scsi_ch.c revision 109623
1/* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: head/sys/cam/scsi/scsi_ch.c 109623 2003-01-21 08:56:16Z alfred $ 28 */ 29/* 30 * Derived from the NetBSD SCSI changer driver. 31 * 32 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $ 33 * 34 */ 35/* 36 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com> 37 * All rights reserved. 38 * 39 * Partially based on an autochanger driver written by Stefan Grefen 40 * and on an autochanger driver written by the Systems Programming Group 41 * at the University of Utah Computer Science Department. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgements: 53 * This product includes software developed by Jason R. Thorpe 54 * for And Communications, http://www.and.com/ 55 * 4. The name of the author may not be used to endorse or promote products 56 * derived from this software without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 63 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 64 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 65 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 66 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 */ 70 71#include <sys/param.h> 72#include <sys/queue.h> 73#include <sys/systm.h> 74#include <sys/kernel.h> 75#include <sys/types.h> 76#include <sys/malloc.h> 77#include <sys/fcntl.h> 78#include <sys/conf.h> 79#include <sys/chio.h> 80#include <sys/errno.h> 81#include <sys/devicestat.h> 82 83#include <cam/cam.h> 84#include <cam/cam_ccb.h> 85#include <cam/cam_periph.h> 86#include <cam/cam_xpt_periph.h> 87#include <cam/cam_debug.h> 88 89#include <cam/scsi/scsi_all.h> 90#include <cam/scsi/scsi_message.h> 91#include <cam/scsi/scsi_ch.h> 92 93/* 94 * Timeout definitions for various changer related commands. They may 95 * be too short for some devices (especially the timeout for INITIALIZE 96 * ELEMENT STATUS). 97 */ 98 99static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 100static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 101static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 102static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 103static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 104static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 105static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 106 107typedef enum { 108 CH_FLAG_INVALID = 0x001, 109 CH_FLAG_OPEN = 0x002 110} ch_flags; 111 112typedef enum { 113 CH_STATE_PROBE, 114 CH_STATE_NORMAL 115} ch_state; 116 117typedef enum { 118 CH_CCB_PROBE, 119 CH_CCB_WAITING 120} ch_ccb_types; 121 122typedef enum { 123 CH_Q_NONE = 0x00, 124 CH_Q_NO_DBD = 0x01 125} ch_quirks; 126 127#define ccb_state ppriv_field0 128#define ccb_bp ppriv_ptr1 129 130struct scsi_mode_sense_data { 131 struct scsi_mode_header_6 header; 132 struct scsi_mode_blk_desc blk_desc; 133 union { 134 struct page_element_address_assignment ea; 135 struct page_transport_geometry_parameters tg; 136 struct page_device_capabilities cap; 137 } pages; 138}; 139 140struct ch_softc { 141 ch_flags flags; 142 ch_state state; 143 ch_quirks quirks; 144 union ccb saved_ccb; 145 struct devstat device_stats; 146 dev_t dev; 147 148 int sc_picker; /* current picker */ 149 150 /* 151 * The following information is obtained from the 152 * element address assignment page. 153 */ 154 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 155 int sc_counts[4]; /* counts, indexed by CHET_* */ 156 157 /* 158 * The following mask defines the legal combinations 159 * of elements for the MOVE MEDIUM command. 160 */ 161 u_int8_t sc_movemask[4]; 162 163 /* 164 * As above, but for EXCHANGE MEDIUM. 165 */ 166 u_int8_t sc_exchangemask[4]; 167 168 /* 169 * Quirks; see below. XXX KDM not implemented yet 170 */ 171 int sc_settledelay; /* delay for settle */ 172}; 173 174#define CHUNIT(x) (minor((x))) 175#define CH_CDEV_MAJOR 17 176 177static d_open_t chopen; 178static d_close_t chclose; 179static d_ioctl_t chioctl; 180static periph_init_t chinit; 181static periph_ctor_t chregister; 182static periph_oninv_t choninvalidate; 183static periph_dtor_t chcleanup; 184static periph_start_t chstart; 185static void chasync(void *callback_arg, u_int32_t code, 186 struct cam_path *path, void *arg); 187static void chdone(struct cam_periph *periph, 188 union ccb *done_ccb); 189static int cherror(union ccb *ccb, u_int32_t cam_flags, 190 u_int32_t sense_flags); 191static int chmove(struct cam_periph *periph, 192 struct changer_move *cm); 193static int chexchange(struct cam_periph *periph, 194 struct changer_exchange *ce); 195static int chposition(struct cam_periph *periph, 196 struct changer_position *cp); 197static int chgetelemstatus(struct cam_periph *periph, 198 struct changer_element_status_request *csr); 199static int chsetvoltag(struct cam_periph *periph, 200 struct changer_set_voltag_request *csvr); 201static int chielem(struct cam_periph *periph, 202 unsigned int timeout); 203static int chgetparams(struct cam_periph *periph); 204 205static struct periph_driver chdriver = 206{ 207 chinit, "ch", 208 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 209}; 210 211PERIPHDRIVER_DECLARE(ch, chdriver); 212 213static struct cdevsw ch_cdevsw = { 214 /* open */ chopen, 215 /* close */ chclose, 216 /* read */ noread, 217 /* write */ nowrite, 218 /* ioctl */ chioctl, 219 /* poll */ nopoll, 220 /* mmap */ nommap, 221 /* strategy */ nostrategy, 222 /* name */ "ch", 223 /* maj */ CH_CDEV_MAJOR, 224 /* dump */ nodump, 225 /* psize */ nopsize, 226 /* flags */ 0, 227}; 228 229static void 230chinit(void) 231{ 232 cam_status status; 233 struct cam_path *path; 234 235 /* 236 * Install a global async callback. This callback will 237 * receive async callbacks like "new device found". 