1 /*- 2 * Copyright (c) 2009 Alexander Motin <mav@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_ada.h" 31 32 #include <sys/param.h> 33 34 #ifdef _KERNEL 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/bio.h> 38 #include <sys/sysctl.h> 39 #include <sys/taskqueue.h> 40 #include <sys/lock.h> 41 #include <sys/mutex.h> 42 #include <sys/conf.h> 43 #include <sys/devicestat.h> 44 #include <sys/eventhandler.h> 45 #include <sys/malloc.h> 46 #include <sys/cons.h> 47 #include <sys/reboot.h> 48 #include <geom/geom_disk.h> 49 #endif /* _KERNEL */ 50 51 #ifndef _KERNEL 52 #include <stdio.h> 53 #include <string.h> 54 #endif /* _KERNEL */ 55 56 #include <cam/cam.h> 57 #include <cam/cam_ccb.h> 58 #include <cam/cam_periph.h> 59 #include <cam/cam_xpt_periph.h> 60 #include <cam/cam_sim.h> 61 62 #include <cam/ata/ata_all.h> 63 64 #include <machine/md_var.h> /* geometry translation */ 65 66 #ifdef _KERNEL 67 68 #define ATA_MAX_28BIT_LBA 268435455UL 69 70 typedef enum { 71 ADA_STATE_WCACHE, 72 ADA_STATE_NORMAL 73 } ada_state; 74 75 typedef enum { 76 ADA_FLAG_PACK_INVALID = 0x001, 77 ADA_FLAG_CAN_48BIT = 0x002, 78 ADA_FLAG_CAN_FLUSHCACHE = 0x004, 79 ADA_FLAG_CAN_NCQ = 0x008, 80 ADA_FLAG_CAN_DMA = 0x010, 81 ADA_FLAG_NEED_OTAG = 0x020, 82 ADA_FLAG_WENT_IDLE = 0x040, 83 ADA_FLAG_CAN_TRIM = 0x080, 84 ADA_FLAG_OPEN = 0x100, 85 ADA_FLAG_SCTX_INIT = 0x200, 86 ADA_FLAG_CAN_CFA = 0x400, 87 ADA_FLAG_CAN_POWERMGT = 0x800 88 } ada_flags; 89 90 typedef enum { 91 ADA_Q_NONE = 0x00 92 } ada_quirks; 93 94 typedef enum { 95 ADA_CCB_WCACHE = 0x01, 96 ADA_CCB_BUFFER_IO = 0x03, 97 ADA_CCB_WAITING = 0x04, 98 ADA_CCB_DUMP = 0x05, 99 ADA_CCB_TRIM = 0x06, 100 ADA_CCB_TYPE_MASK = 0x0F, 101 } ada_ccb_state; 102 103 /* Offsets into our private area for storing information */ 104 #define ccb_state ppriv_field0 105 #define ccb_bp ppriv_ptr1 106 107 struct disk_params { 108 u_int8_t heads; 109 u_int8_t secs_per_track; 110 u_int32_t cylinders; 111 u_int32_t secsize; /* Number of bytes/logical sector */ 112 u_int64_t sectors; /* Total number sectors */ 113 }; 114 115 #define TRIM_MAX_BLOCKS 4 116 #define TRIM_MAX_RANGES TRIM_MAX_BLOCKS * 64 117 struct trim_request { 118 uint8_t data[TRIM_MAX_RANGES * 8]; 119 struct bio *bps[TRIM_MAX_RANGES]; 120 }; 121 122 struct ada_softc { 123 struct bio_queue_head bio_queue; 124 struct bio_queue_head trim_queue; 125 ada_state state; 126 ada_flags flags; 127 ada_quirks quirks; 128 int ordered_tag_count; 129 int outstanding_cmds; 130 int trim_max_ranges; 131 int trim_running; 132 int write_cache; 133 #ifdef ADA_TEST_FAILURE 134 int force_read_error; 135 int force_write_error; 136 int periodic_read_error; 137 int periodic_read_count; 138 #endif 139 struct disk_params params; 140 struct disk *disk; 141 struct task sysctl_task; 142 struct sysctl_ctx_list sysctl_ctx; 143 struct sysctl_oid *sysctl_tree; 144 struct callout sendordered_c; 145 struct trim_request trim_req; 146 }; 147 148 struct ada_quirk_entry { 149 struct scsi_inquiry_pattern inq_pat; 150 ada_quirks quirks; 151 }; 152 153 static struct ada_quirk_entry ada_quirk_table[] = 154 { 155 { 156 /* Default */ 157 { 158 T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED, 159 /*vendor*/"*", /*product*/"*", /*revision*/"*" 160 }, 161 /*quirks*/0 162 }, 163 }; 164 165 static disk_strategy_t adastrategy; 166 static dumper_t adadump; 167 static periph_init_t adainit; 168 static void adaasync(void *callback_arg, u_int32_t code, 169 struct cam_path *path, void *arg); 170 static void adasysctlinit(void *context, int pending); 171 static periph_ctor_t adaregister; 172 static periph_dtor_t adacleanup; 173 static periph_start_t adastart; 174 static periph_oninv_t adaoninvalidate; 175 static void adadone(struct cam_periph *periph, 176 union ccb *done_ccb); 177 static int adaerror(union ccb *ccb, u_int32_t cam_flags, 178 u_int32_t sense_flags); 179 static void adagetparams(struct cam_periph *periph, 180 struct ccb_getdev *cgd); 181 static timeout_t adasendorderedtag; 182 static void adashutdown(void *arg, int howto); 183 static void adasuspend(void *arg); 184 static void adaresume(void *arg); 185 186 #ifndef ADA_DEFAULT_TIMEOUT 187 #define ADA_DEFAULT_TIMEOUT 30 /* Timeout in seconds */ 188 #endif 189 190 #ifndef ADA_DEFAULT_RETRY 191 #define ADA_DEFAULT_RETRY 4 192 #endif 193 194 #ifndef ADA_DEFAULT_SEND_ORDERED 195 #define ADA_DEFAULT_SEND_ORDERED 1 196 #endif 197 198 #ifndef ADA_DEFAULT_SPINDOWN_SHUTDOWN 199 #define ADA_DEFAULT_SPINDOWN_SHUTDOWN 1 200 #endif 201 202 #ifndef ADA_DEFAULT_SPINDOWN_SUSPEND 203 #define ADA_DEFAULT_SPINDOWN_SUSPEND 1 204 #endif 205 206 #ifndef ADA_DEFAULT_WRITE_CACHE 207 #define ADA_DEFAULT_WRITE_CACHE 1 208 #endif 209 210 /* 211 * Most platforms map firmware geometry to actual, but some don't. If 212 * not overridden, default to nothing. 