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 1.27 2006/02/17 19:17:42 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/eventhandler.h> 52 #include <sys/malloc.h> 53 #include <sys/cons.h> 54 #include <sys/proc.h> 55 #endif 56 #include <sys/buf2.h> 57 #ifdef _KERNEL 58 #include <sys/thread2.h> 59 #endif 60 61 #include <machine/md_var.h> 62 63 #ifdef _KERNEL 64 #include <vm/vm.h> 65 #include <vm/pmap.h> 66 #endif 67 68 #ifndef _KERNEL 69 #include <stdio.h> 70 #include <string.h> 71 #endif /* _KERNEL */ 72 73 #include "../cam.h" 74 #include "../cam_ccb.h" 75 #include "../cam_extend.h" 76 #include "../cam_periph.h" 77 #include "../cam_xpt_periph.h" 78 79 #include "scsi_message.h" 80 81 #ifndef _KERNEL 82 #include "scsi_da.h" 83 #endif /* !_KERNEL */ 84 85 #ifdef _KERNEL 86 typedef enum { 87 DA_STATE_PROBE, 88 DA_STATE_NORMAL 89 } da_state; 90 91 typedef enum { 92 DA_FLAG_PACK_INVALID = 0x001, 93 DA_FLAG_NEW_PACK = 0x002, 94 DA_FLAG_PACK_LOCKED = 0x004, 95 DA_FLAG_PACK_REMOVABLE = 0x008, 96 DA_FLAG_TAGGED_QUEUING = 0x010, 97 DA_FLAG_NEED_OTAG = 0x020, 98 DA_FLAG_WENT_IDLE = 0x040, 99 DA_FLAG_RETRY_UA = 0x080, 100 DA_FLAG_OPEN = 0x100, 101 DA_FLAG_SCTX_INIT = 0x200 102 } da_flags; 103 104 typedef enum { 105 DA_Q_NONE = 0x00, 106 DA_Q_NO_SYNC_CACHE = 0x01, 107 DA_Q_NO_6_BYTE = 0x02, 108 DA_Q_NO_PREVENT = 0x04 109 } da_quirks; 110 111 typedef enum { 112 DA_CCB_PROBE = 0x01, 113 DA_CCB_BUFFER_IO = 0x02, 114 DA_CCB_WAITING = 0x03, 115 DA_CCB_DUMP = 0x04, 116 DA_CCB_TYPE_MASK = 0x0F, 117 DA_CCB_RETRY_UA = 0x10 118 } da_ccb_state; 119 120 /* Offsets into our private area for storing information */ 121 #define ccb_state ppriv_field0 122 #define ccb_bio ppriv_ptr1 123 124 struct disk_params { 125 u_int8_t heads; 126 u_int16_t cylinders; 127 u_int8_t secs_per_track; 128 u_int32_t secsize; /* Number of bytes/sector */ 129 u_int32_t sectors; /* total number sectors */ 130 }; 131 132 struct da_softc { 133 struct bio_queue_head bio_queue; 134 struct devstat device_stats; 135 SLIST_ENTRY(da_softc) links; 136 LIST_HEAD(, ccb_hdr) pending_ccbs; 137 da_state state; 138 da_flags flags; 139 da_quirks quirks; 140 int minimum_cmd_size; 141 int ordered_tag_count; 142 struct disk_params params; 143 struct disk disk; 144 union ccb saved_ccb; 145 struct task sysctl_task; 146 struct sysctl_ctx_list sysctl_ctx; 147 struct sysctl_oid *sysctl_tree; 148 }; 149 150 struct da_quirk_entry { 151 struct scsi_inquiry_pattern inq_pat; 152 da_quirks quirks; 153 }; 154 155 static const char quantum[] = "QUANTUM"; 156 static const char microp[] = "MICROP"; 157 158 static struct da_quirk_entry da_quirk_table[] = 159 { 160 /* SPI, FC devices */ 161 { 162 /* 163 * Fujitsu M2513A MO drives. 164 * Tested devices: M2513A2 firmware versions 1200 & 1300. 165 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 166 * Reported by: W.Scholten <whs@xs4all.nl> 167 */ 168 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 169 /*quirks*/ DA_Q_NO_SYNC_CACHE 170 }, 171 { 172 /* See above. */ 173 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 174 /*quirks*/ DA_Q_NO_SYNC_CACHE 175 }, 176 { 177 /* 178 * This particular Fujitsu drive doesn't like the 179 * synchronize cache command. 180 * Reported by: Tom Jackson <toj@gorilla.net> 181 */ 182 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 183 /*quirks*/ DA_Q_NO_SYNC_CACHE 184 185 }, 186 { 187 /* 188 * This drive doesn't like the synchronize cache command 189 * either. Reported by: Matthew Jacob <mjacob@feral.com> 190 * in NetBSD PR kern/6027, August 24, 1998. 191 */ 192 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 193 /*quirks*/ DA_Q_NO_SYNC_CACHE 194 }, 195 { 196 /* 197 * This drive doesn't like the synchronize cache command 198 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 199 * (PR 8882). 200 */ 201 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 202 /*quirks*/ DA_Q_NO_SYNC_CACHE 203 }, 204 { 205 /* 206 * Doesn't like the synchronize cache command. 207 * Reported by: Blaz Zupan <blaz@gold.amis.net> 208 */ 209 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 210 /*quirks*/ DA_Q_NO_SYNC_CACHE 211 }, 212 { 213 /* 214 * Doesn't like the synchronize cache command. 215 */ 216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 217 /*quirks*/ DA_Q_NO_SYNC_CACHE 218 }, 219 { 220 /* 221 * Doesn't like the synchronize cache command. 222 */ 223 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 224 /*quirks*/ DA_Q_NO_SYNC_CACHE 225 }, 226 { 227 /* 228 * Doesn't work correctly with 6 byte reads/writes. 229 * Returns illegal request, and points to byte 9 of the 230 * 6-byte CDB. 231 * Reported by: Adam McDougall <bsdx@spawnet.com> 232 */ 233 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 234 /*quirks*/ DA_Q_NO_6_BYTE 235 }, 236 { 237 /* See above. */ 238 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 239 /*quirks*/ DA_Q_NO_6_BYTE 240 }, 241 /* XXX USB floppy quirks temporarily enabled for 4.9R */ 242 /* USB floppy devices supported by umass(4) */ 243 { 244 /* 245 * This USB floppy drive uses the UFI command set. This 246 * command set is a derivative of the ATAPI command set and 247 * does not support READ_6 commands only READ_10. It also does 248 * not support sync cache (0x35). 249 */ 250 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 251 /*quirks*/ DA_Q_NO_SYNC_CACHE 252 }, 253 { 254 /* Another USB floppy */ 255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 256 /*quirks*/ DA_Q_NO_SYNC_CACHE 257 }, 258 { 259 /* 260 * The vendor, product and version strings coming from the 261 * controller are null terminated instead of being padded with 262 * spaces. The trailing wildcard character '*' is required. 263 */ 264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 265 /*quirks*/ DA_Q_NO_SYNC_CACHE 266 }, 267 { 268 /* 269 * SmartDisk (Mitsumi) USB floppy drive 270 * PR: kern/50226 271 */ 272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 273 /*quirks*/ DA_Q_NO_SYNC_CACHE 274 }, 275 { 276 /* 277 * The CISS RAID controllers do not support SYNC_CACHE 278 */ 279 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 280 /*quirks*/ DA_Q_NO_SYNC_CACHE 281 }, 282 #ifdef DA_OLD_QUIRKS 283 /* USB mass storage devices supported by umass(4) */ 284 { 285 /* 286 * Sony Memory Stick adapter MSAC-US1 and 287 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 288 * Make all sony MS* products use this quirk. 