238 */ 239 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 240 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 241 242 if (status == CAM_REQ_CMP) { 243 struct ccb_setasync csa; 244 245 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 246 csa.ccb_h.func_code = XPT_SASYNC_CB; 247 csa.event_enable = AC_FOUND_DEVICE; 248 csa.callback = chasync; 249 csa.callback_arg = NULL; 250 xpt_action((union ccb *)&csa); 251 status = csa.ccb_h.status; 252 xpt_free_path(path); 253 } 254 255 if (status != CAM_REQ_CMP) { 256 printf("ch: Failed to attach master async callback " 257 "due to status 0x%x!\n", status); 258 } 259} 260 261static void 262choninvalidate(struct cam_periph *periph) 263{ 264 struct ch_softc *softc; 265 struct ccb_setasync csa; 266 267 softc = (struct ch_softc *)periph->softc; 268 269 /* 270 * De-register any async callbacks. 271 */ 272 xpt_setup_ccb(&csa.ccb_h, periph->path, 273 /* priority */ 5); 274 csa.ccb_h.func_code = XPT_SASYNC_CB; 275 csa.event_enable = 0; 276 csa.callback = chasync; 277 csa.callback_arg = periph; 278 xpt_action((union ccb *)&csa); 279 280 softc->flags |= CH_FLAG_INVALID; 281 282 xpt_print_path(periph->path); 283 printf("lost device\n"); 284 285} 286 287static void 288chcleanup(struct cam_periph *periph) 289{ 290 struct ch_softc *softc; 291 292 softc = (struct ch_softc *)periph->softc; 293 294 devstat_remove_entry(&softc->device_stats); 295 destroy_dev(softc->dev); 296 xpt_print_path(periph->path); 297 printf("removing device entry\n"); 298 free(softc, M_DEVBUF); 299} 300 301static void 302chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 303{ 304 struct cam_periph *periph; 305 306 periph = (struct cam_periph *)callback_arg; 307 308 switch(code) { 309 case AC_FOUND_DEVICE: 310 { 311 struct ccb_getdev *cgd; 312 cam_status status; 313 314 cgd = (struct ccb_getdev *)arg; 315 if (cgd == NULL) 316 break; 317 318 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 319 break; 320 321 /* 322 * Allocate a peripheral instance for 323 * this device and start the probe 324 * process. 325 */ 326 status = cam_periph_alloc(chregister, choninvalidate, 327 chcleanup, chstart, "ch", 328 CAM_PERIPH_BIO, cgd->ccb_h.path, 329 chasync, AC_FOUND_DEVICE, cgd); 330 331 if (status != CAM_REQ_CMP 332 && status != CAM_REQ_INPROG) 333 printf("chasync: Unable to probe new device " 334 "due to status 0x%x\n", status); 335 336 break; 337 338 } 339 default: 340 cam_periph_async(periph, code, path, arg); 341 break; 342 } 343} 344 345static cam_status 346chregister(struct cam_periph *periph, void *arg) 347{ 348 struct ch_softc *softc; 349 struct ccb_setasync csa; 350 struct ccb_getdev *cgd; 351 352 cgd = (struct ccb_getdev *)arg; 353 if (periph == NULL) { 354 printf("chregister: periph was NULL!!\n"); 355 return(CAM_REQ_CMP_ERR); 356 } 357 358 if (cgd == NULL) { 359 printf("chregister: no getdev CCB, can't register device\n"); 360 return(CAM_REQ_CMP_ERR); 361 } 362 363 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 364 365 if (softc == NULL) { 366 printf("chregister: Unable to probe new device. " 367 "Unable to allocate softc\n"); 368 return(CAM_REQ_CMP_ERR); 369 } 370 371 bzero(softc, sizeof(*softc)); 372 softc->state = CH_STATE_PROBE; 373 periph->softc = softc; 374 softc->quirks = CH_Q_NONE; 375 376 /* 377 * Changers don't have a blocksize, and obviously don't support 378 * tagged queueing. 379 */ 380 devstat_add_entry(&softc->device_stats, "ch", 381 periph->unit_number, 0, 382 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 383 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 384 DEVSTAT_PRIORITY_OTHER); 385 386 /* Register the device */ 387 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 388 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 389 periph->unit_number); 390 softc->dev->si_drv1 = periph; 391 392 /* 393 * Add an async callback so that we get 394 * notified if this device goes away. 395 */ 396 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 397 csa.ccb_h.func_code = XPT_SASYNC_CB; 398 csa.event_enable = AC_LOST_DEVICE; 399 csa.callback = chasync; 400 csa.callback_arg = periph; 401 xpt_action((union ccb *)&csa); 402 403 /* 404 * Lock this peripheral until we are setup. 405 * This first call can't block 406 */ 407 (void)cam_periph_lock(periph, PRIBIO); 408 xpt_schedule(periph, /*priority*/5); 409 410 return(CAM_REQ_CMP); 411} 412 413static int 414chopen(dev_t dev, int flags, int fmt, struct thread *td) 415{ 416 struct cam_periph *periph; 417 struct ch_softc *softc; 418 int error; 419 int s; 420 421 periph = (struct cam_periph *)dev->si_drv1; 422 if (periph == NULL) 423 return(ENXIO); 424 425 softc = (struct ch_softc *)periph->softc; 426 427 s = splsoftcam(); 428 if (softc->flags & CH_FLAG_INVALID) { 429 splx(s); 430 return(ENXIO); 431 } 432 433 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 434 splx(s); 435 return (error); 436 } 437 438 splx(s); 439 440 if ((softc->flags & CH_FLAG_OPEN) == 0) { 441 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 442 return(ENXIO); 443 softc->flags |= CH_FLAG_OPEN; 444 } 445 446 /* 447 * Load information about this changer device into the softc. 