1 /* 2 * Copyright (c) 1997 Justin T. Gibbs. 3 * Copyright (c) 1997, 1998, 1999 Kenneth D. Merry. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer, 11 * without modification, immediately at the beginning of the file. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/cam/scsi/scsi_ch.c,v 1.20.2.2 2000/10/31 08:09:49 dwmalone Exp $ 28 * $DragonFly: src/sys/bus/cam/scsi/scsi_ch.c,v 1.22 2007/11/18 17:53:01 pavalos Exp $ 29 */ 30 /* 31 * Derived from the NetBSD SCSI changer driver. 32 * 33 * $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $ 34 * 35 */ 36 /* 37 * Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com> 38 * All rights reserved. 39 * 40 * Partially based on an autochanger driver written by Stefan Grefen 41 * and on an autochanger driver written by the Systems Programming Group 42 * at the University of Utah Computer Science Department. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgements: 54 * This product includes software developed by Jason R. Thorpe 55 * for And Communications, http://www.and.com/ 56 * 4. The name of the author may not be used to endorse or promote products 57 * derived from this software without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 60 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 61 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 62 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 63 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 64 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 65 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 66 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 67 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 */ 71 72 #include <sys/param.h> 73 #include <sys/queue.h> 74 #include <sys/systm.h> 75 #include <sys/kernel.h> 76 #include <sys/types.h> 77 #include <sys/malloc.h> 78 #include <sys/fcntl.h> 79 #include <sys/conf.h> 80 #include <sys/buf.h> 81 #include <sys/chio.h> 82 #include <sys/errno.h> 83 #include <sys/devicestat.h> 84 #include <sys/thread2.h> 85 86 #include "../cam.h" 87 #include "../cam_ccb.h" 88 #include "../cam_extend.h" 89 #include "../cam_periph.h" 90 #include "../cam_xpt_periph.h" 91 #include "../cam_queue.h" 92 #include "../cam_debug.h" 93 94 #include "scsi_all.h" 95 #include "scsi_message.h" 96 #include "scsi_ch.h" 97 98 /* 99 * Timeout definitions for various changer related commands. They may 100 * be too short for some devices (especially the timeout for INITIALIZE 101 * ELEMENT STATUS). 102 */ 103 104 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 105 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 106 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 107 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 108 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 109 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 110 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 111 112 typedef enum { 113 CH_FLAG_INVALID = 0x001, 114 CH_FLAG_OPEN = 0x002 115 } ch_flags; 116 117 typedef enum { 118 CH_STATE_PROBE, 119 CH_STATE_NORMAL 120 } ch_state; 121 122 typedef enum { 123 CH_CCB_PROBE, 124 CH_CCB_WAITING 125 } ch_ccb_types; 126 127 typedef enum { 128 CH_Q_NONE = 0x00, 129 CH_Q_NO_DBD = 0x01 130 } ch_quirks; 131 132 #define ccb_state ppriv_field0 133 #define ccb_bio ppriv_ptr1 134 135 struct scsi_mode_sense_data { 136 struct scsi_mode_header_6 header; 137 struct scsi_mode_blk_desc blk_desc; 138 union { 139 struct page_element_address_assignment ea; 140 struct page_transport_geometry_parameters tg; 141 struct page_device_capabilities cap; 142 } pages; 143 }; 144 145 struct ch_softc { 146 ch_flags flags; 147 ch_state state; 148 ch_quirks quirks; 149 union ccb saved_ccb; 150 struct devstat device_stats; 151 152 int sc_picker; /* current picker */ 153 154 /* 155 * The following information is obtained from the 156 * element address assignment page. 157 */ 158 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 159 int sc_counts[4]; /* counts, indexed by CHET_* */ 160 161 /* 162 * The following mask defines the legal combinations 163 * of elements for the MOVE MEDIUM command. 164 */ 165 u_int8_t sc_movemask[4]; 166 167 /* 168 * As above, but for EXCHANGE MEDIUM. 169 */ 170 u_int8_t sc_exchangemask[4]; 171 172 /* 173 * Quirks; see below. XXX KDM not implemented yet 174 */ 175 int sc_settledelay; /* delay for settle */ 176 }; 177 178 #define CHUNIT(x) (minor((x))) 179 #define CH_CDEV_MAJOR 17 180 181 static d_open_t chopen; 182 static d_close_t chclose; 183 static d_ioctl_t chioctl; 184 static periph_init_t chinit; 185 static periph_ctor_t chregister; 186 static periph_oninv_t choninvalidate; 187 static periph_dtor_t chcleanup; 188 static periph_start_t chstart; 189 static void chasync(void *callback_arg, u_int32_t code, 190 struct cam_path *path, void *arg); 191 static void chdone(struct cam_periph *periph, 192 union ccb *done_ccb); 193 static int cherror(union ccb *ccb, u_int32_t cam_flags, 194 u_int32_t sense_flags); 195 static int chmove(struct cam_periph *periph, 196 struct changer_move *cm); 197 static int chexchange(struct cam_periph *periph, 198 struct changer_exchange *ce); 199 static int chposition(struct cam_periph *periph, 200 struct changer_position *cp); 201 static int chgetelemstatus(struct cam_periph *periph, 202 struct changer_element_status_request *csr); 203 static int chsetvoltag(struct cam_periph *periph, 204 struct changer_set_voltag_request *csvr); 205 static int chielem(struct cam_periph *periph, 206 unsigned int timeout); 207 static int chgetparams(struct cam_periph *periph); 208 209 static struct periph_driver chdriver = 210 { 211 chinit, "ch", 212 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 213 }; 214 215 PERIPHDRIVER_DECLARE(ch, chdriver); 216 217 static struct dev_ops ch_ops = { 218 { "ch", CH_CDEV_MAJOR, 0 }, 219 .d_open = chopen, 220 .d_close = chclose, 221 .d_ioctl = chioctl 222 }; 223 224 static struct extend_array *chperiphs; 225 226 void 227 chinit(void) 228 { 229 cam_status status; 230 struct cam_path *path; 231 232 /* 233 * Create our extend array for storing the devices we attach to. 234 */ 235 chperiphs = cam_extend_new(); 236 if (chperiphs == NULL) { 237 kprintf("ch: Failed to alloc extend array!