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 1.21 2004/12/30 07:01:51 cpressey 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 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 * iRiver iFP MP3 player (with UMS Firmware) 339 * PR: kern/54881, i386/63941, kern/66124 340 */ 341 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 342 /*quirks*/ DA_Q_NO_SYNC_CACHE 343 }, 344 { 345 /* 346 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 347 * PR: kern/70158 348 */ 349 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "NexIA+*", "*"}, 350 /*quirks*/ DA_Q_NO_SYNC_CACHE 351 }, 352 { 353 /* 354 * FujiFilm Camera 355 */ 356 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT", 357 "USB-DRIVEUNIT", "*"}, 358 /*quirks*/ DA_Q_NO_SYNC_CACHE 359 }, 360 { 361 /* 362 * Minolta Dimage E203 363 */ 364 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 365 /*quirks*/ DA_Q_NO_SYNC_CACHE 366 }, 367 { 368 /* 369 * Apacer HandyDrive 370 * PR: kern/43627 371 */ 372 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"}, 373 /*quirks*/ DA_Q_NO_SYNC_CACHE 374 }, 375 { 376 /* 377 * Daisy Technology PhotoClip on Zoran chip 378 * PR: kern/43580 379 */ 380 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 381 /*quirks*/ DA_Q_NO_SYNC_CACHE 382 }, 383 { 384 /* 385 * Sony USB Key-Storage 386 * PR: kern/46386 387 */ 388 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 389 /*quirks*/ DA_Q_NO_SYNC_CACHE 390 }, 391 #endif /* DA_OLD_QUIRKS */ 392 { 393 /* 394 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 395 * PR: kern/51675 396 */ 397 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 398 /*quirks*/ DA_Q_NO_SYNC_CACHE 399 }, 400 { 401 /* 402 * Jungsoft NEXDISK USB flash key 403 * PR: kern/54737 404 */ 405 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 406 /*quirks*/ DA_Q_NO_SYNC_CACHE 407 }, 408 { 409 /* 410 * Creative Nomad MUVO mp3 player (USB) 411 * PR: kern/53094 412 */ 413 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 414 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 415 }, 416 }; 417 418 static d_open_t daopen; 419 static d_close_t daclose; 420 static d_strategy_t dastrategy; 421 static d_ioctl_t daioctl; 422 static d_dump_t dadump; 423 static periph_init_t dainit; 424 static void daasync(void *callback_arg, u_int32_t code, 425 struct cam_path *path, void *arg); 426 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 427 static periph_ctor_t daregister; 428 static periph_dtor_t dacleanup; 429 static periph_start_t dastart; 430 static periph_oninv_t daoninvalidate; 431 static void dadone(struct cam_periph *periph, 432 union ccb *done_ccb); 433 static int daerror(union ccb *ccb, u_int32_t cam_flags, 434 u_int32_t sense_flags); 435 static void daprevent(struct cam_periph *periph, int action); 436 static void dasetgeom(struct cam_periph *periph, 437 struct scsi_read_capacity_data * rdcap); 438 static timeout_t dasendorderedtag; 439 static void dashutdown(void *arg, int howto); 440 441 #ifndef DA_DEFAULT_TIMEOUT 442 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 443 #endif 444 445 #ifndef DA_DEFAULT_RETRY 446 #define DA_DEFAULT_RETRY 4 447 #endif 448 449 static int da_retry_count = DA_DEFAULT_RETRY; 450 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 451 static struct callout dasendorderedtag_ch; 452 453 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 454 "CAM Direct Access Disk driver"); 455 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 456 &da_retry_count, 0, "Normal I/O retry count"); 457 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 458 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 459 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 460 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 461 462 /* 463 * DA_ORDEREDTAG_INTERVAL determines how often, relative 464 * to the default timeout, we check to see whether an ordered 465 * tagged transaction is appropriate to prevent simple tag 466 * starvation. Since we'd like to ensure that there is at least 467 * 1/2 of the timeout length left for a starved transaction to 468 * complete after we've sent an ordered tag, we must poll at least 469 * four times in every timeout period. This takes care of the worst 470 * case where a starved transaction starts during an interval that 471 * meets the requirement "don't send an ordered tag" test so it takes 472 * us two intervals to determine that a tag must be sent. 473 */ 474 #ifndef DA_ORDEREDTAG_INTERVAL 475 #define DA_ORDEREDTAG_INTERVAL 4 476 #endif 477 478 static struct periph_driver dadriver = 479 { 480 dainit, "da", 481 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 482 }; 483 484 DATA_SET(periphdriver_set, dadriver); 485 486 /* For 2.2-stable support */ 487 #ifndef D_DISK 488 #define D_DISK 0 489 #endif 490 491 static struct cdevsw da_cdevsw = { 492 /* name */ "da", 493 /* maj */ DA_CDEV_MAJOR, 494 /* flags */ D_DISK, 495 /* port */ NULL, 496 /* clone */ NULL, 497 498 /* open */ daopen, 499 /* close */ daclose, 500 /* read */ physread, 501 /* write */ physwrite, 502 /* ioctl */ daioctl, 503 /* poll */ nopoll, 504 /* mmap */ nommap, 505 /* strategy */ dastrategy, 506 /* dump */ dadump, 507 /* psize */ nopsize 508 }; 509 510 static SLIST_HEAD(,da_softc) softc_list; 511 static struct extend_array *daperiphs; 512 513 static int 514 daopen(dev_t dev, int flags, int fmt, struct thread *td) 515 { 516 struct cam_periph *periph; 517 struct da_softc *softc; 518 struct disklabel *label; 519 int unit; 520 int part; 521 int error; 522 int s; 523 524 unit = dkunit(dev); 525 part = dkpart(dev); 526 periph = cam_extend_get(daperiphs, unit); 527 if (periph == NULL) 528 return (ENXIO); 529 530 softc = (struct da_softc *)periph->softc; 531 532 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 533 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 534 unit, part)); 535 536 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 537 return (error); /* error code from tsleep */ 538 } 539 540 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 541 return(ENXIO); 542 softc->flags |= DA_FLAG_OPEN; 543 544 s = splsoftcam(); 545 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 546 /* Invalidate our pack information. */ 547 disk_invalidate(&softc->disk); 548 softc->flags &= ~DA_FLAG_PACK_INVALID; 549 } 550 splx(s); 551 552 /* Do a read capacity */ 553 { 554 struct scsi_read_capacity_data *rcap; 555 union ccb *ccb; 556 557 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 558 559 ccb = cam_periph_getccb(periph, /*priority*/1); 560 scsi_read_capacity(&ccb->csio, 561 /*retries*/1, 562 /*cbfncp*/dadone, 563 MSG_SIMPLE_Q_TAG, 564 rcap, 565 SSD_FULL_SIZE, 566 /*timeout*/60000); 567 ccb->ccb_h.ccb_bp = NULL; 568 569 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 570 /*sense_flags*/SF_RETRY_UA | 571 SF_RETRY_SELTO, 572 &softc->device_stats); 573 574 xpt_release_ccb(ccb); 575 576 if (error == 0) { 577 dasetgeom(periph, rcap); 578 } 579 580 free(rcap, M_TEMP); 581 } 582 583 if (error == 0) { 584 struct ccb_getdev cgd; 585 586 /* Build label for whole disk. */ 587 label = &softc->disk.d_label; 588 bzero(label, sizeof(*label)); 589 label->d_type = DTYPE_SCSI; 590 591 /* 592 * Grab the inquiry data to get the vendor and product names. 593 * Put them in the typename and packname for the label. 594 */ 595 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 596 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 597 xpt_action((union ccb *)&cgd); 598 599 strncpy(label->d_typename, cgd.inq_data.vendor, 600 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 601 strncpy(label->d_packname, cgd.inq_data.product, 602 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 603 604 label->d_secsize = softc->params.secsize; 605 label->d_nsectors = softc->params.secs_per_track; 606 label->d_ntracks = softc->params.heads; 607 label->d_ncylinders = softc->params.cylinders; 608 label->d_secpercyl = softc->params.heads 609 * softc->params.secs_per_track; 610 label->d_secperunit = softc->params.sectors; 611 612 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 613 (softc->quirks & DA_Q_NO_PREVENT) == 0) 614 daprevent(periph, PR_PREVENT); 615 616 /* 617 * Check to see whether or not the blocksize is set yet. 618 * If it isn't, set it and then clear the blocksize 619 * unavailable flag for the device statistics. 620 */ 621 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 622 softc->device_stats.block_size = softc->params.secsize; 623 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 624 } 625 } 626 627 if (error != 0) { 628 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 629 (softc->quirks & DA_Q_NO_PREVENT) == 0) 630 daprevent(periph, PR_ALLOW); 631 softc->flags &= ~DA_FLAG_OPEN; 632 cam_periph_release(periph); 633 } 634 cam_periph_unlock(periph); 635 return (error); 636 } 637 638 static int 639 daclose(dev_t dev, int flag, int fmt, struct thread *td) 640 { 641 struct cam_periph *periph; 642 struct da_softc *softc; 643 int unit; 644 int error; 645 646 unit = dkunit(dev); 647 periph = cam_extend_get(daperiphs, unit); 648 if (periph == NULL) 649 return (ENXIO); 650 651 softc = (struct da_softc *)periph->softc; 652 653 if ((error = cam_periph_lock(periph, 0)) != 0) { 654 return (error); /* error code from tsleep */ 655 } 656 657 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 658 union ccb *ccb; 659 660 ccb = cam_periph_getccb(periph, /*priority*/1); 661 662 scsi_synchronize_cache(&ccb->csio, 663 /*retries*/1, 664 /*cbfcnp*/dadone, 665 MSG_SIMPLE_Q_TAG, 666 /*begin_lba*/0,/* Cover the whole disk */ 667 /*lb_count*/0, 668 SSD_FULL_SIZE, 669 5 * 60 * 1000); 670 671 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 672 /*sense_flags*/SF_RETRY_UA, 673 &softc->device_stats); 674 675 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 676 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 