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 1.40 2007/07/23 19:20:43 dillon Exp $ 30 */ 31 32 #ifdef _KERNEL 33 #include "opt_hw_wdog.h" 34 #endif /* _KERNEL */ 35 36 #include <sys/param.h> 37 #include <sys/bootmaj.h> 38 39 #ifdef _KERNEL 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/buf.h> 43 #include <sys/sysctl.h> 44 #include <sys/taskqueue.h> 45 #endif /* _KERNEL */ 46 47 #include <sys/devicestat.h> 48 #include <sys/conf.h> 49 #ifdef _KERNEL 50 #include <sys/disk.h> 51 #include <sys/dtype.h> 52 #include <sys/eventhandler.h> 53 #include <sys/malloc.h> 54 #include <sys/cons.h> 55 #include <sys/proc.h> 56 #endif 57 #include <sys/buf2.h> 58 #ifdef _KERNEL 59 #include <sys/thread2.h> 60 #endif 61 62 #include <machine/md_var.h> 63 64 #ifdef _KERNEL 65 #include <vm/vm.h> 66 #include <vm/pmap.h> 67 #endif 68 69 #ifndef _KERNEL 70 #include <stdio.h> 71 #include <string.h> 72 #endif /* _KERNEL */ 73 74 #include "../cam.h" 75 #include "../cam_ccb.h" 76 #include "../cam_extend.h" 77 #include "../cam_periph.h" 78 #include "../cam_xpt_periph.h" 79 80 #include "scsi_message.h" 81 82 #ifndef _KERNEL 83 #include "scsi_da.h" 84 #endif /* !_KERNEL */ 85 86 #ifdef _KERNEL 87 typedef enum { 88 DA_STATE_PROBE, 89 DA_STATE_PROBE2, 90 DA_STATE_NORMAL 91 } da_state; 92 93 typedef enum { 94 DA_FLAG_PACK_INVALID = 0x001, 95 DA_FLAG_NEW_PACK = 0x002, 96 DA_FLAG_PACK_LOCKED = 0x004, 97 DA_FLAG_PACK_REMOVABLE = 0x008, 98 DA_FLAG_TAGGED_QUEUING = 0x010, 99 DA_FLAG_NEED_OTAG = 0x020, 100 DA_FLAG_WENT_IDLE = 0x040, 101 DA_FLAG_RETRY_UA = 0x080, 102 DA_FLAG_OPEN = 0x100, 103 DA_FLAG_SCTX_INIT = 0x200 104 } da_flags; 105 106 typedef enum { 107 DA_Q_NONE = 0x00, 108 DA_Q_NO_SYNC_CACHE = 0x01, 109 DA_Q_NO_6_BYTE = 0x02, 110 DA_Q_NO_PREVENT = 0x04 111 } da_quirks; 112 113 typedef enum { 114 DA_CCB_PROBE = 0x01, 115 DA_CCB_PROBE2 = 0x02, 116 DA_CCB_BUFFER_IO = 0x03, 117 DA_CCB_WAITING = 0x04, 118 DA_CCB_DUMP = 0x05, 119 DA_CCB_TYPE_MASK = 0x0F, 120 DA_CCB_RETRY_UA = 0x10 121 } da_ccb_state; 122 123 /* Offsets into our private area for storing information */ 124 #define ccb_state ppriv_field0 125 #define ccb_bio ppriv_ptr1 126 127 struct disk_params { 128 u_int8_t heads; 129 u_int32_t cylinders; 130 u_int8_t secs_per_track; 131 u_int32_t secsize; /* Number of bytes/sector */ 132 u_int64_t sectors; /* total number sectors */ 133 }; 134 135 struct da_softc { 136 struct bio_queue_head bio_queue; 137 struct devstat device_stats; 138 SLIST_ENTRY(da_softc) links; 139 LIST_HEAD(, ccb_hdr) pending_ccbs; 140 da_state state; 141 da_flags flags; 142 da_quirks quirks; 143 int minimum_cmd_size; 144 int ordered_tag_count; 145 struct disk_params params; 146 struct disk disk; 147 union ccb saved_ccb; 148 struct task sysctl_task; 149 struct sysctl_ctx_list sysctl_ctx; 150 struct sysctl_oid *sysctl_tree; 151 }; 152 153 struct da_quirk_entry { 154 struct scsi_inquiry_pattern inq_pat; 155 da_quirks quirks; 156 }; 157 158 static const char quantum[] = "QUANTUM"; 159 static const char microp[] = "MICROP"; 160 161 static struct da_quirk_entry da_quirk_table[] = 162 { 163 /* SPI, FC devices */ 164 { 165 /* 166 * Fujitsu M2513A MO drives. 167 * Tested devices: M2513A2 firmware versions 1200 & 1300. 168 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 169 * Reported by: W.Scholten <whs@xs4all.nl> 170 */ 171 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 172 /*quirks*/ DA_Q_NO_SYNC_CACHE 173 }, 174 { 175 /* See above. */ 176 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 177 /*quirks*/ DA_Q_NO_SYNC_CACHE 178 }, 179 { 180 /* 181 * This particular Fujitsu drive doesn't like the 182 * synchronize cache command. 183 * Reported by: Tom Jackson <toj@gorilla.net> 184 */ 185 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 186 /*quirks*/ DA_Q_NO_SYNC_CACHE 187 188 }, 189 { 190 /* 191 * This drive doesn't like the synchronize cache command 192 * either. Reported by: Matthew Jacob <mjacob@feral.com> 193 * in NetBSD PR kern/6027, August 24, 1998. 194 */ 195 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 196 /*quirks*/ DA_Q_NO_SYNC_CACHE 197 }, 198 { 199 /* 200 * This drive doesn't like the synchronize cache command 201 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 202 * (PR 8882). 203 */ 204 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 205 /*quirks*/ DA_Q_NO_SYNC_CACHE 206 }, 207 { 208 /* 209 * Doesn't like the synchronize cache command. 210 * Reported by: Blaz Zupan <blaz@gold.amis.net> 211 */ 212 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 213 /*quirks*/ DA_Q_NO_SYNC_CACHE 214 }, 215 { 216 /* 217 * Doesn't like the synchronize cache command. 218 */ 219 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 220 /*quirks*/ DA_Q_NO_SYNC_CACHE 221 }, 222 { 223 /* 224 * Doesn't like the synchronize cache command. 225 */ 226 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 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 /* XXX USB floppy quirks temporarily enabled for 4.9R */ 245 /* USB floppy devices supported by umass(4) */ 246 { 247 /* 248 * This USB floppy drive uses the UFI command set. This 249 * command set is a derivative of the ATAPI command set and 250 * does not support READ_6 commands only READ_10. It also does 251 * not support sync cache (0x35). 252 */ 253 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 254 /*quirks*/ DA_Q_NO_SYNC_CACHE 255 }, 256 { 257 /* Another USB floppy */ 258 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 259 /*quirks*/ DA_Q_NO_SYNC_CACHE 260 }, 261 { 262 /* 263 * The vendor, product and version strings coming from the 264 * controller are null terminated instead of being padded with 265 * spaces. The trailing wildcard character '*' is required. 266 */ 267 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 268 /*quirks*/ DA_Q_NO_SYNC_CACHE 269 }, 270 { 271 /* 272 * SmartDisk (Mitsumi) USB floppy drive 273 * PR: kern/50226 274 */ 275 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 276 /*quirks*/ DA_Q_NO_SYNC_CACHE 277 }, 278 { 279 /* 280 * The CISS RAID controllers do not support SYNC_CACHE 281 */ 282 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 283 /*quirks*/ DA_Q_NO_SYNC_CACHE 284 }, 285 #ifdef DA_OLD_QUIRKS 286 /* USB mass storage devices supported by umass(4) */ 287 { 288 /* 289 * Sony Memory Stick adapter MSAC-US1 and 290 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 291 * Make all sony MS* products use this quirk. 292 */ 293 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 294 /*quirks*/ DA_Q_NO_SYNC_CACHE 295 }, 296 { 297 /* 298 * Sony Memory Stick adapter for the CLIE series 299 * of PalmOS PDA's 300 */ 301 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 302 /*quirks*/ DA_Q_NO_SYNC_CACHE 303 }, 304 { 305 /* 306 * Intelligent Stick USB disk-on-key 307 * PR: kern/53005 308 */ 309 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card", 310 "IntelligentStick*", "*"}, 311 /*quirks*/ DA_Q_NO_SYNC_CACHE 312 }, 313 { 314 /* 315 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 316 */ 317 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 318 /*quirks*/ DA_Q_NO_SYNC_CACHE 319 }, 320 { 321 /* 322 * Microtech USB CameraMate 323 */ 324 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 325 "Compact Flash*", "*"}, 326 /*quirks*/ DA_Q_NO_SYNC_CACHE 327 }, 328 { 329 /* 330 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 331 */ 332 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 333 /*quirks*/ DA_Q_NO_SYNC_CACHE 334 }, 335 { 336 /* 337 * Olympus digital cameras (E-100RS, E-10). 