\n"); 238 return; 239 } 240 241 /* 242 * Install a global async callback. This callback will 243 * receive async callbacks like "new device found". 244 */ 245 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 246 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 247 248 if (status == CAM_REQ_CMP) { 249 struct ccb_setasync csa; 250 251 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 252 csa.ccb_h.func_code = XPT_SASYNC_CB; 253 csa.event_enable = AC_FOUND_DEVICE; 254 csa.callback = chasync; 255 csa.callback_arg = NULL; 256 xpt_action((union ccb *)&csa); 257 status = csa.ccb_h.status; 258 xpt_free_path(path); 259 } 260 261 if (status != CAM_REQ_CMP) { 262 kprintf("ch: Failed to attach master async callback " 263 "due to status 0x%x!\n", status); 264 } 265 } 266 267 static void 268 choninvalidate(struct cam_periph *periph) 269 { 270 struct ch_softc *softc; 271 struct ccb_setasync csa; 272 273 softc = (struct ch_softc *)periph->softc; 274 275 /* 276 * De-register any async callbacks. 277 */ 278 xpt_setup_ccb(&csa.ccb_h, periph->path, 279 /* priority */ 5); 280 csa.ccb_h.func_code = XPT_SASYNC_CB; 281 csa.event_enable = 0; 282 csa.callback = chasync; 283 csa.callback_arg = periph; 284 xpt_action((union ccb *)&csa); 285 286 softc->flags |= CH_FLAG_INVALID; 287 288 xpt_print_path(periph->path); 289 kprintf("lost device\n"); 290 291 } 292 293 static void 294 chcleanup(struct cam_periph *periph) 295 { 296 struct ch_softc *softc; 297 298 softc = (struct ch_softc *)periph->softc; 299 300 devstat_remove_entry(&softc->device_stats); 301 cam_extend_release(chperiphs, periph->unit_number); 302 xpt_print_path(periph->path); 303 kprintf("removing device entry\n"); 304 dev_ops_remove(&ch_ops, -1, periph->unit_number); 305 kfree(softc, M_DEVBUF); 306 } 307 308 static void 309 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 310 { 311 struct cam_periph *periph; 312 313 periph = (struct cam_periph *)callback_arg; 314 315 switch(code) { 316 case AC_FOUND_DEVICE: 317 { 318 struct ccb_getdev *cgd; 319 cam_status status; 320 321 cgd = (struct ccb_getdev *)arg; 322 323 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 324 break; 325 326 /* 327 * Allocate a peripheral instance for 328 * this device and start the probe 329 * process. 330 */ 331 status = cam_periph_alloc(chregister, choninvalidate, 332 chcleanup, chstart, "ch", 333 CAM_PERIPH_BIO, cgd->ccb_h.path, 334 chasync, AC_FOUND_DEVICE, cgd); 335 336 if (status != CAM_REQ_CMP 337 && status != CAM_REQ_INPROG) 338 kprintf("chasync: Unable to probe new device " 339 "due to status 0x%x\n", status); 340 341 break; 342 343 } 344 default: 345 cam_periph_async(periph, code, path, arg); 346 break; 347 } 348 } 349 350 static cam_status 351 chregister(struct cam_periph *periph, void *arg) 352 { 353 struct ch_softc *softc; 354 struct ccb_setasync csa; 355 struct ccb_getdev *cgd; 356 357 cgd = (struct ccb_getdev *)arg; 358 if (periph == NULL) { 359 kprintf("chregister: periph was NULL!!\n"); 360 return(CAM_REQ_CMP_ERR); 361 } 362 363 if (cgd == NULL) { 364 kprintf("chregister: no getdev CCB, can't register device\n"); 365 return(CAM_REQ_CMP_ERR); 366 } 367 368 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 369 softc->state = CH_STATE_PROBE; 370 periph->softc = softc; 371 cam_extend_set(chperiphs, periph->unit_number, periph); 372 softc->quirks = CH_Q_NONE; 373 374 /* 375 * Changers don't have a blocksize, and obviously don't support 376 * tagged queueing. 377 */ 378 devstat_add_entry(&softc->device_stats, "ch", 379 periph->unit_number, 0, 380 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 381 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 382 DEVSTAT_PRIORITY_OTHER); 383 384 /* Register the device */ 385 dev_ops_add(&ch_ops, -1, periph->unit_number); 386 make_dev(&ch_ops, periph->unit_number, UID_ROOT, 387 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 388 periph->unit_number); 389 390 /* 391 * Add an async callback so that we get 392 * notified if this device goes away. 393 */ 394 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 395 csa.ccb_h.func_code = XPT_SASYNC_CB; 396 csa.event_enable = AC_LOST_DEVICE; 397 csa.callback = chasync; 398 csa.callback_arg = periph; 399 xpt_action((union ccb *)&csa); 400 401 /* 402 * Lock this peripheral until we are setup. 403 * This first call can't block 404 */ 405 cam_periph_lock(periph, 0); 406 xpt_schedule(periph, /*priority*/5); 407 408 return(CAM_REQ_CMP); 409 } 410 411 static int 412 chopen(struct dev_open_args *ap) 413 { 414 cdev_t dev = ap->a_head.a_dev; 415 struct cam_periph *periph; 416 struct ch_softc *softc; 417 int unit, error; 418 419 unit = CHUNIT(dev); 420 periph = cam_extend_get(chperiphs, unit); 421 422 if (periph == NULL) 423 return(ENXIO); 424 425 softc = (struct ch_softc *)periph->softc; 426 427 crit_enter(); 428 if (softc->flags & CH_FLAG_INVALID) { 429 crit_exit(); 430 return(ENXIO); 431 } 432 433 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 434 crit_exit(); 435 return (error); 436 } 437 438 crit_exit(); 439 440 if ((softc->flags & CH_FLAG_OPEN) == 0) { 441 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 442 return(ENXIO); 443 softc->flags |= CH_FLAG_OPEN; 444 } 445 446 /* 447 * Load information about this changer device into the softc. 