; 665 666 unit = dkunit(dev); 667 crit_enter(); 668 periph = cam_extend_get(daperiphs, unit); 669 if (periph == NULL) { 670 crit_exit(); 671 return (ENXIO); 672 } 673 674 softc = (struct da_softc *)periph->softc; 675 676 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 677 ("daopen: dev=%s (unit %d)\n", devtoname(dev), 678 unit)); 679 680 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 681 crit_exit(); 682 return (error); /* error code from tsleep */ 683 } 684 685 if ((softc->flags & DA_FLAG_OPEN) == 0) { 686 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 687 crit_exit(); 688 return(ENXIO); 689 } 690 softc->flags |= DA_FLAG_OPEN; 691 } 692 693 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 694 /* Invalidate our pack information. */ 695 disk_invalidate(&softc->disk); 696 softc->flags &= ~DA_FLAG_PACK_INVALID; 697 } 698 crit_exit(); 699 700 error = dagetcapacity(periph); 701 702 #if 0 703 /* Do a read capacity */ 704 { 705 struct scsi_read_capacity_data *rcap; 706 union ccb *ccb; 707 708 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 709 710 ccb = cam_periph_getccb(periph, /*priority*/1); 711 scsi_read_capacity(&ccb->csio, 712 /*retries*/1, 713 /*cbfncp*/dadone, 714 MSG_SIMPLE_Q_TAG, 715 rcap, 716 SSD_FULL_SIZE, 717 /*timeout*/60000); 718 ccb->ccb_h.ccb_bio = NULL; 719 720 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 721 /*sense_flags*/SF_RETRY_UA | 722 SF_RETRY_SELTO, 723 &softc->device_stats); 724 725 xpt_release_ccb(ccb); 726 727 if (error == 0) { 728 dasetgeom(periph, rcap); 729 } 730 731 kfree(rcap, M_TEMP); 732 } 733 #endif 734 735 if (error == 0) { 736 struct ccb_getdev cgd; 737 738 /* Build disk information structure */ 739 bzero(&info, sizeof(info)); 740 info.d_type = DTYPE_SCSI; 741 742 /* 743 * Grab the inquiry data to get the vendor and product names. 744 * Put them in the typename and packname for the label. 745 */ 746 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 747 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 748 xpt_action((union ccb *)&cgd); 749 750 #if 0 751 strncpy(label->d_typename, cgd.inq_data.vendor, 752 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 753 strncpy(label->d_packname, cgd.inq_data.product, 754 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 755 #endif 756 757 /* 758 * Mandatory fields 759 */ 760 info.d_media_blksize = softc->params.secsize; 761 info.d_media_blocks = softc->params.sectors; 762 info.d_media_size = 0; 763 764 /* 765 * Optional fields 766 */ 767 info.d_secpertrack = softc->params.secs_per_track; 768 info.d_nheads = softc->params.heads; 769 info.d_ncylinders = softc->params.cylinders; 770 info.d_secpercyl = softc->params.heads * 771 softc->params.secs_per_track; 772 disk_setdiskinfo(&softc->disk, &info); 773 774 /* 775 * Check to see whether or not the blocksize is set yet. 776 * If it isn't, set it and then clear the blocksize 777 * unavailable flag for the device statistics. 778 */ 779 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 780 softc->device_stats.block_size = softc->params.secsize; 781 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 782 } 783 } 784 785 if (error == 0) { 786 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 787 (softc->quirks & DA_Q_NO_PREVENT) == 0) 788 daprevent(periph, PR_PREVENT); 789 } else { 790 softc->flags &= ~DA_FLAG_OPEN; 791 cam_periph_release(periph); 792 } 793 cam_periph_unlock(periph); 794 return (error); 795 } 796 797 static int 798 daclose(struct dev_close_args *ap) 799 { 800 cdev_t dev = ap->a_head.a_dev; 801 struct cam_periph *periph; 802 struct da_softc *softc; 803 int unit; 804 int error; 805 806 unit = dkunit(dev); 807 periph = cam_extend_get(daperiphs, unit); 808 if (periph == NULL) 809 return (ENXIO); 810 811 softc = (struct da_softc *)periph->softc; 812 813 if ((error = cam_periph_lock(periph, 0)) != 0) { 814 return (error); /* error code from tsleep */ 815 } 816 817 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 818 union ccb *ccb; 819 820 ccb = cam_periph_getccb(periph, /*priority*/1); 821 822 scsi_synchronize_cache(&ccb->csio, 823 /*retries*/1, 824 /*cbfcnp*/dadone, 825 MSG_SIMPLE_Q_TAG, 826 /*begin_lba*/0,/* Cover the whole disk */ 827 /*lb_count*/0, 828 SSD_FULL_SIZE, 829 5 * 60 * 1000); 830 831 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 832 /*sense_flags*/SF_RETRY_UA, 833 &softc->device_stats); 834 835 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 836 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 837 CAM_SCSI_STATUS_ERROR) { 838 int asc, ascq; 839 int sense_key, error_code; 840 841 scsi_extract_sense(&ccb->csio.sense_data, 842 &error_code, 843 &sense_key, 844 &asc, &ascq); 845 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 846 scsi_sense_print(&ccb->csio); 847 } else { 848 xpt_print_path(periph->path); 849 kprintf("Synchronize cache failed, status " 850 "== 0x%x, scsi status == 0x%x\n", 851 ccb->csio.ccb_h.status, 852 ccb->csio.scsi_status); 853 } 854 } 855 856 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 857 cam_release_devq(ccb->ccb_h.path, 858 /*relsim_flags*/0, 859 /*reduction*/0, 860 /*timeout*/0, 861 /*getcount_only*/0); 862 863 xpt_release_ccb(ccb); 864 865 } 866 867 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 868 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 869 daprevent(periph, PR_ALLOW); 870 /* 871 * If we've got removeable media, mark the blocksize as 872 * unavailable, since it could change when new media is 873 * inserted. 