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