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_flags; 112 113 typedef enum { 114 CH_STATE_PROBE, 115 CH_STATE_NORMAL 116 } ch_state; 117 118 typedef enum { 119 CH_CCB_PROBE, 120 CH_CCB_WAITING 121 } ch_ccb_types; 122 123 typedef enum { 124 CH_Q_NONE = 0x00, 125 CH_Q_NO_DBD = 0x01 126 } ch_quirks; 127 128 #define ccb_state ppriv_field0 129 #define ccb_bp ppriv_ptr1 130 131 struct scsi_mode_sense_data { 132 struct scsi_mode_header_6 header; 133 struct scsi_mode_blk_desc blk_desc; 134 union { 135 struct page_element_address_assignment ea; 136 struct page_transport_geometry_parameters tg; 137 struct page_device_capabilities cap; 138 } pages; 139 }; 140 141 struct ch_softc { 142 ch_flags flags; 143 ch_state state; 144 ch_quirks quirks; 145 union ccb saved_ccb; 146 struct devstat *device_stats; 147 struct cdev *dev; 148 int open_count; 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 = D_TRACKCLOSE, 215 .d_open = chopen, 216 .d_close = chclose, 217 .d_ioctl = chioctl, 218 .d_name = "ch", 219 }; 220 221 static 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 chdevgonecb(void *arg) 242 { 243 struct cam_sim *sim; 244 struct ch_softc *softc; 245 struct cam_periph *periph; 246 int i; 247 248 periph = (struct cam_periph *)arg; 249 sim = periph->sim; 250 softc = (struct ch_softc *)periph->softc; 251 252 KASSERT(softc->open_count >= 0, ("Negative open count %d", 253 softc->open_count)); 254 255 mtx_lock(sim->mtx); 256 257 /* 258 * When we get this callback, we will get no more close calls from 259 * devfs. So if we have any dangling opens, we need to release the 260 * reference held for that particular context. 261 */ 262 for (i = 0; i < softc->open_count; i++) 263 cam_periph_release_locked(periph); 264 265 softc->open_count = 0; 266 267 /* 268 * Release the reference held for the device node, it is gone now. 269 */ 270 cam_periph_release_locked(periph); 271 272 /* 273 * We reference the SIM lock directly here, instead of using 274 * cam_periph_unlock(). The reason is that the final call to 275 * cam_periph_release_locked() above could result in the periph 276 * getting freed. If that is the case, dereferencing the periph 277 * with a cam_periph_unlock() call would cause a page fault. 278 */ 279 mtx_unlock(sim->mtx); 280 } 281 282 static void 283 choninvalidate(struct cam_periph *periph) 284 { 285 struct ch_softc *softc; 286 287 softc = (struct ch_softc *)periph->softc; 288 289 /* 290 * De-register any async callbacks. 291 */ 292 xpt_register_async(0, chasync, periph, periph->path); 293 294 softc->flags |= CH_FLAG_INVALID; 295 296 /* 297 * Tell devfs this device has gone away, and ask for a callback 298 * when it has cleaned up its state. 299 */ 300 destroy_dev_sched_cb(softc->dev, chdevgonecb, periph); 301 302 xpt_print(periph->path, "lost device\n"); 303 304 } 305 306 static void 307 chcleanup(struct cam_periph *periph) 308 { 309 struct ch_softc *softc; 310 311 softc = (struct ch_softc *)periph->softc; 312 313 xpt_print(periph->path, "removing device entry\n"); 314 315 devstat_remove_entry(softc->device_stats); 316 317 free(softc, M_DEVBUF); 318 } 319 320 static void 321 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 322 { 323 struct cam_periph *periph; 324 325 periph = (struct cam_periph *)callback_arg; 326 327 switch(code) { 328 case AC_FOUND_DEVICE: 329 { 330 struct ccb_getdev *cgd; 331 cam_status status; 332 333 cgd = (struct ccb_getdev *)arg; 334 if (cgd == NULL) 335 break; 336 337 if (cgd->protocol != PROTO_SCSI) 338 break; 339 340 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 341 break; 342 343 /* 344 * Allocate a peripheral instance for 345 * this device and start the probe 346 * process. 347 */ 348 status = cam_periph_alloc(chregister, choninvalidate, 349 chcleanup, chstart, "ch", 350 CAM_PERIPH_BIO, cgd->ccb_h.path, 351 chasync, AC_FOUND_DEVICE, cgd); 352 353 if (status != CAM_REQ_CMP 354 && status != CAM_REQ_INPROG) 355 printf("chasync: Unable to probe new device " 356 "due to status 0x%x\n", status); 357 358 break; 359 360 } 361 default: 362 cam_periph_async(periph, code, path, arg); 363 break; 364 } 365 } 366 367 static cam_status 368 chregister(struct cam_periph *periph, void *arg) 369 { 370 struct ch_softc *softc; 371 struct ccb_getdev *cgd; 372 struct ccb_pathinq cpi; 373 374 cgd = (struct ccb_getdev *)arg; 375 if (cgd == NULL) { 376 printf("chregister: no getdev CCB, can't register device\n"); 377 return(CAM_REQ_CMP_ERR); 378 } 379 380 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 381 382 if (softc == NULL) { 383 printf("chregister: Unable to probe new device. " 384 "Unable to allocate softc\n"); 385 return(CAM_REQ_CMP_ERR); 386 } 387 388 bzero(softc, sizeof(*softc)); 389 softc->state = CH_STATE_PROBE; 390 periph->softc = softc; 391 softc->quirks = CH_Q_NONE; 392 393 bzero(&cpi, sizeof(cpi)); 394 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 395 cpi.ccb_h.func_code = XPT_PATH_INQ; 396 xpt_action((union ccb *)&cpi); 397 398 /* 399 * Changers don't have a blocksize, and obviously don't support 400 * tagged queueing. 401 */ 402 cam_periph_unlock(periph); 403 softc->device_stats = devstat_new_entry("ch", 404 periph->unit_number, 0, 405 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 406 SID_TYPE(&cgd->inq_data) | 407 XPORT_DEVSTAT_TYPE(cpi.transport), 408 DEVSTAT_PRIORITY_OTHER); 409 410 /* 411 * Acquire a reference to the periph before we create the devfs 412 * instance for it. We'll release this reference once the devfs 413 * instance has been freed. 