677 CAM_SCSI_STATUS_ERROR) { 678 int asc, ascq; 679 int sense_key, error_code; 680 681 scsi_extract_sense(&ccb->csio.sense_data, 682 &error_code, 683 &sense_key, 684 &asc, &ascq); 685 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 686 scsi_sense_print(&ccb->csio); 687 } else { 688 xpt_print_path(periph->path); 689 printf("Synchronize cache failed, status " 690 "== 0x%x, scsi status == 0x%x\n", 691 ccb->csio.ccb_h.status, 692 ccb->csio.scsi_status); 693 } 694 } 695 696 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 697 cam_release_devq(ccb->ccb_h.path, 698 /*relsim_flags*/0, 699 /*reduction*/0, 700 /*timeout*/0, 701 /*getcount_only*/0); 702 703 xpt_release_ccb(ccb); 704 705 } 706 707 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 708 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 709 daprevent(periph, PR_ALLOW); 710 /* 711 * If we've got removeable media, mark the blocksize as 712 * unavailable, since it could change when new media is 713 * inserted. 714 */ 715 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 716 } 717 718 softc->flags &= ~DA_FLAG_OPEN; 719 cam_periph_unlock(periph); 720 cam_periph_release(periph); 721 return (0); 722 } 723 724 /* 725 * Actually translate the requested transfer into one the physical driver 726 * can understand. The transfer is described by a buf and will include 727 * only one physical transfer. 728 */ 729 static void 730 dastrategy(struct buf *bp) 731 { 732 struct cam_periph *periph; 733 struct da_softc *softc; 734 u_int unit; 735 u_int part; 736 int s; 737 738 unit = dkunit(bp->b_dev); 739 part = dkpart(bp->b_dev); 740 periph = cam_extend_get(daperiphs, unit); 741 if (periph == NULL) { 742 bp->b_error = ENXIO; 743 goto bad; 744 } 745 softc = (struct da_softc *)periph->softc; 746 #if 0 747 /* 748 * check it's not too big a transfer for our adapter 749 */ 750 scsi_minphys(bp,&sd_switch); 751 #endif 752 753 /* 754 * Mask interrupts so that the pack cannot be invalidated until 755 * after we are in the queue. Otherwise, we might not properly 756 * clean up one of the buffers. 757 */ 758 s = splbio(); 759 760 /* 761 * If the device has been made invalid, error out 762 */ 763 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 764 splx(s); 765 bp->b_error = ENXIO; 766 goto bad; 767 } 768 769 /* 770 * Place it in the queue of disk activities for this disk 771 */ 772 bufqdisksort(&softc->buf_queue, bp); 773 774 splx(s); 775 776 /* 777 * Schedule ourselves for performing the work. 778 */ 779 xpt_schedule(periph, /* XXX priority */1); 780 781 return; 782 bad: 783 bp->b_flags |= B_ERROR; 784 785 /* 786 * Correctly set the buf to indicate a completed xfer 787 */ 788 bp->b_resid = bp->b_bcount; 789 biodone(bp); 790 return; 791 } 792 793 /* For 2.2-stable support */ 794 #ifndef ENOIOCTL 795 #define ENOIOCTL -1 796 #endif 797 798 static int 799 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 800 { 801 struct cam_periph *periph; 802 struct da_softc *softc; 803 int unit; 804 int error; 805 806 unit = dkunit(dev); 807 periph = cam_extend_get(daperiphs, unit); 808 if (periph == NULL) 809 return (ENXIO); 810 811 softc = (struct da_softc *)periph->softc; 812 813 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 814 815 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 816 return (error); /* error code from tsleep */ 817 } 818 819 error = cam_periph_ioctl(periph, cmd, addr, daerror); 820 821 cam_periph_unlock(periph); 822 823 return (error); 824 } 825 826 static int 827 dadump(dev_t dev, u_int num, u_int blknum, u_int secsize) 828 { 829 struct cam_periph *periph; 830 struct da_softc *softc; 831 u_int unit; 832 long blkcnt; 833 vm_paddr_t addr; 834 struct ccb_scsiio csio; 835 int dumppages = MAXDUMPPGS; 836 int i; 837 838 /* toss any characters present prior to dump */ 839 while (cncheckc() != -1) 840 ; 841 842 unit = dkunit(dev); 843 periph = cam_extend_get(daperiphs, unit); 844 if (periph == NULL) { 845 return (ENXIO); 846 } 847 softc = (struct da_softc *)periph->softc; 848 849 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 850 return (ENXIO); 851 852 addr = 0; /* starting address */ 853 blkcnt = howmany(PAGE_SIZE, secsize); 854 855 while (num > 0) { 856 caddr_t va = NULL; 857 858 if ((num / blkcnt) < dumppages) 859 dumppages = num / blkcnt; 860 861 for (i = 0; i < dumppages; ++i) { 862 vm_paddr_t a = addr + (i * PAGE_SIZE); 863 if (is_physical_memory(a)) 864 va = pmap_kenter_temporary(trunc_page(a), i); 865 else 866 va = pmap_kenter_temporary(trunc_page(0), i); 867 } 868 869 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 870 csio.ccb_h.ccb_state = DA_CCB_DUMP; 871 scsi_read_write(&csio, 872 /*retries*/1, 873 dadone, 874 MSG_ORDERED_Q_TAG, 875 /*read*/FALSE, 876 /*byte2*/0, 877 /*minimum_cmd_size*/ softc->minimum_cmd_size, 878 blknum, 879 blkcnt * dumppages, 880 /*data_ptr*/(u_int8_t *) va, 881 /*dxfer_len*/blkcnt * secsize * dumppages, 882 /*sense_len*/SSD_FULL_SIZE, 883 DA_DEFAULT_TIMEOUT * 1000); 884 xpt_polled_action((union ccb *)&csio); 885 886 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 887 printf("Aborting dump due to I/O error.