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 1.13 2004/02/16 19:43:28 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 #include <sys/disk.h> 50 #include <sys/eventhandler.h> 51 #ifdef _KERNEL 52 #include <sys/malloc.h> 53 #include <sys/cons.h> 54 #include <sys/proc.h> 55 #endif 56 #include <sys/buf2.h> 57 58 #include <machine/md_var.h> 59 60 #ifdef _KERNEL 61 #include <vm/vm.h> 62 #include <vm/pmap.h> 63 #endif 64 65 #ifndef _KERNEL 66 #include <stdio.h> 67 #include <string.h> 68 #endif /* _KERNEL */ 69 70 #include "../cam.h" 71 #include "../cam_ccb.h" 72 #include "../cam_extend.h" 73 #include "../cam_periph.h" 74 #include "../cam_xpt_periph.h" 75 76 #include "scsi_message.h" 77 78 #ifndef _KERNEL 79 #include "scsi_da.h" 80 #endif /* !_KERNEL */ 81 82 #ifdef _KERNEL 83 typedef enum { 84 DA_STATE_PROBE, 85 DA_STATE_NORMAL 86 } da_state; 87 88 typedef enum { 89 DA_FLAG_PACK_INVALID = 0x001, 90 DA_FLAG_NEW_PACK = 0x002, 91 DA_FLAG_PACK_LOCKED = 0x004, 92 DA_FLAG_PACK_REMOVABLE = 0x008, 93 DA_FLAG_TAGGED_QUEUING = 0x010, 94 DA_FLAG_NEED_OTAG = 0x020, 95 DA_FLAG_WENT_IDLE = 0x040, 96 DA_FLAG_RETRY_UA = 0x080, 97 DA_FLAG_OPEN = 0x100, 98 DA_FLAG_SCTX_INIT = 0x200 99 } da_flags; 100 101 typedef enum { 102 DA_Q_NONE = 0x00, 103 DA_Q_NO_SYNC_CACHE = 0x01, 104 DA_Q_NO_6_BYTE = 0x02, 105 DA_Q_NO_PREVENT = 0x04 106 } da_quirks; 107 108 typedef enum { 109 DA_CCB_PROBE = 0x01, 110 DA_CCB_BUFFER_IO = 0x02, 111 DA_CCB_WAITING = 0x03, 112 DA_CCB_DUMP = 0x04, 113 DA_CCB_TYPE_MASK = 0x0F, 114 DA_CCB_RETRY_UA = 0x10 115 } da_ccb_state; 116 117 /* Offsets into our private area for storing information */ 118 #define ccb_state ppriv_field0 119 #define ccb_bp ppriv_ptr1 120 121 struct disk_params { 122 u_int8_t heads; 123 u_int16_t cylinders; 124 u_int8_t secs_per_track; 125 u_int32_t secsize; /* Number of bytes/sector */ 126 u_int32_t sectors; /* total number sectors */ 127 }; 128 129 struct da_softc { 130 struct buf_queue_head buf_queue; 131 struct devstat device_stats; 132 SLIST_ENTRY(da_softc) links; 133 LIST_HEAD(, ccb_hdr) pending_ccbs; 134 da_state state; 135 da_flags flags; 136 da_quirks quirks; 137 int minimum_cmd_size; 138 int ordered_tag_count; 139 struct disk_params params; 140 struct disk disk; 141 union ccb saved_ccb; 142 struct task sysctl_task; 143 struct sysctl_ctx_list sysctl_ctx; 144 struct sysctl_oid *sysctl_tree; 145 }; 146 147 struct da_quirk_entry { 148 struct scsi_inquiry_pattern inq_pat; 149 da_quirks quirks; 150 }; 151 152 static const char quantum[] = "QUANTUM"; 153 static const char microp[] = "MICROP"; 154 155 static struct da_quirk_entry da_quirk_table[] = 156 { 157 /* SPI, FC devices */ 158 { 159 /* 160 * Fujitsu M2513A MO drives. 161 * Tested devices: M2513A2 firmware versions 1200 & 1300. 162 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 163 * Reported by: W.Scholten <whs@xs4all.nl> 164 */ 165 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 166 /*quirks*/ DA_Q_NO_SYNC_CACHE 167 }, 168 { 169 /* See above. */ 170 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 171 /*quirks*/ DA_Q_NO_SYNC_CACHE 172 }, 173 { 174 /* 175 * This particular Fujitsu drive doesn't like the 176 * synchronize cache command. 177 * Reported by: Tom Jackson <toj@gorilla.net> 178 */ 179 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 180 /*quirks*/ DA_Q_NO_SYNC_CACHE 181 182 }, 183 { 184 /* 185 * This drive doesn't like the synchronize cache command 186 * either. Reported by: Matthew Jacob <mjacob@feral.com> 187 * in NetBSD PR kern/6027, August 24, 1998. 188 */ 189 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 190 /*quirks*/ DA_Q_NO_SYNC_CACHE 191 }, 192 { 193 /* 194 * This drive doesn't like the synchronize cache command 195 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 196 * (PR 8882). 197 */ 198 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 199 /*quirks*/ DA_Q_NO_SYNC_CACHE 200 }, 201 { 202 /* 203 * Doesn't like the synchronize cache command. 204 * Reported by: Blaz Zupan <blaz@gold.amis.net> 205 */ 206 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 207 /*quirks*/ DA_Q_NO_SYNC_CACHE 208 }, 209 { 210 /* 211 * Doesn't like the synchronize cache command. 212 */ 213 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 214 /*quirks*/ DA_Q_NO_SYNC_CACHE 215 }, 216 { 217 /* 218 * Doesn't like the synchronize cache command. 219 */ 220 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 221 /*quirks*/ DA_Q_NO_SYNC_CACHE 222 }, 223 { 224 /* 225 * Doesn't work correctly with 6 byte reads/writes. 226 * Returns illegal request, and points to byte 9 of the 227 * 6-byte CDB. 228 * Reported by: Adam McDougall <bsdx@spawnet.com> 229 */ 230 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 231 /*quirks*/ DA_Q_NO_6_BYTE 232 }, 233 { 234 /* See above. */ 235 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 236 /*quirks*/ DA_Q_NO_6_BYTE 237 }, 238 /* XXX USB floppy quirks temporarily enabled for 4.9R */ 239 /* USB floppy devices supported by umass(4) */ 240 { 241 /* 242 * This USB floppy drive uses the UFI command set. This 243 * command set is a derivative of the ATAPI command set and 244 * does not support READ_6 commands only READ_10. It also does 245 * not support sync cache (0x35). 246 */ 247 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 248 /*quirks*/ DA_Q_NO_SYNC_CACHE 249 }, 250 { 251 /* Another USB floppy */ 252 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 253 /*quirks*/ DA_Q_NO_SYNC_CACHE 254 }, 255 { 256 /* 257 * The vendor, product and version strings coming from the 258 * controller are null terminated instead of being padded with 259 * spaces. The trailing wildcard character '*' is required. 