Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/cam/scsi/scsi_ch.c
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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: releng/8.3/sys/cam/scsi/scsi_ch.c 222923 2011-06-10 09:54:48Z mav $"); 72 73 #include <sys/param.h> 74 #include <sys/queue.h> 75 #include <sys/systm.h> 76 #include <sys/kernel.h> 77 #include <sys/types.h> 78 #include <sys/malloc.h> 79 #include <sys/fcntl.h> 80 #include <sys/conf.h> 81 #include <sys/chio.h> 82 #include <sys/errno.h> 83 #include <sys/devicestat.h> 84 85 #include <cam/cam.h> 86 #include <cam/cam_ccb.h> 87 #include <cam/cam_periph.h> 88 #include <cam/cam_xpt_periph.h> 89 #include <cam/cam_debug.h> 90 91 #include <cam/scsi/scsi_all.h> 92 #include <cam/scsi/scsi_message.h> 93 #include <cam/scsi/scsi_ch.h> 94 95 /* 96 * Timeout definitions for various changer related commands. They may 97 * be too short for some devices (especially the timeout for INITIALIZE 98 * ELEMENT STATUS). 99 */ 100 101 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 102 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 103 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 104 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 105 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 106 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 107 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 108 109 typedef enum { 110 CH_FLAG_INVALID = 0x001, 111 CH_FLAG_OPEN = 0x002 112 } ch_flags; 113 114 typedef enum { 115 CH_STATE_PROBE, 116 CH_STATE_NORMAL 117 } ch_state; 118 119 typedef enum { 120 CH_CCB_PROBE, 121 CH_CCB_WAITING 122 } ch_ccb_types; 123 124 typedef enum { 125 CH_Q_NONE = 0x00, 126 CH_Q_NO_DBD = 0x01 127 } ch_quirks; 128 129 #define ccb_state ppriv_field0 130 #define ccb_bp ppriv_ptr1 131 132 struct scsi_mode_sense_data { 133 struct scsi_mode_header_6 header; 134 struct scsi_mode_blk_desc blk_desc; 135 union { 136 struct page_element_address_assignment ea; 137 struct page_transport_geometry_parameters tg; 138 struct page_device_capabilities cap; 139 } pages; 140 }; 141 142 struct ch_softc { 143 ch_flags flags; 144 ch_state state; 145 ch_quirks quirks; 146 union ccb saved_ccb; 147 struct devstat *device_stats; 148 struct cdev *dev; 149 150 int sc_picker; /* current picker */ 151 152 /* 153 * The following information is obtained from the 154 * element address assignment page. 155 */ 156 int sc_firsts[CHET_MAX + 1]; /* firsts */ 157 int sc_counts[CHET_MAX + 1]; /* counts */ 158 159 /* 160 * The following mask defines the legal combinations 161 * of elements for the MOVE MEDIUM command. 162 */ 163 u_int8_t sc_movemask[CHET_MAX + 1]; 164 165 /* 166 * As above, but for EXCHANGE MEDIUM. 167 */ 168 u_int8_t sc_exchangemask[CHET_MAX + 1]; 169 170 /* 171 * Quirks; see below. XXX KDM not implemented yet 172 */ 173 int sc_settledelay; /* delay for settle */ 174 }; 175 176 static d_open_t chopen; 177 static d_close_t chclose; 178 static d_ioctl_t chioctl; 179 static periph_init_t chinit; 180 static periph_ctor_t chregister; 181 static periph_oninv_t choninvalidate; 182 static periph_dtor_t chcleanup; 183 static periph_start_t chstart; 184 static void chasync(void *callback_arg, u_int32_t code, 185 struct cam_path *path, void *arg); 186 static void chdone(struct cam_periph *periph, 187 union ccb *done_ccb); 188 static int cherror(union ccb *ccb, u_int32_t cam_flags, 189 u_int32_t sense_flags); 190 static int chmove(struct cam_periph *periph, 191 struct changer_move *cm); 192 static int chexchange(struct cam_periph *periph, 193 struct changer_exchange *ce); 194 static int chposition(struct cam_periph *periph, 195 struct changer_position *cp); 196 static int chgetelemstatus(struct cam_periph *periph, 197 struct changer_element_status_request *csr); 198 static int chsetvoltag(struct cam_periph *periph, 199 struct changer_set_voltag_request *csvr); 200 static int chielem(struct cam_periph *periph, 201 unsigned int timeout); 202 static int chgetparams(struct cam_periph *periph); 203 204 static struct periph_driver chdriver = 205 { 206 chinit, "ch", 207 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 208 }; 209 210 PERIPHDRIVER_DECLARE(ch, chdriver); 211 212 static struct cdevsw ch_cdevsw = { 213 .d_version = D_VERSION, 214 .d_flags = 0, 215 .d_open = chopen, 216 .d_close = chclose, 217 .d_ioctl = chioctl, 218 .d_name = "ch", 219 }; 220 221 MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers"); 222 223 static void 224 chinit(void) 225 { 226 cam_status status; 227 228 /* 229 * Install a global async callback. This callback will 230 * receive async callbacks like "new device found". 231 */ 232 status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL); 233 234 if (status != CAM_REQ_CMP) { 235 printf("ch: Failed to attach master async callback " 236 "due to status 0x%x!\n", status); 237 } 238 } 239 240 static void 241 choninvalidate(struct cam_periph *periph) 242 { 243 struct ch_softc *softc; 244 245 softc = (struct ch_softc *)periph->softc; 246 247 /* 248 * De-register any async callbacks. 