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 1.24 2005/06/02 21:12:45 dillon Exp $ 30 */ 31 32 #ifdef _KERNEL 33 #include "opt_hw_wdog.h" 34 #endif /* _KERNEL */ 35 36 #include <sys/param.h> 37 #include <sys/bootmaj.h> 38 39 #ifdef _KERNEL 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/buf.h> 43 #include <sys/sysctl.h> 44 #include <sys/taskqueue.h> 45 #endif /* _KERNEL */ 46 47 #include <sys/devicestat.h> 48 #include <sys/conf.h> 49 #ifdef _KERNEL 50 #include <sys/disk.h> 51 #include <sys/eventhandler.h> 52 #include <sys/malloc.h> 53 #include <sys/cons.h> 54 #include <sys/proc.h> 55 #endif 56 #include <sys/buf2.h> 57 #ifdef _KERNEL 58 #include <sys/thread2.h> 59 #endif 60 61 #include <machine/md_var.h> 62 63 #ifdef _KERNEL 64 #include <vm/vm.h> 65 #include <vm/pmap.h> 66 #endif 67 68 #ifndef _KERNEL 69 #include <stdio.h> 70 #include <string.h> 71 #endif /* _KERNEL */ 72 73 #include "../cam.h" 74 #include "../cam_ccb.h" 75 #include "../cam_extend.h" 76 #include "../cam_periph.h" 77 #include "../cam_xpt_periph.h" 78 79 #include "scsi_message.h" 80 81 #ifndef _KERNEL 82 #include "scsi_da.h" 83 #endif /* !_KERNEL */ 84 85 #ifdef _KERNEL 86 typedef enum { 87 DA_STATE_PROBE, 88 DA_STATE_NORMAL 89 } da_state; 90 91 typedef enum { 92 DA_FLAG_PACK_INVALID = 0x001, 93 DA_FLAG_NEW_PACK = 0x002, 94 DA_FLAG_PACK_LOCKED = 0x004, 95 DA_FLAG_PACK_REMOVABLE = 0x008, 96 DA_FLAG_TAGGED_QUEUING = 0x010, 97 DA_FLAG_NEED_OTAG = 0x020, 98 DA_FLAG_WENT_IDLE = 0x040, 99 DA_FLAG_RETRY_UA = 0x080, 100 DA_FLAG_OPEN = 0x100, 101 DA_FLAG_SCTX_INIT = 0x200 102 } da_flags; 103 104 typedef enum { 105 DA_Q_NONE = 0x00, 106 DA_Q_NO_SYNC_CACHE = 0x01, 107 DA_Q_NO_6_BYTE = 0x02, 108 DA_Q_NO_PREVENT = 0x04 109 } da_quirks; 110 111 typedef enum { 112 DA_CCB_PROBE = 0x01, 113 DA_CCB_BUFFER_IO = 0x02, 114 DA_CCB_WAITING = 0x03, 115 DA_CCB_DUMP = 0x04, 116 DA_CCB_TYPE_MASK = 0x0F, 117 DA_CCB_RETRY_UA = 0x10 118 } da_ccb_state; 119 120 /* Offsets into our private area for storing information */ 121 #define ccb_state ppriv_field0 122 #define ccb_bp ppriv_ptr1 123 124 struct disk_params { 125 u_int8_t heads; 126 u_int16_t cylinders; 127 u_int8_t secs_per_track; 128 u_int32_t secsize; /* Number of bytes/sector */ 129 u_int32_t sectors; /* total number sectors */ 130 }; 131 132 struct da_softc { 133 struct buf_queue_head buf_queue; 134 struct devstat device_stats; 135 SLIST_ENTRY(da_softc) links; 136 LIST_HEAD(, ccb_hdr) pending_ccbs; 137 da_state state; 138 da_flags flags; 139 da_quirks quirks; 140 int minimum_cmd_size; 141 int ordered_tag_count; 142 struct disk_params params; 143 struct disk disk; 144 union ccb saved_ccb; 145 struct task sysctl_task; 146 struct sysctl_ctx_list sysctl_ctx; 147 struct sysctl_oid *sysctl_tree; 148 }; 149 150 struct da_quirk_entry { 151 struct scsi_inquiry_pattern inq_pat; 152 da_quirks quirks; 153 }; 154 155 static const char quantum[] = "QUANTUM"; 156 static const char microp[] = "MICROP"; 157 158 static struct da_quirk_entry da_quirk_table[] = 159 { 160 /* SPI, FC devices */ 161 { 162 /* 163 * Fujitsu M2513A MO drives. 164 * Tested devices: M2513A2 firmware versions 1200 & 1300. 165 * (dip switch selects whether T_DIRECT or T_OPTICAL device) 166 * Reported by: W.Scholten <whs@xs4all.nl> 167 */ 168 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 169 /*quirks*/ DA_Q_NO_SYNC_CACHE 170 }, 171 { 172 /* See above. */ 173 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"}, 174 /*quirks*/ DA_Q_NO_SYNC_CACHE 175 }, 176 { 177 /* 178 * This particular Fujitsu drive doesn't like the 179 * synchronize cache command. 180 * Reported by: Tom Jackson <toj@gorilla.net> 181 */ 182 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"}, 183 /*quirks*/ DA_Q_NO_SYNC_CACHE 184 185 }, 186 { 187 /* 188 * This drive doesn't like the synchronize cache command 189 * either. Reported by: Matthew Jacob <mjacob@feral.com> 190 * in NetBSD PR kern/6027, August 24, 1998. 191 */ 192 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"}, 193 /*quirks*/ DA_Q_NO_SYNC_CACHE 194 }, 195 { 196 /* 197 * This drive doesn't like the synchronize cache command 198 * either. Reported by: Hellmuth Michaelis (hm@kts.org) 199 * (PR 8882). 200 */ 201 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"}, 202 /*quirks*/ DA_Q_NO_SYNC_CACHE 203 }, 204 { 205 /* 206 * Doesn't like the synchronize cache command. 207 * Reported by: Blaz Zupan <blaz@gold.amis.net> 208 */ 209 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"}, 210 /*quirks*/ DA_Q_NO_SYNC_CACHE 211 }, 212 { 213 /* 214 * Doesn't like the synchronize cache command. 215 */ 216 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"}, 217 /*quirks*/ DA_Q_NO_SYNC_CACHE 218 }, 219 { 220 /* 221 * Doesn't like the synchronize cache command. 222 */ 223 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"}, 224 /*quirks*/ DA_Q_NO_SYNC_CACHE 225 }, 226 { 227 /* 228 * Doesn't work correctly with 6 byte reads/writes. 229 * Returns illegal request, and points to byte 9 of the 230 * 6-byte CDB. 231 * Reported by: Adam McDougall <bsdx@spawnet.com> 232 */ 233 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"}, 234 /*quirks*/ DA_Q_NO_6_BYTE 235 }, 236 { 237 /* See above. */ 238 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"}, 239 /*quirks*/ DA_Q_NO_6_BYTE 240 }, 241 /* XXX USB floppy quirks temporarily enabled for 4.9R */ 242 /* USB floppy devices supported by umass(4) */ 243 { 244 /* 245 * This USB floppy drive uses the UFI command set. This 246 * command set is a derivative of the ATAPI command set and 247 * does not support READ_6 commands only READ_10. It also does 248 * not support sync cache (0x35). 249 */ 250 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Y-E DATA", "USB-FDU", "*"}, 251 /*quirks*/ DA_Q_NO_SYNC_CACHE 252 }, 253 { 254 /* Another USB floppy */ 255 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MATSHITA", "FDD CF-VFDU*","*"}, 256 /*quirks*/ DA_Q_NO_SYNC_CACHE 257 }, 258 { 259 /* 260 * The vendor, product and version strings coming from the 261 * controller are null terminated instead of being padded with 262 * spaces. The trailing wildcard character '*' is required. 