260 */ 261 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 262 /*quirks*/ DA_Q_NO_SYNC_CACHE 263 }, 264 { 265 /* 266 * SmartDisk (Mitsumi) USB floppy drive 267 * PR: kern/50226 268 */ 269 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 270 /*quirks*/ DA_Q_NO_SYNC_CACHE 271 }, 272 #ifdef DA_OLD_QUIRKS 273 /* USB mass storage devices supported by umass(4) */ 274 { 275 /* 276 * Sony Memory Stick adapter MSAC-US1 and 277 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 278 * Make all sony MS* products use this quirk. 279 */ 280 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 281 /*quirks*/ DA_Q_NO_SYNC_CACHE 282 }, 283 { 284 /* 285 * Sony Memory Stick adapter for the CLIE series 286 * of PalmOS PDA's 287 */ 288 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 289 /*quirks*/ DA_Q_NO_SYNC_CACHE 290 }, 291 { 292 /* 293 * Intelligent Stick USB disk-on-key 294 * PR: kern/53005 295 */ 296 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card", 297 "IntelligentStick*", "*"}, 298 /*quirks*/ DA_Q_NO_SYNC_CACHE 299 }, 300 { 301 /* 302 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 303 */ 304 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 305 /*quirks*/ DA_Q_NO_SYNC_CACHE 306 }, 307 { 308 /* 309 * Microtech USB CameraMate 310 */ 311 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 312 "Compact Flash*", "*"}, 313 /*quirks*/ DA_Q_NO_SYNC_CACHE 314 }, 315 { 316 /* 317 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 318 */ 319 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 320 /*quirks*/ DA_Q_NO_SYNC_CACHE 321 }, 322 { 323 /* 324 * Olympus digital cameras (E-100RS, E-10). 325 */ 326 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 327 /*quirks*/ DA_Q_NO_SYNC_CACHE 328 }, 329 { 330 /* 331 * KingByte Pen Drives 332 */ 333 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 334 /*quirks*/ DA_Q_NO_SYNC_CACHE 335 }, 336 { 337 /* 338 * FujiFilm Camera 339 */ 340 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT", 341 "USB-DRIVEUNIT", "*"}, 342 /*quirks*/ DA_Q_NO_SYNC_CACHE 343 }, 344 { 345 /* 346 * Minolta Dimage E203 347 */ 348 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 349 /*quirks*/ DA_Q_NO_SYNC_CACHE 350 }, 351 { 352 /* 353 * Apacer HandyDrive 354 * PR: kern/43627 355 */ 356 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"}, 357 /*quirks*/ DA_Q_NO_SYNC_CACHE 358 }, 359 { 360 /* 361 * Daisy Technology PhotoClip on Zoran chip 362 * PR: kern/43580 363 */ 364 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 365 /*quirks*/ DA_Q_NO_SYNC_CACHE 366 }, 367 { 368 /* 369 * Sony USB Key-Storage 370 * PR: kern/46386 371 */ 372 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 373 /*quirks*/ DA_Q_NO_SYNC_CACHE 374 }, 375 #endif /* DA_OLD_QUIRKS */ 376 { 377 /* 378 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 379 * PR: kern/51675 380 */ 381 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 382 /*quirks*/ DA_Q_NO_SYNC_CACHE 383 }, 384 { 385 /* 386 * Jungsoft NEXDISK USB flash key 387 * PR: kern/54737 388 */ 389 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 390 /*quirks*/ DA_Q_NO_SYNC_CACHE 391 }, 392 { 393 /* 394 * Creative Nomad MUVO mp3 player (USB) 395 * PR: kern/53094 396 */ 397 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 398 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 399 }, 400 }; 401 402 static d_open_t daopen; 403 static d_close_t daclose; 404 static d_strategy_t dastrategy; 405 static d_ioctl_t daioctl; 406 static d_dump_t dadump; 407 static periph_init_t dainit; 408 static void daasync(void *callback_arg, u_int32_t code, 409 struct cam_path *path, void *arg); 410 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 411 static periph_ctor_t daregister; 412 static periph_dtor_t dacleanup; 413 static periph_start_t dastart; 414 static periph_oninv_t daoninvalidate; 415 static void dadone(struct cam_periph *periph, 416 union ccb *done_ccb); 417 static int daerror(union ccb *ccb, u_int32_t cam_flags, 418 u_int32_t sense_flags); 419 static void daprevent(struct cam_periph *periph, int action); 420 static void dasetgeom(struct cam_periph *periph, 421 struct scsi_read_capacity_data * rdcap); 422 static timeout_t dasendorderedtag; 423 static void dashutdown(void *arg, int howto); 424 425 #ifndef DA_DEFAULT_TIMEOUT 426 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 427 #endif 428 429 #ifndef DA_DEFAULT_RETRY 430 #define DA_DEFAULT_RETRY 4 431 #endif 432 433 static int da_retry_count = DA_DEFAULT_RETRY; 434 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 435 436 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 437 "CAM Direct Access Disk driver"); 438 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 439 &da_retry_count, 0, "Normal I/O retry count"); 440 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 441 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 442 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 443 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 444 445 /* 446 * DA_ORDEREDTAG_INTERVAL determines how often, relative 447 * to the default timeout, we check to see whether an ordered 448 * tagged transaction is appropriate to prevent simple tag 449 * starvation. Since we'd like to ensure that there is at least 450 * 1/2 of the timeout length left for a starved transaction to 451 * complete after we've sent an ordered tag, we must poll at least 452 * four times in every timeout period. This takes care of the worst 453 * case where a starved transaction starts during an interval that 454 * meets the requirement "don't send an ordered tag" test so it takes 455 * us two intervals to determine that a tag must be sent. 456 */ 457 #ifndef DA_ORDEREDTAG_INTERVAL 458 #define DA_ORDEREDTAG_INTERVAL 4 459 #endif 460 461 static struct periph_driver dadriver = 