249 */ 250 xpt_register_async(0, chasync, periph, periph->path); 251 252 softc->flags |= CH_FLAG_INVALID; 253 254 xpt_print(periph->path, "lost device\n"); 255 256 } 257 258 static void 259 chcleanup(struct cam_periph *periph) 260 { 261 struct ch_softc *softc; 262 263 softc = (struct ch_softc *)periph->softc; 264 265 xpt_print(periph->path, "removing device entry\n"); 266 devstat_remove_entry(softc->device_stats); 267 cam_periph_unlock(periph); 268 destroy_dev(softc->dev); 269 cam_periph_lock(periph); 270 free(softc, M_DEVBUF); 271 } 272 273 static void 274 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 275 { 276 struct cam_periph *periph; 277 278 periph = (struct cam_periph *)callback_arg; 279 280 switch(code) { 281 case AC_FOUND_DEVICE: 282 { 283 struct ccb_getdev *cgd; 284 cam_status status; 285 286 cgd = (struct ccb_getdev *)arg; 287 if (cgd == NULL) 288 break; 289 290 if (cgd->protocol != PROTO_SCSI) 291 break; 292 293 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 294 break; 295 296 /* 297 * Allocate a peripheral instance for 298 * this device and start the probe 299 * process. 300 */ 301 status = cam_periph_alloc(chregister, choninvalidate, 302 chcleanup, chstart, "ch", 303 CAM_PERIPH_BIO, cgd->ccb_h.path, 304 chasync, AC_FOUND_DEVICE, cgd); 305 306 if (status != CAM_REQ_CMP 307 && status != CAM_REQ_INPROG) 308 printf("chasync: Unable to probe new device " 309 "due to status 0x%x\n", status); 310 311 break; 312 313 } 314 default: 315 cam_periph_async(periph, code, path, arg); 316 break; 317 } 318 } 319 320 static cam_status 321 chregister(struct cam_periph *periph, void *arg) 322 { 323 struct ch_softc *softc; 324 struct ccb_getdev *cgd; 325 struct ccb_pathinq cpi; 326 327 cgd = (struct ccb_getdev *)arg; 328 if (periph == NULL) { 329 printf("chregister: periph was NULL!!\n"); 330 return(CAM_REQ_CMP_ERR); 331 } 332 333 if (cgd == NULL) { 334 printf("chregister: no getdev CCB, can't register device\n"); 335 return(CAM_REQ_CMP_ERR); 336 } 337 338 softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT); 339 340 if (softc == NULL) { 341 printf("chregister: Unable to probe new device. " 342 "Unable to allocate softc\n"); 343 return(CAM_REQ_CMP_ERR); 344 } 345 346 bzero(softc, sizeof(*softc)); 347 softc->state = CH_STATE_PROBE; 348 periph->softc = softc; 349 softc->quirks = CH_Q_NONE; 350 351 bzero(&cpi, sizeof(cpi)); 352 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 353 cpi.ccb_h.func_code = XPT_PATH_INQ; 354 xpt_action((union ccb *)&cpi); 355 356 /* 357 * Changers don't have a blocksize, and obviously don't support 358 * tagged queueing. 359 */ 360 cam_periph_unlock(periph); 361 softc->device_stats = devstat_new_entry("ch", 362 periph->unit_number, 0, 363 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 364 SID_TYPE(&cgd->inq_data) | 365 XPORT_DEVSTAT_TYPE(cpi.transport), 366 DEVSTAT_PRIORITY_OTHER); 367 368 /* Register the device */ 369 softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT, 370 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 371 periph->unit_number); 372 cam_periph_lock(periph); 373 softc->dev->si_drv1 = periph; 374 375 /* 376 * Add an async callback so that we get 377 * notified if this device goes away. 378 */ 379 xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path); 380 381 /* 382 * Lock this periph until we are setup. 383 * This first call can't block 384 */ 385 (void)cam_periph_hold(periph, PRIBIO); 386 xpt_schedule(periph, CAM_PRIORITY_DEV); 387 388 return(CAM_REQ_CMP); 389 } 390 391 static int 392 chopen(struct cdev *dev, int flags, int fmt, struct thread *td) 393 { 394 struct cam_periph *periph; 395 struct ch_softc *softc; 396 int error; 397 398 periph = (struct cam_periph *)dev->si_drv1; 399 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 400 return (ENXIO); 401 402 softc = (struct ch_softc *)periph->softc; 403 404 cam_periph_lock(periph); 405 406 if (softc->flags & CH_FLAG_INVALID) { 407 cam_periph_unlock(periph); 408 cam_periph_release(periph); 409 return(ENXIO); 410 } 411 412 if ((softc->flags & CH_FLAG_OPEN) == 0) 413 softc->flags |= CH_FLAG_OPEN; 414 else 415 cam_periph_release(periph); 416 417 if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) { 418 cam_periph_unlock(periph); 419 cam_periph_release(periph); 420 return (error); 421 } 422 423 /* 424 * Load information about this changer device into the softc. 425 */ 426 if ((error = chgetparams(periph)) != 0) { 427 softc->flags &= ~CH_FLAG_OPEN; 428 cam_periph_unlock(periph); 429 cam_periph_release(periph); 430 return(error); 431 } 432 433 cam_periph_unhold(periph); 434 cam_periph_unlock(periph); 435 436 return(error); 437 } 438 439 static int 440 chclose(struct cdev *dev, int flag, int fmt, struct thread *td) 441 { 442 struct cam_periph *periph; 443 struct ch_softc *softc; 444 int error; 445 446 error = 0; 447 448 periph = (struct cam_periph *)dev->si_drv1; 449 if (periph == NULL) 450 return(ENXIO); 451 452 softc = (struct ch_softc *)periph->softc; 453 454 cam_periph_lock(periph); 455 456 softc->flags &= ~CH_FLAG_OPEN; 457 458 cam_periph_unlock(periph); 459 cam_periph_release(periph); 460 461 return(0); 462 } 463 464 static void 465 chstart(struct cam_periph *periph, union ccb *start_ccb) 466 { 467 struct ch_softc *softc; 468 469 softc = (struct ch_softc *)periph->softc; 470 471 switch (softc->state) { 472 case CH_STATE_NORMAL: 473 { 474 if (periph->immediate_priority <= periph->pinfo.priority){ 475 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 476 477 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 478 periph_links.sle); 479 periph->immediate_priority = CAM_PRIORITY_NONE; 480 wakeup(&periph->ccb_list); 481 } 482 break; 483 } 484 case CH_STATE_PROBE: 485 { 486 int mode_buffer_len; 487 void *mode_buffer; 488 489 /* 490 * Include the block descriptor when calculating the mode 491 * buffer length, 492 */ 493 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 494 sizeof(struct scsi_mode_blk_desc) + 