448 */ 449 if ((error = chgetparams(periph)) != 0) { 450 softc->flags &= ~CH_FLAG_OPEN; 451 cam_periph_unlock(periph); 452 cam_periph_release(periph); 453 return(error); 454 } 455 456 cam_periph_unlock(periph); 457 458 return(error); 459 } 460 461 static int 462 chclose(struct dev_close_args *ap) 463 { 464 cdev_t dev = ap->a_head.a_dev; 465 struct cam_periph *periph; 466 struct ch_softc *softc; 467 int unit, error; 468 469 error = 0; 470 471 unit = CHUNIT(dev); 472 periph = cam_extend_get(chperiphs, unit); 473 if (periph == NULL) 474 return(ENXIO); 475 476 softc = (struct ch_softc *)periph->softc; 477 478 if ((error = cam_periph_lock(periph, 0)) != 0) 479 return(error); 480 481 softc->flags &= ~CH_FLAG_OPEN; 482 483 cam_periph_unlock(periph); 484 cam_periph_release(periph); 485 486 return(0); 487 } 488 489 static void 490 chstart(struct cam_periph *periph, union ccb *start_ccb) 491 { 492 struct ch_softc *softc; 493 494 softc = (struct ch_softc *)periph->softc; 495 496 switch (softc->state) { 497 case CH_STATE_NORMAL: 498 { 499 crit_enter(); 500 if (periph->immediate_priority <= periph->pinfo.priority){ 501 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 502 503 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 504 periph_links.sle); 505 periph->immediate_priority = CAM_PRIORITY_NONE; 506 wakeup(&periph->ccb_list); 507 } 508 crit_exit(); 509 break; 510 } 511 case CH_STATE_PROBE: 512 { 513 int mode_buffer_len; 514 void *mode_buffer; 515 516 /* 517 * Include the block descriptor when calculating the mode 518 * buffer length, 519 */ 520 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 521 sizeof(struct scsi_mode_blk_desc) + 522 sizeof(struct page_element_address_assignment); 523 524 mode_buffer = kmalloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO); 525 /* 526 * Get the element address assignment page. 527 */ 528 scsi_mode_sense(&start_ccb->csio, 529 /* retries */ 1, 530 /* cbfcnp */ chdone, 531 /* tag_action */ MSG_SIMPLE_Q_TAG, 532 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 533 FALSE : TRUE, 534 /* page_code */ SMS_PAGE_CTRL_CURRENT, 535 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 536 /* param_buf */ (u_int8_t *)mode_buffer, 537 /* param_len */ mode_buffer_len, 538 /* sense_len */ SSD_FULL_SIZE, 539 /* timeout */ CH_TIMEOUT_MODE_SENSE); 540 541 start_ccb->ccb_h.ccb_bio = NULL; 542 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 543 xpt_action(start_ccb); 544 break; 545 } 546 } 547 } 548 549 static void 550 chdone(struct cam_periph *periph, union ccb *done_ccb) 551 { 552 struct ch_softc *softc; 553 struct ccb_scsiio *csio; 554 555 softc = (struct ch_softc *)periph->softc; 556 csio = &done_ccb->csio; 557 558 switch(done_ccb->ccb_h.ccb_state) { 559 case CH_CCB_PROBE: 560 { 561 struct scsi_mode_header_6 *mode_header; 562 struct page_element_address_assignment *ea; 563 char announce_buf[80]; 564 565 566 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 567 568 ea = (struct page_element_address_assignment *) 569 find_mode_page_6(mode_header); 570 571 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 572 573 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 574 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 575 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 576 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 577 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 578 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 579 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 580 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 581 softc->sc_picker = softc->sc_firsts[CHET_MT]; 582 583 #define PLURAL(c) (c) == 1 ? "" : "s" 584 ksnprintf(announce_buf, sizeof(announce_buf), 585 "%d slot%s, %d drive%s, " 586 "%d picker%s, %d portal%s", 587 softc->sc_counts[CHET_ST], 588 PLURAL(softc->sc_counts[CHET_ST]), 589 softc->sc_counts[CHET_DT], 590 PLURAL(softc->sc_counts[CHET_DT]), 591 softc->sc_counts[CHET_MT], 592 PLURAL(softc->sc_counts[CHET_MT]), 593 softc->sc_counts[CHET_IE], 594 PLURAL(softc->sc_counts[CHET_IE])); 595 #undef PLURAL 596 } else { 597 int error; 598 599 error = cherror(done_ccb, CAM_RETRY_SELTO, 600 SF_RETRY_UA | SF_NO_PRINT); 601 /* 602 * Retry any UNIT ATTENTION type errors. They 603 * are expected at boot. 604 */ 605 if (error == ERESTART) { 606 /* 607 * A retry was scheuled, so 608 * just return. 609 */ 610 return; 611 } else if (error != 0) { 612 int retry_scheduled; 613 struct scsi_mode_sense_6 *sms; 614 615 sms = (struct scsi_mode_sense_6 *) 616 done_ccb->csio.cdb_io.cdb_bytes; 617 618 /* 619 * Check to see if block descriptors were 620 * disabled. Some devices don't like that. 621 * We're taking advantage of the fact that 622 * the first few bytes of the 6 and 10 byte 623 * mode sense commands are the same. If 624 * block descriptors were disabled, enable 625 * them and re-send the command. 626 */ 627 if (sms->byte2 & SMS_DBD) { 628 sms->byte2 &= ~SMS_DBD; 629 xpt_action(done_ccb); 630 softc->quirks |= CH_Q_NO_DBD; 631 retry_scheduled = 1; 632 } else 633 retry_scheduled = 0; 634 635 /* Don't wedge this device's queue */ 636 cam_release_devq(done_ccb->ccb_h.path, 637 /*relsim_flags*/0, 638 /*reduction*/0, 639 /*timeout*/0, 640 /*getcount_only*/0); 641 642 if (retry_scheduled) 643 return; 644 645 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 646 == CAM_SCSI_STATUS_ERROR) 647 scsi_sense_print(&done_ccb->csio); 648 else { 649 xpt_print_path(periph->path); 650 kprintf("got CAM status %#x\n", 651 done_ccb->ccb_h.status); 652 } 653 xpt_print_path(periph->path); 654 kprintf("fatal error, failed to attach to" 655 " device\n"); 656 657 cam_periph_invalidate(periph); 658 659 announce_buf[0] = '\0'; 660 } 661 } 662 if (announce_buf[0] != '\0') 663 xpt_announce_periph(periph, announce_buf); 664 softc->state = CH_STATE_NORMAL; 665 kfree(mode_header, M_TEMP); 666 /* 667 * Since our peripheral may be invalidated by an error 668 * above or an external event, we must release our CCB 669 * before releasing the probe lock on the peripheral. 