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 * $FreeBSD$ 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_extend.h> 86 #include <cam/cam_periph.h> 87 #include <cam/cam_xpt_periph.h> 88 #include <cam/cam_debug.h> 89 90 #include <cam/scsi/scsi_all.h> 91 #include <cam/scsi/scsi_message.h> 92 #include <cam/scsi/scsi_ch.h> 93 94 /* 95 * Timeout definitions for various changer related commands. They may 96 * be too short for some devices (especially the timeout for INITIALIZE 97 * ELEMENT STATUS). 98 */ 99 100 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 101 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 102 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 103 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 104 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 105 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 106 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 107 108 typedef enum { 109 CH_FLAG_INVALID = 0x001, 110 CH_FLAG_OPEN = 0x002 111 } ch_flags; 112 113 typedef enum { 114 CH_STATE_PROBE, 115 CH_STATE_NORMAL 116 } ch_state; 117 118 typedef enum { 119 CH_CCB_PROBE, 120 CH_CCB_WAITING 121 } ch_ccb_types; 122 123 typedef enum { 124 CH_Q_NONE = 0x00, 125 CH_Q_NO_DBD = 0x01 126 } ch_quirks; 127 128 #define ccb_state ppriv_field0 129 #define ccb_bp ppriv_ptr1 130 131 struct scsi_mode_sense_data { 132 struct scsi_mode_header_6 header; 133 struct scsi_mode_blk_desc blk_desc; 134 union { 135 struct page_element_address_assignment ea; 136 struct page_transport_geometry_parameters tg; 137 struct page_device_capabilities cap; 138 } pages; 139 }; 140 141 struct ch_softc { 142 ch_flags flags; 143 ch_state state; 144 ch_quirks quirks; 145 union ccb saved_ccb; 146 struct devstat device_stats; 147 dev_t dev; 148 149 int sc_picker; /* current picker */ 150 151 /* 152 * The following information is obtained from the 153 * element address assignment page. 154 */ 155 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 156 int sc_counts[4]; /* counts, indexed by CHET_* */ 157 158 /* 159 * The following mask defines the legal combinations 160 * of elements for the MOVE MEDIUM command. 161 */ 162 u_int8_t sc_movemask[4]; 163 164 /* 165 * As above, but for EXCHANGE MEDIUM. 166 */ 167 u_int8_t sc_exchangemask[4]; 168 169 /* 170 * Quirks; see below. XXX KDM not implemented yet 171 */ 172 int sc_settledelay; /* delay for settle */ 173 }; 174 175 #define CHUNIT(x) (minor((x))) 176 #define CH_CDEV_MAJOR 17 177 178 static d_open_t chopen; 179 static d_close_t chclose; 180 static d_ioctl_t chioctl; 181 static periph_init_t chinit; 182 static periph_ctor_t chregister; 183 static periph_oninv_t choninvalidate; 184 static periph_dtor_t chcleanup; 185 static periph_start_t chstart; 186 static void chasync(void *callback_arg, u_int32_t code, 187 struct cam_path *path, void *arg); 188 static void chdone(struct cam_periph *periph, 189 union ccb *done_ccb); 190 static int cherror(union ccb *ccb, u_int32_t cam_flags, 191 u_int32_t sense_flags); 192 static int chmove(struct cam_periph *periph, 193 struct changer_move *cm); 194 static int chexchange(struct cam_periph *periph, 195 struct changer_exchange *ce); 196 static int chposition(struct cam_periph *periph, 197 struct changer_position *cp); 198 static int chgetelemstatus(struct cam_periph *periph, 199 struct changer_element_status_request *csr); 200 static int chsetvoltag(struct cam_periph *periph, 201 struct changer_set_voltag_request *csvr); 202 static int chielem(struct cam_periph *periph, 203 unsigned int timeout); 204 static int chgetparams(struct cam_periph *periph); 205 206 static struct periph_driver chdriver = 207 { 208 chinit, "ch", 209 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 210 }; 211 212 PERIPHDRIVER_DECLARE(ch, chdriver); 213 214 static struct cdevsw ch_cdevsw = { 215 /* open */ chopen, 216 /* close */ chclose, 217 /* read */ noread, 218 /* write */ nowrite, 219 /* ioctl */ chioctl, 220 /* poll */ nopoll, 221 /* mmap */ nommap, 222 /* strategy */ nostrategy, 223 /* name */ "ch", 224 /* maj */ CH_CDEV_MAJOR, 225 /* dump */ nodump, 226 /* psize */ nopsize, 227 /* flags */ 0, 228 }; 229 230 static struct extend_array *chperiphs; 231 232 void 233 chinit(void) 234 { 235 cam_status status; 236 struct cam_path *path; 237 238 /* 239 * Create our extend array for storing the devices we attach to. 240 */ 241 chperiphs = cam_extend_new(); 242 if (chperiphs == NULL) { 243 printf("ch: Failed to alloc extend array!\n"); 244 return; 245 } 246 247 /* 248 * Install a global async callback. This callback will 249 * receive async callbacks like "new device found". 250 */ 251 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 252 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 253 254 if (status == CAM_REQ_CMP) { 255 struct ccb_setasync csa; 256 257 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 258 csa.ccb_h.func_code = XPT_SASYNC_CB; 259 csa.event_enable = AC_FOUND_DEVICE; 260 csa.callback = chasync; 261 csa.callback_arg = NULL; 262 xpt_action((union ccb *)&csa); 263 status = csa.ccb_h.status; 264 xpt_free_path(path); 265 } 266 267 if (status != CAM_REQ_CMP) { 268 printf("ch: Failed to attach master async callback " 269 "due to status 0x%x!\n", status); 270 } 271 } 272 273 static void 274 choninvalidate(struct cam_periph *periph) 275 { 276 struct ch_softc *softc; 277 struct ccb_setasync csa; 278 279 softc = (struct ch_softc *)periph->softc; 280 281 /* 282 * De-register any async callbacks. 