414 */ 415 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 416 xpt_print(periph->path, "%s: lost periph during " 417 "registration!\n", __func__); 418 cam_periph_lock(periph); 419 return (CAM_REQ_CMP_ERR); 420 } 421 422 423 /* Register the device */ 424 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 425 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 426 periph->unit_number); 427 cam_periph_lock(periph); 428 softc->dev->si_drv1 = periph; 429 430 /* 431 * Add an async callback so that we get 432 * notified if this device goes away. 433 */ 434 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path); 435 436 /* 437 * Lock this periph until we are setup. 438 * This first call can't block 439 */ 440 (void)cam_periph_hold(periph, PRIBIO); 441 xpt_schedule(periph, CAM_PRIORITY_DEV); 442 443 return(CAM_REQ_CMP); 444 } 445 446 static int 447 chopen(struct cdev *dev, int flags, int fmt, struct thread *td) 448 { 449 struct cam_periph *periph; 450 struct ch_softc *softc; 451 int error; 452 453 periph = (struct cam_periph *)dev->si_drv1; 454 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 455 return (ENXIO); 456 457 softc = (struct ch_softc *)periph->softc; 458 459 cam_periph_lock(periph); 460 461 if (softc->flags & CH_FLAG_INVALID) { 462 cam_periph_release_locked(periph); 463 cam_periph_unlock(periph); 464 return(ENXIO); 465 } 466 467 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 468 cam_periph_unlock(periph); 469 cam_periph_release(periph); 470 return (error); 471 } 472 473 /* 474 * Load information about this changer device into the softc. 475 */ 476 if ((error = chgetparams(periph)) != 0) { 477 cam_periph_release_locked(periph); 478 cam_periph_unlock(periph); 479 return(error); 480 } 481 482 cam_periph_unhold(periph); 483 484 softc->open_count++; 485 486 cam_periph_unlock(periph); 487 488 return(error); 489 } 490 491 static int 492 chclose(struct cdev *dev, int flag, int fmt, struct thread *td) 493 { 494 struct cam_sim *sim; 495 struct cam_periph *periph; 496 struct ch_softc *softc; 497 498 periph = (struct cam_periph *)dev->si_drv1; 499 if (periph == NULL) 500 return(ENXIO); 501 502 sim = periph->sim; 503 softc = (struct ch_softc *)periph->softc; 504 505 mtx_lock(sim->mtx); 506 507 softc->open_count--; 508 509 cam_periph_release_locked(periph); 510 511 /* 512 * We reference the SIM lock directly here, instead of using 513 * cam_periph_unlock(). The reason is that the call to 514 * cam_periph_release_locked() above could result in the periph 515 * getting freed. If that is the case, dereferencing the periph 516 * with a cam_periph_unlock() call would cause a page fault. 517 * 518 * cam_periph_release() avoids this problem using the same method, 519 * but we're manually acquiring and dropping the lock here to 520 * protect the open count and avoid another lock acquisition and 521 * release. 522 */ 523 mtx_unlock(sim->mtx); 524 525 return(0); 526 } 527 528 static void 529 chstart(struct cam_periph *periph, union ccb *start_ccb) 530 { 531 struct ch_softc *softc; 532 533 softc = (struct ch_softc *)periph->softc; 534 535 switch (softc->state) { 536 case CH_STATE_NORMAL: 537 { 538 if (periph->immediate_priority <= periph->pinfo.priority){ 539 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 540 541 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 542 periph_links.sle); 543 periph->immediate_priority = CAM_PRIORITY_NONE; 544 wakeup(&periph->ccb_list); 545 } 546 break; 547 } 548 case CH_STATE_PROBE: 549 { 550 int mode_buffer_len; 551 void *mode_buffer; 552 553 /* 554 * Include the block descriptor when calculating the mode 555 * buffer length, 556 */ 557 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 558 sizeof(struct scsi_mode_blk_desc) + 559 sizeof(struct page_element_address_assignment); 560 561 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 562 563 if (mode_buffer == NULL) { 564 printf("chstart: couldn't malloc mode sense data\n"); 565 break; 566 } 567 bzero(mode_buffer, mode_buffer_len); 568 569 /* 570 * Get the element address assignment page. 571 */ 572 scsi_mode_sense(&start_ccb->csio, 573 /* retries */ 1, 574 /* cbfcnp */ chdone, 575 /* tag_action */ MSG_SIMPLE_Q_TAG, 576 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 577 FALSE : TRUE, 578 /* page_code */ SMS_PAGE_CTRL_CURRENT, 579 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 580 /* param_buf */ (u_int8_t *)mode_buffer, 581 /* param_len */ mode_buffer_len, 582 /* sense_len */ SSD_FULL_SIZE, 583 /* timeout */ CH_TIMEOUT_MODE_SENSE); 584 585 start_ccb->ccb_h.ccb_bp = NULL; 586 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 587 xpt_action(start_ccb); 588 break; 589 } 590 } 591 } 592 593 static void 594 chdone(struct cam_periph *periph, union ccb *done_ccb) 595 { 596 struct ch_softc *softc; 597 struct ccb_scsiio *csio; 598 599 softc = (struct ch_softc *)periph->softc; 600 csio = &done_ccb->csio; 601 602 switch(done_ccb->ccb_h.ccb_state) { 603 case CH_CCB_PROBE: 604 { 605 struct scsi_mode_header_6 *mode_header; 606 struct page_element_address_assignment *ea; 607 char announce_buf[80]; 608 609 610 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 611 612 ea = (struct page_element_address_assignment *) 613 find_mode_page_6(mode_header); 614 615 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 616 617 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 618 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 619 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 620 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 621 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 622 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 623 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 624 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 625 softc->sc_picker = softc->sc_firsts[CHET_MT]; 626 627 #define PLURAL(c) (c) == 1 ? "" : "s" 628 snprintf(announce_buf, sizeof(announce_buf), 629 "%d slot%s, %d drive%s, " 630 "%d picker%s, %d portal%s", 631 softc->sc_counts[CHET_ST], 632 PLURAL(softc->sc_counts[CHET_ST]), 633 softc->sc_counts[CHET_DT], 634 PLURAL(softc->sc_counts[CHET_DT]), 635 softc->sc_counts[CHET_MT], 636 PLURAL(softc->sc_counts[CHET_MT]), 637 softc->sc_counts[CHET_IE], 638 PLURAL(softc->sc_counts[CHET_IE])); 639 #undef PLURAL 640 } else { 641 int error; 642 643 error = cherror(done_ccb, CAM_RETRY_SELTO, 644 SF_RETRY_UA | SF_NO_PRINT); 645 /* 646 * Retry any UNIT ATTENTION type errors. They 647 * are expected at boot. 648 */ 649 if (error == ERESTART) { 650 /* 651 * A retry was scheuled, so 652 * just return. 653 */ 654 return; 655 } else if (error != 0) { 656 int retry_scheduled; 657 struct scsi_mode_sense_6 *sms; 658 659 sms = (struct scsi_mode_sense_6 *) 660 done_ccb->csio.cdb_io.cdb_bytes; 661 662 /* 663 * Check to see if block descriptors were 664 * disabled. Some devices don't like that. 665 * We're taking advantage of the fact that 666 * the first few bytes of the 6 and 10 byte 667 * mode sense commands are the same. If 668 * block descriptors were disabled, enable 669 * them and re-send the command. 670 */ 671 if (sms->byte2 & SMS_DBD) { 672 sms->byte2 &= ~SMS_DBD; 673 xpt_action(done_ccb); 674 softc->quirks |= CH_Q_NO_DBD; 675 retry_scheduled = 1; 676 } else 677 retry_scheduled = 0; 678 679 /* Don't wedge this device's queue */ 680 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 681 cam_release_devq(done_ccb->ccb_h.path, 682 /*relsim_flags*/0, 683 /*reduction*/0, 684 /*timeout*/0, 685 /*getcount_only*/0); 686 687 if (retry_scheduled) 688 return; 689 690 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 691 == CAM_SCSI_STATUS_ERROR) 692 scsi_sense_print(&done_ccb->csio); 693 else { 694 xpt_print(periph->path, 695 "got CAM status %#x\n", 696 done_ccb->ccb_h.status); 697 } 698 xpt_print(periph->path, "fatal error, failed " 699 "to attach to device\n"); 700 701 cam_periph_invalidate(periph); 702 703 announce_buf[0] = '\0'; 704 } 705 } 706 if (announce_buf[0] != '\0') 707 xpt_announce_periph(periph, announce_buf); 708 softc->state = CH_STATE_NORMAL; 709 free(mode_header, M_SCSICH); 710 /* 711 * Since our peripheral may be invalidated by an error 712 * above or an external event, we must release our CCB 713 * before releasing the probe lock on the peripheral. 714 * The peripheral will only go away once the last lock 715 * is removed, and we need it around for the CCB release 716 * operation. 717 */ 718 xpt_release_ccb(done_ccb); 719 cam_periph_unhold(periph); 720 return; 721 } 722 case CH_CCB_WAITING: 723 { 724 /* Caller will release the CCB */ 725 wakeup(&done_ccb->ccb_h.cbfcnp); 726 return; 727 } 728 default: 729 break; 730 } 731 xpt_release_ccb(done_ccb); 732 } 733 734 static int 735 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 736 { 737 struct ch_softc *softc; 738 struct cam_periph *periph; 739 740 periph = xpt_path_periph(ccb->ccb_h.path); 741 softc = (struct ch_softc *)periph->softc; 742 743 return (cam_periph_error(ccb, cam_flags, sense_flags, 744 &softc->saved_ccb)); 745 } 746 747 static int 748 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 749 { 750 struct cam_periph *periph; 751 struct ch_softc *softc; 752 int error; 753 754 periph = (struct cam_periph *)dev->si_drv1; 755 if (periph == NULL) 756 return(ENXIO); 757 758 cam_periph_lock(periph); 759 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 760 761 softc = (struct ch_softc *)periph->softc; 762 763 error = 0; 764 765 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 766 ("trying to do ioctl %#lx\n", cmd)); 767 768 /* 769 * If this command can change the device's state, we must 770 * have the device open for writing. 