462 { 463 dainit, "da", 464 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 465 }; 466 467 DATA_SET(periphdriver_set, dadriver); 468 469 /* For 2.2-stable support */ 470 #ifndef D_DISK 471 #define D_DISK 0 472 #endif 473 474 static struct cdevsw da_cdevsw = { 475 /* name */ "da", 476 /* maj */ DA_CDEV_MAJOR, 477 /* flags */ D_DISK, 478 /* port */ NULL, 479 /* autoq */ 0, 480 481 /* open */ daopen, 482 /* close */ daclose, 483 /* read */ physread, 484 /* write */ physwrite, 485 /* ioctl */ daioctl, 486 /* poll */ nopoll, 487 /* mmap */ nommap, 488 /* strategy */ dastrategy, 489 /* dump */ dadump, 490 /* psize */ nopsize 491 }; 492 493 static SLIST_HEAD(,da_softc) softc_list; 494 static struct extend_array *daperiphs; 495 496 static int 497 daopen(dev_t dev, int flags, int fmt, struct thread *td) 498 { 499 struct cam_periph *periph; 500 struct da_softc *softc; 501 struct disklabel *label; 502 int unit; 503 int part; 504 int error; 505 int s; 506 507 unit = dkunit(dev); 508 part = dkpart(dev); 509 periph = cam_extend_get(daperiphs, unit); 510 if (periph == NULL) 511 return (ENXIO); 512 513 softc = (struct da_softc *)periph->softc; 514 515 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 516 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 517 unit, part)); 518 519 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 520 return (error); /* error code from tsleep */ 521 } 522 523 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 524 return(ENXIO); 525 softc->flags |= DA_FLAG_OPEN; 526 527 s = splsoftcam(); 528 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 529 /* Invalidate our pack information. */ 530 disk_invalidate(&softc->disk); 531 softc->flags &= ~DA_FLAG_PACK_INVALID; 532 } 533 splx(s); 534 535 /* Do a read capacity */ 536 { 537 struct scsi_read_capacity_data *rcap; 538 union ccb *ccb; 539 540 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 541 M_TEMP, 542 M_WAITOK); 543 544 ccb = cam_periph_getccb(periph, /*priority*/1); 545 scsi_read_capacity(&ccb->csio, 546 /*retries*/1, 547 /*cbfncp*/dadone, 548 MSG_SIMPLE_Q_TAG, 549 rcap, 550 SSD_FULL_SIZE, 551 /*timeout*/60000); 552 ccb->ccb_h.ccb_bp = NULL; 553 554 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 555 /*sense_flags*/SF_RETRY_UA | 556 SF_RETRY_SELTO, 557 &softc->device_stats); 558 559 xpt_release_ccb(ccb); 560 561 if (error == 0) { 562 dasetgeom(periph, rcap); 563 } 564 565 free(rcap, M_TEMP); 566 } 567 568 if (error == 0) { 569 struct ccb_getdev cgd; 570 571 /* Build label for whole disk. */ 572 label = &softc->disk.d_label; 573 bzero(label, sizeof(*label)); 574 label->d_type = DTYPE_SCSI; 575 576 /* 577 * Grab the inquiry data to get the vendor and product names. 578 * Put them in the typename and packname for the label. 579 */ 580 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 581 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 582 xpt_action((union ccb *)&cgd); 583 584 strncpy(label->d_typename, cgd.inq_data.vendor, 585 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 586 strncpy(label->d_packname, cgd.inq_data.product, 587 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 588 589 label->d_secsize = softc->params.secsize; 590 label->d_nsectors = softc->params.secs_per_track; 591 label->d_ntracks = softc->params.heads; 592 label->d_ncylinders = softc->params.cylinders; 593 label->d_secpercyl = softc->params.heads 594 * softc->params.secs_per_track; 595 label->d_secperunit = softc->params.sectors; 596 597 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 598 (softc->quirks & DA_Q_NO_PREVENT) == 0) 599 daprevent(periph, PR_PREVENT); 600 601 /* 602 * Check to see whether or not the blocksize is set yet. 603 * If it isn't, set it and then clear the blocksize 604 * unavailable flag for the device statistics. 605 */ 606 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 607 softc->device_stats.block_size = softc->params.secsize; 608 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 609 } 610 } 611 612 if (error != 0) { 613 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 614 (softc->quirks & DA_Q_NO_PREVENT) == 0) 615 daprevent(periph, PR_ALLOW); 616 softc->flags &= ~DA_FLAG_OPEN; 617 cam_periph_release(periph); 618 } 619 cam_periph_unlock(periph); 620 return (error); 621 } 622 623 static int 624 daclose(dev_t dev, int flag, int fmt, struct thread *td) 625 { 626 struct cam_periph *periph; 627 struct da_softc *softc; 628 int unit; 629 int error; 630 631 unit = dkunit(dev); 632 periph = cam_extend_get(daperiphs, unit); 633 if (periph == NULL) 634 return (ENXIO); 635 636 softc = (struct da_softc *)periph->softc; 637 638 if ((error = cam_periph_lock(periph, 0)) != 0) { 639 return (error); /* error code from tsleep */ 640 } 641 642 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 643 union ccb *ccb; 644 645 ccb = cam_periph_getccb(periph, /*priority*/1); 646 647 scsi_synchronize_cache(&ccb->csio, 648 /*retries*/1, 649 /*cbfcnp*/dadone, 650 MSG_SIMPLE_Q_TAG, 651 /*begin_lba*/0,/* Cover the whole disk */ 652 /*lb_count*/0, 653 SSD_FULL_SIZE, 654 5 * 60 * 1000); 655 656 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 657 /*sense_flags*/SF_RETRY_UA, 658 &softc->device_stats); 659 660 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 661 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 662 CAM_SCSI_STATUS_ERROR) { 663 int asc, ascq; 664 int sense_key, error_code; 665 666 scsi_extract_sense(&ccb->csio.sense_data, 667 &error_code, 668 &sense_key, 669 &asc, &ascq); 670 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 671 scsi_sense_print(&ccb->csio); 672 } else { 673 xpt_print_path(periph->path); 674 printf("Synchronize cache failed, status " 675 "== 0x%x, scsi status == 0x%x\n", 676 ccb->csio.ccb_h.status, 677 ccb->csio.scsi_status); 678 } 679 } 680 681 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 682 cam_release_devq(ccb->ccb_h.path, 683 /*relsim_flags*/0, 684 /*reduction*/0, 685 /*timeout*/0, 686 /*getcount_only*/0); 687 688 xpt_release_ccb(ccb); 689 690 } 691 692 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 693 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 694 daprevent(periph, PR_ALLOW); 695 /* 696 * If we've got removeable media, mark the blocksize as 697 * unavailable, since it could change when new media is 698 * inserted. 