263 */ 264 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SMSC*", "USB FDC*","*"}, 265 /*quirks*/ DA_Q_NO_SYNC_CACHE 266 }, 267 { 268 /* 269 * SmartDisk (Mitsumi) USB floppy drive 270 * PR: kern/50226 271 */ 272 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MITSUMI", "USB FDD", "*"}, 273 /*quirks*/ DA_Q_NO_SYNC_CACHE 274 }, 275 { 276 /* 277 * The CISS RAID controllers do not support SYNC_CACHE 278 */ 279 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"}, 280 /*quirks*/ DA_Q_NO_SYNC_CACHE 281 }, 282 #ifdef DA_OLD_QUIRKS 283 /* USB mass storage devices supported by umass(4) */ 284 { 285 /* 286 * Sony Memory Stick adapter MSAC-US1 and 287 * Sony PCG-C1VJ Internal Memory Stick Slot (MSC-U01). 288 * Make all sony MS* products use this quirk. 289 */ 290 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "MS*", "*"}, 291 /*quirks*/ DA_Q_NO_SYNC_CACHE 292 }, 293 { 294 /* 295 * Sony Memory Stick adapter for the CLIE series 296 * of PalmOS PDA's 297 */ 298 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "CLIE*", "*"}, 299 /*quirks*/ DA_Q_NO_SYNC_CACHE 300 }, 301 { 302 /* 303 * Intelligent Stick USB disk-on-key 304 * PR: kern/53005 305 */ 306 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB Card", 307 "IntelligentStick*", "*"}, 308 /*quirks*/ DA_Q_NO_SYNC_CACHE 309 }, 310 { 311 /* 312 * Sony DSC cameras (DSC-S30, DSC-S50, DSC-S70) 313 */ 314 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"}, 315 /*quirks*/ DA_Q_NO_SYNC_CACHE 316 }, 317 { 318 /* 319 * Microtech USB CameraMate 320 */ 321 {T_DIRECT, SIP_MEDIA_REMOVABLE, "eUSB Compact*", 322 "Compact Flash*", "*"}, 323 /*quirks*/ DA_Q_NO_SYNC_CACHE 324 }, 325 { 326 /* 327 * Olympus digital cameras (C-3040ZOOM, C-2040ZOOM, C-1) 328 */ 329 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "C-*", "*"}, 330 /*quirks*/ DA_Q_NO_SYNC_CACHE 331 }, 332 { 333 /* 334 * Olympus digital cameras (E-100RS, E-10). 335 */ 336 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "E-*", "*"}, 337 /*quirks*/ DA_Q_NO_SYNC_CACHE 338 }, 339 { 340 /* 341 * KingByte Pen Drives 342 */ 343 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NO BRAND", "PEN DRIVE", "*"}, 344 /*quirks*/ DA_Q_NO_SYNC_CACHE 345 }, 346 { 347 /* 348 * iRiver iFP MP3 player (with UMS Firmware) 349 * PR: kern/54881, i386/63941, kern/66124 350 */ 351 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"}, 352 /*quirks*/ DA_Q_NO_SYNC_CACHE 353 }, 354 { 355 /* 356 * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01 357 * PR: kern/70158 358 */ 359 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "NexIA+*", "*"}, 360 /*quirks*/ DA_Q_NO_SYNC_CACHE 361 }, 362 { 363 /* 364 * FujiFilm Camera 365 */ 366 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJIFILMUSB-DRIVEUNIT", 367 "USB-DRIVEUNIT", "*"}, 368 /*quirks*/ DA_Q_NO_SYNC_CACHE 369 }, 370 { 371 /* 372 * Minolta Dimage E203 373 */ 374 {T_DIRECT, SIP_MEDIA_REMOVABLE, "MINOLTA", "DiMAGE E203", "*"}, 375 /*quirks*/ DA_Q_NO_SYNC_CACHE 376 }, 377 { 378 /* 379 * Apacer HandyDrive 380 * PR: kern/43627 381 */ 382 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Apacer", "HandyDrive", "*"}, 383 /*quirks*/ DA_Q_NO_SYNC_CACHE 384 }, 385 { 386 /* 387 * Daisy Technology PhotoClip on Zoran chip 388 * PR: kern/43580 389 */ 390 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ZORAN", "COACH", "*"}, 391 /*quirks*/ DA_Q_NO_SYNC_CACHE 392 }, 393 { 394 /* 395 * Sony USB Key-Storage 396 * PR: kern/46386 397 */ 398 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Storage Media", "*"}, 399 /*quirks*/ DA_Q_NO_SYNC_CACHE 400 }, 401 #endif /* DA_OLD_QUIRKS */ 402 { 403 /* 404 * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player 405 * PR: kern/51675 406 */ 407 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"}, 408 /*quirks*/ DA_Q_NO_SYNC_CACHE 409 }, 410 { 411 /* 412 * Jungsoft NEXDISK USB flash key 413 * PR: kern/54737 414 */ 415 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"}, 416 /*quirks*/ DA_Q_NO_SYNC_CACHE 417 }, 418 { 419 /* 420 * Creative Nomad MUVO mp3 player (USB) 421 * PR: kern/53094 422 */ 423 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"}, 424 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT 425 }, 426 }; 427 428 static d_open_t daopen; 429 static d_close_t daclose; 430 static d_strategy_t dastrategy; 431 static d_ioctl_t daioctl; 432 static d_dump_t dadump; 433 static periph_init_t dainit; 434 static void daasync(void *callback_arg, u_int32_t code, 435 struct cam_path *path, void *arg); 436 static int dacmdsizesysctl(SYSCTL_HANDLER_ARGS); 437 static periph_ctor_t daregister; 438 static periph_dtor_t dacleanup; 439 static periph_start_t dastart; 440 static periph_oninv_t daoninvalidate; 441 static void dadone(struct cam_periph *periph, 442 union ccb *done_ccb); 443 static int daerror(union ccb *ccb, u_int32_t cam_flags, 444 u_int32_t sense_flags); 445 static void daprevent(struct cam_periph *periph, int action); 446 static void dasetgeom(struct cam_periph *periph, 447 struct scsi_read_capacity_data * rdcap); 448 static timeout_t dasendorderedtag; 449 static void dashutdown(void *arg, int howto); 450 451 #ifndef DA_DEFAULT_TIMEOUT 452 #define DA_DEFAULT_TIMEOUT 60 /* Timeout in seconds */ 453 #endif 454 455 #ifndef DA_DEFAULT_RETRY 456 #define DA_DEFAULT_RETRY 4 457 #endif 458 459 static int da_retry_count = DA_DEFAULT_RETRY; 460 static int da_default_timeout = DA_DEFAULT_TIMEOUT; 461 static struct callout dasendorderedtag_ch; 462 463 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0, 464 "CAM Direct Access Disk driver"); 465 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW, 466 &da_retry_count, 0, "Normal I/O retry count"); 467 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count); 468 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW, 469 &da_default_timeout, 0, "Normal I/O timeout (in seconds)"); 470 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout); 471 472 /* 473 * DA_ORDEREDTAG_INTERVAL determines how often, relative 474 * to the default timeout, we check to see whether an ordered 475 * tagged transaction is appropriate to prevent simple tag 476 * starvation. Since we'd like to ensure that there is at least 477 * 1/2 of the timeout length left for a starved transaction to 478 * complete after we've sent an ordered tag, we must poll at least 479 * four times in every timeout period. This takes care of the worst 480 * case where a starved transaction starts during an interval that 481 * meets the requirement "don't send an ordered tag" test so it takes 482 * us two intervals to determine that a tag must be sent. 483 */ 484 #ifndef