338 */ 339 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 340 /*quirks*/ DA_Q_NO_SYNC_CACHE 341 }, 342 { 343 /* 344 * KingByte Pen Drives 345 */ 346 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 347 /*quirks*/ DA_Q_NO_SYNC_CACHE 348 }, 349 { 350 /* 351 * iRiver iFP MP3 player (with UMS Firmware) 352 * PR: kern/54881, i386/63941, kern/66124 353 */ 354 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 355 /*quirks*/ DA_Q_NO_SYNC_CACHE 356 }, 357 { 358 /* 359 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 360 * PR: kern/70158 361 */ 362 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "NexIA+*", "*"}, 363 /*quirks*/ DA_Q_NO_SYNC_CACHE 364 }, 365 { 366 /* 367 * FujiFilm Camera 368 */ 369 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT", 370 "USB-DRIVEUNIT", "*"}, 371 /*quirks*/ DA_Q_NO_SYNC_CACHE 372 }, 373 { 374 /* 375 * Minolta Dimage E203 376 */ 377 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 378 /*quirks*/ DA_Q_NO_SYNC_CACHE 379 }, 380 { 381 /* 382 * Apacer HandyDrive 383 * PR: kern/43627 384 */ 385 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"}, 386 /*quirks*/ DA_Q_NO_SYNC_CACHE 387 }, 388 { 389 /* 390 * Daisy Technology PhotoClip on Zoran chip 391 * PR: kern/43580 392 */ 393 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 394 /*quirks*/ DA_Q_NO_SYNC_CACHE 395 }, 396 { 397 /* 398 * Sony USB Key-Storage 399 * PR: kern/46386 400 */ 401 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 402 /*quirks*/ DA_Q_NO_SYNC_CACHE 403 }, 404 #endif /* DA_OLD_QUIRKS */ 405 { 406 /* 407 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 408 * PR: kern/51675 409 */ 410 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 411 /*quirks*/ DA_Q_NO_SYNC_CACHE 412 }, 413 { 414 /* 415 * Jungsoft NEXDISK USB flash key 416 * PR: kern/54737 417 */ 418 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 419 /*quirks*/ DA_Q_NO_SYNC_CACHE 420 }, 421 { 422 /* 423 * Creative Nomad MUVO mp3 player (USB) 424 * PR: kern/53094 425 */ 426 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 427 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 428 }, 429 }; 430 431 static d_open_t daopen; 432 static d_close_t daclose; 433 static d_strategy_t dastrategy; 434 static d_ioctl_t daioctl; 435 static d_dump_t dadump; 436 static periph_init_t dainit; 437 static void daasync(void *callback_arg, u_int32_t code, 438 struct cam_path *path, void *arg); 439 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 440 static periph_ctor_t daregister; 441 static periph_dtor_t dacleanup; 442 static periph_start_t dastart; 443 static periph_oninv_t daoninvalidate; 444 static void dadone(struct cam_periph *periph, 445 union ccb *done_ccb); 446 static int daerror(union ccb *ccb, u_int32_t cam_flags, 447 u_int32_t sense_flags); 448 static void daprevent(struct cam_periph *periph, int action); 449 static int dagetcapacity(struct cam_periph *periph); 450 static void dasetgeom(struct cam_periph *periph, uint32_t block_len, 451 uint64_t maxsector); 452 453 static timeout_t dasendorderedtag; 454 static void dashutdown(void *arg, int howto); 455 456 #ifndef DA_DEFAULT_TIMEOUT 457 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 458 #endif 459 460 #ifndef DA_DEFAULT_RETRY 461 #define DA_DEFAULT_RETRY 4 462 #endif 463 464 static int da_retry_count = DA_DEFAULT_RETRY; 465 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 466 static struct callout dasendorderedtag_ch; 467 468 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 469 "CAM Direct Access Disk driver"); 470 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 471 &da_retry_count, 0, "Normal I/O retry count"); 472 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 473 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 474 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 475 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 476 477 /* 478 * DA_ORDEREDTAG_INTERVAL determines how often, relative 479 * to the default timeout, we check to see whether an ordered 480 * tagged transaction is appropriate to prevent simple tag 481 * starvation. Since we'd like to ensure that there is at least 482 * 1/2 of the timeout length left for a starved transaction to 483 * complete after we've sent an ordered tag, we must poll at least 484 * four times in every timeout period. This takes care of the worst 485 * case where a starved transaction starts during an interval that 486 * meets the requirement "don't send an ordered tag" test so it takes 487 * us two intervals to determine that a tag must be sent. 488 */ 489 #ifndef DA_ORDEREDTAG_INTERVAL 490 #define DA_ORDEREDTAG_INTERVAL 4 491 #endif 492 493 static struct periph_driver dadriver = 494 { 495 dainit, "da", 496 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 497 }; 498 499 DATA_SET(periphdriver_set, dadriver); 500 501 /* For 2.2-stable support */ 502 #ifndef D_DISK 503 #define D_DISK 0 504 #endif 505 506 static struct dev_ops da_ops = { 507 { "da", DA_CDEV_MAJOR, D_DISK }, 508 .d_open = daopen, 509 .d_close = daclose, 510 .d_read = physread, 511 .d_write = physwrite, 512 .d_ioctl = daioctl, 513 .d_strategy = dastrategy, 514 .d_dump = dadump 515 }; 516 517 static SLIST_HEAD(,da_softc) softc_list; 518 static struct extend_array *daperiphs; 519 520 static int 521 daopen(struct dev_open_args *ap) 522 { 523 cdev_t dev = ap->a_head.a_dev; 524 struct cam_periph *periph; 525 struct da_softc *softc; 526 struct disk_info info; 527 int unit; 528 int part; 529 int error; 530 531 unit = dkunit(dev); 532 part = dkpart(dev); 533 periph = cam_extend_get(daperiphs, unit); 534 if (periph == NULL) 535 return (ENXIO); 536 537 softc = (struct da_softc *)periph->softc; 538 539 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 540 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 541 unit, part)); 542 543 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 544 return (error); /* error code from tsleep */ 545 } 546 547 if ((softc->flags & DA_FLAG_OPEN) == 0) { 548 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 549 return(ENXIO); 550 softc->flags |= DA_FLAG_OPEN; 551 } 552 553 crit_enter(); 554 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 555 /* Invalidate our pack information. */ 556 disk_invalidate(&softc->disk); 557 softc->flags &= ~DA_FLAG_PACK_INVALID; 558 } 559 crit_exit(); 560 561 error = dagetcapacity(periph); 562 563 #if 0 564 /* Do a read capacity */ 565 { 566 struct scsi_read_capacity_data *rcap; 567 union ccb *ccb; 568 569 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 570 571 ccb = cam_periph_getccb(periph, /*priority*/1); 572 scsi_read_capacity(&ccb->csio, 573 /*retries*/1, 574 /*cbfncp*/dadone, 575 MSG_SIMPLE_Q_TAG, 576 rcap, 577 SSD_FULL_SIZE, 578 /*timeout*/60000); 579 ccb->ccb_h.ccb_bio = NULL; 580 581 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 582 /*sense_flags*/SF_RETRY_UA | 583 SF_RETRY_SELTO, 584 &softc->device_stats); 585 586 xpt_release_ccb(ccb); 587 588 if (error == 0) { 589 dasetgeom(periph, rcap); 590 } 591 592 kfree(rcap, M_TEMP); 593 } 594 #endif 595 596 if (error == 0) { 597 struct ccb_getdev cgd; 598 599 /* Build disk information structure */ 600 bzero(&info, sizeof(info)); 601 info.d_type = DTYPE_SCSI; 602 603 /* 604 * Grab the inquiry data to get the vendor and product names. 