105 106typedef enum { 107 SA_STATE_NORMAL, SA_STATE_ABNORMAL 108} sa_state; 109 110#define ccb_pflags ppriv_field0 111#define ccb_bp ppriv_ptr1 112 113#define SA_CCB_BUFFER_IO 0x0 114#define SA_CCB_WAITING 0x1 115#define SA_CCB_TYPEMASK 0x1 116#define SA_POSITION_UPDATED 0x2 117 118#define Set_CCB_Type(x, type) \ 119 x->ccb_h.ccb_pflags &= ~SA_CCB_TYPEMASK; \ 120 x->ccb_h.ccb_pflags |= type 121 122#define CCB_Type(x) (x->ccb_h.ccb_pflags & SA_CCB_TYPEMASK) 123 124 125 126typedef enum { 127 SA_FLAG_OPEN = 0x0001, 128 SA_FLAG_FIXED = 0x0002, 129 SA_FLAG_TAPE_LOCKED = 0x0004, 130 SA_FLAG_TAPE_MOUNTED = 0x0008, 131 SA_FLAG_TAPE_WP = 0x0010, 132 SA_FLAG_TAPE_WRITTEN = 0x0020, 133 SA_FLAG_EOM_PENDING = 0x0040, 134 SA_FLAG_EIO_PENDING = 0x0080, 135 SA_FLAG_EOF_PENDING = 0x0100, 136 SA_FLAG_ERR_PENDING = (SA_FLAG_EOM_PENDING|SA_FLAG_EIO_PENDING| 137 SA_FLAG_EOF_PENDING), 138 SA_FLAG_INVALID = 0x0200, 139 SA_FLAG_COMP_ENABLED = 0x0400, 140 SA_FLAG_COMP_SUPP = 0x0800, 141 SA_FLAG_COMP_UNSUPP = 0x1000, 142 SA_FLAG_TAPE_FROZEN = 0x2000 143} sa_flags; 144 145typedef enum { 146 SA_MODE_REWIND = 0x00, 147 SA_MODE_NOREWIND = 0x01, 148 SA_MODE_OFFLINE = 0x02 149} sa_mode; 150 151typedef enum { 152 SA_PARAM_NONE = 0x00, 153 SA_PARAM_BLOCKSIZE = 0x01, 154 SA_PARAM_DENSITY = 0x02, 155 SA_PARAM_COMPRESSION = 0x04, 156 SA_PARAM_BUFF_MODE = 0x08, 157 SA_PARAM_NUMBLOCKS = 0x10, 158 SA_PARAM_WP = 0x20, 159 SA_PARAM_SPEED = 0x40, 160 SA_PARAM_ALL = 0x7f 161} sa_params; 162 163typedef enum { 164 SA_QUIRK_NONE = 0x00, 165 SA_QUIRK_NOCOMP = 0x01, /* Can't deal with compression at all */ 166 SA_QUIRK_FIXED = 0x02, /* Force fixed mode */ 167 SA_QUIRK_VARIABLE = 0x04, /* Force variable mode */ 168 SA_QUIRK_2FM = 0x08, /* Needs Two File Marks at EOD */ 169 SA_QUIRK_1FM = 0x10, /* No more than 1 File Mark at EOD */ 170 SA_QUIRK_NODREAD = 0x20, /* Don't try and dummy read density */ 171 SA_QUIRK_NO_MODESEL = 0x40, /* Don't do mode select at all */ 172 SA_QUIRK_NO_CPAGE = 0x80 /* Don't use DEVICE COMPRESSION page */ 173} sa_quirks; 174 175/* units are bits 4-7, 16-21 (1024 units) */ 176#define SAUNIT(DEV) \ 177 (((minor(DEV) & 0xF0) >> 4) | ((minor(DEV) & 0x3f0000) >> 16)) 178 179#define SAMODE(z) ((minor(z) & 0x3)) 180#define SADENSITY(z) (((minor(z) >> 2) & 0x3)) 181#define SA_IS_CTRL(z) (minor(z) & (1 << 29)) 182 183#define SA_NOT_CTLDEV 0 184#define SA_CTLDEV 1 185 186#define SA_ATYPE_R 0 187#define SA_ATYPE_NR 1 188#define SA_ATYPE_ER 2 189 190#define SAMINOR(ctl, unit, mode, access) \ 191 ((ctl << 29) | ((unit & 0x3f0) << 16) | ((unit & 0xf) << 4) | \ 192 (mode << 0x2) | (access & 0x3)) 193 194#define SA_NUM_MODES 4 195struct sa_devs { 196 struct cdev *ctl_dev; 197 struct sa_mode_devs { 198 struct cdev *r_dev; 199 struct cdev *nr_dev; 200 struct cdev *er_dev; 201 } mode_devs[SA_NUM_MODES]; 202}; 203 204struct sa_softc { 205 sa_state state; 206 sa_flags flags; 207 sa_quirks quirks; 208 struct bio_queue_head bio_queue; 209 int queue_count; 210 struct devstat *device_stats; 211 struct sa_devs devs; 212 int blk_gran; 213 int blk_mask; 214 int blk_shift; 215 u_int32_t max_blk; 216 u_int32_t min_blk; 217 u_int32_t comp_algorithm; 218 u_int32_t saved_comp_algorithm; 219 u_int32_t media_blksize; 220 u_int32_t last_media_blksize; 221 u_int32_t media_numblks; 222 u_int8_t media_density; 223 u_int8_t speed; 224 u_int8_t scsi_rev; 225 u_int8_t dsreg; /* mtio mt_dsreg, redux */ 226 int buffer_mode; 227 int filemarks; 228 union ccb saved_ccb; 229 int last_resid_was_io; 230 231 /* 232 * Relative to BOT Location. 233 */ 234 daddr_t fileno; 235 daddr_t blkno; 236 237 /* 238 * Latched Error Info 239 */ 240 struct { 241 struct scsi_sense_data _last_io_sense; 242 u_int32_t _last_io_resid; 243 u_int8_t _last_io_cdb[CAM_MAX_CDBLEN]; 244 struct scsi_sense_data _last_ctl_sense; 245 u_int32_t _last_ctl_resid; 246 u_int8_t _last_ctl_cdb[CAM_MAX_CDBLEN]; 247#define last_io_sense errinfo._last_io_sense 248#define last_io_resid errinfo._last_io_resid 249#define last_io_cdb errinfo._last_io_cdb 250#define last_ctl_sense errinfo._last_ctl_sense 251#define last_ctl_resid errinfo._last_ctl_resid 252#define last_ctl_cdb errinfo._last_ctl_cdb 253 } errinfo; 254 /* 255 * Misc other flags/state 256 */ 257 u_int32_t 258 : 31, 259 ctrl_mode : 1; /* control device open */ 260}; 261 262struct sa_quirk_entry { 263 struct scsi_inquiry_pattern inq_pat; /* matching pattern */ 264 sa_quirks quirks; /* specific quirk type */ 265 u_int32_t prefblk; /* preferred blocksize when in fixed mode */ 266}; 267 268static struct sa_quirk_entry sa_quirk_table[] = 269{ 270 { 271 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "OnStream", 272 "ADR*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_NODREAD | 273 SA_QUIRK_1FM|SA_QUIRK_NO_MODESEL, 32768 274 }, 275 { 276 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 277 "Python 06408*", "*"}, SA_QUIRK_NODREAD, 0 278 }, 279 { 280 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 281 "Python 25601*", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_NODREAD, 0 282 }, 283 { 284 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 285 "Python*", "*"}, SA_QUIRK_NODREAD, 0 286 }, 287 { 288 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 289 "VIPER 150*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 290 }, 291 { 292 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 293 "VIPER 2525 25462", "-011"}, 294 SA_QUIRK_NOCOMP|SA_QUIRK_1FM|SA_QUIRK_NODREAD, 0 295 }, 296 { 297 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "ARCHIVE", 298 "VIPER 2525*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 299 }, 300#if 0 301 { 302 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 303 "C15*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_NO_CPAGE, 0, 304 }, 305#endif 306 { 307 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 308 "C56*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 309 }, 310 { 311 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 312 "T20*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 313 }, 314 { 315 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 316 "T4000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 317 }, 318 { 319 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "HP", 320 "HP-88780*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 321 }, 322 { 323 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "KENNEDY", 324 "*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 325 }, 326 { 327 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "M4 DATA", 328 "123107 SCSI*", "*"}, SA_QUIRK_VARIABLE|SA_QUIRK_2FM, 0 329 }, 330 { /* jreynold@primenet.com */ 331 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", 332 "STT8000N*", "*"}, SA_QUIRK_1FM, 0 333 }, 334 { /* mike@sentex.net */ 335 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "Seagate", 336 "STT20000*", "*"}, SA_QUIRK_1FM, 0 337 }, 338 { 339 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 340 " TDC 3600", "U07:"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 341 }, 342 { 343 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 344 " TDC 3800", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 345 }, 346 { 347 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 348 " TDC 4100", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 349 }, 350 { 351 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 352 " TDC 4200", "*"}, SA_QUIRK_NOCOMP|SA_QUIRK_1FM, 512 353 }, 354 { 355 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "TANDBERG", 356 " SLR*", "*"}, SA_QUIRK_1FM, 0 357 }, 358 { 359 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", 360 "5525ES*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 512 361 }, 362 { 363 { T_SEQUENTIAL, SIP_MEDIA_REMOVABLE, "WANGTEK", 364 "51000*", "*"}, SA_QUIRK_FIXED|SA_QUIRK_1FM, 1024 365 } 366}; 367 368static d_open_t saopen; 369static d_close_t saclose; 370static d_strategy_t sastrategy; 371static d_ioctl_t saioctl; 372static periph_init_t sainit; 373static periph_ctor_t saregister; 374static periph_oninv_t saoninvalidate; 375static periph_dtor_t sacleanup; 376static periph_start_t sastart; 377static void saasync(void *callback_arg, u_int32_t code, 378 struct cam_path *path, void *arg); 379static void sadone(struct cam_periph *periph, 380 union ccb *start_ccb); 381static int saerror(union ccb *ccb, u_int32_t cam_flags, 382 u_int32_t sense_flags); 383static int samarkswanted(struct cam_periph *); 384static int sacheckeod(struct cam_periph *periph); 385static int sagetparams(struct cam_periph *periph, 386 sa_params params_to_get, 387 u_int32_t *blocksize, u_int8_t *density, 388 u_int32_t *numblocks, int *buff_mode, 389 u_int8_t *write_protect, u_int8_t *speed, 390 int *comp_supported, int *comp_enabled, 391 u_int32_t *comp_algorithm, 392 sa_comp_t *comp_page); 393static int sasetparams(struct cam_periph *periph, 394 sa_params params_to_set, 395 u_int32_t blocksize, u_int8_t density, 396 u_int32_t comp_algorithm, 397 u_int32_t sense_flags); 398static void saprevent(struct cam_periph *periph, int action); 399static int sarewind(struct cam_periph *periph); 400static int saspace(struct cam_periph *periph, int count, 401 scsi_space_code code); 402static int samount(struct cam_periph *, int, struct cdev *); 403static int saretension(struct cam_periph *periph); 404static int sareservereleaseunit(struct cam_periph *periph, 405 int reserve); 406static int saloadunload(struct cam_periph *periph, int load); 407static int saerase(struct cam_periph *periph, int longerase); 408static int sawritefilemarks(struct cam_periph *periph, 409 int nmarks, int setmarks); 410static int sardpos(struct cam_periph *periph, int, u_int32_t *); 411static int sasetpos(struct cam_periph *periph, int, u_int32_t *); 412 413 414static struct periph_driver sadriver = 415{ 416 sainit, "sa", 417 TAILQ_HEAD_INITIALIZER(sadriver.units), /* generation */ 0 418}; 419 420PERIPHDRIVER_DECLARE(sa, sadriver); 421 422/* For 2.2-stable support */ 423#ifndef D_TAPE 424#define D_TAPE 0 425#endif 426 427 428static struct cdevsw sa_cdevsw = { 429 .d_version = D_VERSION, 430 .d_open = saopen, 431 .d_close = saclose, 432 .d_read = physread, 433 .d_write = physwrite, 434 .d_ioctl = saioctl, 435 .d_strategy = sastrategy, 436 .d_name = "sa", 437 .d_flags = D_TAPE | D_NEEDGIANT, 438}; 439 440static int 441saopen(struct cdev *dev, int flags, int fmt, struct thread *td) 442{ 443 struct cam_periph *periph; 444 struct sa_softc *softc; 445 int unit; 446 int error; 447 int s; 448 449 unit = SAUNIT(dev); 450 451 s = splsoftcam(); 452 periph = (struct cam_periph *)dev->si_drv1; 453 if (periph == NULL) { 454 (void) splx(s); 455 return (ENXIO); 456 } 457 softc = (struct sa_softc *)periph->softc; 458 if ((error = cam_periph_lock(periph, PRIBIO|PCATCH)) != 0) { 459 splx(s); 460 return (error); 461 } 462 splx(s); 463 464 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, 465 ("saopen(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags)); 466 467 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 468 cam_periph_unlock(periph); 469 return (ENXIO); 470 } 471 if (SA_IS_CTRL(dev)) { 472 softc->ctrl_mode = 1; 473 cam_periph_unlock(periph); 474 return (0); 475 } 476 477 478 if (softc->flags & SA_FLAG_OPEN) { 479 error = EBUSY; 480 } else if (softc->flags & SA_FLAG_INVALID) { 481 error = ENXIO; 482 } else { 483 /* 484 * The function samount ensures media is loaded and ready. 485 * It also does a device RESERVE if the tape isn't yet mounted. 486 */ 487 error = samount(periph, flags, dev); 488 } 489 490 if (error) { 491 cam_periph_release(periph); 492 } else { 493 saprevent(periph, PR_PREVENT); 494 softc->flags |= SA_FLAG_OPEN; 495 } 496 cam_periph_unlock(periph); 497 return (error); 498} 499 500static int 501saclose(struct cdev *dev, int flag, int fmt, struct thread *td) 502{ 503 struct cam_periph *periph; 504 struct sa_softc *softc; 505 int unit, mode, error, writing, tmp; 506 int closedbits = SA_FLAG_OPEN; 507 508 unit = SAUNIT(dev); 509 mode = SAMODE(dev); 510 periph = (struct cam_periph *)dev->si_drv1; 511 if (periph == NULL) 512 return (ENXIO); 513 514 softc = (struct sa_softc *)periph->softc; 515 516 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE|CAM_DEBUG_INFO, 517 ("saclose(%d): dev=0x%x softc=0x%x\n", unit, unit, softc->flags)); 518 519 520 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) { 521 return (error); 522 } 523 524 if (SA_IS_CTRL(dev)) { 525 softc->ctrl_mode = 0; 526 cam_periph_release(periph); 527 cam_periph_unlock(periph); 528 return (0); 529 } 530 531 /* 532 * Were we writing the tape? 533 */ 534 writing = (softc->flags & SA_FLAG_TAPE_WRITTEN) != 0; 535 536 /* 537 * See whether or not we need to write filemarks. If this 538 * fails, we probably have to assume we've lost tape 539 * position. 