213 */ 214 #ifndef ata_disk_firmware_geom_adjust 215 #define ata_disk_firmware_geom_adjust(disk) 216 #endif 217 218 static int ada_retry_count = ADA_DEFAULT_RETRY; 219 static int ada_default_timeout = ADA_DEFAULT_TIMEOUT; 220 static int ada_send_ordered = ADA_DEFAULT_SEND_ORDERED; 221 static int ada_spindown_shutdown = ADA_DEFAULT_SPINDOWN_SHUTDOWN; 222 static int ada_spindown_suspend = ADA_DEFAULT_SPINDOWN_SUSPEND; 223 static int ada_write_cache = ADA_DEFAULT_WRITE_CACHE; 224 225 SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD, 0, 226 "CAM Direct Access Disk driver"); 227 SYSCTL_INT(_kern_cam_ada, OID_AUTO, retry_count, CTLFLAG_RW, 228 &ada_retry_count, 0, "Normal I/O retry count"); 229 TUNABLE_INT("kern.cam.ada.retry_count", &ada_retry_count); 230 SYSCTL_INT(_kern_cam_ada, OID_AUTO, default_timeout, CTLFLAG_RW, 231 &ada_default_timeout, 0, "Normal I/O timeout (in seconds)"); 232 TUNABLE_INT("kern.cam.ada.default_timeout", &ada_default_timeout); 233 SYSCTL_INT(_kern_cam_ada, OID_AUTO, ada_send_ordered, CTLFLAG_RW, 234 &ada_send_ordered, 0, "Send Ordered Tags"); 235 TUNABLE_INT("kern.cam.ada.ada_send_ordered", &ada_send_ordered); 236 SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_shutdown, CTLFLAG_RW, 237 &ada_spindown_shutdown, 0, "Spin down upon shutdown"); 238 TUNABLE_INT("kern.cam.ada.spindown_shutdown", &ada_spindown_shutdown); 239 SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_suspend, CTLFLAG_RW, 240 &ada_spindown_suspend, 0, "Spin down upon suspend"); 241 TUNABLE_INT("kern.cam.ada.spindown_suspend", &ada_spindown_suspend); 242 SYSCTL_INT(_kern_cam_ada, OID_AUTO, write_cache, CTLFLAG_RW, 243 &ada_write_cache, 0, "Enable disk write cache"); 244 TUNABLE_INT("kern.cam.ada.write_cache", &ada_write_cache); 245 246 /* 247 * ADA_ORDEREDTAG_INTERVAL determines how often, relative 248 * to the default timeout, we check to see whether an ordered 249 * tagged transaction is appropriate to prevent simple tag 250 * starvation. Since we'd like to ensure that there is at least 251 * 1/2 of the timeout length left for a starved transaction to 252 * complete after we've sent an ordered tag, we must poll at least 253 * four times in every timeout period. This takes care of the worst 254 * case where a starved transaction starts during an interval that 255 * meets the requirement "don't send an ordered tag" test so it takes 256 * us two intervals to determine that a tag must be sent. 257 */ 258 #ifndef ADA_ORDEREDTAG_INTERVAL 259 #define ADA_ORDEREDTAG_INTERVAL 4 260 #endif 261 262 static struct periph_driver adadriver = 263 { 264 adainit, "ada", 265 TAILQ_HEAD_INITIALIZER(adadriver.units), /* generation */ 0 266 }; 267 268 PERIPHDRIVER_DECLARE(ada, adadriver); 269 270 MALLOC_DEFINE(M_ATADA, "ata_da", "ata_da buffers"); 271 272 static int 273 adaopen(struct disk *dp) 274 { 275 struct cam_periph *periph; 276 struct ada_softc *softc; 277 int unit; 278 int error; 279 280 periph = (struct cam_periph *)dp->d_drv1; 281 if (periph == NULL) { 282 return (ENXIO); 283 } 284 285 if (cam_periph_acquire(periph) != CAM_REQ_CMP) { 286 return(ENXIO); 287 } 288 289 cam_periph_lock(periph); 290 if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) { 291 cam_periph_unlock(periph); 292 cam_periph_release(periph); 293 return (error); 294 } 295 296 unit = periph->unit_number; 297 softc = (struct ada_softc *)periph->softc; 298 softc->flags |= ADA_FLAG_OPEN; 299 300 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, 301 ("adaopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit, 302 unit)); 303 304 if ((softc->flags & ADA_FLAG_PACK_INVALID) != 0) { 305 /* Invalidate our pack information. */ 306 softc->flags &= ~ADA_FLAG_PACK_INVALID; 307 } 308 309 cam_periph_unhold(periph); 310 cam_periph_unlock(periph); 311 return (0); 312 } 313 314 static int 315 adaclose(struct disk *dp) 316 { 317 struct cam_periph *periph; 318 struct ada_softc *softc; 319 union ccb *ccb; 320 int error; 321 322 periph = (struct cam_periph *)dp->d_drv1; 323 if (periph == NULL) 324 return (ENXIO); 325 326 cam_periph_lock(periph); 327 if ((error = cam_periph_hold(periph, PRIBIO)) != 0) { 328 cam_periph_unlock(periph); 329 cam_periph_release(periph); 330 return (error); 331 } 332 333 softc = (struct ada_softc *)periph->softc; 334 /* We only sync the cache if the drive is capable of it. */ 335 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) { 336 337 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL); 338 cam_fill_ataio(&ccb->ataio, 339 1, 340 adadone, 341 CAM_DIR_NONE, 342 0, 343 NULL, 344 0, 345 ada_default_timeout*1000); 346 347 if (softc->flags & ADA_FLAG_CAN_48BIT) 348 ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0); 349 else 350 ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0); 351 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0, 352 /*sense_flags*/0, softc->disk->d_devstat); 353 354 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 355 xpt_print(periph->path, "Synchronize cache failed\n"); 356 357 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 358 cam_release_devq(ccb->ccb_h.path, 359 /*relsim_flags*/0, 360 /*reduction*/0, 361 /*timeout*/0, 362 /*getcount_only*/0); 363 xpt_release_ccb(ccb); 364 } 365 366 softc->flags &= ~ADA_FLAG_OPEN; 367 cam_periph_unhold(periph); 368 cam_periph_unlock(periph); 369 cam_periph_release(periph); 370 return (0); 371 } 372 373 static void 374 adaschedule(struct cam_periph *periph) 375 { 376 struct ada_softc *softc = (struct ada_softc *)periph->softc; 377 378 if (bioq_first(&softc->bio_queue) || 379 (!softc->trim_running && bioq_first(&softc->trim_queue))) { 380 /* Have more work to do, so ensure we stay scheduled */ 381 xpt_schedule(periph, CAM_PRIORITY_NORMAL); 382 } 383 } 384 385 /* 386 * Actually translate the requested transfer into one the physical driver 387 * can understand. The transfer is described by a buf and will include 388 * only one physical transfer. 