605 * Put them in the typename and packname for the label. 606 */ 607 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 608 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 609 xpt_action((union ccb *)&cgd); 610 611 #if 0 612 strncpy(label->d_typename, cgd.inq_data.vendor, 613 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 614 strncpy(label->d_packname, cgd.inq_data.product, 615 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 616 #endif 617 618 /* 619 * Mandatory fields 620 */ 621 info.d_media_blksize = softc->params.secsize; 622 info.d_media_blocks = softc->params.sectors; 623 info.d_media_size = 0; 624 625 /* 626 * Optional fields 627 */ 628 info.d_secpertrack = softc->params.secs_per_track; 629 info.d_nheads = softc->params.heads; 630 info.d_ncylinders = softc->params.cylinders; 631 info.d_secpercyl = softc->params.heads * 632 softc->params.secs_per_track; 633 disk_setdiskinfo(&softc->disk, &info); 634 635 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 636 (softc->quirks & DA_Q_NO_PREVENT) == 0) 637 daprevent(periph, PR_PREVENT); 638 639 /* 640 * Check to see whether or not the blocksize is set yet. 641 * If it isn't, set it and then clear the blocksize 642 * unavailable flag for the device statistics. 643 */ 644 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 645 softc->device_stats.block_size = softc->params.secsize; 646 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 647 } 648 } 649 650 if (error != 0) { 651 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 652 (softc->quirks & DA_Q_NO_PREVENT) == 0) 653 daprevent(periph, PR_ALLOW); 654 softc->flags &= ~DA_FLAG_OPEN; 655 cam_periph_release(periph); 656 } 657 cam_periph_unlock(periph); 658 return (error); 659 } 660 661 static int 662 daclose(struct dev_close_args *ap) 663 { 664 cdev_t dev = ap->a_head.a_dev; 665 struct cam_periph *periph; 666 struct da_softc *softc; 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 softc = (struct da_softc *)periph->softc; 676 677 if ((error = cam_periph_lock(periph, 0)) != 0) { 678 return (error); /* error code from tsleep */ 679 } 680 681 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 682 union ccb *ccb; 683 684 ccb = cam_periph_getccb(periph, /*priority*/1); 685 686 scsi_synchronize_cache(&ccb->csio, 687 /*retries*/1, 688 /*cbfcnp*/dadone, 689 MSG_SIMPLE_Q_TAG, 690 /*begin_lba*/0,/* Cover the whole disk */ 691 /*lb_count*/0, 692 SSD_FULL_SIZE, 693 5 * 60 * 1000); 694 695 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 696 /*sense_flags*/SF_RETRY_UA, 697 &softc->device_stats); 698 699 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 700 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 701 CAM_SCSI_STATUS_ERROR) { 702 int asc, ascq; 703 int sense_key, error_code; 704 705 scsi_extract_sense(&ccb->csio.sense_data, 706 &error_code, 707 &sense_key, 708 &asc, &ascq); 709 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 710 scsi_sense_print(&ccb->csio); 711 } else { 712 xpt_print_path(periph->path); 713 kprintf("Synchronize cache failed, status " 714 "== 0x%x, scsi status == 0x%x\n", 715 ccb->csio.ccb_h.status, 716 ccb->csio.scsi_status); 717 } 718 } 719 720 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 721 cam_release_devq(ccb->ccb_h.path, 722 /*relsim_flags*/0, 723 /*reduction*/0, 724 /*timeout*/0, 725 /*getcount_only*/0); 726 727 xpt_release_ccb(ccb); 728 729 } 730 731 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 732 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 733 daprevent(periph, PR_ALLOW); 734 /* 735 * If we've got removeable media, mark the blocksize as 736 * unavailable, since it could change when new media is 737 * inserted. 738 */ 739 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 740 } 741 742 /* 743 * Don't compound any ref counting software bugs with more. 744 */ 745 if (softc->flags & DA_FLAG_OPEN) { 746 softc->flags &= ~DA_FLAG_OPEN; 747 cam_periph_release(periph); 748 } else { 749 xpt_print_path(periph->path); 750 kprintf("daclose() called on an already closed device!\n"); 751 } 752 cam_periph_unlock(periph); 753 return (0); 754 } 755 756 /* 757 * Actually translate the requested transfer into one the physical driver 758 * can understand. The transfer is described by a buf and will include 759 * only one physical transfer. 760 */ 761 static int 762 dastrategy(struct dev_strategy_args *ap) 763 { 764 cdev_t dev = ap->a_head.a_dev; 765 struct bio *bio = ap->a_bio; 766 struct buf *bp = bio->bio_buf; 767 struct cam_periph *periph; 768 struct da_softc *softc; 769 u_int unit; 770 u_int part; 771 772 unit = dkunit(dev); 773 part = dkpart(dev); 774 periph = cam_extend_get(daperiphs, unit); 775 if (periph == NULL) { 776 bp->b_error = ENXIO; 777 goto bad; 778 } 779 softc = (struct da_softc *)periph->softc; 780 #if 0 781 /* 782 * check it's not too big a transfer for our adapter 783 */ 784 scsi_minphys(bp, &sd_switch); 785 #endif 786 787 /* 788 * Mask interrupts so that the pack cannot be invalidated until 789 * after we are in the queue. Otherwise, we might not properly 790 * clean up one of the buffers. 791 */ 792 crit_enter(); 793 794 /* 795 * If the device has been made invalid, error out 796 */ 797 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 798 crit_exit(); 799 bp->b_error = ENXIO; 800 goto bad; 801 } 802 803 /* 804 * Place it in the queue of disk activities for this disk 805 */ 806 bioqdisksort(&softc->bio_queue, bio); 807 808 crit_exit(); 809 810 /* 811 * Schedule ourselves for performing the work. 812 */ 813 xpt_schedule(periph, /* XXX priority */1); 814 815 return(0); 816 bad: 817 bp->b_flags |= B_ERROR; 818 819 /* 820 * Correctly set the buf to indicate a completed xfer 821 */ 822 bp->b_resid = bp->b_bcount; 823 biodone(bio); 824 return(0); 825 } 826 827 /* For 2.2-stable support */ 828 #ifndef ENOIOCTL 829 #define ENOIOCTL -1 830 #endif 831 832 static int 833 daioctl(struct dev_ioctl_args *ap) 834 { 835 cdev_t dev = ap->a_head.a_dev; 836 struct cam_periph *periph; 837 struct da_softc *softc; 838 int unit; 839 int error; 840 841 unit = dkunit(dev); 842 periph = cam_extend_get(daperiphs, unit); 843 if (periph == NULL) 844 return (ENXIO); 845 846 softc = (struct da_softc *)periph->softc; 847 848 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 849 850 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 851 return (error); /* error code from tsleep */ 852 } 853 854 error = cam_periph_ioctl(periph, ap->a_cmd, ap->a_data, daerror); 855 856 cam_periph_unlock(periph); 857 858 return (error); 859 } 860 861 static int 862 dadump(struct dev_dump_args *ap) 863 { 864 cdev_t dev = ap->a_head.a_dev; 865 struct cam_periph *periph; 866 struct da_softc *softc; 867 u_int unit; 868 long blkcnt; 869 vm_paddr_t addr; 870 struct ccb_scsiio csio; 871 int dumppages = MAXDUMPPGS; 872 int i; 873 874 /* toss any characters present prior to dump */ 875 while (cncheckc() != -1) 876 ; 877 878 unit = dkunit(dev); 879 periph = cam_extend_get(daperiphs, unit); 880 if (periph == NULL) { 881 return (ENXIO); 882 } 883 softc = (struct da_softc *)periph->softc; 884 885 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 886 return (ENXIO); 887 888 addr = 0; /* starting address */ 889 blkcnt = howmany(PAGE_SIZE, ap->a_secsize); 890 891 while (ap->a_count > 0) { 892 caddr_t va = NULL; 893 894 if ((ap->a_count / blkcnt) < dumppages) 895 dumppages = ap->a_count / blkcnt; 896 897 for (i = 0; i < dumppages; ++i) { 898 vm_paddr_t a = addr + (i * PAGE_SIZE); 899 if (is_physical_memory(a)) 900 va = pmap_kenter_temporary(trunc_page(a), i); 901 else 902 va = pmap_kenter_temporary(trunc_page(0), i); 903 } 904 905 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 906 csio.ccb_h.ccb_state = DA_CCB_DUMP; 907 scsi_read_write(&csio, 908 /*retries*/1, 909 dadone, 910 MSG_ORDERED_Q_TAG, 911 /*read*/FALSE, 912 /*byte2*/0, 913 /*minimum_cmd_size*/ softc->minimum_cmd_size, 914 ap->a_blkno, 915 blkcnt * dumppages, 916 /*data_ptr*/(u_int8_t *) va, 917 /*dxfer_len*/blkcnt * ap->a_secsize * dumppages, 918 /*sense_len*/SSD_FULL_SIZE, 919 DA_DEFAULT_TIMEOUT * 1000); 920 xpt_polled_action((union ccb *)&csio); 921 922 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 923 kprintf("Aborting dump due to I/O error.\n"); 924 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 925 CAM_SCSI_STATUS_ERROR) 926 scsi_sense_print(&csio); 927 else 928 kprintf("status == 0x%x, scsi status == 0x%x\n", 929 csio.ccb_h.status, csio.scsi_status); 930 return(EIO); 931 } 932 933 if (dumpstatus(addr, (off_t)ap->a_count * softc->params.secsize) < 0) 934 return (EINTR); 935 936 /* update block count */ 937 ap->a_count -= blkcnt * dumppages; 938 ap->a_blkno += blkcnt * dumppages; 939 addr += PAGE_SIZE * dumppages; 940 } 941 942 /* 943 * Sync the disk cache contents to the physical media. 944 */ 945 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 946 947 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 948 csio.ccb_h.ccb_state = DA_CCB_DUMP; 949 scsi_synchronize_cache(&csio, 950 /*retries*/1, 951 /*cbfcnp*/dadone, 952 MSG_SIMPLE_Q_TAG, 953 /*begin_lba*/0,/* Cover the whole disk */ 954 /*lb_count*/0, 955 SSD_FULL_SIZE, 956 5 * 60 * 1000); 957 xpt_polled_action((union ccb *)&csio); 958 959 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 960 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 961 CAM_SCSI_STATUS_ERROR) { 962 int asc, ascq; 963 int sense_key, error_code; 964 965 scsi_extract_sense(&csio.sense_data, 966 &error_code, 967 &sense_key, 968 &asc, &ascq); 969 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 970 scsi_sense_print(&csio); 971 } else { 972 xpt_print_path(periph->path); 973 kprintf("Synchronize cache failed, status " 974 "== 0x%x, scsi status == 0x%x\n", 975 csio.ccb_h.status, csio.scsi_status); 976 } 977 } 978 } 979 return (0); 980 } 981 982 static void 983 dainit(void) 984 { 985 cam_status status; 986 struct cam_path *path; 987 988 /* 989 * Create our extend array for storing the devices we attach to. 990 */ 991 daperiphs = cam_extend_new(); 992 SLIST_INIT(&softc_list); 993 if (daperiphs == NULL) { 994 kprintf("da: Failed to alloc extend array!\n"); 995 return; 996 } 997 998 callout_init(&dasendorderedtag_ch); 999 1000 /* 1001 * Install a global async callback. This callback will 1002 * receive async callbacks like "new device found". 1003 */ 1004 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 1005 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1006 1007 if (status == CAM_REQ_CMP) { 1008 struct ccb_setasync csa; 1009 1010 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 1011 csa.ccb_h.func_code = XPT_SASYNC_CB; 1012 csa.event_enable = AC_FOUND_DEVICE; 1013 csa.callback = daasync; 1014 csa.callback_arg = NULL; 1015 xpt_action((union ccb *)&csa); 1016 status = csa.ccb_h.status; 1017 xpt_free_path(path); 1018 } 1019 1020 if (status != CAM_REQ_CMP) { 1021 kprintf("da: Failed to attach master async callback " 1022 "due to status 0x%x!\n", status); 1023 } else { 1024 1025 /* 1026 * Schedule a periodic event to occasionally send an 1027 * ordered tag to a device. 1028 */ 1029 callout_reset(&dasendorderedtag_ch, 1030 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1031 dasendorderedtag, NULL); 1032 1033 /* Register our shutdown event handler */ 1034 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1035 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1036 kprintf("dainit: shutdown event registration failed!\n"); 1037 } 1038 } 1039 1040 static void 1041 daoninvalidate(struct cam_periph *periph) 1042 { 1043 struct da_softc *softc; 1044 struct bio *q_bio; 1045 struct buf *q_bp; 1046 struct ccb_setasync csa; 1047 1048 softc = (struct da_softc *)periph->softc; 1049 1050 /* 1051 * De-register any async callbacks. 1052 */ 1053 xpt_setup_ccb(&csa.ccb_h, periph->path, 1054 /* priority */ 5); 1055 csa.ccb_h.func_code = XPT_SASYNC_CB; 1056 csa.event_enable = 0; 1057 csa.callback = daasync; 1058 csa.callback_arg = periph; 1059 xpt_action((union ccb *)&csa); 1060 1061 softc->flags |= DA_FLAG_PACK_INVALID; 1062 1063 /* 1064 * Use a critical section to keep the buffer queue from being 1065 * modified while we traverse it. 1066 */ 1067 crit_enter(); 1068 1069 /* 1070 * Return all queued I/O with ENXIO. 1071 * XXX Handle any transactions queued to the card 1072 * with XPT_ABORT_CCB. 1073 */ 1074 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ 1075 bioq_remove(&softc->bio_queue, q_bio); 1076 q_bp = q_bio->bio_buf; 1077 q_bp->b_resid = q_bp->b_bcount; 1078 q_bp->b_error = ENXIO; 1079 q_bp->b_flags |= B_ERROR; 1080 biodone(q_bio); 1081 } 1082 crit_exit(); 1083 1084 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1085 1086 xpt_print_path(periph->path); 1087 kprintf("lost device\n"); 1088 } 1089 1090 static void 1091 dacleanup(struct cam_periph *periph) 1092 { 1093 struct da_softc *softc; 1094 1095 softc = (struct da_softc *)periph->softc; 1096 1097 devstat_remove_entry(&softc->device_stats); 1098 cam_extend_release(daperiphs, periph->unit_number); 1099 xpt_print_path(periph->path); 1100 kprintf("removing device entry\n"); 1101 /* 1102 * If we can't free the sysctl tree, oh well... 1103 */ 1104 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1105 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1106 xpt_print_path(periph->path); 1107 kprintf("can't remove sysctl context\n"); 1108 } 1109 if (softc->disk.d_rawdev) { 1110 disk_destroy(&softc->disk); 1111 } 1112 kfree(softc, M_DEVBUF); 1113 } 1114 1115 static void 1116 daasync(void *callback_arg, u_int32_t code, 1117 struct cam_path *path, void *arg) 1118 { 1119 struct cam_periph *periph; 1120 1121 periph = (struct cam_periph *)callback_arg; 1122 switch (code) { 1123 case AC_FOUND_DEVICE: 1124 { 1125 struct ccb_getdev *cgd; 1126 cam_status status; 1127 1128 cgd = (struct ccb_getdev *)arg; 1129 1130 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1131 && SID_TYPE(&cgd->inq_data) != T_RBC 1132 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1133 break; 1134 1135 /* 1136 * Allocate a peripheral instance for 1137 * this device and start the probe 1138 * process. 