sys/cam/ata/ata_da.c

   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 #include "opt_ata.h"
  32
  33 #include <sys/param.h>
  34
  35 #ifdef _KERNEL
  36 #include <sys/systm.h>
  37 #include <sys/kernel.h>
  38 #include <sys/bio.h>
  39 #include <sys/sysctl.h>
  40 #include <sys/taskqueue.h>
  41 #include <sys/lock.h>
  42 #include <sys/mutex.h>
  43 #include <sys/conf.h>
  44 #include <sys/devicestat.h>
  45 #include <sys/eventhandler.h>
  46 #include <sys/malloc.h>
  47 #include <sys/cons.h>
  48 #include <sys/reboot.h>
  49 #include <geom/geom_disk.h>
  50 #endif /* _KERNEL */
  51
  52 #ifndef _KERNEL
  53 #include <stdio.h>
  54 #include <string.h>
  55 #endif /* _KERNEL */
  56
  57 #include <cam/cam.h>
  58 #include <cam/cam_ccb.h>
  59 #include <cam/cam_periph.h>
  60 #include <cam/cam_xpt_periph.h>
  61 #include <cam/cam_sim.h>
  62
  63 #include <cam/ata/ata_all.h>
  64
  65 #include <machine/md_var.h>     /* geometry translation */
  66
  67 #ifdef _KERNEL
  68
  69 #define ATA_MAX_28BIT_LBA               268435455UL
  70
  71 typedef enum {
  72         ADA_STATE_RAHEAD,
  73         ADA_STATE_WCACHE,
  74         ADA_STATE_NORMAL
  75 } ada_state;
  76
  77 typedef enum {
  78         ADA_FLAG_PACK_INVALID   = 0x001,
  79         ADA_FLAG_CAN_48BIT      = 0x002,
  80         ADA_FLAG_CAN_FLUSHCACHE = 0x004,
  81         ADA_FLAG_CAN_NCQ        = 0x008,
  82         ADA_FLAG_CAN_DMA        = 0x010,
  83         ADA_FLAG_NEED_OTAG      = 0x020,
  84         ADA_FLAG_WENT_IDLE      = 0x040,
  85         ADA_FLAG_CAN_TRIM       = 0x080,
  86         ADA_FLAG_OPEN           = 0x100,
  87         ADA_FLAG_SCTX_INIT      = 0x200,
  88         ADA_FLAG_CAN_CFA        = 0x400,
  89         ADA_FLAG_CAN_POWERMGT   = 0x800
  90 } ada_flags;
  91
  92 typedef enum {
  93         ADA_Q_NONE              = 0x00,
  94         ADA_Q_4K                = 0x01,
  95 } ada_quirks;
  96
  97 typedef enum {
  98         ADA_CCB_RAHEAD          = 0x01,
  99         ADA_CCB_WCACHE          = 0x02,
 100         ADA_CCB_BUFFER_IO       = 0x03,
 101         ADA_CCB_WAITING         = 0x04,
 102         ADA_CCB_DUMP            = 0x05,
 103         ADA_CCB_TRIM            = 0x06,
 104         ADA_CCB_TYPE_MASK       = 0x0F,
 105 } ada_ccb_state;
 106
 107 /* Offsets into our private area for storing information */
 108 #define ccb_state       ppriv_field0
 109 #define ccb_bp          ppriv_ptr1
 110
 111 struct disk_params {
 112         u_int8_t  heads;
 113         u_int8_t  secs_per_track;
 114         u_int32_t cylinders;
 115         u_int32_t secsize;      /* Number of bytes/logical sector */
 116         u_int64_t sectors;      /* Total number sectors */
 117 };
 118
 119 #define TRIM_MAX_BLOCKS 8
 120 #define TRIM_MAX_RANGES (TRIM_MAX_BLOCKS * 64)
 121 #define TRIM_MAX_BIOS   (TRIM_MAX_RANGES * 4)
 122 struct trim_request {
 123         uint8_t         data[TRIM_MAX_RANGES * 8];
 124         struct bio      *bps[TRIM_MAX_BIOS];
 125 };
 126
 127 struct ada_softc {
 128         struct   bio_queue_head bio_queue;
 129         struct   bio_queue_head trim_queue;
 130         ada_state state;
 131         ada_flags flags;
 132         ada_quirks quirks;
 133         int      ordered_tag_count;
 134         int      outstanding_cmds;
 135         int      trim_max_ranges;
 136         int      trim_running;
 137         int      read_ahead;
 138         int      write_cache;
 139 #ifdef ADA_TEST_FAILURE
 140         int      force_read_error;
 141         int      force_write_error;
 142         int      periodic_read_error;
 143         int      periodic_read_count;
 144 #endif
 145         struct   disk_params params;
 146         struct   disk *disk;
 147         struct task             sysctl_task;
 148         struct sysctl_ctx_list  sysctl_ctx;
 149         struct sysctl_oid       *sysctl_tree;
 150         struct callout          sendordered_c;
 151         struct trim_request     trim_req;
 152 };
 153
 154 struct ada_quirk_entry {
 155         struct scsi_inquiry_pattern inq_pat;
 156         ada_quirks quirks;
 157 };
 158
 159 static struct ada_quirk_entry ada_quirk_table[] =
 160 {
 161         {
 162                 /* Hitachi Advanced Format (4k) drives */
 163                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Hitachi H??????????E3*", "*" },
 164                 /*quirks*/ADA_Q_4K
 165         },
 166         {
 167                 /* Samsung Advanced Format (4k) drives */
 168                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG HD155UI*", "*" },
 169                 /*quirks*/ADA_Q_4K
 170         },
 171         {
 172                 /* Samsung Advanced Format (4k) drives */
 173                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "SAMSUNG HD204UI*", "*" },
 174                 /*quirks*/ADA_Q_4K
 175         },
 176         {
 177                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 178                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST????DL*", "*" },
 179                 /*quirks*/ADA_Q_4K
 180         },
 181         {
 182                 /* Seagate Barracuda Advanced Format (4k) drives */
 183                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST???DM*", "*" },
 184                 /*quirks*/ADA_Q_4K
 185         },
 186         {
 187                 /* Seagate Barracuda Advanced Format (4k) drives */
 188                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST????DM*", "*" },
 189                 /*quirks*/ADA_Q_4K
 190         },
 191         {
 192                 /* Seagate Momentus Advanced Format (4k) drives */
 193                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9500423AS*", "*" },
 194                 /*quirks*/ADA_Q_4K
 195         },
 196         {
 197                 /* Seagate Momentus Advanced Format (4k) drives */
 198                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9500424AS*", "*" },
 199                 /*quirks*/ADA_Q_4K
 200         },
 201         {
 202                 /* Seagate Momentus Advanced Format (4k) drives */
 203                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9640423AS*", "*" },
 204                 /*quirks*/ADA_Q_4K
 205         },
 206         {
 207                 /* Seagate Momentus Advanced Format (4k) drives */
 208                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9640424AS*", "*" },
 209                 /*quirks*/ADA_Q_4K
 210         },
 211         {
 212                 /* Seagate Momentus Advanced Format (4k) drives */
 213                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9750420AS*", "*" },
 214                 /*quirks*/ADA_Q_4K
 215         },
 216         {
 217                 /* Seagate Momentus Advanced Format (4k) drives */
 218                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9750422AS*", "*" },
 219                 /*quirks*/ADA_Q_4K
 220         },
 221         {
 222                 /* Seagate Momentus Advanced Format (4k) drives */
 223                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST9750423AS*", "*" },
 224                 /*quirks*/ADA_Q_4K
 225         },
 226         {
 227                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 228                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "ST???LT*", "*" },
 229                 /*quirks*/ADA_Q_4K
 230         },
 231         {
 232                 /* WDC Caviar Green Advanced Format (4k) drives */