448 */ 449 if ((error = chgetparams(periph)) != 0) { 450 softc->flags &= ~CH_FLAG_OPEN; 451 cam_periph_unlock(periph); 452 cam_periph_release(periph); 453 return(error); 454 } 455 456 cam_periph_unlock(periph); 457 458 return(error); 459} 460 461static int 462chclose(dev_t dev, int flag, int fmt, struct thread *td) 463{ 464 struct cam_periph *periph; 465 struct ch_softc *softc; 466 int error; 467 468 error = 0; 469 470 periph = (struct cam_periph *)dev->si_drv1; 471 if (periph == NULL) 472 return(ENXIO); 473 474 softc = (struct ch_softc *)periph->softc; 475 476 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 477 return(error); 478 479 softc->flags &= ~CH_FLAG_OPEN; 480 481 cam_periph_unlock(periph); 482 cam_periph_release(periph); 483 484 return(0); 485} 486 487static void 488chstart(struct cam_periph *periph, union ccb *start_ccb) 489{ 490 struct ch_softc *softc; 491 int s; 492 493 softc = (struct ch_softc *)periph->softc; 494 495 switch (softc->state) { 496 case CH_STATE_NORMAL: 497 { 498 s = splbio(); 499 if (periph->immediate_priority <= periph->pinfo.priority){ 500 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 501 502 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 503 periph_links.sle); 504 periph->immediate_priority = CAM_PRIORITY_NONE; 505 splx(s); 506 wakeup(&periph->ccb_list); 507 } else 508 splx(s); 509 break; 510 } 511 case CH_STATE_PROBE: 512 { 513 int mode_buffer_len; 514 void *mode_buffer; 515 516 /* 517 * Include the block descriptor when calculating the mode 518 * buffer length, 519 */ 520 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 521 sizeof(struct scsi_mode_blk_desc) + 522 sizeof(struct page_element_address_assignment); 523 524 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_NOWAIT); 525 526 if (mode_buffer == NULL) { 527 printf("chstart: couldn't malloc mode sense data\n"); 528 break; 529 } 530 bzero(mode_buffer, mode_buffer_len); 531 532 /* 533 * Get the element address assignment page. 534 */ 535 scsi_mode_sense(&start_ccb->csio, 536 /* retries */ 1, 537 /* cbfcnp */ chdone, 538 /* tag_action */ MSG_SIMPLE_Q_TAG, 539 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 540 FALSE : TRUE, 541 /* page_code */ SMS_PAGE_CTRL_CURRENT, 542 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 543 /* param_buf */ (u_int8_t *)mode_buffer, 544 /* param_len */ mode_buffer_len, 545 /* sense_len */ SSD_FULL_SIZE, 546 /* timeout */ CH_TIMEOUT_MODE_SENSE); 547 548 start_ccb->ccb_h.ccb_bp = NULL; 549 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 550 xpt_action(start_ccb); 551 break; 552 } 553 } 554} 555 556static void 557chdone(struct cam_periph *periph, union ccb *done_ccb) 558{ 559 struct ch_softc *softc; 560 struct ccb_scsiio *csio; 561 562 softc = (struct ch_softc *)periph->softc; 563 csio = &done_ccb->csio; 564 565 switch(done_ccb->ccb_h.ccb_state) { 566 case CH_CCB_PROBE: 567 { 568 struct scsi_mode_header_6 *mode_header; 569 struct page_element_address_assignment *ea; 570 char announce_buf[80]; 571 572 573 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 574 575 ea = (struct page_element_address_assignment *) 576 find_mode_page_6(mode_header); 577 578 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 579 580 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 581 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 582 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 583 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 584 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 585 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 586 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 587 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 588 softc->sc_picker = softc->sc_firsts[CHET_MT]; 589 590#define PLURAL(c) (c) == 1 ? "" : "s" 591 snprintf(announce_buf, sizeof(announce_buf), 592 "%d slot%s, %d drive%s, " 593 "%d picker%s, %d portal%s", 594 softc->sc_counts[CHET_ST], 595 PLURAL(softc->sc_counts[CHET_ST]), 596 softc->sc_counts[CHET_DT], 597 PLURAL(softc->sc_counts[CHET_DT]), 598 softc->sc_counts[CHET_MT], 599 PLURAL(softc->sc_counts[CHET_MT]), 600 softc->sc_counts[CHET_IE], 601 PLURAL(softc->sc_counts[CHET_IE])); 602#undef PLURAL 603 } else { 604 int error; 605 606 error = cherror(done_ccb, CAM_RETRY_SELTO, 607 SF_RETRY_UA | SF_NO_PRINT); 608 /* 609 * Retry any UNIT ATTENTION type errors. They 610 * are expected at boot. 611 */ 612 if (error == ERESTART) { 613 /* 614 * A retry was scheuled, so 615 * just return. 616 */ 617 return; 618 } else if (error != 0) { 619 int retry_scheduled; 620 struct scsi_mode_sense_6 *sms; 621 622 sms = (struct scsi_mode_sense_6 *) 623 done_ccb->csio.cdb_io.cdb_bytes; 624 625 /* 626 * Check to see if block descriptors were 627 * disabled. Some devices don't like that. 628 * We're taking advantage of the fact that 629 * the first few bytes of the 6 and 10 byte 630 * mode sense commands are the same. If 631 * block descriptors were disabled, enable 632 * them and re-send the command. 633 */ 634 if (sms->byte2 & SMS_DBD) { 635 sms->byte2 &= ~SMS_DBD; 636 xpt_action(done_ccb); 637 softc->quirks |= CH_Q_NO_DBD; 638 retry_scheduled = 1; 639 } else 640 retry_scheduled = 0; 641 642 /* Don't wedge this device's queue */ 643 cam_release_devq(done_ccb->ccb_h.path, 644 /*relsim_flags*/0, 645 /*reduction*/0, 646 /*timeout*/0, 647 /*getcount_only*/0); 648 649 if (retry_scheduled) 650 return; 651 652 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 653 == CAM_SCSI_STATUS_ERROR) 654 scsi_sense_print(&done_ccb->csio); 655 else { 656 xpt_print_path(periph->path); 657 printf("got CAM status %#x\n", 658 done_ccb->ccb_h.status); 659 } 660 xpt_print_path(periph->path); 661 printf("fatal error, failed to attach to" 662 " device\n"); 663 664 cam_periph_invalidate(periph); 665 666 announce_buf[0] = '\0'; 667 } 668 } 669 if (announce_buf[0] != '\0') 670 xpt_announce_periph(periph, announce_buf); 671 softc->state = CH_STATE_NORMAL; 672 free(mode_header, M_TEMP); 673 /* 674 * Since our peripheral may be invalidated by an error 675 * above or an external event, we must release our CCB 676 * before releasing the probe lock on the peripheral. 