283 */ 284 xpt_setup_ccb(&csa.ccb_h, periph->path, 285 /* priority */ 5); 286 csa.ccb_h.func_code = XPT_SASYNC_CB; 287 csa.event_enable = 0; 288 csa.callback = chasync; 289 csa.callback_arg = periph; 290 xpt_action((union ccb *)&csa); 291 292 softc->flags |= CH_FLAG_INVALID; 293 294 xpt_print_path(periph->path); 295 printf("lost device\n"); 296 297 } 298 299 static void 300 chcleanup(struct cam_periph *periph) 301 { 302 struct ch_softc *softc; 303 304 softc = (struct ch_softc *)periph->softc; 305 306 devstat_remove_entry(&softc->device_stats); 307 destroy_dev(softc->dev); 308 cam_extend_release(chperiphs, periph->unit_number); 309 xpt_print_path(periph->path); 310 printf("removing device entry\n"); 311 free(softc, M_DEVBUF); 312 } 313 314 static void 315 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 316 { 317 struct cam_periph *periph; 318 319 periph = (struct cam_periph *)callback_arg; 320 321 switch(code) { 322 case AC_FOUND_DEVICE: 323 { 324 struct ccb_getdev *cgd; 325 cam_status status; 326 327 cgd = (struct ccb_getdev *)arg; 328 if (cgd == NULL) 329 break; 330 331 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 332 break; 333 334 /* 335 * Allocate a peripheral instance for 336 * this device and start the probe 337 * process. 338 */ 339 status = cam_periph_alloc(chregister, choninvalidate, 340 chcleanup, chstart, "ch", 341 CAM_PERIPH_BIO, cgd->ccb_h.path, 342 chasync, AC_FOUND_DEVICE, cgd); 343 344 if (status != CAM_REQ_CMP 345 && status != CAM_REQ_INPROG) 346 printf("chasync: Unable to probe new device " 347 "due to status 0x%x\n", status); 348 349 break; 350 351 } 352 default: 353 cam_periph_async(periph, code, path, arg); 354 break; 355 } 356 } 357 358 static cam_status 359 chregister(struct cam_periph *periph, void *arg) 360 { 361 struct ch_softc *softc; 362 struct ccb_setasync csa; 363 struct ccb_getdev *cgd; 364 365 cgd = (struct ccb_getdev *)arg; 366 if (periph == NULL) { 367 printf("chregister: periph was NULL!!\n"); 368 return(CAM_REQ_CMP_ERR); 369 } 370 371 if (cgd == NULL) { 372 printf("chregister: no getdev CCB, can't register device\n"); 373 return(CAM_REQ_CMP_ERR); 374 } 375 376 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 377 378 if (softc == NULL) { 379 printf("chregister: Unable to probe new device. " 380 "Unable to allocate softc\n"); 381 return(CAM_REQ_CMP_ERR); 382 } 383 384 bzero(softc, sizeof(*softc)); 385 softc->state = CH_STATE_PROBE; 386 periph->softc = softc; 387 cam_extend_set(chperiphs, periph->unit_number, periph); 388 softc->quirks = CH_Q_NONE; 389 390 /* 391 * Changers don't have a blocksize, and obviously don't support 392 * tagged queueing. 393 */ 394 devstat_add_entry(&softc->device_stats, "ch", 395 periph->unit_number, 0, 396 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 397 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 398 DEVSTAT_PRIORITY_OTHER); 399 400 /* Register the device */ 401 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 402 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 403 periph->unit_number); 404 405 /* 406 * Add an async callback so that we get 407 * notified if this device goes away. 408 */ 409 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 410 csa.ccb_h.func_code = XPT_SASYNC_CB; 411 csa.event_enable = AC_LOST_DEVICE; 412 csa.callback = chasync; 413 csa.callback_arg = periph; 414 xpt_action((union ccb *)&csa); 415 416 /* 417 * Lock this peripheral until we are setup. 418 * This first call can't block 419 */ 420 (void)cam_periph_lock(periph, PRIBIO); 421 xpt_schedule(periph, /*priority*/5); 422 423 return(CAM_REQ_CMP); 424 } 425 426 static int 427 chopen(dev_t dev, int flags, int fmt, struct thread *td) 428 { 429 struct cam_periph *periph; 430 struct ch_softc *softc; 431 int unit, error; 432 int s; 433 434 unit = CHUNIT(dev); 435 periph = cam_extend_get(chperiphs, unit); 436 437 if (periph == NULL) 438 return(ENXIO); 439 440 softc = (struct ch_softc *)periph->softc; 441 442 s = splsoftcam(); 443 if (softc->flags & CH_FLAG_INVALID) { 444 splx(s); 445 return(ENXIO); 446 } 447 448 if ((error = cam_periph_lock(periph, PRIBIO | PCATCH)) != 0) { 449 splx(s); 450 return (error); 451 } 452 453 splx(s); 454 455 if ((softc->flags & CH_FLAG_OPEN) == 0) { 456 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 457 return(ENXIO); 458 softc->flags |= CH_FLAG_OPEN; 459 } 460 461 /* 462 * Load information about this changer device into the softc. 463 */ 464 if ((error = chgetparams(periph)) != 0) { 465 softc->flags &= ~CH_FLAG_OPEN; 466 cam_periph_unlock(periph); 467 cam_periph_release(periph); 468 return(error); 469 } 470 471 cam_periph_unlock(periph); 472 473 return(error); 474 } 475 476 static int 477 chclose(dev_t dev, int flag, int fmt, struct thread *td) 478 { 479 struct cam_periph *periph; 480 struct ch_softc *softc; 481 int unit, error; 482 483 error = 0; 484 485 unit = CHUNIT(dev); 486 periph = cam_extend_get(chperiphs, unit); 487 if (periph == NULL) 488 return(ENXIO); 489 490 softc = (struct ch_softc *)periph->softc; 491 492 if ((error = cam_periph_lock(periph, PRIBIO)) != 0) 493 return(error); 494 495 softc->flags &= ~CH_FLAG_OPEN; 496 497 cam_periph_unlock(periph); 498 cam_periph_release(periph); 499 500 return(0); 501 } 502 503 static void 504 chstart(struct cam_periph *periph, union ccb *start_ccb) 505 { 506 struct ch_softc *softc; 507 int s; 508 509 softc = (struct ch_softc *)periph->softc; 510 511 switch (softc->state) { 512 case CH_STATE_NORMAL: 513 { 514 s = splbio(); 515 if (periph->immediate_priority <= periph->pinfo.priority){ 516 