 233                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD????RS*", "*" },
 234                 /*quirks*/ADA_Q_4K
 235         },
 236         {
 237                 /* WDC Caviar Green Advanced Format (4k) drives */
 238                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD????RX*", "*" },
 239                 /*quirks*/ADA_Q_4K
 240         },
 241         {
 242                 /* WDC Caviar Green Advanced Format (4k) drives */
 243                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD??????RS*", "*" },
 244                 /*quirks*/ADA_Q_4K
 245         },
 246         {
 247                 /* WDC Caviar Green Advanced Format (4k) drives */
 248                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD??????RX*", "*" },
 249                 /*quirks*/ADA_Q_4K
 250         },
 251         {
 252                 /* WDC Scorpio Black Advanced Format (4k) drives */
 253                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD???PKT*", "*" },
 254                 /*quirks*/ADA_Q_4K
 255         },
 256         {
 257                 /* WDC Scorpio Black Advanced Format (4k) drives */
 258                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD?????PKT*", "*" },
 259                 /*quirks*/ADA_Q_4K
 260         },
 261         {
 262                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 263                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD???PVT*", "*" },
 264                 /*quirks*/ADA_Q_4K
 265         },
 266         {
 267                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 268                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "WDC WD?????PVT*", "*" },
 269                 /*quirks*/ADA_Q_4K
 270         },
 271         {
 272                 /* Default */
 273                 {
 274                   T_ANY, SIP_MEDIA_REMOVABLE|SIP_MEDIA_FIXED,
 275                   /*vendor*/"*", /*product*/"*", /*revision*/"*"
 276                 },
 277                 /*quirks*/0
 278         },
 279 };
 280
 281 static  disk_strategy_t adastrategy;
 282 static  dumper_t        adadump;
 283 static  periph_init_t   adainit;
 284 static  void            adaasync(void *callback_arg, u_int32_t code,
 285                                 struct cam_path *path, void *arg);
 286 static  void            adasysctlinit(void *context, int pending);
 287 static  periph_ctor_t   adaregister;
 288 static  periph_dtor_t   adacleanup;
 289 static  periph_start_t  adastart;
 290 static  periph_oninv_t  adaoninvalidate;
 291 static  void            adadone(struct cam_periph *periph,
 292                                union ccb *done_ccb);
 293 static  int             adaerror(union ccb *ccb, u_int32_t cam_flags,
 294                                 u_int32_t sense_flags);
 295 static void             adagetparams(struct cam_periph *periph,
 296                                 struct ccb_getdev *cgd);
 297 static timeout_t        adasendorderedtag;
 298 static void             adashutdown(void *arg, int howto);
 299 static void             adasuspend(void *arg);
 300 static void             adaresume(void *arg);
 301
 302 #ifndef ADA_DEFAULT_LEGACY_ALIASES
 303 #ifdef ATA_CAM
 304 #define ADA_DEFAULT_LEGACY_ALIASES      1
 305 #else
 306 #define ADA_DEFAULT_LEGACY_ALIASES      0
 307 #endif
 308 #endif
 309
 310 #ifndef ADA_DEFAULT_TIMEOUT
 311 #define ADA_DEFAULT_TIMEOUT 30  /* Timeout in seconds */
 312 #endif
 313
 314 #ifndef ADA_DEFAULT_RETRY
 315 #define ADA_DEFAULT_RETRY       4
 316 #endif
 317
 318 #ifndef ADA_DEFAULT_SEND_ORDERED
 319 #define ADA_DEFAULT_SEND_ORDERED        1
 320 #endif
 321
 322 #ifndef ADA_DEFAULT_SPINDOWN_SHUTDOWN
 323 #define ADA_DEFAULT_SPINDOWN_SHUTDOWN   1
 324 #endif
 325
 326 #ifndef ADA_DEFAULT_SPINDOWN_SUSPEND
 327 #define ADA_DEFAULT_SPINDOWN_SUSPEND    1
 328 #endif
 329
 330 #ifndef ADA_DEFAULT_READ_AHEAD
 331 #define ADA_DEFAULT_READ_AHEAD  1
 332 #endif
 333
 334 #ifndef ADA_DEFAULT_WRITE_CACHE
 335 #define ADA_DEFAULT_WRITE_CACHE 1
 336 #endif
 337
 338 #define ADA_RA  (softc->read_ahead >= 0 ? \
 339                  softc->read_ahead : ada_read_ahead)
 340 #define ADA_WC  (softc->write_cache >= 0 ? \
 341                  softc->write_cache : ada_write_cache)
 342
 343 /*
 344  * Most platforms map firmware geometry to actual, but some don't.  If
 345  * not overridden, default to nothing.
 346  */
 347 #ifndef ata_disk_firmware_geom_adjust
 348 #define ata_disk_firmware_geom_adjust(disk)
 349 #endif
 350
 351 static int ada_legacy_aliases = ADA_DEFAULT_LEGACY_ALIASES;
 352 static int ada_retry_count = ADA_DEFAULT_RETRY;
 353 static int ada_default_timeout = ADA_DEFAULT_TIMEOUT;
 354 static int ada_send_ordered = ADA_DEFAULT_SEND_ORDERED;
 355 static int ada_spindown_shutdown = ADA_DEFAULT_SPINDOWN_SHUTDOWN;
 356 static int ada_spindown_suspend = ADA_DEFAULT_SPINDOWN_SUSPEND;
 357 static int ada_read_ahead = ADA_DEFAULT_READ_AHEAD;
 358 static int ada_write_cache = ADA_DEFAULT_WRITE_CACHE;
 359
 360 static SYSCTL_NODE(_kern_cam, OID_AUTO, ada, CTLFLAG_RD, 0,
 361             "CAM Direct Access Disk driver");
 362 SYSCTL_INT(_kern_cam_ada, OID_AUTO, legacy_aliases, CTLFLAG_RW,
 363            &ada_legacy_aliases, 0, "Create legacy-like device aliases");
 364 TUNABLE_INT("kern.cam.ada.legacy_aliases", &ada_legacy_aliases);
 365 SYSCTL_INT(_kern_cam_ada, OID_AUTO, retry_count, CTLFLAG_RW,
 366            &ada_retry_count, 0, "Normal I/O retry count");
 367 TUNABLE_INT("kern.cam.ada.retry_count", &ada_retry_count);
 368 SYSCTL_INT(_kern_cam_ada, OID_AUTO, default_timeout, CTLFLAG_RW,
 369            &ada_default_timeout, 0, "Normal I/O timeout (in seconds)");
 370 TUNABLE_INT("kern.cam.ada.default_timeout", &ada_default_timeout);
 371 SYSCTL_INT(_kern_cam_ada, OID_AUTO, ada_send_ordered, CTLFLAG_RW,
 372            &ada_send_ordered, 0, "Send Ordered Tags");
 373 TUNABLE_INT("kern.cam.ada.ada_send_ordered", &ada_send_ordered);
 374 SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_shutdown, CTLFLAG_RW,
 375            &ada_spindown_shutdown, 0, "Spin down upon shutdown");
 376 TUNABLE_INT("kern.cam.ada.spindown_shutdown", &ada_spindown_shutdown);
 377 SYSCTL_INT(_kern_cam_ada, OID_AUTO, spindown_suspend, CTLFLAG_RW,
 378            &ada_spindown_suspend, 0, "Spin down upon suspend");
 379 TUNABLE_INT("kern.cam.ada.spindown_suspend", &ada_spindown_suspend);
 380 SYSCTL_INT(_kern_cam_ada, OID_AUTO, read_ahead, CTLFLAG_RW,
 381            &ada_read_ahead, 0, "Enable disk read-ahead");
 382 TUNABLE_INT("kern.cam.ada.read_ahead", &ada_read_ahead);
 383 SYSCTL_INT(_kern_cam_ada, OID_AUTO, write_cache, CTLFLAG_RW,
 384            &ada_write_cache, 0, "Enable disk write cache");
 385 TUNABLE_INT("kern.cam.ada.write_cache", &ada_write_cache);
 386
 387 /*
 388  * ADA_ORDEREDTAG_INTERVAL determines how often, relative
 389  * to the default timeout, we check to see whether an ordered
 390  * tagged transaction is appropriate to prevent simple tag
 391  * starvation.  Since we'd like to ensure that there is at least
 392  * 1/2 of the timeout length left for a starved transaction to
 393  * complete after we've sent an ordered tag, we must poll at least
 394  * four times in every timeout period.  This takes care of the worst
 395  * case where a starved transaction starts during an interval that
 396  * meets the requirement "don't send an ordered tag" test so it takes
 397  * us two intervals to determine that a tag must be sent.