540 */ 541 error = sacheckeod(periph); 542 if (error) { 543 xpt_print_path(periph->path); 544 printf("failed to write terminating filemark(s)\n"); 545 softc->flags |= SA_FLAG_TAPE_FROZEN; 546 } 547 548 /* 549 * Whatever we end up doing, allow users to eject tapes from here on. 550 */ 551 saprevent(periph, PR_ALLOW); 552 553 /* 554 * Decide how to end... 555 */ 556 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { 557 closedbits |= SA_FLAG_TAPE_FROZEN; 558 } else switch (mode) { 559 case SA_MODE_OFFLINE: 560 /* 561 * An 'offline' close is an unconditional release of 562 * frozen && mount conditions, irrespective of whether 563 * these operations succeeded. The reason for this is 564 * to allow at least some kind of programmatic way 565 * around our state getting all fouled up. If somebody 566 * issues an 'offline' command, that will be allowed 567 * to clear state. 568 */ 569 (void) sarewind(periph); 570 (void) saloadunload(periph, FALSE); 571 closedbits |= SA_FLAG_TAPE_MOUNTED|SA_FLAG_TAPE_FROZEN; 572 break; 573 case SA_MODE_REWIND: 574 /* 575 * If the rewind fails, return an error- if anyone cares, 576 * but not overwriting any previous error. 577 * 578 * We don't clear the notion of mounted here, but we do 579 * clear the notion of frozen if we successfully rewound. 580 */ 581 tmp = sarewind(periph); 582 if (tmp) { 583 if (error != 0) 584 error = tmp; 585 } else { 586 closedbits |= SA_FLAG_TAPE_FROZEN; 587 } 588 break; 589 case SA_MODE_NOREWIND: 590 /* 591 * If we're not rewinding/unloading the tape, find out 592 * whether we need to back up over one of two filemarks 593 * we wrote (if we wrote two filemarks) so that appends 594 * from this point on will be sane. 595 */ 596 if (error == 0 && writing && (softc->quirks & SA_QUIRK_2FM)) { 597 tmp = saspace(periph, -1, SS_FILEMARKS); 598 if (tmp) { 599 xpt_print_path(periph->path); 600 printf("unable to backspace over one of double" 601 " filemarks at end of tape\n"); 602 xpt_print_path(periph->path); 603 printf("it is possible that this device" 604 " needs a SA_QUIRK_1FM quirk set for it\n"); 605 softc->flags |= SA_FLAG_TAPE_FROZEN; 606 } 607 } 608 break; 609 default: 610 xpt_print_path(periph->path); 611 panic("unknown mode 0x%x in saclose", mode); 612 /* NOTREACHED */ 613 break; 614 } 615 616 /* 617 * We wish to note here that there are no more filemarks to be written. 618 */ 619 softc->filemarks = 0; 620 softc->flags &= ~SA_FLAG_TAPE_WRITTEN; 621 622 /* 623 * And we are no longer open for business. 624 */ 625 softc->flags &= ~closedbits; 626 627 /* 628 * Inform users if tape state if frozen.... 629 */ 630 if (softc->flags & SA_FLAG_TAPE_FROZEN) { 631 xpt_print_path(periph->path); 632 printf("tape is now frozen- use an OFFLINE, REWIND or MTEOM " 633 "command to clear this state.\n"); 634 } 635 636 /* release the device if it is no longer mounted */ 637 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) 638 sareservereleaseunit(periph, FALSE); 639 640 cam_periph_unlock(periph); 641 cam_periph_release(periph); 642 643 return (error); 644} 645 646/* 647 * Actually translate the requested transfer into one the physical driver 648 * can understand. The transfer is described by a buf and will include 649 * only one physical transfer. 650 */ 651static void 652sastrategy(struct bio *bp) 653{ 654 struct cam_periph *periph; 655 struct sa_softc *softc; 656 int s; 657 658 bp->bio_resid = bp->bio_bcount; 659 if (SA_IS_CTRL(bp->bio_dev)) { 660 biofinish(bp, NULL, EINVAL); 661 return; 662 } 663 periph = (struct cam_periph *)bp->bio_dev->si_drv1; 664 if (periph == NULL) { 665 biofinish(bp, NULL, ENXIO); 666 return; 667 } 668 softc = (struct sa_softc *)periph->softc; 669 670 s = splsoftcam(); 671 672 if (softc->flags & SA_FLAG_INVALID) { 673 splx(s); 674 biofinish(bp, NULL, ENXIO); 675 return; 676 } 677 678 if (softc->flags & SA_FLAG_TAPE_FROZEN) { 679 splx(s); 680 biofinish(bp, NULL, EPERM); 681 return; 682 } 683 684 splx(s); 685 686 /* 687 * If it's a null transfer, return immediatly 688 */ 689 if (bp->bio_bcount == 0) { 690 biodone(bp); 691 return; 692 } 693 694 /* valid request? */ 695 if (softc->flags & SA_FLAG_FIXED) { 696 /* 697 * Fixed block device. The byte count must 698 * be a multiple of our block size. 699 */ 700 if (((softc->blk_mask != ~0) && 701 ((bp->bio_bcount & softc->blk_mask) != 0)) || 702 ((softc->blk_mask == ~0) && 703 ((bp->bio_bcount % softc->min_blk) != 0))) { 704 xpt_print_path(periph->path); 705 printf("Invalid request. Fixed block device " 706 "requests must be a multiple " 707 "of %d bytes\n", softc->min_blk); 708 biofinish(bp, NULL, EINVAL); 709 return; 710 } 711 } else if ((bp->bio_bcount > softc->max_blk) || 712 (bp->bio_bcount < softc->min_blk) || 713 (bp->bio_bcount & softc->blk_mask) != 0) { 714 715 xpt_print_path(periph->path); 716 printf("Invalid request. Variable block device " 717 "requests must be "); 718 if (softc->blk_mask != 0) { 719 printf("a multiple of %d ", (0x1 << softc->blk_gran)); 720 } 721 printf("between %d and %d bytes\n", softc->min_blk, 722 softc->max_blk); 723 biofinish(bp, NULL, EINVAL); 724 return; 725 } 726 727 /* 728 * Mask interrupts so that the device cannot be invalidated until 729 * after we are in the queue. Otherwise, we might not properly 730 * clean up one of the buffers. 731 */ 732 s = splbio(); 733 734 /* 735 * Place it at the end of the queue. 736 */ 737 bioq_insert_tail(&softc->bio_queue, bp); 738 softc->queue_count++; 739#if 0 740 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 741 ("sastrategy: queuing a %ld %s byte %s\n", bp->bio_bcount, 742 (softc->flags & SA_FLAG_FIXED)? "fixed" : "variable", 743 (bp->bio_cmd == BIO_READ)? "read" : "write")); 744#endif 745 if (softc->queue_count > 1) { 746 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 747 ("sastrategy: queue count now %d\n", softc->queue_count)); 748 } 749 splx(s); 750 751 /* 752 * Schedule ourselves for performing the work. 753 */ 754 xpt_schedule(periph, 1); 755 756 return; 757} 758 759static int 760saioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td) 761{ 762 struct cam_periph *periph; 763 struct sa_softc *softc; 764 scsi_space_code spaceop; 765 int didlockperiph = 0; 766 int s; 767 int mode; 768 int error = 0; 769 770 mode = SAMODE(dev); 771 error = 0; /* shut up gcc */ 772 spaceop = 0; /* shut up gcc */ 773 774 periph = (struct cam_periph *)dev->si_drv1; 775 if (periph == NULL) 776 return (ENXIO); 777 778 softc = (struct sa_softc *)periph->softc; 779 780 /* 781 * Check for control mode accesses. We allow MTIOCGET and 782 * MTIOCERRSTAT (but need to be the only one open in order 783 * to clear latched status), and MTSETBSIZE, MTSETDNSTY 784 * and MTCOMP (but need to be the only one accessing this 785 * device to run those). 786 */ 787 788 if (SA_IS_CTRL(dev)) { 789 switch (cmd) { 790 case MTIOCGETEOTMODEL: 791 case MTIOCGET: 792 break; 793 case MTIOCERRSTAT: 794 /* 795 * If the periph isn't already locked, lock it 796 * so our MTIOCERRSTAT can reset latched error stats. 797 * 798 * If the periph is already locked, skip it because 799 * we're just getting status and it'll be up to the 800 * other thread that has this device open to do 801 * an MTIOCERRSTAT that would clear latched status. 802 */ 803 s = splsoftcam(); 804 if ((periph->flags & CAM_PERIPH_LOCKED) == 0) { 805 error = cam_periph_lock(periph, PRIBIO|PCATCH); 806 if (error != 0) { 807 splx(s); 808 return (error); 809 } 810 didlockperiph = 1; 811 } 812 break; 813 814 case MTIOCTOP: 815 { 816 struct mtop *mt = (struct mtop *) arg; 817 818 /* 819 * Check to make sure it's an OP we can perform 820 * with no media inserted. 821 */ 822 switch (mt->mt_op) { 823 case MTSETBSIZ: 824 case MTSETDNSTY: 825 case MTCOMP: 826 mt = NULL; 827 /* FALLTHROUGH */ 828 default: 829 break; 830 } 831 if (mt != NULL) { 832 break; 833 } 834 /* FALLTHROUGH */ 835 } 836 case MTIOCSETEOTMODEL: 837 /* 838 * We need to acquire the peripheral here rather 839 * than at open time because we are sharing writable 840 * access to data structures. 841 */ 842 s = splsoftcam(); 843 error = cam_periph_lock(periph, PRIBIO|PCATCH); 844 if (error != 0) { 845 splx(s); 846 return (error); 847 } 848 didlockperiph = 1; 849 break; 850 851 default: 852 return (EINVAL); 853 } 854 } 855 856 /* 857 * Find the device that the user is talking about 858 */ 859 switch (cmd) { 860 case MTIOCGET: 861 { 862 struct mtget *g = (struct mtget *)arg; 863 864 /* 865 * If this isn't the control mode device, actually go out 866 * and ask the drive again what it's set to. 867 */ 868 if (!SA_IS_CTRL(dev)) { 869 u_int8_t write_protect; 870 int comp_enabled, comp_supported; 871 error = sagetparams(periph, SA_PARAM_ALL, 872 &softc->media_blksize, &softc->media_density, 873 &softc->media_numblks, &softc->buffer_mode, 874 &write_protect, &softc->speed, &comp_supported, 875 &comp_enabled, &softc->comp_algorithm, NULL); 876 if (error) 877 break; 878 if (write_protect) 879 softc->flags |= SA_FLAG_TAPE_WP; 880 else 881 softc->flags &= ~SA_FLAG_TAPE_WP; 882 softc->flags &= ~(SA_FLAG_COMP_SUPP| 883 SA_FLAG_COMP_ENABLED|SA_FLAG_COMP_UNSUPP); 884 if (comp_supported) { 885 if (softc->saved_comp_algorithm == 0) 886 softc->saved_comp_algorithm = 887 softc->comp_algorithm; 888 softc->flags |= SA_FLAG_COMP_SUPP; 889 if (comp_enabled) 890 softc->flags |= SA_FLAG_COMP_ENABLED; 891 } else 892 softc->flags |= SA_FLAG_COMP_UNSUPP; 893 } 894 bzero(g, sizeof(struct mtget)); 895 g->mt_type = MT_ISAR; 896 if (softc->flags & SA_FLAG_COMP_UNSUPP) { 897 g->mt_comp = MT_COMP_UNSUPP; 898 g->mt_comp0 = MT_COMP_UNSUPP; 899 g->mt_comp1 = MT_COMP_UNSUPP; 900 g->mt_comp2 = MT_COMP_UNSUPP; 901 g->mt_comp3 = MT_COMP_UNSUPP; 902 } else { 903 if ((softc->flags & SA_FLAG_COMP_ENABLED) == 0) { 904 g->mt_comp = MT_COMP_DISABLED; 905 } else { 906 g->mt_comp = softc->comp_algorithm; 907 } 908 g->mt_comp0 = softc->comp_algorithm; 909 g->mt_comp1 = softc->comp_algorithm; 910 g->mt_comp2 = softc->comp_algorithm; 911 g->mt_comp3 = softc->comp_algorithm; 912 } 913 g->mt_density = softc->media_density; 914 g->mt_density0 = softc->media_density; 915 g->mt_density1 = softc->media_density; 916 g->mt_density2 = softc->media_density; 917 g->mt_density3 = softc->media_density; 918 g->mt_blksiz = softc->media_blksize; 919 g->mt_blksiz0 = softc->media_blksize; 920 g->mt_blksiz1 = softc->media_blksize; 921 g->mt_blksiz2 = softc->media_blksize; 922 g->mt_blksiz3 = softc->media_blksize; 923 g->mt_fileno = softc->fileno; 924 g->mt_blkno = softc->blkno; 925 g->mt_dsreg = (short) softc->dsreg; 926 /* 927 * Yes, we know that this is likely to overflow 928 */ 929 if (softc->last_resid_was_io) { 930 if ((g->mt_resid = (short) softc->last_io_resid) != 0) { 931 if (SA_IS_CTRL(dev) == 0 || didlockperiph) { 932 softc->last_io_resid = 0; 933 } 934 } 935 } else { 936 if ((g->mt_resid = (short)softc->last_ctl_resid) != 0) { 937 if (SA_IS_CTRL(dev) == 0 || didlockperiph) { 938 softc->last_ctl_resid = 0; 939 } 940 } 941 } 942 error = 0; 943 break; 944 } 945 case MTIOCERRSTAT: 946 { 947 struct scsi_tape_errors *sep = 948 &((union mterrstat *)arg)->scsi_errstat; 949 950 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 951 ("saioctl: MTIOCERRSTAT\n")); 952 953 bzero(sep, sizeof(*sep)); 954 sep->io_resid = softc->last_io_resid; 955 bcopy((caddr_t) &softc->last_io_sense, sep->io_sense, 956 sizeof (sep->io_sense)); 957 bcopy((caddr_t) &softc->last_io_cdb, sep->io_cdb, 958 sizeof (sep->io_cdb)); 959 sep->ctl_resid = softc->last_ctl_resid; 960 bcopy((caddr_t) &softc->last_ctl_sense, sep->ctl_sense, 961 sizeof (sep->ctl_sense)); 962 bcopy((caddr_t) &softc->last_ctl_cdb, sep->ctl_cdb, 963 sizeof (sep->ctl_cdb)); 964 965 if (SA_IS_CTRL(dev) == 0 || didlockperiph) 966 bzero((caddr_t) &softc->errinfo, 967 sizeof (softc->errinfo)); 968 error = 0; 969 break; 970 } 971 case MTIOCTOP: 972 { 973 struct mtop *mt; 974 int count; 975 976 mt = (struct mtop *)arg; 977 978 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 979 ("saioctl: op=0x%x count=0x%x\n", 980 mt->mt_op, mt->mt_count)); 981 982 count = mt->mt_count; 983 switch (mt->mt_op) { 984 case MTWEOF: /* write an end-of-file marker */ 985 /* 986 * We don't need to clear the SA_FLAG_TAPE_WRITTEN 987 * flag because by keeping track of filemarks 988 * we have last written we know ehether or not 989 * we need to write more when we close the device. 