874 */ 875 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 876 } 877 878 /* 879 * Don't compound any ref counting software bugs with more. 880 */ 881 if (softc->flags & DA_FLAG_OPEN) { 882 softc->flags &= ~DA_FLAG_OPEN; 883 cam_periph_release(periph); 884 } else { 885 xpt_print_path(periph->path); 886 kprintf("daclose() called on an already closed device!\n"); 887 } 888 cam_periph_unlock(periph); 889 return (0); 890 } 891 892 /* 893 * Actually translate the requested transfer into one the physical driver 894 * can understand. The transfer is described by a buf and will include 895 * only one physical transfer. 896 */ 897 static int 898 dastrategy(struct dev_strategy_args *ap) 899 { 900 cdev_t dev = ap->a_head.a_dev; 901 struct bio *bio = ap->a_bio; 902 struct buf *bp = bio->bio_buf; 903 struct cam_periph *periph; 904 struct da_softc *softc; 905 u_int unit; 906 u_int part; 907 908 unit = dkunit(dev); 909 part = dkpart(dev); 910 periph = cam_extend_get(daperiphs, unit); 911 if (periph == NULL) { 912 bp->b_error = ENXIO; 913 goto bad; 914 } 915 softc = (struct da_softc *)periph->softc; 916 #if 0 917 /* 918 * check it's not too big a transfer for our adapter 919 */ 920 scsi_minphys(bp, &sd_switch); 921 #endif 922 923 /* 924 * Mask interrupts so that the pack cannot be invalidated until 925 * after we are in the queue. Otherwise, we might not properly 926 * clean up one of the buffers. 927 */ 928 crit_enter(); 929 930 /* 931 * If the device has been made invalid, error out 932 */ 933 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 934 crit_exit(); 935 bp->b_error = ENXIO; 936 goto bad; 937 } 938 939 /* 940 * Place it in the queue of disk activities for this disk 941 */ 942 bioqdisksort(&softc->bio_queue, bio); 943 944 crit_exit(); 945 946 /* 947 * Schedule ourselves for performing the work. 948 */ 949 xpt_schedule(periph, /* XXX priority */1); 950 951 return(0); 952 bad: 953 bp->b_flags |= B_ERROR; 954 955 /* 956 * Correctly set the buf to indicate a completed xfer 957 */ 958 bp->b_resid = bp->b_bcount; 959 biodone(bio); 960 return(0); 961 } 962 963 static int 964 dadump(struct dev_dump_args *ap) 965 { 966 cdev_t dev = ap->a_head.a_dev; 967 struct cam_periph *periph; 968 struct da_softc *softc; 969 u_int unit; 970 long blkcnt; 971 vm_paddr_t addr; 972 struct ccb_scsiio csio; 973 int dumppages = MAXDUMPPGS; 974 int i; 975 976 /* toss any characters present prior to dump */ 977 while (cncheckc() != -1) 978 ; 979 980 unit = dkunit(dev); 981 periph = cam_extend_get(daperiphs, unit); 982 if (periph == NULL) { 983 return (ENXIO); 984 } 985 softc = (struct da_softc *)periph->softc; 986 987 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 988 return (ENXIO); 989 990 addr = 0; /* starting address */ 991 blkcnt = howmany(PAGE_SIZE, ap->a_secsize); 992 993 while (ap->a_count > 0) { 994 caddr_t va = NULL; 995 996 if ((ap->a_count / blkcnt) < dumppages) 997 dumppages = ap->a_count / blkcnt; 998 999 for (i = 0; i < dumppages; ++i) { 1000 vm_paddr_t a = addr + (i * PAGE_SIZE); 1001 if (is_physical_memory(a)) 1002 va = pmap_kenter_temporary(trunc_page(a), i); 1003 else 1004 va = pmap_kenter_temporary(trunc_page(0), i); 1005 } 1006 1007 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1008 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1009 scsi_read_write(&csio, 1010 /*retries*/1, 1011 dadone, 1012 MSG_ORDERED_Q_TAG, 1013 /*read*/FALSE, 1014 /*byte2*/0, 1015 /*minimum_cmd_size*/ softc->minimum_cmd_size, 1016 ap->a_blkno, 1017 blkcnt * dumppages, 1018 /*data_ptr*/(u_int8_t *) va, 1019 /*dxfer_len*/blkcnt * ap->a_secsize * dumppages, 1020 /*sense_len*/SSD_FULL_SIZE, 1021 DA_DEFAULT_TIMEOUT * 1000); 1022 xpt_polled_action((union ccb *)&csio); 1023 1024 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1025 kprintf("Aborting dump due to I/O error.\n"); 1026 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1027 CAM_SCSI_STATUS_ERROR) 1028 scsi_sense_print(&csio); 1029 else 1030 kprintf("status == 0x%x, scsi status == 0x%x\n", 1031 csio.ccb_h.status, csio.scsi_status); 1032 return(EIO); 1033 } 1034 1035 if (dumpstatus(addr, (off_t)ap->a_count * softc->params.secsize) < 0) 1036 return (EINTR); 1037 1038 /* update block count */ 1039 ap->a_count -= blkcnt * dumppages; 1040 ap->a_blkno += blkcnt * dumppages; 1041 addr += PAGE_SIZE * dumppages; 1042 } 1043 1044 /* 1045 * Sync the disk cache contents to the physical media. 1046 */ 1047 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 1048 1049 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 1050 csio.ccb_h.ccb_state = DA_CCB_DUMP; 1051 scsi_synchronize_cache(&csio, 1052 /*retries*/1, 1053 /*cbfcnp*/dadone, 1054 MSG_SIMPLE_Q_TAG, 1055 /*begin_lba*/0,/* Cover the whole disk */ 1056 /*lb_count*/0, 1057 SSD_FULL_SIZE, 1058 5 * 60 * 1000); 1059 xpt_polled_action((union ccb *)&csio); 1060 1061 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1062 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 1063 CAM_SCSI_STATUS_ERROR) { 1064 int asc, ascq; 1065 int sense_key, error_code; 1066 1067 scsi_extract_sense(&csio.sense_data, 1068 &error_code, 1069 &sense_key, 1070 &asc, &ascq); 1071 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1072 scsi_sense_print(&csio); 1073 } else { 1074 xpt_print_path(periph->path); 1075 kprintf("Synchronize cache failed, status " 1076 "== 0x%x, scsi status == 0x%x\n", 1077 csio.ccb_h.status, csio.scsi_status); 1078 } 1079 } 1080 } 1081 return (0); 1082 } 1083 1084 static void 1085 dainit(void) 1086 { 1087 cam_status status; 1088 struct cam_path *path; 1089 1090 /* 1091 * Create our extend array for storing the devices we attach to. 1092 */ 1093 daperiphs = cam_extend_new(); 1094 SLIST_INIT(&softc_list); 1095 if (daperiphs == NULL) { 1096 kprintf("da: Failed to alloc extend array!