 398  */
 399 #ifndef ADA_ORDEREDTAG_INTERVAL
 400 #define ADA_ORDEREDTAG_INTERVAL 4
 401 #endif
 402
 403 static struct periph_driver adadriver =
 404 {
 405         adainit, "ada",
 406         TAILQ_HEAD_INITIALIZER(adadriver.units), /* generation */ 0
 407 };
 408
 409 PERIPHDRIVER_DECLARE(ada, adadriver);
 410
 411 static MALLOC_DEFINE(M_ATADA, "ata_da", "ata_da buffers");
 412
 413 static int
 414 adaopen(struct disk *dp)
 415 {
 416         struct cam_periph *periph;
 417         struct ada_softc *softc;
 418         int error;
 419
 420         periph = (struct cam_periph *)dp->d_drv1;
 421         if (periph == NULL) {
 422                 return (ENXIO);
 423         }
 424
 425         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 426                 return(ENXIO);
 427         }
 428
 429         cam_periph_lock(periph);
 430         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 431                 cam_periph_unlock(periph);
 432                 cam_periph_release(periph);
 433                 return (error);
 434         }
 435
 436         softc = (struct ada_softc *)periph->softc;
 437         softc->flags |= ADA_FLAG_OPEN;
 438
 439         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
 440             ("adaopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
 441              periph->unit_number));
 442
 443         if ((softc->flags & ADA_FLAG_PACK_INVALID) != 0) {
 444                 /* Invalidate our pack information. */
 445                 softc->flags &= ~ADA_FLAG_PACK_INVALID;
 446         }
 447
 448         cam_periph_unhold(periph);
 449         cam_periph_unlock(periph);
 450         return (0);
 451 }
 452
 453 static int
 454 adaclose(struct disk *dp)
 455 {
 456         struct  cam_periph *periph;
 457         struct  ada_softc *softc;
 458         union ccb *ccb;
 459
 460         periph = (struct cam_periph *)dp->d_drv1;
 461         if (periph == NULL)
 462                 return (ENXIO);
 463
 464         cam_periph_lock(periph);
 465         if (cam_periph_hold(periph, PRIBIO) != 0) {
 466                 cam_periph_unlock(periph);
 467                 cam_periph_release(periph);
 468                 return (0);
 469         }
 470
 471         softc = (struct ada_softc *)periph->softc;
 472         /* We only sync the cache if the drive is capable of it. */
 473         if ((softc->flags & ADA_FLAG_CAN_FLUSHCACHE) != 0 &&
 474             (softc->flags & ADA_FLAG_PACK_INVALID) == 0) {
 475
 476                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 477                 cam_fill_ataio(&ccb->ataio,
 478                                     1,
 479                                     adadone,
 480                                     CAM_DIR_NONE,
 481                                     0,
 482                                     NULL,
 483                                     0,
 484                                     ada_default_timeout*1000);
 485
 486                 if (softc->flags & ADA_FLAG_CAN_48BIT)
 487                         ata_48bit_cmd(&ccb->ataio, ATA_FLUSHCACHE48, 0, 0, 0);
 488                 else
 489                         ata_28bit_cmd(&ccb->ataio, ATA_FLUSHCACHE, 0, 0, 0);
 490                 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
 491                     /*sense_flags*/0, softc->disk->d_devstat);
 492
 493                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
 494                         xpt_print(periph->path, "Synchronize cache failed\n");
 495                 xpt_release_ccb(ccb);
 496         }
 497
 498         softc->flags &= ~ADA_FLAG_OPEN;
 499         cam_periph_unhold(periph);
 500         cam_periph_unlock(periph);
 501         cam_periph_release(periph);
 502         return (0);
 503 }
 504
 505 static void
 506 adaschedule(struct cam_periph *periph)
 507 {
 508         struct ada_softc *softc = (struct ada_softc *)periph->softc;
 509         uint32_t prio;
 510
 511         /* Check if cam_periph_getccb() was called. */
 512         prio = periph->immediate_priority;
 513
 514         /* Check if we have more work to do. */
 515         if (bioq_first(&softc->bio_queue) ||
 516             (!softc->trim_running && bioq_first(&softc->trim_queue))) {
 517                 prio = CAM_PRIORITY_NORMAL;
 518         }
 519
 520         /* Schedule CCB if any of above is true. */
 521         if (prio != CAM_PRIORITY_NONE)
 522                 xpt_schedule(periph, prio);
 523 }
 524
 525 /*
 526  * Actually translate the requested transfer into one the physical driver
 527  * can understand.  The transfer is described by a buf and will include
 528  * only one physical transfer.
 529  */
 530 static void
 531 adastrategy(struct bio *bp)
 532 {
 533         struct cam_periph *periph;
 534         struct ada_softc *softc;
 535
 536         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 537         if (periph == NULL) {
 538                 biofinish(bp, NULL, ENXIO);
 539                 return;
 540         }
 541         softc = (struct ada_softc *)periph->softc;
 542
 543         cam_periph_lock(periph);
 544
 545         /*
 546          * If the device has been made invalid, error out
 547          */
 548         if ((softc->flags & ADA_FLAG_PACK_INVALID)) {
 549                 cam_periph_unlock(periph);
 550                 biofinish(bp, NULL, ENXIO);
 551                 return;
 552         }
 553
 554         /*
 555          * Place it in the queue of disk activities for this disk
 556          */
 557         if (bp->bio_cmd == BIO_DELETE &&
 558             (softc->flags & ADA_FLAG_CAN_TRIM))
 559                 bioq_disksort(&softc->trim_queue, bp);
 560         else
 561                 bioq_disksort(&softc->bio_queue, bp);
 562
 563         /*
 564          * Schedule ourselves for performing the work.