699 */ 700 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 701 } 702 703 softc->flags &= ~DA_FLAG_OPEN; 704 cam_periph_unlock(periph); 705 cam_periph_release(periph); 706 return (0); 707 } 708 709 /* 710 * Actually translate the requested transfer into one the physical driver 711 * can understand. The transfer is described by a buf and will include 712 * only one physical transfer. 713 */ 714 static void 715 dastrategy(struct buf *bp) 716 { 717 struct cam_periph *periph; 718 struct da_softc *softc; 719 u_int unit; 720 u_int part; 721 int s; 722 723 unit = dkunit(bp->b_dev); 724 part = dkpart(bp->b_dev); 725 periph = cam_extend_get(daperiphs, unit); 726 if (periph == NULL) { 727 bp->b_error = ENXIO; 728 goto bad; 729 } 730 softc = (struct da_softc *)periph->softc; 731 #if 0 732 /* 733 * check it's not too big a transfer for our adapter 734 */ 735 scsi_minphys(bp,&sd_switch); 736 #endif 737 738 /* 739 * Mask interrupts so that the pack cannot be invalidated until 740 * after we are in the queue. Otherwise, we might not properly 741 * clean up one of the buffers. 742 */ 743 s = splbio(); 744 745 /* 746 * If the device has been made invalid, error out 747 */ 748 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 749 splx(s); 750 bp->b_error = ENXIO; 751 goto bad; 752 } 753 754 /* 755 * Place it in the queue of disk activities for this disk 756 */ 757 bufqdisksort(&softc->buf_queue, bp); 758 759 splx(s); 760 761 /* 762 * Schedule ourselves for performing the work. 763 */ 764 xpt_schedule(periph, /* XXX priority */1); 765 766 return; 767 bad: 768 bp->b_flags |= B_ERROR; 769 770 /* 771 * Correctly set the buf to indicate a completed xfer 772 */ 773 bp->b_resid = bp->b_bcount; 774 biodone(bp); 775 return; 776 } 777 778 /* For 2.2-stable support */ 779 #ifndef ENOIOCTL 780 #define ENOIOCTL -1 781 #endif 782 783 static int 784 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 785 { 786 struct cam_periph *periph; 787 struct da_softc *softc; 788 int unit; 789 int error; 790 791 unit = dkunit(dev); 792 periph = cam_extend_get(daperiphs, unit); 793 if (periph == NULL) 794 return (ENXIO); 795 796 softc = (struct da_softc *)periph->softc; 797 798 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 799 800 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 801 return (error); /* error code from tsleep */ 802 } 803 804 error = cam_periph_ioctl(periph, cmd, addr, daerror); 805 806 cam_periph_unlock(periph); 807 808 return (error); 809 } 810 811 static int 812 dadump(dev_t dev) 813 { 814 struct cam_periph *periph; 815 struct da_softc *softc; 816 u_int unit; 817 u_int part; 818 u_int secsize; 819 u_int num; /* number of sectors to write */ 820 u_int blknum; 821 long blkcnt; 822 vm_paddr_t addr; 823 struct ccb_scsiio csio; 824 int dumppages = MAXDUMPPGS; 825 int error; 826 int i; 827 828 /* toss any characters present prior to dump */ 829 while (cncheckc() != -1) 830 ; 831 832 unit = dkunit(dev); 833 part = dkpart(dev); 834 periph = cam_extend_get(daperiphs, unit); 835 if (periph == NULL) { 836 return (ENXIO); 837 } 838 softc = (struct da_softc *)periph->softc; 839 840 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 841 return (ENXIO); 842 843 error = disk_dumpcheck(dev, &num, &blknum, &secsize); 844 if (error) 845 return (error); 846 847 addr = 0; /* starting address */ 848 blkcnt = howmany(PAGE_SIZE, secsize); 849 850 while (num > 0) { 851 caddr_t va = NULL; 852 853 if ((num / blkcnt) < dumppages) 854 dumppages = num / blkcnt; 855 856 for (i = 0; i < dumppages; ++i) { 857 vm_paddr_t a = addr + (i * PAGE_SIZE); 858 if (is_physical_memory(a)) 859 va = pmap_kenter_temporary(trunc_page(a), i); 860 else 861 va = pmap_kenter_temporary(trunc_page(0), i); 862 } 863 864 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 865 csio.ccb_h.ccb_state = DA_CCB_DUMP; 866 scsi_read_write(&csio, 867 /*retries*/1, 868 dadone, 869 MSG_ORDERED_Q_TAG, 870 /*read*/FALSE, 871 /*byte2*/0, 872 /*minimum_cmd_size*/ softc->minimum_cmd_size, 873 blknum, 874 blkcnt * dumppages, 875 /*data_ptr*/(u_int8_t *) va, 876 /*dxfer_len*/blkcnt * secsize * dumppages, 877 /*sense_len*/SSD_FULL_SIZE, 878 DA_DEFAULT_TIMEOUT * 1000); 879 xpt_polled_action((union ccb *)&csio); 880 881 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 882 printf("Aborting dump due to I/O error.\n"); 883 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 884 CAM_SCSI_STATUS_ERROR) 885 scsi_sense_print(&csio); 886 else 887 printf("status == 0x%x, scsi status == 0x%x\n", 888 csio.ccb_h.status, csio.scsi_status); 889 return(EIO); 890 } 891 892 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0) 893 return (EINTR); 894 895 /* update block count */ 896 num -= blkcnt * dumppages; 897 blknum += blkcnt * dumppages; 898 addr += PAGE_SIZE * dumppages; 899 } 900 901 /* 902 * Sync the disk cache contents to the physical media. 