\n"); 1097 return; 1098 } 1099 1100 callout_init(&dasendorderedtag_ch); 1101 1102 /* 1103 * Install a global async callback. This callback will 1104 * receive async callbacks like "new device found". 1105 */ 1106 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 1107 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1108 1109 if (status == CAM_REQ_CMP) { 1110 struct ccb_setasync csa; 1111 1112 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 1113 csa.ccb_h.func_code = XPT_SASYNC_CB; 1114 csa.event_enable = AC_FOUND_DEVICE; 1115 csa.callback = daasync; 1116 csa.callback_arg = NULL; 1117 xpt_action((union ccb *)&csa); 1118 status = csa.ccb_h.status; 1119 xpt_free_path(path); 1120 } 1121 1122 if (status != CAM_REQ_CMP) { 1123 kprintf("da: Failed to attach master async callback " 1124 "due to status 0x%x!\n", status); 1125 } else if (da_send_ordered) { 1126 1127 /* 1128 * Schedule a periodic event to occasionally send an 1129 * ordered tag to a device. 1130 */ 1131 callout_reset(&dasendorderedtag_ch, 1132 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1133 dasendorderedtag, NULL); 1134 1135 /* Register our shutdown event handler */ 1136 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1137 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1138 kprintf("dainit: shutdown event registration failed!\n"); 1139 } 1140 } 1141 1142 static void 1143 daoninvalidate(struct cam_periph *periph) 1144 { 1145 struct da_softc *softc; 1146 struct bio *q_bio; 1147 struct buf *q_bp; 1148 struct ccb_setasync csa; 1149 1150 softc = (struct da_softc *)periph->softc; 1151 1152 /* 1153 * De-register any async callbacks. 1154 */ 1155 xpt_setup_ccb(&csa.ccb_h, periph->path, 1156 /* priority */ 5); 1157 csa.ccb_h.func_code = XPT_SASYNC_CB; 1158 csa.event_enable = 0; 1159 csa.callback = daasync; 1160 csa.callback_arg = periph; 1161 xpt_action((union ccb *)&csa); 1162 1163 softc->flags |= DA_FLAG_PACK_INVALID; 1164 1165 /* 1166 * Use a critical section to keep the buffer queue from being 1167 * modified while we traverse it. 1168 */ 1169 crit_enter(); 1170 1171 /* 1172 * Return all queued I/O with ENXIO. 1173 * XXX Handle any transactions queued to the card 1174 * with XPT_ABORT_CCB. 1175 */ 1176 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ 1177 bioq_remove(&softc->bio_queue, q_bio); 1178 q_bp = q_bio->bio_buf; 1179 q_bp->b_resid = q_bp->b_bcount; 1180 q_bp->b_error = ENXIO; 1181 q_bp->b_flags |= B_ERROR; 1182 biodone(q_bio); 1183 } 1184 crit_exit(); 1185 1186 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1187 1188 xpt_print_path(periph->path); 1189 kprintf("lost device\n"); 1190 } 1191 1192 static void 1193 dacleanup(struct cam_periph *periph) 1194 { 1195 struct da_softc *softc; 1196 1197 softc = (struct da_softc *)periph->softc; 1198 1199 devstat_remove_entry(&softc->device_stats); 1200 cam_extend_release(daperiphs, periph->unit_number); 1201 xpt_print_path(periph->path); 1202 kprintf("removing device entry\n"); 1203 /* 1204 * If we can't free the sysctl tree, oh well... 1205 */ 1206 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1207 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1208 xpt_print_path(periph->path); 1209 kprintf("can't remove sysctl context\n"); 1210 } 1211 if (softc->disk.d_rawdev) { 1212 disk_destroy(&softc->disk); 1213 } 1214 kfree(softc, M_DEVBUF); 1215 } 1216 1217 static void 1218 daasync(void *callback_arg, u_int32_t code, 1219 struct cam_path *path, void *arg) 1220 { 1221 struct cam_periph *periph; 1222 1223 periph = (struct cam_periph *)callback_arg; 1224 switch (code) { 1225 case AC_FOUND_DEVICE: 1226 { 1227 struct ccb_getdev *cgd; 1228 cam_status status; 1229 1230 cgd = (struct ccb_getdev *)arg; 1231 if (cgd == NULL) 1232 break; 1233 1234 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1235 && SID_TYPE(&cgd->inq_data) != T_RBC 1236 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1237 break; 1238 1239 /* 1240 * Allocate a peripheral instance for 1241 * this device and start the probe 1242 * process. 1243 */ 1244 status = cam_periph_alloc(daregister, daoninvalidate, 1245 dacleanup, dastart, 1246 "da", CAM_PERIPH_BIO, 1247 cgd->ccb_h.path, daasync, 1248 AC_FOUND_DEVICE, cgd); 1249 1250 if (status != CAM_REQ_CMP 1251 && status != CAM_REQ_INPROG) 1252 kprintf("daasync: Unable to attach to new device " 1253 "due to status 0x%x\n", status); 1254 break; 1255 } 1256 case AC_SENT_BDR: 1257 case AC_BUS_RESET: 1258 { 1259 struct da_softc *softc; 1260 struct ccb_hdr *ccbh; 1261 1262 softc = (struct da_softc *)periph->softc; 1263 crit_enter(); 1264 /* 1265 * Don't fail on the expected unit attention 1266 * that will occur. 1267 */ 1268 softc->flags |= DA_FLAG_RETRY_UA; 1269 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le) 1270 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1271 crit_exit(); 1272 /* FALLTHROUGH*/ 1273 } 1274 default: 1275 cam_periph_async(periph, code, path, arg); 1276 break; 1277 } 1278 } 1279 1280 static void 1281 dasysctlinit(void *context, int pending) 1282 { 1283 struct cam_periph *periph; 1284 struct da_softc *softc; 1285 char tmpstr[80], tmpstr2[80]; 1286 1287 periph = (struct cam_periph *)context; 1288 softc = (struct da_softc *)periph->softc; 1289 1290 ksnprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1291 ksnprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1292 1293 sysctl_ctx_init(&softc->sysctl_ctx); 1294 softc->flags |= DA_FLAG_SCTX_INIT; 1295 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1296 