670 * The peripheral will only go away once the last lock 671 * is removed, and we need it around for the CCB release 672 * operation. 673 */ 674 xpt_release_ccb(done_ccb); 675 cam_periph_unlock(periph); 676 return; 677 } 678 case CH_CCB_WAITING: 679 { 680 /* Caller will release the CCB */ 681 wakeup(&done_ccb->ccb_h.cbfcnp); 682 return; 683 } 684 default: 685 break; 686 } 687 xpt_release_ccb(done_ccb); 688 } 689 690 static int 691 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 692 { 693 struct ch_softc *softc; 694 struct cam_periph *periph; 695 696 periph = xpt_path_periph(ccb->ccb_h.path); 697 softc = (struct ch_softc *)periph->softc; 698 699 return (cam_periph_error(ccb, cam_flags, sense_flags, 700 &softc->saved_ccb)); 701 } 702 703 static int 704 chioctl(struct dev_ioctl_args *ap) 705 { 706 cdev_t dev = ap->a_head.a_dev; 707 caddr_t addr = ap->a_data; 708 int flag = ap->a_fflag; 709 struct cam_periph *periph; 710 struct ch_softc *softc; 711 u_int8_t unit; 712 int error; 713 714 unit = CHUNIT(dev); 715 716 periph = cam_extend_get(chperiphs, unit); 717 if (periph == NULL) 718 return(ENXIO); 719 720 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 721 722 softc = (struct ch_softc *)periph->softc; 723 724 error = 0; 725 726 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 727 ("trying to do ioctl %#lx\n", ap->a_cmd)); 728 729 /* 730 * If this command can change the device's state, we must 731 * have the device open for writing. 732 */ 733 switch (ap->a_cmd) { 734 case CHIOGPICKER: 735 case CHIOGPARAMS: 736 case CHIOGSTATUS: 737 break; 738 739 default: 740 if ((flag & FWRITE) == 0) 741 return (EBADF); 742 } 743 744 switch (ap->a_cmd) { 745 case CHIOMOVE: 746 error = chmove(periph, (struct changer_move *)addr); 747 break; 748 749 case CHIOEXCHANGE: 750 error = chexchange(periph, (struct changer_exchange *)addr); 751 break; 752 753 case CHIOPOSITION: 754 error = chposition(periph, (struct changer_position *)addr); 755 break; 756 757 case CHIOGPICKER: 758 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 759 break; 760 761 case CHIOSPICKER: 762 { 763 int new_picker = *(int *)addr; 764 765 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) 766 return (EINVAL); 767 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 768 break; 769 } 770 case CHIOGPARAMS: 771 { 772 struct changer_params *cp = (struct changer_params *)addr; 773 774 cp->cp_npickers = softc->sc_counts[CHET_MT]; 775 cp->cp_nslots = softc->sc_counts[CHET_ST]; 776 cp->cp_nportals = softc->sc_counts[CHET_IE]; 777 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 778 break; 779 } 780 case CHIOIELEM: 781 error = chielem(periph, *(unsigned int *)addr); 782 break; 783 784 case CHIOGSTATUS: 785 { 786 error = chgetelemstatus(periph, 787 (struct changer_element_status_request *) addr); 788 break; 789 } 790 791 case CHIOSETVOLTAG: 792 { 793 error = chsetvoltag(periph, 794 (struct changer_set_voltag_request *) addr); 795 break; 796 } 797 798 /* Implement prevent/allow? */ 799 800 default: 801 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror); 802 break; 803 } 804 805 return (error); 806 } 807 808 static int 809 chmove(struct cam_periph *periph, struct changer_move *cm) 810 { 811 struct ch_softc *softc; 812 u_int16_t fromelem, toelem; 813 union ccb *ccb; 814 int error; 815 816 error = 0; 817 softc = (struct ch_softc *)periph->softc; 818 819 /* 820 * Check arguments. 821 */ 822 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 823 return (EINVAL); 824 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 825 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 826 return (ENODEV); 827 828 /* 829 * Check the request against the changer's capabilities. 830 */ 831 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 832 return (ENODEV); 833 834 /* 835 * Calculate the source and destination elements. 836 */ 837 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 838 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 839 840 ccb = cam_periph_getccb(periph, /*priority*/ 1); 841 842 scsi_move_medium(&ccb->csio, 843 /* retries */ 1, 844 /* cbfcnp */ chdone, 845 /* tag_action */ MSG_SIMPLE_Q_TAG, 846 /* tea */ softc->sc_picker, 847 /* src */ fromelem, 848 /* dst */ toelem, 849 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 850 /* sense_len */ SSD_FULL_SIZE, 851 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 852 853 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 854 /*sense_flags*/ SF_RETRY_UA, 855 &softc->device_stats); 856 857 xpt_release_ccb(ccb); 858 859 return(error); 860 } 861 862 static int 863 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 864 { 865 struct ch_softc *softc; 866 u_int16_t src, dst1, dst2; 867 union ccb *ccb; 868 int error; 869 870 error = 0; 871 softc = (struct ch_softc *)periph->softc; 872 /* 873 * Check arguments. 874 */ 875 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 876 (ce->ce_sdsttype > CHET_DT)) 877 return (EINVAL); 878 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 879 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 880 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 881 return (ENODEV); 882 883 /* 884 * Check the request against the changer's capabilities. 