 565          */
 566         adaschedule(periph);
 567         cam_periph_unlock(periph);
 568
 569         return;
 570 }
 571
 572 static int
 573 adadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
 574 {
 575         struct      cam_periph *periph;
 576         struct      ada_softc *softc;
 577         u_int       secsize;
 578         union       ccb ccb;
 579         struct      disk *dp;
 580         uint64_t    lba;
 581         uint16_t    count;
 582
 583         dp = arg;
 584         periph = dp->d_drv1;
 585         if (periph == NULL)
 586                 return (ENXIO);
 587         softc = (struct ada_softc *)periph->softc;
 588         cam_periph_lock(periph);
 589         secsize = softc->params.secsize;
 590         lba = offset / secsize;
 591         count = length / secsize;
 592
 593         if ((softc->flags & ADA_FLAG_PACK_INVALID) != 0) {
 594                 cam_periph_unlock(periph);
 595                 return (ENXIO);
 596         }
 597
 598         if (length > 0) {
 599                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 600                 ccb.ccb_h.ccb_state = ADA_CCB_DUMP;
 601                 cam_fill_ataio(&ccb.ataio,
 602                     0,
 603                     adadone,
 604                     CAM_DIR_OUT,
 605                     0,
 606                     (u_int8_t *) virtual,
 607                     length,
 608                     ada_default_timeout*1000);
 609                 if ((softc->flags & ADA_FLAG_CAN_48BIT) &&
 610                     (lba + count >= ATA_MAX_28BIT_LBA ||
 611                     count >= 256)) {
 612                         ata_48bit_cmd(&ccb.ataio, ATA_WRITE_DMA48,
 613                             0, lba, count);
 614                 } else {
 615                         ata_28bit_cmd(&ccb.ataio, ATA_WRITE_DMA,
 616                             0, lba, count);
 617                 }
 618                 xpt_polled_action(&ccb);
 619
 620                 if ((ccb.ataio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 621                         printf("Aborting dump due to I/O error.\n");
 622                         cam_periph_unlock(periph);
 623                         return(EIO);
 624                 }
 625                 cam_periph_unlock(periph);
 626                 return(0);
 627         }
 628
 629         if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) {
 630                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 631
 632                 ccb.ccb_h.ccb_state = ADA_CCB_DUMP;
 633                 cam_fill_ataio(&ccb.ataio,
 634                                     1,
 635                                     adadone,
 636                                     CAM_DIR_NONE,
 637                                     0,
 638                                     NULL,
 639                                     0,
 640                                     ada_default_timeout*1000);
 641
 642                 if (softc->flags & ADA_FLAG_CAN_48BIT)
 643                         ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0);
 644                 else
 645                         ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0);
 646                 xpt_polled_action(&ccb);
 647
 648                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
 649                         xpt_print(periph->path, "Synchronize cache failed\n");
 650
 651                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
 652                         cam_release_devq(ccb.ccb_h.path,
 653                                          /*relsim_flags*/0,
 654                                          /*reduction*/0,
 655                                          /*timeout*/0,
 656                                          /*getcount_only*/0);
 657         }
 658         cam_periph_unlock(periph);
 659         return (0);
 660 }
 661
 662 static void
 663 adainit(void)
 664 {
 665         cam_status status;
 666
 667         /*
 668          * Install a global async callback.  This callback will
 669          * receive async callbacks like "new device found".
 670          */
 671         status = xpt_register_async(AC_FOUND_DEVICE, adaasync, NULL, NULL);
 672
 673         if (status != CAM_REQ_CMP) {
 674                 printf("ada: Failed to attach master async callback "
 675                        "due to status 0x%x!\n", status);
 676         } else if (ada_send_ordered) {
 677
 678                 /* Register our event handlers */
 679                 if ((EVENTHANDLER_REGISTER(power_suspend, adasuspend,
 680                                            NULL, EVENTHANDLER_PRI_LAST)) == NULL)
 681                     printf("adainit: power event registration failed!\n");
 682                 if ((EVENTHANDLER_REGISTER(power_resume, adaresume,
 683                                            NULL, EVENTHANDLER_PRI_LAST)) == NULL)
 684                     printf("adainit: power event registration failed!\n");
 685                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, adashutdown,
 686                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
 687                     printf("adainit: shutdown event registration failed!\n");
 688         }
 689 }
 690
 691 static void
 692 adaoninvalidate(struct cam_periph *periph)
 693 {
 694         struct ada_softc *softc;
 695
 696         softc = (struct ada_softc *)periph->softc;
 697
 698         /*
 699          * De-register any async callbacks.
 700          */
 701         xpt_register_async(0, adaasync, periph, periph->path);
 702
 703         softc->flags |= ADA_FLAG_PACK_INVALID;
 704
 705         /*
 706          * Return all queued I/O with ENXIO.
 707          * XXX Handle any transactions queued to the card
 708          *     with XPT_ABORT_CCB.
 709          */
 710         bioq_flush(&softc->bio_queue, NULL, ENXIO);
 711         bioq_flush(&softc->trim_queue, NULL, ENXIO);
 712
 713         disk_gone(softc->disk);
 714         xpt_print(periph->path, "lost device\n");
 715 }
 716
 717 static void
 718 adacleanup(struct cam_periph *periph)
 719 {
 720         struct ada_softc *softc;
 721
 722         softc = (struct ada_softc *)periph->softc;
 723
 724         xpt_print(periph->path, "removing device entry\n");
 725         cam_periph_unlock(periph);
 726
 727         /*
 728          * If we can't free the sysctl tree, oh well...
 729          */
 730         if ((softc->flags & ADA_FLAG_SCTX_INIT) != 0
 731             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
 732                 xpt_print(periph->path, "can't remove sysctl context\n");
 733         }
 734
 735         disk_destroy(softc->disk);
 736         callout_drain(&softc->sendordered_c);
 737         free(softc, M_DEVBUF);
 738         cam_periph_lock(periph);
 739 }
 740
 741 static void
 742 adaasync(void *callback_arg, u_int32_t code,
 743         struct cam_path *path, void *arg)
 744 {
 745         struct cam_periph *periph;
 746         struct ada_softc *softc;
 747
 748         periph = (struct cam_periph *)callback_arg;
 749         switch (code) {
 750         case AC_FOUND_DEVICE:
 751         {
 752                 struct ccb_getdev *cgd;
 753                 cam_status status;
 754
 755                 cgd = (struct ccb_getdev *)arg;
 756                 if (cgd == NULL)
 757                         break;
 758
 759                 if (cgd->protocol != PROTO_ATA)
 760                         break;
 761
 762                 /*
 763                  * Allocate a peripheral instance for
 764                  * this device and start the probe
 765                  * process.
