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 1.19 2006/12/22 23:12:16 swildner 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/stat.h> 80 #include <sys/conf.h> 81 #include <sys/buf.h> 82 #include <sys/chio.h> 83 #include <sys/errno.h> 84 #include <sys/devicestat.h> 85 #include <sys/thread2.h> 86 87 #include "../cam.h" 88 #include "../cam_ccb.h" 89 #include "../cam_extend.h" 90 #include "../cam_periph.h" 91 #include "../cam_xpt_periph.h" 92 #include "../cam_queue.h" 93 #include "../cam_debug.h" 94 95 #include "scsi_all.h" 96 #include "scsi_message.h" 97 #include "scsi_ch.h" 98 99 /* 100 * Timeout definitions for various changer related commands. They may 101 * be too short for some devices (especially the timeout for INITIALIZE 102 * ELEMENT STATUS). 103 */ 104 105 static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000; 106 static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000; 107 static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000; 108 static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000; 109 static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000; 110 static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000; 111 static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000; 112 113 typedef enum { 114 CH_FLAG_INVALID = 0x001, 115 CH_FLAG_OPEN = 0x002 116 } ch_flags; 117 118 typedef enum { 119 CH_STATE_PROBE, 120 CH_STATE_NORMAL 121 } ch_state; 122 123 typedef enum { 124 CH_CCB_PROBE, 125 CH_CCB_WAITING 126 } ch_ccb_types; 127 128 typedef enum { 129 CH_Q_NONE = 0x00, 130 CH_Q_NO_DBD = 0x01 131 } ch_quirks; 132 133 #define ccb_state ppriv_field0 134 #define ccb_bio ppriv_ptr1 135 136 struct scsi_mode_sense_data { 137 struct scsi_mode_header_6 header; 138 struct scsi_mode_blk_desc blk_desc; 139 union { 140 struct page_element_address_assignment ea; 141 struct page_transport_geometry_parameters tg; 142 struct page_device_capabilities cap; 143 } pages; 144 }; 145 146 struct ch_softc { 147 ch_flags flags; 148 ch_state state; 149 ch_quirks quirks; 150 union ccb saved_ccb; 151 struct devstat device_stats; 152 153 int sc_picker; /* current picker */ 154 155 /* 156 * The following information is obtained from the 157 * element address assignment page. 158 */ 159 int sc_firsts[4]; /* firsts, indexed by CHET_* */ 160 int sc_counts[4]; /* counts, indexed by CHET_* */ 161 162 /* 163 * The following mask defines the legal combinations 164 * of elements for the MOVE MEDIUM command. 165 */ 166 u_int8_t sc_movemask[4]; 167 168 /* 169 * As above, but for EXCHANGE MEDIUM. 170 */ 171 u_int8_t sc_exchangemask[4]; 172 173 /* 174 * Quirks; see below. XXX KDM not implemented yet 175 */ 176 int sc_settledelay; /* delay for settle */ 177 }; 178 179 #define CHUNIT(x) (minor((x))) 180 #define CH_CDEV_MAJOR 17 181 182 static d_open_t chopen; 183 static d_close_t chclose; 184 static d_ioctl_t chioctl; 185 static periph_init_t chinit; 186 static periph_ctor_t chregister; 187 static periph_oninv_t choninvalidate; 188 static periph_dtor_t chcleanup; 189 static periph_start_t chstart; 190 static void chasync(void *callback_arg, u_int32_t code, 191 struct cam_path *path, void *arg); 192 static void chdone(struct cam_periph *periph, 193 union ccb *done_ccb); 194 static int cherror(union ccb *ccb, u_int32_t cam_flags, 195 u_int32_t sense_flags); 196 static int chmove(struct cam_periph *periph, 197 struct changer_move *cm); 198 static int chexchange(struct cam_periph *periph, 199 struct changer_exchange *ce); 200 static int chposition(struct cam_periph *periph, 201 struct changer_position *cp); 202 static int chgetelemstatus(struct cam_periph *periph, 203 struct changer_element_status_request *csr); 204 static int chsetvoltag(struct cam_periph *periph, 205 struct changer_set_voltag_request *csvr); 206 static int chielem(struct cam_periph *periph, 207 unsigned int timeout); 208 static int chgetparams(struct cam_periph *periph); 209 210 static struct periph_driver chdriver = 211 { 212 chinit, "ch", 213 TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0 214 }; 215 216 DATA_SET(periphdriver_set, chdriver); 217 218 static struct dev_ops ch_ops = { 219 { "ch", CH_CDEV_MAJOR, 0 }, 220 .d_open = chopen, 221 .d_close = chclose, 222 .d_ioctl = chioctl 223 }; 224 225 static struct extend_array *chperiphs; 226 227 void 228 chinit(void) 229 { 230 cam_status status; 231 struct cam_path *path; 232 233 /* 234 * Create our extend array for storing the devices we attach to. 235 */ 236 chperiphs = cam_extend_new(); 237 if (chperiphs == NULL) { 238 kprintf("ch: Failed to alloc extend array!\n"); 239 return; 240 } 241 242 /* 243 * Install a global async callback. This callback will 244 * receive async callbacks like "new device found". 245 */ 246 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID, 247 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD); 248 249 if (status == CAM_REQ_CMP) { 250 struct ccb_setasync csa; 251 252 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5); 253 csa.ccb_h.func_code = XPT_SASYNC_CB; 254 csa.event_enable = AC_FOUND_DEVICE; 255 csa.callback = chasync; 256 csa.callback_arg = NULL; 257 xpt_action((union ccb *)&csa); 258 status = csa.ccb_h.status; 259 xpt_free_path(path); 260 } 261 262 if (status != CAM_REQ_CMP) { 263 kprintf("ch: Failed to attach master async callback " 264 "due to status 0x%x!\n", status); 265 } 266 } 267 268 static void 269 choninvalidate(struct cam_periph *periph) 270 { 271 struct ch_softc *softc; 272 struct ccb_setasync csa; 273 274 softc = (struct ch_softc *)periph->softc; 275 276 /* 277 * De-register any async callbacks. 