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 517 518 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 519 periph_links.sle); 520 periph->immediate_priority = CAM_PRIORITY_NONE; 521 splx(s); 522 wakeup(&periph->ccb_list); 523 } else 524 splx(s); 525 break; 526 } 527 case CH_STATE_PROBE: 528 { 529 int mode_buffer_len; 530 void *mode_buffer; 531 532 /* 533 * Include the block descriptor when calculating the mode 534 * buffer length, 535 */ 536 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 537 sizeof(struct scsi_mode_blk_desc) + 538 sizeof(struct page_element_address_assignment); 539 540 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_NOWAIT); 541 542 if (mode_buffer == NULL) { 543 printf("chstart: couldn't malloc mode sense data\n"); 544 break; 545 } 546 bzero(mode_buffer, mode_buffer_len); 547 548 /* 549 * Get the element address assignment page. 550 */ 551 scsi_mode_sense(&start_ccb->csio, 552 /* retries */ 1, 553 /* cbfcnp */ chdone, 554 /* tag_action */ MSG_SIMPLE_Q_TAG, 555 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 556 FALSE : TRUE, 557 /* page_code */ SMS_PAGE_CTRL_CURRENT, 558 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 559 /* param_buf */ (u_int8_t *)mode_buffer, 560 /* param_len */ mode_buffer_len, 561 /* sense_len */ SSD_FULL_SIZE, 562 /* timeout */ CH_TIMEOUT_MODE_SENSE); 563 564 start_ccb->ccb_h.ccb_bp = NULL; 565 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 566 xpt_action(start_ccb); 567 break; 568 } 569 } 570 } 571 572 static void 573 chdone(struct cam_periph *periph, union ccb *done_ccb) 574 { 575 struct ch_softc *softc; 576 struct ccb_scsiio *csio; 577 578 softc = (struct ch_softc *)periph->softc; 579 csio = &done_ccb->csio; 580 581 switch(done_ccb->ccb_h.ccb_state) { 582 case CH_CCB_PROBE: 583 { 584 struct scsi_mode_header_6 *mode_header; 585 struct page_element_address_assignment *ea; 586 char announce_buf[80]; 587 588 589 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 590 591 ea = (struct page_element_address_assignment *) 592 find_mode_page_6(mode_header); 593 594 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 595 596 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 597 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 598 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 599 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 600 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 601 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 602 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 603 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 604 softc->sc_picker = softc->sc_firsts[CHET_MT]; 605 606 #define PLURAL(c) (c) == 1 ? "" : "s" 607 snprintf(announce_buf, sizeof(announce_buf), 608 "%d slot%s, %d drive%s, " 609 "%d picker%s, %d portal%s", 610 softc->sc_counts[CHET_ST], 611 PLURAL(softc->sc_counts[CHET_ST]), 612 softc->sc_counts[CHET_DT], 613 PLURAL(softc->sc_counts[CHET_DT]), 614 softc->sc_counts[CHET_MT], 615 PLURAL(softc->sc_counts[CHET_MT]), 616 softc->sc_counts[CHET_IE], 617 PLURAL(softc->sc_counts[CHET_IE])); 618 #undef PLURAL 619 } else { 620 int error; 621 622 error = cherror(done_ccb, CAM_RETRY_SELTO, 623 SF_RETRY_UA | SF_NO_PRINT); 624 /* 625 * Retry any UNIT ATTENTION type errors. They 626 * are expected at boot. 627 */ 628 if (error == ERESTART) { 629 /* 630 * A retry was scheuled, so 631 * just return. 632 */ 633 return; 634 } else if (error != 0) { 635 int retry_scheduled; 636 struct scsi_mode_sense_6 *sms; 637 638 sms = (struct scsi_mode_sense_6 *) 639 done_ccb->csio.cdb_io.cdb_bytes; 640 641 /* 642 * Check to see if block descriptors were 643 * disabled. Some devices don't like that. 644 * We're taking advantage of the fact that 645 * the first few bytes of the 6 and 10 byte 646 * mode sense commands are the same. If 647 * block descriptors were disabled, enable 648 * them and re-send the command. 649 */ 650 if (sms->byte2 & SMS_DBD) { 651 sms->byte2 &= ~SMS_DBD; 652 xpt_action(done_ccb); 653 softc->quirks |= CH_Q_NO_DBD; 654 retry_scheduled = 1; 655 } else 656 retry_scheduled = 0; 657 658 /* Don't wedge this device's queue */ 659 cam_release_devq(done_ccb->ccb_h.path, 660 /*relsim_flags*/0, 661 /*reduction*/0, 662 /*timeout*/0, 663 /*getcount_only*/0); 664 665 if (retry_scheduled) 666 return; 667 668 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 669 == CAM_SCSI_STATUS_ERROR) 670 scsi_sense_print(&done_ccb->csio); 671 else { 672 xpt_print_path(periph->path); 673 printf("got CAM status %#x\n", 674 done_ccb->ccb_h.status); 675 } 676 xpt_print_path(periph->path); 677 printf("fatal error, failed to attach to" 678 " device\n"); 679 680 cam_periph_invalidate(periph); 681 682 announce_buf[0] = '\0'; 683 } 684 } 685 if (announce_buf[0] != '\0') 686 xpt_announce_periph(periph, announce_buf); 687 softc->state = CH_STATE_NORMAL; 688 free(mode_header, M_TEMP); 689 /* 690 * Since our peripheral may be invalidated by an error 691 * above or an external event, we must release our CCB 692 * before releasing the probe lock on the peripheral. 693 * The peripheral will only go away once the last lock 694 * is removed, and we need it around for the CCB release 695 * operation. 