 766                  */
 767                 status = cam_periph_alloc(adaregister, adaoninvalidate,
 768                                           adacleanup, adastart,
 769                                           "ada", CAM_PERIPH_BIO,
 770                                           cgd->ccb_h.path, adaasync,
 771                                           AC_FOUND_DEVICE, cgd);
 772
 773                 if (status != CAM_REQ_CMP
 774                  && status != CAM_REQ_INPROG)
 775                         printf("adaasync: Unable to attach to new device "
 776                                 "due to status 0x%x\n", status);
 777                 break;
 778         }
 779         case AC_ADVINFO_CHANGED:
 780         {
 781                 uintptr_t buftype;
 782
 783                 buftype = (uintptr_t)arg;
 784                 if (buftype == CDAI_TYPE_PHYS_PATH) {
 785                         struct ada_softc *softc;
 786
 787                         softc = periph->softc;
 788                         disk_attr_changed(softc->disk, "GEOM::physpath",
 789                                           M_NOWAIT);
 790                 }
 791                 break;
 792         }
 793         case AC_SENT_BDR:
 794         case AC_BUS_RESET:
 795         {
 796                 struct ccb_getdev cgd;
 797
 798                 softc = (struct ada_softc *)periph->softc;
 799                 cam_periph_async(periph, code, path, arg);
 800                 if (softc->state != ADA_STATE_NORMAL)
 801                         break;
 802                 xpt_setup_ccb(&cgd.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 803                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
 804                 xpt_action((union ccb *)&cgd);
 805                 if (ADA_RA >= 0 &&
 806                     cgd.ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD)
 807                         softc->state = ADA_STATE_RAHEAD;
 808                 else if (ADA_WC >= 0 &&
 809                     cgd.ident_data.support.command1 & ATA_SUPPORT_WRITECACHE)
 810                         softc->state = ADA_STATE_WCACHE;
 811                 else
 812                     break;
 813                 cam_periph_acquire(periph);
 814                 cam_freeze_devq_arg(periph->path,
 815                     RELSIM_RELEASE_RUNLEVEL, CAM_RL_DEV + 1);
 816                 xpt_schedule(periph, CAM_PRIORITY_DEV);
 817         }
 818         default:
 819                 cam_periph_async(periph, code, path, arg);
 820                 break;
 821         }
 822 }
 823
 824 static void
 825 adasysctlinit(void *context, int pending)
 826 {
 827         struct cam_periph *periph;
 828         struct ada_softc *softc;
 829         char tmpstr[80], tmpstr2[80];
 830
 831         periph = (struct cam_periph *)context;
 832
 833         /* periph was held for us when this task was enqueued */
 834         if (periph->flags & CAM_PERIPH_INVALID) {
 835                 cam_periph_release(periph);
 836                 return;
 837         }
 838
 839         softc = (struct ada_softc *)periph->softc;
 840         snprintf(tmpstr, sizeof(tmpstr), "CAM ADA unit %d", periph->unit_number);
 841         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
 842
 843         sysctl_ctx_init(&softc->sysctl_ctx);
 844         softc->flags |= ADA_FLAG_SCTX_INIT;
 845         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
 846                 SYSCTL_STATIC_CHILDREN(_kern_cam_ada), OID_AUTO, tmpstr2,
 847                 CTLFLAG_RD, 0, tmpstr);
 848         if (softc->sysctl_tree == NULL) {
 849                 printf("adasysctlinit: unable to allocate sysctl tree\n");
 850                 cam_periph_release(periph);
 851                 return;
 852         }
 853
 854         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 855                 OID_AUTO, "read_ahead", CTLFLAG_RW | CTLFLAG_MPSAFE,
 856                 &softc->read_ahead, 0, "Enable disk read ahead.");
 857         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 858                 OID_AUTO, "write_cache", CTLFLAG_RW | CTLFLAG_MPSAFE,
 859                 &softc->write_cache, 0, "Enable disk write cache.");
 860 #ifdef ADA_TEST_FAILURE
 861         /*
 862          * Add a 'door bell' sysctl which allows one to set it from userland
 863          * and cause something bad to happen.  For the moment, we only allow
 864          * whacking the next read or write.
 865          */
 866         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 867                 OID_AUTO, "force_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE,
 868                 &softc->force_read_error, 0,
 869                 "Force a read error for the next N reads.");
 870         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 871                 OID_AUTO, "force_write_error", CTLFLAG_RW | CTLFLAG_MPSAFE,
 872                 &softc->force_write_error, 0,
 873                 "Force a write error for the next N writes.");
 874         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
 875                 OID_AUTO, "periodic_read_error", CTLFLAG_RW | CTLFLAG_MPSAFE,
 876                 &softc->periodic_read_error, 0,
 877                 "Force a read error every N reads (don't set too low).");
 878 #endif
 879         cam_periph_release(periph);
 880 }
 881
 882 static int
 883 adagetattr(struct bio *bp)
 884 {
 885         int ret = -1;
 886         struct cam_periph *periph;
 887
 888         if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)
 889                 return ENXIO;
 890         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 891         if (periph->path == NULL)
 892                 return ENXIO;
 893
 894         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
 895             periph->path);
 896         if (ret == 0)
 897                 bp->bio_completed = bp->bio_length;
 898         return ret;
 899 }
 900
 901 static cam_status
 902 adaregister(struct cam_periph *periph, void *arg)
 903 {
 904         struct ada_softc *softc;
 905         struct ccb_pathinq cpi;
 906         struct ccb_getdev *cgd;
 907         char   announce_buf[80], buf1[32];
 908         struct disk_params *dp;
 909         caddr_t match;
 910         u_int maxio;
 911         int legacy_id, quirks;
 912
 913         cgd = (struct ccb_getdev *)arg;
 914         if (periph == NULL) {
 915                 printf("adaregister: periph was NULL!!\n");
 916                 return(CAM_REQ_CMP_ERR);
 917         }
 918
 919         if (cgd == NULL) {
 920                 printf("adaregister: no getdev CCB, can't register device\n");
 921                 return(CAM_REQ_CMP_ERR);
 922         }
 923
 924         softc = (struct ada_softc *)malloc(sizeof(*softc), M_DEVBUF,
 925             M_NOWAIT|M_ZERO);
 926
 927         if (softc == NULL) {
 928                 printf("adaregister: Unable to probe new device. "
 929                     "Unable to allocate softc\n");
 930                 return(CAM_REQ_CMP_ERR);
 931         }
 932
 933         bioq_init(&softc->bio_queue);
 934         bioq_init(&softc->trim_queue);
 935
 936         if (cgd->ident_data.capabilities1 & ATA_SUPPORT_DMA &&
 937             (cgd->inq_flags & SID_DMA))
 938                 softc->flags |= ADA_FLAG_CAN_DMA;
 939         if (cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48)
 940                 softc->flags |= ADA_FLAG_CAN_48BIT;
 941         if (cgd->ident_data.support.command2 & ATA_SUPPORT_FLUSHCACHE)
 942                 softc->flags |= ADA_FLAG_CAN_FLUSHCACHE;
 943         if (cgd->ident_data.support.command1 & ATA_SUPPORT_POWERMGT)
 944                 softc->flags |= ADA_FLAG_CAN_POWERMGT;
 945         if (cgd->ident_data.satacapabilities & ATA_SUPPORT_NCQ &&
 946             (cgd->inq_flags & SID_DMA) && (cgd->inq_flags & SID_CmdQue))
 947                 softc->flags |= ADA_FLAG_CAN_NCQ;
 948         if (cgd->ident_data.support_dsm & ATA_SUPPORT_DSM_TRIM) {
 949                 softc->flags |= ADA_FLAG_CAN_TRIM;
 950                 softc->trim_max_ranges = TRIM_MAX_RANGES;
 951                 if (cgd->ident_data.max_dsm_blocks != 0) {
 952                         softc->trim_max_ranges =
 953                             min(cgd->ident_data.max_dsm_blocks * 64,
 954                                 softc->trim_max_ranges);
 955                 }
 956         }
 957         if (cgd->ident_data.support.command2 & ATA_SUPPORT_CFA)
 958                 softc->flags |= ADA_FLAG_CAN_CFA;
 959
 960         periph->softc = softc;
 961
 962         /*
 963          * See if this device has any quirks.