278 */ 279 xpt_setup_ccb(&csa.ccb_h, periph->path, 280 /* priority */ 5); 281 csa.ccb_h.func_code = XPT_SASYNC_CB; 282 csa.event_enable = 0; 283 csa.callback = chasync; 284 csa.callback_arg = periph; 285 xpt_action((union ccb *)&csa); 286 287 softc->flags |= CH_FLAG_INVALID; 288 289 xpt_print_path(periph->path); 290 kprintf("lost device\n"); 291 292 } 293 294 static void 295 chcleanup(struct cam_periph *periph) 296 { 297 struct ch_softc *softc; 298 299 softc = (struct ch_softc *)periph->softc; 300 301 devstat_remove_entry(&softc->device_stats); 302 cam_extend_release(chperiphs, periph->unit_number); 303 xpt_print_path(periph->path); 304 kprintf("removing device entry\n"); 305 dev_ops_remove(&ch_ops, -1, periph->unit_number); 306 kfree(softc, M_DEVBUF); 307 } 308 309 static void 310 chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg) 311 { 312 struct cam_periph *periph; 313 314 periph = (struct cam_periph *)callback_arg; 315 316 switch(code) { 317 case AC_FOUND_DEVICE: 318 { 319 struct ccb_getdev *cgd; 320 cam_status status; 321 322 cgd = (struct ccb_getdev *)arg; 323 324 if (SID_TYPE(&cgd->inq_data)!= T_CHANGER) 325 break; 326 327 /* 328 * Allocate a peripheral instance for 329 * this device and start the probe 330 * process. 331 */ 332 status = cam_periph_alloc(chregister, choninvalidate, 333 chcleanup, chstart, "ch", 334 CAM_PERIPH_BIO, cgd->ccb_h.path, 335 chasync, AC_FOUND_DEVICE, cgd); 336 337 if (status != CAM_REQ_CMP 338 && status != CAM_REQ_INPROG) 339 kprintf("chasync: Unable to probe new device " 340 "due to status 0x%x\n", status); 341 342 break; 343 344 } 345 default: 346 cam_periph_async(periph, code, path, arg); 347 break; 348 } 349 } 350 351 static cam_status 352 chregister(struct cam_periph *periph, void *arg) 353 { 354 struct ch_softc *softc; 355 struct ccb_setasync csa; 356 struct ccb_getdev *cgd; 357 358 cgd = (struct ccb_getdev *)arg; 359 if (periph == NULL) { 360 kprintf("chregister: periph was NULL!!\n"); 361 return(CAM_REQ_CMP_ERR); 362 } 363 364 if (cgd == NULL) { 365 kprintf("chregister: no getdev CCB, can't register device\n"); 366 return(CAM_REQ_CMP_ERR); 367 } 368 369 softc = kmalloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO); 370 softc->state = CH_STATE_PROBE; 371 periph->softc = softc; 372 cam_extend_set(chperiphs, periph->unit_number, periph); 373 softc->quirks = CH_Q_NONE; 374 375 /* 376 * Changers don't have a blocksize, and obviously don't support 377 * tagged queueing. 378 */ 379 devstat_add_entry(&softc->device_stats, "ch", 380 periph->unit_number, 0, 381 DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS, 382 SID_TYPE(&cgd->inq_data)| DEVSTAT_TYPE_IF_SCSI, 383 DEVSTAT_PRIORITY_OTHER); 384 385 /* Register the device */ 386 dev_ops_add(&ch_ops, -1, periph->unit_number); 387 make_dev(&ch_ops, periph->unit_number, UID_ROOT, 388 GID_OPERATOR, 0600, "%s%d", periph->periph_name, 389 periph->unit_number); 390 391 /* 392 * Add an async callback so that we get 393 * notified if this device goes away. 394 */ 395 xpt_setup_ccb(&csa.ccb_h, periph->path, /* priority */ 5); 396 csa.ccb_h.func_code = XPT_SASYNC_CB; 397 csa.event_enable = AC_LOST_DEVICE; 398 csa.callback = chasync; 399 csa.callback_arg = periph; 400 xpt_action((union ccb *)&csa); 401 402 /* 403 * Lock this peripheral until we are setup. 404 * This first call can't block 405 */ 406 cam_periph_lock(periph, 0); 407 xpt_schedule(periph, /*priority*/5); 408 409 return(CAM_REQ_CMP); 410 } 411 412 static int 413 chopen(struct dev_open_args *ap) 414 { 415 cdev_t dev = ap->a_head.a_dev; 416 struct cam_periph *periph; 417 struct ch_softc *softc; 418 int unit, error; 419 420 unit = CHUNIT(dev); 421 periph = cam_extend_get(chperiphs, unit); 422 423 if (periph == NULL) 424 return(ENXIO); 425 426 softc = (struct ch_softc *)periph->softc; 427 428 crit_enter(); 429 if (softc->flags & CH_FLAG_INVALID) { 430 crit_exit(); 431 return(ENXIO); 432 } 433 434 if ((error = cam_periph_lock(periph, PCATCH)) != 0) { 435 crit_exit(); 436 return (error); 437 } 438 439 crit_exit(); 440 441 if ((softc->flags & CH_FLAG_OPEN) == 0) { 442 if (cam_periph_acquire(periph) != CAM_REQ_CMP) 443 return(ENXIO); 444 softc->flags |= CH_FLAG_OPEN; 445 } 446 447 /* 448 * Load information about this changer device into the softc. 449 */ 450 if ((error = chgetparams(periph)) != 0) { 451 softc->flags &= ~CH_FLAG_OPEN; 452 cam_periph_unlock(periph); 453 cam_periph_release(periph); 454 return(error); 455 } 456 457 cam_periph_unlock(periph); 458 459 return(error); 460 } 461 462 static int 463 chclose(struct dev_close_args *ap) 464 { 465 cdev_t dev = ap->a_head.a_dev; 466 struct cam_periph *periph; 467 struct ch_softc *softc; 468 int unit, error; 469 470 error = 0; 471 472 unit = CHUNIT(dev); 473 periph = cam_extend_get(chperiphs, unit); 474 if (periph == NULL) 475 return(ENXIO); 476 477 softc = (struct ch_softc *)periph->softc; 478 479 if ((error = cam_periph_lock(periph, 0)) != 0) 480 return(error); 481 482 softc->flags &= ~CH_FLAG_OPEN; 483 484 cam_periph_unlock(periph); 485 cam_periph_release(periph); 486 487 return(0); 488 } 489 490 static void 491 chstart(struct cam_periph *periph, union ccb *start_ccb) 492 { 493 struct ch_softc *softc; 494 495 softc = (struct ch_softc *)periph->softc; 496 497 switch (softc->state) { 498 case CH_STATE_NORMAL: 499 { 500 crit_enter(); 501 if (periph->immediate_priority <= periph->pinfo.priority){ 502 start_ccb->ccb_h.ccb_state = CH_CCB_WAITING; 503 504 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 505 periph_links.sle); 506 periph->immediate_priority = CAM_PRIORITY_NONE; 507 wakeup(&periph->ccb_list); 508 } 509 crit_exit(); 510 break; 511 } 512 case CH_STATE_PROBE: 513 { 514 int mode_buffer_len; 515 void *mode_buffer; 516 517 /* 518 * Include the block descriptor when calculating the mode 519 * buffer length, 520 */ 521 mode_buffer_len = sizeof(struct scsi_mode_header_6) + 522 sizeof(struct scsi_mode_blk_desc) + 523 sizeof(struct page_element_address_assignment); 524 525 mode_buffer = kmalloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO); 526 /* 527 * Get the element address assignment page. 528 */ 529 scsi_mode_sense(&start_ccb->csio, 530 /* retries */ 1, 531 /* cbfcnp */ chdone, 532 /* tag_action */ MSG_SIMPLE_Q_TAG, 533 /* dbd */ (softc->quirks & CH_Q_NO_DBD) ? 