771 */ 772 switch (cmd) { 773 case CHIOGPICKER: 774 case CHIOGPARAMS: 775 case CHIOGSTATUS: 776 break; 777 778 default: 779 if ((flag & FWRITE) == 0) { 780 cam_periph_unlock(periph); 781 return (EBADF); 782 } 783 } 784 785 switch (cmd) { 786 case CHIOMOVE: 787 error = chmove(periph, (struct changer_move *)addr); 788 break; 789 790 case CHIOEXCHANGE: 791 error = chexchange(periph, (struct changer_exchange *)addr); 792 break; 793 794 case CHIOPOSITION: 795 error = chposition(periph, (struct changer_position *)addr); 796 break; 797 798 case CHIOGPICKER: 799 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 800 break; 801 802 case CHIOSPICKER: 803 { 804 int new_picker = *(int *)addr; 805 806 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) { 807 error = EINVAL; 808 break; 809 } 810 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 811 break; 812 } 813 case CHIOGPARAMS: 814 { 815 struct changer_params *cp = (struct changer_params *)addr; 816 817 cp->cp_npickers = softc->sc_counts[CHET_MT]; 818 cp->cp_nslots = softc->sc_counts[CHET_ST]; 819 cp->cp_nportals = softc->sc_counts[CHET_IE]; 820 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 821 break; 822 } 823 case CHIOIELEM: 824 error = chielem(periph, *(unsigned int *)addr); 825 break; 826 827 case CHIOGSTATUS: 828 { 829 error = chgetelemstatus(periph, 830 (struct changer_element_status_request *) addr); 831 break; 832 } 833 834 case CHIOSETVOLTAG: 835 { 836 error = chsetvoltag(periph, 837 (struct changer_set_voltag_request *) addr); 838 break; 839 } 840 841 /* Implement prevent/allow? */ 842 843 default: 844 error = cam_periph_ioctl(periph, cmd, addr, cherror); 845 break; 846 } 847 848 cam_periph_unlock(periph); 849 return (error); 850 } 851 852 static int 853 chmove(struct cam_periph *periph, struct changer_move *cm) 854 { 855 struct ch_softc *softc; 856 u_int16_t fromelem, toelem; 857 union ccb *ccb; 858 int error; 859 860 error = 0; 861 softc = (struct ch_softc *)periph->softc; 862 863 /* 864 * Check arguments. 865 */ 866 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 867 return (EINVAL); 868 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 869 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 870 return (ENODEV); 871 872 /* 873 * Check the request against the changer's capabilities. 874 */ 875 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 876 return (ENODEV); 877 878 /* 879 * Calculate the source and destination elements. 880 */ 881 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 882 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 883 884 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 885 886 scsi_move_medium(&ccb->csio, 887 /* retries */ 1, 888 /* cbfcnp */ chdone, 889 /* tag_action */ MSG_SIMPLE_Q_TAG, 890 /* tea */ softc->sc_picker, 891 /* src */ fromelem, 892 /* dst */ toelem, 893 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 894 /* sense_len */ SSD_FULL_SIZE, 895 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 896 897 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 898 /*sense_flags*/ SF_RETRY_UA, 899 softc->device_stats); 900 901 xpt_release_ccb(ccb); 902 903 return(error); 904 } 905 906 static int 907 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 908 { 909 struct ch_softc *softc; 910 u_int16_t src, dst1, dst2; 911 union ccb *ccb; 912 int error; 913 914 error = 0; 915 softc = (struct ch_softc *)periph->softc; 916 /* 917 * Check arguments. 918 */ 919 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 920 (ce->ce_sdsttype > CHET_DT)) 921 return (EINVAL); 922 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 923 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 924 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 925 return (ENODEV); 926 927 /* 928 * Check the request against the changer's capabilities. 929 */ 930 if (((softc->sc_exchangemask[ce->ce_srctype] & 931 (1 << ce->ce_fdsttype)) == 0) || 932 ((softc->sc_exchangemask[ce->ce_fdsttype] & 933 (1 << ce->ce_sdsttype)) == 0)) 934 return (ENODEV); 935 936 /* 937 * Calculate the source and destination elements. 938 */ 939 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 940 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 941 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 942 943 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 944 945 scsi_exchange_medium(&ccb->csio, 946 /* retries */ 1, 947 /* cbfcnp */ chdone, 948 /* tag_action */ MSG_SIMPLE_Q_TAG, 949 /* tea */ softc->sc_picker, 950 /* src */ src, 951 /* dst1 */ dst1, 952 /* dst2 */ dst2, 953 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 954 TRUE : FALSE, 955 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 956 TRUE : FALSE, 957 /* sense_len */ SSD_FULL_SIZE, 958 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 959 960 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 961 /*sense_flags*/ SF_RETRY_UA, 962 softc->device_stats); 963 964 xpt_release_ccb(ccb); 965 966 return(error); 967 } 968 969 static int 970 chposition(struct cam_periph *periph, struct changer_position *cp) 971 { 972 struct ch_softc *softc; 973 u_int16_t dst; 974 union ccb *ccb; 975 int error; 976 977 error = 0; 978 softc = (struct ch_softc *)periph->softc; 979 980 /* 981 * Check arguments. 982 */ 983 if (cp->cp_type > CHET_DT) 984 return (EINVAL); 985 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 986 return (ENODEV); 987 988 /* 989 * Calculate the destination element. 990 */ 991 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 992 993 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 994 995 scsi_position_to_element(&ccb->csio, 996 /* retries */ 1, 997 /* cbfcnp */ chdone, 998 /* tag_action */ MSG_SIMPLE_Q_TAG, 999 /* tea */ softc->sc_picker, 1000 /* dst */ dst, 1001 /* invert */ (cp->cp_flags & CP_INVERT) ? 