885 */ 886 if (((softc->sc_exchangemask[ce->ce_srctype] & 887 (1 << ce->ce_fdsttype)) == 0) || 888 ((softc->sc_exchangemask[ce->ce_fdsttype] & 889 (1 << ce->ce_sdsttype)) == 0)) 890 return (ENODEV); 891 892 /* 893 * Calculate the source and destination elements. 894 */ 895 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 896 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 897 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 898 899 ccb = cam_periph_getccb(periph, /*priority*/ 1); 900 901 scsi_exchange_medium(&ccb->csio, 902 /* retries */ 1, 903 /* cbfcnp */ chdone, 904 /* tag_action */ MSG_SIMPLE_Q_TAG, 905 /* tea */ softc->sc_picker, 906 /* src */ src, 907 /* dst1 */ dst1, 908 /* dst2 */ dst2, 909 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 910 TRUE : FALSE, 911 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 912 TRUE : FALSE, 913 /* sense_len */ SSD_FULL_SIZE, 914 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 915 916 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO, 917 /*sense_flags*/ SF_RETRY_UA, 918 &softc->device_stats); 919 920 xpt_release_ccb(ccb); 921 922 return(error); 923 } 924 925 static int 926 chposition(struct cam_periph *periph, struct changer_position *cp) 927 { 928 struct ch_softc *softc; 929 u_int16_t dst; 930 union ccb *ccb; 931 int error; 932 933 error = 0; 934 softc = (struct ch_softc *)periph->softc; 935 936 /* 937 * Check arguments. 938 */ 939 if (cp->cp_type > CHET_DT) 940 return (EINVAL); 941 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 942 return (ENODEV); 943 944 /* 945 * Calculate the destination element. 946 */ 947 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 948 949 ccb = cam_periph_getccb(periph, /*priority*/ 1); 950 951 scsi_position_to_element(&ccb->csio, 952 /* retries */ 1, 953 /* cbfcnp */ chdone, 954 /* tag_action */ MSG_SIMPLE_Q_TAG, 955 /* tea */ softc->sc_picker, 956 /* dst */ dst, 957 /* invert */ (cp->cp_flags & CP_INVERT) ? 958 TRUE : FALSE, 959 /* sense_len */ SSD_FULL_SIZE, 960 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 961 962 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 963 /*sense_flags*/ SF_RETRY_UA, 964 &softc->device_stats); 965 966 xpt_release_ccb(ccb); 967 968 return(error); 969 } 970 971 /* 972 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 973 * to host native byte order in the volume serial number. The volume 974 * label as returned by the changer is transferred to user mode as 975 * nul-terminated string. Volume labels are truncated at the first 976 * space, as suggested by SCSI-2. 977 */ 978 static void 979 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 980 { 981 int i; 982 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 983 char c = voltag->vif[i]; 984 if (c && c != ' ') 985 uvoltag->cv_volid[i] = c; 986 else 987 break; 988 } 989 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 990 } 991 992 /* 993 * Copy an an element status descriptor to a user-mode 994 * changer_element_status structure. 995 */ 996 997 static void 998 copy_element_status(struct ch_softc *softc, 999 u_int16_t flags, 1000 struct read_element_status_descriptor *desc, 1001 struct changer_element_status *ces) 1002 { 1003 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1004 u_int16_t et; 1005 1006 ces->ces_int_addr = eaddr; 1007 /* set up logical address in element status */ 1008 for (et = CHET_MT; et <= CHET_DT; et++) { 1009 if ((softc->sc_firsts[et] <= eaddr) 1010 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1011 > eaddr)) { 1012 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1013 ces->ces_type = et; 1014 break; 1015 } 1016 } 1017 1018 ces->ces_flags = desc->flags1; 1019 1020 ces->ces_sensecode = desc->sense_code; 1021 ces->ces_sensequal = desc->sense_qual; 1022 1023 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1024 ces->ces_flags |= CES_INVERT; 1025 1026 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1027 1028 eaddr = scsi_2btoul(desc->ssea); 1029 1030 /* convert source address to logical format */ 1031 for (et = CHET_MT; et <= CHET_DT; et++) { 1032 if ((softc->sc_firsts[et] <= eaddr) 1033 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1034 > eaddr)) { 1035 ces->ces_source_addr = 1036 eaddr - softc->sc_firsts[et]; 1037 ces->ces_source_type = et; 1038 ces->ces_flags |= CES_SOURCE_VALID; 1039 break; 1040 } 1041 } 1042 1043 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1044 kprintf("ch: warning: could not map element source " 1045 "address %ud to a valid element type\n", 1046 eaddr); 1047 } 1048 1049 1050 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1051 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1052 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1053 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1054 1055 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1056 ces->ces_flags |= CES_SCSIID_VALID; 1057 ces->ces_scsi_id = desc->dt_scsi_addr; 1058 } 1059 1060 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1061 ces->ces_flags |= CES_LUN_VALID; 1062 ces->ces_scsi_lun = 1063 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1064 } 1065 } 1066 1067 static int 1068 chgetelemstatus(struct cam_periph *periph, 1069 struct changer_element_status_request *cesr) 1070 { 1071 struct read_element_status_header *st_hdr; 1072 struct read_element_status_page_header *pg_hdr; 1073 struct read_element_status_descriptor *desc; 1074 caddr_t data = NULL; 1075 size_t size, desclen; 1076 int avail, i, error = 0; 1077 struct changer_element_status *user_data = NULL; 1078 struct ch_softc *softc; 1079 union ccb *ccb; 1080 int chet = cesr->cesr_element_type; 1081 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1082 1083 softc = (struct ch_softc *)periph->softc; 1084 1085 /* perform argument checking */ 1086 1087 /* 1088 * Perform a range check on the cesr_element_{base,count} 1089 * request argument fields. 