1139 */ 1140 status = cam_periph_alloc(daregister, daoninvalidate, 1141 dacleanup, dastart, 1142 "da", CAM_PERIPH_BIO, 1143 cgd->ccb_h.path, daasync, 1144 AC_FOUND_DEVICE, cgd); 1145 1146 if (status != CAM_REQ_CMP 1147 && status != CAM_REQ_INPROG) 1148 kprintf("daasync: Unable to attach to new device " 1149 "due to status 0x%x\n", status); 1150 break; 1151 } 1152 case AC_SENT_BDR: 1153 case AC_BUS_RESET: 1154 { 1155 struct da_softc *softc; 1156 struct ccb_hdr *ccbh; 1157 1158 softc = (struct da_softc *)periph->softc; 1159 crit_enter(); 1160 /* 1161 * Don't fail on the expected unit attention 1162 * that will occur. 1163 */ 1164 softc->flags |= DA_FLAG_RETRY_UA; 1165 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 1166 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 1167 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1168 crit_exit(); 1169 /* FALLTHROUGH*/ 1170 } 1171 default: 1172 cam_periph_async(periph, code, path, arg); 1173 break; 1174 } 1175 } 1176 1177 static void 1178 dasysctlinit(void *context, int pending) 1179 { 1180 struct cam_periph *periph; 1181 struct da_softc *softc; 1182 char tmpstr[80], tmpstr2[80]; 1183 1184 periph = (struct cam_periph *)context; 1185 softc = (struct da_softc *)periph->softc; 1186 1187 ksnprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1188 ksnprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1189 1190 sysctl_ctx_init(&softc->sysctl_ctx); 1191 softc->flags |= DA_FLAG_SCTX_INIT; 1192 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1193 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1194 CTLFLAG_RD, 0, tmpstr); 1195 if (softc->sysctl_tree == NULL) { 1196 kprintf("dasysctlinit: unable to allocate sysctl tree\n"); 1197 return; 1198 } 1199 1200 /* 1201 * Now register the sysctl handler, so the user can the value on 1202 * the fly. 1203 */ 1204 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1205 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1206 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1207 "Minimum CDB size"); 1208 } 1209 1210 static int 1211 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1212 { 1213 int error, value; 1214 1215 value = *(int *)arg1; 1216 1217 error = sysctl_handle_int(oidp, &value, 0, req); 1218 1219 if ((error != 0) 1220 || (req->newptr == NULL)) 1221 return (error); 1222 1223 /* 1224 * Acceptable values here are 6, 10 or 12, or 16. 1225 */ 1226 if (value < 6) 1227 value = 6; 1228 else if ((value > 6) 1229 && (value <= 10)) 1230 value = 10; 1231 else if ((value > 10) 1232 && (value <= 12)) 1233 value = 12; 1234 else if (value > 12) 1235 value = 16; 1236 1237 *(int *)arg1 = value; 1238 1239 return (0); 1240 } 1241 1242 static cam_status 1243 daregister(struct cam_periph *periph, void *arg) 1244 { 1245 struct da_softc *softc; 1246 struct ccb_setasync csa; 1247 struct ccb_pathinq cpi; 1248 struct ccb_getdev *cgd; 1249 char tmpstr[80]; 1250 caddr_t match; 1251 1252 cgd = (struct ccb_getdev *)arg; 1253 if (periph == NULL) { 1254 kprintf("daregister: periph was NULL!!\n"); 1255 return(CAM_REQ_CMP_ERR); 1256 } 1257 1258 if (cgd == NULL) { 1259 kprintf("daregister: no getdev CCB, can't register device\n"); 1260 return(CAM_REQ_CMP_ERR); 1261 } 1262 1263 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1264 LIST_INIT(&softc->pending_ccbs); 1265 softc->state = DA_STATE_PROBE; 1266 bioq_init(&softc->bio_queue); 1267 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1268 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1269 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1270 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1271 1272 periph->softc = softc; 1273 1274 cam_extend_set(daperiphs, periph->unit_number, periph); 1275 1276 /* 1277 * See if this device has any quirks. 1278 */ 1279 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1280 (caddr_t)da_quirk_table, 1281 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1282 sizeof(*da_quirk_table), scsi_inquiry_match); 1283 1284 if (match != NULL) 1285 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1286 else 1287 softc->quirks = DA_Q_NONE; 1288 1289 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1290 1291 /* Check if the SIM does not want 6 byte commands */ 1292 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1293 cpi.ccb_h.func_code = XPT_PATH_INQ; 1294 xpt_action((union ccb *)&cpi); 1295 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1296 softc->quirks |= DA_Q_NO_6_BYTE; 1297 1298 /* 1299 * RBC devices don't have to support READ(6), only READ(10). 1300 */ 1301 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1302 softc->minimum_cmd_size = 10; 1303 else 1304 softc->minimum_cmd_size = 6; 1305 1306 /* 1307 * Load the user's default, if any. 1308 */ 1309 ksnprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1310 periph->unit_number); 1311 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1312 1313 /* 1314 * 6, 10, 12, and 16 are the currently permissible values. 1315 */ 1316 if (softc->minimum_cmd_size < 6) 1317 softc->minimum_cmd_size = 6; 1318 else if ((softc->minimum_cmd_size > 6) 1319 && (softc->minimum_cmd_size <= 10)) 1320 softc->minimum_cmd_size = 10; 1321 else if ((softc->minimum_cmd_size > 10) 1322 && (softc->minimum_cmd_size <= 12)) 1323 softc->minimum_cmd_size = 12; 1324 else if (softc->minimum_cmd_size > 12) 1325 softc->minimum_cmd_size = 16; 1326 1327 /* 1328 * Block our timeout handler while we 1329 * add this softc to the dev list. 1330 */ 1331 crit_enter(); 1332 SLIST_INSERT_HEAD(&softc_list, softc, links); 1333 crit_exit(); 1334 1335 /* 1336 * The DA driver supports a blocksize, but 1337 * we don't know the blocksize until we do 1338 * a read capacity. So, set a flag to 1339 * indicate that the blocksize is 1340 * unavailable right now. We'll clear the 1341 * flag as soon as we've done a read capacity. 1342 */ 1343 devstat_add_entry(&softc->device_stats, "da", 1344 periph->unit_number, 0, 1345 DEVSTAT_BS_UNAVAILABLE, 1346 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1347 DEVSTAT_PRIORITY_DISK); 1348 1349 /* 1350 * Register this media as a disk 1351 */ 1352 disk_create(periph->unit_number, &softc->disk, &da_ops); 1353 softc->disk.d_rawdev->si_iosize_max = MAXPHYS; 1354 1355 /* 1356 * Add async callbacks for bus reset and 1357 * bus device reset calls. I don't bother 1358 * checking if this fails as, in most cases, 1359 * the system will function just fine without 1360 * them and the only alternative would be to 1361 * not attach the device on failure. 1362 */ 1363 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1364 csa.ccb_h.func_code = XPT_SASYNC_CB; 1365 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1366 csa.callback = daasync; 1367 csa.callback_arg = periph; 1368 xpt_action((union ccb *)&csa); 1369 /* 1370 * Lock this peripheral until we are setup. 