289 */ 290 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 291 /*quirks*/ DA_Q_NO_SYNC_CACHE 292 }, 293 { 294 /* 295 * Sony Memory Stick adapter for the CLIE series 296 * of PalmOS PDA's 297 */ 298 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 299 /*quirks*/ DA_Q_NO_SYNC_CACHE 300 }, 301 { 302 /* 303 * Intelligent Stick USB disk-on-key 304 * PR: kern/53005 305 */ 306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card", 307 "IntelligentStick*", "*"}, 308 /*quirks*/ DA_Q_NO_SYNC_CACHE 309 }, 310 { 311 /* 312 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 313 */ 314 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 315 /*quirks*/ DA_Q_NO_SYNC_CACHE 316 }, 317 { 318 /* 319 * Microtech USB CameraMate 320 */ 321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 322 "Compact Flash*", "*"}, 323 /*quirks*/ DA_Q_NO_SYNC_CACHE 324 }, 325 { 326 /* 327 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 328 */ 329 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 330 /*quirks*/ DA_Q_NO_SYNC_CACHE 331 }, 332 { 333 /* 334 * Olympus digital cameras (E-100RS, E-10). 335 */ 336 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 337 /*quirks*/ DA_Q_NO_SYNC_CACHE 338 }, 339 { 340 /* 341 * KingByte Pen Drives 342 */ 343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 344 /*quirks*/ DA_Q_NO_SYNC_CACHE 345 }, 346 { 347 /* 348 * iRiver iFP MP3 player (with UMS Firmware) 349 * PR: kern/54881, i386/63941, kern/66124 350 */ 351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 352 /*quirks*/ DA_Q_NO_SYNC_CACHE 353 }, 354 { 355 /* 356 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 357 * PR: kern/70158 358 */ 359 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "NexIA+*", "*"}, 360 /*quirks*/ DA_Q_NO_SYNC_CACHE 361 }, 362 { 363 /* 364 * FujiFilm Camera 365 */ 366 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT", 367 "USB-DRIVEUNIT", "*"}, 368 /*quirks*/ DA_Q_NO_SYNC_CACHE 369 }, 370 { 371 /* 372 * Minolta Dimage E203 373 */ 374 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 375 /*quirks*/ DA_Q_NO_SYNC_CACHE 376 }, 377 { 378 /* 379 * Apacer HandyDrive 380 * PR: kern/43627 381 */ 382 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"}, 383 /*quirks*/ DA_Q_NO_SYNC_CACHE 384 }, 385 { 386 /* 387 * Daisy Technology PhotoClip on Zoran chip 388 * PR: kern/43580 389 */ 390 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 391 /*quirks*/ DA_Q_NO_SYNC_CACHE 392 }, 393 { 394 /* 395 * Sony USB Key-Storage 396 * PR: kern/46386 397 */ 398 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 399 /*quirks*/ DA_Q_NO_SYNC_CACHE 400 }, 401 #endif /* DA_OLD_QUIRKS */ 402 { 403 /* 404 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 405 * PR: kern/51675 406 */ 407 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 408 /*quirks*/ DA_Q_NO_SYNC_CACHE 409 }, 410 { 411 /* 412 * Jungsoft NEXDISK USB flash key 413 * PR: kern/54737 414 */ 415 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 416 /*quirks*/ DA_Q_NO_SYNC_CACHE 417 }, 418 { 419 /* 420 * Creative Nomad MUVO mp3 player (USB) 421 * PR: kern/53094 422 */ 423 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 424 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 425 }, 426 }; 427 428 static d_open_t daopen; 429 static d_close_t daclose; 430 static d_strategy_t dastrategy; 431 static d_ioctl_t daioctl; 432 static d_dump_t dadump; 433 static periph_init_t dainit; 434 static void daasync(void *callback_arg, u_int32_t code, 435 struct cam_path *path, void *arg); 436 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 437 static periph_ctor_t daregister; 438 static periph_dtor_t dacleanup; 439 static periph_start_t dastart; 440 static periph_oninv_t daoninvalidate; 441 static void dadone(struct cam_periph *periph, 442 union ccb *done_ccb); 443 static int daerror(union ccb *ccb, u_int32_t cam_flags, 444 u_int32_t sense_flags); 445 static void daprevent(struct cam_periph *periph, int action); 446 static void dasetgeom(struct cam_periph *periph, 447 struct scsi_read_capacity_data * rdcap); 448 static timeout_t dasendorderedtag; 449 static void dashutdown(void *arg, int howto); 450 451 #ifndef DA_DEFAULT_TIMEOUT 452 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 453 #endif 454 455 #ifndef DA_DEFAULT_RETRY 456 #define DA_DEFAULT_RETRY 4 457 #endif 458 459 static int da_retry_count = DA_DEFAULT_RETRY; 460 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 461 static struct callout dasendorderedtag_ch; 462 463 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 464 "CAM Direct Access Disk driver"); 465 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 466 &da_retry_count, 0, "Normal I/O retry count"); 467 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 468 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 469 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 470 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 471 472 /* 473 * DA_ORDEREDTAG_INTERVAL determines how often, relative 474 * to the default timeout, we check to see whether an ordered 475 * tagged transaction is appropriate to prevent simple tag 476 * starvation. Since we'd like to ensure that there is at least 477 * 1/2 of the timeout length left for a starved transaction to 478 * complete after we've sent an ordered tag, we must poll at least 479 * four times in every timeout period. This takes care of the worst 480 * case where a starved transaction starts during an interval that 481 * meets the requirement "don't send an ordered tag" test so it takes 482 * us two intervals to determine that a tag must be sent. 483 */ 484 #ifndef DA_ORDEREDTAG_INTERVAL 485 #define DA_ORDEREDTAG_INTERVAL 4 486 #endif 487 488 static struct periph_driver dadriver = 489 { 490 dainit, "da", 491 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 492 }; 493 494 DATA_SET(periphdriver_set, dadriver); 495 496 /* For 2.2-stable support */ 497 #ifndef D_DISK 498 #define D_DISK 0 499 #endif 500 501 static struct cdevsw da_cdevsw = { 502 /* name */ "da", 503 /* maj */ DA_CDEV_MAJOR, 504 /* flags */ D_DISK, 505 /* port */ NULL, 506 /* clone */ NULL, 507 508 /* open */ daopen, 509 /* close */ daclose, 510 /* read */ physread, 511 /* write */ physwrite, 512 /* ioctl */ daioctl, 513 /* poll */ nopoll, 514 /* mmap */ nommap, 515 /* strategy */ dastrategy, 516 /* dump */ dadump, 517 /* psize */ nopsize 518 }; 519 520 static SLIST_HEAD(,da_softc) softc_list; 521 static struct extend_array *daperiphs; 522 523 static int 524 daopen(dev_t dev, int flags, int fmt, struct thread *td) 525 { 526 struct cam_periph *periph; 527 struct da_softc *softc; 528 struct disklabel *label; 529 int unit; 530 int part; 531 int error; 532 533 unit = dkunit(dev); 534 part = dkpart(dev); 535 periph = cam_extend_get(daperiphs, unit); 536 if (periph == NULL) 537 return (ENXIO); 538 539 softc = (struct da_softc *)periph->softc; 540 541 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 542 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 543 unit, part)); 544 545 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 546 return (error); /* error code from tsleep */ 547 } 548 549 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 550 return(ENXIO); 551 softc->flags |= DA_FLAG_OPEN; 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 /* Do a read capacity */ 562 { 563 struct scsi_read_capacity_data *rcap; 564 union ccb *ccb; 565 566 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 567 568 ccb = cam_periph_getccb(periph, /*priority*/1); 569 scsi_read_capacity(&ccb->csio, 570 /*retries*/1, 571 /*cbfncp*/dadone, 572 MSG_SIMPLE_Q_TAG, 573 rcap, 574 SSD_FULL_SIZE, 575 /*timeout*/60000); 576 ccb->ccb_h.ccb_bio = NULL; 577 578 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 579 /*sense_flags*/SF_RETRY_UA | 580 SF_RETRY_SELTO, 581 &softc->device_stats); 582 583 xpt_release_ccb(ccb); 584 585 if (error == 0) { 586 dasetgeom(periph, rcap); 587 } 588 589 free(rcap, M_TEMP); 590 } 591 592 if (error == 0) { 593 struct ccb_getdev cgd; 594 595 /* Build label for whole disk. */ 596 label = &softc->disk.d_label; 597 bzero(label, sizeof(*label)); 598 label->d_type = DTYPE_SCSI; 599 600 /* 601 * Grab the inquiry data to get the vendor and product names. 602 * Put them in the typename and packname for the label. 603 */ 604 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 605 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 606 xpt_action((union ccb *)&cgd); 607 608 strncpy(label->d_typename, cgd.inq_data.vendor, 609 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 610 strncpy(label->d_packname, cgd.inq_data.product, 611 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 612 613 label->d_secsize = softc->params.secsize; 614 label->d_nsectors = softc->params.secs_per_track; 615 label->d_ntracks = softc->params.heads; 616 label->d_ncylinders = softc->params.cylinders; 617 label->d_secpercyl = softc->params.heads 618 * softc->params.secs_per_track; 619 label->d_secperunit = softc->params.sectors; 620 621 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 622 (softc->quirks & DA_Q_NO_PREVENT) == 0) 623 daprevent(periph, PR_PREVENT); 624 625 /* 626 * Check to see whether or not the blocksize is set yet. 627 * If it isn't, set it and then clear the blocksize 628 * unavailable flag for the device statistics. 629 */ 630 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 631 softc->device_stats.block_size = softc->params.secsize; 632 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 633 } 634 } 635 636 if (error != 0) { 637 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 638 (softc->quirks & DA_Q_NO_PREVENT) == 0) 639 daprevent(periph, PR_ALLOW); 640 softc->flags &= ~DA_FLAG_OPEN; 641 cam_periph_release(periph); 642 } 643 cam_periph_unlock(periph); 644 return (error); 645 } 646 647 static int 648 daclose(dev_t dev, int flag, int fmt, struct thread *td) 649 { 650 struct cam_periph *periph; 651 struct da_softc *softc; 652 int unit; 653 int error; 654 655 unit = dkunit(dev); 656 periph = cam_extend_get(daperiphs, unit); 657 if (periph == NULL) 658 return (ENXIO); 659 660 softc = (struct da_softc *)periph->softc; 661 662 if ((error = cam_periph_lock(periph, 0)) != 0) { 663 return (error); /* error code from tsleep */ 664 } 665 666 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 667 union ccb *ccb; 668 669 ccb = cam_periph_getccb(periph, /*priority*/1); 670 671 scsi_synchronize_cache(&ccb->csio, 672 /*retries*/1, 673 /*cbfcnp*/dadone, 674 MSG_SIMPLE_Q_TAG, 675 /*begin_lba*/0,/* Cover the whole disk */ 676 /*lb_count*/0, 677 SSD_FULL_SIZE, 678 5 * 60 * 1000); 679 680 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 681 /*sense_flags*/SF_RETRY_UA, 682 &softc->device_stats); 683 684 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 685 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 686 CAM_SCSI_STATUS_ERROR) { 687 int asc, ascq; 688 int sense_key, error_code; 689 690 scsi_extract_sense(&ccb->csio.sense_data, 691 &error_code, 692 &sense_key, 693 &asc, &ascq); 694 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 695 scsi_sense_print(&ccb->csio); 696 } else { 697 xpt_print_path(periph->path); 698 printf("Synchronize cache failed, status " 699 "== 0x%x, scsi status == 0x%x\n", 700 ccb->csio.ccb_h.status, 701 ccb->csio.scsi_status); 702 } 703 } 704 705 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 706 cam_release_devq(ccb->ccb_h.path, 707 /*relsim_flags*/0, 708 /*reduction*/0, 709 /*timeout*/0, 710 /*getcount_only*/0); 711 712 xpt_release_ccb(ccb); 713 714 } 715 716 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 717 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 718 daprevent(periph, PR_ALLOW); 719 /* 720 * If we've got removeable media, mark the blocksize as 721 * unavailable, since it could change when new media is 722 * inserted. 723 */ 724 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 725 } 726 727 softc->flags &= ~DA_FLAG_OPEN; 728 cam_periph_unlock(periph); 729 cam_periph_release(periph); 730 return (0); 731 } 732 733 /* 734 * Actually translate the requested transfer into one the physical driver 735 * can understand. The transfer is described by a buf and will include 736 * only one physical transfer. 737 */ 738 static void 739 dastrategy(dev_t dev, struct bio *bio) 740 { 741 struct buf *bp = bio->bio_buf; 742 struct cam_periph *periph; 743 struct da_softc *softc; 744 u_int unit; 745 u_int part; 746 747 unit = dkunit(dev); 748 part = dkpart(dev); 749 periph = cam_extend_get(daperiphs, unit); 750 if (periph == NULL) { 751 bp->b_error = ENXIO; 752 goto bad; 753 } 754 softc = (struct da_softc *)periph->softc; 755 #if 0 756 /* 757 * check it's not too big a transfer for our adapter 758 */ 759 scsi_minphys(bp, &sd_switch); 760 #endif 761 762 /* 763 * Mask interrupts so that the pack cannot be invalidated until 764 * after we are in the queue. Otherwise, we might not properly 765 * clean up one of the buffers. 