1090 */ 1091 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1092 || (cesr->cesr_element_base + cesr->cesr_element_count) 1093 > softc->sc_counts[chet]) 1094 return (EINVAL); 1095 1096 /* 1097 * Request one descriptor for the given element type. This 1098 * is used to determine the size of the descriptor so that 1099 * we can allocate enough storage for all of them. We assume 1100 * that the first one can fit into 1k. 1101 */ 1102 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT); 1103 1104 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1105 1106 scsi_read_element_status(&ccb->csio, 1107 /* retries */ 1, 1108 /* cbfcnp */ chdone, 1109 /* tag_action */ MSG_SIMPLE_Q_TAG, 1110 /* voltag */ want_voltags, 1111 /* sea */ softc->sc_firsts[chet], 1112 /* count */ 1, 1113 /* data_ptr */ data, 1114 /* dxfer_len */ 1024, 1115 /* sense_len */ SSD_FULL_SIZE, 1116 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1117 1118 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1119 /*sense_flags*/ SF_RETRY_UA, 1120 &softc->device_stats); 1121 1122 if (error) 1123 goto done; 1124 1125 st_hdr = (struct read_element_status_header *)data; 1126 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1127 sizeof(struct read_element_status_header)); 1128 desclen = scsi_2btoul(pg_hdr->edl); 1129 1130 size = sizeof(struct read_element_status_header) + 1131 sizeof(struct read_element_status_page_header) + 1132 (desclen * cesr->cesr_element_count); 1133 1134 /* 1135 * Reallocate storage for descriptors and get them from the 1136 * device. 1137 */ 1138 kfree(data, M_DEVBUF); 1139 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT); 1140 1141 scsi_read_element_status(&ccb->csio, 1142 /* retries */ 1, 1143 /* cbfcnp */ chdone, 1144 /* tag_action */ MSG_SIMPLE_Q_TAG, 1145 /* voltag */ want_voltags, 1146 /* sea */ softc->sc_firsts[chet] 1147 + cesr->cesr_element_base, 1148 /* count */ cesr->cesr_element_count, 1149 /* data_ptr */ data, 1150 /* dxfer_len */ size, 1151 /* sense_len */ SSD_FULL_SIZE, 1152 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1153 1154 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1155 /*sense_flags*/ SF_RETRY_UA, 1156 &softc->device_stats); 1157 1158 if (error) 1159 goto done; 1160 1161 /* 1162 * Fill in the user status array. 1163 */ 1164 st_hdr = (struct read_element_status_header *)data; 1165 avail = scsi_2btoul(st_hdr->count); 1166 1167 if (avail != cesr->cesr_element_count) { 1168 xpt_print_path(periph->path); 1169 kprintf("warning, READ ELEMENT STATUS avail != count\n"); 1170 } 1171 1172 user_data = (struct changer_element_status *) 1173 kmalloc(avail * sizeof(struct changer_element_status), 1174 M_DEVBUF, M_INTWAIT | M_ZERO); 1175 1176 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1177 sizeof(struct read_element_status_header) + 1178 sizeof(struct read_element_status_page_header)); 1179 /* 1180 * Set up the individual element status structures 1181 */ 1182 for (i = 0; i < avail; ++i) { 1183 struct changer_element_status *ces = &(user_data[i]); 1184 1185 copy_element_status(softc, pg_hdr->flags, desc, ces); 1186 1187 desc = (struct read_element_status_descriptor *) 1188 ((uintptr_t)desc + desclen); 1189 } 1190 1191 /* Copy element status structures out to userspace. */ 1192 error = copyout(user_data, 1193 cesr->cesr_element_status, 1194 avail * sizeof(struct changer_element_status)); 1195 1196 done: 1197 xpt_release_ccb(ccb); 1198 1199 if (data != NULL) 1200 kfree(data, M_DEVBUF); 1201 if (user_data != NULL) 1202 kfree(user_data, M_DEVBUF); 1203 1204 return (error); 1205 } 1206 1207 static int 1208 chielem(struct cam_periph *periph, 1209 unsigned int timeout) 1210 { 1211 union ccb *ccb; 1212 struct ch_softc *softc; 1213 int error; 1214 1215 if (!timeout) { 1216 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1217 } else { 1218 timeout *= 1000; 1219 } 1220 1221 error = 0; 1222 softc = (struct ch_softc *)periph->softc; 1223 1224 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1225 1226 scsi_initialize_element_status(&ccb->csio, 1227 /* retries */ 1, 1228 /* cbfcnp */ chdone, 1229 /* tag_action */ MSG_SIMPLE_Q_TAG, 1230 /* sense_len */ SSD_FULL_SIZE, 1231 /* timeout */ timeout); 1232 1233 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1234 /*sense_flags*/ SF_RETRY_UA, 1235 &softc->device_stats); 1236 1237 xpt_release_ccb(ccb); 1238 1239 return(error); 1240 } 1241 1242 static int 1243 chsetvoltag(struct cam_periph *periph, 1244 struct changer_set_voltag_request *csvr) 1245 { 1246 union ccb *ccb; 1247 struct ch_softc *softc; 1248 u_int16_t ea; 1249 u_int8_t sac; 1250 struct scsi_send_volume_tag_parameters ssvtp; 1251 int error; 1252 int i; 1253 1254 error = 0; 1255 softc = (struct ch_softc *)periph->softc; 1256 1257 bzero(&ssvtp, sizeof(ssvtp)); 1258 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1259 ssvtp.vitf[i] = ' '; 1260 } 1261 1262 /* 1263 * Check arguments. 