1371 * This first call can't block 1372 */ 1373 cam_periph_lock(periph, 0); 1374 xpt_schedule(periph, /*priority*/5); 1375 1376 return(CAM_REQ_CMP); 1377 } 1378 1379 static void 1380 dastart(struct cam_periph *periph, union ccb *start_ccb) 1381 { 1382 struct da_softc *softc; 1383 1384 softc = (struct da_softc *)periph->softc; 1385 1386 1387 switch (softc->state) { 1388 case DA_STATE_NORMAL: 1389 { 1390 /* Pull a buffer from the queue and get going on it */ 1391 struct bio *bio; 1392 struct buf *bp; 1393 1394 /* 1395 * See if there is a buf with work for us to do.. 1396 */ 1397 crit_enter(); 1398 bio = bioq_first(&softc->bio_queue); 1399 if (periph->immediate_priority <= periph->pinfo.priority) { 1400 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1401 ("queuing for immediate ccb\n")); 1402 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1403 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1404 periph_links.sle); 1405 periph->immediate_priority = CAM_PRIORITY_NONE; 1406 crit_exit(); 1407 wakeup(&periph->ccb_list); 1408 } else if (bio == NULL) { 1409 crit_exit(); 1410 xpt_release_ccb(start_ccb); 1411 } else { 1412 u_int8_t tag_code; 1413 1414 bioq_remove(&softc->bio_queue, bio); 1415 bp = bio->bio_buf; 1416 1417 devstat_start_transaction(&softc->device_stats); 1418 1419 if ((bp->b_flags & B_ORDERED) != 0 1420 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1421 softc->flags &= ~DA_FLAG_NEED_OTAG; 1422 softc->ordered_tag_count++; 1423 tag_code = MSG_ORDERED_Q_TAG; 1424 } else { 1425 tag_code = MSG_SIMPLE_Q_TAG; 1426 } 1427 1428 KKASSERT(bio->bio_offset % softc->params.secsize == 0); 1429 1430 scsi_read_write(&start_ccb->csio, 1431 /*retries*/da_retry_count, 1432 dadone, 1433 tag_code, 1434 (bp->b_cmd == BUF_CMD_READ), 1435 /*byte2*/0, 1436 softc->minimum_cmd_size, 1437 bio->bio_offset / softc->params.secsize, 1438 bp->b_bcount / softc->params.secsize, 1439 bp->b_data, 1440 bp->b_bcount, 1441 /*sense_len*/SSD_FULL_SIZE, 1442 da_default_timeout * 1000); 1443 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1444 1445 /* 1446 * Block out any asyncronous callbacks 1447 * while we touch the pending ccb list. 1448 */ 1449 LIST_INSERT_HEAD(&softc->pending_ccbs, 1450 &start_ccb->ccb_h, periph_links.le); 1451 1452 /* We expect a unit attention from this device */ 1453 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1454 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1455 softc->flags &= ~DA_FLAG_RETRY_UA; 1456 } 1457 1458 start_ccb->ccb_h.ccb_bio = bio; 1459 bio = bioq_first(&softc->bio_queue); 1460 crit_exit(); 1461 1462 xpt_action(start_ccb); 1463 } 1464 1465 if (bio != NULL) { 1466 /* Have more work to do, so ensure we stay scheduled */ 1467 xpt_schedule(periph, /* XXX priority */1); 1468 } 1469 break; 1470 } 1471 case DA_STATE_PROBE: 1472 { 1473 struct ccb_scsiio *csio; 1474 struct scsi_read_capacity_data *rcap; 1475 1476 rcap = kmalloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 1477 csio = &start_ccb->csio; 1478 scsi_read_capacity(csio, 1479 /*retries*/4, 1480 dadone, 1481 MSG_SIMPLE_Q_TAG, 1482 rcap, 1483 SSD_FULL_SIZE, 1484 /*timeout*/5000); 1485 start_ccb->ccb_h.ccb_bio = NULL; 1486 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1487 xpt_action(start_ccb); 1488 break; 1489 } 1490 case DA_STATE_PROBE2: 1491 { 1492 struct ccb_scsiio *csio; 1493 struct scsi_read_capacity_data_long *rcaplong; 1494 1495 rcaplong = (struct scsi_read_capacity_data_long *) 1496 kmalloc(sizeof(*rcaplong), M_TEMP, M_INTWAIT); 1497 if (rcaplong == NULL) { 1498 kprintf("dastart: Couldn't allocate read_capacity\n"); 1499 /* da_free_periph??? */ 1500 break; 1501 } 1502 csio = &start_ccb->csio; 1503 scsi_read_capacity_16(csio, 1504 /*retries*/ 4, 1505 /*cbfcnp*/ dadone, 1506 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1507 /*lba*/ 0, 1508 /*reladr*/ 0, 1509 /*pmi*/ 0, 1510 rcaplong, 1511 /*sense_len*/ SSD_FULL_SIZE, 1512 /*timeout*/ 60000); 1513 start_ccb->ccb_h.ccb_bio = NULL; 1514 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2; 1515 xpt_action(start_ccb); 1516 break; 1517 } 1518 } 1519 } 1520 1521 static int 1522 cmd6workaround(union ccb *ccb) 1523 { 1524 struct scsi_rw_6 cmd6; 1525 struct scsi_rw_10 *cmd10; 1526 struct da_softc *softc; 1527 u_int8_t *cdb; 1528 int frozen; 1529 1530 cdb = ccb->csio.cdb_io.cdb_bytes; 1531 1532 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1533 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1534 (*cdb != READ_6 && *cdb != WRITE_6)) 1535 return 0; 1536 1537 xpt_print_path(ccb->ccb_h.path); 1538 kprintf("READ(6)/WRITE(6) not supported, " 1539 "increasing minimum_cmd_size to 10.\n"); 1540 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1541 softc->minimum_cmd_size = 10; 1542 1543 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1544 cmd10 = (struct scsi_rw_10 *)cdb; 1545 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1546 cmd10->byte2 = 0; 1547 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1548 cmd10->reserved = 0; 1549 scsi_ulto2b(cmd6.length, cmd10->length); 1550 cmd10->control = cmd6.control; 1551 ccb->csio.cdb_len = sizeof(*cmd10); 1552 1553 /* Requeue request, unfreezing queue if necessary */ 1554 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1555 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1556 xpt_action(ccb); 1557 if (frozen) { 1558 cam_release_devq(ccb->ccb_h.path, 1559 /*relsim_flags*/0, 1560 /*reduction*/0, 1561 /*timeout*/0, 1562 /*getcount_only*/0); 1563 } 1564 return (ERESTART); 1565 } 1566 1567 static void 1568 dadone(struct cam_periph *periph, union ccb *done_ccb) 1569 { 1570 struct da_softc *softc; 1571 struct ccb_scsiio *csio; 1572 1573 softc = (struct da_softc *)periph->softc; 1574 csio = &done_ccb->csio; 1575 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1576 case DA_CCB_BUFFER_IO: 1577 { 1578 struct buf *bp; 1579 struct bio *bio; 1580 1581 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1582 bp = bio->bio_buf; 1583 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1584 int error; 1585 int sf; 1586 1587 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1588 sf = SF_RETRY_UA; 1589 else 1590 sf = 0; 1591 1592 /* Retry selection timeouts */ 1593 sf |= SF_RETRY_SELTO; 1594 1595 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) { 1596 /* 1597 * A retry was scheuled, so 1598 * just return. 1599 */ 1600 return; 1601 } 1602 if (error != 0) { 1603 struct bio *q_bio; 1604 struct buf *q_bp; 1605 1606 crit_enter(); 1607 1608 if (error == ENXIO) { 1609 /* 1610 * Catastrophic error. Mark our pack as 1611 * invalid. 1612 */ 1613 /* XXX See if this is really a media 1614 * change first. 1615 */ 1616 xpt_print_path(periph->path); 1617 kprintf("Invalidating pack\n"); 1618 softc->flags |= DA_FLAG_PACK_INVALID; 1619 } 1620 1621 /* 1622 * return all queued I/O with EIO, so that 1623 * the client can retry these I/Os in the 1624 * proper order should it attempt to recover. 