1002 TRUE : FALSE, 1003 /* sense_len */ SSD_FULL_SIZE, 1004 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 1005 1006 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1007 /*sense_flags*/ SF_RETRY_UA, 1008 softc->device_stats); 1009 1010 xpt_release_ccb(ccb); 1011 1012 return(error); 1013 } 1014 1015 /* 1016 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 1017 * to host native byte order in the volume serial number. The volume 1018 * label as returned by the changer is transferred to user mode as 1019 * nul-terminated string. Volume labels are truncated at the first 1020 * space, as suggested by SCSI-2. 1021 */ 1022 static void 1023 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 1024 { 1025 int i; 1026 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 1027 char c = voltag->vif[i]; 1028 if (c && c != ' ') 1029 uvoltag->cv_volid[i] = c; 1030 else 1031 break; 1032 } 1033 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 1034 } 1035 1036 /* 1037 * Copy an an element status descriptor to a user-mode 1038 * changer_element_status structure. 1039 */ 1040 1041 static void 1042 copy_element_status(struct ch_softc *softc, 1043 u_int16_t flags, 1044 struct read_element_status_descriptor *desc, 1045 struct changer_element_status *ces) 1046 { 1047 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1048 u_int16_t et; 1049 1050 ces->ces_int_addr = eaddr; 1051 /* set up logical address in element status */ 1052 for (et = CHET_MT; et <= CHET_DT; et++) { 1053 if ((softc->sc_firsts[et] <= eaddr) 1054 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1055 > eaddr)) { 1056 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1057 ces->ces_type = et; 1058 break; 1059 } 1060 } 1061 1062 ces->ces_flags = desc->flags1; 1063 1064 ces->ces_sensecode = desc->sense_code; 1065 ces->ces_sensequal = desc->sense_qual; 1066 1067 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1068 ces->ces_flags |= CES_INVERT; 1069 1070 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1071 1072 eaddr = scsi_2btoul(desc->ssea); 1073 1074 /* convert source address to logical format */ 1075 for (et = CHET_MT; et <= CHET_DT; et++) { 1076 if ((softc->sc_firsts[et] <= eaddr) 1077 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1078 > eaddr)) { 1079 ces->ces_source_addr = 1080 eaddr - softc->sc_firsts[et]; 1081 ces->ces_source_type = et; 1082 ces->ces_flags |= CES_SOURCE_VALID; 1083 break; 1084 } 1085 } 1086 1087 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1088 printf("ch: warning: could not map element source " 1089 "address %ud to a valid element type\n", 1090 eaddr); 1091 } 1092 1093 1094 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1095 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1096 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1097 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1098 1099 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1100 ces->ces_flags |= CES_SCSIID_VALID; 1101 ces->ces_scsi_id = desc->dt_scsi_addr; 1102 } 1103 1104 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1105 ces->ces_flags |= CES_LUN_VALID; 1106 ces->ces_scsi_lun = 1107 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1108 } 1109 } 1110 1111 static int 1112 chgetelemstatus(struct cam_periph *periph, 1113 struct changer_element_status_request *cesr) 1114 { 1115 struct read_element_status_header *st_hdr; 1116 struct read_element_status_page_header *pg_hdr; 1117 struct read_element_status_descriptor *desc; 1118 caddr_t data = NULL; 1119 size_t size, desclen; 1120 int avail, i, error = 0; 1121 struct changer_element_status *user_data = NULL; 1122 struct ch_softc *softc; 1123 union ccb *ccb; 1124 int chet = cesr->cesr_element_type; 1125 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1126 1127 softc = (struct ch_softc *)periph->softc; 1128 1129 /* perform argument checking */ 1130 1131 /* 1132 * Perform a range check on the cesr_element_{base,count} 1133 * request argument fields. 1134 */ 1135 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1136 || (cesr->cesr_element_base + cesr->cesr_element_count) 1137 > softc->sc_counts[chet]) 1138 return (EINVAL); 1139 1140 /* 1141 * Request one descriptor for the given element type. This 1142 * is used to determine the size of the descriptor so that 1143 * we can allocate enough storage for all of them. We assume 1144 * that the first one can fit into 1k. 1145 */ 1146 cam_periph_unlock(periph); 1147 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 1148 1149 cam_periph_lock(periph); 1150 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1151 1152 scsi_read_element_status(&ccb->csio, 1153 /* retries */ 1, 1154 /* cbfcnp */ chdone, 1155 /* tag_action */ MSG_SIMPLE_Q_TAG, 1156 /* voltag */ want_voltags, 1157 /* sea */ softc->sc_firsts[chet], 1158 /* count */ 1, 1159 /* data_ptr */ data, 1160 /* dxfer_len */ 1024, 1161 /* sense_len */ SSD_FULL_SIZE, 1162 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1163 1164 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1165 /*sense_flags*/ SF_RETRY_UA, 1166 softc->device_stats); 1167 1168 if (error) 1169 goto done; 1170 cam_periph_unlock(periph); 1171 1172 st_hdr = (struct read_element_status_header *)data; 1173 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1174 sizeof(struct read_element_status_header)); 1175 desclen = scsi_2btoul(pg_hdr->edl); 1176 1177 size = sizeof(struct read_element_status_header) + 1178 sizeof(struct read_element_status_page_header) + 1179 (desclen * cesr->cesr_element_count); 1180 1181 /* 1182 * Reallocate storage for descriptors and get them from the 1183 * device. 