534 FALSE : TRUE, 535 /* page_code */ SMS_PAGE_CTRL_CURRENT, 536 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 537 /* param_buf */ (u_int8_t *)mode_buffer, 538 /* param_len */ mode_buffer_len, 539 /* sense_len */ SSD_FULL_SIZE, 540 /* timeout */ CH_TIMEOUT_MODE_SENSE); 541 542 start_ccb->ccb_h.ccb_bio = NULL; 543 start_ccb->ccb_h.ccb_state = CH_CCB_PROBE; 544 xpt_action(start_ccb); 545 break; 546 } 547 } 548 } 549 550 static void 551 chdone(struct cam_periph *periph, union ccb *done_ccb) 552 { 553 struct ch_softc *softc; 554 struct ccb_scsiio *csio; 555 556 softc = (struct ch_softc *)periph->softc; 557 csio = &done_ccb->csio; 558 559 switch(done_ccb->ccb_h.ccb_state) { 560 case CH_CCB_PROBE: 561 { 562 struct scsi_mode_header_6 *mode_header; 563 struct page_element_address_assignment *ea; 564 char announce_buf[80]; 565 566 567 mode_header = (struct scsi_mode_header_6 *)csio->data_ptr; 568 569 ea = (struct page_element_address_assignment *) 570 find_mode_page_6(mode_header); 571 572 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){ 573 574 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 575 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 576 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 577 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 578 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 579 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 580 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 581 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 582 softc->sc_picker = softc->sc_firsts[CHET_MT]; 583 584 #define PLURAL(c) (c) == 1 ? "" : "s" 585 ksnprintf(announce_buf, sizeof(announce_buf), 586 "%d slot%s, %d drive%s, " 587 "%d picker%s, %d portal%s", 588 softc->sc_counts[CHET_ST], 589 PLURAL(softc->sc_counts[CHET_ST]), 590 softc->sc_counts[CHET_DT], 591 PLURAL(softc->sc_counts[CHET_DT]), 592 softc->sc_counts[CHET_MT], 593 PLURAL(softc->sc_counts[CHET_MT]), 594 softc->sc_counts[CHET_IE], 595 PLURAL(softc->sc_counts[CHET_IE])); 596 #undef PLURAL 597 } else { 598 int error; 599 600 error = cherror(done_ccb, 0, SF_RETRY_UA | 601 SF_NO_PRINT | SF_RETRY_SELTO); 602 /* 603 * Retry any UNIT ATTENTION type errors. They 604 * are expected at boot. 605 */ 606 if (error == ERESTART) { 607 /* 608 * A retry was scheuled, so 609 * just return. 610 */ 611 return; 612 } else if (error != 0) { 613 int retry_scheduled; 614 struct scsi_mode_sense_6 *sms; 615 616 sms = (struct scsi_mode_sense_6 *) 617 done_ccb->csio.cdb_io.cdb_bytes; 618 619 /* 620 * Check to see if block descriptors were 621 * disabled. Some devices don't like that. 622 * We're taking advantage of the fact that 623 * the first few bytes of the 6 and 10 byte 624 * mode sense commands are the same. If 625 * block descriptors were disabled, enable 626 * them and re-send the command. 627 */ 628 if (sms->byte2 & SMS_DBD) { 629 sms->byte2 &= ~SMS_DBD; 630 xpt_action(done_ccb); 631 softc->quirks |= CH_Q_NO_DBD; 632 retry_scheduled = 1; 633 } else 634 retry_scheduled = 0; 635 636 /* Don't wedge this device's queue */ 637 cam_release_devq(done_ccb->ccb_h.path, 638 /*relsim_flags*/0, 639 /*reduction*/0, 640 /*timeout*/0, 641 /*getcount_only*/0); 642 643 if (retry_scheduled) 644 return; 645 646 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) 647 == CAM_SCSI_STATUS_ERROR) 648 scsi_sense_print(&done_ccb->csio); 649 else { 650 xpt_print_path(periph->path); 651 kprintf("got CAM status %#x\n", 652 done_ccb->ccb_h.status); 653 } 654 xpt_print_path(periph->path); 655 kprintf("fatal error, failed to attach to" 656 " device\n"); 657 658 cam_periph_invalidate(periph); 659 660 announce_buf[0] = '\0'; 661 } 662 } 663 if (announce_buf[0] != '\0') 664 xpt_announce_periph(periph, announce_buf); 665 softc->state = CH_STATE_NORMAL; 666 kfree(mode_header, M_TEMP); 667 /* 668 * Since our peripheral may be invalidated by an error 669 * above or an external event, we must release our CCB 670 * before releasing the probe lock on the peripheral. 671 * The peripheral will only go away once the last lock 672 * is removed, and we need it around for the CCB release 673 * operation. 