1625 */ 1626 while ((q_bio = bioq_first(&softc->bio_queue)) 1627 != NULL) { 1628 bioq_remove(&softc->bio_queue, q_bio); 1629 q_bp = q_bio->bio_buf; 1630 q_bp->b_resid = q_bp->b_bcount; 1631 q_bp->b_error = EIO; 1632 q_bp->b_flags |= B_ERROR; 1633 biodone(q_bio); 1634 } 1635 crit_exit(); 1636 bp->b_error = error; 1637 bp->b_resid = bp->b_bcount; 1638 bp->b_flags |= B_ERROR; 1639 } else { 1640 bp->b_resid = csio->resid; 1641 bp->b_error = 0; 1642 if (bp->b_resid != 0) 1643 bp->b_flags |= B_ERROR; 1644 } 1645 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1646 cam_release_devq(done_ccb->ccb_h.path, 1647 /*relsim_flags*/0, 1648 /*reduction*/0, 1649 /*timeout*/0, 1650 /*getcount_only*/0); 1651 } else { 1652 bp->b_resid = csio->resid; 1653 if (csio->resid > 0) 1654 bp->b_flags |= B_ERROR; 1655 } 1656 1657 /* 1658 * Block out any asyncronous callbacks 1659 * while we touch the pending ccb list. 1660 */ 1661 crit_enter(); 1662 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1663 crit_exit(); 1664 1665 if (softc->device_stats.busy_count == 0) 1666 softc->flags |= DA_FLAG_WENT_IDLE; 1667 1668 devstat_end_transaction_buf(&softc->device_stats, bp); 1669 biodone(bio); 1670 break; 1671 } 1672 case DA_CCB_PROBE: 1673 case DA_CCB_PROBE2: 1674 { 1675 struct scsi_read_capacity_data *rdcap; 1676 struct scsi_read_capacity_data_long *rcaplong; 1677 char announce_buf[80]; 1678 1679 rdcap = NULL; 1680 rcaplong = NULL; 1681 if (softc->state == DA_STATE_PROBE) 1682 rdcap =(struct scsi_read_capacity_data *)csio->data_ptr; 1683 else 1684 rcaplong = (struct scsi_read_capacity_data_long *) 1685 csio->data_ptr; 1686 1687 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1688 struct disk_params *dp; 1689 uint32_t block_size; 1690 uint64_t maxsector; 1691 1692 if (softc->state == DA_STATE_PROBE) { 1693 block_size = scsi_4btoul(rdcap->length); 1694 maxsector = scsi_4btoul(rdcap->addr); 1695 1696 /* 1697 * According to SBC-2, if the standard 10 1698 * byte READ CAPACITY command returns 2^32, 1699 * we should issue the 16 byte version of 1700 * the command, since the device in question 1701 * has more sectors than can be represented 1702 * with the short version of the command. 1703 */ 1704 if (maxsector == 0xffffffff) { 1705 softc->state = DA_STATE_PROBE2; 1706 kfree(rdcap, M_TEMP); 1707 xpt_release_ccb(done_ccb); 1708 xpt_schedule(periph, /*priority*/5); 1709 return; 1710 } 1711 } else { 1712 block_size = scsi_4btoul(rcaplong->length); 1713 maxsector = scsi_8btou64(rcaplong->addr); 1714 } 1715 dasetgeom(periph, block_size, maxsector); 1716 dp = &softc->params; 1717 ksnprintf(announce_buf, sizeof(announce_buf), 1718 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 1719 (uintmax_t) (((uintmax_t)dp->secsize * 1720 dp->sectors) / (1024*1024)), 1721 (uintmax_t)dp->sectors, 1722 dp->secsize, dp->heads, dp->secs_per_track, 1723 dp->cylinders); 1724 } else { 1725 int error; 1726 1727 announce_buf[0] = '\0'; 1728 1729 /* 1730 * Retry any UNIT ATTENTION type errors. They 1731 * are expected at boot. 1732 */ 1733 error = daerror(done_ccb, 0, SF_RETRY_UA | 1734 SF_RETRY_SELTO | SF_NO_PRINT); 1735 if (error == ERESTART) { 1736 /* 1737 * A retry was scheuled, so 1738 * just return. 1739 */ 1740 return; 1741 } else if (error != 0) { 1742 struct scsi_sense_data *sense; 1743 int asc, ascq; 1744 int sense_key, error_code; 1745 int have_sense; 1746 cam_status status; 1747 struct ccb_getdev cgd; 1748 1749 /* Don't wedge this device's queue */ 1750 cam_release_devq(done_ccb->ccb_h.path, 1751 /*relsim_flags*/0, 1752 /*reduction*/0, 1753 /*timeout*/0, 1754 /*getcount_only*/0); 1755 1756 status = done_ccb->ccb_h.status; 1757 1758 xpt_setup_ccb(&cgd.ccb_h, 1759 done_ccb->ccb_h.path, 1760 /* priority */ 1); 1761 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1762 xpt_action((union ccb *)&cgd); 1763 1764 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1765 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1766 || ((status & CAM_AUTOSNS_VALID) == 0)) 1767 have_sense = FALSE; 1768 else 1769 have_sense = TRUE; 1770 1771 if (have_sense) { 1772 sense = &csio->sense_data; 1773 scsi_extract_sense(sense, &error_code, 1774 &sense_key, 1775 &asc, &ascq); 1776 } 1777 /* 1778 * Attach to anything that claims to be a 1779 * direct access or optical disk device, 1780 * as long as it doesn't return a "Logical 1781 * unit not supported" (0x25) error. 1782 */ 1783 if ((have_sense) && (asc != 0x25) 1784 && (error_code == SSD_CURRENT_ERROR)) 1785 ksnprintf(announce_buf, 1786 sizeof(announce_buf), 1787 "Attempt to query device " 1788 "size failed: %s, %s", 1789 scsi_sense_key_text[sense_key], 1790 scsi_sense_desc(asc,ascq, 1791 &cgd.inq_data)); 1792 else { 1793 if (have_sense) 1794 scsi_sense_print( 1795 &done_ccb->csio); 1796 else { 1797 xpt_print_path(periph->path); 1798 kprintf("got CAM status %#x\n", 1799 done_ccb->ccb_h.status); 1800 } 1801 1802 xpt_print_path(periph->path); 1803 kprintf("fatal error, failed" 1804 " to attach to device\n"); 1805 1806 /* 1807 * Free up resources. 1808 */ 1809 cam_periph_invalidate(periph); 1810 } 1811 } 1812 } 1813 kfree(csio->data_ptr, M_TEMP); 1814 if (announce_buf[0] != '\0') { 1815 xpt_announce_periph(periph, announce_buf); 1816 /* 1817 * Create our sysctl variables, now that we know 1818 * we have successfully attached. 1819 */ 1820 taskqueue_enqueue(taskqueue_thread[mycpuid], 1821 &softc->sysctl_task); 1822 } 1823 softc->state = DA_STATE_NORMAL; 1824 /* 1825 * Since our peripheral may be invalidated by an error 1826 * above or an external event, we must release our CCB 1827 * before releasing the probe lock on the peripheral. 1828 * The peripheral will only go away once the last lock 1829 * is removed, and we need it around for the CCB release 1830 * operation. 1831 */ 1832 xpt_release_ccb(done_ccb); 1833 cam_periph_unlock(periph); 1834 return; 1835 } 1836 case DA_CCB_WAITING: 1837 { 1838 /* Caller will release the CCB */ 1839 wakeup(&done_ccb->ccb_h.cbfcnp); 1840 return; 1841 } 1842 case DA_CCB_DUMP: 1843 /* No-op. We're polling */ 1844 return; 1845 default: 1846 break; 1847 } 1848 xpt_release_ccb(done_ccb); 1849 } 1850 1851 static int 1852 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1853 { 1854 struct da_softc *softc; 1855 struct cam_periph *periph; 1856 int error; 1857 1858 periph = xpt_path_periph(ccb->ccb_h.path); 1859 softc = (struct da_softc *)periph->softc; 1860 1861 /* 1862 * Automatically detect devices that do not support 1863 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1864 */ 1865 error = 0; 1866 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1867 error = cmd6workaround(ccb); 1868 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1869 CAM_SCSI_STATUS_ERROR) 1870 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1871 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1872 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1873 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1874 int sense_key, error_code, asc, ascq; 1875 1876 scsi_extract_sense(&ccb->csio.sense_data, 1877 &error_code, &sense_key, &asc, &ascq); 1878 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1879 error = cmd6workaround(ccb); 1880 } 1881 if (error == ERESTART) 1882 return (ERESTART); 1883 1884 /* 1885 * XXX 1886 * Until we have a better way of doing pack validation, 1887 * don't treat UAs as errors. 