696 */ 697 xpt_release_ccb(done_ccb); 698 cam_periph_unlock(periph); 699 return; 700 } 701 case CH_CCB_WAITING: 702 { 703 /* Caller will release the CCB */ 704 wakeup(&done_ccb->ccb_h.cbfcnp); 705 return; 706 } 707 default: 708 break; 709 } 710 xpt_release_ccb(done_ccb); 711 } 712 713 static int 714 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 715 { 716 struct ch_softc *softc; 717 struct cam_periph *periph; 718 719 periph = xpt_path_periph(ccb->ccb_h.path); 720 softc = (struct ch_softc *)periph->softc; 721 722 return (cam_periph_error(ccb, cam_flags, sense_flags, 723 &softc->saved_ccb)); 724 } 725 726 static int 727 chioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 728 { 729 struct cam_periph *periph; 730 struct ch_softc *softc; 731 u_int8_t unit; 732 int error; 733 734 unit = CHUNIT(dev); 735 736 periph = cam_extend_get(chperiphs, unit); 737 if (periph == NULL) 738 return(ENXIO); 739 740 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 741 742 softc = (struct ch_softc *)periph->softc; 743 744 error = 0; 745 746 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 747 ("trying to do ioctl %#lx\n", cmd)); 748 749 /* 750 * If this command can change the device's state, we must 751 * have the device open for writing. 752 */ 753 switch (cmd) { 754 case CHIOGPICKER: 755 case CHIOGPARAMS: 756 case CHIOGSTATUS: 757 break; 758 759 default: 760 if ((flag & FWRITE) == 0) 761 return (EBADF); 762 } 763 764 switch (cmd) { 765 case CHIOMOVE: 766 error = chmove(periph, (struct changer_move *)addr); 767 break; 768 769 case CHIOEXCHANGE: 770 error = chexchange(periph, (struct changer_exchange *)addr); 771 break; 772 773 case CHIOPOSITION: 774 error = chposition(periph, (struct changer_position *)addr); 775 break; 776 777 case CHIOGPICKER: 778 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 779 break; 780 781 case CHIOSPICKER: 782 { 783 int new_picker = *(int *)addr; 784 785 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) 786 return (EINVAL); 787 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 788 break; 789 } 790 case CHIOGPARAMS: 791 { 792 struct changer_params *cp = (struct changer_params *)addr; 793 794 cp->cp_npickers = softc->sc_counts[CHET_MT]; 795 cp->cp_nslots = softc->sc_counts[CHET_ST]; 796 cp->cp_nportals = softc->sc_counts[CHET_IE]; 797 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 798 break; 799 } 800 case CHIOIELEM: 801 error = chielem(periph, *(unsigned int *)addr); 802 break; 803 804 case CHIOGSTATUS: 805 { 806 error = chgetelemstatus(periph, 807 (struct changer_element_status_request *) addr); 808 break; 809 } 810 811 case CHIOSETVOLTAG: 812 { 813 error = chsetvoltag(periph, 814 (struct changer_set_voltag_request *) addr); 815 break; 816 } 817 818 /* Implement prevent/allow? */ 819 820 default: 821 error = cam_periph_ioctl(periph, cmd, addr, cherror); 822 break; 823 } 824 825 return (error); 826 } 827 828 static int 829 chmove(struct cam_periph *periph, struct changer_move *cm) 830 { 831 struct ch_softc *softc; 832 u_int16_t fromelem, toelem; 833 union ccb *ccb; 834 int error; 835 836 error = 0; 837 softc = (struct ch_softc *)periph->softc; 838 839 /* 840 * Check arguments. 841 */ 842 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 843 return (EINVAL); 844 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 845 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 846 return (ENODEV); 847 848 /* 849 * Check the request against the changer's capabilities. 850 */ 851 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 852 return (ENODEV); 853 854 /* 855 * Calculate the source and destination elements. 856 */ 857 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 858 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 859 860 ccb = cam_periph_getccb(periph, /*priority*/ 1); 861 862 scsi_move_medium(&ccb->csio, 863 /* retries */ 1, 864 /* cbfcnp */ chdone, 865 /* tag_action */ MSG_SIMPLE_Q_TAG, 866 /* tea */ softc->sc_picker, 867 /* src */ fromelem, 868 /* dst */ toelem, 869 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 870 /* sense_len */ SSD_FULL_SIZE, 871 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 872 873 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 874 /*sense_flags*/ SF_RETRY_UA, 875 &softc->device_stats); 876 877 xpt_release_ccb(ccb); 878 879 return(error); 880 } 881 882 static int 883 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 884 { 885 struct ch_softc *softc; 886 u_int16_t src, dst1, dst2; 887 union ccb *ccb; 888 int error; 889 890 error = 0; 891 softc = (struct ch_softc *)periph->softc; 892 /* 893 * Check arguments. 894 */ 895 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 896 (ce->ce_sdsttype > CHET_DT)) 897 return (EINVAL); 898 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 899 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 900 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 901 return (ENODEV); 902 903 /* 904 * Check the request against the changer's capabilities. 905 */ 906 if (((softc->sc_exchangemask[ce->ce_srctype] & 907 (1 << ce->ce_fdsttype)) == 0) || 908 ((softc->sc_exchangemask[ce->ce_fdsttype] & 909 (1 << ce->ce_sdsttype)) == 0)) 910 return (ENODEV); 911 912 /* 913 * Calculate the source and destination elements. 914 */ 915 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 916 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 917 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 918 919 ccb = cam_periph_getccb(periph, /*priority*/ 1); 920 921 scsi_exchange_medium(&ccb->csio, 922 /* retries */ 1, 923 /* cbfcnp */ chdone, 924 /* tag_action */ MSG_SIMPLE_Q_TAG, 925 /* tea */ softc->sc_picker, 926 /* src */ src, 927 /* dst1 */ dst1, 928 /* dst2 */ dst2, 929 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 930 TRUE : FALSE, 931 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 932 TRUE : FALSE, 933 /* sense_len */ SSD_FULL_SIZE, 934 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 935 936 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 937 /*sense_flags*/ SF_RETRY_UA, 938 &softc->device_stats); 939 940 xpt_release_ccb(ccb); 941 942 return(error); 943 } 944 945 static int 946 chposition(struct cam_periph *periph, struct changer_position *cp) 947 { 948 struct ch_softc *softc; 949 u_int16_t dst; 950 union ccb *ccb; 951 int error; 952 953 error = 0; 954 softc = (struct ch_softc *)periph->softc; 955 956 /* 957 * Check arguments. 