Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_da.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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 * $FreeBSD$ 29 */ 30 31 #ifdef _KERNEL 32 #include "opt_hw_wdog.h" 33 #endif /* _KERNEL */ 34 35 #include <sys/param.h> 36 37 #ifdef _KERNEL 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/buf.h> 41 #include <sys/sysctl.h> 42 #include <sys/taskqueue.h> 43 #endif /* _KERNEL */ 44 45 #include <sys/devicestat.h> 46 #include <sys/conf.h> 47 #include <sys/disk.h> 48 #include <sys/eventhandler.h> 49 #include <sys/malloc.h> 50 #include <sys/cons.h> 51 52 #include <machine/md_var.h> 53 54 #include <vm/vm.h> 55 #include <vm/pmap.h> 56 57 #ifndef _KERNEL 58 #include <stdio.h> 59 #include <string.h> 60 #endif /* _KERNEL */ 61 62 #include <cam/cam.h> 63 #include <cam/cam_ccb.h> 64 #include <cam/cam_extend.h> 65 #include <cam/cam_periph.h> 66 #include <cam/cam_xpt_periph.h> 67 68 #include <cam/scsi/scsi_message.h> 69 70 #ifndef _KERNEL 71 #include <cam/scsi/scsi_da.h> 72 #endif /* !_KERNEL */ 73 74 #ifdef _KERNEL 75 typedef enum { 76 DA_STATE_PROBE, 77 DA_STATE_NORMAL 78 } da_state; 79 80 typedef enum { 81 DA_FLAG_PACK_INVALID = 0x001, 82 DA_FLAG_NEW_PACK = 0x002, 83 DA_FLAG_PACK_LOCKED = 0x004, 84 DA_FLAG_PACK_REMOVABLE = 0x008, 85 DA_FLAG_TAGGED_QUEUING = 0x010, 86 DA_FLAG_NEED_OTAG = 0x020, 87 DA_FLAG_WENT_IDLE = 0x040, 88 DA_FLAG_RETRY_UA = 0x080, 89 DA_FLAG_OPEN = 0x100, 90 DA_FLAG_SCTX_INIT = 0x200 91 } da_flags; 92 93 typedef enum { 94 DA_Q_NONE = 0x00, 95 DA_Q_NO_SYNC_CACHE = 0x01, 96 DA_Q_NO_6_BYTE = 0x02, 97 DA_Q_NO_PREVENT = 0x04 98 } da_quirks; 99 100 typedef enum { 101 DA_CCB_PROBE = 0x01, 102 DA_CCB_BUFFER_IO = 0x02, 103 DA_CCB_WAITING = 0x03, 104 DA_CCB_DUMP = 0x04, 105 DA_CCB_TYPE_MASK = 0x0F, 106 DA_CCB_RETRY_UA = 0x10 107 } da_ccb_state; 108 109 /* Offsets into our private area for storing information */ 110 #define ccb_state ppriv_field0 111 #define ccb_bp ppriv_ptr1 112 113 struct disk_params { 114 u_int8_t heads; 115 u_int16_t cylinders; 116 u_int8_t secs_per_track; 117 u_int32_t secsize; /* Number of bytes/sector */ 118 u_int32_t sectors; /* total number sectors */ 119 }; 120 121 struct da_softc { 122 struct buf_queue_head buf_queue; 123 struct devstat device_stats; 124 SLIST_ENTRY(da_softc) links; 125 LIST_HEAD(, ccb_hdr) pending_ccbs; 126 da_state state; 127 da_flags flags; 128 da_quirks quirks; 129 int minimum_cmd_size; 130 int ordered_tag_count; 131 struct disk_params params; 132 struct disk disk; 133 union ccb saved_ccb; 134 struct task sysctl_task; 135 struct sysctl_ctx_list sysctl_ctx; 136 struct sysctl_oid *sysctl_tree; 137 }; 138 139 struct da_quirk_entry { 140 struct scsi_inquiry_pattern inq_pat; 141 da_quirks quirks; 142 }; 143 144 static const char quantum[] = "QUANTUM"; 145 static const char microp[] = "MICROP"; 146 147 static struct da_quirk_entry da_quirk_table[] = 148 { 149 /* SPI, FC devices */ 150 { 151 /* 152 * Fujitsu M2513A MO drives. 153 * Tested devices: M2513A2 firmware versions 1200 & 1300. 154 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 155 * Reported by: W.Scholten <whs@xs4all.nl> 156 */ 157 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 158 /*quirks*/ DA_Q_NO_SYNC_CACHE 159 }, 160 { 161 /* See above. */ 162 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 163 /*quirks*/ DA_Q_NO_SYNC_CACHE 164 }, 165 { 166 /* 167 * This particular Fujitsu drive doesn't like the 168 * synchronize cache command. 169 * Reported by: Tom Jackson <toj@gorilla.net> 170 */ 171 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 172 /*quirks*/ DA_Q_NO_SYNC_CACHE 173 174 }, 175 { 176 /* 177 * This drive doesn't like the synchronize cache command 178 * either. Reported by: Matthew Jacob <mjacob@feral.com> 179 * in NetBSD PR kern/6027, August 24, 1998. 180 */ 181 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 182 /*quirks*/ DA_Q_NO_SYNC_CACHE 183 }, 184 { 185 /* 186 * This drive doesn't like the synchronize cache command 187 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 188 * (PR 8882). 189 */ 190 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 191 /*quirks*/ DA_Q_NO_SYNC_CACHE 192 }, 193 { 194 /* 195 * Doesn't like the synchronize cache command. 196 * Reported by: Blaz Zupan <blaz@gold.amis.net> 197 */ 198 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 199 /*quirks*/ DA_Q_NO_SYNC_CACHE 200 }, 201 { 202 /* 203 * Doesn't like the synchronize cache command. 204 */ 205 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 206 /*quirks*/ DA_Q_NO_SYNC_CACHE 207 }, 208 { 209 /* 210 * Doesn't like the synchronize cache command. 211 */ 212 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 213 /*quirks*/ DA_Q_NO_SYNC_CACHE 214 }, 215 { 216 /* 217 * Doesn't work correctly with 6 byte reads/writes. 218 * Returns illegal request, and points to byte 9 of the 219 * 6-byte CDB. 220 * Reported by: Adam McDougall <bsdx@spawnet.com> 221 */ 222 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 223 /*quirks*/ DA_Q_NO_6_BYTE 224 }, 225 { 226 /* See above. */ 227 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 228 /*quirks*/ DA_Q_NO_6_BYTE 229 }, 230 { 231 /* 232 * The CISS RAID controllers do not support SYNC_CACHE 233 */ 234 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 235 /*quirks*/ DA_Q_NO_SYNC_CACHE 236 }, 237 /* XXX USB floppy quirks temporarily enabled for 4.9R */ 238 /* USB floppy devices supported by umass(4) */ 239 { 240 /* 241 * This USB floppy drive uses the UFI command set. This 242 * command set is a derivative of the ATAPI command set and 243 * does not support READ_6 commands only READ_10. It also does 244 * not support sync cache (0x35). 245 */ 246 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 247 /*quirks*/ DA_Q_NO_SYNC_CACHE 248 }, 249 { 250 /* Another USB floppy */ 251 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 252 /*quirks*/ DA_Q_NO_SYNC_CACHE 253 }, 254 { 255 /* 256 * The vendor, product and version strings coming from the 257 * controller are null terminated instead of being padded with 258 * spaces. The trailing wildcard character '*' is required. 