674 */ 675 xpt_release_ccb(done_ccb); 676 cam_periph_unlock(periph); 677 return; 678 } 679 case CH_CCB_WAITING: 680 { 681 /* Caller will release the CCB */ 682 wakeup(&done_ccb->ccb_h.cbfcnp); 683 return; 684 } 685 default: 686 break; 687 } 688 xpt_release_ccb(done_ccb); 689 } 690 691 static int 692 cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 693 { 694 struct ch_softc *softc; 695 struct cam_periph *periph; 696 697 periph = xpt_path_periph(ccb->ccb_h.path); 698 softc = (struct ch_softc *)periph->softc; 699 700 return (cam_periph_error(ccb, cam_flags, sense_flags, 701 &softc->saved_ccb)); 702 } 703 704 static int 705 chioctl(struct dev_ioctl_args *ap) 706 { 707 cdev_t dev = ap->a_head.a_dev; 708 caddr_t addr = ap->a_data; 709 int flag = ap->a_fflag; 710 struct cam_periph *periph; 711 struct ch_softc *softc; 712 u_int8_t unit; 713 int error; 714 715 unit = CHUNIT(dev); 716 717 periph = cam_extend_get(chperiphs, unit); 718 if (periph == NULL) 719 return(ENXIO); 720 721 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n")); 722 723 softc = (struct ch_softc *)periph->softc; 724 725 error = 0; 726 727 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 728 ("trying to do ioctl %#lx\n", ap->a_cmd)); 729 730 /* 731 * If this command can change the device's state, we must 732 * have the device open for writing. 733 */ 734 switch (ap->a_cmd) { 735 case CHIOGPICKER: 736 case CHIOGPARAMS: 737 case CHIOGSTATUS: 738 break; 739 740 default: 741 if ((flag & FWRITE) == 0) 742 return (EBADF); 743 } 744 745 switch (ap->a_cmd) { 746 case CHIOMOVE: 747 error = chmove(periph, (struct changer_move *)addr); 748 break; 749 750 case CHIOEXCHANGE: 751 error = chexchange(periph, (struct changer_exchange *)addr); 752 break; 753 754 case CHIOPOSITION: 755 error = chposition(periph, (struct changer_position *)addr); 756 break; 757 758 case CHIOGPICKER: 759 *(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT]; 760 break; 761 762 case CHIOSPICKER: 763 { 764 int new_picker = *(int *)addr; 765 766 if (new_picker > (softc->sc_counts[CHET_MT] - 1)) 767 return (EINVAL); 768 softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker; 769 break; 770 } 771 case CHIOGPARAMS: 772 { 773 struct changer_params *cp = (struct changer_params *)addr; 774 775 cp->cp_npickers = softc->sc_counts[CHET_MT]; 776 cp->cp_nslots = softc->sc_counts[CHET_ST]; 777 cp->cp_nportals = softc->sc_counts[CHET_IE]; 778 cp->cp_ndrives = softc->sc_counts[CHET_DT]; 779 break; 780 } 781 case CHIOIELEM: 782 error = chielem(periph, *(unsigned int *)addr); 783 break; 784 785 case CHIOGSTATUS: 786 { 787 error = chgetelemstatus(periph, 788 (struct changer_element_status_request *) addr); 789 break; 790 } 791 792 case CHIOSETVOLTAG: 793 { 794 error = chsetvoltag(periph, 795 (struct changer_set_voltag_request *) addr); 796 break; 797 } 798 799 /* Implement prevent/allow? */ 800 801 default: 802 error = cam_periph_ioctl(periph, ap->a_cmd, addr, cherror); 803 break; 804 } 805 806 return (error); 807 } 808 809 static int 810 chmove(struct cam_periph *periph, struct changer_move *cm) 811 { 812 struct ch_softc *softc; 813 u_int16_t fromelem, toelem; 814 union ccb *ccb; 815 int error; 816 817 error = 0; 818 softc = (struct ch_softc *)periph->softc; 819 820 /* 821 * Check arguments. 822 */ 823 if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT)) 824 return (EINVAL); 825 if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) || 826 (cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1))) 827 return (ENODEV); 828 829 /* 830 * Check the request against the changer's capabilities. 831 */ 832 if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0) 833 return (ENODEV); 834 835 /* 836 * Calculate the source and destination elements. 837 */ 838 fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit; 839 toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit; 840 841 ccb = cam_periph_getccb(periph, /*priority*/ 1); 842 843 scsi_move_medium(&ccb->csio, 844 /* retries */ 1, 845 /* cbfcnp */ chdone, 846 /* tag_action */ MSG_SIMPLE_Q_TAG, 847 /* tea */ softc->sc_picker, 848 /* src */ fromelem, 849 /* dst */ toelem, 850 /* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE, 851 /* sense_len */ SSD_FULL_SIZE, 852 /* timeout */ CH_TIMEOUT_MOVE_MEDIUM); 853 854 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/0, 855 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 856 &softc->device_stats); 857 858 xpt_release_ccb(ccb); 859 860 return(error); 861 } 862 863 static int 864 chexchange(struct cam_periph *periph, struct changer_exchange *ce) 865 { 866 struct ch_softc *softc; 867 u_int16_t src, dst1, dst2; 868 union ccb *ccb; 869 int error; 870 871 error = 0; 872 softc = (struct ch_softc *)periph->softc; 873 /* 874 * Check arguments. 875 */ 876 if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) || 877 (ce->ce_sdsttype > CHET_DT)) 878 return (EINVAL); 879 if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) || 880 (ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) || 881 (ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1))) 882 return (ENODEV); 883 884 /* 885 * Check the request against the changer's capabilities. 886 */ 887 if (((softc->sc_exchangemask[ce->ce_srctype] & 888 (1 << ce->ce_fdsttype)) == 0) || 889 ((softc->sc_exchangemask[ce->ce_fdsttype] & 890 (1 << ce->ce_sdsttype)) == 0)) 891 return (ENODEV); 892 893 /* 894 * Calculate the source and destination elements. 895 */ 896 src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit; 897 dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit; 898 dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit; 899 900 ccb = cam_periph_getccb(periph, /*priority*/ 1); 901 902 scsi_exchange_medium(&ccb->csio, 903 /* retries */ 1, 904 /* cbfcnp */ chdone, 905 /* tag_action */ MSG_SIMPLE_Q_TAG, 906 /* tea */ softc->sc_picker, 907 /* src */ src, 908 /* dst1 */ dst1, 909 /* dst2 */ dst2, 910 /* invert1 */ (ce->ce_flags & CE_INVERT1) ? 911 TRUE : FALSE, 912 /* invert2 */ (ce->ce_flags & CE_INVERT2) ? 