\n"); 888 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 889 CAM_SCSI_STATUS_ERROR) 890 scsi_sense_print(&csio); 891 else 892 printf("status == 0x%x, scsi status == 0x%x\n", 893 csio.ccb_h.status, csio.scsi_status); 894 return(EIO); 895 } 896 897 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0) 898 return (EINTR); 899 900 /* update block count */ 901 num -= blkcnt * dumppages; 902 blknum += blkcnt * dumppages; 903 addr += PAGE_SIZE * dumppages; 904 } 905 906 /* 907 * Sync the disk cache contents to the physical media. 908 */ 909 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 910 911 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 912 csio.ccb_h.ccb_state = DA_CCB_DUMP; 913 scsi_synchronize_cache(&csio, 914 /*retries*/1, 915 /*cbfcnp*/dadone, 916 MSG_SIMPLE_Q_TAG, 917 /*begin_lba*/0,/* Cover the whole disk */ 918 /*lb_count*/0, 919 SSD_FULL_SIZE, 920 5 * 60 * 1000); 921 xpt_polled_action((union ccb *)&csio); 922 923 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 924 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 925 CAM_SCSI_STATUS_ERROR) { 926 int asc, ascq; 927 int sense_key, error_code; 928 929 scsi_extract_sense(&csio.sense_data, 930 &error_code, 931 &sense_key, 932 &asc, &ascq); 933 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 934 scsi_sense_print(&csio); 935 } else { 936 xpt_print_path(periph->path); 937 printf("Synchronize cache failed, status " 938 "== 0x%x, scsi status == 0x%x\n", 939 csio.ccb_h.status, csio.scsi_status); 940 } 941 } 942 } 943 return (0); 944 } 945 946 static void 947 dainit(void) 948 { 949 cam_status status; 950 struct cam_path *path; 951 952 /* 953 * Create our extend array for storing the devices we attach to. 954 */ 955 daperiphs = cam_extend_new(); 956 SLIST_INIT(&softc_list); 957 if (daperiphs == NULL) { 958 printf("da: Failed to alloc extend array!\n"); 959 return; 960 } 961 962 callout_init(&dasendorderedtag_ch); 963 964 /* 965 * Install a global async callback. This callback will 966 * receive async callbacks like "new device found". 967 */ 968 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 969 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 970 971 if (status == CAM_REQ_CMP) { 972 struct ccb_setasync csa; 973 974 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 975 csa.ccb_h.func_code = XPT_SASYNC_CB; 976 csa.event_enable = AC_FOUND_DEVICE; 977 csa.callback = daasync; 978 csa.callback_arg = NULL; 979 xpt_action((union ccb *)&csa); 980 status = csa.ccb_h.status; 981 xpt_free_path(path); 982 } 983 984 if (status != CAM_REQ_CMP) { 985 printf("da: Failed to attach master async callback " 986 "due to status 0x%x!\n", status); 987 } else { 988 989 /* 990 * Schedule a periodic event to occasionally send an 991 * ordered tag to a device. 992 */ 993 callout_reset(&dasendorderedtag_ch, 994 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 995 dasendorderedtag, NULL); 996 997 /* Register our shutdown event handler */ 998 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 999 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1000 printf("dainit: shutdown event registration failed!\n"); 1001 } 1002 } 1003 1004 static void 1005 daoninvalidate(struct cam_periph *periph) 1006 { 1007 int s; 1008 struct da_softc *softc; 1009 struct buf *q_bp; 1010 struct ccb_setasync csa; 1011 1012 softc = (struct da_softc *)periph->softc; 1013 1014 /* 1015 * De-register any async callbacks. 1016 */ 1017 xpt_setup_ccb(&csa.ccb_h, periph->path, 1018 /* priority */ 5); 1019 csa.ccb_h.func_code = XPT_SASYNC_CB; 1020 csa.event_enable = 0; 1021 csa.callback = daasync; 1022 csa.callback_arg = periph; 1023 xpt_action((union ccb *)&csa); 1024 1025 softc->flags |= DA_FLAG_PACK_INVALID; 1026 1027 /* 1028 * Although the oninvalidate() routines are always called at 1029 * splsoftcam, we need to be at splbio() here to keep the buffer 1030 * queue from being modified while we traverse it. 1031 */ 1032 s = splbio(); 1033 1034 /* 1035 * Return all queued I/O with ENXIO. 1036 * XXX Handle any transactions queued to the card 1037 * with XPT_ABORT_CCB. 1038 */ 1039 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 1040 bufq_remove(&softc->buf_queue, q_bp); 1041 q_bp->b_resid = q_bp->b_bcount; 1042 q_bp->b_error = ENXIO; 1043 q_bp->b_flags |= B_ERROR; 1044 biodone(q_bp); 1045 } 1046 splx(s); 1047 1048 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1049 1050 xpt_print_path(periph->path); 1051 printf("lost device\n"); 1052 } 1053 1054 static void 1055 dacleanup(struct cam_periph *periph) 1056 { 1057 struct da_softc *softc; 1058 1059 softc = (struct da_softc *)periph->softc; 1060 1061 devstat_remove_entry(&softc->device_stats); 1062 cam_extend_release(daperiphs, periph->unit_number); 1063 