DA_ORDEREDTAG_INTERVAL 485 #define DA_ORDEREDTAG_INTERVAL 4 486 #endif 487 488 static struct periph_driver dadriver = 489 { 490 dainit, "da", 491 TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0 492 }; 493 494 DATA_SET(periphdriver_set, dadriver); 495 496 /* For 2.2-stable support */ 497 #ifndef D_DISK 498 #define D_DISK 0 499 #endif 500 501 static struct cdevsw da_cdevsw = { 502 /* name */ "da", 503 /* maj */ DA_CDEV_MAJOR, 504 /* flags */ D_DISK, 505 /* port */ NULL, 506 /* clone */ NULL, 507 508 /* open */ daopen, 509 /* close */ daclose, 510 /* read */ physread, 511 /* write */ physwrite, 512 /* ioctl */ daioctl, 513 /* poll */ nopoll, 514 /* mmap */ nommap, 515 /* strategy */ dastrategy, 516 /* dump */ dadump, 517 /* psize */ nopsize 518 }; 519 520 static SLIST_HEAD(,da_softc) softc_list; 521 static struct extend_array *daperiphs; 522 523 static int 524 daopen(dev_t dev, int flags, int fmt, struct thread *td) 525 { 526 struct cam_periph *periph; 527 struct da_softc *softc; 528 struct disklabel *label; 529 int unit; 530 int part; 531 int error; 532 533 unit = dkunit(dev); 534 part = dkpart(dev); 535 periph = cam_extend_get(daperiphs, unit); 536 if (periph == NULL) 537 return (ENXIO); 538 539 softc = (struct da_softc *)periph->softc; 540 541 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 542 ("daopen: dev=%s (unit %d , partition %d)\n", devtoname(dev), 543 unit, part)); 544 545 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 546 return (error); /* error code from tsleep */ 547 } 548 549 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 550 return(ENXIO); 551 softc->flags |= DA_FLAG_OPEN; 552 553 crit_enter(); 554 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) { 555 /* Invalidate our pack information. */ 556 disk_invalidate(&softc->disk); 557 softc->flags &= ~DA_FLAG_PACK_INVALID; 558 } 559 crit_exit(); 560 561 /* Do a read capacity */ 562 { 563 struct scsi_read_capacity_data *rcap; 564 union ccb *ccb; 565 566 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT | M_ZERO); 567 568 ccb = cam_periph_getccb(periph, /*priority*/1); 569 scsi_read_capacity(&ccb->csio, 570 /*retries*/1, 571 /*cbfncp*/dadone, 572 MSG_SIMPLE_Q_TAG, 573 rcap, 574 SSD_FULL_SIZE, 575 /*timeout*/60000); 576 ccb->ccb_h.ccb_bp = NULL; 577 578 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0, 579 /*sense_flags*/SF_RETRY_UA | 580 SF_RETRY_SELTO, 581 &softc->device_stats); 582 583 xpt_release_ccb(ccb); 584 585 if (error == 0) { 586 dasetgeom(periph, rcap); 587 } 588 589 free(rcap, M_TEMP); 590 } 591 592 if (error == 0) { 593 struct ccb_getdev cgd; 594 595 /* Build label for whole disk. */ 596 label = &softc->disk.d_label; 597 bzero(label, sizeof(*label)); 598 label->d_type = DTYPE_SCSI; 599 600 /* 601 * Grab the inquiry data to get the vendor and product names. 602 * Put them in the typename and packname for the label. 603 */ 604 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1); 605 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 606 xpt_action((union ccb *)&cgd); 607 608 strncpy(label->d_typename, cgd.inq_data.vendor, 609 min(SID_VENDOR_SIZE, sizeof(label->d_typename))); 610 strncpy(label->d_packname, cgd.inq_data.product, 611 min(SID_PRODUCT_SIZE, sizeof(label->d_packname))); 612 613 label->d_secsize = softc->params.secsize; 614 label->d_nsectors = softc->params.secs_per_track; 615 label->d_ntracks = softc->params.heads; 616 label->d_ncylinders = softc->params.cylinders; 617 label->d_secpercyl = softc->params.heads 618 * softc->params.secs_per_track; 619 label->d_secperunit = softc->params.sectors; 620 621 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 622 (softc->quirks & DA_Q_NO_PREVENT) == 0) 623 daprevent(periph, PR_PREVENT); 624 625 /* 626 * Check to see whether or not the blocksize is set yet. 627 * If it isn't, set it and then clear the blocksize 628 * unavailable flag for the device statistics. 629 */ 630 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0){ 631 softc->device_stats.block_size = softc->params.secsize; 632 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE; 633 } 634 } 635 636 if (error != 0) { 637 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 && 638 (softc->quirks & DA_Q_NO_PREVENT) == 0) 639 daprevent(periph, PR_ALLOW); 640 softc->flags &= ~DA_FLAG_OPEN; 641 cam_periph_release(periph); 642 } 643 cam_periph_unlock(periph); 644 return (error); 645 } 646 647 static int 648 daclose(dev_t dev, int flag, int fmt, struct thread *td) 649 { 650 struct cam_periph *periph; 651 struct da_softc *softc; 652 int unit; 653 int error; 654 655 unit = dkunit(dev); 656 periph = cam_extend_get(daperiphs, unit); 657 if (periph == NULL) 658 return (ENXIO); 659 660 softc = (struct da_softc *)periph->softc; 661 662 if ((error = cam_periph_lock(periph, 0)) != 0) { 663 return (error); /* error code from tsleep */ 664 } 665 666 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 667 union ccb *ccb; 668 669 ccb = cam_periph_getccb(periph, /*priority*/1); 670 671 scsi_synchronize_cache(&ccb->csio, 672 /*retries*/1, 673 /*cbfcnp*/dadone, 674 MSG_SIMPLE_Q_TAG, 675 /*begin_lba*/0,/* Cover the whole disk */ 676 /*lb_count*/0, 677 SSD_FULL_SIZE, 678 5 * 60 * 1000); 679 680 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 681 /*sense_flags*/SF_RETRY_UA, 682 &softc->device_stats); 683 684 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 685 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == 686 CAM_SCSI_STATUS_ERROR) { 687 int asc, ascq; 688 int sense_key, error_code; 689 690 scsi_extract_sense(&ccb->csio.sense_data, 691 &error_code, 692 &sense_key, 693 &asc, &ascq); 694 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 695 scsi_sense_print(&ccb->csio); 696 } else { 697 xpt_print_path(periph->path); 698 printf("Synchronize cache failed, status " 699 "== 0x%x, scsi status == 0x%x\n", 700 ccb->csio.ccb_h.status, 701 ccb->csio.scsi_status); 702 } 703 } 704 705 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 706 cam_release_devq(ccb->ccb_h.path, 707 /*relsim_flags*/0, 708 /*reduction*/0, 709 /*timeout*/0, 710 /*getcount_only*/0); 711 712 xpt_release_ccb(ccb); 713 714 } 715 716 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) { 717 if ((softc->quirks & DA_Q_NO_PREVENT) == 0) 718 daprevent(periph, PR_ALLOW); 719 /* 720 * If we've got removeable media, mark the blocksize as 721 * unavailable, since it could change when new media is 722 * inserted. 