495 sizeof(struct page_element_address_assignment); 496 497 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 498 499 if (mode_buffer == NULL) { 500 printf("chstart: couldn't malloc mode sense data\n"); 501 break; 502 } 503 bzero(mode_buffer, mode_buffer_len); 504 505 /* 506 * Get the element address assignment page. 507 */ 508 scsi_mode_sense(&start_ccb->csio, 509 /* retries */ 1, 510 /* cbfcnp */ chdone, 511 /* tag_action */ MSG_SIMPLE_Q_TAG, 512 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 513 FALSE : TRUE, 514 /* page_code */ SMS_PAGE_CTRL_CURRENT, 515 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 516 /* param_buf */ (u_int8_t *)mode_buffer, 517 /* param_len */ mode_buffer_len, 518 /* sense_len */ SSD_FULL_SIZE, 519 /* timeout */ CH_TIMEOUT_MODE_SENSE); 520 521 start_ccb->ccb_h.ccb_bp = NULL; 522 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 523 xpt_action(start_ccb); 524 break; 525 } 526 } 527 } 528 529 static void 530 chdone(struct cam_periph *periph, union ccb *done_ccb) 531 { 532 struct ch_softc *softc; 533 struct ccb_scsiio *csio; 534 535 softc = (struct ch_softc *)periph->softc; 536 csio = &done_ccb->csio; 537 538 switch(done_ccb->ccb_h.ccb_state) { 539 case CH_CCB_PROBE: 540 { 541 struct scsi_mode_header_6 *mode_header; 542 struct page_element_address_assignment *ea; 543 char announce_buf[80]; 544 545 546 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 547 548 ea = (struct page_element_address_assignment *) 549 find_mode_page_6(mode_header); 550 551 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 552 553 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 554 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 555 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 556 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 557 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 558 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 559 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 560 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 561 softc->sc_picker = softc->sc_firsts[CHET_MT]; 562 563 #define PLURAL(c) (c) == 1 ? "" : "s" 564 snprintf(announce_buf, sizeof(announce_buf), 565 "%d slot%s, %d drive%s, " 566 "%d picker%s, %d portal%s", 567 softc->sc_counts[CHET_ST], 568 PLURAL(softc->sc_counts[CHET_ST]), 569 softc->sc_counts[CHET_DT], 570 PLURAL(softc->sc_counts[CHET_DT]), 571 softc->sc_counts[CHET_MT], 572 PLURAL(softc->sc_counts[CHET_MT]), 573 softc->sc_counts[CHET_IE], 574 PLURAL(softc->sc_counts[CHET_IE])); 575 #undef PLURAL 576 } else { 577 int error; 578 579 error = cherror(done_ccb, CAM_RETRY_SELTO, 580 SF_RETRY_UA | SF_NO_PRINT); 581 /* 582 * Retry any UNIT ATTENTION type errors. They 583 * are expected at boot. 584 */ 585 if (error == ERESTART) { 586 /* 587 * A retry was scheuled, so 588 * just return. 589 */ 590 return; 591 } else if (error != 0) { 592 int retry_scheduled; 593 struct scsi_mode_sense_6 *sms; 594 595 sms = (struct scsi_mode_sense_6 *) 596 done_ccb->csio.cdb_io.cdb_bytes; 597 598 /* 599 * Check to see if block descriptors were 600 * disabled. Some devices don't like that. 601 * We're taking advantage of the fact that 602 * the first few bytes of the 6 and 10 byte 603 * mode sense commands are the same. If 604 * block descriptors were disabled, enable 605 * them and re-send the command. 606 */ 607 if (sms->byte2 & SMS_DBD) { 608 sms->byte2 &= ~SMS_DBD; 609 xpt_action(done_ccb); 610 softc->quirks |= CH_Q_NO_DBD; 611 retry_scheduled = 1; 612 } else 613 retry_scheduled = 0; 614 615 /* Don't wedge this device's queue */ 616 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 617 cam_release_devq(done_ccb->ccb_h.path, 618 /*relsim_flags*/0, 619 /*reduction*/0, 620 /*timeout*/0, 621 /*getcount_only*/0); 622 623 if (retry_scheduled) 624 return; 625 626 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 627 == CAM_SCSI_STATUS_ERROR) 628 scsi_sense_print(&done_ccb->csio); 629 else { 630 xpt_print(periph->path, 631 "got CAM status %#x\n", 632 done_ccb->ccb_h.status); 633 } 634 xpt_print(periph->path, "fatal error, failed " 635 "to attach to device\n"); 636 637 cam_periph_invalidate(periph); 638 639 announce_buf[0] = '\0'; 640 } 641 } 642 if (announce_buf[0] != '\0') 643 xpt_announce_periph(periph, announce_buf); 644 softc->state = CH_STATE_NORMAL; 645 free(mode_header, M_SCSICH); 646 /* 647 * Since our peripheral may be invalidated by an error 648 * above or an external event, we must release our CCB 649 * before releasing the probe lock on the peripheral. 650 * The peripheral will only go away once the last lock 651 * is removed, and we need it around for the CCB release 652 * operation. 653 */ 654 xpt_release_ccb(done_ccb); 655 cam_periph_unhold(periph); 656 return; 657 } 658 case CH_CCB_WAITING: 659 { 660 /* Caller will release the CCB */ 661 wakeup(&done_ccb->ccb_h.cbfcnp); 662 return; 663 } 664 default: 665 break; 666 } 667 xpt_release_ccb(done_ccb); 668 } 669 670 static int 671 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 672 { 673 struct ch_softc *softc; 674 struct cam_periph *periph; 675 676 periph = xpt_path_periph(ccb->ccb_h.path); 677 softc = (struct ch_softc *)periph->softc; 678 679 return (cam_periph_error(ccb, cam_flags, sense_flags, 680 &softc->saved_ccb)); 681 } 682 683 static int 684 chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td) 685 { 686 struct cam_periph *periph; 687 struct ch_softc *softc; 688 int error; 689 690 periph = (struct cam_periph *)dev->si_drv1; 691 if (periph == NULL) 692 return(ENXIO); 693 694 cam_periph_lock(periph); 695 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 696 697 softc = (struct ch_softc *)periph->softc; 698 699 error = 0; 700 701 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 702 ("trying to do ioctl %#lx\n", cmd)); 703 704 /* 705 * If this command can change the device's state, we must 706 * have the device open for writing. 