xpt_print_path(periph->path); 1064 printf("removing device entry\n"); 1065 /* 1066 * If we can't free the sysctl tree, oh well... 1067 */ 1068 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1069 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1070 xpt_print_path(periph->path); 1071 printf("can't remove sysctl context\n"); 1072 } 1073 if (softc->disk.d_rawdev) { 1074 disk_destroy(&softc->disk); 1075 } 1076 free(softc, M_DEVBUF); 1077 } 1078 1079 static void 1080 daasync(void *callback_arg, u_int32_t code, 1081 struct cam_path *path, void *arg) 1082 { 1083 struct cam_periph *periph; 1084 1085 periph = (struct cam_periph *)callback_arg; 1086 switch (code) { 1087 case AC_FOUND_DEVICE: 1088 { 1089 struct ccb_getdev *cgd; 1090 cam_status status; 1091 1092 cgd = (struct ccb_getdev *)arg; 1093 1094 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1095 && SID_TYPE(&cgd->inq_data) != T_RBC 1096 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1097 break; 1098 1099 /* 1100 * Allocate a peripheral instance for 1101 * this device and start the probe 1102 * process. 1103 */ 1104 status = cam_periph_alloc(daregister, daoninvalidate, 1105 dacleanup, dastart, 1106 "da", CAM_PERIPH_BIO, 1107 cgd->ccb_h.path, daasync, 1108 AC_FOUND_DEVICE, cgd); 1109 1110 if (status != CAM_REQ_CMP 1111 && status != CAM_REQ_INPROG) 1112 printf("daasync: Unable to attach to new device " 1113 "due to status 0x%x\n", status); 1114 break; 1115 } 1116 case AC_SENT_BDR: 1117 case AC_BUS_RESET: 1118 { 1119 struct da_softc *softc; 1120 struct ccb_hdr *ccbh; 1121 int s; 1122 1123 softc = (struct da_softc *)periph->softc; 1124 s = splsoftcam(); 1125 /* 1126 * Don't fail on the expected unit attention 1127 * that will occur. 1128 */ 1129 softc->flags |= DA_FLAG_RETRY_UA; 1130 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 1131 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 1132 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1133 splx(s); 1134 /* FALLTHROUGH*/ 1135 } 1136 default: 1137 cam_periph_async(periph, code, path, arg); 1138 break; 1139 } 1140 } 1141 1142 static void 1143 dasysctlinit(void *context, int pending) 1144 { 1145 struct cam_periph *periph; 1146 struct da_softc *softc; 1147 char tmpstr[80], tmpstr2[80]; 1148 1149 periph = (struct cam_periph *)context; 1150 softc = (struct da_softc *)periph->softc; 1151 1152 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1153 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1154 1155 sysctl_ctx_init(&softc->sysctl_ctx); 1156 softc->flags |= DA_FLAG_SCTX_INIT; 1157 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1158 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1159 CTLFLAG_RD, 0, tmpstr); 1160 if (softc->sysctl_tree == NULL) { 1161 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1162 return; 1163 } 1164 1165 /* 1166 * Now register the sysctl handler, so the user can the value on 1167 * the fly. 1168 */ 1169 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1170 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1171 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1172 "Minimum CDB size"); 1173 } 1174 1175 static int 1176 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1177 { 1178 int error, value; 1179 1180 value = *(int *)arg1; 1181 1182 error = sysctl_handle_int(oidp, &value, 0, req); 1183 1184 if ((error != 0) 1185 || (req->newptr == NULL)) 1186 return (error); 1187 1188 /* 1189 * Acceptable values here are 6, 10 or 12. It's possible we may 1190 * support a 16 byte minimum command size in the future, since 1191 * there are now READ(16) and WRITE(16) commands defined in the 1192 * SBC-2 spec. 1193 */ 1194 if (value < 6) 1195 value = 6; 1196 else if ((value > 6) 1197 && (value <= 10)) 1198 value = 10; 1199 else if (value > 10) 1200 value = 12; 1201 1202 *(int *)arg1 = value; 1203 1204 return (0); 1205 } 1206 1207 static cam_status 1208 daregister(struct cam_periph *periph, void *arg) 1209 { 1210 int s; 1211 struct da_softc *softc; 1212 struct ccb_setasync csa; 1213 struct ccb_pathinq cpi; 1214 struct ccb_getdev *cgd; 1215 char tmpstr[80]; 1216 caddr_t match; 1217 1218 cgd = (struct ccb_getdev *)arg; 1219 if (periph == NULL) { 1220 printf("daregister: periph was NULL!!\n"); 1221 return(CAM_REQ_CMP_ERR); 1222 } 1223 1224 if (cgd == NULL) { 1225 printf("daregister: no getdev CCB, can't register device\n"); 1226 return(CAM_REQ_CMP_ERR); 1227 } 1228 1229 softc = malloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 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 = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 1438 csio = &start_ccb->csio; 1439 scsi_read_capacity(csio, 1440 /*retries*/4, 1441 dadone, 1442 MSG_SIMPLE_Q_TAG, 1443 rcap, 1444 SSD_FULL_SIZE, 1445 /*timeout*/5000); 1446 start_ccb->ccb_h.ccb_bp = NULL; 1447 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE; 1448 xpt_action(start_ccb); 1449 break; 1450 } 1451 } 1452 } 1453 1454 static int 1455 cmd6workaround(union ccb *ccb) 1456 { 1457 struct scsi_rw_6 cmd6; 1458 struct scsi_rw_10 *cmd10; 1459 struct da_softc *softc; 1460 u_int8_t *cdb; 1461 int frozen; 1462 1463 cdb = ccb->csio.cdb_io.cdb_bytes; 1464 1465 /* Translation only possible if CDB is an array and cmd is R/W6 */ 1466 if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 || 1467 (*cdb != READ_6 && *cdb != WRITE_6)) 1468 return 0; 1469 1470 xpt_print_path(ccb->ccb_h.path); 1471 printf("READ(6)/WRITE(6) not supported, " 1472 "increasing minimum_cmd_size to 10.