990 */ 991 error = sawritefilemarks(periph, count, FALSE); 992 break; 993 case MTWSS: /* write a setmark */ 994 error = sawritefilemarks(periph, count, TRUE); 995 break; 996 case MTBSR: /* backward space record */ 997 case MTFSR: /* forward space record */ 998 case MTBSF: /* backward space file */ 999 case MTFSF: /* forward space file */ 1000 case MTBSS: /* backward space setmark */ 1001 case MTFSS: /* forward space setmark */ 1002 case MTEOD: /* space to end of recorded medium */ 1003 { 1004 int nmarks; 1005 1006 spaceop = SS_FILEMARKS; 1007 nmarks = softc->filemarks; 1008 error = sacheckeod(periph); 1009 if (error) { 1010 xpt_print_path(periph->path); 1011 printf("EOD check prior to spacing failed\n"); 1012 softc->flags |= SA_FLAG_EIO_PENDING; 1013 break; 1014 } 1015 nmarks -= softc->filemarks; 1016 switch(mt->mt_op) { 1017 case MTBSR: 1018 count = -count; 1019 /* FALLTHROUGH */ 1020 case MTFSR: 1021 spaceop = SS_BLOCKS; 1022 break; 1023 case MTBSF: 1024 count = -count; 1025 /* FALLTHROUGH */ 1026 case MTFSF: 1027 break; 1028 case MTBSS: 1029 count = -count; 1030 /* FALLTHROUGH */ 1031 case MTFSS: 1032 spaceop = SS_SETMARKS; 1033 break; 1034 case MTEOD: 1035 spaceop = SS_EOD; 1036 count = 0; 1037 nmarks = 0; 1038 break; 1039 default: 1040 error = EINVAL; 1041 break; 1042 } 1043 if (error) 1044 break; 1045 1046 nmarks = softc->filemarks; 1047 /* 1048 * XXX: Why are we checking again? 1049 */ 1050 error = sacheckeod(periph); 1051 if (error) 1052 break; 1053 nmarks -= softc->filemarks; 1054 error = saspace(periph, count - nmarks, spaceop); 1055 /* 1056 * At this point, clear that we've written the tape 1057 * and that we've written any filemarks. We really 1058 * don't know what the applications wishes to do next- 1059 * the sacheckeod's will make sure we terminated the 1060 * tape correctly if we'd been writing, but the next 1061 * action the user application takes will set again 1062 * whether we need to write filemarks. 1063 */ 1064 softc->flags &= 1065 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1066 softc->filemarks = 0; 1067 break; 1068 } 1069 case MTREW: /* rewind */ 1070 (void) sacheckeod(periph); 1071 error = sarewind(periph); 1072 /* see above */ 1073 softc->flags &= 1074 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1075 softc->flags &= ~SA_FLAG_ERR_PENDING; 1076 softc->filemarks = 0; 1077 break; 1078 case MTERASE: /* erase */ 1079 error = saerase(periph, count); 1080 softc->flags &= 1081 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1082 softc->flags &= ~SA_FLAG_ERR_PENDING; 1083 break; 1084 case MTRETENS: /* re-tension tape */ 1085 error = saretension(periph); 1086 softc->flags &= 1087 ~(SA_FLAG_TAPE_WRITTEN|SA_FLAG_TAPE_FROZEN); 1088 softc->flags &= ~SA_FLAG_ERR_PENDING; 1089 break; 1090 case MTOFFL: /* rewind and put the drive offline */ 1091 1092 (void) sacheckeod(periph); 1093 /* see above */ 1094 softc->flags &= ~SA_FLAG_TAPE_WRITTEN; 1095 softc->filemarks = 0; 1096 1097 error = sarewind(periph); 1098 /* clear the frozen flag anyway */ 1099 softc->flags &= ~SA_FLAG_TAPE_FROZEN; 1100 1101 /* 1102 * Be sure to allow media removal before ejecting. 1103 */ 1104 1105 saprevent(periph, PR_ALLOW); 1106 if (error == 0) { 1107 error = saloadunload(periph, FALSE); 1108 if (error == 0) { 1109 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 1110 } 1111 } 1112 break; 1113 1114 case MTNOP: /* no operation, sets status only */ 1115 case MTCACHE: /* enable controller cache */ 1116 case MTNOCACHE: /* disable controller cache */ 1117 error = 0; 1118 break; 1119 1120 case MTSETBSIZ: /* Set block size for device */ 1121 1122 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, count, 1123 0, 0, 0); 1124 if (error == 0) { 1125 softc->last_media_blksize = 1126 softc->media_blksize; 1127 softc->media_blksize = count; 1128 if (count) { 1129 softc->flags |= SA_FLAG_FIXED; 1130 if (powerof2(count)) { 1131 softc->blk_shift = 1132 ffs(count) - 1; 1133 softc->blk_mask = count - 1; 1134 } else { 1135 softc->blk_mask = ~0; 1136 softc->blk_shift = 0; 1137 } 1138 /* 1139 * Make the user's desire 'persistent'. 1140 */ 1141 softc->quirks &= ~SA_QUIRK_VARIABLE; 1142 softc->quirks |= SA_QUIRK_FIXED; 1143 } else { 1144 softc->flags &= ~SA_FLAG_FIXED; 1145 if (softc->max_blk == 0) { 1146 softc->max_blk = ~0; 1147 } 1148 softc->blk_shift = 0; 1149 if (softc->blk_gran != 0) { 1150 softc->blk_mask = 1151 softc->blk_gran - 1; 1152 } else { 1153 softc->blk_mask = 0; 1154 } 1155 /* 1156 * Make the user's desire 'persistent'. 1157 */ 1158 softc->quirks |= SA_QUIRK_VARIABLE; 1159 softc->quirks &= ~SA_QUIRK_FIXED; 1160 } 1161 } 1162 break; 1163 case MTSETDNSTY: /* Set density for device and mode */ 1164 if (count > UCHAR_MAX) { 1165 error = EINVAL; 1166 break; 1167 } else { 1168 error = sasetparams(periph, SA_PARAM_DENSITY, 1169 0, count, 0, 0); 1170 } 1171 break; 1172 case MTCOMP: /* enable compression */ 1173 /* 1174 * Some devices don't support compression, and 1175 * don't like it if you ask them for the 1176 * compression page. 1177 */ 1178 if ((softc->quirks & SA_QUIRK_NOCOMP) || 1179 (softc->flags & SA_FLAG_COMP_UNSUPP)) { 1180 error = ENODEV; 1181 break; 1182 } 1183 error = sasetparams(periph, SA_PARAM_COMPRESSION, 1184 0, 0, count, SF_NO_PRINT); 1185 break; 1186 default: 1187 error = EINVAL; 1188 } 1189 break; 1190 } 1191 case MTIOCIEOT: 1192 case MTIOCEEOT: 1193 error = 0; 1194 break; 1195 case MTIOCRDSPOS: 1196 error = sardpos(periph, 0, (u_int32_t *) arg); 1197 break; 1198 case MTIOCRDHPOS: 1199 error = sardpos(periph, 1, (u_int32_t *) arg); 1200 break; 1201 case MTIOCSLOCATE: 1202 error = sasetpos(periph, 0, (u_int32_t *) arg); 1203 break; 1204 case MTIOCHLOCATE: 1205 error = sasetpos(periph, 1, (u_int32_t *) arg); 1206 break; 1207 case MTIOCGETEOTMODEL: 1208 error = 0; 1209 if (softc->quirks & SA_QUIRK_1FM) 1210 mode = 1; 1211 else 1212 mode = 2; 1213 *((u_int32_t *) arg) = mode; 1214 break; 1215 case MTIOCSETEOTMODEL: 1216 error = 0; 1217 switch (*((u_int32_t *) arg)) { 1218 case 1: 1219 softc->quirks &= ~SA_QUIRK_2FM; 1220 softc->quirks |= SA_QUIRK_1FM; 1221 break; 1222 case 2: 1223 softc->quirks &= ~SA_QUIRK_1FM; 1224 softc->quirks |= SA_QUIRK_2FM; 1225 break; 1226 default: 1227 error = EINVAL; 1228 break; 1229 } 1230 break; 1231 default: 1232 error = cam_periph_ioctl(periph, cmd, arg, saerror); 1233 break; 1234 } 1235 1236 /* 1237 * Check to see if we cleared a frozen state 1238 */ 1239 if (error == 0 && (softc->flags & SA_FLAG_TAPE_FROZEN)) { 1240 switch(cmd) { 1241 case MTIOCRDSPOS: 1242 case MTIOCRDHPOS: 1243 case MTIOCSLOCATE: 1244 case MTIOCHLOCATE: 1245 softc->fileno = (daddr_t) -1; 1246 softc->blkno = (daddr_t) -1; 1247 softc->flags &= ~SA_FLAG_TAPE_FROZEN; 1248 xpt_print_path(periph->path); 1249 printf("tape state now unfrozen.\n"); 1250 break; 1251 default: 1252 break; 1253 } 1254 } 1255 if (didlockperiph) { 1256 cam_periph_unlock(periph); 1257 } 1258 return (error); 1259} 1260 1261static void 1262sainit(void) 1263{ 1264 cam_status status; 1265 struct cam_path *path; 1266 1267 /* 1268 * Install a global async callback. 1269 */ 1270 status = xpt_create_path(&path, NULL, CAM_XPT_PATH_ID, 1271 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 1272 1273 if (status == CAM_REQ_CMP) { 1274 /* Register the async callbacks of interrest */ 1275 struct ccb_setasync csa; /* 1276 * This is an immediate CCB, 1277 * so using the stack is OK 1278 */ 1279 xpt_setup_ccb(&csa.ccb_h, path, 5); 1280 csa.ccb_h.func_code = XPT_SASYNC_CB; 1281 csa.event_enable = AC_FOUND_DEVICE; 1282 csa.callback = saasync; 1283 csa.callback_arg = NULL; 1284 xpt_action((union ccb *)&csa); 1285 status = csa.ccb_h.status; 1286 xpt_free_path(path); 1287 } 1288 1289 if (status != CAM_REQ_CMP) { 1290 printf("sa: Failed to attach master async callback " 1291 "due to status 0x%x!\n", status); 1292 } 1293} 1294 1295static void 1296saoninvalidate(struct cam_periph *periph) 1297{ 1298 struct sa_softc *softc; 1299 struct ccb_setasync csa; 1300 int s; 1301 1302 softc = (struct sa_softc *)periph->softc; 1303 1304 /* 1305 * De-register any async callbacks. 1306 */ 1307 xpt_setup_ccb(&csa.ccb_h, periph->path, 1308 /* priority */ 5); 1309 csa.ccb_h.func_code = XPT_SASYNC_CB; 1310 csa.event_enable = 0; 1311 csa.callback = saasync; 1312 csa.callback_arg = periph; 1313 xpt_action((union ccb *)&csa); 1314 1315 softc->flags |= SA_FLAG_INVALID; 1316 1317 /* 1318 * Although the oninvalidate() routines are always called at 1319 * splsoftcam, we need to be at splbio() here to keep the buffer 1320 * queue from being modified while we traverse it. 1321 */ 1322 s = splbio(); 1323 1324 /* 1325 * Return all queued I/O with ENXIO. 1326 * XXX Handle any transactions queued to the card 1327 * with XPT_ABORT_CCB. 1328 */ 1329 bioq_flush(&softc->bio_queue, NULL, ENXIO); 1330 softc->queue_count = 0; 1331 splx(s); 1332 1333 xpt_print_path(periph->path); 1334 printf("lost device\n"); 1335 1336} 1337 1338static void 1339sacleanup(struct cam_periph *periph) 1340{ 1341 struct sa_softc *softc; 1342 int i; 1343 1344 softc = (struct sa_softc *)periph->softc; 1345 1346 devstat_remove_entry(softc->device_stats); 1347 1348 destroy_dev(softc->devs.ctl_dev); 1349 1350 for (i = 0; i < SA_NUM_MODES; i++) { 1351 destroy_dev(softc->devs.mode_devs[i].r_dev); 1352 destroy_dev(softc->devs.mode_devs[i].nr_dev); 1353 destroy_dev(softc->devs.mode_devs[i].er_dev); 1354 } 1355 1356 xpt_print_path(periph->path); 1357 printf("removing device entry\n");
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1425 if (softc == NULL) { 1426 printf("saregister: Unable to probe new device. " 1427 "Unable to allocate softc\n"); 1428 return (CAM_REQ_CMP_ERR); 1429 } 1430 softc->scsi_rev = SID_ANSI_REV(&cgd->inq_data); 1431 softc->state = SA_STATE_NORMAL; 1432 softc->fileno = (daddr_t) -1; 1433 softc->blkno = (daddr_t) -1; 1434 1435 bioq_init(&softc->bio_queue); 1436 periph->softc = softc; 1437 1438 /* 1439 * See if this device has any quirks. 1440 */ 1441 match = cam_quirkmatch((caddr_t)&cgd->inq_data, 1442 (caddr_t)sa_quirk_table, 1443 sizeof(sa_quirk_table)/sizeof(*sa_quirk_table), 1444 sizeof(*sa_quirk_table), scsi_inquiry_match); 1445 1446 if (match != NULL) { 1447 softc->quirks = ((struct sa_quirk_entry *)match)->quirks; 1448 softc->last_media_blksize = 1449 ((struct sa_quirk_entry *)match)->prefblk; 1450#ifdef CAMDEBUG 1451 xpt_print_path(periph->path); 1452 printf("found quirk entry %d\n", (int) 1453 (((struct sa_quirk_entry *) match) - sa_quirk_table)); 1454#endif 1455 } else 1456 softc->quirks = SA_QUIRK_NONE; 1457 1458 /* 1459 * The SA driver supports a blocksize, but we don't know the 1460 * blocksize until we media is inserted. So, set a flag to 1461 * indicate that the blocksize is unavailable right now. 1462 */ 1463 softc->device_stats = devstat_new_entry("sa", periph->unit_number, 0, 1464 DEVSTAT_BS_UNAVAILABLE, SID_TYPE(&cgd->inq_data) | 1465 DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_TAPE); 1466 1467 softc->devs.ctl_dev = make_dev(&sa_cdevsw, SAMINOR(SA_CTLDEV, 1468 periph->unit_number, 0, SA_ATYPE_R), UID_ROOT, GID_OPERATOR, 1469 0660, "%s%d.ctl", periph->periph_name, periph->unit_number); 1470 softc->devs.ctl_dev->si_drv1 = periph; 1471 1472 for (i = 0; i < SA_NUM_MODES; i++) { 1473 1474 softc->devs.mode_devs[i].r_dev = make_dev(&sa_cdevsw, 1475 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_R), 1476 UID_ROOT, GID_OPERATOR, 0660, "%s%d.%d", 1477 periph->periph_name, periph->unit_number, i); 1478 softc->devs.mode_devs[i].r_dev->si_drv1 = periph; 1479 1480 softc->devs.mode_devs[i].nr_dev = make_dev(&sa_cdevsw, 1481 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_NR), 1482 UID_ROOT, GID_OPERATOR, 0660, "n%s%d.%d", 1483 periph->periph_name, periph->unit_number, i); 1484 softc->devs.mode_devs[i].nr_dev->si_drv1 = periph; 1485 1486 softc->devs.mode_devs[i].er_dev = make_dev(&sa_cdevsw, 1487 SAMINOR(SA_NOT_CTLDEV, periph->unit_number, i, SA_ATYPE_ER), 1488 UID_ROOT, GID_OPERATOR, 0660, "e%s%d.