 964          */
 965         match = cam_quirkmatch((caddr_t)&cgd->ident_data,
 966                                (caddr_t)ada_quirk_table,
 967                                sizeof(ada_quirk_table)/sizeof(*ada_quirk_table),
 968                                sizeof(*ada_quirk_table), ata_identify_match);
 969         if (match != NULL)
 970                 softc->quirks = ((struct ada_quirk_entry *)match)->quirks;
 971         else
 972                 softc->quirks = ADA_Q_NONE;
 973
 974         bzero(&cpi, sizeof(cpi));
 975         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NONE);
 976         cpi.ccb_h.func_code = XPT_PATH_INQ;
 977         xpt_action((union ccb *)&cpi);
 978
 979         TASK_INIT(&softc->sysctl_task, 0, adasysctlinit, periph);
 980
 981         /*
 982          * Register this media as a disk
 983          */
 984         (void)cam_periph_hold(periph, PRIBIO);
 985         mtx_unlock(periph->sim->mtx);
 986         snprintf(announce_buf, sizeof(announce_buf),
 987             "kern.cam.ada.%d.quirks", periph->unit_number);
 988         quirks = softc->quirks;
 989         TUNABLE_INT_FETCH(announce_buf, &quirks);
 990         softc->quirks = quirks;
 991         softc->read_ahead = -1;
 992         snprintf(announce_buf, sizeof(announce_buf),
 993             "kern.cam.ada.%d.read_ahead", periph->unit_number);
 994         TUNABLE_INT_FETCH(announce_buf, &softc->read_ahead);
 995         softc->write_cache = -1;
 996         snprintf(announce_buf, sizeof(announce_buf),
 997             "kern.cam.ada.%d.write_cache", periph->unit_number);
 998         TUNABLE_INT_FETCH(announce_buf, &softc->write_cache);
 999         adagetparams(periph, cgd);
1000         softc->disk = disk_alloc();
1001         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1002                           periph->unit_number, softc->params.secsize,
1003                           DEVSTAT_ALL_SUPPORTED,
1004                           DEVSTAT_TYPE_DIRECT |
1005                           XPORT_DEVSTAT_TYPE(cpi.transport),
1006                           DEVSTAT_PRIORITY_DISK);
1007         softc->disk->d_open = adaopen;
1008         softc->disk->d_close = adaclose;
1009         softc->disk->d_strategy = adastrategy;
1010         softc->disk->d_getattr = adagetattr;
1011         softc->disk->d_dump = adadump;
1012         softc->disk->d_name = "ada";
1013         softc->disk->d_drv1 = periph;
1014         maxio = cpi.maxio;              /* Honor max I/O size of SIM */
1015         if (maxio == 0)
1016                 maxio = DFLTPHYS;       /* traditional default */
1017         else if (maxio > MAXPHYS)
1018                 maxio = MAXPHYS;        /* for safety */
1019         if (softc->flags & ADA_FLAG_CAN_48BIT)
1020                 maxio = min(maxio, 65536 * softc->params.secsize);
1021         else                                    /* 28bit ATA command limit */
1022                 maxio = min(maxio, 256 * softc->params.secsize);
1023         softc->disk->d_maxsize = maxio;
1024         softc->disk->d_unit = periph->unit_number;
1025         softc->disk->d_flags = 0;
1026         if (softc->flags & ADA_FLAG_CAN_FLUSHCACHE)
1027                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1028         if ((softc->flags & ADA_FLAG_CAN_TRIM) ||
1029             ((softc->flags & ADA_FLAG_CAN_CFA) &&
1030             !(softc->flags & ADA_FLAG_CAN_48BIT)))
1031                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
1032         strlcpy(softc->disk->d_descr, cgd->ident_data.model,
1033             MIN(sizeof(softc->disk->d_descr), sizeof(cgd->ident_data.model)));
1034         softc->disk->d_hba_vendor = cpi.hba_vendor;
1035         softc->disk->d_hba_device = cpi.hba_device;
1036         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1037         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1038
1039         softc->disk->d_sectorsize = softc->params.secsize;
1040         softc->disk->d_mediasize = (off_t)softc->params.sectors *
1041             softc->params.secsize;
1042         if (ata_physical_sector_size(&cgd->ident_data) !=
1043             softc->params.secsize) {
1044                 softc->disk->d_stripesize =
1045                     ata_physical_sector_size(&cgd->ident_data);
1046                 softc->disk->d_stripeoffset = (softc->disk->d_stripesize -
1047                     ata_logical_sector_offset(&cgd->ident_data)) %
1048                     softc->disk->d_stripesize;
1049         } else if (softc->quirks & ADA_Q_4K) {
1050                 softc->disk->d_stripesize = 4096;
1051                 softc->disk->d_stripeoffset = 0;
1052         }
1053         softc->disk->d_fwsectors = softc->params.secs_per_track;
1054         softc->disk->d_fwheads = softc->params.heads;
1055         ata_disk_firmware_geom_adjust(softc->disk);
1056
1057         if (ada_legacy_aliases) {
1058 #ifdef ATA_STATIC_ID
1059                 legacy_id = xpt_path_legacy_ata_id(periph->path);
1060 #else
1061                 legacy_id = softc->disk->d_unit;
1062 #endif
1063                 if (legacy_id >= 0) {
1064                         snprintf(announce_buf, sizeof(announce_buf),
1065                             "kern.devalias.%s%d",
1066                             softc->disk->d_name, softc->disk->d_unit);
1067                         snprintf(buf1, sizeof(buf1),
1068                             "ad%d", legacy_id);
1069                         setenv(announce_buf, buf1);
1070                 }
1071         } else
1072                 legacy_id = -1;
1073         disk_create(softc->disk, DISK_VERSION);
1074         mtx_lock(periph->sim->mtx);
1075         cam_periph_unhold(periph);
1076
1077         dp = &softc->params;
1078         snprintf(announce_buf, sizeof(announce_buf),
1079                 "%juMB (%ju %u byte sectors: %dH %dS/T %dC)",
1080                 (uintmax_t)(((uintmax_t)dp->secsize *
1081                 dp->sectors) / (1024*1024)),
1082                 (uintmax_t)dp->sectors,
1083                 dp->secsize, dp->heads,
1084                 dp->secs_per_track, dp->cylinders);
1085         xpt_announce_periph(periph, announce_buf);
1086         if (legacy_id >= 0)
1087                 printf("%s%d: Previously was known as ad%d\n",
1088                        periph->periph_name, periph->unit_number, legacy_id);
1089
1090         /*
1091          * Create our sysctl variables, now that we know
1092          * we have successfully attached.
1093          */
1094         cam_periph_acquire(periph);
1095         taskqueue_enqueue(taskqueue_thread, &softc->sysctl_task);
1096
1097         /*
1098          * Add async callbacks for bus reset and
1099          * bus device reset calls.  I don't bother
1100          * checking if this fails as, in most cases,
1101          * the system will function just fine without
1102          * them and the only alternative would be to
1103          * not attach the device on failure.
1104          */
1105         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
1106             AC_ADVINFO_CHANGED, adaasync, periph, periph->path);
1107
1108         /*
1109          * Schedule a periodic event to occasionally send an
1110          * ordered tag to a device.