389 */ 390 static void 391 adastrategy(struct bio *bp) 392 { 393 struct cam_periph *periph; 394 struct ada_softc *softc; 395 396 periph = (struct cam_periph *)bp->bio_disk->d_drv1; 397 if (periph == NULL) { 398 biofinish(bp, NULL, ENXIO); 399 return; 400 } 401 softc = (struct ada_softc *)periph->softc; 402 403 cam_periph_lock(periph); 404 405 /* 406 * If the device has been made invalid, error out 407 */ 408 if ((softc->flags & ADA_FLAG_PACK_INVALID)) { 409 cam_periph_unlock(periph); 410 biofinish(bp, NULL, ENXIO); 411 return; 412 } 413 414 /* 415 * Place it in the queue of disk activities for this disk 416 */ 417 if (bp->bio_cmd == BIO_DELETE && 418 (softc->flags & ADA_FLAG_CAN_TRIM)) 419 bioq_disksort(&softc->trim_queue, bp); 420 else 421 bioq_disksort(&softc->bio_queue, bp); 422 423 /* 424 * Schedule ourselves for performing the work. 425 */ 426 adaschedule(periph); 427 cam_periph_unlock(periph); 428 429 return; 430 } 431 432 static int 433 adadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length) 434 { 435 struct cam_periph *periph; 436 struct ada_softc *softc; 437 u_int secsize; 438 union ccb ccb; 439 struct disk *dp; 440 uint64_t lba; 441 uint16_t count; 442 443 dp = arg; 444 periph = dp->d_drv1; 445 if (periph == NULL) 446 return (ENXIO); 447 softc = (struct ada_softc *)periph->softc; 448 cam_periph_lock(periph); 449 secsize = softc->params.secsize; 450 lba = offset / secsize; 451 count = length / secsize; 452 453 if ((softc->flags & ADA_FLAG_PACK_INVALID) != 0) { 454 cam_periph_unlock(periph); 455 return (ENXIO); 456 } 457 458 if (length > 0) { 459 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 460 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 461 cam_fill_ataio(&ccb.ataio, 462 0, 463 adadone, 464 CAM_DIR_OUT, 465 0, 466 (u_int8_t *) virtual, 467 length, 468 ada_default_timeout*1000); 469 if ((softc->flags & ADA_FLAG_CAN_48BIT) && 470 (lba + count >= ATA_MAX_28BIT_LBA || 471 count >= 256)) { 472 ata_48bit_cmd(&ccb.ataio, ATA_WRITE_DMA48, 473 0, lba, count); 474 } else { 475 ata_28bit_cmd(&ccb.ataio, ATA_WRITE_DMA, 476 0, lba, count); 477 } 478 xpt_polled_action(&ccb); 479 480 if ((ccb.ataio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 481 printf("Aborting dump due to I/O error.\n"); 482 cam_periph_unlock(periph); 483 return(EIO); 484 } 485 cam_periph_unlock(periph); 486 return(0); 487 } 488 489 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) { 490 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 491 492 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 493 cam_fill_ataio(&ccb.ataio, 494 1, 495 adadone, 496 CAM_DIR_NONE, 497 0, 498 NULL, 499 0, 500 ada_default_timeout*1000); 501 502 if (softc->flags & ADA_FLAG_CAN_48BIT) 503 ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0); 504 else 505 ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0); 506 xpt_polled_action(&ccb); 507 508 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 509 xpt_print(periph->path, "Synchronize cache failed\n"); 510 511 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 512 cam_release_devq(ccb.ccb_h.path, 513 /*relsim_flags*/0, 514 /*reduction*/0, 515 /*timeout*/0, 516 /*getcount_only*/0); 517 } 518 cam_periph_unlock(periph); 519 return (0); 520 } 521 522 static void 523 adainit(void) 524 { 525 cam_status status; 526 527 /* 528 * Install a global async callback. This callback will 529 * receive async callbacks like "new device found". 530 */ 531 status = xpt_register_async(AC_FOUND_DEVICE, adaasync, NULL, NULL); 532 533 if (status != CAM_REQ_CMP) { 534 printf("ada: Failed to attach master async callback " 535 "due to status 0x%x!\n", status); 536 } else if (ada_send_ordered) { 537 538 /* Register our event handlers */ 539 if ((EVENTHANDLER_REGISTER(power_suspend, adasuspend, 540 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 541 printf("adainit: power event registration failed!\n"); 542 if ((EVENTHANDLER_REGISTER(power_resume, adaresume, 543 NULL, EVENTHANDLER_PRI_LAST)) == NULL) 544 printf("adainit: power event registration failed!\n"); 545 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, adashutdown, 546 NULL, SHUTDOWN_PRI_DEFAULT)) == NULL) 547 printf("adainit: shutdown event registration failed!\n"); 548 } 549 } 550 551 static void 552 adaoninvalidate(struct cam_periph *periph) 553 { 554 struct ada_softc *softc; 555 556 softc = (struct ada_softc *)periph->softc; 557 558 /* 559 * De-register any async callbacks. 560 */ 561 xpt_register_async(0, adaasync, periph, periph->path); 562 563 softc->flags |= ADA_FLAG_PACK_INVALID; 564 565 /* 566 * Return all queued I/O with ENXIO. 567 * XXX Handle any transactions queued to the card 568 * with XPT_ABORT_CCB. 569 */ 570 bioq_flush(&softc->bio_queue, NULL, ENXIO); 571 bioq_flush(&softc->trim_queue, NULL, ENXIO); 572 573 disk_gone(softc->disk); 574 xpt_print(periph->path, "lost device\n"); 575 } 576 577 static void 578 adacleanup(struct cam_periph *periph) 579 { 580 struct ada_softc *softc; 581 582 softc = (struct ada_softc *)periph->softc; 583 584 xpt_print(periph->path, "removing device entry\n"); 585 cam_periph_unlock(periph); 586 587 /* 588 * If we can't free the sysctl tree, oh well... 589 */ 590 if ((softc->flags & ADA_FLAG_SCTX_INIT) != 0 591 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) { 592 xpt_print(periph->path, "can't remove sysctl context\n"); 593 } 594 595 disk_destroy(softc->disk); 596 callout_drain(&softc->sendordered_c); 597 free(softc, M_DEVBUF); 598 cam_periph_lock(periph); 599 } 600 601 static void 602 adaasync(void *callback_arg, u_int32_t code, 603 struct cam_path *path, void *arg) 604 { 605 struct cam_periph *periph; 606 struct ada_softc *softc; 607 608 periph = (struct cam_periph *)callback_arg; 609 switch (code) { 610 case AC_FOUND_DEVICE: 611 { 612 struct ccb_getdev *cgd; 613 cam_status status; 614 615 cgd = (struct ccb_getdev *)arg; 616 if (cgd == NULL) 617 break; 618 619 if (cgd->protocol != PROTO_ATA) 620 break; 621 622 /* 623 * Allocate a peripheral instance for 624 * this device and start the probe 625 * process. 