%d", 1489 periph->periph_name, periph->unit_number, i); 1490 softc->devs.mode_devs[i].er_dev->si_drv1 = periph; 1491 1492 /* 1493 * Make the (well known) aliases for the first mode. 1494 */ 1495 if (i == 0) { 1496 struct cdev *alias; 1497 1498 alias = make_dev_alias(softc->devs.mode_devs[i].r_dev, 1499 "%s%d", periph->periph_name, periph->unit_number); 1500 alias->si_drv1 = periph; 1501 alias = make_dev_alias(softc->devs.mode_devs[i].nr_dev, 1502 "n%s%d", periph->periph_name, periph->unit_number); 1503 alias->si_drv1 = periph; 1504 alias = make_dev_alias(softc->devs.mode_devs[i].er_dev, 1505 "e%s%d", periph->periph_name, periph->unit_number); 1506 alias->si_drv1 = periph; 1507 } 1508 } 1509 1510 /* 1511 * Add an async callback so that we get 1512 * notified if this device goes away. 1513 */ 1514 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 1515 csa.ccb_h.func_code = XPT_SASYNC_CB; 1516 csa.event_enable = AC_LOST_DEVICE; 1517 csa.callback = saasync; 1518 csa.callback_arg = periph; 1519 xpt_action((union ccb *)&csa); 1520 1521 xpt_announce_periph(periph, NULL); 1522 1523 return (CAM_REQ_CMP); 1524} 1525 1526static void 1527sastart(struct cam_periph *periph, union ccb *start_ccb) 1528{ 1529 struct sa_softc *softc; 1530 1531 softc = (struct sa_softc *)periph->softc; 1532 1533 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("sastart\n")); 1534 1535 1536 switch (softc->state) { 1537 case SA_STATE_NORMAL: 1538 { 1539 /* Pull a buffer from the queue and get going on it */ 1540 struct bio *bp; 1541 int s; 1542 1543 /* 1544 * See if there is a buf with work for us to do.. 1545 */ 1546 s = splbio(); 1547 bp = bioq_first(&softc->bio_queue); 1548 if (periph->immediate_priority <= periph->pinfo.priority) { 1549 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 1550 ("queuing for immediate ccb\n")); 1551 Set_CCB_Type(start_ccb, SA_CCB_WAITING); 1552 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 1553 periph_links.sle); 1554 periph->immediate_priority = CAM_PRIORITY_NONE; 1555 splx(s); 1556 wakeup(&periph->ccb_list); 1557 } else if (bp == NULL) { 1558 splx(s); 1559 xpt_release_ccb(start_ccb); 1560 } else if ((softc->flags & SA_FLAG_ERR_PENDING) != 0) { 1561 struct bio *done_bp; 1562again: 1563 softc->queue_count--; 1564 bioq_remove(&softc->bio_queue, bp); 1565 bp->bio_resid = bp->bio_bcount; 1566 done_bp = bp; 1567 if ((softc->flags & SA_FLAG_EOM_PENDING) != 0) { 1568 /* 1569 * We now just clear errors in this case 1570 * and let the residual be the notifier. 1571 */ 1572 bp->bio_error = 0; 1573 } else if ((softc->flags & SA_FLAG_EOF_PENDING) != 0) { 1574 /* 1575 * This can only happen if we're reading 1576 * in fixed length mode. In this case, 1577 * we dump the rest of the list the 1578 * same way. 1579 */ 1580 bp->bio_error = 0; 1581 if (bioq_first(&softc->bio_queue) != NULL) { 1582 biodone(done_bp); 1583 goto again; 1584 } 1585 } else if ((softc->flags & SA_FLAG_EIO_PENDING) != 0) { 1586 bp->bio_error = EIO; 1587 bp->bio_flags |= BIO_ERROR; 1588 } 1589 bp = bioq_first(&softc->bio_queue); 1590 /* 1591 * Only if we have no other buffers queued up 1592 * do we clear the pending error flag. 1593 */ 1594 if (bp == NULL) 1595 softc->flags &= ~SA_FLAG_ERR_PENDING; 1596 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1597 ("sastart- ERR_PENDING now 0x%x, bp is %sNULL, " 1598 "%d more buffers queued up\n", 1599 (softc->flags & SA_FLAG_ERR_PENDING), 1600 (bp != NULL)? "not " : " ", softc->queue_count)); 1601 splx(s); 1602 xpt_release_ccb(start_ccb); 1603 biodone(done_bp); 1604 } else { 1605 u_int32_t length; 1606 1607 bioq_remove(&softc->bio_queue, bp); 1608 softc->queue_count--; 1609 1610 if ((softc->flags & SA_FLAG_FIXED) != 0) { 1611 if (softc->blk_shift != 0) { 1612 length = 1613 bp->bio_bcount >> softc->blk_shift; 1614 } else if (softc->media_blksize != 0) { 1615 length = bp->bio_bcount / 1616 softc->media_blksize; 1617 } else { 1618 bp->bio_error = EIO; 1619 xpt_print_path(periph->path); 1620 printf("zero blocksize for " 1621 "FIXED length writes?\n"); 1622 splx(s); 1623 biodone(bp); 1624 break; 1625 } 1626#if 0 1627 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 1628 ("issuing a %d fixed record %s\n", 1629 length, (bp->bio_cmd == BIO_READ)? "read" : 1630 "write")); 1631#endif 1632 } else { 1633 length = bp->bio_bcount; 1634#if 0 1635 CAM_DEBUG(start_ccb->ccb_h.path, CAM_DEBUG_INFO, 1636 ("issuing a %d variable byte %s\n", 1637 length, (bp->bio_cmd == BIO_READ)? "read" : 1638 "write")); 1639#endif 1640 } 1641 devstat_start_transaction_bio(softc->device_stats, bp); 1642 /* 1643 * Some people have theorized that we should 1644 * suppress illegal length indication if we are 1645 * running in variable block mode so that we don't 1646 * have to request sense every time our requested 1647 * block size is larger than the written block. 1648 * The residual information from the ccb allows 1649 * us to identify this situation anyway. The only 1650 * problem with this is that we will not get 1651 * information about blocks that are larger than 1652 * our read buffer unless we set the block size 1653 * in the mode page to something other than 0. 1654 * 1655 * I believe that this is a non-issue. If user apps 1656 * don't adjust their read size to match our record 1657 * size, that's just life. Anyway, the typical usage 1658 * would be to issue, e.g., 64KB reads and occasionally 1659 * have to do deal with 512 byte or 1KB intermediate 1660 * records. 1661 */ 1662 softc->dsreg = (bp->bio_cmd == BIO_READ)? 1663 MTIO_DSREG_RD : MTIO_DSREG_WR; 1664 scsi_sa_read_write(&start_ccb->csio, 0, sadone, 1665 MSG_SIMPLE_Q_TAG, (bp->bio_cmd == BIO_READ), 1666 FALSE, (softc->flags & SA_FLAG_FIXED) != 0, 1667 length, bp->bio_data, bp->bio_bcount, SSD_FULL_SIZE, 1668 IO_TIMEOUT); 1669 start_ccb->ccb_h.ccb_pflags &= ~SA_POSITION_UPDATED; 1670 Set_CCB_Type(start_ccb, SA_CCB_BUFFER_IO); 1671 start_ccb->ccb_h.ccb_bp = bp; 1672 bp = bioq_first(&softc->bio_queue); 1673 splx(s); 1674 xpt_action(start_ccb); 1675 } 1676 1677 if (bp != NULL) { 1678 /* Have more work to do, so ensure we stay scheduled */ 1679 xpt_schedule(periph, 1); 1680 } 1681 break; 1682 } 1683 case SA_STATE_ABNORMAL: 1684 default: 1685 panic("state 0x%x in sastart", softc->state); 1686 break; 1687 } 1688} 1689 1690 1691static void 1692sadone(struct cam_periph *periph, union ccb *done_ccb) 1693{ 1694 struct sa_softc *softc; 1695 struct ccb_scsiio *csio; 1696 1697 softc = (struct sa_softc *)periph->softc; 1698 csio = &done_ccb->csio; 1699 switch (CCB_Type(csio)) { 1700 case SA_CCB_BUFFER_IO: 1701 { 1702 struct bio *bp; 1703 int error; 1704 1705 softc->dsreg = MTIO_DSREG_REST; 1706 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1707 error = 0; 1708 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1709 if ((error = saerror(done_ccb, 0, 0)) == ERESTART) { 1710 /* 1711 * A retry was scheduled, so just return. 1712 */ 1713 return; 1714 } 1715 } 1716 1717 if (error == EIO) { 1718 int s; 1719 1720 /* 1721 * Catastrophic error. Mark the tape as frozen 1722 * (we no longer know tape position). 1723 * 1724 * Return all queued I/O with EIO, and unfreeze 1725 * our queue so that future transactions that 1726 * attempt to fix this problem can get to the 1727 * device. 1728 * 1729 */ 1730 1731 s = splbio(); 1732 softc->flags |= SA_FLAG_TAPE_FROZEN; 1733 bioq_flush(&softc->bio_queue, NULL, EIO); 1734 splx(s); 1735 } 1736 if (error != 0) { 1737 bp->bio_resid = bp->bio_bcount; 1738 bp->bio_error = error; 1739 bp->bio_flags |= BIO_ERROR; 1740 /* 1741 * In the error case, position is updated in saerror. 1742 */ 1743 } else { 1744 bp->bio_resid = csio->resid; 1745 bp->bio_error = 0; 1746 if (csio->resid != 0) { 1747 bp->bio_flags |= BIO_ERROR; 1748 } 1749 if (bp->bio_cmd == BIO_WRITE) { 1750 softc->flags |= SA_FLAG_TAPE_WRITTEN; 1751 softc->filemarks = 0; 1752 } 1753 if (!(csio->ccb_h.ccb_pflags & SA_POSITION_UPDATED) && 1754 (softc->blkno != (daddr_t) -1)) { 1755 if ((softc->flags & SA_FLAG_FIXED) != 0) { 1756 u_int32_t l; 1757 if (softc->blk_shift != 0) { 1758 l = bp->bio_bcount >> 1759 softc->blk_shift; 1760 } else { 1761 l = bp->bio_bcount / 1762 softc->media_blksize; 1763 } 1764 softc->blkno += (daddr_t) l; 1765 } else { 1766 softc->blkno++; 1767 } 1768 } 1769 } 1770 /* 1771 * If we had an error (immediate or pending), 1772 * release the device queue now. 1773 */ 1774 if (error || (softc->flags & SA_FLAG_ERR_PENDING)) 1775 cam_release_devq(done_ccb->ccb_h.path, 0, 0, 0, 0); 1776#ifdef CAMDEBUG 1777 if (error || bp->bio_resid) { 1778 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 1779 ("error %d resid %ld count %ld\n", error, 1780 bp->bio_resid, bp->bio_bcount)); 1781 } 1782#endif 1783 biofinish(bp, softc->device_stats, 0); 1784 break; 1785 } 1786 case SA_CCB_WAITING: 1787 { 1788 /* Caller will release the CCB */ 1789 wakeup(&done_ccb->ccb_h.cbfcnp); 1790 return; 1791 } 1792 } 1793 xpt_release_ccb(done_ccb); 1794} 1795 1796/* 1797 * Mount the tape (make sure it's ready for I/O). 1798 */ 1799static int 1800samount(struct cam_periph *periph, int oflags, struct cdev *dev) 1801{ 1802 struct sa_softc *softc; 1803 union ccb *ccb; 1804 int error; 1805 1806 /* 1807 * oflags can be checked for 'kind' of open (read-only check) - later 1808 * dev can be checked for a control-mode or compression open - later 1809 */ 1810 UNUSED_PARAMETER(oflags); 1811 UNUSED_PARAMETER(dev); 1812 1813 1814 softc = (struct sa_softc *)periph->softc; 1815 1816 /* 1817 * This should determine if something has happend since the last 1818 * open/mount that would invalidate the mount. We do *not* want 1819 * to retry this command- we just want the status. But we only 1820 * do this if we're mounted already- if we're not mounted, 1821 * we don't care about the unit read state and can instead use 1822 * this opportunity to attempt to reserve the tape unit. 1823 */ 1824 1825 if (softc->flags & SA_FLAG_TAPE_MOUNTED) { 1826 ccb = cam_periph_getccb(periph, 1); 1827 scsi_test_unit_ready(&ccb->csio, 0, sadone, 1828 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 1829 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 1830 softc->device_stats); 1831 QFRLS(ccb); 1832 if (error == ENXIO) { 1833 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 1834 scsi_test_unit_ready(&ccb->csio, 0, sadone, 1835 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 1836 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 1837 softc->device_stats); 1838 QFRLS(ccb); 1839 } else if (error) { 1840 /* 1841 * We don't need to freeze the tape because we 1842 * will now attempt to rewind/load it. 1843 */ 1844 softc->flags &= ~SA_FLAG_TAPE_MOUNTED; 1845 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 1846 xpt_print_path(periph->path); 1847 printf("error %d on TUR in samount\n", error); 1848 } 1849 } 1850 } else { 1851 error = sareservereleaseunit(periph, TRUE); 1852 if (error) { 1853 return (error); 1854 } 1855 ccb = cam_periph_getccb(periph, 1); 1856 scsi_test_unit_ready(&ccb->csio, 0, sadone, 1857 MSG_SIMPLE_Q_TAG, SSD_FULL_SIZE, IO_TIMEOUT); 1858 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 1859 softc->device_stats); 1860 QFRLS(ccb); 1861 } 1862 1863 if ((softc->flags & SA_FLAG_TAPE_MOUNTED) == 0) { 1864 struct scsi_read_block_limits_data *rblim = NULL; 1865 int comp_enabled, comp_supported; 1866 u_int8_t write_protect, guessing = 0; 1867 1868 /* 1869 * Clear out old state. 1870 */ 1871 softc->flags &= ~(SA_FLAG_TAPE_WP|SA_FLAG_TAPE_WRITTEN| 1872 SA_FLAG_ERR_PENDING|SA_FLAG_COMP_ENABLED| 1873 SA_FLAG_COMP_SUPP|SA_FLAG_COMP_UNSUPP); 1874 softc->filemarks = 0; 1875 1876 /* 1877 * *Very* first off, make sure we're loaded to BOT. 1878 */ 1879 scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, 1880 FALSE, FALSE, 1, SSD_FULL_SIZE, REWIND_TIMEOUT); 1881 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 1882 softc->device_stats); 1883 QFRLS(ccb); 1884 1885 /* 1886 * In case this doesn't work, do a REWIND instead 1887 */ 1888 if (error) { 1889 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, 1890 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); 1891 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 1892 softc->device_stats); 1893 QFRLS(ccb); 1894 } 1895 if (error) { 1896 xpt_release_ccb(ccb); 1897 goto exit; 1898 } 1899 1900 /* 1901 * Do a dummy test read to force access to the 1902 * media so that the drive will really know what's 1903 * there. We actually don't really care what the 1904 * blocksize on tape is and don't expect to really 1905 * read a full record. 1906 */ 1907 rblim = (struct scsi_read_block_limits_data *) 1908 malloc(8192, M_TEMP, M_WAITOK); 1909 if (rblim == NULL) { 1910 xpt_print_path(periph->path); 1911 printf("no memory for test read\n"); 1912 xpt_release_ccb(ccb); 1913 error = ENOMEM; 1914 goto exit; 1915 } 1916 1917 if ((softc->quirks & SA_QUIRK_NODREAD) == 0) { 1918 scsi_sa_read_write(&ccb->csio, 0, sadone, 1919 MSG_SIMPLE_Q_TAG, 1, FALSE, 0, 8192, 1920 (void *) rblim, 8192, SSD_FULL_SIZE, 1921 IO_TIMEOUT); 1922 (void) cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 1923 softc->device_stats); 1924 QFRLS(ccb); 1925 scsi_rewind(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, 1926 FALSE, SSD_FULL_SIZE, REWIND_TIMEOUT); 1927 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, 1928 SF_NO_PRINT | SF_RETRY_UA, 1929 softc->device_stats); 1930 QFRLS(ccb); 1931 if (error) { 1932 xpt_print_path(periph->path); 1933 printf("unable to rewind after test read\n"); 1934 xpt_release_ccb(ccb); 1935 goto exit; 1936 } 1937 } 1938 1939 /* 1940 * Next off, determine block limits. 1941 */ 1942 scsi_read_block_limits(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, 1943 rblim, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 1944 1945 error = cam_periph_runccb(ccb, saerror, CAM_RETRY_SELTO, 1946 SF_NO_PRINT | SF_RETRY_UA, softc->device_stats); 1947 1948 QFRLS(ccb); 1949 xpt_release_ccb(ccb); 1950 1951 if (error != 0) { 1952 /* 1953 * If it's less than SCSI-2, READ BLOCK LIMITS is not 1954 * a MANDATORY command. Anyway- it doesn't matter- 1955 * we can proceed anyway. 