1111          */
1112         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1113         callout_reset(&softc->sendordered_c,
1114             (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL,
1115             adasendorderedtag, softc);
1116
1117         if (ADA_RA >= 0 &&
1118             cgd->ident_data.support.command1 & ATA_SUPPORT_LOOKAHEAD) {
1119                 softc->state = ADA_STATE_RAHEAD;
1120                 cam_periph_acquire(periph);
1121                 cam_freeze_devq_arg(periph->path,
1122                     RELSIM_RELEASE_RUNLEVEL, CAM_RL_DEV + 1);
1123                 xpt_schedule(periph, CAM_PRIORITY_DEV);
1124         } else if (ADA_WC >= 0 &&
1125             cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) {
1126                 softc->state = ADA_STATE_WCACHE;
1127                 cam_periph_acquire(periph);
1128                 cam_freeze_devq_arg(periph->path,
1129                     RELSIM_RELEASE_RUNLEVEL, CAM_RL_DEV + 1);
1130                 xpt_schedule(periph, CAM_PRIORITY_DEV);
1131         } else
1132                 softc->state = ADA_STATE_NORMAL;
1133
1134         return(CAM_REQ_CMP);
1135 }
1136
1137 static void
1138 adastart(struct cam_periph *periph, union ccb *start_ccb)
1139 {
1140         struct ada_softc *softc = (struct ada_softc *)periph->softc;
1141         struct ccb_ataio *ataio = &start_ccb->ataio;
1142
1143         switch (softc->state) {
1144         case ADA_STATE_NORMAL:
1145         {
1146                 struct bio *bp;
1147                 u_int8_t tag_code;
1148
1149                 /* Execute immediate CCB if waiting. */
1150                 if (periph->immediate_priority <= periph->pinfo.priority) {
1151                         CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1152                                         ("queuing for immediate ccb\n"));
1153                         start_ccb->ccb_h.ccb_state = ADA_CCB_WAITING;
1154                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1155                                           periph_links.sle);
1156                         periph->immediate_priority = CAM_PRIORITY_NONE;
1157                         wakeup(&periph->ccb_list);
1158                         /* Have more work to do, so ensure we stay scheduled */
1159                         adaschedule(periph);
1160                         break;
1161                 }
1162                 /* Run TRIM if not running yet. */
1163                 if (!softc->trim_running &&
1164                     (bp = bioq_first(&softc->trim_queue)) != 0) {
1165                         struct trim_request *req = &softc->trim_req;
1166                         struct bio *bp1;
1167                         uint64_t lastlba = (uint64_t)-1;
1168                         int bps = 0, c, lastcount = 0, off, ranges = 0;
1169
1170                         softc->trim_running = 1;
1171                         bzero(req, sizeof(*req));
1172                         bp1 = bp;
1173                         do {
1174                                 uint64_t lba = bp1->bio_pblkno;
1175                                 int count = bp1->bio_bcount /
1176                                     softc->params.secsize;
1177
1178                                 bioq_remove(&softc->trim_queue, bp1);
1179
1180                                 /* Try to extend the previous range. */
1181                                 if (lba == lastlba) {
1182                                         c = min(count, 0xffff - lastcount);
1183                                         lastcount += c;
1184                                         off = (ranges - 1) * 8;
1185                                         req->data[off + 6] = lastcount & 0xff;
1186                                         req->data[off + 7] =
1187                                             (lastcount >> 8) & 0xff;
1188                                         count -= c;
1189                                         lba += c;
1190                                 }
1191
1192                                 while (count > 0) {
1193                                         c = min(count, 0xffff);
1194                                         off = ranges * 8;
1195                                         req->data[off + 0] = lba & 0xff;
1196                                         req->data[off + 1] = (lba >> 8) & 0xff;
1197                                         req->data[off + 2] = (lba >> 16) & 0xff;
1198                                         req->data[off + 3] = (lba >> 24) & 0xff;
1199                                         req->data[off + 4] = (lba >> 32) & 0xff;
1200                                         req->data[off + 5] = (lba >> 40) & 0xff;
1201                                         req->data[off + 6] = c & 0xff;
1202                                         req->data[off + 7] = (c >> 8) & 0xff;
1203                                         lba += c;
1204                                         count -= c;
1205                                         lastcount = c;
1206                                         ranges++;
1207                                 }
1208                                 lastlba = lba;
1209                                 req->bps[bps++] = bp1;
1210                                 bp1 = bioq_first(&softc->trim_queue);
1211                                 if (bps >= TRIM_MAX_BIOS ||
1212                                     bp1 == NULL ||
1213                                     bp1->bio_bcount / softc->params.secsize >
1214                                     (softc->trim_max_ranges - ranges) * 0xffff)
1215                                         break;
1216                         } while (1);
1217                         cam_fill_ataio(ataio,
1218                             ada_retry_count,
1219                             adadone,
1220                             CAM_DIR_OUT,
1221                             0,
1222                             req->data,
1223                             ((ranges + 63) / 64) * 512,
1224                             ada_default_timeout * 1000);
1225                         ata_48bit_cmd(ataio, ATA_DATA_SET_MANAGEMENT,
1226                             ATA_DSM_TRIM, 0, (ranges + 63) / 64);
1227                         start_ccb->ccb_h.ccb_state = ADA_CCB_TRIM;
1228                         goto out;
1229                 }
1230                 /* Run regular command. */
1231                 bp = bioq_first(&softc->bio_queue);
1232                 if (bp == NULL) {
1233                         xpt_release_ccb(start_ccb);
1234                         break;
1235                 }
1236                 bioq_remove(&softc->bio_queue, bp);
1237
1238                 if ((bp->bio_flags & BIO_ORDERED) != 0
1239                  || (softc->flags & ADA_FLAG_NEED_OTAG) != 0) {
1240                         softc->flags &= ~ADA_FLAG_NEED_OTAG;
1241                         softc->ordered_tag_count++;
1242                         tag_code = 0;
1243                 } else {
1244                         tag_code = 1;
1245                 }
1246                 switch (bp->bio_cmd) {
1247                 case BIO_READ:
1248                 case BIO_WRITE:
1249                 {
1250                         uint64_t lba = bp->bio_pblkno;
1251                         uint16_t count = bp->bio_bcount / softc->params.secsize;
1252 #ifdef ADA_TEST_FAILURE
1253                         int fail = 0;
1254
1255                         /*
1256                          * Support the failure ioctls.  If the command is a
1257                          * read, and there are pending forced read errors, or
1258                          * if a write and pending write errors, then fail this
1259                          * operation with EIO.  This is useful for testing
1260                          * purposes.  Also, support having every Nth read fail.
1261                          *
1262                          * This is a rather blunt tool.
1263                          */
1264                         if (bp->bio_cmd == BIO_READ) {
1265                                 if (softc->force_read_error) {
1266                                         softc->force_read_error--;
1267                                         fail = 1;
1268                                 }
1269                                 if (softc->periodic_read_error > 0) {
1270                                         if (++softc->periodic_read_count >=
1271                                             softc->periodic_read_error) {
1272                                                 softc->periodic_read_count = 0;
1273                                                 fail = 1;
1274                                         }
1275                                 }
1276                         } else {
1277                                 if (softc->force_write_error) {
1278                                         softc->force_write_error--;
1279                                         fail = 1;
1280                                 }
1281                         }
1282                         if (fail) {
1283                                 bp->bio_error = EIO;
1284                                 bp->bio_flags |= BIO_ERROR;
1285                                 biodone(bp);
1286                                 xpt_release_ccb(start_ccb);
1287                                 adaschedule(periph);
1288                                 return;
1289                         }
1290 #endif
1291                         cam_fill_ataio(ataio,
1292                             ada_retry_count,
1293                             adadone,
1294                             bp->bio_cmd == BIO_READ ?