723 */ 724 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE; 725 } 726 727 softc->flags &= ~DA_FLAG_OPEN; 728 cam_periph_unlock(periph); 729 cam_periph_release(periph); 730 return (0); 731 } 732 733 /* 734 * Actually translate the requested transfer into one the physical driver 735 * can understand. The transfer is described by a buf and will include 736 * only one physical transfer. 737 */ 738 static void 739 dastrategy(struct buf *bp) 740 { 741 struct cam_periph *periph; 742 struct da_softc *softc; 743 u_int unit; 744 u_int part; 745 746 unit = dkunit(bp->b_dev); 747 part = dkpart(bp->b_dev); 748 periph = cam_extend_get(daperiphs, unit); 749 if (periph == NULL) { 750 bp->b_error = ENXIO; 751 goto bad; 752 } 753 softc = (struct da_softc *)periph->softc; 754 #if 0 755 /* 756 * check it's not too big a transfer for our adapter 757 */ 758 scsi_minphys(bp,&sd_switch); 759 #endif 760 761 /* 762 * Mask interrupts so that the pack cannot be invalidated until 763 * after we are in the queue. Otherwise, we might not properly 764 * clean up one of the buffers. 765 */ 766 crit_enter(); 767 768 /* 769 * If the device has been made invalid, error out 770 */ 771 if ((softc->flags & DA_FLAG_PACK_INVALID)) { 772 crit_exit(); 773 bp->b_error = ENXIO; 774 goto bad; 775 } 776 777 /* 778 * Place it in the queue of disk activities for this disk 779 */ 780 bufqdisksort(&softc->buf_queue, bp); 781 782 crit_exit(); 783 784 /* 785 * Schedule ourselves for performing the work. 786 */ 787 xpt_schedule(periph, /* XXX priority */1); 788 789 return; 790 bad: 791 bp->b_flags |= B_ERROR; 792 793 /* 794 * Correctly set the buf to indicate a completed xfer 795 */ 796 bp->b_resid = bp->b_bcount; 797 biodone(bp); 798 return; 799 } 800 801 /* For 2.2-stable support */ 802 #ifndef ENOIOCTL 803 #define ENOIOCTL -1 804 #endif 805 806 static int 807 daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 808 { 809 struct cam_periph *periph; 810 struct da_softc *softc; 811 int unit; 812 int error; 813 814 unit = dkunit(dev); 815 periph = cam_extend_get(daperiphs, unit); 816 if (periph == NULL) 817 return (ENXIO); 818 819 softc = (struct da_softc *)periph->softc; 820 821 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("daioctl\n")); 822 823 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 824 return (error); /* error code from tsleep */ 825 } 826 827 error = cam_periph_ioctl(periph, cmd, addr, daerror); 828 829 cam_periph_unlock(periph); 830 831 return (error); 832 } 833 834 static int 835 dadump(dev_t dev, u_int num, u_int blknum, u_int secsize) 836 { 837 struct cam_periph *periph; 838 struct da_softc *softc; 839 u_int unit; 840 long blkcnt; 841 vm_paddr_t addr; 842 struct ccb_scsiio csio; 843 int dumppages = MAXDUMPPGS; 844 int i; 845 846 /* toss any characters present prior to dump */ 847 while (cncheckc() != -1) 848 ; 849 850 unit = dkunit(dev); 851 periph = cam_extend_get(daperiphs, unit); 852 if (periph == NULL) { 853 return (ENXIO); 854 } 855 softc = (struct da_softc *)periph->softc; 856 857 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) 858 return (ENXIO); 859 860 addr = 0; /* starting address */ 861 blkcnt = howmany(PAGE_SIZE, secsize); 862 863 while (num > 0) { 864 caddr_t va = NULL; 865 866 if ((num / blkcnt) < dumppages) 867 dumppages = num / blkcnt; 868 869 for (i = 0; i < dumppages; ++i) { 870 vm_paddr_t a = addr + (i * PAGE_SIZE); 871 if (is_physical_memory(a)) 872 va = pmap_kenter_temporary(trunc_page(a), i); 873 else 874 va = pmap_kenter_temporary(trunc_page(0), i); 875 } 876 877 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 878 csio.ccb_h.ccb_state = DA_CCB_DUMP; 879 scsi_read_write(&csio, 880 /*retries*/1, 881 dadone, 882 MSG_ORDERED_Q_TAG, 883 /*read*/FALSE, 884 /*byte2*/0, 885 /*minimum_cmd_size*/ softc->minimum_cmd_size, 886 blknum, 887 blkcnt * dumppages, 888 /*data_ptr*/(u_int8_t *) va, 889 /*dxfer_len*/blkcnt * secsize * dumppages, 890 /*sense_len*/SSD_FULL_SIZE, 891 DA_DEFAULT_TIMEOUT * 1000); 892 xpt_polled_action((union ccb *)&csio); 893 894 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 895 printf("Aborting dump due to I/O error.\n"); 896 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 897 CAM_SCSI_STATUS_ERROR) 898 scsi_sense_print(&csio); 899 else 900 printf("status == 0x%x, scsi status == 0x%x\n", 901 csio.ccb_h.status, csio.scsi_status); 902 return(EIO); 903 } 904 905 if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0) 906 return (EINTR); 907 908 /* update block count */ 909 num -= blkcnt * dumppages; 910 blknum += blkcnt * dumppages; 911 addr += PAGE_SIZE * dumppages; 912 } 913 914 /* 915 * Sync the disk cache contents to the physical media. 916 */ 917 if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) { 918 919 xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1); 920 csio.ccb_h.ccb_state = DA_CCB_DUMP; 921 scsi_synchronize_cache(&csio, 922 /*retries*/1, 923 /*cbfcnp*/dadone, 924 MSG_SIMPLE_Q_TAG, 925 /*begin_lba*/0,/* Cover the whole disk */ 926 /*lb_count*/0, 927 SSD_FULL_SIZE, 928 5 * 60 * 1000); 929 xpt_polled_action((union ccb *)&csio); 930 931 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 932 if ((csio.ccb_h.status & CAM_STATUS_MASK) == 933 CAM_SCSI_STATUS_ERROR) { 934 int asc, ascq; 935 int sense_key, error_code; 936 937 scsi_extract_sense(&csio.sense_data, 938 &error_code, 939 &sense_key, 940 &asc, &ascq); 941 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 942 scsi_sense_print(&csio); 943 } else { 944 xpt_print_path(periph->path); 945 printf("Synchronize cache failed, status " 946 "== 0x%x, scsi status == 0x%x\n", 947 csio.ccb_h.status, csio.scsi_status); 948 } 949 } 950 } 951 return (0); 952 } 953 954 static void 955 dainit(void) 956 { 957 cam_status status; 958 struct cam_path *path; 959 960 /* 961 * Create our extend array for storing the devices we attach to. 962 */ 963 daperiphs = cam_extend_new(); 964 SLIST_INIT(&softc_list); 965 if (daperiphs == NULL) { 966 printf("da: Failed to alloc extend array!\n"); 967 return; 968 } 969 970 callout_init(&dasendorderedtag_ch); 971 972 /* 973 * Install a global async callback. This callback will 974 * receive async callbacks like "new device found". 