903 */ 904 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 905 906 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 907 csio.ccb_h.ccb_state = DA_CCB_DUMP; 908 scsi_synchronize_cache(&csio, 909 /*retries*/1, 910 /*cbfcnp*/dadone, 911 MSG_SIMPLE_Q_TAG, 912 /*begin_lba*/0,/* Cover the whole disk */ 913 /*lb_count*/0, 914 SSD_FULL_SIZE, 915 5 * 60 * 1000); 916 xpt_polled_action((union ccb *)&csio); 917 918 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 919 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 920 CAM_SCSI_STATUS_ERROR) { 921 int asc, ascq; 922 int sense_key, error_code; 923 924 scsi_extract_sense(&csio.sense_data, 925 &error_code, 926 &sense_key, 927 &asc, &ascq); 928 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 929 scsi_sense_print(&csio); 930 } else { 931 xpt_print_path(periph->path); 932 printf("Synchronize cache failed, status " 933 "== 0x%x, scsi status == 0x%x\n", 934 csio.ccb_h.status, csio.scsi_status); 935 } 936 } 937 } 938 return (0); 939 } 940 941 static void 942 dainit(void) 943 { 944 cam_status status; 945 struct cam_path *path; 946 947 /* 948 * Create our extend array for storing the devices we attach to. 949 */ 950 daperiphs = cam_extend_new(); 951 SLIST_INIT(&softc_list); 952 if (daperiphs == NULL) { 953 printf("da: Failed to alloc extend array!\n"); 954 return; 955 } 956 957 /* 958 * Install a global async callback. This callback will 959 * receive async callbacks like "new device found". 960 */ 961 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 962 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 963 964 if (status == CAM_REQ_CMP) { 965 struct ccb_setasync csa; 966 967 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 968 csa.ccb_h.func_code = XPT_SASYNC_CB; 969 csa.event_enable = AC_FOUND_DEVICE; 970 csa.callback = daasync; 971 csa.callback_arg = NULL; 972 xpt_action((union ccb *)&csa); 973 status = csa.ccb_h.status; 974 xpt_free_path(path); 975 } 976 977 if (status != CAM_REQ_CMP) { 978 printf("da: Failed to attach master async callback " 979 "due to status 0x%x!\n", status); 980 } else { 981 982 /* 983 * Schedule a periodic event to occasionally send an 984 * ordered tag to a device. 985 */ 986 timeout(dasendorderedtag, NULL, 987 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL); 988 989 /* Register our shutdown event handler */ 990 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 991 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 992 printf("dainit: shutdown event registration failed!\n"); 993 } 994 } 995 996 static void 997 daoninvalidate(struct cam_periph *periph) 998 { 999 int s; 1000 struct da_softc *softc; 1001 struct buf *q_bp; 1002 struct ccb_setasync csa; 1003 1004 softc = (struct da_softc *)periph->softc; 1005 1006 /* 1007 * De-register any async callbacks. 1008 */ 1009 xpt_setup_ccb(&csa.ccb_h, periph->path, 1010 /* priority */ 5); 1011 csa.ccb_h.func_code = XPT_SASYNC_CB; 1012 csa.event_enable = 0; 1013 csa.callback = daasync; 1014 csa.callback_arg = periph; 1015 xpt_action((union ccb *)&csa); 1016 1017 softc->flags |= DA_FLAG_PACK_INVALID; 1018 1019 /* 1020 * Although the oninvalidate() routines are always called at 1021 * splsoftcam, we need to be at splbio() here to keep the buffer 1022 * queue from being modified while we traverse it. 1023 */ 1024 s = splbio(); 1025 1026 /* 1027 * Return all queued I/O with ENXIO. 1028 * XXX Handle any transactions queued to the card 1029 * with XPT_ABORT_CCB. 1030 */ 1031 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 1032 bufq_remove(&softc->buf_queue, q_bp); 1033 q_bp->b_resid = q_bp->b_bcount; 1034 q_bp->b_error = ENXIO; 1035 q_bp->b_flags |= B_ERROR; 1036 biodone(q_bp); 1037 } 1038 splx(s); 1039 1040 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1041 1042 xpt_print_path(periph->path); 1043 printf("lost device\n"); 1044 } 1045 1046 static void 1047 dacleanup(struct cam_periph *periph) 1048 { 1049 struct da_softc *softc; 1050 1051 softc = (struct da_softc *)periph->softc; 1052 1053 devstat_remove_entry(&softc->device_stats); 1054 cam_extend_release(daperiphs, periph->unit_number); 1055 xpt_print_path(periph->path); 1056 printf("removing device entry\n"); 1057 /* 1058 * If we can't free the sysctl tree, oh well... 1059 */ 1060 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1061 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1062 xpt_print_path(periph->path); 1063 printf("can't remove sysctl context\n"); 1064 } 1065 if (softc->disk.d_dev) { 1066 disk_destroy(&softc->disk); 1067 } 1068 free(softc, M_DEVBUF); 1069 } 1070 1071 static void 1072 daasync(void *callback_arg, u_int32_t code, 1073 struct cam_path *path, void *arg) 1074 { 1075 struct cam_periph *periph; 1076 1077 periph = (struct cam_periph *)callback_arg; 1078 switch (code) { 1079 case AC_FOUND_DEVICE: 1080 { 1081 struct ccb_getdev *cgd; 1082 cam_status status; 1083 1084 cgd = (struct ccb_getdev *)arg; 1085 1086 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1087 && SID_TYPE(&cgd->inq_data) != T_RBC 1088 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1089 break; 1090 1091 /* 1092 * Allocate a peripheral instance for 1093 * this device and start the probe 1094 * process. 1095 */ 1096 status = cam_periph_alloc(daregister, daoninvalidate, 1097 dacleanup, dastart, 1098 "da", CAM_PERIPH_BIO, 1099 cgd->ccb_h.path, daasync, 1100 AC_FOUND_DEVICE, cgd); 1101 1102 if (status != CAM_REQ_CMP 1103 && status != CAM_REQ_INPROG) 1104 printf("daasync: Unable to attach to new device " 1105 "due to status 0x%x\n", status); 1106 break; 1107 } 1108 case AC_SENT_BDR: 1109 case AC_BUS_RESET: 1110 { 1111 struct da_softc *softc; 1112 struct ccb_hdr *ccbh; 1113 int s; 1114 1115 softc = (struct da_softc *)periph->softc; 1116 s = splsoftcam(); 1117 /* 1118 * Don't fail on the expected unit attention 1119 * that will occur. 