766 */ 767 crit_enter(); 768 769 /* 770 * If the device has been made invalid, error out 771 */ 772 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 773 crit_exit(); 774 bp->b_error = ENXIO; 775 goto bad; 776 } 777 778 /* 779 * Place it in the queue of disk activities for this disk 780 */ 781 bioqdisksort(&softc->bio_queue, bio); 782 783 crit_exit(); 784 785 /* 786 * Schedule ourselves for performing the work. 787 */ 788 xpt_schedule(periph, /* XXX priority */1); 789 790 return; 791 bad: 792 bp->b_flags |= B_ERROR; 793 794 /* 795 * Correctly set the buf to indicate a completed xfer 796 */ 797 bp->b_resid = bp->b_bcount; 798 biodone(bio); 799 } 800 801 /* For 2.2-stable support */ 802 #ifndef ENOIOCTL 803 #define ENOIOCTL -1 804 #endif 805 806 static int 807 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 808 { 809 struct cam_periph *periph; 810 struct da_softc *softc; 811 int unit; 812 int error; 813 814 unit = dkunit(dev); 815 periph = cam_extend_get(daperiphs, unit); 816 if (periph == NULL) 817 return (ENXIO); 818 819 softc = (struct da_softc *)periph->softc; 820 821 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 822 823 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 824 return (error); /* error code from tsleep */ 825 } 826 827 error = cam_periph_ioctl(periph, cmd, addr, daerror); 828 829 cam_periph_unlock(periph); 830 831 return (error); 832 } 833 834 static int 835 dadump(dev_t dev, u_int num, u_int blknum, u_int secsize) 836 { 837 struct cam_periph *periph; 838 struct da_softc *softc; 839 u_int unit; 840 long blkcnt; 841 vm_paddr_t addr; 842 struct ccb_scsiio csio; 843 int dumppages = MAXDUMPPGS; 844 int i; 845 846 /* toss any characters present prior to dump */ 847 while (cncheckc() != -1) 848 ; 849 850 unit = dkunit(dev); 851 periph = cam_extend_get(daperiphs, unit); 852 if (periph == NULL) { 853 return (ENXIO); 854 } 855 softc = (struct da_softc *)periph->softc; 856 857 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 858 return (ENXIO); 859 860 addr = 0; /* starting address */ 861 blkcnt = howmany(PAGE_SIZE, secsize); 862 863 while (num > 0) { 864 caddr_t va = NULL; 865 866 if ((num / blkcnt) < dumppages) 867 dumppages = num / blkcnt; 868 869 for (i = 0; i < dumppages; ++i) { 870 vm_paddr_t a = addr + (i * PAGE_SIZE); 871 if (is_physical_memory(a)) 872 va = pmap_kenter_temporary(trunc_page(a), i); 873 else 874 va = pmap_kenter_temporary(trunc_page(0), i); 875 } 876 877 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 878 csio.ccb_h.ccb_state = DA_CCB_DUMP; 879 scsi_read_write(&csio, 880 /*retries*/1, 881 dadone, 882 MSG_ORDERED_Q_TAG, 883 /*read*/FALSE, 884 /*byte2*/0, 885 /*minimum_cmd_size*/ softc->minimum_cmd_size, 886 blknum, 887 blkcnt * dumppages, 888 /*data_ptr*/(u_int8_t *) va, 889 /*dxfer_len*/blkcnt * secsize * dumppages, 890 /*sense_len*/SSD_FULL_SIZE, 891 DA_DEFAULT_TIMEOUT * 1000); 892 xpt_polled_action((union ccb *)&csio); 893 894 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 895 printf("Aborting dump due to I/O error.\n"); 896 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 897 CAM_SCSI_STATUS_ERROR) 898 scsi_sense_print(&csio); 899 else 900 printf("status == 0x%x, scsi status == 0x%x\n", 901 csio.ccb_h.status, csio.scsi_status); 902 return(EIO); 903 } 904 905 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0) 906 return (EINTR); 907 908 /* update block count */ 909 num -= blkcnt * dumppages; 910 blknum += blkcnt * dumppages; 911 addr += PAGE_SIZE * dumppages; 912 } 913 914 /* 915 * Sync the disk cache contents to the physical media. 916 */ 917 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 918 919 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 920 csio.ccb_h.ccb_state = DA_CCB_DUMP; 921 scsi_synchronize_cache(&csio, 922 /*retries*/1, 923 /*cbfcnp*/dadone, 924 MSG_SIMPLE_Q_TAG, 925 /*begin_lba*/0,/* Cover the whole disk */ 926 /*lb_count*/0, 927 SSD_FULL_SIZE, 928 5 * 60 * 1000); 929 xpt_polled_action((union ccb *)&csio); 930 931 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 932 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 933 CAM_SCSI_STATUS_ERROR) { 934 int asc, ascq; 935 int sense_key, error_code; 936 937 scsi_extract_sense(&csio.sense_data, 938 &error_code, 939 &sense_key, 940 &asc, &ascq); 941 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 942 scsi_sense_print(&csio); 943 } else { 944 xpt_print_path(periph->path); 945 printf("Synchronize cache failed, status " 946 "== 0x%x, scsi status == 0x%x\n", 947 csio.ccb_h.status, csio.scsi_status); 948 } 949 } 950 } 951 return (0); 952 } 953 954 static void 955 dainit(void) 956 { 957 cam_status status; 958 struct cam_path *path; 959 960 /* 961 * Create our extend array for storing the devices we attach to. 962 */ 963 daperiphs = cam_extend_new(); 964 SLIST_INIT(&softc_list); 965 if (daperiphs == NULL) { 966 printf("da: Failed to alloc extend array!\n"); 967 return; 968 } 969 970 callout_init(&dasendorderedtag_ch); 971 972 /* 973 * Install a global async callback. This callback will 974 * receive async callbacks like "new device found". 975 */ 976 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 977 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 978 979 if (status == CAM_REQ_CMP) { 980 struct ccb_setasync csa; 981 982 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 983 csa.ccb_h.func_code = XPT_SASYNC_CB; 984 csa.event_enable = AC_FOUND_DEVICE; 985 csa.callback = daasync; 986 csa.callback_arg = NULL; 987 xpt_action((union ccb *)&csa); 988 status = csa.ccb_h.status; 989 xpt_free_path(path); 990 } 991 992 if (status != CAM_REQ_CMP) { 993 printf("da: Failed to attach master async callback " 994 "due to status 0x%x!\n", status); 995 } else { 996 997 /* 998 * Schedule a periodic event to occasionally send an 999 * ordered tag to a device. 1000 */ 1001 callout_reset(&dasendorderedtag_ch, 1002 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1003 dasendorderedtag, NULL); 1004 1005 /* Register our shutdown event handler */ 1006 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1007 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1008 printf("dainit: shutdown event registration failed!\n"); 1009 } 1010 } 1011 1012 static void 1013 daoninvalidate(struct cam_periph *periph) 1014 { 1015 struct da_softc *softc; 1016 struct bio *q_bio; 1017 struct buf *q_bp; 1018 struct ccb_setasync csa; 1019 1020 softc = (struct da_softc *)periph->softc; 1021 1022 /* 1023 * De-register any async callbacks. 1024 */ 1025 xpt_setup_ccb(&csa.ccb_h, periph->path, 1026 /* priority */ 5); 1027 csa.ccb_h.func_code = XPT_SASYNC_CB; 1028 csa.event_enable = 0; 1029 csa.callback = daasync; 1030 csa.callback_arg = periph; 1031 xpt_action((union ccb *)&csa); 1032 1033 softc->flags |= DA_FLAG_PACK_INVALID; 1034 1035 /* 1036 * Use a critical section to keep the buffer queue from being 1037 * modified while we traverse it. 1038 */ 1039 crit_enter(); 1040 1041 /* 1042 * Return all queued I/O with ENXIO. 