1888 */ 1889 sense_flags |= SF_RETRY_UA; 1890 return(cam_periph_error(ccb, cam_flags, sense_flags, 1891 &softc->saved_ccb)); 1892 } 1893 1894 static void 1895 daprevent(struct cam_periph *periph, int action) 1896 { 1897 struct da_softc *softc; 1898 union ccb *ccb; 1899 int error; 1900 1901 softc = (struct da_softc *)periph->softc; 1902 1903 if (((action == PR_ALLOW) 1904 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1905 || ((action == PR_PREVENT) 1906 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1907 return; 1908 } 1909 1910 ccb = cam_periph_getccb(periph, /*priority*/1); 1911 1912 scsi_prevent(&ccb->csio, 1913 /*retries*/1, 1914 /*cbcfp*/dadone, 1915 MSG_SIMPLE_Q_TAG, 1916 action, 1917 SSD_FULL_SIZE, 1918 5000); 1919 1920 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 1921 /*sense_flags*/0, &softc->device_stats); 1922 1923 if (error == 0) { 1924 if (action == PR_ALLOW) 1925 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1926 else 1927 softc->flags |= DA_FLAG_PACK_LOCKED; 1928 } 1929 1930 xpt_release_ccb(ccb); 1931 } 1932 1933 static int 1934 dagetcapacity(struct cam_periph *periph) 1935 { 1936 struct da_softc *softc; 1937 union ccb *ccb; 1938 struct scsi_read_capacity_data *rcap; 1939 struct scsi_read_capacity_data_long *rcaplong; 1940 uint32_t block_len; 1941 uint64_t maxsector; 1942 int error; 1943 1944 softc = (struct da_softc *)periph->softc; 1945 block_len = 0; 1946 maxsector = 0; 1947 error = 0; 1948 1949 /* Do a read capacity */ 1950 rcap = (void *)kmalloc(sizeof(*rcaplong), M_TEMP, M_INTWAIT); 1951 1952 ccb = cam_periph_getccb(periph, /*priority*/1); 1953 scsi_read_capacity(&ccb->csio, 1954 /*retries*/4, 1955 /*cbfncp*/dadone, 1956 MSG_SIMPLE_Q_TAG, 1957 rcap, 1958 SSD_FULL_SIZE, 1959 /*timeout*/60000); 1960 ccb->ccb_h.ccb_bio = NULL; 1961 1962 error = cam_periph_runccb(ccb, daerror, 1963 /*cam_flags*/SF_RETRY_SELTO, 1964 /*sense_flags*/SF_RETRY_UA, 1965 &softc->device_stats); 1966 1967 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1968 cam_release_devq(ccb->ccb_h.path, 1969 /*relsim_flags*/0, 1970 /*reduction*/0, 1971 /*timeout*/0, 1972 /*getcount_only*/0); 1973 1974 if (error == 0) { 1975 block_len = scsi_4btoul(rcap->length); 1976 maxsector = scsi_4btoul(rcap->addr); 1977 1978 if (maxsector != 0xffffffff) 1979 goto done; 1980 } else 1981 goto done; 1982 1983 rcaplong = (struct scsi_read_capacity_data_long *)rcap; 1984 1985 scsi_read_capacity_16(&ccb->csio, 1986 /*retries*/ 4, 1987 /*cbfcnp*/ dadone, 1988 /*tag_action*/ MSG_SIMPLE_Q_TAG, 1989 /*lba*/ 0, 1990 /*reladr*/ 0, 1991 /*pmi*/ 0, 1992 rcaplong, 1993 /*sense_len*/ SSD_FULL_SIZE, 1994 /*timeout*/ 60000); 1995 ccb->ccb_h.ccb_bio = NULL; 1996 1997 error = cam_periph_runccb(ccb, daerror, 1998 /*cam_flags*/SF_RETRY_SELTO, 1999 /*sense_flags*/SF_RETRY_UA, 2000 &softc->device_stats); 2001 2002 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 2003 cam_release_devq(ccb->ccb_h.path, 2004 /*relsim_flags*/0, 2005 /*reduction*/0, 2006 /*timeout*/0, 2007 /*getcount_only*/0); 2008 2009 if (error == 0) { 2010 block_len = scsi_4btoul(rcaplong->length); 2011 maxsector = scsi_8btou64(rcaplong->addr); 2012 } 2013 2014 done: 2015 2016 if (error == 0) 2017 dasetgeom(periph, block_len, maxsector); 2018 2019 xpt_release_ccb(ccb); 2020 2021 kfree(rcap, M_TEMP); 2022 2023 return (error); 2024 } 2025 2026 static void 2027 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector) 2028 { 2029 struct ccb_calc_geometry ccg; 2030 struct da_softc *softc; 2031 struct disk_params *dp; 2032 2033 softc = (struct da_softc *)periph->softc; 2034 2035 dp = &softc->params; 2036 dp->secsize = block_len; 2037 dp->sectors = maxsector + 1; 2038 /* 2039 * Have the controller provide us with a geometry 2040 * for this disk. The only time the geometry 2041 * matters is when we boot and the controller 2042 * is the only one knowledgeable enough to come 2043 * up with something that will make this a bootable 2044 * device. 2045 */ 2046 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 2047 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 2048 ccg.block_size = dp->secsize; 2049 ccg.volume_size = dp->sectors; 2050 ccg.heads = 0; 2051 ccg.secs_per_track = 0; 2052 ccg.cylinders = 0; 2053 xpt_action((union ccb*)&ccg); 2054 dp->heads = ccg.heads; 2055 dp->secs_per_track = ccg.secs_per_track; 2056 dp->cylinders = ccg.cylinders; 2057 } 2058 2059 static void 2060 dasendorderedtag(void *arg) 2061 { 2062 struct da_softc *softc; 2063 2064 for (softc = SLIST_FIRST(&softc_list); 2065 softc != NULL; 2066 softc = SLIST_NEXT(softc, links)) { 2067 crit_enter(); 2068 if ((softc->ordered_tag_count == 0) 2069 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 2070 softc->flags |= DA_FLAG_NEED_OTAG; 2071 } 2072 if (softc->device_stats.busy_count > 0) 2073 softc->flags &= ~DA_FLAG_WENT_IDLE; 2074 2075 softc->ordered_tag_count = 0; 2076 crit_exit(); 2077 } 2078 /* Queue us up again */ 2079 callout_reset(&dasendorderedtag_ch, 2080 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL, 2081 dasendorderedtag, NULL); 2082 } 2083 2084 /* 2085 * Step through all DA peripheral drivers, and if the device is still open, 2086 * sync the disk cache to physical media. 2087 */ 2088 static void 2089 dashutdown(void * arg, int howto) 2090 { 2091 struct cam_periph *periph; 2092 struct da_softc *softc; 2093 2094 TAILQ_FOREACH(periph, &dadriver.units, unit_links) { 2095 union ccb ccb; 2096 2097 softc = (struct da_softc *)periph->softc; 2098 2099 /* 2100 * We only sync the cache if the drive is still open, and 2101 * if the drive is capable of it.. 2102 */ 2103 if (((softc->flags & DA_FLAG_OPEN) == 0) 2104 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 2105 continue; 2106 2107 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 2108 2109 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 2110 scsi_synchronize_cache(&ccb.csio, 2111 /*retries*/1, 2112 /*cbfcnp*/dadone, 2113 MSG_SIMPLE_Q_TAG, 2114 /*begin_lba*/0, /* whole disk */ 2115 /*lb_count*/0, 2116 SSD_FULL_SIZE, 2117 5 * 60 * 1000); 2118 2119 xpt_polled_action(&ccb); 2120 2121 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 2122 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 2123 CAM_SCSI_STATUS_ERROR) 2124 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 2125 int error_code, sense_key, asc, ascq; 2126 2127 scsi_extract_sense(&ccb.csio.sense_data, 2128 &error_code, &sense_key, 2129 &asc, &ascq); 2130 2131 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 2132 scsi_sense_print(&ccb.csio); 2133 } else { 2134 xpt_print_path(periph->path); 2135 kprintf("Synchronize cache failed, status " 2136 "== 0x%x, scsi status == 0x%x\n", 2137 ccb.ccb_h.status, ccb.csio.scsi_status); 2138 } 2139 } 2140 2141 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 2142 cam_release_devq(ccb.ccb_h.path, 2143 /*relsim_flags*/0, 2144 /*reduction*/0, 2145 /*timeout*/0, 2146 /*getcount_only*/0); 2147 2148 } 2149 } 2150 2151 #else /* !_KERNEL */ 2152 2153 /* 2154 * XXX This is only left out of the kernel build to silence warnings. If, 2155 * for some reason this function is used in the kernel, the ifdefs should 2156 * be moved so it is included both in the kernel and userland. 2157 */ 2158 void 2159 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 2160 void (*cbfcnp)(struct cam_periph *, union ccb *), 2161 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 2162 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 2163 u_int32_t timeout) 2164 { 2165 struct scsi_format_unit *scsi_cmd; 2166 2167 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 2168 scsi_cmd->opcode = FORMAT_UNIT; 2169 scsi_cmd->byte2 = byte2; 2170 scsi_ulto2b(ileave, scsi_cmd->interleave); 2171 2172 cam_fill_csio(csio, 2173 retries, 2174 cbfcnp, 2175 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 2176 tag_action, 2177 data_ptr, 2178 dxfer_len, 2179 sense_len, 2180 sizeof(*scsi_cmd), 2181 timeout); 2182 } 2183 2184 #endif /* _KERNEL */ 2185