975 */ 976 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 977 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 978 979 if (status == CAM_REQ_CMP) { 980 struct ccb_setasync csa; 981 982 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 983 csa.ccb_h.func_code = XPT_SASYNC_CB; 984 csa.event_enable = AC_FOUND_DEVICE; 985 csa.callback = daasync; 986 csa.callback_arg = NULL; 987 xpt_action((union ccb *)&csa); 988 status = csa.ccb_h.status; 989 xpt_free_path(path); 990 } 991 992 if (status != CAM_REQ_CMP) { 993 printf("da: Failed to attach master async callback " 994 "due to status 0x%x!\n", status); 995 } else { 996 997 /* 998 * Schedule a periodic event to occasionally send an 999 * ordered tag to a device. 1000 */ 1001 callout_reset(&dasendorderedtag_ch, 1002 (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL, 1003 dasendorderedtag, NULL); 1004 1005 /* Register our shutdown event handler */ 1006 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown, 1007 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 1008 printf("dainit: shutdown event registration failed!\n"); 1009 } 1010 } 1011 1012 static void 1013 daoninvalidate(struct cam_periph *periph) 1014 { 1015 struct da_softc *softc; 1016 struct buf *q_bp; 1017 struct ccb_setasync csa; 1018 1019 softc = (struct da_softc *)periph->softc; 1020 1021 /* 1022 * De-register any async callbacks. 1023 */ 1024 xpt_setup_ccb(&csa.ccb_h, periph->path, 1025 /* priority */ 5); 1026 csa.ccb_h.func_code = XPT_SASYNC_CB; 1027 csa.event_enable = 0; 1028 csa.callback = daasync; 1029 csa.callback_arg = periph; 1030 xpt_action((union ccb *)&csa); 1031 1032 softc->flags |= DA_FLAG_PACK_INVALID; 1033 1034 /* 1035 * Use a critical section to keep the buffer queue from being 1036 * modified while we traverse it. 1037 */ 1038 crit_enter(); 1039 1040 /* 1041 * Return all queued I/O with ENXIO. 1042 * XXX Handle any transactions queued to the card 1043 * with XPT_ABORT_CCB. 1044 */ 1045 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){ 1046 bufq_remove(&softc->buf_queue, q_bp); 1047 q_bp->b_resid = q_bp->b_bcount; 1048 q_bp->b_error = ENXIO; 1049 q_bp->b_flags |= B_ERROR; 1050 biodone(q_bp); 1051 } 1052 crit_exit(); 1053 1054 SLIST_REMOVE(&softc_list, softc, da_softc, links); 1055 1056 xpt_print_path(periph->path); 1057 printf("lost device\n"); 1058 } 1059 1060 static void 1061 dacleanup(struct cam_periph *periph) 1062 { 1063 struct da_softc *softc; 1064 1065 softc = (struct da_softc *)periph->softc; 1066 1067 devstat_remove_entry(&softc->device_stats); 1068 cam_extend_release(daperiphs, periph->unit_number); 1069 xpt_print_path(periph->path); 1070 printf("removing device entry\n"); 1071 /* 1072 * If we can't free the sysctl tree, oh well... 1073 */ 1074 if ((softc->flags & DA_FLAG_SCTX_INIT) != 0 1075 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 1076 xpt_print_path(periph->path); 1077 printf("can't remove sysctl context\n"); 1078 } 1079 if (softc->disk.d_rawdev) { 1080 disk_destroy(&softc->disk); 1081 } 1082 free(softc, M_DEVBUF); 1083 } 1084 1085 static void 1086 daasync(void *callback_arg, u_int32_t code, 1087 struct cam_path *path, void *arg) 1088 { 1089 struct cam_periph *periph; 1090 1091 periph = (struct cam_periph *)callback_arg; 1092 switch (code) { 1093 case AC_FOUND_DEVICE: 1094 { 1095 struct ccb_getdev *cgd; 1096 cam_status status; 1097 1098 cgd = (struct ccb_getdev *)arg; 1099 1100 if (SID_TYPE(&cgd->inq_data) != T_DIRECT 1101 && SID_TYPE(&cgd->inq_data) != T_RBC 1102 && SID_TYPE(&cgd->inq_data) != T_OPTICAL) 1103 break; 1104 1105 /* 1106 * Allocate a peripheral instance for 1107 * this device and start the probe 1108 * process. 1109 */ 1110 status = cam_periph_alloc(daregister, daoninvalidate, 1111 dacleanup, dastart, 1112 "da", CAM_PERIPH_BIO, 1113 cgd->ccb_h.path, daasync, 1114 AC_FOUND_DEVICE, cgd); 1115 1116 if (status != CAM_REQ_CMP 1117 && status != CAM_REQ_INPROG) 1118 printf("daasync: Unable to attach to new device " 1119 "due to status 0x%x\n", status); 1120 break; 1121 } 1122 case AC_SENT_BDR: 1123 case AC_BUS_RESET: 1124 { 1125 struct da_softc *softc; 1126 struct ccb_hdr *ccbh; 1127 1128 softc = (struct da_softc *)periph->softc; 1129 crit_enter(); 1130 /* 1131 * Don't fail on the expected unit attention 1132 * that will occur. 1133 */ 1134 softc->flags |= DA_FLAG_RETRY_UA; 1135 for (ccbh = LIST_FIRST(&softc->pending_ccbs); 1136 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le)) 1137 ccbh->ccb_state |= DA_CCB_RETRY_UA; 1138 crit_exit(); 1139 /* FALLTHROUGH*/ 1140 } 1141 default: 1142 cam_periph_async(periph, code, path, arg); 1143 break; 1144 } 1145 } 1146 1147 static void 1148 dasysctlinit(void *context, int pending) 1149 { 1150 struct cam_periph *periph; 1151 struct da_softc *softc; 1152 char tmpstr[80], tmpstr2[80]; 1153 1154 periph = (struct cam_periph *)context; 1155 softc = (struct da_softc *)periph->softc; 1156 1157 snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number); 1158 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 1159 1160 sysctl_ctx_init(&softc->sysctl_ctx); 1161 softc->flags |= DA_FLAG_SCTX_INIT; 1162 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 1163 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2, 1164 CTLFLAG_RD, 0, tmpstr); 1165 if (softc->sysctl_tree == NULL) { 1166 printf("dasysctlinit: unable to allocate sysctl tree\n"); 1167 return; 1168 } 1169 1170 /* 1171 * Now register the sysctl handler, so the user can the value on 1172 * the fly. 1173 */ 1174 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree), 1175 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW, 1176 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I", 1177 "Minimum CDB size"); 1178 } 1179 1180 static int 1181 dacmdsizesysctl(SYSCTL_HANDLER_ARGS) 1182 { 1183 int error, value; 1184 1185 value = *(int *)arg1; 1186 1187 error = sysctl_handle_int(oidp, &value, 0, req); 1188 1189 if ((error != 0) 1190 || (req->newptr == NULL)) 1191 return (error); 1192 1193 /* 1194 * Acceptable values here are 6, 10 or 12. It's possible we may 1195 * support a 16 byte minimum command size in the future, since 1196 * there are now READ(16) and WRITE(16) commands defined in the 1197 * SBC-2 spec. 1198 */ 1199 if (value < 6) 1200 value = 6; 1201 else if ((value > 6) 1202 && (value <= 10)) 1203 value = 10; 1204 else if (value > 10) 1205 value = 12; 1206 1207 *(int *)arg1 = value; 1208 1209 return (0); 1210 } 1211 1212 static cam_status 1213 daregister(struct cam_periph *periph, void *arg) 1214 { 1215 struct da_softc *softc; 1216 struct ccb_setasync csa; 1217 struct ccb_pathinq cpi; 1218 struct ccb_getdev *cgd; 1219 char tmpstr[80]; 1220 caddr_t match; 1221 1222 cgd = (struct ccb_getdev *)arg; 1223 if (periph == NULL) { 1224 printf("daregister: periph was NULL!!