259 */ 260 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 261 /*quirks*/ DA_Q_NO_SYNC_CACHE 262 }, 263 { 264 /* 265 * SmartDisk (Mitsumi) USB floppy drive 266 * PR: kern/50226 267 */ 268 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 269 /*quirks*/ DA_Q_NO_SYNC_CACHE 270 }, 271 /* USB mass storage devices supported by umass(4) */ 272 { 273 /* 274 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 275 * PR: kern/51675 276 */ 277 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 278 /*quirks*/ DA_Q_NO_SYNC_CACHE 279 }, 280 { 281 /* 282 * Power Quotient Int. (PQI) USB flash key 283 * PR: kern/53067 284 */ 285 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*", 286 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 287 }, 288 { 289 /* 290 * Creative Nomad MUVO mp3 player (USB) 291 * PR: kern/53094 292 */ 293 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 294 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 295 }, 296 { 297 /* 298 * Jungsoft NEXDISK USB flash key 299 * PR: kern/54737 300 */ 301 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 302 /*quirks*/ DA_Q_NO_SYNC_CACHE 303 }, 304 { 305 /* 306 * FreeDik USB Mini Data Drive 307 * PR: kern/54786 308 */ 309 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive", 310 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 311 }, 312 { 313 /* 314 * Sigmatel USB Flash MP3 Player 315 * PR: kern/57046 316 */ 317 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"}, 318 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 319 }, 320 { 321 /* 322 * Neuros USB Digital Audio Computer 323 * PR: kern/63645 324 */ 325 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.", 326 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE 327 }, 328 { 329 /* 330 * SEAGRAND NP-900 MP3 Player 331 * PR: kern/64563 332 */ 333 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"}, 334 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 335 }, 336 { 337 /* 338 * iRiver iFP MP3 player (with UMS Firmware) 339 * PR: kern/54881, i386/63941, kern/66124 340 */ 341 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 342 /*quirks*/ DA_Q_NO_SYNC_CACHE 343 }, 344 { 345 /* 346 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 347 * PR: kern/70158 348 */ 349 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "NexIA+*", "*"}, 350 /*quirks*/ DA_Q_NO_SYNC_CACHE 351 }, 352 }; 353 354 static d_open_t daopen; 355 static d_close_t daclose; 356 static d_strategy_t dastrategy; 357 static d_ioctl_t daioctl; 358 static d_dump_t dadump; 359 static periph_init_t dainit; 360 static void daasync(void *callback_arg, u_int32_t code, 361 struct cam_path *path, void *arg); 362 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 363 static periph_ctor_t daregister; 364 static periph_dtor_t dacleanup; 365 static periph_start_t dastart; 366 static periph_oninv_t daoninvalidate; 367 static void dadone(struct cam_periph *periph, 368 union ccb *done_ccb); 369 static int daerror(union ccb *ccb, u_int32_t cam_flags, 370 u_int32_t sense_flags); 371 static void daprevent(struct cam_periph *periph, int action); 372 static void dasetgeom(struct cam_periph *periph, 373 struct scsi_read_capacity_data * rdcap); 374 static timeout_t dasendorderedtag; 375 static void dashutdown(void *arg, int howto); 376 377 #ifndef DA_DEFAULT_TIMEOUT 378 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 379 #endif 380 381 #ifndef DA_DEFAULT_RETRY 382 #define DA_DEFAULT_RETRY 4 383 #endif 384 385 static int da_retry_count = DA_DEFAULT_RETRY; 386 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 387 388 SYSCTL_NODE(_kern, OID_AUTO, cam, CTLFLAG_RD, 0, "CAM Subsystem"); 389 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 390 "CAM Direct Access Disk driver"); 391 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 392 &da_retry_count, 0, "Normal I/O retry count"); 393 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 394 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 395 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 396 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 397 398 /* 399 * DA_ORDEREDTAG_INTERVAL determines how often, relative 400 * to the default timeout, we check to see whether an ordered 401 * tagged transaction is appropriate to prevent simple tag 402 * starvation. Since we'd like to ensure that there is at least 403 * 1/2 of the timeout length left for a starved transaction to 404 * complete after we've sent an ordered tag, we must poll at least 405 * four times in every timeout period. This takes care of the worst 406 * case where a starved transaction starts during an interval that 407 * meets the requirement "don't send an ordered tag" test so it takes 408 * us two intervals to determine that a tag must be sent. 409 */ 410 #ifndef DA_ORDEREDTAG_INTERVAL 411 #define DA_ORDEREDTAG_INTERVAL 4 412 #endif 413 414 static struct periph_driver dadriver = 415 { 416 dainit, "da", 417 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 418 }; 419 420 DATA_SET(periphdriver_set, dadriver); 421 422 #define DA_CDEV_MAJOR 13 423 #define DA_BDEV_MAJOR 4 424 425 /* For 2.2-stable support */ 426 #ifndef D_DISK 427 #define D_DISK 0 428 #endif 429 430 static struct cdevsw da_cdevsw = { 431 /* open */ daopen, 432 /* close */ daclose, 433 /* read */ physread, 434 /* write */ physwrite, 435 /* ioctl */ daioctl, 436 /* poll */ nopoll, 437 /* mmap */ nommap, 438 /* strategy */ dastrategy, 439 /* name */ "da", 440 /* maj */ DA_CDEV_MAJOR, 441 /* dump */ dadump, 442 /* psize */ nopsize, 443 /* flags */ D_DISK, 444 /* bmaj */ DA_BDEV_MAJOR 445 }; 446 447 static struct cdevsw dadisk_cdevsw; 448 449 static SLIST_HEAD(,da_softc) softc_list; 450 static struct extend_array *daperiphs; 451 452 static int 453 daopen(dev_t dev, int flags, int fmt, struct proc *p) 454 { 455 struct cam_periph *periph; 456 struct da_softc *softc; 457 struct disklabel *label; 458 int unit; 459 int part; 460 int error; 461 int s; 462 463 unit = dkunit(dev); 464 part = dkpart(dev); 465 periph = cam_extend_get(daperiphs, unit); 466 if (periph == NULL) 467 return (ENXIO); 468 469 softc = (struct da_softc *)periph->softc; 470 471 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 472 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 473 unit, part)); 474 475 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) { 476 return (error); /* error code from tsleep */ 477 } 478 479 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 480 return(ENXIO); 481 softc->flags |= DA_FLAG_OPEN; 482 483 s = splsoftcam(); 484 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 485 /* Invalidate our pack information. */ 486 disk_invalidate(&softc->disk); 487 softc->flags &= ~DA_FLAG_PACK_INVALID; 488 } 489 splx(s); 490 491 /* Do a read capacity */ 492 { 493 struct scsi_read_capacity_data *rcap; 494 union ccb *ccb; 495 496 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 497 M_TEMP, 498 M_WAITOK); 499 500 ccb = cam_periph_getccb(periph, /*priority*/1); 501 scsi_read_capacity(&ccb->csio, 502 /*retries*/1, 503 /*cbfncp*/dadone, 504 MSG_SIMPLE_Q_TAG, 505 rcap, 506 SSD_FULL_SIZE, 507 /*timeout*/60000); 508 ccb->ccb_h.ccb_bp = NULL; 509 510 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 511 /*sense_flags*/SF_RETRY_UA | 512 SF_RETRY_SELTO, 513 &softc->device_stats); 514 515 xpt_release_ccb(ccb); 516 517 if (error == 0) { 518 dasetgeom(periph, rcap); 519 } 520 521 free(rcap, M_TEMP); 522 } 523 524 if (error == 0) { 525 struct ccb_getdev cgd; 526 527 /* Build label for whole disk. */ 528 label = &softc->disk.d_label; 529 bzero(label, sizeof(*label)); 530 label->d_type = DTYPE_SCSI; 531 532 /* 533 * Grab the inquiry data to get the vendor and product names. 