958 */ 959 if (cp->cp_type > CHET_DT) 960 return (EINVAL); 961 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 962 return (ENODEV); 963 964 /* 965 * Calculate the destination element. 966 */ 967 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 968 969 ccb = cam_periph_getccb(periph, /*priority*/ 1); 970 971 scsi_position_to_element(&ccb->csio, 972 /* retries */ 1, 973 /* cbfcnp */ chdone, 974 /* tag_action */ MSG_SIMPLE_Q_TAG, 975 /* tea */ softc->sc_picker, 976 /* dst */ dst, 977 /* invert */ (cp->cp_flags & CP_INVERT) ? 978 TRUE : FALSE, 979 /* sense_len */ SSD_FULL_SIZE, 980 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 981 982 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 983 /*sense_flags*/ SF_RETRY_UA, 984 &softc->device_stats); 985 986 xpt_release_ccb(ccb); 987 988 return(error); 989 } 990 991 /* 992 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 993 * to host native byte order in the volume serial number. The volume 994 * label as returned by the changer is transferred to user mode as 995 * nul-terminated string. Volume labels are truncated at the first 996 * space, as suggested by SCSI-2. 997 */ 998 static void 999 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 1000 { 1001 int i; 1002 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 1003 char c = voltag->vif[i]; 1004 if (c && c != ' ') 1005 uvoltag->cv_volid[i] = c; 1006 else 1007 break; 1008 } 1009 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 1010 } 1011 1012 /* 1013 * Copy an an element status descriptor to a user-mode 1014 * changer_element_status structure. 1015 */ 1016 1017 static void 1018 copy_element_status(struct ch_softc *softc, 1019 u_int16_t flags, 1020 struct read_element_status_descriptor *desc, 1021 struct changer_element_status *ces) 1022 { 1023 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1024 u_int16_t et; 1025 1026 ces->ces_int_addr = eaddr; 1027 /* set up logical address in element status */ 1028 for (et = CHET_MT; et <= CHET_DT; et++) { 1029 if ((softc->sc_firsts[et] <= eaddr) 1030 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1031 > eaddr)) { 1032 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1033 ces->ces_type = et; 1034 break; 1035 } 1036 } 1037 1038 ces->ces_flags = desc->flags1; 1039 1040 ces->ces_sensecode = desc->sense_code; 1041 ces->ces_sensequal = desc->sense_qual; 1042 1043 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1044 ces->ces_flags |= CES_INVERT; 1045 1046 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1047 1048 eaddr = scsi_2btoul(desc->ssea); 1049 1050 /* convert source address to logical format */ 1051 for (et = CHET_MT; et <= CHET_DT; et++) { 1052 if ((softc->sc_firsts[et] <= eaddr) 1053 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1054 > eaddr)) { 1055 ces->ces_source_addr = 1056 eaddr - softc->sc_firsts[et]; 1057 ces->ces_source_type = et; 1058 ces->ces_flags |= CES_SOURCE_VALID; 1059 break; 1060 } 1061 } 1062 1063 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1064 printf("ch: warning: could not map element source " 1065 "address %ud to a valid element type\n", 1066 eaddr); 1067 } 1068 1069 1070 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1071 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1072 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1073 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1074 1075 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1076 ces->ces_flags |= CES_SCSIID_VALID; 1077 ces->ces_scsi_id = desc->dt_scsi_addr; 1078 } 1079 1080 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1081 ces->ces_flags |= CES_LUN_VALID; 1082 ces->ces_scsi_lun = 1083 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1084 } 1085 } 1086 1087 static int 1088 chgetelemstatus(struct cam_periph *periph, 1089 struct changer_element_status_request *cesr) 1090 { 1091 struct read_element_status_header *st_hdr; 1092 struct read_element_status_page_header *pg_hdr; 1093 struct read_element_status_descriptor *desc; 1094 caddr_t data = NULL; 1095 size_t size, desclen; 1096 int avail, i, error = 0; 1097 struct changer_element_status *user_data = NULL; 1098 struct ch_softc *softc; 1099 union ccb *ccb; 1100 int chet = cesr->cesr_element_type; 1101 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1102 1103 softc = (struct ch_softc *)periph->softc; 1104 1105 /* perform argument checking */ 1106 1107 /* 1108 * Perform a range check on the cesr_element_{base,count} 1109 * request argument fields. 