1184 */ 1185 free(data, M_DEVBUF); 1186 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 1187 1188 cam_periph_lock(periph); 1189 scsi_read_element_status(&ccb->csio, 1190 /* retries */ 1, 1191 /* cbfcnp */ chdone, 1192 /* tag_action */ MSG_SIMPLE_Q_TAG, 1193 /* voltag */ want_voltags, 1194 /* sea */ softc->sc_firsts[chet] 1195 + cesr->cesr_element_base, 1196 /* count */ cesr->cesr_element_count, 1197 /* data_ptr */ data, 1198 /* dxfer_len */ size, 1199 /* sense_len */ SSD_FULL_SIZE, 1200 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1201 1202 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1203 /*sense_flags*/ SF_RETRY_UA, 1204 softc->device_stats); 1205 1206 if (error) 1207 goto done; 1208 cam_periph_unlock(periph); 1209 1210 /* 1211 * Fill in the user status array. 1212 */ 1213 st_hdr = (struct read_element_status_header *)data; 1214 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1215 sizeof(struct read_element_status_header)); 1216 avail = scsi_2btoul(st_hdr->count); 1217 1218 if (avail != cesr->cesr_element_count) { 1219 xpt_print(periph->path, 1220 "warning, READ ELEMENT STATUS avail != count\n"); 1221 } 1222 1223 user_data = (struct changer_element_status *) 1224 malloc(avail * sizeof(struct changer_element_status), 1225 M_DEVBUF, M_WAITOK | M_ZERO); 1226 1227 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1228 sizeof(struct read_element_status_header) + 1229 sizeof(struct read_element_status_page_header)); 1230 /* 1231 * Set up the individual element status structures 1232 */ 1233 for (i = 0; i < avail; ++i) { 1234 struct changer_element_status *ces = &(user_data[i]); 1235 1236 copy_element_status(softc, pg_hdr->flags, desc, ces); 1237 1238 desc = (struct read_element_status_descriptor *) 1239 ((uintptr_t)desc + desclen); 1240 } 1241 1242 /* Copy element status structures out to userspace. */ 1243 error = copyout(user_data, 1244 cesr->cesr_element_status, 1245 avail * sizeof(struct changer_element_status)); 1246 cam_periph_lock(periph); 1247 1248 done: 1249 xpt_release_ccb(ccb); 1250 1251 if (data != NULL) 1252 free(data, M_DEVBUF); 1253 if (user_data != NULL) 1254 free(user_data, M_DEVBUF); 1255 1256 return (error); 1257 } 1258 1259 static int 1260 chielem(struct cam_periph *periph, 1261 unsigned int timeout) 1262 { 1263 union ccb *ccb; 1264 struct ch_softc *softc; 1265 int error; 1266 1267 if (!timeout) { 1268 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1269 } else { 1270 timeout *= 1000; 1271 } 1272 1273 error = 0; 1274 softc = (struct ch_softc *)periph->softc; 1275 1276 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1277 1278 scsi_initialize_element_status(&ccb->csio, 1279 /* retries */ 1, 1280 /* cbfcnp */ chdone, 1281 /* tag_action */ MSG_SIMPLE_Q_TAG, 1282 /* sense_len */ SSD_FULL_SIZE, 1283 /* timeout */ timeout); 1284 1285 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1286 /*sense_flags*/ SF_RETRY_UA, 1287 softc->device_stats); 1288 1289 xpt_release_ccb(ccb); 1290 1291 return(error); 1292 } 1293 1294 static int 1295 chsetvoltag(struct cam_periph *periph, 1296 struct changer_set_voltag_request *csvr) 1297 { 1298 union ccb *ccb; 1299 struct ch_softc *softc; 1300 u_int16_t ea; 1301 u_int8_t sac; 1302 struct scsi_send_volume_tag_parameters ssvtp; 1303 int error; 1304 int i; 1305 1306 error = 0; 1307 softc = (struct ch_softc *)periph->softc; 1308 1309 bzero(&ssvtp, sizeof(ssvtp)); 1310 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1311 ssvtp.vitf[i] = ' '; 1312 } 1313 1314 /* 1315 * Check arguments. 1316 */ 1317 if (csvr->csvr_type > CHET_DT) 1318 return EINVAL; 1319 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1320 return ENODEV; 1321 1322 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1323 1324 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1325 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1326 case CSVR_MODE_SET: 1327 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1328 break; 1329 case CSVR_MODE_REPLACE: 1330 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1331 break; 1332 case CSVR_MODE_CLEAR: 1333 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1334 break; 1335 default: 1336 error = EINVAL; 1337 goto out; 1338 } 1339 } else { 1340 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1341 case CSVR_MODE_SET: 1342 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1343 break; 1344 case CSVR_MODE_REPLACE: 1345 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1346 break; 1347 case CSVR_MODE_CLEAR: 1348 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1349 break; 1350 default: 1351 error = EINVAL; 1352 goto out; 1353 } 1354 } 1355 1356 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1357 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1358 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1359 1360 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1361 1362 scsi_send_volume_tag(&ccb->csio, 1363 /* retries */ 1, 1364 /* cbfcnp */ chdone, 1365 /* tag_action */ MSG_SIMPLE_Q_TAG, 1366 /* element_address */ ea, 1367 /* send_action_code */ sac, 1368 /* parameters */ &ssvtp, 1369 /* sense_len */ SSD_FULL_SIZE, 1370 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1371 1372 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1373 /*sense_flags*/ SF_RETRY_UA, 1374 softc->device_stats); 1375 1376 xpt_release_ccb(ccb); 1377 1378 out: 1379 return error; 1380 } 1381 1382 static int 1383 chgetparams(struct cam_periph *periph) 1384 { 1385 union ccb *ccb; 1386 struct ch_softc *softc; 1387 void *mode_buffer; 1388 int mode_buffer_len; 1389 struct page_element_address_assignment *ea; 1390 struct page_device_capabilities *cap; 1391 int error, from, dbd; 1392 u_int8_t *moves, *exchanges; 1393 1394 error = 0; 1395 1396 softc = (struct ch_softc *)periph->softc; 1397 1398 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1399 1400 /* 1401 * The scsi_mode_sense_data structure is just a convenience 1402 * structure that allows us to easily calculate the worst-case 1403 * storage size of the mode sense buffer. 1404 */ 1405 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1406 1407 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 1408 1409 if (mode_buffer == NULL) { 1410 printf("chgetparams: couldn't malloc mode sense data\n"); 1411 return(ENOSPC); 1412 } 1413 1414 bzero(mode_buffer, mode_buffer_len); 1415 1416 if (softc->quirks & CH_Q_NO_DBD) 1417 dbd = FALSE; 1418 else 1419 dbd = TRUE; 1420 1421 /* 1422 * Get the element address assignment page. 1423 */ 1424 scsi_mode_sense(&ccb->csio, 1425 /* retries */ 1, 1426 /* cbfcnp */ chdone, 1427 /* tag_action */ MSG_SIMPLE_Q_TAG, 1428 /* dbd */ dbd, 1429 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1430 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1431 /* param_buf */ (u_int8_t *)mode_buffer, 1432 /* param_len */ mode_buffer_len, 1433 /* sense_len */ SSD_FULL_SIZE, 1434 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1435 1436 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1437 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1438 softc->device_stats); 1439 1440 if (error) { 1441 if (dbd) { 1442 struct scsi_mode_sense_6 *sms; 1443 1444 sms = (struct scsi_mode_sense_6 *) 1445 ccb->csio.cdb_io.cdb_bytes; 1446 1447 sms->byte2 &= ~SMS_DBD; 1448 error = cam_periph_runccb(ccb, cherror, 1449 /*cam_flags*/ CAM_RETRY_SELTO, 1450 /*sense_flags*/ SF_RETRY_UA, 1451 softc->device_stats); 1452 } else { 1453 /* 1454 * Since we disabled sense printing above, print 1455 * out the sense here since we got an error. 1456 */ 1457 scsi_sense_print(&ccb->csio); 1458 } 1459 1460 if (error) { 1461 xpt_print(periph->path, 1462 "chgetparams: error getting element " 1463 "address page\n"); 1464 xpt_release_ccb(ccb); 1465 free(mode_buffer, M_SCSICH); 1466 return(error); 1467 } 1468 } 1469 1470 ea = (struct page_element_address_assignment *) 1471 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1472 1473 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1474 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1475 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1476 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1477 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1478 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1479 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1480 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1481 1482 bzero(mode_buffer, mode_buffer_len); 1483 1484 /* 1485 * Now get the device capabilities page. 1486 */ 1487 scsi_mode_sense(&ccb->csio, 1488 /* retries */ 1, 1489 /* cbfcnp */ chdone, 1490 /* tag_action */ MSG_SIMPLE_Q_TAG, 1491 /* dbd */ dbd, 1492 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1493 /* page */ CH_DEVICE_CAP_PAGE, 1494 /* param_buf */ (u_int8_t *)mode_buffer, 1495 /* param_len */ mode_buffer_len, 1496 /* sense_len */ SSD_FULL_SIZE, 1497 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1498 1499 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1500 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1501 softc->device_stats); 1502 1503 if (error) { 1504 if (dbd) { 1505 struct scsi_mode_sense_6 *sms; 1506 1507 sms = (struct scsi_mode_sense_6 *) 1508 ccb->csio.cdb_io.cdb_bytes; 1509 1510 sms->byte2 &= ~SMS_DBD; 1511 error = cam_periph_runccb(ccb, cherror, 1512 /*cam_flags*/ CAM_RETRY_SELTO, 1513 /*sense_flags*/ SF_RETRY_UA, 1514 softc->device_stats); 1515 } else { 1516 /* 1517 * Since we disabled sense printing above, print 1518 * out the sense here since we got an error. 1519 */ 1520 scsi_sense_print(&ccb->csio); 1521 } 1522 1523 if (error) { 1524 xpt_print(periph->path, 1525 "chgetparams: error getting device " 1526 "capabilities page\n"); 1527 xpt_release_ccb(ccb); 1528 free(mode_buffer, M_SCSICH); 1529 return(error); 1530 } 1531 } 1532 1533 xpt_release_ccb(ccb); 1534 1535 cap = (struct page_device_capabilities *) 1536 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1537 1538 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1539 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1540 moves = cap->move_from; 1541 exchanges = cap->exchange_with; 1542 for (from = CHET_MT; from <= CHET_MAX; ++from) { 1543 softc->sc_movemask[from] = moves[from]; 1544 softc->sc_exchangemask[from] = exchanges[from]; 1545 } 1546 1547 free(mode_buffer, M_SCSICH); 1548 1549 return(error); 1550 } 1551 1552 void 1553 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1554 