707 */ 708 switch (cmd) { 709 case CHIOGPICKER: 710 case CHIOGPARAMS: 711 case CHIOGSTATUS: 712 break; 713 714 default: 715 if ((flag & FWRITE) == 0) { 716 cam_periph_unlock(periph); 717 return (EBADF); 718 } 719 } 720 721 switch (cmd) { 722 case CHIOMOVE: 723 error = chmove(periph, (struct changer_move *)addr); 724 break; 725 726 case CHIOEXCHANGE: 727 error = chexchange(periph, (struct changer_exchange *)addr); 728 break; 729 730 case CHIOPOSITION: 731 error = chposition(periph, (struct changer_position *)addr); 732 break; 733 734 case CHIOGPICKER: 735 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 736 break; 737 738 case CHIOSPICKER: 739 { 740 int new_picker = *(int *)addr; 741 742 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) { 743 error = EINVAL; 744 break; 745 } 746 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 747 break; 748 } 749 case CHIOGPARAMS: 750 { 751 struct changer_params *cp = (struct changer_params *)addr; 752 753 cp->cp_npickers = softc->sc_counts[CHET_MT]; 754 cp->cp_nslots = softc->sc_counts[CHET_ST]; 755 cp->cp_nportals = softc->sc_counts[CHET_IE]; 756 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 757 break; 758 } 759 case CHIOIELEM: 760 error = chielem(periph, *(unsigned int *)addr); 761 break; 762 763 case CHIOGSTATUS: 764 { 765 error = chgetelemstatus(periph, 766 (struct changer_element_status_request *) addr); 767 break; 768 } 769 770 case CHIOSETVOLTAG: 771 { 772 error = chsetvoltag(periph, 773 (struct changer_set_voltag_request *) addr); 774 break; 775 } 776 777 /* Implement prevent/allow? */ 778 779 default: 780 error = cam_periph_ioctl(periph, cmd, addr, cherror); 781 break; 782 } 783 784 cam_periph_unlock(periph); 785 return (error); 786 } 787 788 static int 789 chmove(struct cam_periph *periph, struct changer_move *cm) 790 { 791 struct ch_softc *softc; 792 u_int16_t fromelem, toelem; 793 union ccb *ccb; 794 int error; 795 796 error = 0; 797 softc = (struct ch_softc *)periph->softc; 798 799 /* 800 * Check arguments. 801 */ 802 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 803 return (EINVAL); 804 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 805 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 806 return (ENODEV); 807 808 /* 809 * Check the request against the changer's capabilities. 810 */ 811 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 812 return (ENODEV); 813 814 /* 815 * Calculate the source and destination elements. 816 */ 817 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 818 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 819 820 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 821 822 scsi_move_medium(&ccb->csio, 823 /* retries */ 1, 824 /* cbfcnp */ chdone, 825 /* tag_action */ MSG_SIMPLE_Q_TAG, 826 /* tea */ softc->sc_picker, 827 /* src */ fromelem, 828 /* dst */ toelem, 829 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 830 /* sense_len */ SSD_FULL_SIZE, 831 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 832 833 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 834 /*sense_flags*/ SF_RETRY_UA, 835 softc->device_stats); 836 837 xpt_release_ccb(ccb); 838 839 return(error); 840 } 841 842 static int 843 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 844 { 845 struct ch_softc *softc; 846 u_int16_t src, dst1, dst2; 847 union ccb *ccb; 848 int error; 849 850 error = 0; 851 softc = (struct ch_softc *)periph->softc; 852 /* 853 * Check arguments. 854 */ 855 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 856 (ce->ce_sdsttype > CHET_DT)) 857 return (EINVAL); 858 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 859 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 860 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 861 return (ENODEV); 862 863 /* 864 * Check the request against the changer's capabilities. 865 */ 866 if (((softc->sc_exchangemask[ce->ce_srctype] & 867 (1 << ce->ce_fdsttype)) == 0) || 868 ((softc->sc_exchangemask[ce->ce_fdsttype] & 869 (1 << ce->ce_sdsttype)) == 0)) 870 return (ENODEV); 871 872 /* 873 * Calculate the source and destination elements. 874 */ 875 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 876 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 877 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 878 879 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 880 881 scsi_exchange_medium(&ccb->csio, 882 /* retries */ 1, 883 /* cbfcnp */ chdone, 884 /* tag_action */ MSG_SIMPLE_Q_TAG, 885 /* tea */ softc->sc_picker, 886 /* src */ src, 887 /* dst1 */ dst1, 888 /* dst2 */ dst2, 889 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 890 TRUE : FALSE, 891 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 892 TRUE : FALSE, 893 /* sense_len */ SSD_FULL_SIZE, 894 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 895 896 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 897 /*sense_flags*/ SF_RETRY_UA, 898 softc->device_stats); 899 900 xpt_release_ccb(ccb); 901 902 return(error); 903 } 904 905 static int 906 chposition(struct cam_periph *periph, struct changer_position *cp) 907 { 908 struct ch_softc *softc; 909 u_int16_t dst; 910 union ccb *ccb; 911 int error; 912 913 error = 0; 914 softc = (struct ch_softc *)periph->softc; 915 916 /* 917 * Check arguments. 