913 TRUE : FALSE, 914 /* sense_len */ SSD_FULL_SIZE, 915 /* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM); 916 917 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/0, 918 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 919 &softc->device_stats); 920 921 xpt_release_ccb(ccb); 922 923 return(error); 924 } 925 926 static int 927 chposition(struct cam_periph *periph, struct changer_position *cp) 928 { 929 struct ch_softc *softc; 930 u_int16_t dst; 931 union ccb *ccb; 932 int error; 933 934 error = 0; 935 softc = (struct ch_softc *)periph->softc; 936 937 /* 938 * Check arguments. 939 */ 940 if (cp->cp_type > CHET_DT) 941 return (EINVAL); 942 if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1)) 943 return (ENODEV); 944 945 /* 946 * Calculate the destination element. 947 */ 948 dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit; 949 950 ccb = cam_periph_getccb(periph, /*priority*/ 1); 951 952 scsi_position_to_element(&ccb->csio, 953 /* retries */ 1, 954 /* cbfcnp */ chdone, 955 /* tag_action */ MSG_SIMPLE_Q_TAG, 956 /* tea */ softc->sc_picker, 957 /* dst */ dst, 958 /* invert */ (cp->cp_flags & CP_INVERT) ? 959 TRUE : FALSE, 960 /* sense_len */ SSD_FULL_SIZE, 961 /* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT); 962 963 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 964 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 965 &softc->device_stats); 966 967 xpt_release_ccb(ccb); 968 969 return(error); 970 } 971 972 /* 973 * Copy a volume tag to a volume_tag struct, converting SCSI byte order 974 * to host native byte order in the volume serial number. The volume 975 * label as returned by the changer is transferred to user mode as 976 * nul-terminated string. Volume labels are truncated at the first 977 * space, as suggested by SCSI-2. 978 */ 979 static void 980 copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag) 981 { 982 int i; 983 for (i=0; i<CH_VOLTAG_MAXLEN; i++) { 984 char c = voltag->vif[i]; 985 if (c && c != ' ') 986 uvoltag->cv_volid[i] = c; 987 else 988 break; 989 } 990 uvoltag->cv_serial = scsi_2btoul(voltag->vsn); 991 } 992 993 /* 994 * Copy an an element status descriptor to a user-mode 995 * changer_element_status structure. 996 */ 997 998 static void 999 copy_element_status(struct ch_softc *softc, 1000 u_int16_t flags, 1001 struct read_element_status_descriptor *desc, 1002 struct changer_element_status *ces) 1003 { 1004 u_int16_t eaddr = scsi_2btoul(desc->eaddr); 1005 u_int16_t et; 1006 1007 ces->ces_int_addr = eaddr; 1008 /* set up logical address in element status */ 1009 for (et = CHET_MT; et <= CHET_DT; et++) { 1010 if ((softc->sc_firsts[et] <= eaddr) 1011 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1012 > eaddr)) { 1013 ces->ces_addr = eaddr - softc->sc_firsts[et]; 1014 ces->ces_type = et; 1015 break; 1016 } 1017 } 1018 1019 ces->ces_flags = desc->flags1; 1020 1021 ces->ces_sensecode = desc->sense_code; 1022 ces->ces_sensequal = desc->sense_qual; 1023 1024 if (desc->flags2 & READ_ELEMENT_STATUS_INVERT) 1025 ces->ces_flags |= CES_INVERT; 1026 1027 if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) { 1028 1029 eaddr = scsi_2btoul(desc->ssea); 1030 1031 /* convert source address to logical format */ 1032 for (et = CHET_MT; et <= CHET_DT; et++) { 1033 if ((softc->sc_firsts[et] <= eaddr) 1034 && ((softc->sc_firsts[et] + softc->sc_counts[et]) 1035 > eaddr)) { 1036 ces->ces_source_addr = 1037 eaddr - softc->sc_firsts[et]; 1038 ces->ces_source_type = et; 1039 ces->ces_flags |= CES_SOURCE_VALID; 1040 break; 1041 } 1042 } 1043 1044 if (!(ces->ces_flags & CES_SOURCE_VALID)) 1045 kprintf("ch: warning: could not map element source " 1046 "address %ud to a valid element type\n", 1047 eaddr); 1048 } 1049 1050 1051 if (flags & READ_ELEMENT_STATUS_PVOLTAG) 1052 copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag)); 1053 if (flags & READ_ELEMENT_STATUS_AVOLTAG) 1054 copy_voltag(&(ces->ces_avoltag), &(desc->avoltag)); 1055 1056 if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) { 1057 ces->ces_flags |= CES_SCSIID_VALID; 1058 ces->ces_scsi_id = desc->dt_scsi_addr; 1059 } 1060 1061 if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) { 1062 ces->ces_flags |= CES_LUN_VALID; 1063 ces->ces_scsi_lun = 1064 desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK; 1065 } 1066 } 1067 1068 static int 1069 chgetelemstatus(struct cam_periph *periph, 1070 struct changer_element_status_request *cesr) 1071 { 1072 struct read_element_status_header *st_hdr; 1073 struct read_element_status_page_header *pg_hdr; 1074 struct read_element_status_descriptor *desc; 1075 caddr_t data = NULL; 1076 size_t size, desclen; 1077 int avail, i, error = 0; 1078 struct changer_element_status *user_data = NULL; 1079 struct ch_softc *softc; 1080 union ccb *ccb; 1081 int chet = cesr->cesr_element_type; 1082 int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0; 1083 1084 softc = (struct ch_softc *)periph->softc; 1085 1086 /* perform argument checking */ 1087 1088 /* 1089 * Perform a range check on the cesr_element_{base,count} 1090 * request argument fields. 