1043 * XXX Handle any transactions queued to the card 1044 * with XPT_ABORT_CCB. 1045 */ 1046 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){ 1047 bioq_remove(&softc->bio_queue, q_bio); 1048 q_bp = q_bio->bio_buf; 1049 q_bp->b_resid = q_bp->b_bcount; 1050 q_bp->b_error = ENXIO; 1051 q_bp->b_flags |= B_ERROR; 1052 biodone(q_bio); 1053 } 1054 crit_exit(); 1055 1056 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1057 1058 xpt_print_path(periph->path); 1059 printf("lost device\n"); 1060 } 1061 1062 static void 1063 dacleanup(struct cam_periph *periph) 1064 { 1065 struct da_softc *softc; 1066 1067 softc = (struct da_softc *)periph->softc; 1068 1069 devstat_remove_entry(&softc->device_stats); 1070 cam_extend_release(daperiphs, periph->unit_number); 1071 xpt_print_path(periph->path); 1072 printf("removing device entry\n"); 1073 /* 1074 * If we can't free the sysctl tree, oh well... 1075 */ 1076 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1077 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1078 xpt_print_path(periph->path); 1079 printf("can't remove sysctl context\n"); 1080 } 1081 if (softc->disk.d_rawdev) { 1082 disk_destroy(&softc->disk); 1083 } 1084 free(softc, M_DEVBUF); 1085 } 1086 1087 static void 1088 daasync(void *callback_arg, u_int32_t code, 1089 struct cam_path *path, void *arg) 1090 { 1091 struct cam_periph *periph; 1092 1093 periph = (struct cam_periph *)callback_arg; 1094 switch (code) { 1095 case AC_FOUND_DEVICE: 1096 { 1097 struct ccb_getdev *cgd; 1098 cam_status status; 1099 1100 cgd = (struct ccb_getdev *)arg; 1101 1102 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1103 && SID_TYPE(&cgd->inq_data) != T_RBC 1104 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1105 break; 1106 1107 /* 1108 * Allocate a peripheral instance for 1109 * this device and start the probe 1110 * process. 1111 */ 1112 status = cam_periph_alloc(daregister, daoninvalidate, 1113 dacleanup, dastart, 1114 "da", CAM_PERIPH_BIO, 1115 cgd->ccb_h.path, daasync, 1116 AC_FOUND_DEVICE, cgd); 1117 1118 if (status != CAM_REQ_CMP 1119 && status != CAM_REQ_INPROG) 1120 printf("daasync: Unable to attach to new device " 1121 "due to status 0x%x\n", status); 1122 break; 1123 } 1124 case AC_SENT_BDR: 1125 case AC_BUS_RESET: 1126 { 1127 struct da_softc *softc; 1128 struct ccb_hdr *ccbh; 1129 1130 softc = (struct da_softc *)periph->softc; 1131 crit_enter(); 1132 /* 1133 * Don't fail on the expected unit attention 1134 * that will occur. 1135 */ 1136 softc->flags |= DA_FLAG_RETRY_UA; 1137 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 1138 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 1139 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1140 crit_exit(); 1141 /* FALLTHROUGH*/ 1142 } 1143 default: 1144 cam_periph_async(periph, code, path, arg); 1145 break; 1146 } 1147 } 1148 1149 static void 1150 dasysctlinit(void *context, int pending) 1151 { 1152 struct cam_periph *periph; 1153 struct da_softc *softc; 1154 char tmpstr[80], tmpstr2[80]; 1155 1156 periph = (struct cam_periph *)context; 1157 softc = (struct da_softc *)periph->softc; 1158 1159 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1160 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1161 1162 sysctl_ctx_init(&softc->sysctl_ctx); 1163 softc->flags |= DA_FLAG_SCTX_INIT; 1164 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1165 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1166 CTLFLAG_RD, 0, tmpstr); 1167 if (softc->sysctl_tree == NULL) { 1168 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1169 return; 1170 } 1171 1172 /* 1173 * Now register the sysctl handler, so the user can the value on 1174 * the fly. 1175 */ 1176 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1177 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1178 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1179 "Minimum CDB size"); 1180 } 1181 1182 static int 1183 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1184 { 1185 int error, value; 1186 1187 value = *(int *)arg1; 1188 1189 error = sysctl_handle_int(oidp, &value, 0, req); 1190 1191 if ((error != 0) 1192 || (req->newptr == NULL)) 1193 return (error); 1194 1195 /* 1196 * Acceptable values here are 6, 10 or 12. It's possible we may 1197 * support a 16 byte minimum command size in the future, since 1198 * there are now READ(16) and WRITE(16) commands defined in the 1199 * SBC-2 spec. 1200 */ 1201 if (value < 6) 1202 value = 6; 1203 else if ((value > 6) 1204 && (value <= 10)) 1205 value = 10; 1206 else if (value > 10) 1207 value = 12; 1208 1209 *(int *)arg1 = value; 1210 1211 return (0); 1212 } 1213 1214 static cam_status 1215 daregister(struct cam_periph *periph, void *arg) 1216 { 1217 struct da_softc *softc; 1218 struct ccb_setasync csa; 1219 struct ccb_pathinq cpi; 1220 struct ccb_getdev *cgd; 1221 char tmpstr[80]; 1222 caddr_t match; 1223 1224 cgd = (struct ccb_getdev *)arg; 1225 if (periph == NULL) { 1226 printf("daregister: periph was NULL!!\n"); 1227 return(CAM_REQ_CMP_ERR); 1228 } 1229 1230 if (cgd == NULL) { 1231 printf("daregister: no getdev CCB, can't register device\n"); 1232 return(CAM_REQ_CMP_ERR); 1233 } 1234 1235 softc = malloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1236 LIST_INIT(&softc->pending_ccbs); 1237 softc->state = DA_STATE_PROBE; 1238 bioq_init(&softc->bio_queue); 1239 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1240 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1241 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1242 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1243 1244 periph->softc = softc; 1245 1246 cam_extend_set(daperiphs, periph->unit_number, periph); 1247 1248 /* 1249 * See if this device has any quirks. 1250 */ 1251 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1252 (caddr_t)da_quirk_table, 1253 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1254 sizeof(*da_quirk_table), scsi_inquiry_match); 1255 1256 if (match != NULL) 1257 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1258 else 1259 softc->quirks = DA_Q_NONE; 1260 1261 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1262 1263 /* Check if the SIM does not want 6 byte commands */ 1264 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1265 cpi.ccb_h.func_code = XPT_PATH_INQ; 1266 xpt_action((union ccb *)&cpi); 1267 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1268 softc->quirks |= DA_Q_NO_6_BYTE; 1269 1270 /* 1271 * RBC devices don't have to support READ(6), only READ(10). 1272 */ 1273 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1274 softc->minimum_cmd_size = 10; 1275 else 1276 softc->minimum_cmd_size = 6; 1277 1278 /* 1279 * Load the user's default, if any. 1280 */ 1281 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1282 periph->unit_number); 1283 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1284 1285 /* 1286 * 6, 10 and 12 are the currently permissible values. 