1120 */ 1121 softc->flags |= DA_FLAG_RETRY_UA; 1122 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 1123 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 1124 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1125 splx(s); 1126 /* FALLTHROUGH*/ 1127 } 1128 default: 1129 cam_periph_async(periph, code, path, arg); 1130 break; 1131 } 1132 } 1133 1134 static void 1135 dasysctlinit(void *context, int pending) 1136 { 1137 struct cam_periph *periph; 1138 struct da_softc *softc; 1139 char tmpstr[80], tmpstr2[80]; 1140 1141 periph = (struct cam_periph *)context; 1142 softc = (struct da_softc *)periph->softc; 1143 1144 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1145 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1146 1147 sysctl_ctx_init(&softc->sysctl_ctx); 1148 softc->flags |= DA_FLAG_SCTX_INIT; 1149 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1150 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1151 CTLFLAG_RD, 0, tmpstr); 1152 if (softc->sysctl_tree == NULL) { 1153 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1154 return; 1155 } 1156 1157 /* 1158 * Now register the sysctl handler, so the user can the value on 1159 * the fly. 1160 */ 1161 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1162 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1163 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1164 "Minimum CDB size"); 1165 } 1166 1167 static int 1168 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1169 { 1170 int error, value; 1171 1172 value = *(int *)arg1; 1173 1174 error = sysctl_handle_int(oidp, &value, 0, req); 1175 1176 if ((error != 0) 1177 || (req->newptr == NULL)) 1178 return (error); 1179 1180 /* 1181 * Acceptable values here are 6, 10 or 12. It's possible we may 1182 * support a 16 byte minimum command size in the future, since 1183 * there are now READ(16) and WRITE(16) commands defined in the 1184 * SBC-2 spec. 1185 */ 1186 if (value < 6) 1187 value = 6; 1188 else if ((value > 6) 1189 && (value <= 10)) 1190 value = 10; 1191 else if (value > 10) 1192 value = 12; 1193 1194 *(int *)arg1 = value; 1195 1196 return (0); 1197 } 1198 1199 static cam_status 1200 daregister(struct cam_periph *periph, void *arg) 1201 { 1202 int s; 1203 struct da_softc *softc; 1204 struct ccb_setasync csa; 1205 struct ccb_pathinq cpi; 1206 struct ccb_getdev *cgd; 1207 char tmpstr[80]; 1208 caddr_t match; 1209 1210 cgd = (struct ccb_getdev *)arg; 1211 if (periph == NULL) { 1212 printf("daregister: periph was NULL!!\n"); 1213 return(CAM_REQ_CMP_ERR); 1214 } 1215 1216 if (cgd == NULL) { 1217 printf("daregister: no getdev CCB, can't register device\n"); 1218 return(CAM_REQ_CMP_ERR); 1219 } 1220 1221 softc = (struct da_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 1222 1223 if (softc == NULL) { 1224 printf("daregister: Unable to probe new device. " 1225 "Unable to allocate softc\n"); 1226 return(CAM_REQ_CMP_ERR); 1227 } 1228 1229 bzero(softc, sizeof(*softc)); 1230 LIST_INIT(&softc->pending_ccbs); 1231 softc->state = DA_STATE_PROBE; 1232 bufq_init(&softc->buf_queue); 1233 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1234 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1235 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1236 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1237 1238 periph->softc = softc; 1239 1240 cam_extend_set(daperiphs, periph->unit_number, periph); 1241 1242 /* 1243 * See if this device has any quirks. 1244 */ 1245 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1246 (caddr_t)da_quirk_table, 1247 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1248 sizeof(*da_quirk_table), scsi_inquiry_match); 1249 1250 if (match != NULL) 1251 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1252 else 1253 softc->quirks = DA_Q_NONE; 1254 1255 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1256 1257 /* Check if the SIM does not want 6 byte commands */ 1258 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1259 cpi.ccb_h.func_code = XPT_PATH_INQ; 1260 xpt_action((union ccb *)&cpi); 1261 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1262 softc->quirks |= DA_Q_NO_6_BYTE; 1263 1264 /* 1265 * RBC devices don't have to support READ(6), only READ(10). 1266 */ 1267 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1268 softc->minimum_cmd_size = 10; 1269 else 1270 softc->minimum_cmd_size = 6; 1271 1272 /* 1273 * Load the user's default, if any. 1274 */ 1275 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1276 periph->unit_number); 1277 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1278 1279 /* 1280 * 6, 10 and 12 are the currently permissible values. 1281 */ 1282 if (softc->minimum_cmd_size < 6) 1283 softc->minimum_cmd_size = 6; 1284 else if ((softc->minimum_cmd_size > 6) 1285 && (softc->minimum_cmd_size <= 10)) 1286 softc->minimum_cmd_size = 10; 1287 else if (softc->minimum_cmd_size > 12) 1288 softc->minimum_cmd_size = 12; 1289 1290 /* 1291 * Block our timeout handler while we 1292 * add this softc to the dev list. 1293 */ 1294 s = splsoftclock(); 1295 SLIST_INSERT_HEAD(&softc_list, softc, links); 1296 splx(s); 1297 1298 /* 1299 * The DA driver supports a blocksize, but 1300 * we don't know the blocksize until we do 1301 * a read capacity. So, set a flag to 1302 * indicate that the blocksize is 1303 * unavailable right now. We'll clear the 1304 * flag as soon as we've done a read capacity. 1305 */ 1306 devstat_add_entry(&softc->device_stats, "da", 1307 periph->unit_number, 0, 1308 DEVSTAT_BS_UNAVAILABLE, 1309 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1310 DEVSTAT_PRIORITY_DISK); 1311 1312 /* 1313 * Register this media as a disk 1314 */ 1315 disk_create(periph->unit_number, &softc->disk, 0, &da_cdevsw); 1316 1317 /* 1318 * Add async callbacks for bus reset and 1319 * bus device reset calls. I don't bother 1320 * checking if this fails as, in most cases, 1321 * the system will function just fine without 1322 * them and the only alternative would be to 1323 * not attach the device on failure. 