\n"); 1225 return(CAM_REQ_CMP_ERR); 1226 } 1227 1228 if (cgd == NULL) { 1229 printf("daregister: no getdev CCB, can't register device\n"); 1230 return(CAM_REQ_CMP_ERR); 1231 } 1232 1233 softc = malloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 1234 LIST_INIT(&softc->pending_ccbs); 1235 softc->state = DA_STATE_PROBE; 1236 bufq_init(&softc->buf_queue); 1237 if (SID_IS_REMOVABLE(&cgd->inq_data)) 1238 softc->flags |= DA_FLAG_PACK_REMOVABLE; 1239 if ((cgd->inq_data.flags & SID_CmdQue) != 0) 1240 softc->flags |= DA_FLAG_TAGGED_QUEUING; 1241 1242 periph->softc = softc; 1243 1244 cam_extend_set(daperiphs, periph->unit_number, periph); 1245 1246 /* 1247 * See if this device has any quirks. 1248 */ 1249 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1250 (caddr_t)da_quirk_table, 1251 sizeof(da_quirk_table)/sizeof(*da_quirk_table), 1252 sizeof(*da_quirk_table), scsi_inquiry_match); 1253 1254 if (match != NULL) 1255 softc->quirks = ((struct da_quirk_entry *)match)->quirks; 1256 else 1257 softc->quirks = DA_Q_NONE; 1258 1259 TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph); 1260 1261 /* Check if the SIM does not want 6 byte commands */ 1262 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1); 1263 cpi.ccb_h.func_code = XPT_PATH_INQ; 1264 xpt_action((union ccb *)&cpi); 1265 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE)) 1266 softc->quirks |= DA_Q_NO_6_BYTE; 1267 1268 /* 1269 * RBC devices don't have to support READ(6), only READ(10). 1270 */ 1271 if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC) 1272 softc->minimum_cmd_size = 10; 1273 else 1274 softc->minimum_cmd_size = 6; 1275 1276 /* 1277 * Load the user's default, if any. 1278 */ 1279 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size", 1280 periph->unit_number); 1281 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size); 1282 1283 /* 1284 * 6, 10 and 12 are the currently permissible values. 1285 */ 1286 if (softc->minimum_cmd_size < 6) 1287 softc->minimum_cmd_size = 6; 1288 else if ((softc->minimum_cmd_size > 6) 1289 && (softc->minimum_cmd_size <= 10)) 1290 softc->minimum_cmd_size = 10; 1291 else if (softc->minimum_cmd_size > 12) 1292 softc->minimum_cmd_size = 12; 1293 1294 /* 1295 * Block our timeout handler while we 1296 * add this softc to the dev list. 1297 */ 1298 crit_enter(); 1299 SLIST_INSERT_HEAD(&softc_list, softc, links); 1300 crit_exit(); 1301 1302 /* 1303 * The DA driver supports a blocksize, but 1304 * we don't know the blocksize until we do 1305 * a read capacity. So, set a flag to 1306 * indicate that the blocksize is 1307 * unavailable right now. We'll clear the 1308 * flag as soon as we've done a read capacity. 1309 */ 1310 devstat_add_entry(&softc->device_stats, "da", 1311 periph->unit_number, 0, 1312 DEVSTAT_BS_UNAVAILABLE, 1313 SID_TYPE(&cgd->inq_data) | DEVSTAT_TYPE_IF_SCSI, 1314 DEVSTAT_PRIORITY_DISK); 1315 1316 /* 1317 * Register this media as a disk 1318 */ 1319 disk_create(periph->unit_number, &softc->disk, 0, &da_cdevsw); 1320 1321 /* 1322 * Add async callbacks for bus reset and 1323 * bus device reset calls. I don't bother 1324 * checking if this fails as, in most cases, 1325 * the system will function just fine without 1326 * them and the only alternative would be to 1327 * not attach the device on failure. 1328 */ 1329 xpt_setup_ccb(&csa.ccb_h, periph->path, /*priority*/5); 1330 csa.ccb_h.func_code = XPT_SASYNC_CB; 1331 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE; 1332 csa.callback = daasync; 1333 csa.callback_arg = periph; 1334 xpt_action((union ccb *)&csa); 1335 /* 1336 * Lock this peripheral until we are setup. 1337 * This first call can't block 1338 */ 1339 (void)cam_periph_lock(periph, 0); 1340 xpt_schedule(periph, /*priority*/5); 1341 1342 return(CAM_REQ_CMP); 1343 } 1344 1345 static void 1346 dastart(struct cam_periph *periph, union ccb *start_ccb) 1347 { 1348 struct da_softc *softc; 1349 1350 softc = (struct da_softc *)periph->softc; 1351 1352 1353 switch (softc->state) { 1354 case DA_STATE_NORMAL: 1355 { 1356 /* Pull a buffer from the queue and get going on it */ 1357 struct buf *bp; 1358 1359 /* 1360 * See if there is a buf with work for us to do.. 1361 */ 1362 crit_enter(); 1363 bp = bufq_first(&softc->buf_queue); 1364 if (periph->immediate_priority <= periph->pinfo.priority) { 1365 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1366 ("queuing for immediate ccb\n")); 1367 start_ccb->ccb_h.ccb_state = DA_CCB_WAITING; 1368 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1369 periph_links.sle); 1370 periph->immediate_priority = CAM_PRIORITY_NONE; 1371 crit_exit(); 1372 wakeup(&periph->ccb_list); 1373 } else if (bp == NULL) { 1374 crit_exit(); 1375 xpt_release_ccb(start_ccb); 1376 } else { 1377 u_int8_t tag_code; 1378 1379 bufq_remove(&softc->buf_queue, bp); 1380 1381 devstat_start_transaction(&softc->device_stats); 1382 1383 if ((bp->b_flags & B_ORDERED) != 0 1384 || (softc->flags & DA_FLAG_NEED_OTAG) != 0) { 1385 softc->flags &= ~DA_FLAG_NEED_OTAG; 1386 softc->ordered_tag_count++; 1387 tag_code = MSG_ORDERED_Q_TAG; 1388 } else { 1389 tag_code = MSG_SIMPLE_Q_TAG; 1390 } 1391 scsi_read_write(&start_ccb->csio, 1392 /*retries*/da_retry_count, 1393 dadone, 1394 tag_code, 1395 bp->b_flags & B_READ, 1396 /*byte2*/0, 1397 softc->minimum_cmd_size, 1398 bp->b_pblkno, 1399 bp->b_bcount / softc->params.secsize, 1400 bp->b_data, 1401 bp->b_bcount, 1402 /*sense_len*/SSD_FULL_SIZE, 1403 da_default_timeout * 1000); 1404 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO; 1405 1406 /* 1407 * Block out any asyncronous callbacks 1408 * while we touch the pending ccb list. 1409 */ 1410 LIST_INSERT_HEAD(&softc->pending_ccbs, 1411 &start_ccb->ccb_h, periph_links.le); 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 crit_exit(); 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 1513 bp = (struct buf *)done_ccb->ccb_h.ccb_bp; 1514 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1515 int error; 1516 int sf; 1517 1518 if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0) 1519 sf = SF_RETRY_UA; 1520 else 1521 sf = 0; 1522 1523 /* Retry selection timeouts */ 1524 sf |= SF_RETRY_SELTO; 1525 1526 if ((error = daerror(done_ccb, 0, sf)) == ERESTART) { 1527 /* 1528 * A retry was scheuled, so 1529 * just return. 