1287 */ 1288 if (softc->minimum_cmd_size < 6) 1289 softc->minimum_cmd_size = 6; 1290 else if ((softc->minimum_cmd_size > 6) 1291 && (softc->minimum_cmd_size <= 10)) 1292 softc->minimum_cmd_size = 10; 1293 else if (softc->minimum_cmd_size > 12) 1294 softc->minimum_cmd_size = 12; 1295 1296 /* 1297 * Block our timeout handler while we 1298 * add this softc to the dev list. 1299 */ 1300 crit_enter(); 1301 SLIST_INSERT_HEAD(&softc_list, softc, links); 1302 crit_exit(); 1303 1304 /* 1305 * The DA driver supports a blocksize, but 1306 * we don't know the blocksize until we do 1307 * a read capacity. So, set a flag to 1308 * indicate that the blocksize is 1309 * unavailable right now. We'll clear the 1310 * flag as soon as we've done a read capacity. 1311 */ 1312 devstat_add_entry(&softc->device_stats, "da", 1313 periph->unit_number, 0, 1314 DEVSTAT_BS_UNAVAILABLE, 1315 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1316 DEVSTAT_PRIORITY_DISK); 1317 1318 /* 1319 * Register this media as a disk 1320 */ 1321 disk_create(periph->unit_number, &softc->disk, 0, &da_cdevsw); 1322 1323 /* 1324 * Add async callbacks for bus reset and 1325 * bus device reset calls. I don't bother 1326 * checking if this fails as, in most cases, 1327 * the system will function just fine without 1328 * them and the only alternative would be to 1329 * not attach the device on failure. 1330 */ 1331 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1332 csa.ccb_h.func_code = XPT_SASYNC_CB; 1333 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1334 csa.callback = daasync; 1335 csa.callback_arg = periph; 1336 xpt_action((union ccb *)&csa); 1337 /* 1338 * Lock this peripheral until we are setup. 1339 * This first call can't block 1340 */ 1341 cam_periph_lock(periph, 0); 1342 xpt_schedule(periph, /*priority*/5); 1343 1344 return(CAM_REQ_CMP); 1345 } 1346 1347 static void 1348 dastart(struct cam_periph *periph, union ccb *start_ccb) 1349 { 1350 struct da_softc *softc; 1351 1352 softc = (struct da_softc *)periph->softc; 1353 1354 1355 switch (softc->state) { 1356 case DA_STATE_NORMAL: 1357 { 1358 /* Pull a buffer from the queue and get going on it */ 1359 struct bio *bio; 1360 struct buf *bp; 1361 1362 /* 1363 * See if there is a buf with work for us to do.. 1364 */ 1365 crit_enter(); 1366 bio = bioq_first(&softc->bio_queue); 1367 if (periph->immediate_priority <= periph->pinfo.priority) { 1368 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1369 ("queuing for immediate ccb\n")); 1370 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1371 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1372 periph_links.sle); 1373 periph->immediate_priority = CAM_PRIORITY_NONE; 1374 crit_exit(); 1375 wakeup(&periph->ccb_list); 1376 } else if (bio == NULL) { 1377 crit_exit(); 1378 xpt_release_ccb(start_ccb); 1379 } else { 1380 u_int8_t tag_code; 1381 1382 bioq_remove(&softc->bio_queue, bio); 1383 bp = bio->bio_buf; 1384 1385 devstat_start_transaction(&softc->device_stats); 1386 1387 if ((bp->b_flags & B_ORDERED) != 0 1388 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1389 softc->flags &= ~DA_FLAG_NEED_OTAG; 1390 softc->ordered_tag_count++; 1391 tag_code = MSG_ORDERED_Q_TAG; 1392 } else { 1393 tag_code = MSG_SIMPLE_Q_TAG; 1394 } 1395 scsi_read_write(&start_ccb->csio, 1396 /*retries*/da_retry_count, 1397 dadone, 1398 tag_code, 1399 bp->b_flags & B_READ, 1400 /*byte2*/0, 1401 softc->minimum_cmd_size, 1402 bio->bio_blkno, 1403 bp->b_bcount / softc->params.secsize, 1404 bp->b_data, 1405 bp->b_bcount, 1406 /*sense_len*/SSD_FULL_SIZE, 1407 da_default_timeout * 1000); 1408 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1409 1410 /* 1411 * Block out any asyncronous callbacks 1412 * while we touch the pending ccb list. 1413 */ 1414 LIST_INSERT_HEAD(&softc->pending_ccbs, 1415 &start_ccb->ccb_h, periph_links.le); 1416 1417 /* We expect a unit attention from this device */ 1418 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1419 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1420 softc->flags &= ~DA_FLAG_RETRY_UA; 1421 } 1422 1423 start_ccb->ccb_h.ccb_bio = bio; 1424 bio = bioq_first(&softc->bio_queue); 1425 crit_exit(); 1426 1427 xpt_action(start_ccb); 1428 } 1429 1430 if (bio != NULL) { 1431 /* Have more work to do, so ensure we stay scheduled */ 1432 xpt_schedule(periph, /* XXX priority */1); 1433 } 1434 break; 1435 } 1436 case DA_STATE_PROBE: 1437 { 1438 struct ccb_scsiio *csio; 1439 struct scsi_read_capacity_data *rcap; 1440 1441 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 1442 csio = &start_ccb->csio; 1443 scsi_read_capacity(csio, 1444 /*retries*/4, 1445 dadone, 1446 MSG_SIMPLE_Q_TAG, 1447 rcap, 1448 SSD_FULL_SIZE, 1449 /*timeout*/5000); 1450 start_ccb->ccb_h.ccb_bio = NULL; 1451 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1452 xpt_action(start_ccb); 1453 break; 1454 } 1455 } 1456 } 1457 1458 static int 1459 cmd6workaround(union ccb *ccb) 1460 { 1461 struct scsi_rw_6 cmd6; 1462 struct scsi_rw_10 *cmd10; 1463 struct da_softc *softc; 1464 u_int8_t *cdb; 1465 int frozen; 1466 1467 cdb = ccb->csio.cdb_io.cdb_bytes; 1468 1469 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1470 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1471 (*cdb != READ_6 && *cdb != WRITE_6)) 1472 return 0; 1473 1474 xpt_print_path(ccb->ccb_h.path); 1475 printf("READ(6)/WRITE(6) not supported, " 1476 "increasing minimum_cmd_size to 10.\n"); 1477 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1478 softc->minimum_cmd_size = 10; 1479 1480 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1481 cmd10 = (struct scsi_rw_10 *)cdb; 1482 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1483 cmd10->byte2 = 0; 1484 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1485 cmd10->reserved = 0; 1486 scsi_ulto2b(cmd6.length, cmd10->length); 1487 cmd10->control = cmd6.control; 1488 ccb->csio.cdb_len = sizeof(*cmd10); 1489 1490 /* Requeue request, unfreezing queue if necessary */ 1491 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1492 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1493 xpt_action(ccb); 1494 if (frozen) { 1495 cam_release_devq(ccb->ccb_h.path, 1496 /*relsim_flags*/0, 1497 /*reduction*/0, 1498 /*timeout*/0, 1499 /*getcount_only*/0); 1500 } 1501 return (ERESTART); 1502 } 1503 1504 static void 1505 dadone(struct cam_periph *periph, union ccb *done_ccb) 1506 { 1507 struct da_softc *softc; 1508 struct ccb_scsiio *csio; 1509 1510 softc = (struct da_softc *)periph->softc; 1511 csio = &done_ccb->csio; 1512 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1513 case DA_CCB_BUFFER_IO: 1514 { 1515 struct buf *bp; 1516 struct bio *bio; 1517 1518 bio = (struct bio *)done_ccb->ccb_h.ccb_bio; 1519 bp = bio->bio_buf; 1520 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1521 int error; 1522 int sf; 1523 1524 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1525 sf = SF_RETRY_UA; 1526 else 1527 sf = 0; 1528 1529 /* Retry selection timeouts */ 1530 sf |= SF_RETRY_SELTO; 1531 1532 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) { 1533 /* 1534 * A retry was scheuled, so 1535 * just return. 