1091 */ 1092 if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0 1093 || (cesr->cesr_element_base + cesr->cesr_element_count) 1094 > softc->sc_counts[chet]) 1095 return (EINVAL); 1096 1097 /* 1098 * Request one descriptor for the given element type. This 1099 * is used to determine the size of the descriptor so that 1100 * we can allocate enough storage for all of them. We assume 1101 * that the first one can fit into 1k. 1102 */ 1103 data = (caddr_t)kmalloc(1024, M_DEVBUF, M_INTWAIT); 1104 1105 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1106 1107 scsi_read_element_status(&ccb->csio, 1108 /* retries */ 1, 1109 /* cbfcnp */ chdone, 1110 /* tag_action */ MSG_SIMPLE_Q_TAG, 1111 /* voltag */ want_voltags, 1112 /* sea */ softc->sc_firsts[chet], 1113 /* count */ 1, 1114 /* data_ptr */ data, 1115 /* dxfer_len */ 1024, 1116 /* sense_len */ SSD_FULL_SIZE, 1117 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1118 1119 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1120 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1121 &softc->device_stats); 1122 1123 if (error) 1124 goto done; 1125 1126 st_hdr = (struct read_element_status_header *)data; 1127 pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr + 1128 sizeof(struct read_element_status_header)); 1129 desclen = scsi_2btoul(pg_hdr->edl); 1130 1131 size = sizeof(struct read_element_status_header) + 1132 sizeof(struct read_element_status_page_header) + 1133 (desclen * cesr->cesr_element_count); 1134 1135 /* 1136 * Reallocate storage for descriptors and get them from the 1137 * device. 1138 */ 1139 kfree(data, M_DEVBUF); 1140 data = (caddr_t)kmalloc(size, M_DEVBUF, M_INTWAIT); 1141 1142 scsi_read_element_status(&ccb->csio, 1143 /* retries */ 1, 1144 /* cbfcnp */ chdone, 1145 /* tag_action */ MSG_SIMPLE_Q_TAG, 1146 /* voltag */ want_voltags, 1147 /* sea */ softc->sc_firsts[chet] 1148 + cesr->cesr_element_base, 1149 /* count */ cesr->cesr_element_count, 1150 /* data_ptr */ data, 1151 /* dxfer_len */ size, 1152 /* sense_len */ SSD_FULL_SIZE, 1153 /* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS); 1154 1155 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1156 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1157 &softc->device_stats); 1158 1159 if (error) 1160 goto done; 1161 1162 /* 1163 * Fill in the user status array. 1164 */ 1165 st_hdr = (struct read_element_status_header *)data; 1166 avail = scsi_2btoul(st_hdr->count); 1167 1168 if (avail != cesr->cesr_element_count) { 1169 xpt_print_path(periph->path); 1170 kprintf("warning, READ ELEMENT STATUS avail != count\n"); 1171 } 1172 1173 user_data = (struct changer_element_status *) 1174 kmalloc(avail * sizeof(struct changer_element_status), 1175 M_DEVBUF, M_INTWAIT | M_ZERO); 1176 1177 desc = (struct read_element_status_descriptor *)((uintptr_t)data + 1178 sizeof(struct read_element_status_header) + 1179 sizeof(struct read_element_status_page_header)); 1180 /* 1181 * Set up the individual element status structures 1182 */ 1183 for (i = 0; i < avail; ++i) { 1184 struct changer_element_status *ces = &(user_data[i]); 1185 1186 copy_element_status(softc, pg_hdr->flags, desc, ces); 1187 1188 desc = (struct read_element_status_descriptor *) 1189 ((uintptr_t)desc + desclen); 1190 } 1191 1192 /* Copy element status structures out to userspace. */ 1193 error = copyout(user_data, 1194 cesr->cesr_element_status, 1195 avail * sizeof(struct changer_element_status)); 1196 1197 done: 1198 xpt_release_ccb(ccb); 1199 1200 if (data != NULL) 1201 kfree(data, M_DEVBUF); 1202 if (user_data != NULL) 1203 kfree(user_data, M_DEVBUF); 1204 1205 return (error); 1206 } 1207 1208 static int 1209 chielem(struct cam_periph *periph, 1210 unsigned int timeout) 1211 { 1212 union ccb *ccb; 1213 struct ch_softc *softc; 1214 int error; 1215 1216 if (!timeout) { 1217 timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS; 1218 } else { 1219 timeout *= 1000; 1220 } 1221 1222 error = 0; 1223 softc = (struct ch_softc *)periph->softc; 1224 1225 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1226 1227 scsi_initialize_element_status(&ccb->csio, 1228 /* retries */ 1, 1229 /* cbfcnp */ chdone, 1230 /* tag_action */ MSG_SIMPLE_Q_TAG, 1231 /* sense_len */ SSD_FULL_SIZE, 1232 /* timeout */ timeout); 1233 1234 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1235 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1236 &softc->device_stats); 1237 1238 xpt_release_ccb(ccb); 1239 1240 return(error); 1241 } 1242 1243 static int 1244 chsetvoltag(struct cam_periph *periph, 1245 struct changer_set_voltag_request *csvr) 1246 { 1247 union ccb *ccb; 1248 struct ch_softc *softc; 1249 u_int16_t ea; 1250 u_int8_t sac; 1251 struct scsi_send_volume_tag_parameters ssvtp; 1252 int error; 1253 int i; 1254 1255 error = 0; 1256 softc = (struct ch_softc *)periph->softc; 1257 1258 bzero(&ssvtp, sizeof(ssvtp)); 1259 for (i=0; i<sizeof(ssvtp.vitf); i++) { 1260 ssvtp.vitf[i] = ' '; 1261 } 1262 1263 /* 1264 * Check arguments. 1265 */ 1266 if (csvr->csvr_type > CHET_DT) 1267 return EINVAL; 1268 if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1)) 1269 return ENODEV; 1270 1271 ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr; 1272 1273 if (csvr->csvr_flags & CSVR_ALTERNATE) { 1274 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1275 case CSVR_MODE_SET: 1276 sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE; 1277 break; 1278 case CSVR_MODE_REPLACE: 1279 sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE; 1280 break; 1281 case CSVR_MODE_CLEAR: 1282 sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE; 1283 break; 1284 default: 1285 error = EINVAL; 1286 goto out; 1287 } 1288 } else { 1289 switch (csvr->csvr_flags & CSVR_MODE_MASK) { 1290 case CSVR_MODE_SET: 1291 sac = SEND_VOLUME_TAG_ASSERT_PRIMARY; 1292 break; 1293 case CSVR_MODE_REPLACE: 1294 sac = SEND_VOLUME_TAG_REPLACE_PRIMARY; 1295 break; 1296 case CSVR_MODE_CLEAR: 1297 sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY; 1298 break; 1299 default: 1300 error = EINVAL; 1301 goto out; 1302 } 1303 } 1304 1305 memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid, 1306 min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf))); 1307 scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn); 1308 1309 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1310 1311 scsi_send_volume_tag(&ccb->csio, 1312 /* retries */ 1, 1313 /* cbfcnp */ chdone, 1314 /* tag_action */ MSG_SIMPLE_Q_TAG, 1315 /* element_address */ ea, 1316 /* send_action_code */ sac, 1317 /* parameters */ &ssvtp, 1318 /* sense_len */ SSD_FULL_SIZE, 1319 /* timeout */ CH_TIMEOUT_SEND_VOLTAG); 1320 1321 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1322 /*sense_flags*/ SF_RETRY_UA | SF_RETRY_SELTO, 1323 &softc->device_stats); 1324 1325 xpt_release_ccb(ccb); 1326 1327 out: 1328 return error; 1329 } 1330 1331 static int 1332 chgetparams(struct cam_periph *periph) 1333 { 1334 union ccb *ccb; 1335 struct ch_softc *softc; 1336 void *mode_buffer; 1337 int mode_buffer_len; 1338 struct page_element_address_assignment *ea; 1339 struct page_device_capabilities *cap; 1340 int error, from, dbd; 1341 u_int8_t *moves, *exchanges; 1342 1343 error = 0; 1344 1345 softc = (struct ch_softc *)periph->softc; 1346 1347 ccb = cam_periph_getccb(periph, /*priority*/ 1); 1348 1349 /* 1350 * The scsi_mode_sense_data structure is just a convenience 1351 * structure that allows us to easily calculate the worst-case 1352 * storage size of the mode sense buffer. 1353 */ 1354 mode_buffer_len = sizeof(struct scsi_mode_sense_data); 1355 1356 mode_buffer = kmalloc(mode_buffer_len, M_TEMP, M_INTWAIT | M_ZERO); 1357 1358 if (softc->quirks & CH_Q_NO_DBD) 1359 dbd = FALSE; 1360 else 1361 dbd = TRUE; 1362 1363 /* 1364 * Get the element address assignment page. 1365 */ 1366 scsi_mode_sense(&ccb->csio, 1367 /* retries */ 1, 1368 /* cbfcnp */ chdone, 1369 /* tag_action */ MSG_SIMPLE_Q_TAG, 1370 /* dbd */ dbd, 1371 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1372 /* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE, 1373 /* param_buf */ (u_int8_t *)mode_buffer, 1374 /* param_len */ mode_buffer_len, 1375 /* sense_len */ SSD_FULL_SIZE, 1376 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1377 1378 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1379 /* sense_flags */ SF_RETRY_UA | 1380 SF_NO_PRINT | SF_RETRY_SELTO, 1381 &softc->device_stats); 1382 1383 if (error) { 1384 if (dbd) { 1385 struct scsi_mode_sense_6 *sms; 1386 1387 sms = (struct scsi_mode_sense_6 *) 1388 ccb->csio.cdb_io.cdb_bytes; 1389 1390 sms->byte2 &= ~SMS_DBD; 1391 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1392 /*sense_flags*/ SF_RETRY_UA | 1393 SF_RETRY_SELTO, 1394 &softc->device_stats); 1395 } else { 1396 /* 1397 * Since we disabled sense printing above, print 1398 * out the sense here since we got an error. 1399 */ 1400 scsi_sense_print(&ccb->csio); 1401 } 1402 1403 if (error) { 1404 xpt_print_path(periph->path); 1405 kprintf("chgetparams: error getting element " 1406 "address page\n"); 1407 xpt_release_ccb(ccb); 1408 kfree(mode_buffer, M_TEMP); 1409 return(error); 1410 } 1411 } 1412 1413 ea = (struct page_element_address_assignment *) 1414 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1415 1416 softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea); 1417 softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte); 1418 softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea); 1419 softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse); 1420 softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea); 1421 softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee); 1422 softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea); 1423 softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte); 1424 1425 bzero(mode_buffer, mode_buffer_len); 1426 1427 /* 1428 * Now get the device capabilities page. 1429 */ 1430 scsi_mode_sense(&ccb->csio, 1431 /* retries */ 1, 1432 /* cbfcnp */ chdone, 1433 /* tag_action */ MSG_SIMPLE_Q_TAG, 1434 /* dbd */ dbd, 1435 /* page_code */ SMS_PAGE_CTRL_CURRENT, 1436 /* page */ CH_DEVICE_CAP_PAGE, 1437 /* param_buf */ (u_int8_t *)mode_buffer, 1438 /* param_len */ mode_buffer_len, 1439 /* sense_len */ SSD_FULL_SIZE, 1440 /* timeout */ CH_TIMEOUT_MODE_SENSE); 1441 1442 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1443 /* sense_flags */ SF_RETRY_UA | SF_NO_PRINT | 1444 SF_RETRY_SELTO, &softc->device_stats); 1445 1446 if (error) { 1447 if (dbd) { 1448 struct scsi_mode_sense_6 *sms; 1449 1450 sms = (struct scsi_mode_sense_6 *) 1451 ccb->csio.cdb_io.cdb_bytes; 1452 1453 sms->byte2 &= ~SMS_DBD; 1454 error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ 0, 1455 /*sense_flags*/ SF_RETRY_UA | 1456 SF_RETRY_SELTO, 1457 &softc->device_stats); 1458 } else { 1459 /* 1460 * Since we disabled sense printing above, print 1461 * out the sense here since we got an error. 