534 * Put them in the typename and packname for the label. 535 */ 536 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 537 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 538 xpt_action((union ccb *)&cgd); 539 540 strncpy(label->d_typename, cgd.inq_data.vendor, 541 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 542 strncpy(label->d_packname, cgd.inq_data.product, 543 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 544 545 label->d_secsize = softc->params.secsize; 546 label->d_nsectors = softc->params.secs_per_track; 547 label->d_ntracks = softc->params.heads; 548 label->d_ncylinders = softc->params.cylinders; 549 label->d_secpercyl = softc->params.heads 550 * softc->params.secs_per_track; 551 label->d_secperunit = softc->params.sectors; 552 553 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 554 (softc->quirks & DA_Q_NO_PREVENT) == 0) 555 daprevent(periph, PR_PREVENT); 556 557 /* 558 * Check to see whether or not the blocksize is set yet. 559 * If it isn't, set it and then clear the blocksize 560 * unavailable flag for the device statistics. 561 */ 562 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 563 softc->device_stats.block_size = softc->params.secsize; 564 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 565 } 566 } 567 568 if (error != 0) { 569 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 570 (softc->quirks & DA_Q_NO_PREVENT) == 0) 571 daprevent(periph, PR_ALLOW); 572 softc->flags &= ~DA_FLAG_OPEN; 573 cam_periph_release(periph); 574 } 575 cam_periph_unlock(periph); 576 return (error); 577 } 578 579 static int 580 daclose(dev_t dev, int flag, int fmt, struct proc *p) 581 { 582 struct cam_periph *periph; 583 struct da_softc *softc; 584 int unit; 585 int error; 586 587 unit = dkunit(dev); 588 periph = cam_extend_get(daperiphs, unit); 589 if (periph == NULL) 590 return (ENXIO); 591 592 softc = (struct da_softc *)periph->softc; 593 594 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 595 return (error); /* error code from tsleep */ 596 } 597 598 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 599 union ccb *ccb; 600 601 ccb = cam_periph_getccb(periph, /*priority*/1); 602 603 scsi_synchronize_cache(&ccb->csio, 604 /*retries*/1, 605 /*cbfcnp*/dadone, 606 MSG_SIMPLE_Q_TAG, 607 /*begin_lba*/0,/* Cover the whole disk */ 608 /*lb_count*/0, 609 SSD_FULL_SIZE, 610 5 * 60 * 1000); 611 612 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 613 /*sense_flags*/SF_RETRY_UA, 614 &softc->device_stats); 615 616 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 617 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 618 CAM_SCSI_STATUS_ERROR) { 619 int asc, ascq; 620 int sense_key, error_code; 621 622 scsi_extract_sense(&ccb->csio.sense_data, 623 &error_code, 624 &sense_key, 625 &asc, &ascq); 626 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 627 scsi_sense_print(&ccb->csio); 628 } else { 629 xpt_print_path(periph->path); 630 printf("Synchronize cache failed, status " 631 "== 0x%x, scsi status == 0x%x\n", 632 ccb->csio.ccb_h.status, 633 ccb->csio.scsi_status); 634 } 635 } 636 637 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 638 cam_release_devq(ccb->ccb_h.path, 639 /*relsim_flags*/0, 640 /*reduction*/0, 641 /*timeout*/0, 642 /*getcount_only*/0); 643 644 xpt_release_ccb(ccb); 645 646 } 647 648 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 649 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 650 daprevent(periph, PR_ALLOW); 651 /* 652 * If we've got removeable media, mark the blocksize as 653 * unavailable, since it could change when new media is 654 * inserted. 655 */ 656 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 657 } 658 659 softc->flags &= ~DA_FLAG_OPEN; 660 cam_periph_unlock(periph); 661 cam_periph_release(periph); 662 return (0); 663 } 664 665 /* 666 * Actually translate the requested transfer into one the physical driver 667 * can understand. The transfer is described by a buf and will include 668 * only one physical transfer. 669 */ 670 static void 671 dastrategy(struct buf *bp) 672 { 673 struct cam_periph *periph; 674 struct da_softc *softc; 675 u_int unit; 676 u_int part; 677 int s; 678 679 unit = dkunit(bp->b_dev); 680 part = dkpart(bp->b_dev); 681 periph = cam_extend_get(daperiphs, unit); 682 if (periph == NULL) { 683 bp->b_error = ENXIO; 684 goto bad; 685 } 686 softc = (struct da_softc *)periph->softc; 687 #if 0 688 /* 689 * check it's not too big a transfer for our adapter 690 */ 691 scsi_minphys(bp,&sd_switch); 692 #endif 693 694 /* 695 * Mask interrupts so that the pack cannot be invalidated until 696 * after we are in the queue. Otherwise, we might not properly 697 * clean up one of the buffers. 698 */ 699 s = splbio(); 700 701 /* 702 * If the device has been made invalid, error out 703 */ 704 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 705 splx(s); 706 bp->b_error = ENXIO; 707 goto bad; 708 } 709 710 /* 711 * Place it in the queue of disk activities for this disk 712 */ 713 bufqdisksort(&softc->buf_queue, bp); 714 715 splx(s); 716 717 /* 718 * Schedule ourselves for performing the work. 719 */ 720 xpt_schedule(periph, /* XXX priority */1); 721 722 return; 723 bad: 724 bp->b_flags |= B_ERROR; 725 726 /* 727 * Correctly set the buf to indicate a completed xfer 728 */ 729 bp->b_resid = bp->b_bcount; 730 biodone(bp); 731 return; 732 } 733 734 /* For 2.2-stable support */ 735 #ifndef ENOIOCTL 736 #define ENOIOCTL -1 737 #endif 738 739 static int 740 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 741 { 742 struct cam_periph *periph; 743 struct da_softc *softc; 744 int unit; 745 int error; 746 747 unit = dkunit(dev); 748 periph = cam_extend_get(daperiphs, unit); 749 if (periph == NULL) 750 return (ENXIO); 751 752 softc = (struct da_softc *)periph->softc; 753 754 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 755 756 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) { 