1956 */ 1957 softc->blk_gran = 0; 1958 softc->max_blk = ~0; 1959 softc->min_blk = 0; 1960 } else { 1961 if (softc->scsi_rev >= SCSI_REV_SPC) { 1962 softc->blk_gran = RBL_GRAN(rblim); 1963 } else { 1964 softc->blk_gran = 0; 1965 } 1966 /* 1967 * We take max_blk == min_blk to mean a default to 1968 * fixed mode- but note that whatever we get out of 1969 * sagetparams below will actually determine whether 1970 * we are actually *in* fixed mode. 1971 */ 1972 softc->max_blk = scsi_3btoul(rblim->maximum); 1973 softc->min_blk = scsi_2btoul(rblim->minimum); 1974 1975 1976 } 1977 /* 1978 * Next, perform a mode sense to determine 1979 * current density, blocksize, compression etc. 1980 */ 1981 error = sagetparams(periph, SA_PARAM_ALL, 1982 &softc->media_blksize, 1983 &softc->media_density, 1984 &softc->media_numblks, 1985 &softc->buffer_mode, &write_protect, 1986 &softc->speed, &comp_supported, 1987 &comp_enabled, &softc->comp_algorithm, 1988 NULL); 1989 1990 if (error != 0) { 1991 /* 1992 * We could work a little harder here. We could 1993 * adjust our attempts to get information. It 1994 * might be an ancient tape drive. If someone 1995 * nudges us, we'll do that. 1996 */ 1997 goto exit; 1998 } 1999 2000 /* 2001 * If no quirk has determined that this is a device that is 2002 * preferred to be in fixed or variable mode, now is the time 2003 * to find out. 2004 */ 2005 if ((softc->quirks & (SA_QUIRK_FIXED|SA_QUIRK_VARIABLE)) == 0) { 2006 guessing = 1; 2007 /* 2008 * This could be expensive to find out. Luckily we 2009 * only need to do this once. If we start out in 2010 * 'default' mode, try and set ourselves to one 2011 * of the densities that would determine a wad 2012 * of other stuff. Go from highest to lowest. 2013 */ 2014 if (softc->media_density == SCSI_DEFAULT_DENSITY) { 2015 int i; 2016 static u_int8_t ctry[] = { 2017 SCSI_DENSITY_HALFINCH_PE, 2018 SCSI_DENSITY_HALFINCH_6250C, 2019 SCSI_DENSITY_HALFINCH_6250, 2020 SCSI_DENSITY_HALFINCH_1600, 2021 SCSI_DENSITY_HALFINCH_800, 2022 SCSI_DENSITY_QIC_4GB, 2023 SCSI_DENSITY_QIC_2GB, 2024 SCSI_DENSITY_QIC_525_320, 2025 SCSI_DENSITY_QIC_150, 2026 SCSI_DENSITY_QIC_120, 2027 SCSI_DENSITY_QIC_24, 2028 SCSI_DENSITY_QIC_11_9TRK, 2029 SCSI_DENSITY_QIC_11_4TRK, 2030 SCSI_DENSITY_QIC_1320, 2031 SCSI_DENSITY_QIC_3080, 2032 0 2033 }; 2034 for (i = 0; ctry[i]; i++) { 2035 error = sasetparams(periph, 2036 SA_PARAM_DENSITY, 0, ctry[i], 2037 0, SF_NO_PRINT); 2038 if (error == 0) { 2039 softc->media_density = ctry[i]; 2040 break; 2041 } 2042 } 2043 } 2044 switch (softc->media_density) { 2045 case SCSI_DENSITY_QIC_11_4TRK: 2046 case SCSI_DENSITY_QIC_11_9TRK: 2047 case SCSI_DENSITY_QIC_24: 2048 case SCSI_DENSITY_QIC_120: 2049 case SCSI_DENSITY_QIC_150: 2050 case SCSI_DENSITY_QIC_525_320: 2051 case SCSI_DENSITY_QIC_1320: 2052 case SCSI_DENSITY_QIC_3080: 2053 softc->quirks &= ~SA_QUIRK_2FM; 2054 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; 2055 softc->last_media_blksize = 512; 2056 break; 2057 case SCSI_DENSITY_QIC_4GB: 2058 case SCSI_DENSITY_QIC_2GB: 2059 softc->quirks &= ~SA_QUIRK_2FM; 2060 softc->quirks |= SA_QUIRK_FIXED|SA_QUIRK_1FM; 2061 softc->last_media_blksize = 1024; 2062 break; 2063 default: 2064 softc->last_media_blksize = 2065 softc->media_blksize; 2066 softc->quirks |= SA_QUIRK_VARIABLE; 2067 break; 2068 } 2069 } 2070 2071 /* 2072 * If no quirk has determined that this is a device that needs 2073 * to have 2 Filemarks at EOD, now is the time to find out. 2074 */ 2075 2076 if ((softc->quirks & SA_QUIRK_2FM) == 0) { 2077 switch (softc->media_density) { 2078 case SCSI_DENSITY_HALFINCH_800: 2079 case SCSI_DENSITY_HALFINCH_1600: 2080 case SCSI_DENSITY_HALFINCH_6250: 2081 case SCSI_DENSITY_HALFINCH_6250C: 2082 case SCSI_DENSITY_HALFINCH_PE: 2083 softc->quirks &= ~SA_QUIRK_1FM; 2084 softc->quirks |= SA_QUIRK_2FM; 2085 break; 2086 default: 2087 break; 2088 } 2089 } 2090 2091 /* 2092 * Now validate that some info we got makes sense. 2093 */ 2094 if ((softc->max_blk < softc->media_blksize) || 2095 (softc->min_blk > softc->media_blksize && 2096 softc->media_blksize)) { 2097 xpt_print_path(periph->path); 2098 printf("BLOCK LIMITS (%d..%d) could not match current " 2099 "block settings (%d)- adjusting\n", softc->min_blk, 2100 softc->max_blk, softc->media_blksize); 2101 softc->max_blk = softc->min_blk = 2102 softc->media_blksize; 2103 } 2104 2105 /* 2106 * Now put ourselves into the right frame of mind based 2107 * upon quirks... 2108 */ 2109tryagain: 2110 /* 2111 * If we want to be in FIXED mode and our current blocksize 2112 * is not equal to our last blocksize (if nonzero), try and 2113 * set ourselves to this last blocksize (as the 'preferred' 2114 * block size). The initial quirkmatch at registry sets the 2115 * initial 'last' blocksize. If, for whatever reason, this 2116 * 'last' blocksize is zero, set the blocksize to 512, 2117 * or min_blk if that's larger. 2118 */ 2119 if ((softc->quirks & SA_QUIRK_FIXED) && 2120 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0 && 2121 (softc->media_blksize != softc->last_media_blksize)) { 2122 softc->media_blksize = softc->last_media_blksize; 2123 if (softc->media_blksize == 0) { 2124 softc->media_blksize = 512; 2125 if (softc->media_blksize < softc->min_blk) { 2126 softc->media_blksize = softc->min_blk; 2127 } 2128 } 2129 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 2130 softc->media_blksize, 0, 0, SF_NO_PRINT); 2131 if (error) { 2132 xpt_print_path(periph->path); 2133 printf("unable to set fixed blocksize to %d\n", 2134 softc->media_blksize); 2135 goto exit; 2136 } 2137 } 2138 2139 if ((softc->quirks & SA_QUIRK_VARIABLE) && 2140 (softc->media_blksize != 0)) { 2141 softc->last_media_blksize = softc->media_blksize; 2142 softc->media_blksize = 0; 2143 error = sasetparams(periph, SA_PARAM_BLOCKSIZE, 2144 0, 0, 0, SF_NO_PRINT); 2145 if (error) { 2146 /* 2147 * If this fails and we were guessing, just 2148 * assume that we got it wrong and go try 2149 * fixed block mode. Don't even check against 2150 * density code at this point. 2151 */ 2152 if (guessing) { 2153 softc->quirks &= ~SA_QUIRK_VARIABLE; 2154 softc->quirks |= SA_QUIRK_FIXED; 2155 if (softc->last_media_blksize == 0) 2156 softc->last_media_blksize = 512; 2157 goto tryagain; 2158 } 2159 xpt_print_path(periph->path); 2160 printf("unable to set variable blocksize\n"); 2161 goto exit; 2162 } 2163 } 2164 2165 /* 2166 * Now that we have the current block size, 2167 * set up some parameters for sastart's usage. 2168 */ 2169 if (softc->media_blksize) { 2170 softc->flags |= SA_FLAG_FIXED; 2171 if (powerof2(softc->media_blksize)) { 2172 softc->blk_shift = 2173 ffs(softc->media_blksize) - 1; 2174 softc->blk_mask = softc->media_blksize - 1; 2175 } else { 2176 softc->blk_mask = ~0; 2177 softc->blk_shift = 0; 2178 } 2179 } else { 2180 /* 2181 * The SCSI-3 spec allows 0 to mean "unspecified". 2182 * The SCSI-1 spec allows 0 to mean 'infinite'. 2183 * 2184 * Either works here. 2185 */ 2186 if (softc->max_blk == 0) { 2187 softc->max_blk = ~0; 2188 } 2189 softc->blk_shift = 0; 2190 if (softc->blk_gran != 0) { 2191 softc->blk_mask = softc->blk_gran - 1; 2192 } else { 2193 softc->blk_mask = 0; 2194 } 2195 } 2196 2197 if (write_protect) 2198 softc->flags |= SA_FLAG_TAPE_WP; 2199 2200 if (comp_supported) { 2201 if (softc->saved_comp_algorithm == 0) 2202 softc->saved_comp_algorithm = 2203 softc->comp_algorithm; 2204 softc->flags |= SA_FLAG_COMP_SUPP; 2205 if (comp_enabled) 2206 softc->flags |= SA_FLAG_COMP_ENABLED; 2207 } else 2208 softc->flags |= SA_FLAG_COMP_UNSUPP; 2209 2210 if ((softc->buffer_mode == SMH_SA_BUF_MODE_NOBUF) && 2211 (softc->quirks & SA_QUIRK_NO_MODESEL) == 0) { 2212 error = sasetparams(periph, SA_PARAM_BUFF_MODE, 0, 2213 0, 0, SF_NO_PRINT); 2214 if (error == 0) { 2215 softc->buffer_mode = SMH_SA_BUF_MODE_SIBUF; 2216 } else { 2217 xpt_print_path(periph->path); 2218 printf("unable to set buffered mode\n"); 2219 } 2220 error = 0; /* not an error */ 2221 } 2222 2223 2224 if (error == 0) { 2225 softc->flags |= SA_FLAG_TAPE_MOUNTED; 2226 } 2227exit: 2228 if (rblim != NULL) 2229 free(rblim, M_TEMP); 2230 2231 if (error != 0) { 2232 softc->dsreg = MTIO_DSREG_NIL; 2233 } else { 2234 softc->fileno = softc->blkno = 0; 2235 softc->dsreg = MTIO_DSREG_REST; 2236 } 2237#ifdef SA_1FM_AT_EOD 2238 if ((softc->quirks & SA_QUIRK_2FM) == 0) 2239 softc->quirks |= SA_QUIRK_1FM; 2240#else 2241 if ((softc->quirks & SA_QUIRK_1FM) == 0) 2242 softc->quirks |= SA_QUIRK_2FM; 2243#endif 2244 } else 2245 xpt_release_ccb(ccb); 2246 2247 /* 2248 * If we return an error, we're not mounted any more, 2249 * so release any device reservation. 2250 */ 2251 if (error != 0) { 2252 (void) sareservereleaseunit(periph, FALSE); 2253 } else { 2254 /* 2255 * Clear I/O residual. 2256 */ 2257 softc->last_io_resid = 0; 2258 softc->last_ctl_resid = 0; 2259 } 2260 return (error); 2261} 2262 2263/* 2264 * How many filemarks do we need to write if we were to terminate the 2265 * tape session right now? Note that this can be a negative number 2266 */ 2267 2268static int 2269samarkswanted(struct cam_periph *periph) 2270{ 2271 int markswanted; 2272 struct sa_softc *softc; 2273 2274 softc = (struct sa_softc *)periph->softc; 2275 markswanted = 0; 2276 if ((softc->flags & SA_FLAG_TAPE_WRITTEN) != 0) { 2277 markswanted++; 2278 if (softc->quirks & SA_QUIRK_2FM) 2279 markswanted++; 2280 } 2281 markswanted -= softc->filemarks; 2282 return (markswanted); 2283} 2284 2285static int 2286sacheckeod(struct cam_periph *periph) 2287{ 2288 int error; 2289 int markswanted; 2290 2291 markswanted = samarkswanted(periph); 2292 2293 if (markswanted > 0) { 2294 error = sawritefilemarks(periph, markswanted, FALSE); 2295 } else { 2296 error = 0; 2297 } 2298 return (error); 2299} 2300 2301static int 2302saerror(union ccb *ccb, u_int32_t cflgs, u_int32_t sflgs) 2303{ 2304 static const char *toobig = 2305 "%d-byte tape record bigger than supplied buffer\n"; 2306 struct cam_periph *periph; 2307 struct sa_softc *softc; 2308 struct ccb_scsiio *csio; 2309 struct scsi_sense_data *sense; 2310 u_int32_t resid = 0; 2311 int32_t info = 0; 2312 cam_status status; 2313 int error_code, sense_key, asc, ascq, error, aqvalid; 2314 2315 periph = xpt_path_periph(ccb->ccb_h.path); 2316 softc = (struct sa_softc *)periph->softc; 2317 csio = &ccb->csio; 2318 sense = &csio->sense_data; 2319 scsi_extract_sense(sense, &error_code, &sense_key, &asc, &ascq); 2320 aqvalid = sense->extra_len >= 6; 2321 error = 0; 2322 2323 status = csio->ccb_h.status & CAM_STATUS_MASK; 2324 2325 /* 2326 * Calculate/latch up, any residuals... We do this in a funny 2-step 2327 * so we can print stuff here if we have CAM_DEBUG enabled for this 2328 * unit. 2329 */ 2330 if (status == CAM_SCSI_STATUS_ERROR) { 2331 if ((sense->error_code & SSD_ERRCODE_VALID) != 0) { 2332 info = (int32_t) scsi_4btoul(sense->info); 2333 resid = info; 2334 if ((softc->flags & SA_FLAG_FIXED) != 0) 2335 resid *= softc->media_blksize; 2336 } else { 2337 resid = csio->dxfer_len; 2338 info = resid; 2339 if ((softc->flags & SA_FLAG_FIXED) != 0) { 2340 if (softc->media_blksize) 2341 info /= softc->media_blksize; 2342 } 2343 } 2344 if (CCB_Type(csio) == SA_CCB_BUFFER_IO) { 2345 bcopy((caddr_t) sense, (caddr_t) &softc->last_io_sense, 2346 sizeof (struct scsi_sense_data)); 2347 bcopy(csio->cdb_io.cdb_bytes, softc->last_io_cdb, 2348 (int) csio->cdb_len); 2349 softc->last_io_resid = resid; 2350 softc->last_resid_was_io = 1; 2351 } else { 2352 bcopy((caddr_t) sense, (caddr_t) &softc->last_ctl_sense, 2353 sizeof (struct scsi_sense_data)); 2354 bcopy(csio->cdb_io.cdb_bytes, softc->last_ctl_cdb, 2355 (int) csio->cdb_len); 2356 softc->last_ctl_resid = resid; 2357 softc->last_resid_was_io = 0; 2358 } 2359 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, ("CDB[0]=0x%x Key 0x%x " 2360 "ASC/ASCQ 0x%x/0x%x CAM STATUS 0x%x flags 0x%x resid %d " 2361 "dxfer_len %d\n", csio->cdb_io.cdb_bytes[0] & 0xff, 2362 sense_key, asc, ascq, status, 2363 sense->flags & ~SSD_KEY_RESERVED, resid, csio->dxfer_len)); 2364 } else { 2365 CAM_DEBUG(periph->path, CAM_DEBUG_INFO, 2366 ("Cam Status 0x%x\n", status)); 2367 } 2368 2369 switch (status) { 2370 case CAM_REQ_CMP: 2371 return (0); 2372 case CAM_SCSI_STATUS_ERROR: 2373 /* 2374 * If a read/write command, we handle it here. 2375 */ 2376 if (CCB_Type(csio) != SA_CCB_WAITING) { 2377 break; 2378 } 2379 /* 2380 * If this was just EOM/EOP, Filemark, Setmark or ILI detected 2381 * on a non read/write command, we assume it's not an error 2382 * and propagate the residule and return. 