\n"); 1473 softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc; 1474 softc->minimum_cmd_size = 10; 1475 1476 bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6)); 1477 cmd10 = (struct scsi_rw_10 *)cdb; 1478 cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10; 1479 cmd10->byte2 = 0; 1480 scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr); 1481 cmd10->reserved = 0; 1482 scsi_ulto2b(cmd6.length, cmd10->length); 1483 cmd10->control = cmd6.control; 1484 ccb->csio.cdb_len = sizeof(*cmd10); 1485 1486 /* Requeue request, unfreezing queue if necessary */ 1487 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0; 1488 ccb->ccb_h.status = CAM_REQUEUE_REQ; 1489 xpt_action(ccb); 1490 if (frozen) { 1491 cam_release_devq(ccb->ccb_h.path, 1492 /*relsim_flags*/0, 1493 /*reduction*/0, 1494 /*timeout*/0, 1495 /*getcount_only*/0); 1496 } 1497 return (ERESTART); 1498 } 1499 1500 static void 1501 dadone(struct cam_periph *periph, union ccb *done_ccb) 1502 { 1503 struct da_softc *softc; 1504 struct ccb_scsiio *csio; 1505 1506 softc = (struct da_softc *)periph->softc; 1507 csio = &done_ccb->csio; 1508 switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) { 1509 case DA_CCB_BUFFER_IO: 1510 { 1511 struct buf *bp; 1512 int oldspl; 1513 1514 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1515 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1516 int error; 1517 int s; 1518 int sf; 1519 1520 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1521 sf = SF_RETRY_UA; 1522 else 1523 sf = 0; 1524 1525 /* Retry selection timeouts */ 1526 sf |= SF_RETRY_SELTO; 1527 1528 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) { 1529 /* 1530 * A retry was scheuled, so 1531 * just return. 1532 */ 1533 return; 1534 } 1535 if (error != 0) { 1536 struct buf *q_bp; 1537 1538 s = splbio(); 1539 1540 if (error == ENXIO) { 1541 /* 1542 * Catastrophic error. Mark our pack as 1543 * invalid. 1544 */ 1545 /* XXX See if this is really a media 1546 * change first. 1547 */ 1548 xpt_print_path(periph->path); 1549 printf("Invalidating pack\n"); 1550 softc->flags |= DA_FLAG_PACK_INVALID; 1551 } 1552 1553 /* 1554 * return all queued I/O with EIO, so that 1555 * the client can retry these I/Os in the 1556 * proper order should it attempt to recover. 1557 */ 1558 while ((q_bp = bufq_first(&softc->buf_queue)) 1559 != NULL) { 1560 bufq_remove(&softc->buf_queue, q_bp); 1561 q_bp->b_resid = q_bp->b_bcount; 1562 q_bp->b_error = EIO; 1563 q_bp->b_flags |= B_ERROR; 1564 biodone(q_bp); 1565 } 1566 splx(s); 1567 bp->b_error = error; 1568 bp->b_resid = bp->b_bcount; 1569 bp->b_flags |= B_ERROR; 1570 } else { 1571 bp->b_resid = csio->resid; 1572 bp->b_error = 0; 1573 if (bp->b_resid != 0) 1574 bp->b_flags |= B_ERROR; 1575 } 1576 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1577 cam_release_devq(done_ccb->ccb_h.path, 1578 /*relsim_flags*/0, 1579 /*reduction*/0, 1580 /*timeout*/0, 1581 /*getcount_only*/0); 1582 } else { 1583 bp->b_resid = csio->resid; 1584 if (csio->resid > 0) 1585 bp->b_flags |= B_ERROR; 1586 } 1587 1588 /* 1589 * Block out any asyncronous callbacks 1590 * while we touch the pending ccb list. 1591 */ 1592 oldspl = splcam(); 1593 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1594 splx(oldspl); 1595 1596 if (softc->device_stats.busy_count == 0) 1597 softc->flags |= DA_FLAG_WENT_IDLE; 1598 1599 devstat_end_transaction_buf(&softc->device_stats, bp); 1600 biodone(bp); 1601 break; 1602 } 1603 case DA_CCB_PROBE: 1604 { 1605 struct scsi_read_capacity_data *rdcap; 1606 char announce_buf[80]; 1607 1608 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1609 1610 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1611 struct disk_params *dp; 1612 1613 dasetgeom(periph, rdcap); 1614 dp = &softc->params; 1615 snprintf(announce_buf, sizeof(announce_buf), 1616 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1617 (unsigned long) (((u_int64_t)dp->secsize * 1618 dp->sectors) / (1024*1024)), dp->sectors, 1619 dp->secsize, dp->heads, dp->secs_per_track, 1620 dp->cylinders); 1621 } else { 1622 int error; 1623 1624 announce_buf[0] = '\0'; 1625 1626 /* 1627 * Retry any UNIT ATTENTION type errors. They 1628 * are expected at boot. 1629 */ 1630 error = daerror(done_ccb, 0, SF_RETRY_UA | 1631 SF_RETRY_SELTO | SF_NO_PRINT); 1632 if (error == ERESTART) { 1633 /* 1634 * A retry was scheuled, so 1635 * just return. 