918 */ 919 if (cp->cp_type > CHET_DT) 920 return (EINVAL); 921 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 922 return (ENODEV); 923 924 /* 925 * Calculate the destination element. 926 */ 927 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 928 929 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 930 931 scsi_position_to_element(&ccb->csio, 932 /* retries */ 1, 933 /* cbfcnp */ chdone, 934 /* tag_action */ MSG_SIMPLE_Q_TAG, 935 /* tea */ softc->sc_picker, 936 /* dst */ dst, 937 /* invert */ (cp->cp_flags & CP_INVERT) ? 938 TRUE : FALSE, 939 /* sense_len */ SSD_FULL_SIZE, 940 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 941 942 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 943 /*sense_flags*/ SF_RETRY_UA, 944 softc->device_stats); 945 946 xpt_release_ccb(ccb); 947 948 return(error); 949 } 950 951 /* 952 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 953 * to host native byte order in the volume serial number. The volume 954 * label as returned by the changer is transferred to user mode as 955 * nul-terminated string. Volume labels are truncated at the first 956 * space, as suggested by SCSI-2. 957 */ 958 static void 959 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 960 { 961 int i; 962 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 963 char c = voltag->vif[i]; 964 if (c && c != ' ') 965 uvoltag->cv_volid[i] = c; 966 else 967 break; 968 } 969 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 970 } 971 972 /* 973 * Copy an an element status descriptor to a user-mode 974 * changer_element_status structure. 975 */ 976 977 static void 978 copy_element_status(struct ch_softc *softc, 979 u_int16_t flags, 980 struct read_element_status_descriptor *desc, 981 struct changer_element_status *ces) 982 { 983 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 984 u_int16_t et; 985 986 ces->ces_int_addr = eaddr; 987 /* set up logical address in element status */ 988 for (et = CHET_MT; et <= CHET_DT; et++) { 989 if ((softc->sc_firsts[et] <= eaddr) 990 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 991 > eaddr)) { 992 ces->ces_addr = eaddr - softc->sc_firsts[et]; 993 ces->ces_type = et; 994 break; 995 } 996 } 997 998 ces->ces_flags = desc->flags1; 999 1000 ces->ces_sensecode = desc->sense_code; 1001 ces->ces_sensequal = desc->sense_qual; 1002 1003 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1004 ces->ces_flags |= CES_INVERT; 1005 1006 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1007 1008 eaddr = scsi_2btoul(desc->ssea); 1009 1010 /* convert source address to logical format */ 1011 for (et = CHET_MT; et <= CHET_DT; et++) { 1012 if ((softc->sc_firsts[et] <= eaddr) 1013 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1014 > eaddr)) { 1015 ces->ces_source_addr = 1016 eaddr - softc->sc_firsts[et]; 1017 ces->ces_source_type = et; 1018 ces->ces_flags |= CES_SOURCE_VALID; 1019 break; 1020 } 1021 } 1022 1023 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1024 printf("ch: warning: could not map element source " 1025 "address %ud to a valid element type\n", 1026 eaddr); 1027 } 1028 1029 1030 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1031 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1032 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1033 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1034 1035 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1036 ces->ces_flags |= CES_SCSIID_VALID; 1037 ces->ces_scsi_id = desc->dt_scsi_addr; 1038 } 1039 1040 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1041 ces->ces_flags |= CES_LUN_VALID; 1042 ces->ces_scsi_lun = 1043 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1044 } 1045 } 1046 1047 static int 1048 chgetelemstatus(struct cam_periph *periph, 1049 struct changer_element_status_request *cesr) 1050 { 1051 struct read_element_status_header *st_hdr; 1052 struct read_element_status_page_header *pg_hdr; 1053 struct read_element_status_descriptor *desc; 1054 caddr_t data = NULL; 1055 size_t size, desclen; 1056 int avail, i, error = 0; 1057 struct changer_element_status *user_data = NULL; 1058 struct ch_softc *softc; 1059 union ccb *ccb; 1060 int chet = cesr->cesr_element_type; 1061 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1062 1063 softc = (struct ch_softc *)periph->softc; 1064 1065 /* perform argument checking */ 1066 1067 /* 1068 * Perform a range check on the cesr_element_{base,count} 1069 * request argument fields. 1070 */ 1071 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1072 || (cesr->cesr_element_base + cesr->cesr_element_count) 1073 > softc->sc_counts[chet]) 1074 return (EINVAL); 1075 1076 /* 1077 * Request one descriptor for the given element type. This 1078 * is used to determine the size of the descriptor so that 1079 * we can allocate enough storage for all of them. We assume 1080 * that the first one can fit into 1k. 1081 */ 1082 cam_periph_unlock(periph); 1083 data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK); 1084 1085 cam_periph_lock(periph); 1086 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1087 1088 scsi_read_element_status(&ccb->csio, 1089 /* retries */ 1, 1090 /* cbfcnp */ chdone, 1091 /* tag_action */ MSG_SIMPLE_Q_TAG, 1092 /* voltag */ want_voltags, 1093 /* sea */ softc->sc_firsts[chet], 1094 /* count */ 1, 1095 /* data_ptr */ data, 1096 /* dxfer_len */ 1024, 1097 /* sense_len */ SSD_FULL_SIZE, 1098 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1099 1100 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1101 /*sense_flags*/ SF_RETRY_UA, 1102 softc->device_stats); 1103 1104 if (error) 1105 goto done; 1106 cam_periph_unlock(periph); 1107 1108 st_hdr = (struct read_element_status_header *)data; 1109 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1110 sizeof(struct read_element_status_header)); 1111 desclen = scsi_2btoul(pg_hdr->edl); 1112 1113 size = sizeof(struct read_element_status_header) + 1114 sizeof(struct read_element_status_page_header) + 1115 (desclen * cesr->cesr_element_count); 1116 1117 /* 1118 * Reallocate storage for descriptors and get them from the 1119 * device. 