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1297 CTLFLAG_RD, 0, tmpstr); 1298 if (softc->sysctl_tree == NULL) { 1299 kprintf("dasysctlinit: unable to allocate sysctl tree\n"); 1300 return; 1301 } 1302 1303 /* 1304 * Now register the sysctl handler, so the user can the value on 1305 * the fly. 1306 */ 1307 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1308 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1309 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1310 "Minimum CDB size"); 1311 } 1312 1313 static int 1314 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1315 { 1316 int error, value; 1317 1318 value = *(int *)arg1; 1319 1320 error = sysctl_handle_int(oidp, &value, 0, req); 1321 1322 if ((error != 0) 1323 || (req->newptr == NULL)) 1324 return (error); 1325 1326 /* 1327 * Acceptable values here are 6, 10 or 12, or 16. 1328 */ 1329 if (value < 6) 1330 value = 6; 1331 else if ((value > 6) 1332 && (value <= 10)) 1333 value = 10; 1334 else if ((value > 10) 1335 && (value <= 12)) 1336 value = 12; 1337 else if (value > 12) 1338 value = 16; 1339 1340 *(int *)arg1 = value; 1341 1342 return (0); 1343 } 1344 1345 static cam_status 1346 daregister(struct cam_periph *periph, void *arg) 1347 { 1348 struct da_softc *softc; 1349 struct ccb_setasync csa; 1350 struct ccb_pathinq cpi; 1351 struct ccb_getdev *cgd; 1352 char tmpstr[80]; 1353 caddr_t match; 1354 1355 cgd = (struct ccb_getdev *)arg; 1356 if (periph == NULL) { 1357 kprintf("daregister: periph was NULL!!\n"); 1358 return(CAM_REQ_CMP_ERR); 1359 } 1360 1361 if (cgd == NULL) { 1362 kprintf("daregister: no getdev CCB, can't register device\n"); 1363 return(CAM_REQ_CMP_ERR); 1364 } 1365 1366 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1367 LIST_INIT(&softc->pending_ccbs); 1368 softc->state = DA_STATE_PROBE; 1369 bioq_init(&softc->bio_queue); 1370 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1371 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1372 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1373 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1374 1375 periph->softc = softc; 1376 1377 cam_extend_set(daperiphs, periph->unit_number, periph); 1378 1379 /* 1380 * See if this device has any quirks. 1381 */ 1382 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1383 (caddr_t)da_quirk_table, 1384 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1385 sizeof(*da_quirk_table), scsi_inquiry_match); 1386 1387 if (match != NULL) 1388 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1389 else 1390 softc->quirks = DA_Q_NONE; 1391 1392 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1393 1394 /* Check if the SIM does not want 6 byte commands */ 1395 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1396 cpi.ccb_h.func_code = XPT_PATH_INQ; 1397 xpt_action((union ccb *)&cpi); 1398 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1399 softc->quirks |= DA_Q_NO_6_BYTE; 1400 1401 /* 1402 * RBC devices don't have to support READ(6), only READ(10). 1403 */ 1404 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1405 softc->minimum_cmd_size = 10; 1406 else 1407 softc->minimum_cmd_size = 6; 1408 1409 /* 1410 * Load the user's default, if any. 1411 */ 1412 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1413 periph->unit_number); 1414 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1415 1416 /* 1417 * 6, 10, 12, and 16 are the currently permissible values. 1418 */ 1419 if (softc->minimum_cmd_size < 6) 1420 softc->minimum_cmd_size = 6; 1421 else if ((softc->minimum_cmd_size > 6) 1422 && (softc->minimum_cmd_size <= 10)) 1423 softc->minimum_cmd_size = 10; 1424 else if ((softc->minimum_cmd_size > 10) 1425 && (softc->minimum_cmd_size <= 12)) 1426 softc->minimum_cmd_size = 12; 1427 else if (softc->minimum_cmd_size > 12) 1428 softc->minimum_cmd_size = 16; 1429 1430 /* 1431 * Block our timeout handler while we 1432 * add this softc to the dev list. 1433 */ 1434 crit_enter(); 1435 SLIST_INSERT_HEAD(&softc_list, softc, links); 1436 crit_exit(); 1437 1438 /* 1439 * The DA driver supports a blocksize, but 1440 * we don't know the blocksize until we do 1441 * a read capacity. So, set a flag to 1442 * indicate that the blocksize is 1443 * unavailable right now. We'll clear the 1444 * flag as soon as we've done a read capacity. 1445 */ 1446 devstat_add_entry(&softc->device_stats, "da", 1447 periph->unit_number, 0, 1448 DEVSTAT_BS_UNAVAILABLE, 1449 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1450 DEVSTAT_PRIORITY_DISK); 1451 1452 /* 1453 * Register this media as a disk 1454 */ 1455 disk_create(periph->unit_number, &softc->disk, &da_ops); 1456 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 1457 1458 /* 1459 * Add async callbacks for bus reset and 1460 * bus device reset calls. I don't bother 1461 * checking if this fails as, in most cases, 1462 * the system will function just fine without 1463 * them and the only alternative would be to 1464 * not attach the device on failure. 1465 */ 1466 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1467 csa.ccb_h.func_code = XPT_SASYNC_CB; 1468 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1469 csa.callback = daasync; 1470 csa.callback_arg = periph; 1471 xpt_action((union ccb *)&csa); 1472 /* 1473 * Lock this peripheral until we are setup. 