757 return (error); /* error code from tsleep */ 758 } 759 760 error = cam_periph_ioctl(periph, cmd, addr, daerror); 761 762 cam_periph_unlock(periph); 763 764 return (error); 765 } 766 767 static int 768 dadump(dev_t dev) 769 { 770 struct cam_periph *periph; 771 struct da_softc *softc; 772 u_int unit; 773 u_int part; 774 u_int secsize; 775 u_int num; /* number of sectors to write */ 776 u_int blknum; 777 long blkcnt; 778 vm_paddr_t addr; 779 struct ccb_scsiio csio; 780 int dumppages = MAXDUMPPGS; 781 int error; 782 int i; 783 784 /* toss any characters present prior to dump */ 785 while (cncheckc() != -1) 786 ; 787 788 unit = dkunit(dev); 789 part = dkpart(dev); 790 periph = cam_extend_get(daperiphs, unit); 791 if (periph == NULL) { 792 return (ENXIO); 793 } 794 softc = (struct da_softc *)periph->softc; 795 796 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 797 return (ENXIO); 798 799 error = disk_dumpcheck(dev, &num, &blknum, &secsize); 800 if (error) 801 return (error); 802 803 addr = 0; /* starting address */ 804 blkcnt = howmany(PAGE_SIZE, secsize); 805 806 while (num > 0) { 807 caddr_t va = NULL; 808 809 if ((num / blkcnt) < dumppages) 810 dumppages = num / blkcnt; 811 812 for (i = 0; i < dumppages; ++i) { 813 vm_paddr_t a = addr + (i * PAGE_SIZE); 814 if (is_physical_memory(a)) 815 va = pmap_kenter_temporary(trunc_page(a), i); 816 else 817 va = pmap_kenter_temporary(trunc_page(0), i); 818 } 819 820 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 821 csio.ccb_h.ccb_state = DA_CCB_DUMP; 822 scsi_read_write(&csio, 823 /*retries*/1, 824 dadone, 825 MSG_ORDERED_Q_TAG, 826 /*read*/FALSE, 827 /*byte2*/0, 828 /*minimum_cmd_size*/ softc->minimum_cmd_size, 829 blknum, 830 blkcnt * dumppages, 831 /*data_ptr*/(u_int8_t *) va, 832 /*dxfer_len*/blkcnt * secsize * dumppages, 833 /*sense_len*/SSD_FULL_SIZE, 834 DA_DEFAULT_TIMEOUT * 1000); 835 xpt_polled_action((union ccb *)&csio); 836 837 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 838 printf("Aborting dump due to I/O error.\n"); 839 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 840 CAM_SCSI_STATUS_ERROR) 841 scsi_sense_print(&csio); 842 else 843 printf("status == 0x%x, scsi status == 0x%x\n", 844 csio.ccb_h.status, csio.scsi_status); 845 return(EIO); 846 } 847 848 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0) 849 return (EINTR); 850 851 /* update block count */ 852 num -= blkcnt * dumppages; 853 blknum += blkcnt * dumppages; 854 addr += PAGE_SIZE * dumppages; 855 } 856 857 /* 858 * Sync the disk cache contents to the physical media. 859 */ 860 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 861 862 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 863 csio.ccb_h.ccb_state = DA_CCB_DUMP; 864 scsi_synchronize_cache(&csio, 865 /*retries*/1, 866 /*cbfcnp*/dadone, 867 MSG_SIMPLE_Q_TAG, 868 /*begin_lba*/0,/* Cover the whole disk */ 869 /*lb_count*/0, 870 SSD_FULL_SIZE, 871 5 * 60 * 1000); 872 xpt_polled_action((union ccb *)&csio); 873 874 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 875 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 876 CAM_SCSI_STATUS_ERROR) { 877 int asc, ascq; 878 int sense_key, error_code; 879 880 scsi_extract_sense(&csio.sense_data, 881 &error_code, 882 &sense_key, 883 &asc, &ascq); 884 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 885 scsi_sense_print(&csio); 886 } else { 887 xpt_print_path(periph->path); 888 printf("Synchronize cache failed, status " 889 "== 0x%x, scsi status == 0x%x\n", 890 csio.ccb_h.status, csio.scsi_status); 891 } 892 } 893 } 894 return (0); 895 } 896 897 static void 898 dainit(void) 899 { 900 cam_status status; 901 struct cam_path *path; 902 903 /* 904 * Create our extend array for storing the devices we attach to. 905 */ 906 daperiphs = cam_extend_new(); 907 SLIST_INIT(&softc_list); 908 if (daperiphs == NULL) { 909 printf("da: Failed to alloc extend array!\n"); 910 return; 911 } 912 913 /* 914 * Install a global async callback. This callback will 915 * receive async callbacks like "new device found". 916 */ 917 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 918 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 919 920 if (status == CAM_REQ_CMP) { 921 struct ccb_setasync csa; 922 923 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 924 csa.ccb_h.func_code = XPT_SASYNC_CB; 925 csa.event_enable = AC_FOUND_DEVICE; 926 csa.callback = daasync; 927 csa.callback_arg = NULL; 928 xpt_action((union ccb *)&csa); 929 status = csa.ccb_h.status; 930 xpt_free_path(path); 931 } 932 933 if (status != CAM_REQ_CMP) { 934 printf("da: Failed to attach master async callback " 935 "due to status 0x%x!\n", status); 936 } else { 937 938 /* 939 * Schedule a periodic event to occasionally send an 940 * ordered tag to a device. 941 */ 942 timeout(dasendorderedtag, NULL, 943 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 944 945 /* Register our shutdown event handler */ 946 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 947 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 948 printf("dainit: shutdown event registration failed!\n"); 949 } 950 } 951 952 static void 953 daoninvalidate(struct cam_periph *periph) 954 { 955 int s; 956 struct da_softc *softc; 957 struct buf *q_bp; 958 struct ccb_setasync csa; 959 960 softc = (struct da_softc *)periph->softc; 961 962 /* 963 * De-register any async callbacks. 964 */ 965 xpt_setup_ccb(&csa.ccb_h, periph->path, 966 /* priority */ 5); 967 csa.ccb_h.func_code = XPT_SASYNC_CB; 968 csa.event_enable = 0; 969 csa.callback = daasync; 970 csa.callback_arg = periph; 971 xpt_action((union ccb *)&csa); 972 973 softc->flags |= DA_FLAG_PACK_INVALID; 974 975 /* 976 * Although the oninvalidate() routines are always called at 977 * splsoftcam, we need to be at splbio() here to keep the buffer 978 * queue from being modified while we traverse it. 979 */ 980 s = splbio(); 981 982 /* 983 * Return all queued I/O with ENXIO. 