2383 */ 2384 if ((aqvalid && asc == 0 && ascq > 0 && ascq <= 5) || 2385 (aqvalid == 0 && sense_key == SSD_KEY_NO_SENSE)) { 2386 csio->resid = resid; 2387 QFRLS(ccb); 2388 return (0); 2389 } 2390 /* 2391 * Otherwise, we let the common code handle this. 2392 */ 2393 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); 2394 2395 /* 2396 * XXX: To Be Fixed 2397 * We cannot depend upon CAM honoring retry counts for these. 2398 */ 2399 case CAM_SCSI_BUS_RESET: 2400 case CAM_BDR_SENT: 2401 if (ccb->ccb_h.retry_count <= 0) { 2402 return (EIO); 2403 } 2404 /* FALLTHROUGH */ 2405 default: 2406 return (cam_periph_error(ccb, cflgs, sflgs, &softc->saved_ccb)); 2407 } 2408 2409 /* 2410 * Handle filemark, end of tape, mismatched record sizes.... 2411 * From this point out, we're only handling read/write cases. 2412 * Handle writes && reads differently. 2413 */ 2414 2415 if (csio->cdb_io.cdb_bytes[0] == SA_WRITE) { 2416 if (sense_key == SSD_KEY_VOLUME_OVERFLOW) { 2417 csio->resid = resid; 2418 error = ENOSPC; 2419 } else if (sense->flags & SSD_EOM) { 2420 softc->flags |= SA_FLAG_EOM_PENDING; 2421 /* 2422 * Grotesque as it seems, the few times 2423 * I've actually seen a non-zero resid, 2424 * the tape drive actually lied and had 2425 * written all the data!. 2426 */ 2427 csio->resid = 0; 2428 } 2429 } else { 2430 csio->resid = resid; 2431 if (sense_key == SSD_KEY_BLANK_CHECK) { 2432 if (softc->quirks & SA_QUIRK_1FM) { 2433 error = 0; 2434 softc->flags |= SA_FLAG_EOM_PENDING; 2435 } else { 2436 error = EIO; 2437 } 2438 } else if (sense->flags & SSD_FILEMARK) { 2439 if (softc->flags & SA_FLAG_FIXED) { 2440 error = -1; 2441 softc->flags |= SA_FLAG_EOF_PENDING; 2442 } 2443 /* 2444 * Unconditionally, if we detected a filemark on a read, 2445 * mark that we've run moved a file ahead. 2446 */ 2447 if (softc->fileno != (daddr_t) -1) { 2448 softc->fileno++; 2449 softc->blkno = 0; 2450 csio->ccb_h.ccb_pflags |= SA_POSITION_UPDATED; 2451 } 2452 } 2453 } 2454 2455 /* 2456 * Incorrect Length usually applies to read, but can apply to writes. 2457 */ 2458 if (error == 0 && (sense->flags & SSD_ILI)) { 2459 if (info < 0) { 2460 xpt_print_path(csio->ccb_h.path); 2461 printf(toobig, csio->dxfer_len - info); 2462 csio->resid = csio->dxfer_len; 2463 error = EIO; 2464 } else { 2465 csio->resid = resid; 2466 if (softc->flags & SA_FLAG_FIXED) { 2467 softc->flags |= SA_FLAG_EIO_PENDING; 2468 } 2469 /* 2470 * Bump the block number if we hadn't seen a filemark. 2471 * Do this independent of errors (we've moved anyway). 2472 */ 2473 if ((sense->flags & SSD_FILEMARK) == 0) { 2474 if (softc->blkno != (daddr_t) -1) { 2475 softc->blkno++; 2476 csio->ccb_h.ccb_pflags |= 2477 SA_POSITION_UPDATED; 2478 } 2479 } 2480 } 2481 } 2482 2483 if (error <= 0) { 2484 /* 2485 * Unfreeze the queue if frozen as we're not returning anything 2486 * to our waiters that would indicate an I/O error has occurred 2487 * (yet). 2488 */ 2489 QFRLS(ccb); 2490 error = 0; 2491 } 2492 return (error); 2493} 2494 2495static int 2496sagetparams(struct cam_periph *periph, sa_params params_to_get, 2497 u_int32_t *blocksize, u_int8_t *density, u_int32_t *numblocks, 2498 int *buff_mode, u_int8_t *write_protect, u_int8_t *speed, 2499 int *comp_supported, int *comp_enabled, u_int32_t *comp_algorithm, 2500 sa_comp_t *tcs) 2501{ 2502 union ccb *ccb; 2503 void *mode_buffer; 2504 struct scsi_mode_header_6 *mode_hdr; 2505 struct scsi_mode_blk_desc *mode_blk; 2506 int mode_buffer_len; 2507 struct sa_softc *softc; 2508 u_int8_t cpage; 2509 int error; 2510 cam_status status; 2511 2512 softc = (struct sa_softc *)periph->softc; 2513 ccb = cam_periph_getccb(periph, 1); 2514 if (softc->quirks & SA_QUIRK_NO_CPAGE) 2515 cpage = SA_DEVICE_CONFIGURATION_PAGE; 2516 else 2517 cpage = SA_DATA_COMPRESSION_PAGE; 2518 2519retry: 2520 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); 2521 2522 if (params_to_get & SA_PARAM_COMPRESSION) { 2523 if (softc->quirks & SA_QUIRK_NOCOMP) { 2524 *comp_supported = FALSE; 2525 params_to_get &= ~SA_PARAM_COMPRESSION; 2526 } else 2527 mode_buffer_len += sizeof (sa_comp_t); 2528 } 2529 2530 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK | M_ZERO); 2531 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; 2532 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 2533 2534 /* it is safe to retry this */ 2535 scsi_mode_sense(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, 2536 SMS_PAGE_CTRL_CURRENT, (params_to_get & SA_PARAM_COMPRESSION) ? 2537 cpage : SMS_VENDOR_SPECIFIC_PAGE, mode_buffer, mode_buffer_len, 2538 SSD_FULL_SIZE, SCSIOP_TIMEOUT); 2539 2540 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2541 softc->device_stats); 2542 QFRLS(ccb); 2543 2544 status = ccb->ccb_h.status & CAM_STATUS_MASK; 2545 2546 if (error == EINVAL && (params_to_get & SA_PARAM_COMPRESSION) != 0) { 2547 /* 2548 * Hmm. Let's see if we can try another page... 2549 * If we've already done that, give up on compression 2550 * for this device and remember this for the future 2551 * and attempt the request without asking for compression 2552 * info. 2553 */ 2554 if (cpage == SA_DATA_COMPRESSION_PAGE) { 2555 cpage = SA_DEVICE_CONFIGURATION_PAGE; 2556 goto retry; 2557 } 2558 softc->quirks |= SA_QUIRK_NOCOMP; 2559 free(mode_buffer, M_TEMP); 2560 goto retry; 2561 } else if (status == CAM_SCSI_STATUS_ERROR) { 2562 /* Tell the user about the fatal error. */ 2563 scsi_sense_print(&ccb->csio); 2564 goto sagetparamsexit; 2565 } 2566 2567 /* 2568 * If the user only wants the compression information, and 2569 * the device doesn't send back the block descriptor, it's 2570 * no big deal. If the user wants more than just 2571 * compression, though, and the device doesn't pass back the 2572 * block descriptor, we need to send another mode sense to 2573 * get the block descriptor. 2574 */ 2575 if ((mode_hdr->blk_desc_len == 0) && 2576 (params_to_get & SA_PARAM_COMPRESSION) && 2577 (params_to_get & ~(SA_PARAM_COMPRESSION))) { 2578 2579 /* 2580 * Decrease the mode buffer length by the size of 2581 * the compression page, to make sure the data 2582 * there doesn't get overwritten. 2583 */ 2584 mode_buffer_len -= sizeof (sa_comp_t); 2585 2586 /* 2587 * Now move the compression page that we presumably 2588 * got back down the memory chunk a little bit so 2589 * it doesn't get spammed. 2590 */ 2591 bcopy(&mode_hdr[0], &mode_hdr[1], sizeof (sa_comp_t)); 2592 bzero(&mode_hdr[0], sizeof (mode_hdr[0])); 2593 2594 /* 2595 * Now, we issue another mode sense and just ask 2596 * for the block descriptor, etc. 2597 */ 2598 2599 scsi_mode_sense(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, 2600 SMS_PAGE_CTRL_CURRENT, SMS_VENDOR_SPECIFIC_PAGE, 2601 mode_buffer, mode_buffer_len, SSD_FULL_SIZE, 2602 SCSIOP_TIMEOUT); 2603 2604 error = cam_periph_runccb(ccb, saerror, 0, SF_NO_PRINT, 2605 softc->device_stats); 2606 QFRLS(ccb); 2607 2608 if (error != 0) 2609 goto sagetparamsexit; 2610 } 2611 2612 if (params_to_get & SA_PARAM_BLOCKSIZE) 2613 *blocksize = scsi_3btoul(mode_blk->blklen); 2614 2615 if (params_to_get & SA_PARAM_NUMBLOCKS) 2616 *numblocks = scsi_3btoul(mode_blk->nblocks); 2617 2618 if (params_to_get & SA_PARAM_BUFF_MODE) 2619 *buff_mode = mode_hdr->dev_spec & SMH_SA_BUF_MODE_MASK; 2620 2621 if (params_to_get & SA_PARAM_DENSITY) 2622 *density = mode_blk->density; 2623 2624 if (params_to_get & SA_PARAM_WP) 2625 *write_protect = (mode_hdr->dev_spec & SMH_SA_WP)? TRUE : FALSE; 2626 2627 if (params_to_get & SA_PARAM_SPEED) 2628 *speed = mode_hdr->dev_spec & SMH_SA_SPEED_MASK; 2629 2630 if (params_to_get & SA_PARAM_COMPRESSION) { 2631 sa_comp_t *ntcs = (sa_comp_t *) &mode_blk[1]; 2632 if (cpage == SA_DATA_COMPRESSION_PAGE) { 2633 struct scsi_data_compression_page *cp = &ntcs->dcomp; 2634 *comp_supported = 2635 (cp->dce_and_dcc & SA_DCP_DCC)? TRUE : FALSE; 2636 *comp_enabled = 2637 (cp->dce_and_dcc & SA_DCP_DCE)? TRUE : FALSE; 2638 *comp_algorithm = scsi_4btoul(cp->comp_algorithm); 2639 } else { 2640 struct scsi_dev_conf_page *cp = &ntcs->dconf; 2641 /* 2642 * We don't really know whether this device supports 2643 * Data Compression if the the algorithm field is 2644 * zero. Just say we do. 2645 */ 2646 *comp_supported = TRUE; 2647 *comp_enabled = 2648 (cp->sel_comp_alg != SA_COMP_NONE)? TRUE : FALSE; 2649 *comp_algorithm = cp->sel_comp_alg; 2650 } 2651 if (tcs != NULL) 2652 bcopy(ntcs, tcs, sizeof (sa_comp_t)); 2653 } 2654 2655 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 2656 int idx; 2657 char *xyz = mode_buffer; 2658 xpt_print_path(periph->path); 2659 printf("Mode Sense Data="); 2660 for (idx = 0; idx < mode_buffer_len; idx++) 2661 printf(" 0x%02x", xyz[idx] & 0xff); 2662 printf("\n"); 2663 } 2664 2665sagetparamsexit: 2666 2667 xpt_release_ccb(ccb); 2668 free(mode_buffer, M_TEMP); 2669 return (error); 2670} 2671 2672/* 2673 * The purpose of this function is to set one of four different parameters 2674 * for a tape drive: 2675 * - blocksize 2676 * - density 2677 * - compression / compression algorithm 2678 * - buffering mode 2679 * 2680 * The assumption is that this will be called from saioctl(), and therefore 2681 * from a process context. Thus the waiting malloc calls below. If that 2682 * assumption ever changes, the malloc calls should be changed to be 2683 * NOWAIT mallocs. 2684 * 2685 * Any or all of the four parameters may be set when this function is 2686 * called. It should handle setting more than one parameter at once. 2687 */ 2688static int 2689sasetparams(struct cam_periph *periph, sa_params params_to_set, 2690 u_int32_t blocksize, u_int8_t density, u_int32_t calg, 2691 u_int32_t sense_flags) 2692{ 2693 struct sa_softc *softc; 2694 u_int32_t current_blocksize; 2695 u_int32_t current_calg; 2696 u_int8_t current_density; 2697 u_int8_t current_speed; 2698 int comp_enabled, comp_supported; 2699 void *mode_buffer; 2700 int mode_buffer_len; 2701 struct scsi_mode_header_6 *mode_hdr; 2702 struct scsi_mode_blk_desc *mode_blk; 2703 sa_comp_t *ccomp, *cpage; 2704 int buff_mode; 2705 union ccb *ccb = NULL; 2706 int error; 2707 2708 softc = (struct sa_softc *)periph->softc; 2709 2710 ccomp = malloc(sizeof (sa_comp_t), M_TEMP, M_WAITOK); 2711 2712 /* 2713 * Since it doesn't make sense to set the number of blocks, or 2714 * write protection, we won't try to get the current value. We 2715 * always want to get the blocksize, so we can set it back to the 2716 * proper value. 2717 */ 2718 error = sagetparams(periph, 2719 params_to_set | SA_PARAM_BLOCKSIZE | SA_PARAM_SPEED, 2720 ¤t_blocksize, ¤t_density, NULL, &buff_mode, NULL, 2721 ¤t_speed, &comp_supported, &comp_enabled, 2722 ¤t_calg, ccomp); 2723 2724 if (error != 0) { 2725 free(ccomp, M_TEMP); 2726 return (error); 2727 } 2728 2729 mode_buffer_len = sizeof(*mode_hdr) + sizeof(*mode_blk); 2730 if (params_to_set & SA_PARAM_COMPRESSION) 2731 mode_buffer_len += sizeof (sa_comp_t); 2732 2733 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_WAITOK | M_ZERO); 2734 2735 mode_hdr = (struct scsi_mode_header_6 *)mode_buffer; 2736 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 2737 2738 ccb = cam_periph_getccb(periph, 1); 2739 2740retry: 2741 2742 if (params_to_set & SA_PARAM_COMPRESSION) { 2743 if (mode_blk) { 2744 cpage = (sa_comp_t *)&mode_blk[1]; 2745 } else { 2746 cpage = (sa_comp_t *)&mode_hdr[1]; 2747 } 2748 bcopy(ccomp, cpage, sizeof (sa_comp_t)); 2749 cpage->hdr.pagecode &= ~0x80; 2750 } else 2751 cpage = NULL; 2752 2753 /* 2754 * If the caller wants us to set the blocksize, use the one they 2755 * pass in. Otherwise, use the blocksize we got back from the 2756 * mode select above. 2757 */ 2758 if (mode_blk) { 2759 if (params_to_set & SA_PARAM_BLOCKSIZE) 2760 scsi_ulto3b(blocksize, mode_blk->blklen); 2761 else 2762 scsi_ulto3b(current_blocksize, mode_blk->blklen); 2763 2764 /* 2765 * Set density if requested, else preserve old density. 2766 * SCSI_SAME_DENSITY only applies to SCSI-2 or better 2767 * devices, else density we've latched up in our softc. 2768 */ 2769 if (params_to_set & SA_PARAM_DENSITY) { 2770 mode_blk->density = density; 2771 } else if (softc->scsi_rev > SCSI_REV_CCS) { 2772 mode_blk->density = SCSI_SAME_DENSITY; 2773 } else { 2774 mode_blk->density = softc->media_density; 2775 } 2776 } 2777 2778 /* 2779 * For mode selects, these two fields must be zero. 2780 */ 2781 mode_hdr->data_length = 0; 2782 mode_hdr->medium_type = 0; 2783 2784 /* set the speed to the current value */ 2785 mode_hdr->dev_spec = current_speed; 2786 2787 /* if set, set single-initiator buffering mode */ 2788 if (softc->buffer_mode == SMH_SA_BUF_MODE_SIBUF) { 2789 mode_hdr->dev_spec |= SMH_SA_BUF_MODE_SIBUF; 2790 } 2791 2792 if (mode_blk) 2793 mode_hdr->blk_desc_len = sizeof(struct scsi_mode_blk_desc); 2794 else 2795 mode_hdr->blk_desc_len = 0; 2796 2797 /* 2798 * First, if the user wants us to set the compression algorithm or 2799 * just turn compression on, check to make sure that this drive 2800 * supports compression. 