677 * The peripheral will only go away once the last lock 678 * is removed, and we need it around for the CCB release 679 * operation. 680 */ 681 xpt_release_ccb(done_ccb); 682 cam_periph_unlock(periph); 683 return; 684 } 685 case CH_CCB_WAITING: 686 { 687 /* Caller will release the CCB */ 688 wakeup(&done_ccb->ccb_h.cbfcnp); 689 return; 690 } 691 default: 692 break; 693 } 694 xpt_release_ccb(done_ccb); 695} 696 697static int 698cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 699{ 700 struct ch_softc *softc; 701 struct cam_periph *periph; 702 703 periph = xpt_path_periph(ccb->ccb_h.path); 704 softc = (struct ch_softc *)periph->softc; 705 706 return (cam_periph_error(ccb, cam_flags, sense_flags, 707 &softc->saved_ccb)); 708} 709 710static int 711chioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 712{ 713 struct cam_periph *periph; 714 struct ch_softc *softc; 715 int error; 716 717 periph = (struct cam_periph *)dev->si_drv1; 718 if (periph == NULL) 719 return(ENXIO); 720 721 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 722 723 softc = (struct ch_softc *)periph->softc; 724 725 error = 0; 726 727 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 728 ("trying to do ioctl %#lx\n", cmd)); 729 730 /* 731 * If this command can change the device's state, we must 732 * have the device open for writing. 733 */ 734 switch (cmd) { 735 case CHIOGPICKER: 736 case CHIOGPARAMS: 737 case CHIOGSTATUS: 738 break; 739 740 default: 741 if ((flag & FWRITE) == 0) 742 return (EBADF); 743 } 744 745 switch (cmd) { 746 case CHIOMOVE: 747 error = chmove(periph, (struct changer_move *)addr); 748 break; 749 750 case CHIOEXCHANGE: 751 error = chexchange(periph, (struct changer_exchange *)addr); 752 break; 753 754 case CHIOPOSITION: 755 error = chposition(periph, (struct changer_position *)addr); 756 break; 757 758 case CHIOGPICKER: 759 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 760 break; 761 762 case CHIOSPICKER: 763 { 764 int new_picker = *(int *)addr; 765 766 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) 767 return (EINVAL); 768 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 769 break; 770 } 771 case CHIOGPARAMS: 772 { 773 struct changer_params *cp = (struct changer_params *)addr; 774 775 cp->cp_npickers = softc->sc_counts[CHET_MT]; 776 cp->cp_nslots = softc->sc_counts[CHET_ST]; 777 cp->cp_nportals = softc->sc_counts[CHET_IE]; 778 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 779 break; 780 } 781 case CHIOIELEM: 782 error = chielem(periph, *(unsigned int *)addr); 783 break; 784 785 case CHIOGSTATUS: 786 { 787 error = chgetelemstatus(periph, 788 (struct changer_element_status_request *) addr); 789 break; 790 } 791 792 case CHIOSETVOLTAG: 793 { 794 error = chsetvoltag(periph, 795 (struct changer_set_voltag_request *) addr); 796 break; 797 } 798 799 /* Implement prevent/allow? */ 800 801 default: 802 error = cam_periph_ioctl(periph, cmd, addr, cherror); 803 break; 804 } 805 806 return (error); 807} 808 809static int 810chmove(struct cam_periph *periph, struct changer_move *cm) 811{ 812 struct ch_softc *softc; 813 u_int16_t fromelem, toelem; 814 union ccb *ccb; 815 int error; 816 817 error = 0; 818 softc = (struct ch_softc *)periph->softc; 819 820 /* 821 * Check arguments. 822 */ 823 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 824 return (EINVAL); 825 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 826 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 827 return (ENODEV); 828 829 /* 830 * Check the request against the changer's capabilities. 831 */ 832 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 833 return (ENODEV); 834 835 /* 836 * Calculate the source and destination elements. 837 */ 838 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 839 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 840 841 ccb = cam_periph_getccb(periph, /*priority*/ 1); 842 843 scsi_move_medium(&ccb->csio, 844 /* retries */ 1, 845 /* cbfcnp */ chdone, 846 /* tag_action */ MSG_SIMPLE_Q_TAG, 847 /* tea */ softc->sc_picker, 848 /* src */ fromelem, 849 /* dst */ toelem, 850 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 851 /* sense_len */ SSD_FULL_SIZE, 852 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 853 854 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 855 /*sense_flags*/ SF_RETRY_UA, 856 &softc->device_stats); 857 858 xpt_release_ccb(ccb); 859 860 return(error); 861} 862 863static int 864chexchange(struct cam_periph *periph, struct changer_exchange *ce) 865{ 866 struct ch_softc *softc; 867 u_int16_t src, dst1, dst2; 868 union ccb *ccb; 869 int error; 870 871 error = 0; 872 softc = (struct ch_softc *)periph->softc; 873 /* 874 * Check arguments. 875 */ 876 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 877 (ce->ce_sdsttype > CHET_DT)) 878 return (EINVAL); 879 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 880 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 881 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 882 return (ENODEV); 883 884 /* 885 * Check the request against the changer's capabilities. 886 */ 887 if (((softc->sc_exchangemask[ce->ce_srctype] & 888 (1 << ce->ce_fdsttype)) == 0) || 889 ((softc->sc_exchangemask[ce->ce_fdsttype] & 890 (1 << ce->ce_sdsttype)) == 0)) 891 return (ENODEV); 892 893 /* 894 * Calculate the source and destination elements. 