984 * XXX Handle any transactions queued to the card 985 * with XPT_ABORT_CCB. 986 */ 987 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 988 bufq_remove(&softc->buf_queue, q_bp); 989 q_bp->b_resid = q_bp->b_bcount; 990 q_bp->b_error = ENXIO; 991 q_bp->b_flags |= B_ERROR; 992 biodone(q_bp); 993 } 994 splx(s); 995 996 SLIST_REMOVE(&softc_list, softc, da_softc, links); 997 998 xpt_print_path(periph->path); 999 printf("lost device\n"); 1000 } 1001 1002 static void 1003 dacleanup(struct cam_periph *periph) 1004 { 1005 struct da_softc *softc; 1006 1007 softc = (struct da_softc *)periph->softc; 1008 1009 devstat_remove_entry(&softc->device_stats); 1010 cam_extend_release(daperiphs, periph->unit_number); 1011 xpt_print_path(periph->path); 1012 printf("removing device entry\n"); 1013 /* 1014 * If we can't free the sysctl tree, oh well... 1015 */ 1016 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1017 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1018 xpt_print_path(periph->path); 1019 printf("can't remove sysctl context\n"); 1020 } 1021 if (softc->disk.d_dev) { 1022 disk_destroy(softc->disk.d_dev); 1023 } 1024 free(softc, M_DEVBUF); 1025 } 1026 1027 static void 1028 daasync(void *callback_arg, u_int32_t code, 1029 struct cam_path *path, void *arg) 1030 { 1031 struct cam_periph *periph; 1032 1033 periph = (struct cam_periph *)callback_arg; 1034 switch (code) { 1035 case AC_FOUND_DEVICE: 1036 { 1037 struct ccb_getdev *cgd; 1038 cam_status status; 1039 1040 cgd = (struct ccb_getdev *)arg; 1041 1042 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1043 && SID_TYPE(&cgd->inq_data) != T_RBC 1044 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1045 break; 1046 1047 /* 1048 * Allocate a peripheral instance for 1049 * this device and start the probe 1050 * process. 1051 */ 1052 status = cam_periph_alloc(daregister, daoninvalidate, 1053 dacleanup, dastart, 1054 "da", CAM_PERIPH_BIO, 1055 cgd->ccb_h.path, daasync, 1056 AC_FOUND_DEVICE, cgd); 1057 1058 if (status != CAM_REQ_CMP 1059 && status != CAM_REQ_INPROG) 1060 printf("daasync: Unable to attach to new device " 1061 "due to status 0x%x\n", status); 1062 break; 1063 } 1064 case AC_SENT_BDR: 1065 case AC_BUS_RESET: 1066 { 1067 struct da_softc *softc; 1068 struct ccb_hdr *ccbh; 1069 int s; 1070 1071 softc = (struct da_softc *)periph->softc; 1072 s = splsoftcam(); 1073 /* 1074 * Don't fail on the expected unit attention 1075 * that will occur. 1076 */ 1077 softc->flags |= DA_FLAG_RETRY_UA; 1078 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 1079 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 1080 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1081 splx(s); 1082 /* FALLTHROUGH*/ 1083 } 1084 default: 1085 cam_periph_async(periph, code, path, arg); 1086 break; 1087 } 1088 } 1089 1090 static void 1091 dasysctlinit(void *context, int pending) 1092 { 1093 struct cam_periph *periph; 1094 struct da_softc *softc; 1095 char tmpstr[80], tmpstr2[80]; 1096 1097 periph = (struct cam_periph *)context; 1098 softc = (struct da_softc *)periph->softc; 1099 1100 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1101 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1102 1103 sysctl_ctx_init(&softc->sysctl_ctx); 1104 softc->flags |= DA_FLAG_SCTX_INIT; 1105 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1106 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1107 CTLFLAG_RD, 0, tmpstr); 1108 if (softc->sysctl_tree == NULL) { 1109 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1110 return; 1111 } 1112 1113 /* 1114 * Now register the sysctl handler, so the user can the value on 1115 * the fly. 1116 */ 1117 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1118 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1119 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1120 "Minimum CDB size"); 1121 } 1122 1123 static int 1124 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1125 { 1126 int error, value; 1127 1128 value = *(int *)arg1; 1129 1130 error = sysctl_handle_int(oidp, &value, 0, req); 1131 1132 if ((error != 0) 1133 || (req->newptr == NULL)) 1134 return (error); 1135 1136 /* 1137 * Acceptable values here are 6, 10 or 12. It's possible we may 1138 * support a 16 byte minimum command size in the future, since 1139 * there are now READ(16) and WRITE(16) commands defined in the 1140 * SBC-2 spec. 1141 */ 1142 if (value < 6) 1143 value = 6; 1144 else if ((value > 6) 1145 && (value <= 10)) 1146 value = 10; 1147 else if (value > 10) 1148 value = 12; 1149 1150 *(int *)arg1 = value; 1151 1152 return (0); 1153 } 1154 1155 static cam_status 1156 daregister(struct cam_periph *periph, void *arg) 1157 { 1158 int s; 1159 struct da_softc *softc; 1160 struct ccb_setasync csa; 1161 struct ccb_pathinq cpi; 1162 struct ccb_getdev *cgd; 1163 char tmpstr[80]; 1164 caddr_t match; 1165 1166 cgd = (struct ccb_getdev *)arg; 1167 if (periph == NULL) { 1168 printf("daregister: periph was NULL!!\n"); 1169 return(CAM_REQ_CMP_ERR); 1170 } 1171 1172 if (cgd == NULL) { 1173 printf("daregister: no getdev CCB, can't register device\n"); 1174 return(CAM_REQ_CMP_ERR); 1175 } 1176 1177 softc = (struct da_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 1178 1179 if (softc == NULL) { 1180 printf("daregister: Unable to probe new device. " 1181 "Unable to allocate softc\n"); 1182 return(CAM_REQ_CMP_ERR); 1183 } 1184 1185 bzero(softc, sizeof(*softc)); 1186 LIST_INIT(&softc->pending_ccbs); 1187 softc->state = DA_STATE_PROBE; 1188 bufq_init(&softc->buf_queue); 1189 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1190 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1191 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1192 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1193 1194 periph->softc = softc; 1195 1196 cam_extend_set(daperiphs, periph->unit_number, periph); 1197 1198 /* 1199 * See if this device has any quirks. 1200 */ 1201 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1202 (caddr_t)da_quirk_table, 1203 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1204 sizeof(*da_quirk_table), scsi_inquiry_match); 1205 1206 if (match != NULL) 1207 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1208 else 1209 softc->quirks = DA_Q_NONE; 1210 1211 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1212 1213 /* Check if the SIM does not want 6 byte commands */ 1214 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1215 cpi.ccb_h.func_code = XPT_PATH_INQ; 1216 xpt_action((union ccb *)&cpi); 1217 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1218 softc->quirks |= DA_Q_NO_6_BYTE; 1219 1220 /* 1221 * RBC devices don't have to support READ(6), only READ(10). 1222 */ 1223 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1224 softc->minimum_cmd_size = 10; 1225 else 1226 softc->minimum_cmd_size = 6; 1227 1228 /* 1229 * Load the user's default, if any. 1230 */ 1231 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1232 periph->unit_number); 1233 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1234 1235 /* 1236 * 6, 10 and 12 are the currently permissible values. 