1474 * This first call can't block 1475 */ 1476 cam_periph_lock(periph, 0); 1477 xpt_schedule(periph, /*priority*/5); 1478 1479 return(CAM_REQ_CMP); 1480 } 1481 1482 static void 1483 dastart(struct cam_periph *periph, union ccb *start_ccb) 1484 { 1485 struct da_softc *softc; 1486 1487 softc = (struct da_softc *)periph->softc; 1488 1489 1490 switch (softc->state) { 1491 case DA_STATE_NORMAL: 1492 { 1493 /* Pull a buffer from the queue and get going on it */ 1494 struct bio *bio; 1495 struct buf *bp; 1496 1497 /* 1498 * See if there is a buf with work for us to do.. 1499 */ 1500 crit_enter(); 1501 bio = bioq_first(&softc->bio_queue); 1502 if (periph->immediate_priority <= periph->pinfo.priority) { 1503 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1504 ("queuing for immediate ccb\n")); 1505 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1506 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1507 periph_links.sle); 1508 periph->immediate_priority = CAM_PRIORITY_NONE; 1509 crit_exit(); 1510 wakeup(&periph->ccb_list); 1511 } else if (bio == NULL) { 1512 crit_exit(); 1513 xpt_release_ccb(start_ccb); 1514 } else { 1515 u_int8_t tag_code; 1516 1517 bioq_remove(&softc->bio_queue, bio); 1518 bp = bio->bio_buf; 1519 1520 devstat_start_transaction(&softc->device_stats); 1521 1522 if ((bp->b_flags & B_ORDERED) != 0 1523 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1524 softc->flags &= ~DA_FLAG_NEED_OTAG; 1525 softc->ordered_tag_count++; 1526 tag_code = MSG_ORDERED_Q_TAG; 1527 } else { 1528 tag_code = MSG_SIMPLE_Q_TAG; 1529 } 1530 1531 KKASSERT(bio->bio_offset % softc->params.secsize == 0); 1532 1533 scsi_read_write(&start_ccb->csio, 1534 /*retries*/da_retry_count, 1535 dadone, 1536 tag_code, 1537 (bp->b_cmd == BUF_CMD_READ), 1538 /*byte2*/0, 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 /*sense_len*/SSD_FULL_SIZE, 1545 da_default_timeout * 1000); 1546 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1547 1548 /* 1549 * Block out any asyncronous callbacks 1550 * while we touch the pending ccb list. 1551 */ 1552 LIST_INSERT_HEAD(&softc->pending_ccbs, 1553 &start_ccb->ccb_h, periph_links.le); 1554 1555 softc->outstanding_cmds++; 1556 /* We expect a unit attention from this device */ 1557 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1558 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1559 softc->flags &= ~DA_FLAG_RETRY_UA; 1560 } 1561 1562 start_ccb->ccb_h.ccb_bio = bio; 1563 bio = bioq_first(&softc->bio_queue); 1564 crit_exit(); 1565 1566 xpt_action(start_ccb); 1567 } 1568 1569 if (bio != NULL) { 1570 /* Have more work to do, so ensure we stay scheduled */ 1571 xpt_schedule(periph, /* XXX priority */1); 1572 } 1573 break; 1574 } 1575 case DA_STATE_PROBE: 1576 { 1577 struct ccb_scsiio *csio; 1578 struct scsi_read_capacity_data *rcap; 1579 1580 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 1581 csio = &start_ccb->csio; 1582 scsi_read_capacity(csio, 1583 /*retries*/4, 1584 dadone, 1585 MSG_SIMPLE_Q_TAG, 1586 rcap, 1587 SSD_FULL_SIZE, 1588 /*timeout*/5000); 1589 start_ccb->ccb_h.ccb_bio = NULL; 1590 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1591 xpt_action(start_ccb); 1592 break; 1593 } 1594 case DA_STATE_PROBE2: 1595 { 1596 struct ccb_scsiio *csio; 1597 struct scsi_read_capacity_data_long *rcaplong; 1598 1599 rcaplong = (struct scsi_read_capacity_data_long *) 1600 kmalloc(sizeof(*rcaplong), M_TEMP, M_INTWAIT); 1601 if (rcaplong == NULL) { 1602 kprintf("dastart: Couldn't allocate read_capacity\n"); 1603 /* da_free_periph??? */ 1604 break; 1605 } 1606 csio = &start_ccb->csio; 1607 scsi_read_capacity_16(csio, 1608 /*retries*/ 4, 1609 /*cbfcnp*/ dadone, 1610 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1611 /*lba*/ 0, 1612 /*reladr*/ 0, 1613 /*pmi*/ 0, 1614 rcaplong, 1615 /*sense_len*/ SSD_FULL_SIZE, 1616 /*timeout*/ 60000); 1617 start_ccb->ccb_h.ccb_bio = NULL; 1618 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1619 xpt_action(start_ccb); 1620 break; 1621 } 1622 } 1623 } 1624 1625 static int 1626 cmd6workaround(union ccb *ccb) 1627 { 1628 struct scsi_rw_6 cmd6; 1629 struct scsi_rw_10 *cmd10; 1630 struct da_softc *softc; 1631 u_int8_t *cdb; 1632 int frozen; 1633 1634 cdb = ccb->csio.cdb_io.cdb_bytes; 1635 1636 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1637 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1638 (*cdb != READ_6 && *cdb != WRITE_6)) 1639 return 0; 1640 1641 xpt_print_path(ccb->ccb_h.path); 1642 kprintf("READ(6)/WRITE(6) not supported, " 1643 "increasing minimum_cmd_size to 10.\n"); 1644 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1645 softc->minimum_cmd_size = 10; 1646 1647 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1648 cmd10 = (struct scsi_rw_10 *)cdb; 1649 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1650 cmd10->byte2 = 0; 1651 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1652 cmd10->reserved = 0; 1653 scsi_ulto2b(cmd6.length, cmd10->length); 1654 cmd10->control = cmd6.control; 1655 ccb->csio.cdb_len = sizeof(*cmd10); 1656 1657 /* Requeue request, unfreezing queue if necessary */ 1658 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1659 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1660 xpt_action(ccb); 1661 if (frozen) { 1662 cam_release_devq(ccb->ccb_h.path, 1663 /*relsim_flags*/0, 1664 /*reduction*/0, 1665 /*timeout*/0, 1666 /*getcount_only*/0); 1667 } 1668 return (ERESTART); 1669 } 1670 1671 static void 1672 dadone(struct cam_periph *periph, union ccb *done_ccb) 1673 { 1674 struct da_softc *softc; 1675 struct ccb_scsiio *csio; 1676 1677 softc = (struct da_softc *)periph->softc; 1678 csio = &done_ccb->csio; 1679 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1680 case DA_CCB_BUFFER_IO: 1681 { 1682 struct buf *bp; 1683 struct bio *bio; 1684 1685 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1686 bp = bio->bio_buf; 1687 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1688 int error; 1689 int sf; 1690 1691 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1692 sf = SF_RETRY_UA; 1693 else 1694 sf = 0; 1695 1696 error = daerror(done_ccb, CAM_RETRY_SELTO, sf); 1697 if (error == ERESTART) { 1698 /* 1699 * A retry was scheuled, so 1700 * just return. 