895 */ 896 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 897 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 898 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 899 900 ccb = cam_periph_getccb(periph, /*priority*/ 1); 901 902 scsi_exchange_medium(&ccb->csio, 903 /* retries */ 1, 904 /* cbfcnp */ chdone, 905 /* tag_action */ MSG_SIMPLE_Q_TAG, 906 /* tea */ softc->sc_picker, 907 /* src */ src, 908 /* dst1 */ dst1, 909 /* dst2 */ dst2, 910 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 911 TRUE : FALSE, 912 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 913 TRUE : FALSE, 914 /* sense_len */ SSD_FULL_SIZE, 915 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 916 917 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 918 /*sense_flags*/ SF_RETRY_UA, 919 &softc->device_stats); 920 921 xpt_release_ccb(ccb); 922 923 return(error); 924} 925 926static int 927chposition(struct cam_periph *periph, struct changer_position *cp) 928{ 929 struct ch_softc *softc; 930 u_int16_t dst; 931 union ccb *ccb; 932 int error; 933 934 error = 0; 935 softc = (struct ch_softc *)periph->softc; 936 937 /* 938 * Check arguments. 939 */ 940 if (cp->cp_type > CHET_DT) 941 return (EINVAL); 942 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 943 return (ENODEV); 944 945 /* 946 * Calculate the destination element. 947 */ 948 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 949 950 ccb = cam_periph_getccb(periph, /*priority*/ 1); 951 952 scsi_position_to_element(&ccb->csio, 953 /* retries */ 1, 954 /* cbfcnp */ chdone, 955 /* tag_action */ MSG_SIMPLE_Q_TAG, 956 /* tea */ softc->sc_picker, 957 /* dst */ dst, 958 /* invert */ (cp->cp_flags & CP_INVERT) ? 959 TRUE : FALSE, 960 /* sense_len */ SSD_FULL_SIZE, 961 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 962 963 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 964 /*sense_flags*/ SF_RETRY_UA, 965 &softc->device_stats); 966 967 xpt_release_ccb(ccb); 968 969 return(error); 970} 971 972/* 973 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 974 * to host native byte order in the volume serial number. The volume 975 * label as returned by the changer is transferred to user mode as 976 * nul-terminated string. Volume labels are truncated at the first 977 * space, as suggested by SCSI-2. 978 */ 979static void 980copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 981{ 982 int i; 983 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 984 char c = voltag->vif[i]; 985 if (c && c != ' ') 986 uvoltag->cv_volid[i] = c; 987 else 988 break; 989 } 990 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 991} 992 993/* 994 * Copy an an element status descriptor to a user-mode 995 * changer_element_status structure. 996 */ 997 998static void 999copy_element_status(struct ch_softc *softc, 1000 u_int16_t flags, 1001 struct read_element_status_descriptor *desc, 1002 struct changer_element_status *ces) 1003{ 1004 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1005 u_int16_t et; 1006 1007 ces->ces_int_addr = eaddr; 1008 /* set up logical address in element status */ 1009 for (et = CHET_MT; et <= CHET_DT; et++) { 1010 if ((softc->sc_firsts[et] <= eaddr) 1011 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1012 > eaddr)) { 1013 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1014 ces->ces_type = et; 1015 break; 1016 } 1017 } 1018 1019 ces->ces_flags = desc->flags1; 1020 1021 ces->ces_sensecode = desc->sense_code; 1022 ces->ces_sensequal = desc->sense_qual; 1023 1024 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1025 ces->ces_flags |= CES_INVERT; 1026 1027 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1028 1029 eaddr = scsi_2btoul(desc->ssea); 1030 1031 /* convert source address to logical format */ 1032 for (et = CHET_MT; et <= CHET_DT; et++) { 1033 if ((softc->sc_firsts[et] <= eaddr) 1034 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1035 > eaddr)) { 1036 ces->ces_source_addr = 1037 eaddr - softc->sc_firsts[et]; 1038 ces->ces_source_type = et; 1039 ces->ces_flags |= CES_SOURCE_VALID; 1040 break; 1041 } 1042 } 1043 1044 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1045 printf("ch: warning: could not map element source " 1046 "address %ud to a valid element type\n", 1047 eaddr); 1048 } 1049 1050 1051 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1052 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1053 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1054 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1055 1056 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1057 ces->ces_flags |= CES_SCSIID_VALID; 1058 ces->ces_scsi_id = desc->dt_scsi_addr; 1059 } 1060 1061 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1062 ces->ces_flags |= CES_LUN_VALID; 1063 ces->ces_scsi_lun = 1064 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1065 } 1066} 1067 1068static int 1069chgetelemstatus(struct cam_periph *periph, 1070 struct changer_element_status_request *cesr) 1071{ 1072 struct read_element_status_header *st_hdr; 1073 struct read_element_status_page_header *pg_hdr; 1074 struct read_element_status_descriptor *desc; 1075 caddr_t data = NULL; 1076 size_t size, desclen; 1077 int avail, i, error = 0; 1078 struct changer_element_status *user_data = NULL; 1079 struct ch_softc *softc; 1080 union ccb *ccb; 1081 int chet = cesr->cesr_element_type; 1082 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1083 1084 softc = (struct ch_softc *)periph->softc; 1085 1086 /* perform argument checking */ 1087 1088 /* 1089 * Perform a range check on the cesr_element_{base,count} 1090 * request argument fields. 