626 */ 627 status = cam_periph_alloc(adaregister, adaoninvalidate, 628 adacleanup, adastart, 629 "ada", CAM_PERIPH_BIO, 630 cgd->ccb_h.path, adaasync, 631 AC_FOUND_DEVICE, cgd); 632 633 if (status != CAM_REQ_CMP 634 && status != CAM_REQ_INPROG) 635 printf("adaasync: Unable to attach to new device " 636 "due to status 0x%x\n", status); 637 break; 638 } 639 case AC_SENT_BDR: 640 case AC_BUS_RESET: 641 { 642 struct ccb_getdev cgd; 643 644 softc = (struct ada_softc *)periph->softc; 645 cam_periph_async(periph, code, path, arg); 646 if (ada_write_cache < 0 && softc->write_cache < 0) 647 break; 648 if (softc->state != ADA_STATE_NORMAL) 649 break; 650 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 651 cgd.ccb_h.func_code = XPT_GDEV_TYPE; 652 xpt_action((union ccb *)&cgd); 653 if ((cgd.ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) == 0) 654 break; 655 softc->state = ADA_STATE_WCACHE; 656 cam_periph_acquire(periph); 657 cam_freeze_devq_arg(periph->path, 658 RELSIM_RELEASE_RUNLEVEL, CAM_RL_DEV + 1); 659 xpt_schedule(periph, CAM_PRIORITY_DEV); 660 } 661 default: 662 cam_periph_async(periph, code, path, arg); 663 break; 664 } 665 } 666 667 static void 668 adasysctlinit(void *context, int pending) 669 { 670 struct cam_periph *periph; 671 struct ada_softc *softc; 672 char tmpstr[80], tmpstr2[80]; 673 674 periph = (struct cam_periph *)context; 675 676 /* periph was held for us when this task was enqueued */ 677 if (periph->flags & CAM_PERIPH_INVALID) { 678 cam_periph_release(periph); 679 return; 680 } 681 682 softc = (struct ada_softc *)periph->softc; 683 snprintf(tmpstr, sizeof(tmpstr), "CAM ADA unit %d", periph->unit_number); 684 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number); 685 686 sysctl_ctx_init(&softc->sysctl_ctx); 687 softc->flags |= ADA_FLAG_SCTX_INIT; 688 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx, 689 SYSCTL_STATIC_CHILDREN(_kern_cam_ada), OID_AUTO, tmpstr2, 690 CTLFLAG_RD, 0, tmpstr); 691 if (softc->sysctl_tree == NULL) { 692 printf("adasysctlinit: unable to allocate sysctl tree\n"); 693 cam_periph_release(periph); 694 return; 695 } 696 697 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 698 OID_AUTO, "write_cache", CTLFLAG_RW | CTLFLAG_MPSAFE, 699 &softc->write_cache, 0, "Enable disk write cache."); 700 #ifdef ADA_TEST_FAILURE 701 /* 702 * Add a 'door bell' sysctl which allows one to set it from userland 703 * and cause something bad to happen. For the moment, we only allow 704 * whacking the next read or write. 705 */ 706 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 707 OID_AUTO, "force_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 708 &softc->force_read_error, 0, 709 "Force a read error for the next N reads."); 710 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 711 OID_AUTO, "force_write_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 712 &softc->force_write_error, 0, 713 "Force a write error for the next N writes."); 714 SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree), 715 OID_AUTO, "periodic_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE, 716 &softc->periodic_read_error, 0, 717 "Force a read error every N reads (don't set too low)."); 718 #endif 719 cam_periph_release(periph); 720 } 721 722 static cam_status 723 adaregister(struct cam_periph *periph, void *arg) 724 { 725 struct ada_softc *softc; 726 struct ccb_pathinq cpi; 727 struct ccb_getdev *cgd; 728 char announce_buf[80]; 729 struct disk_params *dp; 730 caddr_t match; 731 u_int maxio; 732 733 cgd = (struct ccb_getdev *)arg; 734 if (periph == NULL) { 735 printf("adaregister: periph was NULL!!\n"); 736 return(CAM_REQ_CMP_ERR); 737 } 738 739 if (cgd == NULL) { 740 printf("adaregister: no getdev CCB, can't register device\n"); 741 return(CAM_REQ_CMP_ERR); 742 } 743 744 softc = (struct ada_softc *)malloc(sizeof(*softc), M_DEVBUF, 745 M_NOWAIT|M_ZERO); 746 747 if (softc == NULL) { 748 printf("adaregister: Unable to probe new device. " 749 "Unable to allocate softc\n"); 750 return(CAM_REQ_CMP_ERR); 751 } 752 753 bioq_init(&softc->bio_queue); 754 bioq_init(&softc->trim_queue); 755 756 if (cgd->ident_data.capabilities1 & ATA_SUPPORT_DMA) 757 softc->flags |= ADA_FLAG_CAN_DMA; 758 if (cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) 759 softc->flags |= ADA_FLAG_CAN_48BIT; 760 if (cgd->ident_data.support.command2 & ATA_SUPPORT_FLUSHCACHE) 761 softc->flags |= ADA_FLAG_CAN_FLUSHCACHE; 762 if (cgd->ident_data.support.command1 & ATA_SUPPORT_POWERMGT) 763 softc->flags |= ADA_FLAG_CAN_POWERMGT; 764 if (cgd->ident_data.satacapabilities & ATA_SUPPORT_NCQ && 765 cgd->inq_flags & SID_CmdQue) 766 softc->flags |= ADA_FLAG_CAN_NCQ; 767 if (cgd->ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) { 768 softc->flags |= ADA_FLAG_CAN_TRIM; 769 softc->trim_max_ranges = TRIM_MAX_RANGES; 770 if (cgd->ident_data.max_dsm_blocks != 0) { 771 softc->trim_max_ranges = 772 min(cgd->ident_data.max_dsm_blocks * 64, 773 softc->trim_max_ranges); 774 } 775 } 776 if (cgd->ident_data.support.command2 & ATA_SUPPORT_CFA) 777 softc->flags |= ADA_FLAG_CAN_CFA; 778 779 periph->softc = softc; 780 781 /* 782 * See if this device has any quirks. 