1536 */ 1537 return; 1538 } 1539 if (error != 0) { 1540 struct bio *q_bio; 1541 struct buf *q_bp; 1542 1543 crit_enter(); 1544 1545 if (error == ENXIO) { 1546 /* 1547 * Catastrophic error. Mark our pack as 1548 * invalid. 1549 */ 1550 /* XXX See if this is really a media 1551 * change first. 1552 */ 1553 xpt_print_path(periph->path); 1554 printf("Invalidating pack\n"); 1555 softc->flags |= DA_FLAG_PACK_INVALID; 1556 } 1557 1558 /* 1559 * return all queued I/O with EIO, so that 1560 * the client can retry these I/Os in the 1561 * proper order should it attempt to recover. 1562 */ 1563 while ((q_bio = bioq_first(&softc->bio_queue)) 1564 != NULL) { 1565 bioq_remove(&softc->bio_queue, q_bio); 1566 q_bp = q_bio->bio_buf; 1567 q_bp->b_resid = q_bp->b_bcount; 1568 q_bp->b_error = EIO; 1569 q_bp->b_flags |= B_ERROR; 1570 biodone(q_bio); 1571 } 1572 crit_exit(); 1573 bp->b_error = error; 1574 bp->b_resid = bp->b_bcount; 1575 bp->b_flags |= B_ERROR; 1576 } else { 1577 bp->b_resid = csio->resid; 1578 bp->b_error = 0; 1579 if (bp->b_resid != 0) 1580 bp->b_flags |= B_ERROR; 1581 } 1582 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1583 cam_release_devq(done_ccb->ccb_h.path, 1584 /*relsim_flags*/0, 1585 /*reduction*/0, 1586 /*timeout*/0, 1587 /*getcount_only*/0); 1588 } else { 1589 bp->b_resid = csio->resid; 1590 if (csio->resid > 0) 1591 bp->b_flags |= B_ERROR; 1592 } 1593 1594 /* 1595 * Block out any asyncronous callbacks 1596 * while we touch the pending ccb list. 1597 */ 1598 crit_enter(); 1599 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1600 crit_exit(); 1601 1602 if (softc->device_stats.busy_count == 0) 1603 softc->flags |= DA_FLAG_WENT_IDLE; 1604 1605 devstat_end_transaction_buf(&softc->device_stats, bp); 1606 biodone(bio); 1607 break; 1608 } 1609 case DA_CCB_PROBE: 1610 { 1611 struct scsi_read_capacity_data *rdcap; 1612 char announce_buf[80]; 1613 1614 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1615 1616 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1617 struct disk_params *dp; 1618 1619 dasetgeom(periph, rdcap); 1620 dp = &softc->params; 1621 snprintf(announce_buf, sizeof(announce_buf), 1622 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1623 (unsigned long) (((u_int64_t)dp->secsize * 1624 dp->sectors) / (1024*1024)), dp->sectors, 1625 dp->secsize, dp->heads, dp->secs_per_track, 1626 dp->cylinders); 1627 } else { 1628 int error; 1629 1630 announce_buf[0] = '\0'; 1631 1632 /* 1633 * Retry any UNIT ATTENTION type errors. They 1634 * are expected at boot. 1635 */ 1636 error = daerror(done_ccb, 0, SF_RETRY_UA | 1637 SF_RETRY_SELTO | SF_NO_PRINT); 1638 if (error == ERESTART) { 1639 /* 1640 * A retry was scheuled, so 1641 * just return. 1642 */ 1643 return; 1644 } else if (error != 0) { 1645 struct scsi_sense_data *sense; 1646 int asc, ascq; 1647 int sense_key, error_code; 1648 int have_sense; 1649 cam_status status; 1650 struct ccb_getdev cgd; 1651 1652 /* Don't wedge this device's queue */ 1653 cam_release_devq(done_ccb->ccb_h.path, 1654 /*relsim_flags*/0, 1655 /*reduction*/0, 1656 /*timeout*/0, 1657 /*getcount_only*/0); 1658 1659 status = done_ccb->ccb_h.status; 1660 1661 xpt_setup_ccb(&cgd.ccb_h, 1662 done_ccb->ccb_h.path, 1663 /* priority */ 1); 1664 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1665 xpt_action((union ccb *)&cgd); 1666 1667 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1668 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1669 || ((status & CAM_AUTOSNS_VALID) == 0)) 1670 have_sense = FALSE; 1671 else 1672 have_sense = TRUE; 1673 1674 if (have_sense) { 1675 sense = &csio->sense_data; 1676 scsi_extract_sense(sense, &error_code, 1677 &sense_key, 1678 &asc, &ascq); 1679 } 1680 /* 1681 * Attach to anything that claims to be a 1682 * direct access or optical disk device, 1683 * as long as it doesn't return a "Logical 1684 * unit not supported" (0x25) error. 1685 */ 1686 if ((have_sense) && (asc != 0x25) 1687 && (error_code == SSD_CURRENT_ERROR)) 1688 snprintf(announce_buf, 1689 sizeof(announce_buf), 1690 "Attempt to query device " 1691 "size failed: %s, %s", 1692 scsi_sense_key_text[sense_key], 1693 scsi_sense_desc(asc,ascq, 1694 &cgd.inq_data)); 1695 else { 1696 if (have_sense) 1697 scsi_sense_print( 1698 &done_ccb->csio); 1699 else { 1700 xpt_print_path(periph->path); 1701 printf("got CAM status %#x\n", 1702 done_ccb->ccb_h.status); 1703 } 1704 1705 xpt_print_path(periph->path); 1706 printf("fatal error, failed" 1707 " to attach to device\n"); 1708 1709 /* 1710 * Free up resources. 1711 */ 1712 cam_periph_invalidate(periph); 1713 } 1714 } 1715 } 1716 free(rdcap, M_TEMP); 1717 if (announce_buf[0] != '\0') { 1718 xpt_announce_periph(periph, announce_buf); 1719 /* 1720 * Create our sysctl variables, now that we know 1721 * we have successfully attached. 1722 */ 1723 taskqueue_enqueue(taskqueue_thread[mycpuid], 1724 &softc->sysctl_task); 1725 } 1726 softc->state = DA_STATE_NORMAL; 1727 /* 1728 * Since our peripheral may be invalidated by an error 1729 * above or an external event, we must release our CCB 1730 * before releasing the probe lock on the peripheral. 1731 * The peripheral will only go away once the last lock 1732 * is removed, and we need it around for the CCB release 1733 * operation. 