1701 */ 1702 return; 1703 } 1704 if (error != 0) { 1705 struct bio *q_bio; 1706 struct buf *q_bp; 1707 1708 crit_enter(); 1709 1710 if (error == ENXIO) { 1711 /* 1712 * Catastrophic error. Mark our pack as 1713 * invalid. 1714 */ 1715 /* XXX See if this is really a media 1716 * change first. 1717 */ 1718 xpt_print_path(periph->path); 1719 kprintf("Invalidating pack\n"); 1720 softc->flags |= DA_FLAG_PACK_INVALID; 1721 } 1722 1723 /* 1724 * return all queued I/O with EIO, so that 1725 * the client can retry these I/Os in the 1726 * proper order should it attempt to recover. 1727 */ 1728 while ((q_bio = bioq_first(&softc->bio_queue)) 1729 != NULL) { 1730 bioq_remove(&softc->bio_queue, q_bio); 1731 q_bp = q_bio->bio_buf; 1732 q_bp->b_resid = q_bp->b_bcount; 1733 q_bp->b_error = EIO; 1734 q_bp->b_flags |= B_ERROR; 1735 biodone(q_bio); 1736 } 1737 crit_exit(); 1738 bp->b_error = error; 1739 bp->b_resid = bp->b_bcount; 1740 bp->b_flags |= B_ERROR; 1741 } else { 1742 bp->b_resid = csio->resid; 1743 bp->b_error = 0; 1744 if (bp->b_resid != 0) 1745 bp->b_flags |= B_ERROR; 1746 } 1747 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1748 cam_release_devq(done_ccb->ccb_h.path, 1749 /*relsim_flags*/0, 1750 /*reduction*/0, 1751 /*timeout*/0, 1752 /*getcount_only*/0); 1753 } else { 1754 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1755 panic("REQ_CMP with QFRZN"); 1756 bp->b_resid = csio->resid; 1757 if (csio->resid > 0) 1758 bp->b_flags |= B_ERROR; 1759 } 1760 1761 /* 1762 * Block out any asyncronous callbacks 1763 * while we touch the pending ccb list. 1764 */ 1765 crit_enter(); 1766 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1767 softc->outstanding_cmds--; 1768 if (softc->outstanding_cmds == 0) 1769 softc->flags |= DA_FLAG_WENT_IDLE; 1770 crit_exit(); 1771 1772 devstat_end_transaction_buf(&softc->device_stats, bp); 1773 biodone(bio); 1774 break; 1775 } 1776 case DA_CCB_PROBE: 1777 case DA_CCB_PROBE2: 1778 { 1779 struct scsi_read_capacity_data *rdcap; 1780 struct scsi_read_capacity_data_long *rcaplong; 1781 char announce_buf[80]; 1782 1783 rdcap = NULL; 1784 rcaplong = NULL; 1785 if (softc->state == DA_STATE_PROBE) 1786 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1787 else 1788 rcaplong = (struct scsi_read_capacity_data_long *) 1789 csio->data_ptr; 1790 1791 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1792 struct disk_params *dp; 1793 uint32_t block_size; 1794 uint64_t maxsector; 1795 1796 if (softc->state == DA_STATE_PROBE) { 1797 block_size = scsi_4btoul(rdcap->length); 1798 maxsector = scsi_4btoul(rdcap->addr); 1799 1800 /* 1801 * According to SBC-2, if the standard 10 1802 * byte READ CAPACITY command returns 2^32, 1803 * we should issue the 16 byte version of 1804 * the command, since the device in question 1805 * has more sectors than can be represented 1806 * with the short version of the command. 1807 */ 1808 if (maxsector == 0xffffffff) { 1809 softc->state = DA_STATE_PROBE2; 1810 kfree(rdcap, M_TEMP); 1811 xpt_release_ccb(done_ccb); 1812 xpt_schedule(periph, /*priority*/5); 1813 return; 1814 } 1815 } else { 1816 block_size = scsi_4btoul(rcaplong->length); 1817 maxsector = scsi_8btou64(rcaplong->addr); 1818 } 1819 dasetgeom(periph, block_size, maxsector); 1820 dp = &softc->params; 1821 ksnprintf(announce_buf, sizeof(announce_buf), 1822 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1823 (uintmax_t) (((uintmax_t)dp->secsize * 1824 dp->sectors) / (1024*1024)), 1825 (uintmax_t)dp->sectors, 1826 dp->secsize, dp->heads, dp->secs_per_track, 1827 dp->cylinders); 1828 } else { 1829 int error; 1830 1831 announce_buf[0] = '\0'; 1832 1833 /* 1834 * Retry any UNIT ATTENTION type errors. They 1835 * are expected at boot. 1836 */ 1837 error = daerror(done_ccb, CAM_RETRY_SELTO, 1838 SF_RETRY_UA|SF_NO_PRINT); 1839 if (error == ERESTART) { 1840 /* 1841 * A retry was scheuled, so 1842 * just return. 1843 */ 1844 return; 1845 } else if (error != 0) { 1846 struct scsi_sense_data *sense; 1847 int asc, ascq; 1848 int sense_key, error_code; 1849 int have_sense; 1850 cam_status status; 1851 struct ccb_getdev cgd; 1852 1853 /* Don't wedge this device's queue */ 1854 status = done_ccb->ccb_h.status; 1855 if ((status & CAM_DEV_QFRZN) != 0) 1856 cam_release_devq(done_ccb->ccb_h.path, 1857 /*relsim_flags*/0, 1858 /*reduction*/0, 1859 /*timeout*/0, 1860 /*getcount_only*/0); 1861 1862 1863 xpt_setup_ccb(&cgd.ccb_h, 1864 done_ccb->ccb_h.path, 1865 /* priority */ 1); 1866 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1867 xpt_action((union ccb *)&cgd); 1868 1869 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1870 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1871 || ((status & CAM_AUTOSNS_VALID) == 0)) 1872 have_sense = FALSE; 1873 else 1874 have_sense = TRUE; 1875 1876 if (have_sense) { 1877 sense = &csio->sense_data; 1878 scsi_extract_sense(sense, &error_code, 1879 &sense_key, 1880 &asc, &ascq); 1881 } 1882 /* 1883 * Attach to anything that claims to be a 1884 * direct access or optical disk device, 1885 * as long as it doesn't return a "Logical 1886 * unit not supported" (0x25) error. 