1237 */ 1238 if (softc->minimum_cmd_size < 6) 1239 softc->minimum_cmd_size = 6; 1240 else if ((softc->minimum_cmd_size > 6) 1241 && (softc->minimum_cmd_size <= 10)) 1242 softc->minimum_cmd_size = 10; 1243 else if (softc->minimum_cmd_size > 12) 1244 softc->minimum_cmd_size = 12; 1245 1246 /* 1247 * Block our timeout handler while we 1248 * add this softc to the dev list. 1249 */ 1250 s = splsoftclock(); 1251 SLIST_INSERT_HEAD(&softc_list, softc, links); 1252 splx(s); 1253 1254 /* 1255 * The DA driver supports a blocksize, but 1256 * we don't know the blocksize until we do 1257 * a read capacity. So, set a flag to 1258 * indicate that the blocksize is 1259 * unavailable right now. We'll clear the 1260 * flag as soon as we've done a read capacity. 1261 */ 1262 devstat_add_entry(&softc->device_stats, "da", 1263 periph->unit_number, 0, 1264 DEVSTAT_BS_UNAVAILABLE, 1265 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1266 DEVSTAT_PRIORITY_DISK); 1267 1268 /* 1269 * Register this media as a disk 1270 */ 1271 disk_create(periph->unit_number, &softc->disk, 0, 1272 &da_cdevsw, &dadisk_cdevsw); 1273 1274 /* 1275 * Add async callbacks for bus reset and 1276 * bus device reset calls. I don't bother 1277 * checking if this fails as, in most cases, 1278 * the system will function just fine without 1279 * them and the only alternative would be to 1280 * not attach the device on failure. 1281 */ 1282 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1283 csa.ccb_h.func_code = XPT_SASYNC_CB; 1284 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1285 csa.callback = daasync; 1286 csa.callback_arg = periph; 1287 xpt_action((union ccb *)&csa); 1288 /* 1289 * Lock this peripheral until we are setup. 1290 * This first call can't block 1291 */ 1292 (void)cam_periph_lock(periph, PRIBIO); 1293 xpt_schedule(periph, /*priority*/5); 1294 1295 return(CAM_REQ_CMP); 1296 } 1297 1298 static void 1299 dastart(struct cam_periph *periph, union ccb *start_ccb) 1300 { 1301 struct da_softc *softc; 1302 1303 softc = (struct da_softc *)periph->softc; 1304 1305 1306 switch (softc->state) { 1307 case DA_STATE_NORMAL: 1308 { 1309 /* Pull a buffer from the queue and get going on it */ 1310 struct buf *bp; 1311 int s; 1312 1313 /* 1314 * See if there is a buf with work for us to do.. 1315 */ 1316 s = splbio(); 1317 bp = bufq_first(&softc->buf_queue); 1318 if (periph->immediate_priority <= periph->pinfo.priority) { 1319 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1320 ("queuing for immediate ccb\n")); 1321 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1322 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1323 periph_links.sle); 1324 periph->immediate_priority = CAM_PRIORITY_NONE; 1325 splx(s); 1326 wakeup(&periph->ccb_list); 1327 } else if (bp == NULL) { 1328 splx(s); 1329 xpt_release_ccb(start_ccb); 1330 } else { 1331 int oldspl; 1332 u_int8_t tag_code; 1333 1334 bufq_remove(&softc->buf_queue, bp); 1335 1336 devstat_start_transaction(&softc->device_stats); 1337 1338 if ((bp->b_flags & B_ORDERED) != 0 1339 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1340 softc->flags &= ~DA_FLAG_NEED_OTAG; 1341 softc->ordered_tag_count++; 1342 tag_code = MSG_ORDERED_Q_TAG; 1343 } else { 1344 tag_code = MSG_SIMPLE_Q_TAG; 1345 } 1346 scsi_read_write(&start_ccb->csio, 1347 /*retries*/da_retry_count, 1348 dadone, 1349 tag_code, 1350 bp->b_flags & B_READ, 1351 /*byte2*/0, 1352 softc->minimum_cmd_size, 1353 bp->b_pblkno, 1354 bp->b_bcount / softc->params.secsize, 1355 bp->b_data, 1356 bp->b_bcount, 1357 /*sense_len*/SSD_FULL_SIZE, 1358 da_default_timeout * 1000); 1359 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1360 1361 /* 1362 * Block out any asyncronous callbacks 1363 * while we touch the pending ccb list. 1364 */ 1365 oldspl = splcam(); 1366 LIST_INSERT_HEAD(&softc->pending_ccbs, 1367 &start_ccb->ccb_h, periph_links.le); 1368 splx(oldspl); 1369 1370 /* We expect a unit attention from this device */ 1371 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1372 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1373 softc->flags &= ~DA_FLAG_RETRY_UA; 1374 } 1375 1376 start_ccb->ccb_h.ccb_bp = bp; 1377 bp = bufq_first(&softc->buf_queue); 1378 splx(s); 1379 1380 xpt_action(start_ccb); 1381 } 1382 1383 if (bp != NULL) { 1384 /* Have more work to do, so ensure we stay scheduled */ 1385 xpt_schedule(periph, /* XXX priority */1); 1386 } 1387 break; 1388 } 1389 case DA_STATE_PROBE: 1390 { 1391 struct ccb_scsiio *csio; 1392 struct scsi_read_capacity_data *rcap; 1393 1394 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1395 M_TEMP, 1396 M_NOWAIT); 1397 if (rcap == NULL) { 1398 printf("dastart: Couldn't malloc read_capacity data\n"); 1399 /* da_free_periph??? */ 1400 break; 1401 } 1402 csio = &start_ccb->csio; 1403 scsi_read_capacity(csio, 1404 /*retries*/4, 1405 dadone, 1406 MSG_SIMPLE_Q_TAG, 1407 rcap, 1408 SSD_FULL_SIZE, 1409 /*timeout*/5000); 1410 start_ccb->ccb_h.ccb_bp = NULL; 1411 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1412 xpt_action(start_ccb); 1413 break; 1414 } 1415 } 1416 } 1417 1418 static int 1419 cmd6workaround(union ccb *ccb) 1420 { 1421 struct scsi_rw_6 cmd6; 1422 struct scsi_rw_10 *cmd10; 1423 struct da_softc *softc; 1424 u_int8_t *cdb; 1425 int frozen; 1426 1427 cdb = ccb->csio.cdb_io.cdb_bytes; 1428 1429 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1430 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1431 (*cdb != READ_6 && *cdb != WRITE_6)) 1432 return 0; 1433 1434 xpt_print_path(ccb->ccb_h.path); 1435 printf("READ(6)/WRITE(6) not supported, " 1436 "increasing minimum_cmd_size to 10.\n"); 1437 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1438 softc->minimum_cmd_size = 10; 1439 1440 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1441 cmd10 = (struct scsi_rw_10 *)cdb; 1442 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1443 cmd10->byte2 = 0; 1444 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1445 cmd10->reserved = 0; 1446 scsi_ulto2b(cmd6.length, cmd10->length); 1447 cmd10->control = cmd6.control; 1448 ccb->csio.cdb_len = sizeof(*cmd10); 1449 1450 /* Requeue request, unfreezing queue if necessary */ 1451 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1452 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1453 xpt_action(ccb); 1454 if (frozen) { 1455 cam_release_devq(ccb->ccb_h.path, 1456 /*relsim_flags*/0, 1457 /*reduction*/0, 1458 /*timeout*/0, 1459 /*getcount_only*/0); 1460 } 1461 return (ERESTART); 1462 } 1463 1464 static void 1465 dadone(struct cam_periph *periph, union ccb *done_ccb) 1466 { 1467 struct da_softc *softc; 1468 struct ccb_scsiio *csio; 1469 1470 softc = (struct da_softc *)periph->softc; 1471 csio = &done_ccb->csio; 1472 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1473 case DA_CCB_BUFFER_IO: 1474 { 1475 struct buf *bp; 1476 int oldspl; 1477 1478 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1479 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1480 int error; 1481 int s; 1482 int sf; 1483 1484 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1485 sf = SF_RETRY_UA; 1486 else 1487 sf = 0; 1488 1489 /* Retry selection timeouts */ 1490 sf |= SF_RETRY_SELTO; 1491 1492 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) { 1493 /* 1494 * A retry was scheuled, so 1495 * just return. 