1120 */ 1121 free(data, M_DEVBUF); 1122 data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK); 1123 1124 cam_periph_lock(periph); 1125 scsi_read_element_status(&ccb->csio, 1126 /* retries */ 1, 1127 /* cbfcnp */ chdone, 1128 /* tag_action */ MSG_SIMPLE_Q_TAG, 1129 /* voltag */ want_voltags, 1130 /* sea */ softc->sc_firsts[chet] 1131 + cesr->cesr_element_base, 1132 /* count */ cesr->cesr_element_count, 1133 /* data_ptr */ data, 1134 /* dxfer_len */ size, 1135 /* sense_len */ SSD_FULL_SIZE, 1136 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1137 1138 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1139 /*sense_flags*/ SF_RETRY_UA, 1140 softc->device_stats); 1141 1142 if (error) 1143 goto done; 1144 cam_periph_unlock(periph); 1145 1146 /* 1147 * Fill in the user status array. 1148 */ 1149 st_hdr = (struct read_element_status_header *)data; 1150 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1151 sizeof(struct read_element_status_header)); 1152 avail = scsi_2btoul(st_hdr->count); 1153 1154 if (avail != cesr->cesr_element_count) { 1155 xpt_print(periph->path, 1156 "warning, READ ELEMENT STATUS avail != count\n"); 1157 } 1158 1159 user_data = (struct changer_element_status *) 1160 malloc(avail * sizeof(struct changer_element_status), 1161 M_DEVBUF, M_WAITOK | M_ZERO); 1162 1163 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1164 sizeof(struct read_element_status_header) + 1165 sizeof(struct read_element_status_page_header)); 1166 /* 1167 * Set up the individual element status structures 1168 */ 1169 for (i = 0; i < avail; ++i) { 1170 struct changer_element_status *ces = &(user_data[i]); 1171 1172 copy_element_status(softc, pg_hdr->flags, desc, ces); 1173 1174 desc = (struct read_element_status_descriptor *) 1175 ((uintptr_t)desc + desclen); 1176 } 1177 1178 /* Copy element status structures out to userspace. */ 1179 error = copyout(user_data, 1180 cesr->cesr_element_status, 1181 avail * sizeof(struct changer_element_status)); 1182 cam_periph_lock(periph); 1183 1184 done: 1185 xpt_release_ccb(ccb); 1186 1187 if (data != NULL) 1188 free(data, M_DEVBUF); 1189 if (user_data != NULL) 1190 free(user_data, M_DEVBUF); 1191 1192 return (error); 1193 } 1194 1195 static int 1196 chielem(struct cam_periph *periph, 1197 unsigned int timeout) 1198 { 1199 union ccb *ccb; 1200 struct ch_softc *softc; 1201 int error; 1202 1203 if (!timeout) { 1204 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1205 } else { 1206 timeout *= 1000; 1207 } 1208 1209 error = 0; 1210 softc = (struct ch_softc *)periph->softc; 1211 1212 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1213 1214 scsi_initialize_element_status(&ccb->csio, 1215 /* retries */ 1, 1216 /* cbfcnp */ chdone, 1217 /* tag_action */ MSG_SIMPLE_Q_TAG, 1218 /* sense_len */ SSD_FULL_SIZE, 1219 /* timeout */ timeout); 1220 1221 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1222 /*sense_flags*/ SF_RETRY_UA, 1223 softc->device_stats); 1224 1225 xpt_release_ccb(ccb); 1226 1227 return(error); 1228 } 1229 1230 static int 1231 chsetvoltag(struct cam_periph *periph, 1232 struct changer_set_voltag_request *csvr) 1233 { 1234 union ccb *ccb; 1235 struct ch_softc *softc; 1236 u_int16_t ea; 1237 u_int8_t sac; 1238 struct scsi_send_volume_tag_parameters ssvtp; 1239 int error; 1240 int i; 1241 1242 error = 0; 1243 softc = (struct ch_softc *)periph->softc; 1244 1245 bzero(&ssvtp, sizeof(ssvtp)); 1246 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1247 ssvtp.vitf[i] = ' '; 1248 } 1249 1250 /* 1251 * Check arguments. 1252 */ 1253 if (csvr->csvr_type > CHET_DT) 1254 return EINVAL; 1255 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1256 return ENODEV; 1257 1258 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1259 1260 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1261 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1262 case CSVR_MODE_SET: 1263 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1264 break; 1265 case CSVR_MODE_REPLACE: 1266 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1267 break; 1268 case CSVR_MODE_CLEAR: 1269 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1270 break; 1271 default: 1272 error = EINVAL; 1273 goto out; 1274 } 1275 } else { 1276 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1277 case CSVR_MODE_SET: 1278 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1279 break; 1280 case CSVR_MODE_REPLACE: 1281 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1282 break; 1283 case CSVR_MODE_CLEAR: 1284 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1285 break; 1286 default: 1287 error = EINVAL; 1288 goto out; 1289 } 1290 } 1291 1292 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1293 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1294 