2801 */ 2802 if (params_to_set & SA_PARAM_COMPRESSION) { 2803 /* 2804 * If the compression algorithm is 0, disable compression. 2805 * If the compression algorithm is non-zero, enable 2806 * compression and set the compression type to the 2807 * specified compression algorithm, unless the algorithm is 2808 * MT_COMP_ENABLE. In that case, we look at the 2809 * compression algorithm that is currently set and if it is 2810 * non-zero, we leave it as-is. If it is zero, and we have 2811 * saved a compression algorithm from a time when 2812 * compression was enabled before, set the compression to 2813 * the saved value. 2814 */ 2815 switch (ccomp->hdr.pagecode & ~0x80) { 2816 case SA_DEVICE_CONFIGURATION_PAGE: 2817 { 2818 struct scsi_dev_conf_page *dcp = &cpage->dconf; 2819 if (calg == 0) { 2820 dcp->sel_comp_alg = SA_COMP_NONE; 2821 break; 2822 } 2823 if (calg != MT_COMP_ENABLE) { 2824 dcp->sel_comp_alg = calg; 2825 } else if (dcp->sel_comp_alg == SA_COMP_NONE && 2826 softc->saved_comp_algorithm != 0) { 2827 dcp->sel_comp_alg = softc->saved_comp_algorithm; 2828 } 2829 break; 2830 } 2831 case SA_DATA_COMPRESSION_PAGE: 2832 if (ccomp->dcomp.dce_and_dcc & SA_DCP_DCC) { 2833 struct scsi_data_compression_page *dcp = &cpage->dcomp; 2834 if (calg == 0) { 2835 /* 2836 * Disable compression, but leave the 2837 * decompression and the capability bit 2838 * alone. 2839 */ 2840 dcp->dce_and_dcc = SA_DCP_DCC; 2841 dcp->dde_and_red |= SA_DCP_DDE; 2842 break; 2843 } 2844 /* enable compression && decompression */ 2845 dcp->dce_and_dcc = SA_DCP_DCE | SA_DCP_DCC; 2846 dcp->dde_and_red |= SA_DCP_DDE; 2847 /* 2848 * If there, use compression algorithm from caller. 2849 * Otherwise, if there's a saved compression algorithm 2850 * and there is no current algorithm, use the saved 2851 * algorithm. Else parrot back what we got and hope 2852 * for the best. 2853 */ 2854 if (calg != MT_COMP_ENABLE) { 2855 scsi_ulto4b(calg, dcp->comp_algorithm); 2856 scsi_ulto4b(calg, dcp->decomp_algorithm); 2857 } else if (scsi_4btoul(dcp->comp_algorithm) == 0 && 2858 softc->saved_comp_algorithm != 0) { 2859 scsi_ulto4b(softc->saved_comp_algorithm, 2860 dcp->comp_algorithm); 2861 scsi_ulto4b(softc->saved_comp_algorithm, 2862 dcp->decomp_algorithm); 2863 } 2864 break; 2865 } 2866 /* 2867 * Compression does not appear to be supported- 2868 * at least via the DATA COMPRESSION page. It 2869 * would be too much to ask us to believe that 2870 * the page itself is supported, but incorrectly 2871 * reports an ability to manipulate data compression, 2872 * so we'll assume that this device doesn't support 2873 * compression. We can just fall through for that. 2874 */ 2875 /* FALLTHROUGH */ 2876 default: 2877 /* 2878 * The drive doesn't seem to support compression, 2879 * so turn off the set compression bit. 2880 */ 2881 params_to_set &= ~SA_PARAM_COMPRESSION; 2882 xpt_print_path(periph->path); 2883 printf("device does not seem to support compression\n"); 2884 2885 /* 2886 * If that was the only thing the user wanted us to set, 2887 * clean up allocated resources and return with 2888 * 'operation not supported'. 2889 */ 2890 if (params_to_set == SA_PARAM_NONE) { 2891 free(mode_buffer, M_TEMP); 2892 xpt_release_ccb(ccb); 2893 return (ENODEV); 2894 } 2895 2896 /* 2897 * That wasn't the only thing the user wanted us to set. 2898 * So, decrease the stated mode buffer length by the 2899 * size of the compression mode page. 2900 */ 2901 mode_buffer_len -= sizeof(sa_comp_t); 2902 } 2903 } 2904 2905 /* It is safe to retry this operation */ 2906 scsi_mode_select(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, 2907 (params_to_set & SA_PARAM_COMPRESSION)? TRUE : FALSE, 2908 FALSE, mode_buffer, mode_buffer_len, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 2909 2910 error = cam_periph_runccb(ccb, saerror, 0, 2911 sense_flags, softc->device_stats); 2912 QFRLS(ccb); 2913 2914 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 2915 int idx; 2916 char *xyz = mode_buffer; 2917 xpt_print_path(periph->path); 2918 printf("Err%d, Mode Select Data=", error); 2919 for (idx = 0; idx < mode_buffer_len; idx++) 2920 printf(" 0x%02x", xyz[idx] & 0xff); 2921 printf("\n"); 2922 } 2923 2924 2925 if (error) { 2926 /* 2927 * If we can, try without setting density/blocksize. 2928 */ 2929 if (mode_blk) { 2930 if ((params_to_set & 2931 (SA_PARAM_DENSITY|SA_PARAM_BLOCKSIZE)) == 0) { 2932 mode_blk = NULL; 2933 goto retry; 2934 } 2935 } else { 2936 mode_blk = (struct scsi_mode_blk_desc *)&mode_hdr[1]; 2937 cpage = (sa_comp_t *)&mode_blk[1]; 2938 } 2939 2940 /* 2941 * If we were setting the blocksize, and that failed, we 2942 * want to set it to its original value. If we weren't 2943 * setting the blocksize, we don't want to change it. 2944 */ 2945 scsi_ulto3b(current_blocksize, mode_blk->blklen); 2946 2947 /* 2948 * Set density if requested, else preserve old density. 2949 * SCSI_SAME_DENSITY only applies to SCSI-2 or better 2950 * devices, else density we've latched up in our softc. 2951 */ 2952 if (params_to_set & SA_PARAM_DENSITY) { 2953 mode_blk->density = current_density; 2954 } else if (softc->scsi_rev > SCSI_REV_CCS) { 2955 mode_blk->density = SCSI_SAME_DENSITY; 2956 } else { 2957 mode_blk->density = softc->media_density; 2958 } 2959 2960 if (params_to_set & SA_PARAM_COMPRESSION) 2961 bcopy(ccomp, cpage, sizeof (sa_comp_t)); 2962 2963 /* 2964 * The retry count is the only CCB field that might have been 2965 * changed that we care about, so reset it back to 1. 2966 */ 2967 ccb->ccb_h.retry_count = 1; 2968 cam_periph_runccb(ccb, saerror, 0, sense_flags, 2969 softc->device_stats); 2970 QFRLS(ccb); 2971 } 2972 2973 xpt_release_ccb(ccb); 2974 2975 if (ccomp != NULL) 2976 free(ccomp, M_TEMP); 2977 2978 if (params_to_set & SA_PARAM_COMPRESSION) { 2979 if (error) { 2980 softc->flags &= ~SA_FLAG_COMP_ENABLED; 2981 /* 2982 * Even if we get an error setting compression, 2983 * do not say that we don't support it. We could 2984 * have been wrong, or it may be media specific. 2985 * softc->flags &= ~SA_FLAG_COMP_SUPP; 2986 */ 2987 softc->saved_comp_algorithm = softc->comp_algorithm; 2988 softc->comp_algorithm = 0; 2989 } else { 2990 softc->flags |= SA_FLAG_COMP_ENABLED; 2991 softc->comp_algorithm = calg; 2992 } 2993 } 2994 2995 free(mode_buffer, M_TEMP); 2996 return (error); 2997} 2998 2999static void 3000saprevent(struct cam_periph *periph, int action) 3001{ 3002 struct sa_softc *softc; 3003 union ccb *ccb; 3004 int error, sf; 3005 3006 softc = (struct sa_softc *)periph->softc; 3007 3008 if ((action == PR_ALLOW) && (softc->flags & SA_FLAG_TAPE_LOCKED) == 0) 3009 return; 3010 if ((action == PR_PREVENT) && (softc->flags & SA_FLAG_TAPE_LOCKED) != 0) 3011 return; 3012 3013 /* 3014 * We can be quiet about illegal requests. 3015 */ 3016 if (CAM_DEBUGGED(periph->path, CAM_DEBUG_INFO)) { 3017 sf = 0; 3018 } else 3019 sf = SF_QUIET_IR; 3020 3021 ccb = cam_periph_getccb(periph, 1); 3022 3023 /* It is safe to retry this operation */ 3024 scsi_prevent(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, action, 3025 SSD_FULL_SIZE, SCSIOP_TIMEOUT); 3026 3027 error = cam_periph_runccb(ccb, saerror, 0, sf, softc->device_stats); 3028 QFRLS(ccb); 3029 if (error == 0) { 3030 if (action == PR_ALLOW) 3031 softc->flags &= ~SA_FLAG_TAPE_LOCKED; 3032 else 3033 softc->flags |= SA_FLAG_TAPE_LOCKED; 3034 } 3035 3036 xpt_release_ccb(ccb); 3037} 3038 3039static int 3040sarewind(struct cam_periph *periph) 3041{ 3042 union ccb *ccb; 3043 struct sa_softc *softc; 3044 int error; 3045 3046 softc = (struct sa_softc *)periph->softc; 3047 3048 ccb = cam_periph_getccb(periph, 1); 3049 3050 /* It is safe to retry this operation */ 3051 scsi_rewind(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE, 3052 SSD_FULL_SIZE, REWIND_TIMEOUT); 3053 3054 softc->dsreg = MTIO_DSREG_REW; 3055 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3056 softc->dsreg = MTIO_DSREG_REST; 3057 3058 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3059 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); 3060 3061 xpt_release_ccb(ccb); 3062 if (error == 0) 3063 softc->fileno = softc->blkno = (daddr_t) 0; 3064 else 3065 softc->fileno = softc->blkno = (daddr_t) -1; 3066 return (error); 3067} 3068 3069static int 3070saspace(struct cam_periph *periph, int count, scsi_space_code code) 3071{ 3072 union ccb *ccb; 3073 struct sa_softc *softc; 3074 int error; 3075 3076 softc = (struct sa_softc *)periph->softc; 3077 3078 ccb = cam_periph_getccb(periph, 1); 3079 3080 /* This cannot be retried */ 3081 3082 scsi_space(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, code, count, 3083 SSD_FULL_SIZE, SPACE_TIMEOUT); 3084 3085 /* 3086 * Clear residual because we will be using it. 3087 */ 3088 softc->last_ctl_resid = 0; 3089 3090 softc->dsreg = (count < 0)? MTIO_DSREG_REV : MTIO_DSREG_FWD; 3091 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3092 softc->dsreg = MTIO_DSREG_REST; 3093 3094 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3095 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); 3096 3097 xpt_release_ccb(ccb); 3098 3099 /* 3100 * If a spacing operation has failed, we need to invalidate 3101 * this mount. 3102 * 3103 * If the spacing operation was setmarks or to end of recorded data, 3104 * we no longer know our relative position. 3105 * 3106 * If the spacing operations was spacing files in reverse, we 3107 * take account of the residual, but still check against less 3108 * than zero- if we've gone negative, we must have hit BOT. 3109 * 3110 * If the spacing operations was spacing records in reverse and 3111 * we have a residual, we've either hit BOT or hit a filemark. 3112 * In the former case, we know our new record number (0). In 3113 * the latter case, we have absolutely no idea what the real 3114 * record number is- we've stopped between the end of the last 3115 * record in the previous file and the filemark that stopped 3116 * our spacing backwards. 3117 */ 3118 if (error) { 3119 softc->fileno = softc->blkno = (daddr_t) -1; 3120 } else if (code == SS_SETMARKS || code == SS_EOD) { 3121 softc->fileno = softc->blkno = (daddr_t) -1; 3122 } else if (code == SS_FILEMARKS && softc->fileno != (daddr_t) -1) { 3123 softc->fileno += (count - softc->last_ctl_resid); 3124 if (softc->fileno < 0) /* we must of hit BOT */ 3125 softc->fileno = 0; 3126 softc->blkno = 0; 3127 } else if (code == SS_BLOCKS && softc->blkno != (daddr_t) -1) { 3128 softc->blkno += (count - softc->last_ctl_resid); 3129 if (count < 0) { 3130 if (softc->last_ctl_resid || softc->blkno < 0) { 3131 if (softc->fileno == 0) { 3132 softc->blkno = 0; 3133 } else { 3134 softc->blkno = (daddr_t) -1; 3135 } 3136 } 3137 } 3138 } 3139 return (error); 3140} 3141 3142static int 3143sawritefilemarks(struct cam_periph *periph, int nmarks, int setmarks) 3144{ 3145 union ccb *ccb; 3146 struct sa_softc *softc; 3147 int error, nwm = 0; 3148 3149 softc = (struct sa_softc *)periph->softc; 3150 3151 ccb = cam_periph_getccb(periph, 1); 3152 /* 3153 * Clear residual because we will be using it. 3154 */ 3155 softc->last_ctl_resid = 0; 3156 3157 softc->dsreg = MTIO_DSREG_FMK; 3158 /* this *must* not be retried */ 3159 scsi_write_filemarks(&ccb->csio, 0, sadone, MSG_SIMPLE_Q_TAG, 3160 FALSE, setmarks, nmarks, SSD_FULL_SIZE, IO_TIMEOUT); 3161 softc->dsreg = MTIO_DSREG_REST; 3162 3163 3164 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3165 3166 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3167 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); 3168 3169 if (error == 0 && nmarks) { 3170 struct sa_softc *softc = (struct sa_softc *)periph->softc; 3171 nwm = nmarks - softc->last_ctl_resid; 3172 softc->filemarks += nwm; 3173 } 3174 3175 xpt_release_ccb(ccb); 3176 3177 /* 3178 * Update relative positions (if we're doing that). 3179 */ 3180 if (error) { 3181 softc->fileno = softc->blkno = (daddr_t) -1; 3182 } else if (softc->fileno != (daddr_t) -1) { 3183 softc->fileno += nwm; 3184 softc->blkno = 0; 3185 } 3186 return (error); 3187} 3188 3189static int 3190sardpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) 3191{ 3192 struct scsi_tape_position_data loc; 3193 union ccb *ccb; 3194 struct sa_softc *softc = (struct sa_softc *)periph->softc; 3195 int error; 3196 3197 /* 3198 * We try and flush any buffered writes here if we were writing 3199 * and we're trying to get hardware block position. It eats 3200 * up performance substantially, but I'm wary of drive firmware. 3201 * 3202 * I think that *logical* block position is probably okay- 3203 * but hardware block position might have to wait for data 3204 * to hit media to be valid. Caveat Emptor. 