1530 */ 1531 return; 1532 } 1533 if (error != 0) { 1534 struct buf *q_bp; 1535 1536 crit_enter(); 1537 1538 if (error == ENXIO) { 1539 /* 1540 * Catastrophic error. Mark our pack as 1541 * invalid. 1542 */ 1543 /* XXX See if this is really a media 1544 * change first. 1545 */ 1546 xpt_print_path(periph->path); 1547 printf("Invalidating pack\n"); 1548 softc->flags |= DA_FLAG_PACK_INVALID; 1549 } 1550 1551 /* 1552 * return all queued I/O with EIO, so that 1553 * the client can retry these I/Os in the 1554 * proper order should it attempt to recover. 1555 */ 1556 while ((q_bp = bufq_first(&softc->buf_queue)) 1557 != NULL) { 1558 bufq_remove(&softc->buf_queue, q_bp); 1559 q_bp->b_resid = q_bp->b_bcount; 1560 q_bp->b_error = EIO; 1561 q_bp->b_flags |= B_ERROR; 1562 biodone(q_bp); 1563 } 1564 crit_exit(); 1565 bp->b_error = error; 1566 bp->b_resid = bp->b_bcount; 1567 bp->b_flags |= B_ERROR; 1568 } else { 1569 bp->b_resid = csio->resid; 1570 bp->b_error = 0; 1571 if (bp->b_resid != 0) 1572 bp->b_flags |= B_ERROR; 1573 } 1574 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1575 cam_release_devq(done_ccb->ccb_h.path, 1576 /*relsim_flags*/0, 1577 /*reduction*/0, 1578 /*timeout*/0, 1579 /*getcount_only*/0); 1580 } else { 1581 bp->b_resid = csio->resid; 1582 if (csio->resid > 0) 1583 bp->b_flags |= B_ERROR; 1584 } 1585 1586 /* 1587 * Block out any asyncronous callbacks 1588 * while we touch the pending ccb list. 1589 */ 1590 crit_enter(); 1591 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le); 1592 crit_exit(); 1593 1594 if (softc->device_stats.busy_count == 0) 1595 softc->flags |= DA_FLAG_WENT_IDLE; 1596 1597 devstat_end_transaction_buf(&softc->device_stats, bp); 1598 biodone(bp); 1599 break; 1600 } 1601 case DA_CCB_PROBE: 1602 { 1603 struct scsi_read_capacity_data *rdcap; 1604 char announce_buf[80]; 1605 1606 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr; 1607 1608 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) { 1609 struct disk_params *dp; 1610 1611 dasetgeom(periph, rdcap); 1612 dp = &softc->params; 1613 snprintf(announce_buf, sizeof(announce_buf), 1614 "%luMB (%u %u byte sectors: %dH %dS/T %dC)", 1615 (unsigned long) (((u_int64_t)dp->secsize * 1616 dp->sectors) / (1024*1024)), dp->sectors, 1617 dp->secsize, dp->heads, dp->secs_per_track, 1618 dp->cylinders); 1619 } else { 1620 int error; 1621 1622 announce_buf[0] = '\0'; 1623 1624 /* 1625 * Retry any UNIT ATTENTION type errors. They 1626 * are expected at boot. 1627 */ 1628 error = daerror(done_ccb, 0, SF_RETRY_UA | 1629 SF_RETRY_SELTO | SF_NO_PRINT); 1630 if (error == ERESTART) { 1631 /* 1632 * A retry was scheuled, so 1633 * just return. 1634 */ 1635 return; 1636 } else if (error != 0) { 1637 struct scsi_sense_data *sense; 1638 int asc, ascq; 1639 int sense_key, error_code; 1640 int have_sense; 1641 cam_status status; 1642 struct ccb_getdev cgd; 1643 1644 /* Don't wedge this device's queue */ 1645 cam_release_devq(done_ccb->ccb_h.path, 1646 /*relsim_flags*/0, 1647 /*reduction*/0, 1648 /*timeout*/0, 1649 /*getcount_only*/0); 1650 1651 status = done_ccb->ccb_h.status; 1652 1653 xpt_setup_ccb(&cgd.ccb_h, 1654 done_ccb->ccb_h.path, 1655 /* priority */ 1); 1656 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 1657 xpt_action((union ccb *)&cgd); 1658 1659 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0) 1660 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0) 1661 || ((status & CAM_AUTOSNS_VALID) == 0)) 1662 have_sense = FALSE; 1663 else 1664 have_sense = TRUE; 1665 1666 if (have_sense) { 1667 sense = &csio->sense_data; 1668 scsi_extract_sense(sense, &error_code, 1669 &sense_key, 1670 &asc, &ascq); 1671 } 1672 /* 1673 * Attach to anything that claims to be a 1674 * direct access or optical disk device, 1675 * as long as it doesn't return a "Logical 1676 * unit not supported" (0x25) error. 1677 */ 1678 if ((have_sense) && (asc != 0x25) 1679 && (error_code == SSD_CURRENT_ERROR)) 1680 snprintf(announce_buf, 1681 sizeof(announce_buf), 1682 "Attempt to query device " 1683 "size failed: %s, %s", 1684 scsi_sense_key_text[sense_key], 1685 scsi_sense_desc(asc,ascq, 1686 &cgd.inq_data)); 1687 else { 1688 if (have_sense) 1689 scsi_sense_print( 1690 &done_ccb->csio); 1691 else { 1692 xpt_print_path(periph->path); 1693 printf("got CAM status %#x\n", 1694 done_ccb->ccb_h.status); 1695 } 1696 1697 xpt_print_path(periph->path); 1698 printf("fatal error, failed" 1699 " to attach to device\n"); 1700 1701 /* 1702 * Free up resources. 1703 */ 1704 cam_periph_invalidate(periph); 1705 } 1706 } 1707 } 1708 free(rdcap, M_TEMP); 1709 if (announce_buf[0] != '\0') { 1710 xpt_announce_periph(periph, announce_buf); 1711 /* 1712 * Create our sysctl variables, now that we know 1713 * we have successfully attached. 1714 */ 1715 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task); 1716 } 1717 softc->state = DA_STATE_NORMAL; 1718 /* 1719 * Since our peripheral may be invalidated by an error 1720 * above or an external event, we must release our CCB 1721 * before releasing the probe lock on the peripheral. 1722 * The peripheral will only go away once the last lock 1723 * is removed, and we need it around for the CCB release 1724 * operation. 1725 */ 1726 xpt_release_ccb(done_ccb); 1727 cam_periph_unlock(periph); 1728 return; 1729 } 1730 case DA_CCB_WAITING: 1731 { 1732 /* Caller will release the CCB */ 1733 wakeup(&done_ccb->ccb_h.cbfcnp); 1734 return; 1735 } 1736 case DA_CCB_DUMP: 1737 /* No-op. We're polling */ 1738 return; 1739 default: 1740 break; 1741 } 1742 xpt_release_ccb(done_ccb); 1743 } 1744 1745 static int 1746 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1747 { 1748 struct da_softc *softc; 1749 struct cam_periph *periph; 1750 int error; 1751 1752 periph = xpt_path_periph(ccb->ccb_h.path); 1753 softc = (struct da_softc *)periph->softc; 1754 1755 /* 1756 * Automatically detect devices that do not support 1757 * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs. 1758 */ 1759 error = 0; 1760 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) { 1761 error = cmd6workaround(ccb); 1762 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) == 1763 CAM_SCSI_STATUS_ERROR) 1764 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID) 1765 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) 1766 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) 1767 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) { 1768 int sense_key, error_code, asc, ascq; 1769 1770 scsi_extract_sense(&ccb->csio.sense_data, 1771 &error_code, &sense_key, &asc, &ascq); 1772 if (sense_key == SSD_KEY_ILLEGAL_REQUEST) 1773 error = cmd6workaround(ccb); 1774 } 1775 if (error == ERESTART) 1776 return (ERESTART); 1777 1778 /* 1779 * XXX 1780 * Until we have a better way of doing pack validation, 1781 * don't treat UAs as errors. 