1110 */ 1111 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1112 || (cesr->cesr_element_base + cesr->cesr_element_count) 1113 > softc->sc_counts[chet]) 1114 return (EINVAL); 1115 1116 /* 1117 * Request one descriptor for the given element type. This 1118 * is used to determine the size of the descriptor so that 1119 * we can allocate enough storage for all of them. We assume 1120 * that the first one can fit into 1k. 1121 */ 1122 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 1123 1124 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1125 1126 scsi_read_element_status(&ccb->csio, 1127 /* retries */ 1, 1128 /* cbfcnp */ chdone, 1129 /* tag_action */ MSG_SIMPLE_Q_TAG, 1130 /* voltag */ want_voltags, 1131 /* sea */ softc->sc_firsts[chet], 1132 /* count */ 1, 1133 /* data_ptr */ data, 1134 /* dxfer_len */ 1024, 1135 /* sense_len */ SSD_FULL_SIZE, 1136 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1137 1138 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1139 /*sense_flags*/ SF_RETRY_UA, 1140 &softc->device_stats); 1141 1142 if (error) 1143 goto done; 1144 1145 st_hdr = (struct read_element_status_header *)data; 1146 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1147 sizeof(struct read_element_status_header)); 1148 desclen = scsi_2btoul(pg_hdr->edl); 1149 1150 size = sizeof(struct read_element_status_header) + 1151 sizeof(struct read_element_status_page_header) + 1152 (desclen * cesr->cesr_element_count); 1153 1154 /* 1155 * Reallocate storage for descriptors and get them from the 1156 * device. 1157 */ 1158 free(data, M_DEVBUF); 1159 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 1160 1161 scsi_read_element_status(&ccb->csio, 1162 /* retries */ 1, 1163 /* cbfcnp */ chdone, 1164 /* tag_action */ MSG_SIMPLE_Q_TAG, 1165 /* voltag */ want_voltags, 1166 /* sea */ softc->sc_firsts[chet] 1167 + cesr->cesr_element_base, 1168 /* count */ cesr->cesr_element_count, 1169 /* data_ptr */ data, 1170 /* dxfer_len */ size, 1171 /* sense_len */ SSD_FULL_SIZE, 1172 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1173 1174 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1175 /*sense_flags*/ SF_RETRY_UA, 1176 &softc->device_stats); 1177 1178 if (error) 1179 goto done; 1180 1181 /* 1182 * Fill in the user status array. 1183 */ 1184 st_hdr = (struct read_element_status_header *)data; 1185 avail = scsi_2btoul(st_hdr->count); 1186 1187 if (avail != cesr->cesr_element_count) { 1188 xpt_print_path(periph->path); 1189 printf("warning, READ ELEMENT STATUS avail != count\n"); 1190 } 1191 1192 user_data = (struct changer_element_status *) 1193 malloc(avail * sizeof(struct changer_element_status), 1194 M_DEVBUF, M_WAITOK | M_ZERO); 1195 1196 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1197 sizeof(struct read_element_status_header) + 1198 sizeof(struct read_element_status_page_header)); 1199 /* 1200 * Set up the individual element status structures 1201 */ 1202 for (i = 0; i < avail; ++i) { 1203 struct changer_element_status *ces = &(user_data[i]); 1204 1205 copy_element_status(softc, pg_hdr->flags, desc, ces); 1206 1207 desc = (struct read_element_status_descriptor *) 1208 ((uintptr_t)desc + desclen); 1209 } 1210 1211 /* Copy element status structures out to userspace. */ 1212 error = copyout(user_data, 1213 cesr->cesr_element_status, 1214 avail * sizeof(struct changer_element_status)); 1215 1216 done: 1217 xpt_release_ccb(ccb); 1218 1219 if (data != NULL) 1220 free(data, M_DEVBUF); 1221 if (user_data != NULL) 1222 free(user_data, M_DEVBUF); 1223 1224 return (error); 1225 } 1226 1227 static int 1228 chielem(struct cam_periph *periph, 1229 unsigned int timeout) 1230 { 1231 union ccb *ccb; 1232 struct ch_softc *softc; 1233 int error; 1234 1235 if (!timeout) { 1236 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1237 } else { 1238 timeout *= 1000; 1239 } 1240 1241 error = 0; 1242 softc = (struct ch_softc *)periph->softc; 1243 1244 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1245 1246 scsi_initialize_element_status(&ccb->csio, 1247 /* retries */ 1, 1248 /* cbfcnp */ chdone, 1249 /* tag_action */ MSG_SIMPLE_Q_TAG, 1250 /* sense_len */ SSD_FULL_SIZE, 1251 /* timeout */ timeout); 1252 1253 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1254 /*sense_flags*/ SF_RETRY_UA, 1255 &softc->device_stats); 1256 1257 xpt_release_ccb(ccb); 1258 1259 return(error); 1260 } 1261 1262 static int 1263 chsetvoltag(struct cam_periph *periph, 1264 struct changer_set_voltag_request *csvr) 1265 { 1266 union ccb *ccb; 1267 struct ch_softc *softc; 1268 u_int16_t ea; 1269 u_int8_t sac; 1270 struct scsi_send_volume_tag_parameters ssvtp; 1271 int error; 1272 int i; 1273 1274 error = 0; 1275 softc = (struct ch_softc *)periph->softc; 1276 1277 bzero(&ssvtp, sizeof(ssvtp)); 1278 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1279 ssvtp.vitf[i] = ' '; 1280 } 1281 1282 /* 1283 * Check arguments. 1284 */ 1285 if (csvr->csvr_type > CHET_DT) 1286 return EINVAL; 1287 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1288 return ENODEV; 1289 1290 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1291 1292 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1293 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1294 case CSVR_MODE_SET: 1295 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1296 break; 1297 case CSVR_MODE_REPLACE: 1298 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1299 break; 1300 case CSVR_MODE_CLEAR: 1301 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1302 break; 1303 default: 1304 error = EINVAL; 1305 goto out; 1306 } 1307 } else { 1308 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1309 case CSVR_MODE_SET: 1310 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1311 break; 1312 case CSVR_MODE_REPLACE: 1313 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1314 break; 1315 case CSVR_MODE_CLEAR: 1316 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1317 break; 1318 default: 1319 error = EINVAL; 1320 goto out; 1321 } 1322 } 1323 1324 