1734 */ 1735 xpt_release_ccb(done_ccb); 1736 cam_periph_unlock(periph); 1737 return; 1738 } 1739 case DA_CCB_WAITING: 1740 { 1741 /* Caller will release the CCB */ 1742 wakeup(&done_ccb->ccb_h.cbfcnp); 1743 return; 1744 } 1745 case DA_CCB_DUMP: 1746 /* No-op. We're polling */ 1747 return; 1748 default: 1749 break; 1750 } 1751 xpt_release_ccb(done_ccb); 1752 } 1753 1754 static int 1755 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1756 { 1757 struct da_softc *softc; 1758 struct cam_periph *periph; 1759 int error; 1760 1761 periph = xpt_path_periph(ccb->ccb_h.path); 1762 softc = (struct da_softc *)periph->softc; 1763 1764 /* 1765 * Automatically detect devices that do not support 1766 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1767 */ 1768 error = 0; 1769 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1770 error = cmd6workaround(ccb); 1771 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1772 CAM_SCSI_STATUS_ERROR) 1773 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1774 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1775 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1776 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1777 int sense_key, error_code, asc, ascq; 1778 1779 scsi_extract_sense(&ccb->csio.sense_data, 1780 &error_code, &sense_key, &asc, &ascq); 1781 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1782 error = cmd6workaround(ccb); 1783 } 1784 if (error == ERESTART) 1785 return (ERESTART); 1786 1787 /* 1788 * XXX 1789 * Until we have a better way of doing pack validation, 1790 * don't treat UAs as errors. 1791 */ 1792 sense_flags |= SF_RETRY_UA; 1793 return(cam_periph_error(ccb, cam_flags, sense_flags, 1794 &softc->saved_ccb)); 1795 } 1796 1797 static void 1798 daprevent(struct cam_periph *periph, int action) 1799 { 1800 struct da_softc *softc; 1801 union ccb *ccb; 1802 int error; 1803 1804 softc = (struct da_softc *)periph->softc; 1805 1806 if (((action == PR_ALLOW) 1807 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1808 || ((action == PR_PREVENT) 1809 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1810 return; 1811 } 1812 1813 ccb = cam_periph_getccb(periph, /*priority*/1); 1814 1815 scsi_prevent(&ccb->csio, 1816 /*retries*/1, 1817 /*cbcfp*/dadone, 1818 MSG_SIMPLE_Q_TAG, 1819 action, 1820 SSD_FULL_SIZE, 1821 5000); 1822 1823 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 1824 /*sense_flags*/0, &softc->device_stats); 1825 1826 if (error == 0) { 1827 if (action == PR_ALLOW) 1828 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1829 else 1830 softc->flags |= DA_FLAG_PACK_LOCKED; 1831 } 1832 1833 xpt_release_ccb(ccb); 1834 } 1835 1836 static void 1837 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap) 1838 { 1839 struct ccb_calc_geometry ccg; 1840 struct da_softc *softc; 1841 struct disk_params *dp; 1842 1843 softc = (struct da_softc *)periph->softc; 1844 1845 dp = &softc->params; 1846 dp->secsize = scsi_4btoul(rdcap->length); 1847 dp->sectors = scsi_4btoul(rdcap->addr) + 1; 1848 /* 1849 * Have the controller provide us with a geometry 1850 * for this disk. The only time the geometry 1851 * matters is when we boot and the controller 1852 * is the only one knowledgeable enough to come 1853 * up with something that will make this a bootable 1854 * device. 1855 */ 1856 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1857 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1858 ccg.block_size = dp->secsize; 1859 ccg.volume_size = dp->sectors; 1860 ccg.heads = 0; 1861 ccg.secs_per_track = 0; 1862 ccg.cylinders = 0; 1863 xpt_action((union ccb*)&ccg); 1864 dp->heads = ccg.heads; 1865 dp->secs_per_track = ccg.secs_per_track; 1866 dp->cylinders = ccg.cylinders; 1867 } 1868 1869 static void 1870 dasendorderedtag(void *arg) 1871 { 1872 struct da_softc *softc; 1873 1874 for (softc = SLIST_FIRST(&softc_list); 1875 softc != NULL; 1876 softc = SLIST_NEXT(softc, links)) { 1877 crit_enter(); 1878 if ((softc->ordered_tag_count == 0) 1879 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1880 softc->flags |= DA_FLAG_NEED_OTAG; 1881 } 1882 if (softc->device_stats.busy_count > 0) 1883 softc->flags &= ~DA_FLAG_WENT_IDLE; 1884 1885 softc->ordered_tag_count = 0; 1886 crit_exit(); 1887 } 1888 /* Queue us up again */ 1889 callout_reset(&dasendorderedtag_ch, 1890 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL, 1891 dasendorderedtag, NULL); 1892 } 1893 1894 /* 1895 * Step through all DA peripheral drivers, and if the device is still open, 1896 * sync the disk cache to physical media. 1897 */ 1898 static void 1899 dashutdown(void * arg, int howto) 1900 { 1901 struct cam_periph *periph; 1902 struct da_softc *softc; 1903 1904 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL; 1905 periph = TAILQ_NEXT(periph, unit_links)) { 1906 union ccb ccb; 1907 softc = (struct da_softc *)periph->softc; 1908 1909 /* 1910 * We only sync the cache if the drive is still open, and 1911 * if the drive is capable of it.. 1912 */ 1913 if (((softc->flags & DA_FLAG_OPEN) == 0) 1914 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1915 continue; 1916 1917 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1918 1919 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1920 scsi_synchronize_cache(&ccb.csio, 1921 /*retries*/1, 1922 /*cbfcnp*/dadone, 1923 MSG_SIMPLE_Q_TAG, 1924 /*begin_lba*/0, /* whole disk */ 1925 /*lb_count*/0, 1926 SSD_FULL_SIZE, 1927 5 * 60 * 1000); 1928 1929 xpt_polled_action(&ccb); 1930 1931 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1932 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1933 CAM_SCSI_STATUS_ERROR) 1934 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1935 int error_code, sense_key, asc, ascq; 1936 1937 scsi_extract_sense(&ccb.csio.sense_data, 1938 &error_code, &sense_key, 1939 &asc, &ascq); 1940 1941 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1942 scsi_sense_print(&ccb.csio); 1943 } else { 1944 xpt_print_path(periph->path); 1945 printf("Synchronize cache failed, status " 1946 "== 0x%x, scsi status == 0x%x\n", 1947 ccb.ccb_h.status, ccb.csio.scsi_status); 1948 } 1949 } 1950 1951 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1952 cam_release_devq(ccb.ccb_h.path, 1953 /*relsim_flags*/0, 1954 /*reduction*/0, 1955 /*timeout*/0, 1956 /*getcount_only*/0); 1957 1958 } 1959 } 1960 1961 #else /* !_KERNEL */ 1962 1963 /* 1964 * XXX This is only left out of the kernel build to silence warnings. If, 1965 * for some reason this function is used in the kernel, the ifdefs should 1966 * be moved so it is included both in the kernel and userland. 1967 */ 1968 void 1969 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1970 void (*cbfcnp)(struct cam_periph *, union ccb *), 1971 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1972 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1973 u_int32_t timeout) 1974 { 1975 struct scsi_format_unit *scsi_cmd; 1976 1977 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1978 scsi_cmd->opcode = FORMAT_UNIT; 1979 scsi_cmd->byte2 = byte2; 1980 scsi_ulto2b(ileave, scsi_cmd->interleave); 1981 1982 cam_fill_csio(csio, 1983 retries, 1984 cbfcnp, 1985 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1986 tag_action, 1987 data_ptr, 1988 dxfer_len, 1989 sense_len, 1990 sizeof(*scsi_cmd), 1991 timeout); 1992 } 1993 1994 #endif /* _KERNEL */ 1995