1091 */ 1092 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1093 || (cesr->cesr_element_base + cesr->cesr_element_count) 1094 > softc->sc_counts[chet]) 1095 return (EINVAL); 1096 1097 /* 1098 * Request one descriptor for the given element type. This 1099 * is used to determine the size of the descriptor so that 1100 * we can allocate enough storage for all of them. We assume 1101 * that the first one can fit into 1k. 1102 */ 1103 data = (caddr_t)malloc(1024, M_DEVBUF, 0); 1104 1105 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1106 1107 scsi_read_element_status(&ccb->csio, 1108 /* retries */ 1, 1109 /* cbfcnp */ chdone, 1110 /* tag_action */ MSG_SIMPLE_Q_TAG, 1111 /* voltag */ want_voltags, 1112 /* sea */ softc->sc_firsts[chet], 1113 /* count */ 1, 1114 /* data_ptr */ data, 1115 /* dxfer_len */ 1024, 1116 /* sense_len */ SSD_FULL_SIZE, 1117 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1118 1119 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1120 /*sense_flags*/ SF_RETRY_UA, 1121 &softc->device_stats); 1122 1123 if (error) 1124 goto done; 1125 1126 st_hdr = (struct read_element_status_header *)data; 1127 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1128 sizeof(struct read_element_status_header)); 1129 desclen = scsi_2btoul(pg_hdr->edl); 1130 1131 size = sizeof(struct read_element_status_header) + 1132 sizeof(struct read_element_status_page_header) + 1133 (desclen * cesr->cesr_element_count); 1134 1135 /* 1136 * Reallocate storage for descriptors and get them from the 1137 * device. 1138 */ 1139 free(data, M_DEVBUF); 1140 data = (caddr_t)malloc(size, M_DEVBUF, 0); 1141 1142 scsi_read_element_status(&ccb->csio, 1143 /* retries */ 1, 1144 /* cbfcnp */ chdone, 1145 /* tag_action */ MSG_SIMPLE_Q_TAG, 1146 /* voltag */ want_voltags, 1147 /* sea */ softc->sc_firsts[chet] 1148 + cesr->cesr_element_base, 1149 /* count */ cesr->cesr_element_count, 1150 /* data_ptr */ data, 1151 /* dxfer_len */ size, 1152 /* sense_len */ SSD_FULL_SIZE, 1153 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1154 1155 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1156 /*sense_flags*/ SF_RETRY_UA, 1157 &softc->device_stats); 1158 1159 if (error) 1160 goto done; 1161 1162 /* 1163 * Fill in the user status array. 1164 */ 1165 st_hdr = (struct read_element_status_header *)data; 1166 avail = scsi_2btoul(st_hdr->count); 1167 1168 if (avail != cesr->cesr_element_count) { 1169 xpt_print_path(periph->path); 1170 printf("warning, READ ELEMENT STATUS avail != count\n"); 1171 } 1172 1173 user_data = (struct changer_element_status *) 1174 malloc(avail * sizeof(struct changer_element_status), 1175 M_DEVBUF, M_ZERO); 1176 1177 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1178 sizeof(struct read_element_status_header) + 1179 sizeof(struct read_element_status_page_header)); 1180 /* 1181 * Set up the individual element status structures 1182 */ 1183 for (i = 0; i < avail; ++i) { 1184 struct changer_element_status *ces = &(user_data[i]); 1185 1186 copy_element_status(softc, pg_hdr->flags, desc, ces); 1187 1188 desc = (struct read_element_status_descriptor *) 1189 ((uintptr_t)desc + desclen); 1190 } 1191 1192 /* Copy element status structures out to userspace. */ 1193 error = copyout(user_data, 1194 cesr->cesr_element_status, 1195 avail * sizeof(struct changer_element_status)); 1196 1197 done: 1198 xpt_release_ccb(ccb); 1199 1200 if (data != NULL) 1201 free(data, M_DEVBUF); 1202 if (user_data != NULL) 1203 free(user_data, M_DEVBUF); 1204 1205 return (error); 1206} 1207 1208static int 1209chielem(struct cam_periph *periph, 1210 unsigned int timeout) 1211{ 1212 union ccb *ccb; 1213 struct ch_softc *softc; 1214 int error; 1215 1216 if (!timeout) { 1217 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1218 } else { 1219 timeout *= 1000; 1220 } 1221 1222 error = 0; 1223 softc = (struct ch_softc *)periph->softc; 1224 1225 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1226 1227 scsi_initialize_element_status(&ccb->csio, 1228 /* retries */ 1, 1229 /* cbfcnp */ chdone, 1230 /* tag_action */ MSG_SIMPLE_Q_TAG, 1231 /* sense_len */ SSD_FULL_SIZE, 1232 /* timeout */ timeout); 1233 1234 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1235 /*sense_flags*/ SF_RETRY_UA, 1236 &softc->device_stats); 1237 1238 xpt_release_ccb(ccb); 1239 1240 return(error); 1241} 1242 1243static int 1244chsetvoltag(struct cam_periph *periph, 1245 struct changer_set_voltag_request *csvr) 1246{ 1247 union ccb *ccb; 1248 struct ch_softc *softc; 1249 u_int16_t ea; 1250 u_int8_t sac; 1251 struct scsi_send_volume_tag_parameters ssvtp; 1252 int error; 1253 int i; 1254 1255 error = 0; 1256 softc = (struct ch_softc *)periph->softc; 1257 1258 bzero(&ssvtp, sizeof(ssvtp)); 1259 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1260 ssvtp.vitf[i] = ' '; 1261 } 1262 1263 /* 1264 * Check arguments. 1265 */ 1266 if (csvr->csvr_type > CHET_DT) 1267 return EINVAL; 1268 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1269 return ENODEV; 1270 1271 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1272 1273 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1274 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1275 case CSVR_MODE_SET: 1276 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1277 break; 1278 case CSVR_MODE_REPLACE: 1279 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1280 break; 1281 case CSVR_MODE_CLEAR: 1282 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1283 break; 1284 default: 1285 error = EINVAL; 1286 goto out; 1287 } 1288 } else { 1289 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1290 case CSVR_MODE_SET: 1291 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1292 break; 1293 case CSVR_MODE_REPLACE: 1294 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1295 