1496 */ 1497 return; 1498 } 1499 if (error != 0) { 1500 struct buf *q_bp; 1501 1502 s = splbio(); 1503 1504 if (error == ENXIO) { 1505 /* 1506 * Catastrophic error. Mark our pack as 1507 * invalid. 1508 */ 1509 /* XXX See if this is really a media 1510 * change first. 1511 */ 1512 xpt_print_path(periph->path); 1513 printf("Invalidating pack\n"); 1514 softc->flags |= DA_FLAG_PACK_INVALID; 1515 } 1516 1517 /* 1518 * return all queued I/O with EIO, so that 1519 * the client can retry these I/Os in the 1520 * proper order should it attempt to recover. 1521 */ 1522 while ((q_bp = bufq_first(&softc->buf_queue)) 1523 != NULL) { 1524 bufq_remove(&softc->buf_queue, q_bp); 1525 q_bp->b_resid = q_bp->b_bcount; 1526 q_bp->b_error = EIO; 1527 q_bp->b_flags |= B_ERROR; 1528 biodone(q_bp); 1529 } 1530 splx(s); 1531 bp->b_error = error; 1532 bp->b_resid = bp->b_bcount; 1533 bp->b_flags |= B_ERROR; 1534 } else { 1535 bp->b_resid = csio->resid; 1536 bp->b_error = 0; 1537 if (bp->b_resid != 0) 1538 bp->b_flags |= B_ERROR; 1539 } 1540 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1541 cam_release_devq(done_ccb->ccb_h.path, 1542 /*relsim_flags*/0, 1543 /*reduction*/0, 1544 /*timeout*/0, 1545 /*getcount_only*/0); 1546 } else { 1547 bp->b_resid = csio->resid; 1548 if (csio->resid > 0) 1549 bp->b_flags |= B_ERROR; 1550 } 1551 1552 /* 1553 * Block out any asyncronous callbacks 1554 * while we touch the pending ccb list. 1555 */ 1556 oldspl = splcam(); 1557 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1558 splx(oldspl); 1559 1560 if (softc->device_stats.busy_count == 0) 1561 softc->flags |= DA_FLAG_WENT_IDLE; 1562 1563 devstat_end_transaction_buf(&softc->device_stats, bp); 1564 biodone(bp); 1565 break; 1566 } 1567 case DA_CCB_PROBE: 1568 { 1569 struct scsi_read_capacity_data *rdcap; 1570 char announce_buf[80]; 1571 1572 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1573 1574 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1575 struct disk_params *dp; 1576 1577 dasetgeom(periph, rdcap); 1578 dp = &softc->params; 1579 snprintf(announce_buf, sizeof(announce_buf), 1580 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1581 (unsigned long) (((u_int64_t)dp->secsize * 1582 dp->sectors) / (1024*1024)), dp->sectors, 1583 dp->secsize, dp->heads, dp->secs_per_track, 1584 dp->cylinders); 1585 } else { 1586 int error; 1587 1588 announce_buf[0] = '\0'; 1589 1590 /* 1591 * Retry any UNIT ATTENTION type errors. They 1592 * are expected at boot. 1593 */ 1594 error = daerror(done_ccb, 0, SF_RETRY_UA | 1595 SF_RETRY_SELTO | SF_NO_PRINT); 1596 if (error == ERESTART) { 1597 /* 1598 * A retry was scheuled, so 1599 * just return. 1600 */ 1601 return; 1602 } else if (error != 0) { 1603 struct scsi_sense_data *sense; 1604 int asc, ascq; 1605 int sense_key, error_code; 1606 int have_sense; 1607 cam_status status; 1608 struct ccb_getdev cgd; 1609 1610 /* Don't wedge this device's queue */ 1611 cam_release_devq(done_ccb->ccb_h.path, 1612 /*relsim_flags*/0, 1613 /*reduction*/0, 1614 /*timeout*/0, 1615 /*getcount_only*/0); 1616 1617 status = done_ccb->ccb_h.status; 1618 1619 xpt_setup_ccb(&cgd.ccb_h, 1620 done_ccb->ccb_h.path, 1621 /* priority */ 1); 1622 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1623 xpt_action((union ccb *)&cgd); 1624 1625 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1626 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1627 || ((status & CAM_AUTOSNS_VALID) == 0)) 1628 have_sense = FALSE; 1629 else 1630 have_sense = TRUE; 1631 1632 if (have_sense) { 1633 sense = &csio->sense_data; 1634 scsi_extract_sense(sense, &error_code, 1635 &sense_key, 1636 &asc, &ascq); 1637 } 1638 /* 1639 * Attach to anything that claims to be a 1640 * direct access or optical disk device, 1641 * as long as it doesn't return a "Logical 1642 * unit not supported" (0x25) error. 1643 */ 1644 if ((have_sense) && (asc != 0x25) 1645 && (error_code == SSD_CURRENT_ERROR)) 1646 snprintf(announce_buf, 1647 sizeof(announce_buf), 1648 "Attempt to query device " 1649 "size failed: %s, %s", 1650 scsi_sense_key_text[sense_key], 1651 scsi_sense_desc(asc,ascq, 1652 &cgd.inq_data)); 1653 else { 1654 if (have_sense) 1655 scsi_sense_print( 1656 &done_ccb->csio); 1657 else { 1658 xpt_print_path(periph->path); 1659 printf("got CAM status %#x\n", 1660 done_ccb->ccb_h.status); 1661 } 1662 1663 xpt_print_path(periph->path); 1664 printf("fatal error, failed" 1665 " to attach to device\n"); 1666 1667 /* 1668 * Free up resources. 1669 */ 1670 cam_periph_invalidate(periph); 1671 } 1672 } 1673 } 1674 free(rdcap, M_TEMP); 1675 if (announce_buf[0] != '\0') { 1676 xpt_announce_periph(periph, announce_buf); 1677 /* 1678 * Create our sysctl variables, now that we know 1679 * we have successfully attached. 1680 */ 1681 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1682 } 1683 softc->state = DA_STATE_NORMAL; 1684 /* 1685 * Since our peripheral may be invalidated by an error 1686 * above or an external event, we must release our CCB 1687 * before releasing the probe lock on the peripheral. 1688 * The peripheral will only go away once the last lock 1689 * is removed, and we need it around for the CCB release 1690 * operation. 1691 */ 1692 xpt_release_ccb(done_ccb); 1693 cam_periph_unlock(periph); 1694 return; 1695 } 1696 case DA_CCB_WAITING: 1697 { 1698 /* Caller will release the CCB */ 1699 wakeup(&done_ccb->ccb_h.cbfcnp); 1700 return; 1701 } 1702 case DA_CCB_DUMP: 1703 /* No-op. We're polling */ 1704 return; 1705 default: 1706 break; 1707 } 1708 xpt_release_ccb(done_ccb); 1709 } 1710 1711 static int 1712 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1713 { 1714 struct da_softc *softc; 1715 struct cam_periph *periph; 1716 int error; 1717 1718 periph = xpt_path_periph(ccb->ccb_h.path); 1719 softc = (struct da_softc *)periph->softc; 1720 1721 /* 1722 * Automatically detect devices that do not support 1723 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1724 */ 1725 error = 0; 1726 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1727 error = cmd6workaround(ccb); 1728 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1729 CAM_SCSI_STATUS_ERROR) 1730 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1731 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1732 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1733 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1734 int sense_key, error_code, asc, ascq; 1735 1736 scsi_extract_sense(&ccb->csio.sense_data, 1737 &error_code, &sense_key, &asc, &ascq); 1738 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1739 error = cmd6workaround(ccb); 1740 } 1741 if (error == ERESTART) 1742 return (ERESTART); 1743 1744 /* 1745 * XXX 1746 * Until we have a better way of doing pack validation, 1747 * don't treat UAs as errors. 