1782 */ 1783 sense_flags |= SF_RETRY_UA; 1784 return(cam_periph_error(ccb, cam_flags, sense_flags, 1785 &softc->saved_ccb)); 1786 } 1787 1788 static void 1789 daprevent(struct cam_periph *periph, int action) 1790 { 1791 struct da_softc *softc; 1792 union ccb *ccb; 1793 int error; 1794 1795 softc = (struct da_softc *)periph->softc; 1796 1797 if (((action == PR_ALLOW) 1798 && (softc->flags & DA_FLAG_PACK_LOCKED) == 0) 1799 || ((action == PR_PREVENT) 1800 && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) { 1801 return; 1802 } 1803 1804 ccb = cam_periph_getccb(periph, /*priority*/1); 1805 1806 scsi_prevent(&ccb->csio, 1807 /*retries*/1, 1808 /*cbcfp*/dadone, 1809 MSG_SIMPLE_Q_TAG, 1810 action, 1811 SSD_FULL_SIZE, 1812 5000); 1813 1814 error = cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 1815 /*sense_flags*/0, &softc->device_stats); 1816 1817 if (error == 0) { 1818 if (action == PR_ALLOW) 1819 softc->flags &= ~DA_FLAG_PACK_LOCKED; 1820 else 1821 softc->flags |= DA_FLAG_PACK_LOCKED; 1822 } 1823 1824 xpt_release_ccb(ccb); 1825 } 1826 1827 static void 1828 dasetgeom(struct cam_periph *periph, struct scsi_read_capacity_data * rdcap) 1829 { 1830 struct ccb_calc_geometry ccg; 1831 struct da_softc *softc; 1832 struct disk_params *dp; 1833 1834 softc = (struct da_softc *)periph->softc; 1835 1836 dp = &softc->params; 1837 dp->secsize = scsi_4btoul(rdcap->length); 1838 dp->sectors = scsi_4btoul(rdcap->addr) + 1; 1839 /* 1840 * Have the controller provide us with a geometry 1841 * for this disk. The only time the geometry 1842 * matters is when we boot and the controller 1843 * is the only one knowledgeable enough to come 1844 * up with something that will make this a bootable 1845 * device. 1846 */ 1847 xpt_setup_ccb(&ccg.ccb_h, periph->path, /*priority*/1); 1848 ccg.ccb_h.func_code = XPT_CALC_GEOMETRY; 1849 ccg.block_size = dp->secsize; 1850 ccg.volume_size = dp->sectors; 1851 ccg.heads = 0; 1852 ccg.secs_per_track = 0; 1853 ccg.cylinders = 0; 1854 xpt_action((union ccb*)&ccg); 1855 dp->heads = ccg.heads; 1856 dp->secs_per_track = ccg.secs_per_track; 1857 dp->cylinders = ccg.cylinders; 1858 } 1859 1860 static void 1861 dasendorderedtag(void *arg) 1862 { 1863 struct da_softc *softc; 1864 1865 for (softc = SLIST_FIRST(&softc_list); 1866 softc != NULL; 1867 softc = SLIST_NEXT(softc, links)) { 1868 crit_enter(); 1869 if ((softc->ordered_tag_count == 0) 1870 && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) { 1871 softc->flags |= DA_FLAG_NEED_OTAG; 1872 } 1873 if (softc->device_stats.busy_count > 0) 1874 softc->flags &= ~DA_FLAG_WENT_IDLE; 1875 1876 softc->ordered_tag_count = 0; 1877 crit_exit(); 1878 } 1879 /* Queue us up again */ 1880 callout_reset(&dasendorderedtag_ch, 1881 (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL, 1882 dasendorderedtag, NULL); 1883 } 1884 1885 /* 1886 * Step through all DA peripheral drivers, and if the device is still open, 1887 * sync the disk cache to physical media. 1888 */ 1889 static void 1890 dashutdown(void * arg, int howto) 1891 { 1892 struct cam_periph *periph; 1893 struct da_softc *softc; 1894 1895 for (periph = TAILQ_FIRST(&dadriver.units); periph != NULL; 1896 periph = TAILQ_NEXT(periph, unit_links)) { 1897 union ccb ccb; 1898 softc = (struct da_softc *)periph->softc; 1899 1900 /* 1901 * We only sync the cache if the drive is still open, and 1902 * if the drive is capable of it.. 1903 */ 1904 if (((softc->flags & DA_FLAG_OPEN) == 0) 1905 || (softc->quirks & DA_Q_NO_SYNC_CACHE)) 1906 continue; 1907 1908 xpt_setup_ccb(&ccb.ccb_h, periph->path, /*priority*/1); 1909 1910 ccb.ccb_h.ccb_state = DA_CCB_DUMP; 1911 scsi_synchronize_cache(&ccb.csio, 1912 /*retries*/1, 1913 /*cbfcnp*/dadone, 1914 MSG_SIMPLE_Q_TAG, 1915 /*begin_lba*/0, /* whole disk */ 1916 /*lb_count*/0, 1917 SSD_FULL_SIZE, 1918 5 * 60 * 1000); 1919 1920 xpt_polled_action(&ccb); 1921 1922 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1923 if (((ccb.ccb_h.status & CAM_STATUS_MASK) == 1924 CAM_SCSI_STATUS_ERROR) 1925 && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){ 1926 int error_code, sense_key, asc, ascq; 1927 1928 scsi_extract_sense(&ccb.csio.sense_data, 1929 &error_code, &sense_key, 1930 &asc, &ascq); 1931 1932 if (sense_key != SSD_KEY_ILLEGAL_REQUEST) 1933 scsi_sense_print(&ccb.csio); 1934 } else { 1935 xpt_print_path(periph->path); 1936 printf("Synchronize cache failed, status " 1937 "== 0x%x, scsi status == 0x%x\n", 1938 ccb.ccb_h.status, ccb.csio.scsi_status); 1939 } 1940 } 1941 1942 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1943 cam_release_devq(ccb.ccb_h.path, 1944 /*relsim_flags*/0, 1945 /*reduction*/0, 1946 /*timeout*/0, 1947 /*getcount_only*/0); 1948 1949 } 1950 } 1951 1952 #else /* !_KERNEL */ 1953 1954 /* 1955 * XXX This is only left out of the kernel build to silence warnings. If, 1956 * for some reason this function is used in the kernel, the ifdefs should 1957 * be moved so it is included both in the kernel and userland. 1958 */ 1959 void 1960 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries, 1961 void (*cbfcnp)(struct cam_periph *, union ccb *), 1962 u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave, 1963 u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len, 1964 u_int32_t timeout) 1965 { 1966 struct scsi_format_unit *scsi_cmd; 1967 1968 scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes; 1969 scsi_cmd->opcode = FORMAT_UNIT; 1970 scsi_cmd->byte2 = byte2; 1971 scsi_ulto2b(ileave, scsi_cmd->interleave); 1972 1973 cam_fill_csio(csio, 1974 retries, 1975 cbfcnp, 1976 /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE, 1977 tag_action, 1978 data_ptr, 1979 dxfer_len, 1980 sense_len, 1981 sizeof(*scsi_cmd), 1982 timeout); 1983 } 1984 1985 #endif /* _KERNEL */ 1986