break; 1296 case CSVR_MODE_CLEAR: 1297 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1298 break; 1299 default: 1300 error = EINVAL; 1301 goto out; 1302 } 1303 } 1304 1305 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1306 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1307 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1308 1309 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1310 1311 scsi_send_volume_tag(&ccb->csio, 1312 /* retries */ 1, 1313 /* cbfcnp */ chdone, 1314 /* tag_action */ MSG_SIMPLE_Q_TAG, 1315 /* element_address */ ea, 1316 /* send_action_code */ sac, 1317 /* parameters */ &ssvtp, 1318 /* sense_len */ SSD_FULL_SIZE, 1319 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1320 1321 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1322 /*sense_flags*/ SF_RETRY_UA, 1323 &softc->device_stats); 1324 1325 xpt_release_ccb(ccb); 1326 1327 out: 1328 return error; 1329} 1330 1331static int 1332chgetparams(struct cam_periph *periph) 1333{ 1334 union ccb *ccb; 1335 struct ch_softc *softc; 1336 void *mode_buffer; 1337 int mode_buffer_len; 1338 struct page_element_address_assignment *ea; 1339 struct page_device_capabilities *cap; 1340 int error, from, dbd; 1341 u_int8_t *moves, *exchanges; 1342 1343 error = 0; 1344 1345 softc = (struct ch_softc *)periph->softc; 1346 1347 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1348 1349 /* 1350 * The scsi_mode_sense_data structure is just a convenience 1351 * structure that allows us to easily calculate the worst-case 1352 * storage size of the mode sense buffer. 1353 */ 1354 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1355 1356 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_NOWAIT); 1357 1358 if (mode_buffer == NULL) { 1359 printf("chgetparams: couldn't malloc mode sense data\n"); 1360 return(ENOSPC); 1361 } 1362 1363 bzero(mode_buffer, mode_buffer_len); 1364 1365 if (softc->quirks & CH_Q_NO_DBD) 1366 dbd = FALSE; 1367 else 1368 dbd = TRUE; 1369 1370 /* 1371 * Get the element address assignment page. 1372 */ 1373 scsi_mode_sense(&ccb->csio, 1374 /* retries */ 1, 1375 /* cbfcnp */ chdone, 1376 /* tag_action */ MSG_SIMPLE_Q_TAG, 1377 /* dbd */ dbd, 1378 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1379 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1380 /* param_buf */ (u_int8_t *)mode_buffer, 1381 /* param_len */ mode_buffer_len, 1382 /* sense_len */ SSD_FULL_SIZE, 1383 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1384 1385 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1386 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1387 &softc->device_stats); 1388 1389 if (error) { 1390 if (dbd) { 1391 struct scsi_mode_sense_6 *sms; 1392 1393 sms = (struct scsi_mode_sense_6 *) 1394 ccb->csio.cdb_io.cdb_bytes; 1395 1396 sms->byte2 &= ~SMS_DBD; 1397 error = cam_periph_runccb(ccb, cherror, 1398 /*cam_flags*/ CAM_RETRY_SELTO, 1399 /*sense_flags*/ SF_RETRY_UA, 1400 &softc->device_stats); 1401 } else { 1402 /* 1403 * Since we disabled sense printing above, print 1404 * out the sense here since we got an error. 1405 */ 1406 scsi_sense_print(&ccb->csio); 1407 } 1408 1409 if (error) { 1410 xpt_print_path(periph->path); 1411 printf("chgetparams: error getting element " 1412 "address page\n"); 1413 xpt_release_ccb(ccb); 1414 free(mode_buffer, M_TEMP); 1415 return(error); 1416 } 1417 } 1418 1419 ea = (struct page_element_address_assignment *) 1420 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1421 1422 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1423 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1424 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1425 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1426 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1427 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1428 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1429 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1430 1431 bzero(mode_buffer, mode_buffer_len); 1432 1433 /* 1434 * Now get the device capabilities page. 1435 */ 1436 scsi_mode_sense(&ccb->csio, 1437 /* retries */ 1, 1438 /* cbfcnp */ chdone, 1439 /* tag_action */ MSG_SIMPLE_Q_TAG, 1440 /* dbd */ dbd, 1441 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1442 /* page */ CH_DEVICE_CAP_PAGE, 1443 /* param_buf */ (u_int8_t *)mode_buffer, 1444 /* param_len */ mode_buffer_len, 1445 /* sense_len */ SSD_FULL_SIZE, 1446 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1447 1448 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1449 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1450 &softc->device_stats); 1451 1452 if (error) { 1453 if (dbd) { 1454 struct scsi_mode_sense_6 *sms; 1455 1456 sms = (struct scsi_mode_sense_6 *) 1457 ccb->csio.cdb_io.cdb_bytes; 1458 1459 sms->byte2 &= ~SMS_DBD; 1460 error = cam_periph_runccb(ccb, cherror, 1461 /*cam_flags*/ CAM_RETRY_SELTO, 1462 /*sense_flags*/ SF_RETRY_UA, 1463 &softc->device_stats); 1464 } else { 1465 /* 1466 * Since we disabled sense printing above, print 1467 * out the sense here since we got an error. 