783 */ 784 match = cam_quirkmatch((caddr_t)&cgd->ident_data, 785 (caddr_t)ada_quirk_table, 786 sizeof(ada_quirk_table)/sizeof(*ada_quirk_table), 787 sizeof(*ada_quirk_table), ata_identify_match); 788 if (match != NULL) 789 softc->quirks = ((struct ada_quirk_entry *)match)->quirks; 790 else 791 softc->quirks = ADA_Q_NONE; 792 793 bzero(&cpi, sizeof(cpi)); 794 xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE); 795 cpi.ccb_h.func_code = XPT_PATH_INQ; 796 xpt_action((union ccb *)&cpi); 797 798 TASK_INIT(&softc->sysctl_task, 0, adasysctlinit, periph); 799 800 /* 801 * Register this media as a disk 802 */ 803 (void)cam_periph_hold(periph, PRIBIO); 804 mtx_unlock(periph->sim->mtx); 805 softc->write_cache = -1; 806 snprintf(announce_buf, sizeof(announce_buf), 807 "kern.cam.ada.%d.write_cache", periph->unit_number); 808 TUNABLE_INT_FETCH(announce_buf, &softc->write_cache); 809 adagetparams(periph, cgd); 810 softc->disk = disk_alloc(); 811 softc->disk->d_devstat = devstat_new_entry(periph->periph_name, 812 periph->unit_number, softc->params.secsize, 813 DEVSTAT_ALL_SUPPORTED, 814 DEVSTAT_TYPE_DIRECT | 815 XPORT_DEVSTAT_TYPE(cpi.transport), 816 DEVSTAT_PRIORITY_DISK); 817 softc->disk->d_open = adaopen; 818 softc->disk->d_close = adaclose; 819 softc->disk->d_strategy = adastrategy; 820 softc->disk->d_dump = adadump; 821 softc->disk->d_name = "ada"; 822 softc->disk->d_drv1 = periph; 823 maxio = cpi.maxio; /* Honor max I/O size of SIM */ 824 if (maxio == 0) 825 maxio = DFLTPHYS; /* traditional default */ 826 else if (maxio > MAXPHYS) 827 maxio = MAXPHYS; /* for safety */ 828 if (softc->flags & ADA_FLAG_CAN_48BIT) 829 maxio = min(maxio, 65536 * softc->params.secsize); 830 else /* 28bit ATA command limit */ 831 maxio = min(maxio, 256 * softc->params.secsize); 832 softc->disk->d_maxsize = maxio; 833 softc->disk->d_unit = periph->unit_number; 834 softc->disk->d_flags = 0; 835 if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) 836 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE; 837 if ((softc->flags & ADA_FLAG_CAN_TRIM) || 838 ((softc->flags & ADA_FLAG_CAN_CFA) && 839 !(softc->flags & ADA_FLAG_CAN_48BIT))) 840 softc->disk->d_flags |= DISKFLAG_CANDELETE; 841 strlcpy(softc->disk->d_ident, cgd->serial_num, 842 MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1)); 843 strlcpy(softc->disk->d_descr, cgd->ident_data.model, 844 MIN(sizeof(softc->disk->d_descr), sizeof(cgd->ident_data.model))); 845 softc->disk->d_hba_vendor = cpi.hba_vendor; 846 softc->disk->d_hba_device = cpi.hba_device; 847 softc->disk->d_hba_subvendor = cpi.hba_subvendor; 848 softc->disk->d_hba_subdevice = cpi.hba_subdevice; 849 850 softc->disk->d_sectorsize = softc->params.secsize; 851 softc->disk->d_mediasize = (off_t)softc->params.sectors * 852 softc->params.secsize; 853 if (ata_physical_sector_size(&cgd->ident_data) != 854 softc->params.secsize) { 855 softc->disk->d_stripesize = 856 ata_physical_sector_size(&cgd->ident_data); 857 softc->disk->d_stripeoffset = (softc->disk->d_stripesize - 858 ata_logical_sector_offset(&cgd->ident_data)) % 859 softc->disk->d_stripesize; 860 } 861 softc->disk->d_fwsectors = softc->params.secs_per_track; 862 softc->disk->d_fwheads = softc->params.heads; 863 ata_disk_firmware_geom_adjust(softc->disk); 864 865 disk_create(softc->disk, DISK_VERSION); 866 mtx_lock(periph->sim->mtx); 867 cam_periph_unhold(periph); 868 869 dp = &softc->params; 870 snprintf(announce_buf, sizeof(announce_buf), 871 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)", 872 (uintmax_t)(((uintmax_t)dp->secsize * 873 dp->sectors) / (1024*1024)), 874 (uintmax_t)dp->sectors, 875 dp->secsize, dp->heads, 876 dp->secs_per_track, dp->cylinders); 877 xpt_announce_periph(periph, announce_buf); 878 879 /* 880 * Create our sysctl variables, now that we know 881 * we have successfully attached. 882 */ 883 cam_periph_acquire(periph); 884 taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task); 885 886 /* 887 * Add async callbacks for bus reset and 888 * bus device reset calls. I don't bother 889 * checking if this fails as, in most cases, 890 * the system will function just fine without 891 * them and the only alternative would be to 892 * not attach the device on failure. 893 */ 894 xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE, 895 adaasync, periph, periph->path); 896 897 /* 898 * Schedule a periodic event to occasionally send an 899 * ordered tag to a device. 900 */ 901 callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0); 902 callout_reset(&softc->sendordered_c, 903 (ADA_DEFAULT_TIMEOUT * hz) / ADA_ORDEREDTAG_INTERVAL, 904 adasendorderedtag, softc); 905 906 if ((ada_write_cache >= 0 || softc->write_cache >= 0) && 907 cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) { 908 softc->state = ADA_STATE_WCACHE; 909 cam_periph_acquire(periph); 910 cam_freeze_devq_arg(periph->path, 911 RELSIM_RELEASE_RUNLEVEL, CAM_RL_DEV + 1); 912 xpt_schedule(periph, CAM_PRIORITY_DEV); 913 } else 914 softc->state = ADA_STATE_NORMAL; 915 916 return(CAM_REQ_CMP); 917 } 918 919 static void 920 adastart(struct cam_periph *periph, union ccb *start_ccb) 921 { 922 struct ada_softc *softc = (struct ada_softc *)periph->softc; 923 struct ccb_ataio *ataio = &start_ccb->ataio; 924 925 switch (softc->state) { 926 case ADA_STATE_NORMAL: 927 { 928 struct bio *bp; 929 u_int8_t tag_code; 930 931 /* Execute immediate CCB if waiting. */ 932 if (periph->immediate_priority <= periph->pinfo.priority) { 933 CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE, 934 ("queuing for immediate ccb\n")); 935 start_ccb->ccb_h.ccb_state = ADA_CCB_WAITING; 936 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h, 937 periph_links.sle); 938 periph->immediate_priority = CAM_PRIORITY_NONE; 939 