void (*cbfcnp)(struct cam_periph *, union ccb *), 1555 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1556 u_int32_t dst, int invert, u_int8_t sense_len, 1557 u_int32_t timeout) 1558 { 1559 struct scsi_move_medium *scsi_cmd; 1560 1561 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1562 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1563 1564 scsi_cmd->opcode = MOVE_MEDIUM; 1565 1566 scsi_ulto2b(tea, scsi_cmd->tea); 1567 scsi_ulto2b(src, scsi_cmd->src); 1568 scsi_ulto2b(dst, scsi_cmd->dst); 1569 1570 if (invert) 1571 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1572 1573 cam_fill_csio(csio, 1574 retries, 1575 cbfcnp, 1576 /*flags*/ CAM_DIR_NONE, 1577 tag_action, 1578 /*data_ptr*/ NULL, 1579 /*dxfer_len*/ 0, 1580 sense_len, 1581 sizeof(*scsi_cmd), 1582 timeout); 1583 } 1584 1585 void 1586 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1587 void (*cbfcnp)(struct cam_periph *, union ccb *), 1588 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1589 u_int32_t dst1, u_int32_t dst2, int invert1, 1590 int invert2, u_int8_t sense_len, u_int32_t timeout) 1591 { 1592 struct scsi_exchange_medium *scsi_cmd; 1593 1594 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1595 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1596 1597 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1598 1599 scsi_ulto2b(tea, scsi_cmd->tea); 1600 scsi_ulto2b(src, scsi_cmd->src); 1601 scsi_ulto2b(dst1, scsi_cmd->fdst); 1602 scsi_ulto2b(dst2, scsi_cmd->sdst); 1603 1604 if (invert1) 1605 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1606 1607 if (invert2) 1608 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1609 1610 cam_fill_csio(csio, 1611 retries, 1612 cbfcnp, 1613 /*flags*/ CAM_DIR_NONE, 1614 tag_action, 1615 /*data_ptr*/ NULL, 1616 /*dxfer_len*/ 0, 1617 sense_len, 1618 sizeof(*scsi_cmd), 1619 timeout); 1620 } 1621 1622 void 1623 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1624 void (*cbfcnp)(struct cam_periph *, union ccb *), 1625 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1626 int invert, u_int8_t sense_len, u_int32_t timeout) 1627 { 1628 struct scsi_position_to_element *scsi_cmd; 1629 1630 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1631 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1632 1633 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1634 1635 scsi_ulto2b(tea, scsi_cmd->tea); 1636 scsi_ulto2b(dst, scsi_cmd->dst); 1637 1638 if (invert) 1639 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1640 1641 cam_fill_csio(csio, 1642 retries, 1643 cbfcnp, 1644 /*flags*/ CAM_DIR_NONE, 1645 tag_action, 1646 /*data_ptr*/ NULL, 1647 /*dxfer_len*/ 0, 1648 sense_len, 1649 sizeof(*scsi_cmd), 1650 timeout); 1651 } 1652 1653 void 1654 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1655 void (*cbfcnp)(struct cam_periph *, union ccb *), 1656 u_int8_t tag_action, int voltag, u_int32_t sea, 1657 u_int32_t count, u_int8_t *data_ptr, 1658 u_int32_t dxfer_len, u_int8_t sense_len, 1659 u_int32_t timeout) 1660 { 1661 struct scsi_read_element_status *scsi_cmd; 1662 1663 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1664 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1665 1666 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1667 1668 scsi_ulto2b(sea, scsi_cmd->sea); 1669 scsi_ulto2b(count, scsi_cmd->count); 1670 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1671 1672 if (voltag) 1673 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1674 1675 cam_fill_csio(csio, 1676 retries, 1677 cbfcnp, 1678 /*flags*/ CAM_DIR_IN, 1679 tag_action, 1680 data_ptr, 1681 dxfer_len, 1682 sense_len, 1683 sizeof(*scsi_cmd), 1684 timeout); 1685 } 1686 1687 void 1688 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1689 void (*cbfcnp)(struct cam_periph *, union ccb *), 1690 u_int8_t tag_action, u_int8_t sense_len, 1691 u_int32_t timeout) 1692 { 1693 struct scsi_initialize_element_status *scsi_cmd; 1694 1695 scsi_cmd = (struct scsi_initialize_element_status *) 1696 &csio->cdb_io.cdb_bytes; 1697 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1698 1699 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1700 1701 cam_fill_csio(csio, 1702 retries, 1703 cbfcnp, 1704 /*flags*/ CAM_DIR_NONE, 1705 tag_action, 1706 /* data_ptr */ NULL, 1707 /* dxfer_len */ 0, 1708 sense_len, 1709 sizeof(*scsi_cmd), 1710 timeout); 1711 } 1712 1713 void 1714 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1715 void (*cbfcnp)(struct cam_periph *, union ccb *), 1716 u_int8_t tag_action, 1717 u_int16_t element_address, 1718 u_int8_t send_action_code, 1719 struct scsi_send_volume_tag_parameters *parameters, 1720 u_int8_t sense_len, u_int32_t timeout) 1721 { 1722 struct scsi_send_volume_tag *scsi_cmd; 1723 1724 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1725 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1726 1727 scsi_cmd->opcode = SEND_VOLUME_TAG; 1728 scsi_ulto2b(element_address, scsi_cmd->ea); 1729 scsi_cmd->sac = send_action_code; 1730 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1731 1732 cam_fill_csio(csio, 1733 retries, 1734 cbfcnp, 1735 /*flags*/ CAM_DIR_OUT, 1736 tag_action, 1737 /* data_ptr */ (u_int8_t *) parameters, 1738 sizeof(*parameters), 1739 sense_len, 1740 sizeof(*scsi_cmd), 1741 timeout); 1742 } 1743