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1295 1296 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1297 1298 scsi_send_volume_tag(&ccb->csio, 1299 /* retries */ 1, 1300 /* cbfcnp */ chdone, 1301 /* tag_action */ MSG_SIMPLE_Q_TAG, 1302 /* element_address */ ea, 1303 /* send_action_code */ sac, 1304 /* parameters */ &ssvtp, 1305 /* sense_len */ SSD_FULL_SIZE, 1306 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1307 1308 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1309 /*sense_flags*/ SF_RETRY_UA, 1310 softc->device_stats); 1311 1312 xpt_release_ccb(ccb); 1313 1314 out: 1315 return error; 1316 } 1317 1318 static int 1319 chgetparams(struct cam_periph *periph) 1320 { 1321 union ccb *ccb; 1322 struct ch_softc *softc; 1323 void *mode_buffer; 1324 int mode_buffer_len; 1325 struct page_element_address_assignment *ea; 1326 struct page_device_capabilities *cap; 1327 int error, from, dbd; 1328 u_int8_t *moves, *exchanges; 1329 1330 error = 0; 1331 1332 softc = (struct ch_softc *)periph->softc; 1333 1334 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 1335 1336 /* 1337 * The scsi_mode_sense_data structure is just a convenience 1338 * structure that allows us to easily calculate the worst-case 1339 * storage size of the mode sense buffer. 1340 */ 1341 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1342 1343 mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT); 1344 1345 if (mode_buffer == NULL) { 1346 printf("chgetparams: couldn't malloc mode sense data\n"); 1347 return(ENOSPC); 1348 } 1349 1350 bzero(mode_buffer, mode_buffer_len); 1351 1352 if (softc->quirks & CH_Q_NO_DBD) 1353 dbd = FALSE; 1354 else 1355 dbd = TRUE; 1356 1357 /* 1358 * Get the element address assignment page. 1359 */ 1360 scsi_mode_sense(&ccb->csio, 1361 /* retries */ 1, 1362 /* cbfcnp */ chdone, 1363 /* tag_action */ MSG_SIMPLE_Q_TAG, 1364 /* dbd */ dbd, 1365 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1366 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1367 /* param_buf */ (u_int8_t *)mode_buffer, 1368 /* param_len */ mode_buffer_len, 1369 /* sense_len */ SSD_FULL_SIZE, 1370 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1371 1372 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1373 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1374 softc->device_stats); 1375 1376 if (error) { 1377 if (dbd) { 1378 struct scsi_mode_sense_6 *sms; 1379 1380 sms = (struct scsi_mode_sense_6 *) 1381 ccb->csio.cdb_io.cdb_bytes; 1382 1383 sms->byte2 &= ~SMS_DBD; 1384 error = cam_periph_runccb(ccb, cherror, 1385 /*cam_flags*/ CAM_RETRY_SELTO, 1386 /*sense_flags*/ SF_RETRY_UA, 1387 softc->device_stats); 1388 } else { 1389 /* 1390 * Since we disabled sense printing above, print 1391 * out the sense here since we got an error. 1392 */ 1393 scsi_sense_print(&ccb->csio); 1394 } 1395 1396 if (error) { 1397 xpt_print(periph->path, 1398 "chgetparams: error getting element " 1399 "address page\n"); 1400 xpt_release_ccb(ccb); 1401 free(mode_buffer, M_SCSICH); 1402 return(error); 1403 } 1404 } 1405 1406 ea = (struct page_element_address_assignment *) 1407 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1408 1409 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1410 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1411 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1412 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1413 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1414 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1415 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1416 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1417 1418 bzero(mode_buffer, mode_buffer_len); 1419 1420 /* 1421 * Now get the device capabilities page. 1422 */ 1423 scsi_mode_sense(&ccb->csio, 1424 /* retries */ 1, 1425 /* cbfcnp */ chdone, 1426 /* tag_action */ MSG_SIMPLE_Q_TAG, 1427 /* dbd */ dbd, 1428 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1429 /* page */ CH_DEVICE_CAP_PAGE, 1430 /* param_buf */ (u_int8_t *)mode_buffer, 1431 /* param_len */ mode_buffer_len, 1432 /* sense_len */ SSD_FULL_SIZE, 1433 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1434 1435 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1436 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1437 softc->device_stats); 1438 1439 if (error) { 1440 if (dbd) { 1441 struct scsi_mode_sense_6 *sms; 1442 1443 sms = (struct scsi_mode_sense_6 *) 1444 ccb->csio.cdb_io.cdb_bytes; 1445 1446 sms->byte2 &= ~SMS_DBD; 1447 error = cam_periph_runccb(ccb, cherror, 1448 /*cam_flags*/ CAM_RETRY_SELTO, 1449 /*sense_flags*/ SF_RETRY_UA, 1450 softc->device_stats); 1451 } else { 1452 /* 1453 * Since we disabled sense printing above, print 1454 * out the sense here since we got an error. 