1636 */ 1637 return; 1638 } else if (error != 0) { 1639 struct scsi_sense_data *sense; 1640 int asc, ascq; 1641 int sense_key, error_code; 1642 int have_sense; 1643 cam_status status; 1644 struct ccb_getdev cgd; 1645 1646 /* Don't wedge this device's queue */ 1647 cam_release_devq(done_ccb->ccb_h.path, 1648 /*relsim_flags*/0, 1649 /*reduction*/0, 1650 /*timeout*/0, 1651 /*getcount_only*/0); 1652 1653 status = done_ccb->ccb_h.status; 1654 1655 xpt_setup_ccb(&cgd.ccb_h, 1656 done_ccb->ccb_h.path, 1657 /* priority */ 1); 1658 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1659 xpt_action((union ccb *)&cgd); 1660 1661 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1662 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1663 || ((status & CAM_AUTOSNS_VALID) == 0)) 1664 have_sense = FALSE; 1665 else 1666 have_sense = TRUE; 1667 1668 if (have_sense) { 1669 sense = &csio->sense_data; 1670 scsi_extract_sense(sense, &error_code, 1671 &sense_key, 1672 &asc, &ascq); 1673 } 1674 /* 1675 * Attach to anything that claims to be a 1676 * direct access or optical disk device, 1677 * as long as it doesn't return a "Logical 1678 * unit not supported" (0x25) error. 1679 */ 1680 if ((have_sense) && (asc != 0x25) 1681 && (error_code == SSD_CURRENT_ERROR)) 1682 snprintf(announce_buf, 1683 sizeof(announce_buf), 1684 "Attempt to query device " 1685 "size failed: %s, %s", 1686 scsi_sense_key_text[sense_key], 1687 scsi_sense_desc(asc,ascq, 1688 &cgd.inq_data)); 1689 else { 1690 if (have_sense) 1691 scsi_sense_print( 1692 &done_ccb->csio); 1693 else { 1694 xpt_print_path(periph->path); 1695 printf("got CAM status %#x\n", 1696 done_ccb->ccb_h.status); 1697 } 1698 1699 xpt_print_path(periph->path); 1700 printf("fatal error, failed" 1701 " to attach to device\n"); 1702 1703 /* 1704 * Free up resources. 1705 */ 1706 cam_periph_invalidate(periph); 1707 } 1708 } 1709 } 1710 free(rdcap, M_TEMP); 1711 if (announce_buf[0] != '\0') { 1712 xpt_announce_periph(periph, announce_buf); 1713 /* 1714 * Create our sysctl variables, now that we know 1715 * we have successfully attached. 1716 */ 1717 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1718 } 1719 softc->state = DA_STATE_NORMAL; 1720 /* 1721 * Since our peripheral may be invalidated by an error 1722 * above or an external event, we must release our CCB 1723 * before releasing the probe lock on the peripheral. 1724 * The peripheral will only go away once the last lock 1725 * is removed, and we need it around for the CCB release 1726 * operation. 1727 */ 1728 xpt_release_ccb(done_ccb); 1729 cam_periph_unlock(periph); 1730 return; 1731 } 1732 case DA_CCB_WAITING: 1733 { 1734 /* Caller will release the CCB */ 1735 wakeup(&done_ccb->ccb_h.cbfcnp); 1736 return; 1737 } 1738 case DA_CCB_DUMP: 1739 /* No-op. We're polling */ 1740 return; 1741 default: 1742 break; 1743 } 1744 xpt_release_ccb(done_ccb); 1745 } 1746 1747 static int 1748 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1749 { 1750 struct da_softc *softc; 1751 struct cam_periph *periph; 1752 int error; 1753 1754 periph = xpt_path_periph(ccb->ccb_h.path); 1755 softc = (struct da_softc *)periph->softc; 1756 1757 /* 1758 * Automatically detect devices that do not support 1759 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1760 */ 1761 error = 0; 1762 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1763 error = cmd6workaround(ccb); 1764 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1765 CAM_SCSI_STATUS_ERROR) 1766 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1767 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1768 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1769 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1770 int sense_key, error_code, asc, ascq; 1771 1772 scsi_extract_sense(&ccb->csio.sense_data, 1773 &error_code, &sense_key, &asc, &ascq); 1774 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1775 error = cmd6workaround(ccb); 1776 } 1777 if (error == ERESTART) 1778 return (ERESTART); 1779 1780 /* 1781 * XXX 1782 * Until we have a better way of doing pack validation, 1783 * don't treat UAs as errors. 1784 */ 1785 sense_flags |= SF_RETRY_UA; 1786 return(cam_periph_error(ccb, cam_flags, sense_flags, 1787 &softc->saved_ccb)); 1788 } 1789 1790 static void 1791 daprevent(struct cam_periph *periph, int action) 1792 { 1793 struct da_softc *softc; 1794 union ccb *ccb; 1795 int error; 1796 1797 softc = (struct da_softc *)periph->softc; 1798 1799 if (((action == PR_ALLOW) 1800 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1801 || ((action == PR_PREVENT) 1802 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1803 return; 1804 } 1805 1806 ccb = cam_periph_getccb(periph, /*priority*/1); 1807 1808 scsi_prevent(&ccb->csio, 1809 /*retries*/1, 1810 /*cbcfp*/dadone, 1811 MSG_SIMPLE_Q_TAG, 1812 action, 1813 SSD_FULL_SIZE, 1814 5000); 1815 1816 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 1817 /*sense_flags*/0, &softc->device_stats); 1818 1819 if (error == 0) { 1820 if (action == PR_ALLOW) 1821 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1822 else 1823 softc->flags |= DA_FLAG_PACK_LOCKED; 1824 } 1825 1826 xpt_release_ccb(ccb); 1827 } 1828 1829 static void 1830 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap) 1831 { 1832 struct ccb_calc_geometry ccg; 1833 struct da_softc *softc; 1834 struct disk_params *dp; 1835 1836 softc = (struct da_softc *)periph->softc; 1837 1838 dp = &softc->params; 1839 dp->secsize = scsi_4btoul(rdcap->length); 1840 dp->sectors = scsi_4btoul(rdcap->addr) + 1; 1841 /* 1842 * Have the controller provide us with a geometry 1843 * for this disk. The only time the geometry 1844 * matters is when we boot and the controller 1845 * is the only one knowledgeable enough to come 1846 * up with something that will make this a bootable 1847 * device. 1848 */ 1849 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1850 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1851 ccg.block_size = dp->secsize; 1852 ccg.volume_size = dp->sectors; 1853 ccg.heads = 0; 1854 ccg.secs_per_track = 0; 1855 ccg.cylinders = 0; 1856 xpt_action((union ccb*)&ccg); 1857 dp->heads = ccg.heads; 1858 dp->secs_per_track = ccg.secs_per_track; 1859 dp->cylinders = ccg.cylinders; 1860 } 1861 1862 static void 1863 dasendorderedtag(void *arg) 1864 { 1865 struct da_softc *softc; 1866 int s; 1867 1868 for (softc = SLIST_FIRST(&softc_list); 1869 softc != NULL; 1870 softc = SLIST_NEXT(softc, links)) { 1871 s = splsoftcam(); 1872 if ((softc->ordered_tag_count == 0) 1873 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1874 softc->flags |= DA_FLAG_NEED_OTAG; 1875 } 1876 if (softc->device_stats.busy_count > 0) 1877 softc->flags &= ~DA_FLAG_WENT_IDLE; 1878 1879 softc->ordered_tag_count = 0; 1880 splx(s); 1881 } 1882 /* Queue us up again */ 1883 callout_reset(&dasendorderedtag_ch, 1884 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL, 1885 dasendorderedtag, NULL); 1886 } 1887 1888 /* 1889 * Step through all DA peripheral drivers, and if the device is still open, 1890 * sync the disk cache to physical media. 1891 */ 1892 static void 1893 dashutdown(void * arg, int howto) 1894 { 1895 struct cam_periph *periph; 1896 struct da_softc *softc; 1897 1898 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL; 1899 periph = TAILQ_NEXT(periph, unit_links)) { 1900 union ccb ccb; 1901 softc = (struct da_softc *)periph->softc; 1902 1903 /* 1904 * We only sync the cache if the drive is still open, and 1905 * if the drive is capable of it.. 1906 */ 1907 if (((softc->flags & DA_FLAG_OPEN) == 0) 1908 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1909 continue; 1910 1911 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1912 1913 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1914 scsi_synchronize_cache(&ccb.csio, 1915 /*retries*/1, 1916 /*cbfcnp*/dadone, 1917 MSG_SIMPLE_Q_TAG, 1918 /*begin_lba*/0, /* whole disk */ 1919 /*lb_count*/0, 1920 SSD_FULL_SIZE, 1921 5 * 60 * 1000); 1922 1923 xpt_polled_action(&ccb); 1924 1925 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1926 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1927 CAM_SCSI_STATUS_ERROR) 1928 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1929 int error_code, sense_key, asc, ascq; 1930 1931 scsi_extract_sense(&ccb.csio.sense_data, 1932 &error_code, &sense_key, 1933 &asc, &ascq); 1934 1935 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1936 scsi_sense_print(&ccb.csio); 1937 } else { 1938 xpt_print_path(periph->path); 1939 printf("Synchronize cache failed, status " 1940 "== 0x%x, scsi status == 0x%x\n", 1941 ccb.ccb_h.status, ccb.csio.scsi_status); 1942 } 1943 } 1944 1945 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1946 cam_release_devq(ccb.ccb_h.path, 1947 /*relsim_flags*/0, 1948 /*reduction*/0, 1949 /*timeout*/0, 1950 /*getcount_only*/0); 1951 1952 } 1953 } 1954 1955 #else /* !_KERNEL */ 1956 1957 /* 1958 * XXX This is only left out of the kernel build to silence warnings. If, 1959 * for some reason this function is used in the kernel, the ifdefs should 1960 * be moved so it is included both in the kernel and userland. 1961 */ 1962 void 1963 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1964 void (*cbfcnp)(struct cam_periph *, union ccb *), 1965 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1966 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1967 u_int32_t timeout) 1968 { 1969 struct scsi_format_unit *scsi_cmd; 1970 1971 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1972 scsi_cmd->opcode = FORMAT_UNIT; 1973 scsi_cmd->byte2 = byte2; 1974 scsi_ulto2b(ileave, scsi_cmd->interleave); 1975 1976 cam_fill_csio(csio, 1977 retries, 1978 cbfcnp, 1979 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1980 tag_action, 1981 data_ptr, 1982 dxfer_len, 1983 sense_len, 1984 sizeof(*scsi_cmd), 1985 timeout); 1986 } 1987 1988 #endif /* _KERNEL */ 1989