wakeup(&periph->ccb_list); 940 /* Have more work to do, so ensure we stay scheduled */ 941 adaschedule(periph); 942 break; 943 } 944 /* Run TRIM if not running yet. */ 945 if (!softc->trim_running && 946 (bp = bioq_first(&softc->trim_queue)) != 0) { 947 struct trim_request *req = &softc->trim_req; 948 struct bio *bp1; 949 int bps = 0, ranges = 0; 950 951 softc->trim_running = 1; 952 bzero(req, sizeof(*req)); 953 bp1 = bp; 954 do { 955 uint64_t lba = bp1->bio_pblkno; 956 int count = bp1->bio_bcount / 957 softc->params.secsize; 958 959 bioq_remove(&softc->trim_queue, bp1); 960 while (count > 0) { 961 int c = min(count, 0xffff); 962 int off = ranges * 8; 963 964 req->data[off + 0] = lba & 0xff; 965 req->data[off + 1] = (lba >> 8) & 0xff; 966 req->data[off + 2] = (lba >> 16) & 0xff; 967 req->data[off + 3] = (lba >> 24) & 0xff; 968 req->data[off + 4] = (lba >> 32) & 0xff; 969 req->data[off + 5] = (lba >> 40) & 0xff; 970 req->data[off + 6] = c & 0xff; 971 req->data[off + 7] = (c >> 8) & 0xff; 972 lba += c; 973 count -= c; 974 ranges++; 975 } 976 req->bps[bps++] = bp1; 977 bp1 = bioq_first(&softc->trim_queue); 978 if (bp1 == NULL || 979 bp1->bio_bcount / softc->params.secsize > 980 (softc->trim_max_ranges - ranges) * 0xffff) 981 break; 982 } while (1); 983 cam_fill_ataio(ataio, 984 ada_retry_count, 985 adadone, 986 CAM_DIR_OUT, 987 0, 988 req->data, 989 ((ranges + 63) / 64) * 512, 990 ada_default_timeout * 1000); 991 ata_48bit_cmd(ataio, ATA_DATA_SET_MANAGEMENT, 992 ATA_DSM_TRIM, 0, (ranges + 63) / 64); 993 start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM; 994 goto out; 995 } 996 /* Run regular command. */ 997 bp = bioq_first(&softc->bio_queue); 998 if (bp == NULL) { 999 xpt_release_ccb(start_ccb); 1000 break; 1001 } 1002 bioq_remove(&softc->bio_queue, bp); 1003 1004 if ((bp->bio_flags & BIO_ORDERED) != 0 1005 || (softc->flags & ADA_FLAG_NEED_OTAG) != 0) { 1006 softc->flags &= ~ADA_FLAG_NEED_OTAG; 1007 softc->ordered_tag_count++; 1008 tag_code = 0; 1009 } else { 1010 tag_code = 1; 1011 } 1012 switch (bp->bio_cmd) { 1013 case BIO_READ: 1014 case BIO_WRITE: 1015 { 1016 uint64_t lba = bp->bio_pblkno; 1017 uint16_t count = bp->bio_bcount / softc->params.secsize; 1018 #ifdef ADA_TEST_FAILURE 1019 int fail = 0; 1020 1021 /* 1022 * Support the failure ioctls. If the command is a 1023 * read, and there are pending forced read errors, or 1024 * if a write and pending write errors, then fail this 1025 * operation with EIO. This is useful for testing 1026 * purposes. Also, support having every Nth read fail. 1027 * 1028 * This is a rather blunt tool. 1029 */ 1030 if (bp->bio_cmd == BIO_READ) { 1031 if (softc->force_read_error) { 1032 softc->force_read_error--; 1033 fail = 1; 1034 } 1035 if (softc->periodic_read_error > 0) { 1036 if (++softc->periodic_read_count >= 1037 softc->periodic_read_error) { 1038 softc->periodic_read_count = 0; 1039 fail = 1; 1040 } 1041 } 1042 } else { 1043 if (softc->force_write_error) { 1044 softc->force_write_error--; 1045 fail = 1; 1046 } 1047 } 1048 if (fail) { 1049 bp->bio_error = EIO; 1050 bp->bio_flags |= BIO_ERROR; 1051 biodone(bp); 1052 xpt_release_ccb(start_ccb); 1053 adaschedule(periph); 1054 return; 1055 } 1056 #endif 1057 cam_fill_ataio(ataio, 1058 ada_retry_count, 1059 adadone, 1060 bp->bio_cmd == BIO_READ ? 1061 CAM_DIR_IN : CAM_DIR_OUT, 1062 tag_code, 1063 bp->bio_data, 1064 bp->bio_bcount, 1065 ada_default_timeout*1000); 1066 1067 if ((softc->flags & ADA_FLAG_CAN_NCQ) && tag_code) { 1068 if (bp->bio_cmd == BIO_READ) { 1069 ata_ncq_cmd(ataio, ATA_READ_FPDMA_QUEUED, 1070 lba, count); 1071 } else { 1072 ata_ncq_cmd(ataio, ATA_WRITE_FPDMA_QUEUED, 1073 lba, count); 1074 } 1075 } else if ((softc->flags & ADA_FLAG_CAN_48BIT) && 1076 (lba + count >= ATA_MAX_28BIT_LBA || 1077 count > 256)) { 1078 if (softc->flags & ADA_FLAG_CAN_DMA) { 1079 if (bp->bio_cmd == BIO_READ) { 1080 ata_48bit_cmd(ataio, ATA_READ_DMA48, 1081 0, lba, count); 1082 } else { 1083 ata_48bit_cmd(ataio, ATA_WRITE_DMA48, 1084 0, lba, count); 1085 } 1086 } else { 1087 if (bp->bio_cmd == BIO_READ) { 1088 ata_48bit_cmd(ataio, ATA_READ_MUL48, 1089 0, lba, count); 1090 } else { 1091 ata_48bit_cmd(ataio, ATA_WRITE_MUL48, 1092 0, lba, count); 1093 } 1094 } 1095 } else { 1096 if (count == 256) 1097 count = 0; 1098 if (softc->flags & ADA_FLAG_CAN_DMA) { 1099 if (bp->bio_cmd == BIO_READ) { 1100 ata_28bit_cmd(ataio, ATA_READ_DMA, 1101 0, lba, count); 1102 } else { 1103 ata_28bit_cmd(ataio, ATA_WRITE_DMA, 1104 0, lba, count); 1105 } 1106 } else { 1107 if (bp->bio_cmd == BIO_READ) { 1108 ata_28bit_cmd(ataio, ATA_READ_MUL, 1109 0, lba, count); 1110 } else { 1111 ata_28bit_cmd(ataio, ATA_WRITE_MUL, 1112 0, lba, count); 1113 } 1114 } 1115 } 1116 break; 1117 } 1118 case BIO_DELETE: 1119 { 1120 uint64_t lba = bp->bio_pblkno; 1121 uint16_t count = bp->bio_bcount / softc->params.secsize; 1122 1123 cam_fill_ataio(ataio, 1124 ada_retry_count, 1125 adadone, 1126 CAM_DIR_NONE, 1127 0, 1128 NULL, 1129 0, 1130 ada_default_timeout*1000); 1131 1132 if (count >= 256) 1133 count = 0; 1134 ata_28bit_cmd(ataio, ATA_CFA_ERASE, 0, lba, count); 1135 break; 1136 } 1137 case BIO_FLUSH: 1138 cam_fill_ataio(ataio, 1139 1, 1140 adadone, 1141 CAM_DIR_NONE, 1142 0, 1143 NULL, 1144 0, 1145 ada_default_timeout*1000); 1146 1147 if (softc->flags & ADA_FLAG_CAN_48BIT) 1148 ata_48bit_cmd(ataio, ATA_FLUSHCACHE48, 0, 0, 0); 1149 else 1150 ata_28bit_cmd(ataio, ATA_FLUSHCACHE, 0, 0, 0); 1151 break; 1152 } 1153 start_ccb->ccb_h.ccb_state = ADA_CCB_BUFFER_IO; 1154 out: 1155 start_ccb->ccb_h.ccb_bp = bp; 1156 softc->outstanding_cmds++; 1157 xpt_action(start_ccb); 1158 1159 /* May have more work to do, so ensure we stay scheduled */ 1160 adaschedule(periph); 1161 break; 1162 } 1163 case ADA_STATE_WCACHE: 1164 { 1165 cam_fill_ataio(ataio, 1166 1, 1167 adadone, 1168 CAM_DIR_NONE, 1169 0, 1170 NULL, 1171 0, 1172 ada_default_timeout*1000); 1173 1174 ata_28bit_cmd(ataio, ATA_SETFEATURES, (softc->write_cache > 0 || 1175 (softc->write_cache < 0 && ada_write_cache)) ? 