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1325 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1326 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1327 1328 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1329 1330 scsi_send_volume_tag(&ccb->csio, 1331 /* retries */ 1, 1332 /* cbfcnp */ chdone, 1333 /* tag_action */ MSG_SIMPLE_Q_TAG, 1334 /* element_address */ ea, 1335 /* send_action_code */ sac, 1336 /* parameters */ &ssvtp, 1337 /* sense_len */ SSD_FULL_SIZE, 1338 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1339 1340 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1341 /*sense_flags*/ SF_RETRY_UA, 1342 &softc->device_stats); 1343 1344 xpt_release_ccb(ccb); 1345 1346 out: 1347 return error; 1348 } 1349 1350 static int 1351 chgetparams(struct cam_periph *periph) 1352 { 1353 union ccb *ccb; 1354 struct ch_softc *softc; 1355 void *mode_buffer; 1356 int mode_buffer_len; 1357 struct page_element_address_assignment *ea; 1358 struct page_device_capabilities *cap; 1359 int error, from, dbd; 1360 u_int8_t *moves, *exchanges; 1361 1362 error = 0; 1363 1364 softc = (struct ch_softc *)periph->softc; 1365 1366 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1367 1368 /* 1369 * The scsi_mode_sense_data structure is just a convenience 1370 * structure that allows us to easily calculate the worst-case 1371 * storage size of the mode sense buffer. 1372 */ 1373 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1374 1375 mode_buffer = malloc(mode_buffer_len, M_TEMP, M_NOWAIT); 1376 1377 if (mode_buffer == NULL) { 1378 printf("chgetparams: couldn't malloc mode sense data\n"); 1379 return(ENOSPC); 1380 } 1381 1382 bzero(mode_buffer, mode_buffer_len); 1383 1384 if (softc->quirks & CH_Q_NO_DBD) 1385 dbd = FALSE; 1386 else 1387 dbd = TRUE; 1388 1389 /* 1390 * Get the element address assignment page. 1391 */ 1392 scsi_mode_sense(&ccb->csio, 1393 /* retries */ 1, 1394 /* cbfcnp */ chdone, 1395 /* tag_action */ MSG_SIMPLE_Q_TAG, 1396 /* dbd */ dbd, 1397 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1398 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1399 /* param_buf */ (u_int8_t *)mode_buffer, 1400 /* param_len */ mode_buffer_len, 1401 /* sense_len */ SSD_FULL_SIZE, 1402 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1403 1404 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1405 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1406 &softc->device_stats); 1407 1408 if (error) { 1409 if (dbd) { 1410 struct scsi_mode_sense_6 *sms; 1411 1412 sms = (struct scsi_mode_sense_6 *) 1413 ccb->csio.cdb_io.cdb_bytes; 1414 1415 sms->byte2 &= ~SMS_DBD; 1416 error = cam_periph_runccb(ccb, cherror, 1417 /*cam_flags*/ CAM_RETRY_SELTO, 1418 /*sense_flags*/ SF_RETRY_UA, 1419 &softc->device_stats); 1420 } else { 1421 /* 1422 * Since we disabled sense printing above, print 1423 * out the sense here since we got an error. 1424 */ 1425 scsi_sense_print(&ccb->csio); 1426 } 1427 1428 if (error) { 1429 xpt_print_path(periph->path); 1430 printf("chgetparams: error getting element " 1431 "address page\n"); 1432 xpt_release_ccb(ccb); 1433 free(mode_buffer, M_TEMP); 1434 return(error); 1435 } 1436 } 1437 1438 ea = (struct page_element_address_assignment *) 1439 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1440 1441 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1442 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1443 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1444 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1445 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1446 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1447 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1448 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1449 1450 bzero(mode_buffer, mode_buffer_len); 1451 1452 /* 1453 * Now get the device capabilities page. 1454 */ 1455 scsi_mode_sense(&ccb->csio, 1456 /* retries */ 1, 1457 /* cbfcnp */ chdone, 1458 /* tag_action */ MSG_SIMPLE_Q_TAG, 1459 /* dbd */ dbd, 1460 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1461 /* page */ CH_DEVICE_CAP_PAGE, 1462 /* param_buf */ (u_int8_t *)mode_buffer, 1463 /* param_len */ mode_buffer_len, 1464 /* sense_len */ SSD_FULL_SIZE, 1465 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1466 1467 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1468 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1469 &softc->device_stats); 1470 1471 if (error) { 1472 if (dbd) { 1473 struct scsi_mode_sense_6 *sms; 1474 1475 sms = (struct scsi_mode_sense_6 *) 1476 ccb->csio.cdb_io.cdb_bytes; 1477 1478 sms->byte2 &= ~SMS_DBD; 1479 error = cam_periph_runccb(ccb, cherror, 1480 /*cam_flags*/ CAM_RETRY_SELTO, 1481 /*sense_flags*/ SF_RETRY_UA, 1482 &softc->device_stats); 1483 } else { 1484 /* 1485 * Since we disabled sense printing above, print 1486 * out the sense here since we got an error. 