1324 */ 1325 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1326 csa.ccb_h.func_code = XPT_SASYNC_CB; 1327 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1328 csa.callback = daasync; 1329 csa.callback_arg = periph; 1330 xpt_action((union ccb *)&csa); 1331 /* 1332 * Lock this peripheral until we are setup. 1333 * This first call can't block 1334 */ 1335 (void)cam_periph_lock(periph, 0); 1336 xpt_schedule(periph, /*priority*/5); 1337 1338 return(CAM_REQ_CMP); 1339 } 1340 1341 static void 1342 dastart(struct cam_periph *periph, union ccb *start_ccb) 1343 { 1344 struct da_softc *softc; 1345 1346 softc = (struct da_softc *)periph->softc; 1347 1348 1349 switch (softc->state) { 1350 case DA_STATE_NORMAL: 1351 { 1352 /* Pull a buffer from the queue and get going on it */ 1353 struct buf *bp; 1354 int s; 1355 1356 /* 1357 * See if there is a buf with work for us to do.. 1358 */ 1359 s = splbio(); 1360 bp = bufq_first(&softc->buf_queue); 1361 if (periph->immediate_priority <= periph->pinfo.priority) { 1362 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1363 ("queuing for immediate ccb\n")); 1364 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1365 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1366 periph_links.sle); 1367 periph->immediate_priority = CAM_PRIORITY_NONE; 1368 splx(s); 1369 wakeup(&periph->ccb_list); 1370 } else if (bp == NULL) { 1371 splx(s); 1372 xpt_release_ccb(start_ccb); 1373 } else { 1374 int oldspl; 1375 u_int8_t tag_code; 1376 1377 bufq_remove(&softc->buf_queue, bp); 1378 1379 devstat_start_transaction(&softc->device_stats); 1380 1381 if ((bp->b_flags & B_ORDERED) != 0 1382 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1383 softc->flags &= ~DA_FLAG_NEED_OTAG; 1384 softc->ordered_tag_count++; 1385 tag_code = MSG_ORDERED_Q_TAG; 1386 } else { 1387 tag_code = MSG_SIMPLE_Q_TAG; 1388 } 1389 scsi_read_write(&start_ccb->csio, 1390 /*retries*/da_retry_count, 1391 dadone, 1392 tag_code, 1393 bp->b_flags & B_READ, 1394 /*byte2*/0, 1395 softc->minimum_cmd_size, 1396 bp->b_pblkno, 1397 bp->b_bcount / softc->params.secsize, 1398 bp->b_data, 1399 bp->b_bcount, 1400 /*sense_len*/SSD_FULL_SIZE, 1401 da_default_timeout * 1000); 1402 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1403 1404 /* 1405 * Block out any asyncronous callbacks 1406 * while we touch the pending ccb list. 1407 */ 1408 oldspl = splcam(); 1409 LIST_INSERT_HEAD(&softc->pending_ccbs, 1410 &start_ccb->ccb_h, periph_links.le); 1411 splx(oldspl); 1412 1413 /* We expect a unit attention from this device */ 1414 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) { 1415 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA; 1416 softc->flags &= ~DA_FLAG_RETRY_UA; 1417 } 1418 1419 start_ccb->ccb_h.ccb_bp = bp; 1420 bp = bufq_first(&softc->buf_queue); 1421 splx(s); 1422 1423 xpt_action(start_ccb); 1424 } 1425 1426 if (bp != NULL) { 1427 /* Have more work to do, so ensure we stay scheduled */ 1428 xpt_schedule(periph, /* XXX priority */1); 1429 } 1430 break; 1431 } 1432 case DA_STATE_PROBE: 1433 { 1434 struct ccb_scsiio *csio; 1435 struct scsi_read_capacity_data *rcap; 1436 1437 rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcap), 1438 M_TEMP, 1439 M_NOWAIT); 1440 if (rcap == NULL) { 1441 printf("dastart: Couldn't malloc read_capacity data\n"); 1442 /* da_free_periph??? */ 1443 break; 1444 } 1445 csio = &start_ccb->csio; 1446 scsi_read_capacity(csio, 1447 /*retries*/4, 1448 dadone, 1449 MSG_SIMPLE_Q_TAG, 1450 rcap, 1451 SSD_FULL_SIZE, 1452 /*timeout*/5000); 1453 start_ccb->ccb_h.ccb_bp = NULL; 1454 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1455 xpt_action(start_ccb); 1456 break; 1457 } 1458 } 1459 } 1460 1461 static int 1462 cmd6workaround(union ccb *ccb) 1463 { 1464 struct scsi_rw_6 cmd6; 1465 struct scsi_rw_10 *cmd10; 1466 struct da_softc *softc; 1467 u_int8_t *cdb; 1468 int frozen; 1469 1470 cdb = ccb->csio.cdb_io.cdb_bytes; 1471 1472 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1473 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1474 (*cdb != READ_6 && *cdb != WRITE_6)) 1475 return 0; 1476 1477 xpt_print_path(ccb->ccb_h.path); 1478 printf("READ(6)/WRITE(6) not supported, " 1479 "increasing minimum_cmd_size to 10.\n"); 1480 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1481 softc->minimum_cmd_size = 10; 1482 1483 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1484 cmd10 = (struct scsi_rw_10 *)cdb; 1485 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1486 cmd10->byte2 = 0; 1487 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1488 cmd10->reserved = 0; 1489 scsi_ulto2b(cmd6.length, cmd10->length); 1490 cmd10->control = cmd6.control; 1491 ccb->csio.cdb_len = sizeof(*cmd10); 1492 1493 /* Requeue request, unfreezing queue if necessary */ 1494 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1495 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1496 xpt_action(ccb); 1497 if (frozen) { 1498 cam_release_devq(ccb->ccb_h.path, 1499 /*relsim_flags*/0, 1500 /*reduction*/0, 1501 /*timeout*/0, 1502 /*getcount_only*/0); 1503 } 1504 return (ERESTART); 1505 } 1506 1507 static void 1508 dadone(struct cam_periph *periph, union ccb *done_ccb) 1509 { 1510 struct da_softc *softc; 1511 struct ccb_scsiio *csio; 1512 1513 softc = (struct da_softc *)periph->softc; 1514 csio = &done_ccb->csio; 1515 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1516 case DA_CCB_BUFFER_IO: 1517 { 1518 struct buf *bp; 1519 int oldspl; 1520 1521 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1522 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1523 int error; 1524 int s; 1525 int sf; 1526 1527 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1528 sf = SF_RETRY_UA; 1529 else 1530 sf = 0; 1531 1532 /* Retry selection timeouts */ 1533 sf |= SF_RETRY_SELTO; 1534 1535 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) { 1536 /* 1537 * A retry was scheuled, so 1538 * just return. 