1176 ATA_SF_ENAB_WCACHE : ATA_SF_DIS_WCACHE, 0, 0); 1177 start_ccb->ccb_h.ccb_state = ADA_CCB_WCACHE; 1178 xpt_action(start_ccb); 1179 break; 1180 } 1181 } 1182 } 1183 1184 static void 1185 adadone(struct cam_periph *periph, union ccb *done_ccb) 1186 { 1187 struct ada_softc *softc; 1188 struct ccb_ataio *ataio; 1189 1190 softc = (struct ada_softc *)periph->softc; 1191 ataio = &done_ccb->ataio; 1192 switch (ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK) { 1193 case ADA_CCB_BUFFER_IO: 1194 case ADA_CCB_TRIM: 1195 { 1196 struct bio *bp; 1197 1198 bp = (struct bio *)done_ccb->ccb_h.ccb_bp; 1199 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1200 int error; 1201 1202 error = adaerror(done_ccb, 0, 0); 1203 if (error == ERESTART) { 1204 /* A retry was scheduled, so just return. */ 1205 return; 1206 } 1207 if (error != 0) { 1208 if (error == ENXIO) { 1209 /* 1210 * Catastrophic error. Mark our pack as 1211 * invalid. 1212 */ 1213 /* 1214 * XXX See if this is really a media 1215 * XXX change first? 1216 */ 1217 xpt_print(periph->path, 1218 "Invalidating pack\n"); 1219 softc->flags |= ADA_FLAG_PACK_INVALID; 1220 } 1221 bp->bio_error = error; 1222 bp->bio_resid = bp->bio_bcount; 1223 bp->bio_flags |= BIO_ERROR; 1224 } else { 1225 bp->bio_resid = ataio->resid; 1226 bp->bio_error = 0; 1227 if (bp->bio_resid != 0) 1228 bp->bio_flags |= BIO_ERROR; 1229 } 1230 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1231 cam_release_devq(done_ccb->ccb_h.path, 1232 /*relsim_flags*/0, 1233 /*reduction*/0, 1234 /*timeout*/0, 1235 /*getcount_only*/0); 1236 } else { 1237 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) 1238 panic("REQ_CMP with QFRZN"); 1239 bp->bio_resid = ataio->resid; 1240 if (ataio->resid > 0) 1241 bp->bio_flags |= BIO_ERROR; 1242 } 1243 softc->outstanding_cmds--; 1244 if (softc->outstanding_cmds == 0) 1245 softc->flags |= ADA_FLAG_WENT_IDLE; 1246 if ((ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK) == 1247 ADA_CCB_TRIM) { 1248 struct trim_request *req = 1249 (struct trim_request *)ataio->data_ptr; 1250 int i; 1251 1252 for (i = 1; i < softc->trim_max_ranges && 1253 req->bps[i]; i++) { 1254 struct bio *bp1 = req->bps[i]; 1255 1256 bp1->bio_resid = bp->bio_resid; 1257 bp1->bio_error = bp->bio_error; 1258 if (bp->bio_flags & BIO_ERROR) 1259 bp1->bio_flags |= BIO_ERROR; 1260 biodone(bp1); 1261 } 1262 softc->trim_running = 0; 1263 biodone(bp); 1264 adaschedule(periph); 1265 } else 1266 biodone(bp); 1267 break; 1268 } 1269 case ADA_CCB_WCACHE: 1270 { 1271 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) { 1272 if (adaerror(done_ccb, 0, 0) == ERESTART) { 1273 return; 1274 } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) { 1275 cam_release_devq(done_ccb->ccb_h.path, 1276 /*relsim_flags*/0, 1277 /*reduction*/0, 1278 /*timeout*/0, 1279 /*getcount_only*/0); 1280 } 1281 } 1282 1283 softc->state = ADA_STATE_NORMAL; 1284 /* 1285 * Since our peripheral may be invalidated by an error 1286 * above or an external event, we must release our CCB 1287 * before releasing the reference on the peripheral. 1288 * The peripheral will only go away once the last reference 1289 * is removed, and we need it around for the CCB release 1290 * operation. 1291 */ 1292 xpt_release_ccb(done_ccb); 1293 cam_release_devq(periph->path, 1294 RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_DEV + 1, FALSE); 1295 adaschedule(periph); 1296 cam_periph_release_locked(periph); 1297 return; 1298 } 1299 case ADA_CCB_WAITING: 1300 { 1301 /* Caller will release the CCB */ 1302 wakeup(&done_ccb->ccb_h.cbfcnp); 1303 return; 1304 } 1305 case ADA_CCB_DUMP: 1306 /* No-op. We're polling */ 1307 return; 1308 default: 1309 break; 1310 } 1311 xpt_release_ccb(done_ccb); 1312 } 1313 1314 static int 1315 adaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags) 1316 { 1317 struct ada_softc *softc; 1318 struct cam_periph *periph; 1319 1320 periph = xpt_path_periph(ccb->ccb_h.path); 1321 softc = (struct ada_softc *)periph->softc; 1322 1323 return(cam_periph_error(ccb, cam_flags, sense_flags, NULL)); 1324 } 1325 1326 static void 1327 adagetparams(struct cam_periph *periph, struct ccb_getdev *cgd) 1328 { 1329 struct ada_softc *softc = (struct ada_softc *)periph->softc; 1330 struct disk_params *dp = &softc->params; 1331 u_int64_t lbasize48; 1332 u_int32_t lbasize; 1333 1334 dp->secsize = ata_logical_sector_size(&cgd->ident_data); 1335 if ((cgd->ident_data.atavalid & ATA_FLAG_54_58) && 1336 cgd->ident_data.current_heads && cgd->ident_data.current_sectors) { 1337 dp->heads = cgd->ident_data.current_heads; 1338 dp->secs_per_track = cgd->ident_data.current_sectors; 1339 dp->cylinders = cgd->ident_data.cylinders; 1340 dp->sectors = (u_int32_t)cgd->ident_data.current_size_1 | 1341 ((u_int32_t)cgd->ident_data.current_size_2 << 16); 1342 } else { 1343 dp->heads = cgd->ident_data.heads; 1344 dp->secs_per_track = cgd->ident_data.sectors; 1345 dp->cylinders = cgd->ident_data.cylinders; 1346 dp->sectors = cgd->ident_data.cylinders * dp->heads * dp->secs_per_track; 1347 } 1348 lbasize = (u_int32_t)cgd->ident_data.lba_size_1 | 1349 ((u_int32_t)cgd->ident_data.lba_size_2 << 16); 1350 1351 /* use the 28bit LBA size if valid or bigger than the CHS mapping */ 1352 if (cgd->ident_data.cylinders == 16383 || dp->sectors < lbasize) 1353 dp->sectors = lbasize; 1354 1355 /* use the 48bit LBA size if valid */ 1356 lbasize48 = ((u_int64_t)cgd->ident_data.lba_size48_1) | 1357 ((u_int64_t)cgd->ident_data.lba_size48_2 << 16) | 1358 ((u_int64_t)cgd->ident_data.lba_size48_3 << 32) | 1359 ((u_int64_t)cgd->ident_data.lba_size48_4 << 48); 1360 if ((cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) && 1361 lbasize48 > ATA_MAX_28BIT_LBA) 1362 dp->sectors = lbasize48; 1363 } 1364 1365 static void 1366 adasendorderedtag(void *arg) 1367 { 1368 struct ada_softc *softc = arg; 1369 1370 if (ada_send_ordered) { 1371 if ((softc->ordered_tag_count == 0) 1372 && ((softc->flags & ADA_FLAG_WENT_IDLE) == 0)) { 1373 softc->flags |= ADA_FLAG_NEED_OTAG; 1374 } 1375 if (softc->outstanding_cmds > 0) 1376 softc->flags &= ~ADA_FLAG_WENT_IDLE; 1377 1378 softc->ordered_tag_count = 0; 1379 } 1380 /* Queue us up again */ 1381 callout_reset(&softc->sendordered_c, 1382 (ADA_DEFAULT_TIMEOUT * hz) / ADA_ORDEREDTAG_INTERVAL, 1383 adasendorderedtag, softc); 1384 } 1385 1386 /* 1387 * Step through all ADA peripheral drivers, and if the device is still open, 1388 * sync the disk cache to physical media. 1389 */ 1390 static void 1391 adaflush(void) 1392 { 1393 struct cam_periph *periph; 1394 struct ada_softc *softc; 1395 1396 TAILQ_FOREACH(periph, &adadriver.units, unit_links) { 1397 union ccb ccb; 1398 1399 /* If we paniced with lock held - not recurse here. */ 1400 if (cam_periph_owned(periph)) 1401 continue; 1402 cam_periph_lock(periph); 1403 softc = (struct ada_softc *)periph->softc; 1404 /* 1405 * We only sync the cache if the drive is still open, and 1406 * if the drive is capable of it.. 1407 */ 1408 if (((softc->flags & ADA_FLAG_OPEN) == 0) || 1409 (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) == 0) { 1410 cam_periph_unlock(periph); 1411 continue; 1412 } 1413 1414 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1415 1416 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 1417 cam_fill_ataio(&ccb.ataio, 1418 1, 1419 adadone, 1420 CAM_DIR_NONE, 1421 0, 1422 NULL, 1423 0, 1424 ada_default_timeout*1000); 1425 1426 if (softc->flags & ADA_FLAG_CAN_48BIT) 1427 ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0); 1428 else 1429 ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0); 1430 xpt_polled_action(&ccb); 1431 1432 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1433 xpt_print(periph->path, "Synchronize cache failed\n"); 1434 1435 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1436 cam_release_devq(ccb.ccb_h.path, 1437 /*relsim_flags*/0, 1438 /*reduction*/0, 1439 /*timeout*/0, 1440 /*getcount_only*/0); 1441 cam_periph_unlock(periph); 1442 } 1443 } 1444 1445 static void 1446 adaspindown(uint8_t cmd, int flags) 1447 { 1448 struct cam_periph *periph; 1449 struct ada_softc *softc; 1450 1451 TAILQ_FOREACH(periph, &adadriver.units, unit_links) { 1452 union ccb ccb; 1453 1454 /* If we paniced with lock held - not recurse here. */ 1455 if (cam_periph_owned(periph)) 1456 continue; 1457 cam_periph_lock(periph); 1458 softc = (struct ada_softc *)periph->softc; 1459 /* 1460 * We only spin-down the drive if it is capable of it.. 1461 */ 1462 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 1463 cam_periph_unlock(periph); 1464 continue; 1465 } 1466 1467 if (bootverbose) 1468 xpt_print(periph->path, "spin-down\n"); 1469 1470 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL); 1471 1472 ccb.ccb_h.ccb_state = ADA_CCB_DUMP; 1473 cam_fill_ataio(&ccb.ataio, 1474 1, 1475 adadone, 1476 CAM_DIR_NONE | flags, 1477 0, 1478 NULL, 1479 0, 1480 ada_default_timeout*1000); 1481 1482 ata_28bit_cmd(&ccb.ataio, cmd, 0, 0, 0); 1483 xpt_polled_action(&ccb); 1484 1485 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) 1486 xpt_print(periph->path, "Spin-down disk failed\n"); 1487 1488 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0) 1489 cam_release_devq(ccb.ccb_h.path, 1490 /*relsim_flags*/0, 1491 /*reduction*/0, 1492 /*timeout*/0, 1493 /*getcount_only*/0); 1494 cam_periph_unlock(periph); 1495 } 1496 } 1497 1498 static void 1499 adashutdown(void *arg, int howto) 1500 { 1501 1502 adaflush(); 1503 if (ada_spindown_shutdown != 0 && 1504 (howto & (RB_HALT | RB_POWEROFF)) != 0) 1505 adaspindown(ATA_STANDBY_IMMEDIATE, 0); 1506 } 1507 1508 static void 1509 adasuspend(void *arg) 1510 { 1511 1512 adaflush(); 1513 if (ada_spindown_suspend != 0) 1514 adaspindown(ATA_SLEEP, CAM_DEV_QFREEZE); 1515 } 1516 1517 static void 1518 adaresume(void *arg) 1519 { 1520 struct cam_periph *periph; 1521 struct ada_softc *softc; 1522 1523 if (ada_spindown_suspend == 0) 1524 return; 1525 1526 TAILQ_FOREACH(periph, &adadriver.units, unit_links) { 1527 cam_periph_lock(periph); 1528 softc = (struct ada_softc *)periph->softc; 1529 /* 1530 * We only spin-down the drive if it is capable of it.. 1531 */ 1532 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) { 1533 cam_periph_unlock(periph); 1534 continue; 1535 } 1536 1537 if (bootverbose) 1538 xpt_print(periph->path, "resume\n"); 1539 1540 /* 1541 * Drop freeze taken due to CAM_DEV_QFREEZE flag set on 1542 * sleep request. 1543 */ 1544 cam_release_devq(periph->path, 1545 /*relsim_flags*/0, 1546 /*openings*/0, 1547 /*timeout*/0, 1548 /*getcount_only*/0); 1549 1550 cam_periph_unlock(periph); 1551 } 1552 } 1553 1554 #endif /* _KERNEL */ 1555