1264 */ 1265 if (csvr->csvr_type > CHET_DT) 1266 return EINVAL; 1267 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1268 return ENODEV; 1269 1270 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1271 1272 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1273 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1274 case CSVR_MODE_SET: 1275 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1276 break; 1277 case CSVR_MODE_REPLACE: 1278 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1279 break; 1280 case CSVR_MODE_CLEAR: 1281 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1282 break; 1283 default: 1284 error = EINVAL; 1285 goto out; 1286 } 1287 } else { 1288 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1289 case CSVR_MODE_SET: 1290 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1291 break; 1292 case CSVR_MODE_REPLACE: 1293 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1294 break; 1295 case CSVR_MODE_CLEAR: 1296 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1297 break; 1298 default: 1299 error = EINVAL; 1300 goto out; 1301 } 1302 } 1303 1304 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1305 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1306 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1307 1308 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1309 1310 scsi_send_volume_tag(&ccb->csio, 1311 /* retries */ 1, 1312 /* cbfcnp */ chdone, 1313 /* tag_action */ MSG_SIMPLE_Q_TAG, 1314 /* element_address */ ea, 1315 /* send_action_code */ sac, 1316 /* parameters */ &ssvtp, 1317 /* sense_len */ SSD_FULL_SIZE, 1318 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1319 1320 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1321 /*sense_flags*/ SF_RETRY_UA, 1322 &softc->device_stats); 1323 1324 xpt_release_ccb(ccb); 1325 1326 out: 1327 return error; 1328 } 1329 1330 static int 1331 chgetparams(struct cam_periph *periph) 1332 { 1333 union ccb *ccb; 1334 struct ch_softc *softc; 1335 void *mode_buffer; 1336 int mode_buffer_len; 1337 struct page_element_address_assignment *ea; 1338 struct page_device_capabilities *cap; 1339 int error, from, dbd; 1340 u_int8_t *moves, *exchanges; 1341 1342 error = 0; 1343 1344 softc = (struct ch_softc *)periph->softc; 1345 1346 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1347 1348 /* 1349 * The scsi_mode_sense_data structure is just a convenience 1350 * structure that allows us to easily calculate the worst-case 1351 * storage size of the mode sense buffer. 1352 */ 1353 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1354 1355 mode_buffer = kmalloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO); 1356 1357 if (softc->quirks & CH_Q_NO_DBD) 1358 dbd = FALSE; 1359 else 1360 dbd = TRUE; 1361 1362 /* 1363 * Get the element address assignment page. 1364 */ 1365 scsi_mode_sense(&ccb->csio, 1366 /* retries */ 1, 1367 /* cbfcnp */ chdone, 1368 /* tag_action */ MSG_SIMPLE_Q_TAG, 1369 /* dbd */ dbd, 1370 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1371 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1372 /* param_buf */ (u_int8_t *)mode_buffer, 1373 /* param_len */ mode_buffer_len, 1374 /* sense_len */ SSD_FULL_SIZE, 1375 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1376 1377 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1378 /* sense_flags */ SF_RETRY_UA|SF_NO_PRINT, 1379 &softc->device_stats); 1380 1381 if (error) { 1382 if (dbd) { 1383 struct scsi_mode_sense_6 *sms; 1384 1385 sms = (struct scsi_mode_sense_6 *) 1386 ccb->csio.cdb_io.cdb_bytes; 1387 1388 sms->byte2 &= ~SMS_DBD; 1389 error = cam_periph_runccb(ccb, cherror, 1390 /*cam_flags*/ CAM_RETRY_SELTO, 1391 /*sense_flags*/ SF_RETRY_UA, 1392 &softc->device_stats); 1393 } else { 1394 /* 1395 * Since we disabled sense printing above, print 1396 * out the sense here since we got an error. 1397 */ 1398 scsi_sense_print(&ccb->csio); 1399 } 1400 1401 if (error) { 1402 xpt_print_path(periph->path); 1403 kprintf("chgetparams: error getting element " 1404 "address page\n"); 1405 xpt_release_ccb(ccb); 1406 kfree(mode_buffer, M_TEMP); 1407 return(error); 1408 } 1409 } 1410 1411 ea = (struct page_element_address_assignment *) 1412 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1413 1414 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1415 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1416 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1417 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1418 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1419 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1420 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1421 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1422 1423 bzero(mode_buffer, mode_buffer_len); 1424 1425 /* 1426 * Now get the device capabilities page. 1427 */ 1428 scsi_mode_sense(&ccb->csio, 1429 /* retries */ 1, 1430 /* cbfcnp */ chdone, 1431 /* tag_action */ MSG_SIMPLE_Q_TAG, 1432 /* dbd */ dbd, 1433 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1434 /* page */ CH_DEVICE_CAP_PAGE, 1435 /* param_buf */ (u_int8_t *)mode_buffer, 1436 /* param_len */ mode_buffer_len, 1437 /* sense_len */ SSD_FULL_SIZE, 1438 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1439 1440 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO, 1441 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT, 1442 &softc->device_stats); 1443 1444 if (error) { 1445 if (dbd) { 1446 struct scsi_mode_sense_6 *sms; 1447 1448 sms = (struct scsi_mode_sense_6 *) 1449 ccb->csio.cdb_io.cdb_bytes; 1450 1451 sms->byte2 &= ~SMS_DBD; 1452 error = cam_periph_runccb(ccb, cherror, 1453 /*cam_flags*/ CAM_RETRY_SELTO, 1454 /*sense_flags*/ SF_RETRY_UA, 1455 &softc->device_stats); 1456 } else { 1457 /* 1458 * Since we disabled sense printing above, print 1459 * out the sense here since we got an error. 