1887 */ 1888 if ((have_sense) && (asc != 0x25) 1889 && (error_code == SSD_CURRENT_ERROR)) { 1890 const char *sense_key_desc; 1891 const char *asc_desc; 1892 1893 scsi_sense_desc(sense_key, asc, ascq, 1894 &cgd.inq_data, 1895 &sense_key_desc, 1896 &asc_desc); 1897 ksnprintf(announce_buf, 1898 sizeof(announce_buf), 1899 "Attempt to query device " 1900 "size failed: %s, %s", 1901 sense_key_desc, 1902 asc_desc); 1903 } else { 1904 if (have_sense) 1905 scsi_sense_print( 1906 &done_ccb->csio); 1907 else { 1908 xpt_print_path(periph->path); 1909 kprintf("got CAM status %#x\n", 1910 done_ccb->ccb_h.status); 1911 } 1912 1913 xpt_print_path(periph->path); 1914 kprintf("fatal error, failed" 1915 " to attach to device\n"); 1916 1917 /* 1918 * Free up resources. 1919 */ 1920 cam_periph_invalidate(periph); 1921 } 1922 } 1923 } 1924 kfree(csio->data_ptr, M_TEMP); 1925 if (announce_buf[0] != '\0') { 1926 xpt_announce_periph(periph, announce_buf); 1927 /* 1928 * Create our sysctl variables, now that we know 1929 * we have successfully attached. 1930 */ 1931 taskqueue_enqueue(taskqueue_thread[mycpuid], 1932 &softc->sysctl_task); 1933 } 1934 softc->state = DA_STATE_NORMAL; 1935 /* 1936 * Since our peripheral may be invalidated by an error 1937 * above or an external event, we must release our CCB 1938 * before releasing the probe lock on the peripheral. 1939 * The peripheral will only go away once the last lock 1940 * is removed, and we need it around for the CCB release 1941 * operation. 1942 */ 1943 xpt_release_ccb(done_ccb); 1944 cam_periph_unlock(periph); 1945 return; 1946 } 1947 case DA_CCB_WAITING: 1948 { 1949 /* Caller will release the CCB */ 1950 wakeup(&done_ccb->ccb_h.cbfcnp); 1951 return; 1952 } 1953 case DA_CCB_DUMP: 1954 /* No-op. We're polling */ 1955 return; 1956 default: 1957 break; 1958 } 1959 xpt_release_ccb(done_ccb); 1960 } 1961 1962 static int 1963 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1964 { 1965 struct da_softc *softc; 1966 struct cam_periph *periph; 1967 int error; 1968 1969 periph = xpt_path_periph(ccb->ccb_h.path); 1970 softc = (struct da_softc *)periph->softc; 1971 1972 /* 1973 * Automatically detect devices that do not support 1974 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1975 */ 1976 error = 0; 1977 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1978 error = cmd6workaround(ccb); 1979 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1980 CAM_SCSI_STATUS_ERROR) 1981 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1982 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1983 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1984 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1985 int sense_key, error_code, asc, ascq; 1986 1987 scsi_extract_sense(&ccb->csio.sense_data, 1988 &error_code, &sense_key, &asc, &ascq); 1989 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1990 error = cmd6workaround(ccb); 1991 } 1992 if (error == ERESTART) 1993 return (ERESTART); 1994 1995 /* 1996 * XXX 1997 * Until we have a better way of doing pack validation, 1998 * don't treat UAs as errors. 1999 */ 2000 sense_flags |= SF_RETRY_UA; 2001 return(cam_periph_error(ccb, cam_flags, sense_flags, 2002 &softc->saved_ccb)); 2003 } 2004 2005 static void 2006 daprevent(struct cam_periph *periph, int action) 2007 { 2008 struct da_softc *softc; 2009 union ccb *ccb; 2010 int error; 2011 2012 softc = (struct da_softc *)periph->softc; 2013 2014 if (((action == PR_ALLOW) 2015 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 2016 || ((action == PR_PREVENT) 2017 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 2018 return; 2019 } 2020 2021 ccb = cam_periph_getccb(periph, /*priority*/1); 2022 2023 scsi_prevent(&ccb->csio, 2024 /*retries*/1, 2025 /*cbcfp*/dadone, 2026 MSG_SIMPLE_Q_TAG, 2027 action, 2028 SSD_FULL_SIZE, 2029 5000); 2030 2031 error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO, 2032 SF_RETRY_UA, &softc->device_stats); 2033 2034 if (error == 0) { 2035 if (action == PR_ALLOW) 2036 softc->flags &= ~DA_FLAG_PACK_LOCKED; 2037 else 2038 softc->flags |= DA_FLAG_PACK_LOCKED; 2039 } 2040 2041 xpt_release_ccb(ccb); 2042 } 2043 2044 static int 2045 dagetcapacity(struct cam_periph *periph) 2046 { 2047 struct da_softc *softc; 2048 union ccb *ccb; 2049 struct scsi_read_capacity_data *rcap; 2050 struct scsi_read_capacity_data_long *rcaplong; 2051 uint32_t block_len; 2052 uint64_t maxsector; 2053 int error; 2054 2055 softc = (struct da_softc *)periph->softc; 2056 block_len = 0; 2057 maxsector = 0; 2058 error = 0; 2059 2060 /* Do a read capacity */ 2061 rcap = (void *)kmalloc(sizeof(*rcaplong), M_TEMP, M_INTWAIT); 2062 2063 ccb = cam_periph_getccb(periph, /*priority*/1); 2064 scsi_read_capacity(&ccb->csio, 2065 /*retries*/4, 2066 /*cbfncp*/dadone, 2067 MSG_SIMPLE_Q_TAG, 2068 rcap, 2069 SSD_FULL_SIZE, 2070 /*timeout*/60000); 2071 ccb->ccb_h.ccb_bio = NULL; 2072 2073 error = cam_periph_runccb(ccb, daerror, 2074 /*cam_flags*/CAM_RETRY_SELTO, 2075 /*sense_flags*/SF_RETRY_UA, 2076 &softc->device_stats); 2077 2078 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2079 cam_release_devq(ccb->ccb_h.path, 2080 /*relsim_flags*/0, 2081 /*reduction*/0, 2082 /*timeout*/0, 2083 /*getcount_only*/0); 2084 2085 if (error == 0) { 2086 block_len = scsi_4btoul(rcap->length); 2087 maxsector = scsi_4btoul(rcap->addr); 2088 2089 if (maxsector != 0xffffffff) 2090 goto done; 2091 } else 2092 goto done; 2093 2094 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 2095 2096 scsi_read_capacity_16(&ccb->csio, 2097 /*retries*/ 4, 2098 /*cbfcnp*/ dadone, 2099 /*tag_action*/ MSG_SIMPLE_Q_TAG, 2100 /*lba*/ 0, 2101 /*reladr*/ 0, 2102 /*pmi*/ 0, 2103 rcaplong, 2104 /*sense_len*/ SSD_FULL_SIZE, 2105 /*timeout*/ 60000); 2106 ccb->ccb_h.ccb_bio = NULL; 2107 2108 error = cam_periph_runccb(ccb, daerror, 2109 /*cam_flags*/CAM_RETRY_SELTO, 2110 /*sense_flags*/SF_RETRY_UA, 2111 &softc->device_stats); 2112 2113 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2114 cam_release_devq(ccb->ccb_h.path, 2115 /*relsim_flags*/0, 2116 /*reduction*/0, 2117 /*timeout*/0, 2118 /*getcount_only*/0); 2119 2120 if (error == 0) { 2121 block_len = scsi_4btoul(rcaplong->length); 2122 maxsector = scsi_8btou64(rcaplong->addr); 2123 } 2124 2125 done: 2126 2127 if (error == 0) 2128 dasetgeom(periph, block_len, maxsector); 2129 2130 xpt_release_ccb(ccb); 2131 2132 kfree(rcap, M_TEMP); 2133 2134 return (error); 2135 } 2136 2137 static void 2138 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2139 { 2140 struct ccb_calc_geometry ccg; 2141 struct da_softc *softc; 2142 struct disk_params *dp; 2143 2144 softc = (struct da_softc *)periph->softc; 2145 2146 dp = &softc->params; 2147 dp->secsize = block_len; 2148 dp->sectors = maxsector + 1; 2149 /* 2150 * Have the controller provide us with a geometry 2151 * for this disk. The only time the geometry 2152 * matters is when we boot and the controller 2153 * is the only one knowledgeable enough to come 2154 * up with something that will make this a bootable 2155 * device. 2156 */ 2157 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 2158 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2159 ccg.block_size = dp->secsize; 2160 ccg.volume_size = dp->sectors; 2161 ccg.heads = 0; 2162 ccg.secs_per_track = 0; 2163 ccg.cylinders = 0; 2164 xpt_action((union ccb*)&ccg); 2165 if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2166 /* 2167 * We don't know what went wrong here- but just pick 2168 * a geometry so we don't have nasty things like divide 2169 * by zero. 2170 */ 2171 dp->heads = 255; 2172 dp->secs_per_track = 255; 2173 dp->cylinders = dp->sectors / (255 * 255); 2174 if (dp->cylinders == 0) { 2175 dp->cylinders = 1; 2176 } 2177 } else { 2178 dp->heads = ccg.heads; 2179 dp->secs_per_track = ccg.secs_per_track; 2180 dp->cylinders = ccg.cylinders; 2181 } 2182 } 2183 2184 static void 2185 dasendorderedtag(void *arg) 2186 { 2187 struct da_softc *softc; 2188 2189 if (da_send_ordered) { 2190 SLIST_FOREACH(softc, &softc_list, links) { 2191 crit_enter(); 2192 if ((softc->ordered_tag_count == 0) 2193 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2194 softc->flags |= DA_FLAG_NEED_OTAG; 2195 } 2196 if (softc->outstanding_cmds > 0) 2197 softc->flags &= ~DA_FLAG_WENT_IDLE; 2198 softc->ordered_tag_count = 0; 2199 crit_exit(); 2200 } 2201 /* Queue us up again */ 2202 callout_reset(&dasendorderedtag_ch, 2203 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL, 2204 dasendorderedtag, NULL); 2205 } 2206 } 2207 2208 /* 2209 * Step through all DA peripheral drivers, and if the device is still open, 2210 * sync the disk cache to physical media. 2211 */ 2212 static void 2213 dashutdown(void * arg, int howto) 2214 { 2215 struct cam_periph *periph; 2216 struct da_softc *softc; 2217 2218 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2219 union ccb ccb; 2220 2221 softc = (struct da_softc *)periph->softc; 2222 2223 /* 2224 * We only sync the cache if the drive is still open, and 2225 * if the drive is capable of it.. 2226 */ 2227 if (((softc->flags & DA_FLAG_OPEN) == 0) 2228 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 2229 continue; 2230 2231 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2232 2233 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2234 scsi_synchronize_cache(&ccb.csio, 2235 /*retries*/1, 2236 /*cbfcnp*/dadone, 2237 MSG_SIMPLE_Q_TAG, 2238 /*begin_lba*/0, /* whole disk */ 2239 /*lb_count*/0, 2240 SSD_FULL_SIZE, 2241 60 * 60 * 1000); 2242 2243 xpt_polled_action(&ccb); 2244 2245 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2246 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2247 CAM_SCSI_STATUS_ERROR) 2248 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2249 int error_code, sense_key, asc, ascq; 2250 2251 scsi_extract_sense(&ccb.csio.sense_data, 2252 &error_code, &sense_key, 2253 &asc, &ascq); 2254 2255 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2256 scsi_sense_print(&ccb.csio); 2257 } else { 2258 xpt_print_path(periph->path); 2259 kprintf("Synchronize cache failed, status " 2260 "== 0x%x, scsi status == 0x%x\n", 2261 ccb.ccb_h.status, ccb.csio.scsi_status); 2262 } 2263 } 2264 2265 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2266 cam_release_devq(ccb.ccb_h.path, 2267 /*relsim_flags*/0, 2268 /*reduction*/0, 2269 /*timeout*/0, 2270 /*getcount_only*/0); 2271 2272 } 2273 } 2274 2275 #else /* !_KERNEL */ 2276 2277 /* 2278 * XXX This is only left out of the kernel build to silence warnings. If, 2279 * for some reason this function is used in the kernel, the ifdefs should 2280 * be moved so it is included both in the kernel and userland. 2281 */ 2282 void 2283 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2284 void (*cbfcnp)(struct cam_periph *, union ccb *), 2285 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2286 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2287 u_int32_t timeout) 2288 { 2289 struct scsi_format_unit *scsi_cmd; 2290 2291 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2292 scsi_cmd->opcode = FORMAT_UNIT; 2293 scsi_cmd->byte2 = byte2; 2294 scsi_ulto2b(ileave, scsi_cmd->interleave); 2295 2296 cam_fill_csio(csio, 2297 retries, 2298 cbfcnp, 2299 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2300 tag_action, 2301 data_ptr, 2302 dxfer_len, 2303 sense_len, 2304 sizeof(*scsi_cmd), 2305 timeout); 2306 } 2307 2308 #endif /* _KERNEL */ 2309