1468 */ 1469 scsi_sense_print(&ccb->csio); 1470 } 1471 1472 if (error) { 1473 xpt_print_path(periph->path); 1474 printf("chgetparams: error getting device " 1475 "capabilities page\n"); 1476 xpt_release_ccb(ccb); 1477 free(mode_buffer, M_TEMP); 1478 return(error); 1479 } 1480 } 1481 1482 xpt_release_ccb(ccb); 1483 1484 cap = (struct page_device_capabilities *) 1485 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1486 1487 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1488 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1489 moves = &cap->move_from_mt; 1490 exchanges = &cap->exchange_with_mt; 1491 for (from = CHET_MT; from <= CHET_DT; ++from) { 1492 softc->sc_movemask[from] = moves[from]; 1493 softc->sc_exchangemask[from] = exchanges[from]; 1494 } 1495 1496 free(mode_buffer, M_TEMP); 1497 1498 return(error); 1499} 1500 1501void 1502scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1503 void (*cbfcnp)(struct cam_periph *, union ccb *), 1504 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1505 u_int32_t dst, int invert, u_int8_t sense_len, 1506 u_int32_t timeout) 1507{ 1508 struct scsi_move_medium *scsi_cmd; 1509 1510 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1511 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1512 1513 scsi_cmd->opcode = MOVE_MEDIUM; 1514 1515 scsi_ulto2b(tea, scsi_cmd->tea); 1516 scsi_ulto2b(src, scsi_cmd->src); 1517 scsi_ulto2b(dst, scsi_cmd->dst); 1518 1519 if (invert) 1520 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1521 1522 cam_fill_csio(csio, 1523 retries, 1524 cbfcnp, 1525 /*flags*/ CAM_DIR_NONE, 1526 tag_action, 1527 /*data_ptr*/ NULL, 1528 /*dxfer_len*/ 0, 1529 sense_len, 1530 sizeof(*scsi_cmd), 1531 timeout); 1532} 1533 1534void 1535scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1536 void (*cbfcnp)(struct cam_periph *, union ccb *), 1537 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1538 u_int32_t dst1, u_int32_t dst2, int invert1, 1539 int invert2, u_int8_t sense_len, u_int32_t timeout) 1540{ 1541 struct scsi_exchange_medium *scsi_cmd; 1542 1543 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1544 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1545 1546 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1547 1548 scsi_ulto2b(tea, scsi_cmd->tea); 1549 scsi_ulto2b(src, scsi_cmd->src); 1550 scsi_ulto2b(dst1, scsi_cmd->fdst); 1551 scsi_ulto2b(dst2, scsi_cmd->sdst); 1552 1553 if (invert1) 1554 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1555 1556 if (invert2) 1557 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1558 1559 cam_fill_csio(csio, 1560 retries, 1561 cbfcnp, 1562 /*flags*/ CAM_DIR_NONE, 1563 tag_action, 1564 /*data_ptr*/ NULL, 1565 /*dxfer_len*/ 0, 1566 sense_len, 1567 sizeof(*scsi_cmd), 1568 timeout); 1569} 1570 1571void 1572scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1573 void (*cbfcnp)(struct cam_periph *, union ccb *), 1574 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1575 int invert, u_int8_t sense_len, u_int32_t timeout) 1576{ 1577 struct scsi_position_to_element *scsi_cmd; 1578 1579 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1580 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1581 1582 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1583 1584 scsi_ulto2b(tea, scsi_cmd->tea); 1585 scsi_ulto2b(dst, scsi_cmd->dst); 1586 1587 if (invert) 1588 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1589 1590 cam_fill_csio(csio, 1591 retries, 1592 cbfcnp, 1593 /*flags*/ CAM_DIR_NONE, 1594 tag_action, 1595 /*data_ptr*/ NULL, 1596 /*dxfer_len*/ 0, 1597 sense_len, 1598 sizeof(*scsi_cmd), 1599 timeout); 1600} 1601 1602void 1603scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1604 void (*cbfcnp)(struct cam_periph *, union ccb *), 1605 u_int8_t tag_action, int voltag, u_int32_t sea, 1606 u_int32_t count, u_int8_t *data_ptr, 1607 u_int32_t dxfer_len, u_int8_t sense_len, 1608 u_int32_t timeout) 1609{ 1610 struct scsi_read_element_status *scsi_cmd; 1611 1612 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1613 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1614 1615 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1616 1617 scsi_ulto2b(sea, scsi_cmd->sea); 1618 scsi_ulto2b(count, scsi_cmd->count); 1619 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1620 1621 if (voltag) 1622 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1623 1624 cam_fill_csio(csio, 1625 retries, 1626 cbfcnp, 1627 /*flags*/ CAM_DIR_IN, 1628 tag_action, 1629 data_ptr, 1630 dxfer_len, 1631 sense_len, 1632 sizeof(*scsi_cmd), 1633 timeout); 1634} 1635 1636void 1637scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1638 void (*cbfcnp)(struct cam_periph *, union ccb *), 1639 u_int8_t tag_action, u_int8_t sense_len, 1640 u_int32_t timeout) 1641{ 1642 struct scsi_initialize_element_status *scsi_cmd; 1643 1644 scsi_cmd = (struct scsi_initialize_element_status *) 1645 &csio->cdb_io.cdb_bytes; 1646 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1647 1648 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1649 1650 cam_fill_csio(csio, 1651 retries, 1652 cbfcnp, 1653 /*flags*/ CAM_DIR_NONE, 1654 tag_action, 1655 /* data_ptr */ NULL, 1656 /* dxfer_len */ 0, 1657 sense_len, 1658 sizeof(*scsi_cmd), 1659 timeout); 1660} 1661 1662void 1663scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1664 void (*cbfcnp)(struct cam_periph *, union ccb *), 1665 u_int8_t tag_action, 1666 u_int16_t element_address, 1667 u_int8_t send_action_code, 1668 struct scsi_send_volume_tag_parameters *parameters, 1669 u_int8_t sense_len, u_int32_t timeout) 1670{ 1671 struct scsi_send_volume_tag *scsi_cmd; 1672 1673 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1674 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1675 1676 scsi_cmd->opcode = SEND_VOLUME_TAG; 1677 scsi_ulto2b(element_address, scsi_cmd->ea); 1678 scsi_cmd->sac = send_action_code; 1679 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1680 1681 cam_fill_csio(csio, 1682 retries, 1683 cbfcnp, 1684 /*flags*/ CAM_DIR_OUT, 1685 tag_action, 1686 /* data_ptr */ (u_int8_t *) parameters, 1687 sizeof(*parameters), 1688 sense_len, 1689 sizeof(*scsi_cmd), 1690 timeout); 1691} 1692