1460 */ 1461 scsi_sense_print(&ccb->csio); 1462 } 1463 1464 if (error) { 1465 xpt_print_path(periph->path); 1466 kprintf("chgetparams: error getting device " 1467 "capabilities page\n"); 1468 xpt_release_ccb(ccb); 1469 kfree(mode_buffer, M_TEMP); 1470 return(error); 1471 } 1472 } 1473 1474 xpt_release_ccb(ccb); 1475 1476 cap = (struct page_device_capabilities *) 1477 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1478 1479 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1480 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1481 moves = &cap->move_from_mt; 1482 exchanges = &cap->exchange_with_mt; 1483 for (from = CHET_MT; from <= CHET_DT; ++from) { 1484 softc->sc_movemask[from] = moves[from]; 1485 softc->sc_exchangemask[from] = exchanges[from]; 1486 } 1487 1488 kfree(mode_buffer, M_TEMP); 1489 1490 return(error); 1491 } 1492 1493 void 1494 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1495 void (*cbfcnp)(struct cam_periph *, union ccb *), 1496 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1497 u_int32_t dst, int invert, u_int8_t sense_len, 1498 u_int32_t timeout) 1499 { 1500 struct scsi_move_medium *scsi_cmd; 1501 1502 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1503 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1504 1505 scsi_cmd->opcode = MOVE_MEDIUM; 1506 1507 scsi_ulto2b(tea, scsi_cmd->tea); 1508 scsi_ulto2b(src, scsi_cmd->src); 1509 scsi_ulto2b(dst, scsi_cmd->dst); 1510 1511 if (invert) 1512 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1513 1514 cam_fill_csio(csio, 1515 retries, 1516 cbfcnp, 1517 /*flags*/ CAM_DIR_NONE, 1518 tag_action, 1519 /*data_ptr*/ NULL, 1520 /*dxfer_len*/ 0, 1521 sense_len, 1522 sizeof(*scsi_cmd), 1523 timeout); 1524 } 1525 1526 void 1527 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1528 void (*cbfcnp)(struct cam_periph *, union ccb *), 1529 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1530 u_int32_t dst1, u_int32_t dst2, int invert1, 1531 int invert2, u_int8_t sense_len, u_int32_t timeout) 1532 { 1533 struct scsi_exchange_medium *scsi_cmd; 1534 1535 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1536 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1537 1538 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1539 1540 scsi_ulto2b(tea, scsi_cmd->tea); 1541 scsi_ulto2b(src, scsi_cmd->src); 1542 scsi_ulto2b(dst1, scsi_cmd->fdst); 1543 scsi_ulto2b(dst2, scsi_cmd->sdst); 1544 1545 if (invert1) 1546 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1547 1548 if (invert2) 1549 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1550 1551 cam_fill_csio(csio, 1552 retries, 1553 cbfcnp, 1554 /*flags*/ CAM_DIR_NONE, 1555 tag_action, 1556 /*data_ptr*/ NULL, 1557 /*dxfer_len*/ 0, 1558 sense_len, 1559 sizeof(*scsi_cmd), 1560 timeout); 1561 } 1562 1563 void 1564 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1565 void (*cbfcnp)(struct cam_periph *, union ccb *), 1566 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1567 int invert, u_int8_t sense_len, u_int32_t timeout) 1568 { 1569 struct scsi_position_to_element *scsi_cmd; 1570 1571 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1572 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1573 1574 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1575 1576 scsi_ulto2b(tea, scsi_cmd->tea); 1577 scsi_ulto2b(dst, scsi_cmd->dst); 1578 1579 if (invert) 1580 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1581 1582 cam_fill_csio(csio, 1583 retries, 1584 cbfcnp, 1585 /*flags*/ CAM_DIR_NONE, 1586 tag_action, 1587 /*data_ptr*/ NULL, 1588 /*dxfer_len*/ 0, 1589 sense_len, 1590 sizeof(*scsi_cmd), 1591 timeout); 1592 } 1593 1594 void 1595 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1596 void (*cbfcnp)(struct cam_periph *, union ccb *), 1597 u_int8_t tag_action, int voltag, u_int32_t sea, 1598 u_int32_t count, u_int8_t *data_ptr, 1599 u_int32_t dxfer_len, u_int8_t sense_len, 1600 u_int32_t timeout) 1601 { 1602 struct scsi_read_element_status *scsi_cmd; 1603 1604 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1605 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1606 1607 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1608 1609 scsi_ulto2b(sea, scsi_cmd->sea); 1610 scsi_ulto2b(count, scsi_cmd->count); 1611 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1612 1613 if (voltag) 1614 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1615 1616 cam_fill_csio(csio, 1617 retries, 1618 cbfcnp, 1619 /*flags*/ CAM_DIR_IN, 1620 tag_action, 1621 data_ptr, 1622 dxfer_len, 1623 sense_len, 1624 sizeof(*scsi_cmd), 1625 timeout); 1626 } 1627 1628 void 1629 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1630 void (*cbfcnp)(struct cam_periph *, union ccb *), 1631 u_int8_t tag_action, u_int8_t sense_len, 1632 u_int32_t timeout) 1633 { 1634 struct scsi_initialize_element_status *scsi_cmd; 1635 1636 scsi_cmd = (struct scsi_initialize_element_status *) 1637 &csio->cdb_io.cdb_bytes; 1638 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1639 1640 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1641 1642 cam_fill_csio(csio, 1643 retries, 1644 cbfcnp, 1645 /*flags*/ CAM_DIR_NONE, 1646 tag_action, 1647 /* data_ptr */ NULL, 1648 /* dxfer_len */ 0, 1649 sense_len, 1650 sizeof(*scsi_cmd), 1651 timeout); 1652 } 1653 1654 void 1655 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1656 void (*cbfcnp)(struct cam_periph *, union ccb *), 1657 u_int8_t tag_action, 1658 u_int16_t element_address, 1659 u_int8_t send_action_code, 1660 struct scsi_send_volume_tag_parameters *parameters, 1661 u_int8_t sense_len, u_int32_t timeout) 1662 { 1663 struct scsi_send_volume_tag *scsi_cmd; 1664 1665 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1666 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1667 1668 scsi_cmd->opcode = SEND_VOLUME_TAG; 1669 scsi_ulto2b(element_address, scsi_cmd->ea); 1670 scsi_cmd->sac = send_action_code; 1671 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1672 1673 cam_fill_csio(csio, 1674 retries, 1675 cbfcnp, 1676 /*flags*/ CAM_DIR_OUT, 1677 tag_action, 1678 /* data_ptr */ (u_int8_t *) parameters, 1679 sizeof(*parameters), 1680 sense_len, 1681 sizeof(*scsi_cmd), 1682 timeout); 1683 } 1684