3205 */ 3206 3207 if (hard && (softc->flags & SA_FLAG_TAPE_WRITTEN)) { 3208 error = sawritefilemarks(periph, 0, 0); 3209 if (error && error != EACCES) 3210 return (error); 3211 } 3212 3213 ccb = cam_periph_getccb(periph, 1); 3214 scsi_read_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, 3215 hard, &loc, SSD_FULL_SIZE, SCSIOP_TIMEOUT); 3216 softc->dsreg = MTIO_DSREG_RBSY; 3217 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3218 softc->dsreg = MTIO_DSREG_REST; 3219 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3220 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0); 3221 3222 if (error == 0) { 3223 if (loc.flags & SA_RPOS_UNCERTAIN) { 3224 error = EINVAL; /* nothing is certain */ 3225 } else { 3226 *blkptr = scsi_4btoul(loc.firstblk); 3227 } 3228 } 3229 3230 xpt_release_ccb(ccb); 3231 return (error); 3232} 3233 3234static int 3235sasetpos(struct cam_periph *periph, int hard, u_int32_t *blkptr) 3236{ 3237 union ccb *ccb; 3238 struct sa_softc *softc; 3239 int error; 3240 3241 /* 3242 * We used to try and flush any buffered writes here. 3243 * Now we push this onto user applications to either 3244 * flush the pending writes themselves (via a zero count 3245 * WRITE FILEMARKS command) or they can trust their tape 3246 * drive to do this correctly for them. 3247 */ 3248 3249 softc = (struct sa_softc *)periph->softc; 3250 ccb = cam_periph_getccb(periph, 1); 3251 3252 3253 scsi_set_position(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, 3254 hard, *blkptr, SSD_FULL_SIZE, SPACE_TIMEOUT); 3255 3256 3257 softc->dsreg = MTIO_DSREG_POS; 3258 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3259 softc->dsreg = MTIO_DSREG_REST; 3260 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3261 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, 0); 3262 xpt_release_ccb(ccb); 3263 /* 3264 * Note relative file && block number position as now unknown. 3265 */ 3266 softc->fileno = softc->blkno = (daddr_t) -1; 3267 return (error); 3268} 3269 3270static int 3271saretension(struct cam_periph *periph) 3272{ 3273 union ccb *ccb; 3274 struct sa_softc *softc; 3275 int error; 3276 3277 softc = (struct sa_softc *)periph->softc; 3278 3279 ccb = cam_periph_getccb(periph, 1); 3280 3281 /* It is safe to retry this operation */ 3282 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, 3283 FALSE, TRUE, TRUE, SSD_FULL_SIZE, ERASE_TIMEOUT); 3284 3285 softc->dsreg = MTIO_DSREG_TEN; 3286 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3287 softc->dsreg = MTIO_DSREG_REST; 3288 3289 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3290 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); 3291 xpt_release_ccb(ccb); 3292 if (error == 0) 3293 softc->fileno = softc->blkno = (daddr_t) 0; 3294 else 3295 softc->fileno = softc->blkno = (daddr_t) -1; 3296 return (error); 3297} 3298 3299static int 3300sareservereleaseunit(struct cam_periph *periph, int reserve) 3301{ 3302 union ccb *ccb; 3303 struct sa_softc *softc; 3304 int error; 3305 3306 softc = (struct sa_softc *)periph->softc; 3307 ccb = cam_periph_getccb(periph, 1); 3308 3309 /* It is safe to retry this operation */ 3310 scsi_reserve_release_unit(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, 3311 FALSE, 0, SSD_FULL_SIZE, SCSIOP_TIMEOUT, reserve); 3312 softc->dsreg = MTIO_DSREG_RBSY; 3313 error = cam_periph_runccb(ccb, saerror, 0, 3314 SF_RETRY_UA | SF_NO_PRINT, softc->device_stats); 3315 softc->dsreg = MTIO_DSREG_REST; 3316 QFRLS(ccb); 3317 xpt_release_ccb(ccb); 3318 3319 /* 3320 * If the error was Illegal Request, then the device doesn't support 3321 * RESERVE/RELEASE. This is not an error. 3322 */ 3323 if (error == EINVAL) { 3324 error = 0; 3325 } 3326 3327 return (error); 3328} 3329 3330static int 3331saloadunload(struct cam_periph *periph, int load) 3332{ 3333 union ccb *ccb; 3334 struct sa_softc *softc; 3335 int error; 3336 3337 softc = (struct sa_softc *)periph->softc; 3338 3339 ccb = cam_periph_getccb(periph, 1); 3340 3341 /* It is safe to retry this operation */ 3342 scsi_load_unload(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG, FALSE, 3343 FALSE, FALSE, load, SSD_FULL_SIZE, REWIND_TIMEOUT); 3344 3345 softc->dsreg = (load)? MTIO_DSREG_LD : MTIO_DSREG_UNL; 3346 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3347 softc->dsreg = MTIO_DSREG_REST; 3348 QFRLS(ccb); 3349 xpt_release_ccb(ccb); 3350 3351 if (error || load == 0) 3352 softc->fileno = softc->blkno = (daddr_t) -1; 3353 else if (error == 0) 3354 softc->fileno = softc->blkno = (daddr_t) 0; 3355 return (error); 3356} 3357 3358static int 3359saerase(struct cam_periph *periph, int longerase) 3360{ 3361 3362 union ccb *ccb; 3363 struct sa_softc *softc; 3364 int error; 3365 3366 softc = (struct sa_softc *)periph->softc; 3367 3368 ccb = cam_periph_getccb(periph, 1); 3369 3370 scsi_erase(&ccb->csio, 1, sadone, MSG_SIMPLE_Q_TAG, FALSE, longerase, 3371 SSD_FULL_SIZE, ERASE_TIMEOUT); 3372 3373 softc->dsreg = MTIO_DSREG_ZER; 3374 error = cam_periph_runccb(ccb, saerror, 0, 0, softc->device_stats); 3375 softc->dsreg = MTIO_DSREG_REST; 3376 3377 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 3378 cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE); 3379 xpt_release_ccb(ccb); 3380 return (error); 3381} 3382 3383#endif /* _KERNEL */ 3384 3385/* 3386 * Read tape block limits command. 3387 */ 3388void 3389scsi_read_block_limits(struct ccb_scsiio *csio, u_int32_t retries, 3390 void (*cbfcnp)(struct cam_periph *, union ccb *), 3391 u_int8_t tag_action, 3392 struct scsi_read_block_limits_data *rlimit_buf, 3393 u_int8_t sense_len, u_int32_t timeout) 3394{ 3395 struct scsi_read_block_limits *scsi_cmd; 3396 3397 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, 3398 (u_int8_t *)rlimit_buf, sizeof(*rlimit_buf), sense_len, 3399 sizeof(*scsi_cmd), timeout); 3400 3401 scsi_cmd = (struct scsi_read_block_limits *)&csio->cdb_io.cdb_bytes; 3402 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3403 scsi_cmd->opcode = READ_BLOCK_LIMITS; 3404} 3405 3406void 3407scsi_sa_read_write(struct ccb_scsiio *csio, u_int32_t retries, 3408 void (*cbfcnp)(struct cam_periph *, union ccb *), 3409 u_int8_t tag_action, int readop, int sli, 3410 int fixed, u_int32_t length, u_int8_t *data_ptr, 3411 u_int32_t dxfer_len, u_int8_t sense_len, u_int32_t timeout) 3412{ 3413 struct scsi_sa_rw *scsi_cmd; 3414 3415 scsi_cmd = (struct scsi_sa_rw *)&csio->cdb_io.cdb_bytes; 3416 scsi_cmd->opcode = readop ? SA_READ : SA_WRITE; 3417 scsi_cmd->sli_fixed = 0; 3418 if (sli && readop) 3419 scsi_cmd->sli_fixed |= SAR_SLI; 3420 if (fixed) 3421 scsi_cmd->sli_fixed |= SARW_FIXED; 3422 scsi_ulto3b(length, scsi_cmd->length); 3423 scsi_cmd->control = 0; 3424 3425 cam_fill_csio(csio, retries, cbfcnp, readop ? CAM_DIR_IN : CAM_DIR_OUT, 3426 tag_action, data_ptr, dxfer_len, sense_len, 3427 sizeof(*scsi_cmd), timeout); 3428} 3429 3430void 3431scsi_load_unload(struct ccb_scsiio *csio, u_int32_t retries, 3432 void (*cbfcnp)(struct cam_periph *, union ccb *), 3433 u_int8_t tag_action, int immediate, int eot, 3434 int reten, int load, u_int8_t sense_len, 3435 u_int32_t timeout) 3436{ 3437 struct scsi_load_unload *scsi_cmd; 3438 3439 scsi_cmd = (struct scsi_load_unload *)&csio->cdb_io.cdb_bytes; 3440 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3441 scsi_cmd->opcode = LOAD_UNLOAD; 3442 if (immediate) 3443 scsi_cmd->immediate = SLU_IMMED; 3444 if (eot) 3445 scsi_cmd->eot_reten_load |= SLU_EOT; 3446 if (reten) 3447 scsi_cmd->eot_reten_load |= SLU_RETEN; 3448 if (load) 3449 scsi_cmd->eot_reten_load |= SLU_LOAD; 3450 3451 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, 3452 NULL, 0, sense_len, sizeof(*scsi_cmd), timeout); 3453} 3454 3455void 3456scsi_rewind(struct ccb_scsiio *csio, u_int32_t retries, 3457 void (*cbfcnp)(struct cam_periph *, union ccb *), 3458 u_int8_t tag_action, int immediate, u_int8_t sense_len, 3459 u_int32_t timeout) 3460{ 3461 struct scsi_rewind *scsi_cmd; 3462 3463 scsi_cmd = (struct scsi_rewind *)&csio->cdb_io.cdb_bytes; 3464 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3465 scsi_cmd->opcode = REWIND; 3466 if (immediate) 3467 scsi_cmd->immediate = SREW_IMMED; 3468 3469 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 3470 0, sense_len, sizeof(*scsi_cmd), timeout); 3471} 3472 3473void 3474scsi_space(struct ccb_scsiio *csio, u_int32_t retries, 3475 void (*cbfcnp)(struct cam_periph *, union ccb *), 3476 u_int8_t tag_action, scsi_space_code code, 3477 u_int32_t count, u_int8_t sense_len, u_int32_t timeout) 3478{ 3479 struct scsi_space *scsi_cmd; 3480 3481 scsi_cmd = (struct scsi_space *)&csio->cdb_io.cdb_bytes; 3482 scsi_cmd->opcode = SPACE; 3483 scsi_cmd->code = code; 3484 scsi_ulto3b(count, scsi_cmd->count); 3485 scsi_cmd->control = 0; 3486 3487 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 3488 0, sense_len, sizeof(*scsi_cmd), timeout); 3489} 3490 3491void 3492scsi_write_filemarks(struct ccb_scsiio *csio, u_int32_t retries, 3493 void (*cbfcnp)(struct cam_periph *, union ccb *), 3494 u_int8_t tag_action, int immediate, int setmark, 3495 u_int32_t num_marks, u_int8_t sense_len, 3496 u_int32_t timeout) 3497{ 3498 struct scsi_write_filemarks *scsi_cmd; 3499 3500 scsi_cmd = (struct scsi_write_filemarks *)&csio->cdb_io.cdb_bytes; 3501 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3502 scsi_cmd->opcode = WRITE_FILEMARKS; 3503 if (immediate) 3504 scsi_cmd->byte2 |= SWFMRK_IMMED; 3505 if (setmark) 3506 scsi_cmd->byte2 |= SWFMRK_WSMK; 3507 3508 scsi_ulto3b(num_marks, scsi_cmd->num_marks); 3509 3510 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 3511 0, sense_len, sizeof(*scsi_cmd), timeout); 3512} 3513 3514/* 3515 * The reserve and release unit commands differ only by their opcodes. 3516 */ 3517void 3518scsi_reserve_release_unit(struct ccb_scsiio *csio, u_int32_t retries, 3519 void (*cbfcnp)(struct cam_periph *, union ccb *), 3520 u_int8_t tag_action, int third_party, 3521 int third_party_id, u_int8_t sense_len, 3522 u_int32_t timeout, int reserve) 3523{ 3524 struct scsi_reserve_release_unit *scsi_cmd; 3525 3526 scsi_cmd = (struct scsi_reserve_release_unit *)&csio->cdb_io.cdb_bytes; 3527 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3528 3529 if (reserve) 3530 scsi_cmd->opcode = RESERVE_UNIT; 3531 else 3532 scsi_cmd->opcode = RELEASE_UNIT; 3533 3534 if (third_party) { 3535 scsi_cmd->lun_thirdparty |= SRRU_3RD_PARTY; 3536 scsi_cmd->lun_thirdparty |= 3537 ((third_party_id << SRRU_3RD_SHAMT) & SRRU_3RD_MASK); 3538 } 3539 3540 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 3541 0, sense_len, sizeof(*scsi_cmd), timeout); 3542} 3543 3544void 3545scsi_erase(struct ccb_scsiio *csio, u_int32_t retries, 3546 void (*cbfcnp)(struct cam_periph *, union ccb *), 3547 u_int8_t tag_action, int immediate, int long_erase, 3548 u_int8_t sense_len, u_int32_t timeout) 3549{ 3550 struct scsi_erase *scsi_cmd; 3551 3552 scsi_cmd = (struct scsi_erase *)&csio->cdb_io.cdb_bytes; 3553 bzero(scsi_cmd, sizeof(*scsi_cmd)); 3554 3555 scsi_cmd->opcode = ERASE; 3556 3557 if (immediate) 3558 scsi_cmd->lun_imm_long |= SE_IMMED; 3559 3560 if (long_erase) 3561 scsi_cmd->lun_imm_long |= SE_LONG; 3562 3563 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, NULL, 3564 0, sense_len, sizeof(*scsi_cmd), timeout); 3565} 3566 3567/* 3568 * Read Tape Position command. 3569 */ 3570void 3571scsi_read_position(struct ccb_scsiio *csio, u_int32_t retries, 3572 void (*cbfcnp)(struct cam_periph *, union ccb *), 3573 u_int8_t tag_action, int hardsoft, 3574 struct scsi_tape_position_data *sbp, 3575 u_int8_t sense_len, u_int32_t timeout) 3576{ 3577 struct scsi_tape_read_position *scmd; 3578 3579 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_IN, tag_action, 3580 (u_int8_t *)sbp, sizeof (*sbp), sense_len, sizeof(*scmd), timeout); 3581 scmd = (struct scsi_tape_read_position *)&csio->cdb_io.cdb_bytes; 3582 bzero(scmd, sizeof(*scmd)); 3583 scmd->opcode = READ_POSITION; 3584 scmd->byte1 = hardsoft; 3585} 3586 3587/* 3588 * Set Tape Position command. 3589 */ 3590void 3591scsi_set_position(struct ccb_scsiio *csio, u_int32_t retries, 3592 void (*cbfcnp)(struct cam_periph *, union ccb *), 3593 u_int8_t tag_action, int hardsoft, u_int32_t blkno, 3594 u_int8_t sense_len, u_int32_t timeout) 3595{ 3596 struct scsi_tape_locate *scmd; 3597 3598 cam_fill_csio(csio, retries, cbfcnp, CAM_DIR_NONE, tag_action, 3599 (u_int8_t *)NULL, 0, sense_len, sizeof(*scmd), timeout); 3600 scmd = (struct scsi_tape_locate *)&csio->cdb_io.cdb_bytes; 3601 bzero(scmd, sizeof(*scmd)); 3602 scmd->opcode = LOCATE; 3603 if (hardsoft) 3604 scmd->byte1 |= SA_SPOS_BT; 3605 scsi_ulto4b(blkno, scmd->blkaddr); 3606}
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