1539 */ 1540 return; 1541 } 1542 if (error != 0) { 1543 struct buf *q_bp; 1544 1545 s = splbio(); 1546 1547 if (error == ENXIO) { 1548 /* 1549 * Catastrophic error. Mark our pack as 1550 * invalid. 1551 */ 1552 /* XXX See if this is really a media 1553 * change first. 1554 */ 1555 xpt_print_path(periph->path); 1556 printf("Invalidating pack\n"); 1557 softc->flags |= DA_FLAG_PACK_INVALID; 1558 } 1559 1560 /* 1561 * return all queued I/O with EIO, so that 1562 * the client can retry these I/Os in the 1563 * proper order should it attempt to recover. 1564 */ 1565 while ((q_bp = bufq_first(&softc->buf_queue)) 1566 != NULL) { 1567 bufq_remove(&softc->buf_queue, q_bp); 1568 q_bp->b_resid = q_bp->b_bcount; 1569 q_bp->b_error = EIO; 1570 q_bp->b_flags |= B_ERROR; 1571 biodone(q_bp); 1572 } 1573 splx(s); 1574 bp->b_error = error; 1575 bp->b_resid = bp->b_bcount; 1576 bp->b_flags |= B_ERROR; 1577 } else { 1578 bp->b_resid = csio->resid; 1579 bp->b_error = 0; 1580 if (bp->b_resid != 0) 1581 bp->b_flags |= B_ERROR; 1582 } 1583 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1584 cam_release_devq(done_ccb->ccb_h.path, 1585 /*relsim_flags*/0, 1586 /*reduction*/0, 1587 /*timeout*/0, 1588 /*getcount_only*/0); 1589 } else { 1590 bp->b_resid = csio->resid; 1591 if (csio->resid > 0) 1592 bp->b_flags |= B_ERROR; 1593 } 1594 1595 /* 1596 * Block out any asyncronous callbacks 1597 * while we touch the pending ccb list. 1598 */ 1599 oldspl = splcam(); 1600 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1601 splx(oldspl); 1602 1603 if (softc->device_stats.busy_count == 0) 1604 softc->flags |= DA_FLAG_WENT_IDLE; 1605 1606 devstat_end_transaction_buf(&softc->device_stats, bp); 1607 biodone(bp); 1608 break; 1609 } 1610 case DA_CCB_PROBE: 1611 { 1612 struct scsi_read_capacity_data *rdcap; 1613 char announce_buf[80]; 1614 1615 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1616 1617 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1618 struct disk_params *dp; 1619 1620 dasetgeom(periph, rdcap); 1621 dp = &softc->params; 1622 snprintf(announce_buf, sizeof(announce_buf), 1623 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1624 (unsigned long) (((u_int64_t)dp->secsize * 1625 dp->sectors) / (1024*1024)), dp->sectors, 1626 dp->secsize, dp->heads, dp->secs_per_track, 1627 dp->cylinders); 1628 } else { 1629 int error; 1630 1631 announce_buf[0] = '\0'; 1632 1633 /* 1634 * Retry any UNIT ATTENTION type errors. They 1635 * are expected at boot. 1636 */ 1637 error = daerror(done_ccb, 0, SF_RETRY_UA | 1638 SF_RETRY_SELTO | SF_NO_PRINT); 1639 if (error == ERESTART) { 1640 /* 1641 * A retry was scheuled, so 1642 * just return. 1643 */ 1644 return; 1645 } else if (error != 0) { 1646 struct scsi_sense_data *sense; 1647 int asc, ascq; 1648 int sense_key, error_code; 1649 int have_sense; 1650 cam_status status; 1651 struct ccb_getdev cgd; 1652 1653 /* Don't wedge this device's queue */ 1654 cam_release_devq(done_ccb->ccb_h.path, 1655 /*relsim_flags*/0, 1656 /*reduction*/0, 1657 /*timeout*/0, 1658 /*getcount_only*/0); 1659 1660 status = done_ccb->ccb_h.status; 1661 1662 xpt_setup_ccb(&cgd.ccb_h, 1663 done_ccb->ccb_h.path, 1664 /* priority */ 1); 1665 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1666 xpt_action((union ccb *)&cgd); 1667 1668 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1669 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1670 || ((status & CAM_AUTOSNS_VALID) == 0)) 1671 have_sense = FALSE; 1672 else 1673 have_sense = TRUE; 1674 1675 if (have_sense) { 1676 sense = &csio->sense_data; 1677 scsi_extract_sense(sense, &error_code, 1678 &sense_key, 1679 &asc, &ascq); 1680 } 1681 /* 1682 * Attach to anything that claims to be a 1683 * direct access or optical disk device, 1684 * as long as it doesn't return a "Logical 1685 * unit not supported" (0x25) error. 1686 */ 1687 if ((have_sense) && (asc != 0x25) 1688 && (error_code == SSD_CURRENT_ERROR)) 1689 snprintf(announce_buf, 1690 sizeof(announce_buf), 1691 "Attempt to query device " 1692 "size failed: %s, %s", 1693 scsi_sense_key_text[sense_key], 1694 scsi_sense_desc(asc,ascq, 1695 &cgd.inq_data)); 1696 else { 1697 if (have_sense) 1698 scsi_sense_print( 1699 &done_ccb->csio); 1700 else { 1701 xpt_print_path(periph->path); 1702 printf("got CAM status %#x\n", 1703 done_ccb->ccb_h.status); 1704 } 1705 1706 xpt_print_path(periph->path); 1707 printf("fatal error, failed" 1708 " to attach to device\n"); 1709 1710 /* 1711 * Free up resources. 1712 */ 1713 cam_periph_invalidate(periph); 1714 } 1715 } 1716 } 1717 free(rdcap, M_TEMP); 1718 if (announce_buf[0] != '\0') { 1719 xpt_announce_periph(periph, announce_buf); 1720 /* 1721 * Create our sysctl variables, now that we know 1722 * we have successfully attached. 1723 */ 1724 taskqueue_enqueue(taskqueue_thread,&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 int s; 1874 1875 for (softc = SLIST_FIRST(&softc_list); 1876 softc != NULL; 1877 softc = SLIST_NEXT(softc, links)) { 1878 s = splsoftcam(); 1879 if ((softc->ordered_tag_count == 0) 1880 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1881 softc->flags |= DA_FLAG_NEED_OTAG; 1882 } 1883 if (softc->device_stats.busy_count > 0) 1884 softc->flags &= ~DA_FLAG_WENT_IDLE; 1885 1886 softc->ordered_tag_count = 0; 1887 splx(s); 1888 } 1889 /* Queue us up again */ 1890 timeout(dasendorderedtag, NULL, 1891 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL); 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