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