1487 */ 1488 scsi_sense_print(&ccb->csio); 1489 } 1490 1491 if (error) { 1492 xpt_print_path(periph->path); 1493 printf("chgetparams: error getting device " 1494 "capabilities page\n"); 1495 xpt_release_ccb(ccb); 1496 free(mode_buffer, M_TEMP); 1497 return(error); 1498 } 1499 } 1500 1501 xpt_release_ccb(ccb); 1502 1503 cap = (struct page_device_capabilities *) 1504 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1505 1506 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1507 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1508 moves = &cap->move_from_mt; 1509 exchanges = &cap->exchange_with_mt; 1510 for (from = CHET_MT; from <= CHET_DT; ++from) { 1511 softc->sc_movemask[from] = moves[from]; 1512 softc->sc_exchangemask[from] = exchanges[from]; 1513 } 1514 1515 free(mode_buffer, M_TEMP); 1516 1517 return(error); 1518 } 1519 1520 void 1521 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1522 void (*cbfcnp)(struct cam_periph *, union ccb *), 1523 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1524 u_int32_t dst, int invert, u_int8_t sense_len, 1525 u_int32_t timeout) 1526 { 1527 struct scsi_move_medium *scsi_cmd; 1528 1529 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1530 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1531 1532 scsi_cmd->opcode = MOVE_MEDIUM; 1533 1534 scsi_ulto2b(tea, scsi_cmd->tea); 1535 scsi_ulto2b(src, scsi_cmd->src); 1536 scsi_ulto2b(dst, scsi_cmd->dst); 1537 1538 if (invert) 1539 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1540 1541 cam_fill_csio(csio, 1542 retries, 1543 cbfcnp, 1544 /*flags*/ CAM_DIR_NONE, 1545 tag_action, 1546 /*data_ptr*/ NULL, 1547 /*dxfer_len*/ 0, 1548 sense_len, 1549 sizeof(*scsi_cmd), 1550 timeout); 1551 } 1552 1553 void 1554 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1555 void (*cbfcnp)(struct cam_periph *, union ccb *), 1556 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1557 u_int32_t dst1, u_int32_t dst2, int invert1, 1558 int invert2, u_int8_t sense_len, u_int32_t timeout) 1559 { 1560 struct scsi_exchange_medium *scsi_cmd; 1561 1562 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1563 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1564 1565 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1566 1567 scsi_ulto2b(tea, scsi_cmd->tea); 1568 scsi_ulto2b(src, scsi_cmd->src); 1569 scsi_ulto2b(dst1, scsi_cmd->fdst); 1570 scsi_ulto2b(dst2, scsi_cmd->sdst); 1571 1572 if (invert1) 1573 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1574 1575 if (invert2) 1576 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1577 1578 cam_fill_csio(csio, 1579 retries, 1580 cbfcnp, 1581 /*flags*/ CAM_DIR_NONE, 1582 tag_action, 1583 /*data_ptr*/ NULL, 1584 /*dxfer_len*/ 0, 1585 sense_len, 1586 sizeof(*scsi_cmd), 1587 timeout); 1588 } 1589 1590 void 1591 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1592 void (*cbfcnp)(struct cam_periph *, union ccb *), 1593 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1594 int invert, u_int8_t sense_len, u_int32_t timeout) 1595 { 1596 struct scsi_position_to_element *scsi_cmd; 1597 1598 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1599 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1600 1601 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1602 1603 scsi_ulto2b(tea, scsi_cmd->tea); 1604 scsi_ulto2b(dst, scsi_cmd->dst); 1605 1606 if (invert) 1607 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1608 1609 cam_fill_csio(csio, 1610 retries, 1611 cbfcnp, 1612 /*flags*/ CAM_DIR_NONE, 1613 tag_action, 1614 /*data_ptr*/ NULL, 1615 /*dxfer_len*/ 0, 1616 sense_len, 1617 sizeof(*scsi_cmd), 1618 timeout); 1619 } 1620 1621 void 1622 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1623 void (*cbfcnp)(struct cam_periph *, union ccb *), 1624 u_int8_t tag_action, int voltag, u_int32_t sea, 1625 u_int32_t count, u_int8_t *data_ptr, 1626 u_int32_t dxfer_len, u_int8_t sense_len, 1627 u_int32_t timeout) 1628 { 1629 struct scsi_read_element_status *scsi_cmd; 1630 1631 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1632 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1633 1634 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1635 1636 scsi_ulto2b(sea, scsi_cmd->sea); 1637 scsi_ulto2b(count, scsi_cmd->count); 1638 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1639 1640 if (voltag) 1641 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1642 1643 cam_fill_csio(csio, 1644 retries, 1645 cbfcnp, 1646 /*flags*/ CAM_DIR_IN, 1647 tag_action, 1648 data_ptr, 1649 dxfer_len, 1650 sense_len, 1651 sizeof(*scsi_cmd), 1652 timeout); 1653 } 1654 1655 void 1656 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1657 void (*cbfcnp)(struct cam_periph *, union ccb *), 1658 u_int8_t tag_action, u_int8_t sense_len, 1659 u_int32_t timeout) 1660 { 1661 struct scsi_initialize_element_status *scsi_cmd; 1662 1663 scsi_cmd = (struct scsi_initialize_element_status *) 1664 &csio->cdb_io.cdb_bytes; 1665 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1666 1667 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1668 1669 cam_fill_csio(csio, 1670 retries, 1671 cbfcnp, 1672 /*flags*/ CAM_DIR_NONE, 1673 tag_action, 1674 /* data_ptr */ NULL, 1675 /* dxfer_len */ 0, 1676 sense_len, 1677 sizeof(*scsi_cmd), 1678 timeout); 1679 } 1680 1681 void 1682 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1683 void (*cbfcnp)(struct cam_periph *, union ccb *), 1684 u_int8_t tag_action, 1685 u_int16_t element_address, 1686 u_int8_t send_action_code, 1687 struct scsi_send_volume_tag_parameters *parameters, 1688 u_int8_t sense_len, u_int32_t timeout) 1689 { 1690 struct scsi_send_volume_tag *scsi_cmd; 1691 1692 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1693 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1694 1695 scsi_cmd->opcode = SEND_VOLUME_TAG; 1696 scsi_ulto2b(element_address, scsi_cmd->ea); 1697 scsi_cmd->sac = send_action_code; 1698 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1699 1700 cam_fill_csio(csio, 1701 retries, 1702 cbfcnp, 1703 /*flags*/ CAM_DIR_OUT, 1704 tag_action, 1705 /* data_ptr */ (u_int8_t *) parameters, 1706 sizeof(*parameters), 1707 sense_len, 1708 sizeof(*scsi_cmd), 1709 timeout); 1710 } 1711