1455 */ 1456 scsi_sense_print(&ccb->csio); 1457 } 1458 1459 if (error) { 1460 xpt_print(periph->path, 1461 "chgetparams: error getting device " 1462 "capabilities page\n"); 1463 xpt_release_ccb(ccb); 1464 free(mode_buffer, M_SCSICH); 1465 return(error); 1466 } 1467 } 1468 1469 xpt_release_ccb(ccb); 1470 1471 cap = (struct page_device_capabilities *) 1472 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1473 1474 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1475 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1476 moves = cap->move_from; 1477 exchanges = cap->exchange_with; 1478 for (from = CHET_MT; from <= CHET_MAX; ++from) { 1479 softc->sc_movemask[from] = moves[from]; 1480 softc->sc_exchangemask[from] = exchanges[from]; 1481 } 1482 1483 free(mode_buffer, M_SCSICH); 1484 1485 return(error); 1486 } 1487 1488 void 1489 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1490 void (*cbfcnp)(struct cam_periph *, union ccb *), 1491 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1492 u_int32_t dst, int invert, u_int8_t sense_len, 1493 u_int32_t timeout) 1494 { 1495 struct scsi_move_medium *scsi_cmd; 1496 1497 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1498 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1499 1500 scsi_cmd->opcode = MOVE_MEDIUM; 1501 1502 scsi_ulto2b(tea, scsi_cmd->tea); 1503 scsi_ulto2b(src, scsi_cmd->src); 1504 scsi_ulto2b(dst, scsi_cmd->dst); 1505 1506 if (invert) 1507 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1508 1509 cam_fill_csio(csio, 1510 retries, 1511 cbfcnp, 1512 /*flags*/ CAM_DIR_NONE, 1513 tag_action, 1514 /*data_ptr*/ NULL, 1515 /*dxfer_len*/ 0, 1516 sense_len, 1517 sizeof(*scsi_cmd), 1518 timeout); 1519 } 1520 1521 void 1522 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1523 void (*cbfcnp)(struct cam_periph *, union ccb *), 1524 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1525 u_int32_t dst1, u_int32_t dst2, int invert1, 1526 int invert2, u_int8_t sense_len, u_int32_t timeout) 1527 { 1528 struct scsi_exchange_medium *scsi_cmd; 1529 1530 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1531 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1532 1533 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1534 1535 scsi_ulto2b(tea, scsi_cmd->tea); 1536 scsi_ulto2b(src, scsi_cmd->src); 1537 scsi_ulto2b(dst1, scsi_cmd->fdst); 1538 scsi_ulto2b(dst2, scsi_cmd->sdst); 1539 1540 if (invert1) 1541 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1542 1543 if (invert2) 1544 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1545 1546 cam_fill_csio(csio, 1547 retries, 1548 cbfcnp, 1549 /*flags*/ CAM_DIR_NONE, 1550 tag_action, 1551 /*data_ptr*/ NULL, 1552 /*dxfer_len*/ 0, 1553 sense_len, 1554 sizeof(*scsi_cmd), 1555 timeout); 1556 } 1557 1558 void 1559 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1560 void (*cbfcnp)(struct cam_periph *, union ccb *), 1561 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1562 int invert, u_int8_t sense_len, u_int32_t timeout) 1563 { 1564 struct scsi_position_to_element *scsi_cmd; 1565 1566 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1567 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1568 1569 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1570 1571 scsi_ulto2b(tea, scsi_cmd->tea); 1572 scsi_ulto2b(dst, scsi_cmd->dst); 1573 1574 if (invert) 1575 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1576 1577 cam_fill_csio(csio, 1578 retries, 1579 cbfcnp, 1580 /*flags*/ CAM_DIR_NONE, 1581 tag_action, 1582 /*data_ptr*/ NULL, 1583 /*dxfer_len*/ 0, 1584 sense_len, 1585 sizeof(*scsi_cmd), 1586 timeout); 1587 } 1588 1589 void 1590 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1591 void (*cbfcnp)(struct cam_periph *, union ccb *), 1592 u_int8_t tag_action, int voltag, u_int32_t sea, 1593 u_int32_t count, u_int8_t *data_ptr, 1594 u_int32_t dxfer_len, u_int8_t sense_len, 1595 u_int32_t timeout) 1596 { 1597 struct scsi_read_element_status *scsi_cmd; 1598 1599 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1600 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1601 1602 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1603 1604 scsi_ulto2b(sea, scsi_cmd->sea); 1605 scsi_ulto2b(count, scsi_cmd->count); 1606 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1607 1608 if (voltag) 1609 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1610 1611 cam_fill_csio(csio, 1612 retries, 1613 cbfcnp, 1614 /*flags*/ CAM_DIR_IN, 1615 tag_action, 1616 data_ptr, 1617 dxfer_len, 1618 sense_len, 1619 sizeof(*scsi_cmd), 1620 timeout); 1621 } 1622 1623 void 1624 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1625 void (*cbfcnp)(struct cam_periph *, union ccb *), 1626 u_int8_t tag_action, u_int8_t sense_len, 1627 u_int32_t timeout) 1628 { 1629 struct scsi_initialize_element_status *scsi_cmd; 1630 1631 scsi_cmd = (struct scsi_initialize_element_status *) 1632 &csio->cdb_io.cdb_bytes; 1633 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1634 1635 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1636 1637 cam_fill_csio(csio, 1638 retries, 1639 cbfcnp, 1640 /*flags*/ CAM_DIR_NONE, 1641 tag_action, 1642 /* data_ptr */ NULL, 1643 /* dxfer_len */ 0, 1644 sense_len, 1645 sizeof(*scsi_cmd), 1646 timeout); 1647 } 1648 1649 void 1650 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1651 void (*cbfcnp)(struct cam_periph *, union ccb *), 1652 u_int8_t tag_action, 1653 u_int16_t element_address, 1654 u_int8_t send_action_code, 1655 struct scsi_send_volume_tag_parameters *parameters, 1656 u_int8_t sense_len, u_int32_t timeout) 1657 { 1658 struct scsi_send_volume_tag *scsi_cmd; 1659 1660 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1661 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1662 1663 scsi_cmd->opcode = SEND_VOLUME_TAG; 1664 scsi_ulto2b(element_address, scsi_cmd->ea); 1665 scsi_cmd->sac = send_action_code; 1666 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1667 1668 cam_fill_csio(csio, 1669 retries, 1670 cbfcnp, 1671 /*flags*/ CAM_DIR_OUT, 1672 tag_action, 1673 /* data_ptr */ (u_int8_t *) parameters, 1674 sizeof(*parameters), 1675 sense_len, 1676 sizeof(*scsi_cmd), 1677 timeout); 1678 }
Cache object: bbb63fe7e57a786182e91ec01a90d55f
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