1462 */ 1463 scsi_sense_print(&ccb->csio); 1464 } 1465 1466 if (error) { 1467 xpt_print_path(periph->path); 1468 kprintf("chgetparams: error getting device " 1469 "capabilities page\n"); 1470 xpt_release_ccb(ccb); 1471 kfree(mode_buffer, M_TEMP); 1472 return(error); 1473 } 1474 } 1475 1476 xpt_release_ccb(ccb); 1477 1478 cap = (struct page_device_capabilities *) 1479 find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer); 1480 1481 bzero(softc->sc_movemask, sizeof(softc->sc_movemask)); 1482 bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask)); 1483 moves = &cap->move_from_mt; 1484 exchanges = &cap->exchange_with_mt; 1485 for (from = CHET_MT; from <= CHET_DT; ++from) { 1486 softc->sc_movemask[from] = moves[from]; 1487 softc->sc_exchangemask[from] = exchanges[from]; 1488 } 1489 1490 kfree(mode_buffer, M_TEMP); 1491 1492 return(error); 1493 } 1494 1495 void 1496 scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries, 1497 void (*cbfcnp)(struct cam_periph *, union ccb *), 1498 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1499 u_int32_t dst, int invert, u_int8_t sense_len, 1500 u_int32_t timeout) 1501 { 1502 struct scsi_move_medium *scsi_cmd; 1503 1504 scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes; 1505 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1506 1507 scsi_cmd->opcode = MOVE_MEDIUM; 1508 1509 scsi_ulto2b(tea, scsi_cmd->tea); 1510 scsi_ulto2b(src, scsi_cmd->src); 1511 scsi_ulto2b(dst, scsi_cmd->dst); 1512 1513 if (invert) 1514 scsi_cmd->invert |= MOVE_MEDIUM_INVERT; 1515 1516 cam_fill_csio(csio, 1517 retries, 1518 cbfcnp, 1519 /*flags*/ CAM_DIR_NONE, 1520 tag_action, 1521 /*data_ptr*/ NULL, 1522 /*dxfer_len*/ 0, 1523 sense_len, 1524 sizeof(*scsi_cmd), 1525 timeout); 1526 } 1527 1528 void 1529 scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries, 1530 void (*cbfcnp)(struct cam_periph *, union ccb *), 1531 u_int8_t tag_action, u_int32_t tea, u_int32_t src, 1532 u_int32_t dst1, u_int32_t dst2, int invert1, 1533 int invert2, u_int8_t sense_len, u_int32_t timeout) 1534 { 1535 struct scsi_exchange_medium *scsi_cmd; 1536 1537 scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes; 1538 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1539 1540 scsi_cmd->opcode = EXCHANGE_MEDIUM; 1541 1542 scsi_ulto2b(tea, scsi_cmd->tea); 1543 scsi_ulto2b(src, scsi_cmd->src); 1544 scsi_ulto2b(dst1, scsi_cmd->fdst); 1545 scsi_ulto2b(dst2, scsi_cmd->sdst); 1546 1547 if (invert1) 1548 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1; 1549 1550 if (invert2) 1551 scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2; 1552 1553 cam_fill_csio(csio, 1554 retries, 1555 cbfcnp, 1556 /*flags*/ CAM_DIR_NONE, 1557 tag_action, 1558 /*data_ptr*/ NULL, 1559 /*dxfer_len*/ 0, 1560 sense_len, 1561 sizeof(*scsi_cmd), 1562 timeout); 1563 } 1564 1565 void 1566 scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries, 1567 void (*cbfcnp)(struct cam_periph *, union ccb *), 1568 u_int8_t tag_action, u_int32_t tea, u_int32_t dst, 1569 int invert, u_int8_t sense_len, u_int32_t timeout) 1570 { 1571 struct scsi_position_to_element *scsi_cmd; 1572 1573 scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes; 1574 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1575 1576 scsi_cmd->opcode = POSITION_TO_ELEMENT; 1577 1578 scsi_ulto2b(tea, scsi_cmd->tea); 1579 scsi_ulto2b(dst, scsi_cmd->dst); 1580 1581 if (invert) 1582 scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT; 1583 1584 cam_fill_csio(csio, 1585 retries, 1586 cbfcnp, 1587 /*flags*/ CAM_DIR_NONE, 1588 tag_action, 1589 /*data_ptr*/ NULL, 1590 /*dxfer_len*/ 0, 1591 sense_len, 1592 sizeof(*scsi_cmd), 1593 timeout); 1594 } 1595 1596 void 1597 scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1598 void (*cbfcnp)(struct cam_periph *, union ccb *), 1599 u_int8_t tag_action, int voltag, u_int32_t sea, 1600 u_int32_t count, u_int8_t *data_ptr, 1601 u_int32_t dxfer_len, u_int8_t sense_len, 1602 u_int32_t timeout) 1603 { 1604 struct scsi_read_element_status *scsi_cmd; 1605 1606 scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes; 1607 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1608 1609 scsi_cmd->opcode = READ_ELEMENT_STATUS; 1610 1611 scsi_ulto2b(sea, scsi_cmd->sea); 1612 scsi_ulto2b(count, scsi_cmd->count); 1613 scsi_ulto3b(dxfer_len, scsi_cmd->len); 1614 1615 if (voltag) 1616 scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG; 1617 1618 cam_fill_csio(csio, 1619 retries, 1620 cbfcnp, 1621 /*flags*/ CAM_DIR_IN, 1622 tag_action, 1623 data_ptr, 1624 dxfer_len, 1625 sense_len, 1626 sizeof(*scsi_cmd), 1627 timeout); 1628 } 1629 1630 void 1631 scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries, 1632 void (*cbfcnp)(struct cam_periph *, union ccb *), 1633 u_int8_t tag_action, u_int8_t sense_len, 1634 u_int32_t timeout) 1635 { 1636 struct scsi_initialize_element_status *scsi_cmd; 1637 1638 scsi_cmd = (struct scsi_initialize_element_status *) 1639 &csio->cdb_io.cdb_bytes; 1640 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1641 1642 scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS; 1643 1644 cam_fill_csio(csio, 1645 retries, 1646 cbfcnp, 1647 /*flags*/ CAM_DIR_NONE, 1648 tag_action, 1649 /* data_ptr */ NULL, 1650 /* dxfer_len */ 0, 1651 sense_len, 1652 sizeof(*scsi_cmd), 1653 timeout); 1654 } 1655 1656 void 1657 scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries, 1658 void (*cbfcnp)(struct cam_periph *, union ccb *), 1659 u_int8_t tag_action, 1660 u_int16_t element_address, 1661 u_int8_t send_action_code, 1662 struct scsi_send_volume_tag_parameters *parameters, 1663 u_int8_t sense_len, u_int32_t timeout) 1664 { 1665 struct scsi_send_volume_tag *scsi_cmd; 1666 1667 scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes; 1668 bzero(scsi_cmd, sizeof(*scsi_cmd)); 1669 1670 scsi_cmd->opcode = SEND_VOLUME_TAG; 1671 scsi_ulto2b(element_address, scsi_cmd->ea); 1672 scsi_cmd->sac = send_action_code; 1673 scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll); 1674 1675 cam_fill_csio(csio, 1676 retries, 1677 cbfcnp, 1678 /*flags*/ CAM_DIR_OUT, 1679 tag_action, 1680 /* data_ptr */ (u_int8_t *) parameters, 1681 sizeof(*parameters), 1682 sense_len, 1683 sizeof(*scsi_cmd), 1684 timeout); 1685 } 1686