1748 */ 1749 sense_flags |= SF_RETRY_UA; 1750 return(cam_periph_error(ccb, cam_flags, sense_flags, 1751 &softc->saved_ccb)); 1752 } 1753 1754 static void 1755 daprevent(struct cam_periph *periph, int action) 1756 { 1757 struct da_softc *softc; 1758 union ccb *ccb; 1759 int error; 1760 1761 softc = (struct da_softc *)periph->softc; 1762 1763 if (((action == PR_ALLOW) 1764 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1765 || ((action == PR_PREVENT) 1766 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1767 return; 1768 } 1769 1770 ccb = cam_periph_getccb(periph, /*priority*/1); 1771 1772 scsi_prevent(&ccb->csio, 1773 /*retries*/1, 1774 /*cbcfp*/dadone, 1775 MSG_SIMPLE_Q_TAG, 1776 action, 1777 SSD_FULL_SIZE, 1778 5000); 1779 1780 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 1781 /*sense_flags*/0, &softc->device_stats); 1782 1783 if (error == 0) { 1784 if (action == PR_ALLOW) 1785 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1786 else 1787 softc->flags |= DA_FLAG_PACK_LOCKED; 1788 } 1789 1790 xpt_release_ccb(ccb); 1791 } 1792 1793 static void 1794 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap) 1795 { 1796 struct ccb_calc_geometry ccg; 1797 struct da_softc *softc; 1798 struct disk_params *dp; 1799 1800 softc = (struct da_softc *)periph->softc; 1801 1802 dp = &softc->params; 1803 dp->secsize = scsi_4btoul(rdcap->length); 1804 dp->sectors = scsi_4btoul(rdcap->addr) + 1; 1805 /* 1806 * Have the controller provide us with a geometry 1807 * for this disk. The only time the geometry 1808 * matters is when we boot and the controller 1809 * is the only one knowledgeable enough to come 1810 * up with something that will make this a bootable 1811 * device. 1812 */ 1813 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1814 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1815 ccg.block_size = dp->secsize; 1816 ccg.volume_size = dp->sectors; 1817 ccg.heads = 0; 1818 ccg.secs_per_track = 0; 1819 ccg.cylinders = 0; 1820 xpt_action((union ccb*)&ccg); 1821 dp->heads = ccg.heads; 1822 dp->secs_per_track = ccg.secs_per_track; 1823 dp->cylinders = ccg.cylinders; 1824 } 1825 1826 static void 1827 dasendorderedtag(void *arg) 1828 { 1829 struct da_softc *softc; 1830 int s; 1831 1832 for (softc = SLIST_FIRST(&softc_list); 1833 softc != NULL; 1834 softc = SLIST_NEXT(softc, links)) { 1835 s = splsoftcam(); 1836 if ((softc->ordered_tag_count == 0) 1837 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1838 softc->flags |= DA_FLAG_NEED_OTAG; 1839 } 1840 if (softc->device_stats.busy_count > 0) 1841 softc->flags &= ~DA_FLAG_WENT_IDLE; 1842 1843 softc->ordered_tag_count = 0; 1844 splx(s); 1845 } 1846 /* Queue us up again */ 1847 timeout(dasendorderedtag, NULL, 1848 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 1849 } 1850 1851 /* 1852 * Step through all DA peripheral drivers, and if the device is still open, 1853 * sync the disk cache to physical media. 1854 */ 1855 static void 1856 dashutdown(void * arg, int howto) 1857 { 1858 struct cam_periph *periph; 1859 struct da_softc *softc; 1860 1861 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL; 1862 periph = TAILQ_NEXT(periph, unit_links)) { 1863 union ccb ccb; 1864 softc = (struct da_softc *)periph->softc; 1865 1866 /* 1867 * We only sync the cache if the drive is still open, and 1868 * if the drive is capable of it.. 1869 */ 1870 if (((softc->flags & DA_FLAG_OPEN) == 0) 1871 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1872 continue; 1873 1874 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1875 1876 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1877 scsi_synchronize_cache(&ccb.csio, 1878 /*retries*/1, 1879 /*cbfcnp*/dadone, 1880 MSG_SIMPLE_Q_TAG, 1881 /*begin_lba*/0, /* whole disk */ 1882 /*lb_count*/0, 1883 SSD_FULL_SIZE, 1884 5 * 60 * 1000); 1885 1886 xpt_polled_action(&ccb); 1887 1888 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1889 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1890 CAM_SCSI_STATUS_ERROR) 1891 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1892 int error_code, sense_key, asc, ascq; 1893 1894 scsi_extract_sense(&ccb.csio.sense_data, 1895 &error_code, &sense_key, 1896 &asc, &ascq); 1897 1898 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1899 scsi_sense_print(&ccb.csio); 1900 } else { 1901 xpt_print_path(periph->path); 1902 printf("Synchronize cache failed, status " 1903 "== 0x%x, scsi status == 0x%x\n", 1904 ccb.ccb_h.status, ccb.csio.scsi_status); 1905 } 1906 } 1907 1908 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1909 cam_release_devq(ccb.ccb_h.path, 1910 /*relsim_flags*/0, 1911 /*reduction*/0, 1912 /*timeout*/0, 1913 /*getcount_only*/0); 1914 1915 } 1916 } 1917 1918 #else /* !_KERNEL */ 1919 1920 /* 1921 * XXX This is only left out of the kernel build to silence warnings. If, 1922 * for some reason this function is used in the kernel, the ifdefs should 1923 * be moved so it is included both in the kernel and userland. 1924 */ 1925 void 1926 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1927 void (*cbfcnp)(struct cam_periph *, union ccb *), 1928 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1929 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1930 u_int32_t timeout) 1931 { 1932 struct scsi_format_unit *scsi_cmd; 1933 1934 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1935 scsi_cmd->opcode = FORMAT_UNIT; 1936 scsi_cmd->byte2 = byte2; 1937 scsi_ulto2b(ileave, scsi_cmd->interleave); 1938 1939 cam_fill_csio(csio, 1940 retries, 1941 cbfcnp, 1942 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1943 tag_action, 1944 data_ptr, 1945 dxfer_len, 1946 sense_len, 1947 sizeof(*scsi_cmd), 1948 timeout); 1949 } 1950 1951 #endif /* _KERNEL */
Cache object: d05e01cffcb177f0f911d86f9547d797
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]