1295                                 CAM_DIR_IN : CAM_DIR_OUT,
1296                             tag_code,
1297                             bp->bio_data,
1298                             bp->bio_bcount,
1299                             ada_default_timeout*1000);
1300
1301                         if ((softc->flags & ADA_FLAG_CAN_NCQ) && tag_code) {
1302                                 if (bp->bio_cmd == BIO_READ) {
1303                                         ata_ncq_cmd(ataio, ATA_READ_FPDMA_QUEUED,
1304                                             lba, count);
1305                                 } else {
1306                                         ata_ncq_cmd(ataio, ATA_WRITE_FPDMA_QUEUED,
1307                                             lba, count);
1308                                 }
1309                         } else if ((softc->flags & ADA_FLAG_CAN_48BIT) &&
1310                             (lba + count >= ATA_MAX_28BIT_LBA ||
1311                             count > 256)) {
1312                                 if (softc->flags & ADA_FLAG_CAN_DMA) {
1313                                         if (bp->bio_cmd == BIO_READ) {
1314                                                 ata_48bit_cmd(ataio, ATA_READ_DMA48,
1315                                                     0, lba, count);
1316                                         } else {
1317                                                 ata_48bit_cmd(ataio, ATA_WRITE_DMA48,
1318                                                     0, lba, count);
1319                                         }
1320                                 } else {
1321                                         if (bp->bio_cmd == BIO_READ) {
1322                                                 ata_48bit_cmd(ataio, ATA_READ_MUL48,
1323                                                     0, lba, count);
1324                                         } else {
1325                                                 ata_48bit_cmd(ataio, ATA_WRITE_MUL48,
1326                                                     0, lba, count);
1327                                         }
1328                                 }
1329                         } else {
1330                                 if (count == 256)
1331                                         count = 0;
1332                                 if (softc->flags & ADA_FLAG_CAN_DMA) {
1333                                         if (bp->bio_cmd == BIO_READ) {
1334                                                 ata_28bit_cmd(ataio, ATA_READ_DMA,
1335                                                     0, lba, count);
1336                                         } else {
1337                                                 ata_28bit_cmd(ataio, ATA_WRITE_DMA,
1338                                                     0, lba, count);
1339                                         }
1340                                 } else {
1341                                         if (bp->bio_cmd == BIO_READ) {
1342                                                 ata_28bit_cmd(ataio, ATA_READ_MUL,
1343                                                     0, lba, count);
1344                                         } else {
1345                                                 ata_28bit_cmd(ataio, ATA_WRITE_MUL,
1346                                                     0, lba, count);
1347                                         }
1348                                 }
1349                         }
1350                         break;
1351                 }
1352                 case BIO_DELETE:
1353                 {
1354                         uint64_t lba = bp->bio_pblkno;
1355                         uint16_t count = bp->bio_bcount / softc->params.secsize;
1356
1357                         cam_fill_ataio(ataio,
1358                             ada_retry_count,
1359                             adadone,
1360                             CAM_DIR_NONE,
1361                             0,
1362                             NULL,
1363                             0,
1364                             ada_default_timeout*1000);
1365
1366                         if (count >= 256)
1367                                 count = 0;
1368                         ata_28bit_cmd(ataio, ATA_CFA_ERASE, 0, lba, count);
1369                         break;
1370                 }
1371                 case BIO_FLUSH:
1372                         cam_fill_ataio(ataio,
1373                             1,
1374                             adadone,
1375                             CAM_DIR_NONE,
1376                             0,
1377                             NULL,
1378                             0,
1379                             ada_default_timeout*1000);
1380
1381                         if (softc->flags & ADA_FLAG_CAN_48BIT)
1382                                 ata_48bit_cmd(ataio, ATA_FLUSHCACHE48, 0, 0, 0);
1383                         else
1384                                 ata_28bit_cmd(ataio, ATA_FLUSHCACHE, 0, 0, 0);
1385                         break;
1386                 }
1387                 start_ccb->ccb_h.ccb_state = ADA_CCB_BUFFER_IO;
1388 out:
1389                 start_ccb->ccb_h.ccb_bp = bp;
1390                 softc->outstanding_cmds++;
1391                 xpt_action(start_ccb);
1392
1393                 /* May have more work to do, so ensure we stay scheduled */
1394                 adaschedule(periph);
1395                 break;
1396         }
1397         case ADA_STATE_RAHEAD:
1398         case ADA_STATE_WCACHE:
1399         {
1400                 if (softc->flags & ADA_FLAG_PACK_INVALID) {
1401                         softc->state = ADA_STATE_NORMAL;
1402                         xpt_release_ccb(start_ccb);
1403                         cam_release_devq(periph->path,
1404                             RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_DEV + 1, FALSE);
1405                         adaschedule(periph);
1406                         cam_periph_release_locked(periph);
1407                         return;
1408                 }
1409
1410                 cam_fill_ataio(ataio,
1411                     1,
1412                     adadone,
1413                     CAM_DIR_NONE,
1414                     0,
1415                     NULL,
1416                     0,
1417                     ada_default_timeout*1000);
1418
1419                 if (softc->state == ADA_STATE_RAHEAD) {
1420                         ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_RA ?
1421                             ATA_SF_ENAB_RCACHE : ATA_SF_DIS_RCACHE, 0, 0);
1422                         start_ccb->ccb_h.ccb_state = ADA_CCB_RAHEAD;
1423                 } else {
1424                         ata_28bit_cmd(ataio, ATA_SETFEATURES, ADA_WC ?
1425                             ATA_SF_ENAB_WCACHE : ATA_SF_DIS_WCACHE, 0, 0);
1426                         start_ccb->ccb_h.ccb_state = ADA_CCB_WCACHE;
1427                 }
1428                 xpt_action(start_ccb);
1429                 break;
1430         }
1431         }
1432 }
1433
1434 static void
1435 adadone(struct cam_periph *periph, union ccb *done_ccb)
1436 {
1437         struct ada_softc *softc;
1438         struct ccb_ataio *ataio;
1439         struct ccb_getdev *cgd;
1440
1441         softc = (struct ada_softc *)periph->softc;
1442         ataio = &done_ccb->ataio;
1443         switch (ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK) {
1444         case ADA_CCB_BUFFER_IO:
1445         case ADA_CCB_TRIM:
1446         {
1447                 struct bio *bp;
1448
1449                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1450                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1451                         int error;
1452
1453                         error = adaerror(done_ccb, 0, 0);
1454                         if (error == ERESTART) {
1455                                 /* A retry was scheduled, so just return. */
1456                                 return;
1457                         }
1458                         if (error != 0) {
1459                                 if (error == ENXIO &&
1460                                     (softc->flags & ADA_FLAG_PACK_INVALID) == 0) {
1461                                         /*
1462                                          * Catastrophic error.  Mark our pack as
1463                                          * invalid.
1464                                          */
1465                                         /*
1466                                          * XXX See if this is really a media
1467                                          * XXX change first?
1468                                          */
1469                                         xpt_print(periph->path,
1470                                             "Invalidating pack\n");
1471                                         softc->flags |= ADA_FLAG_PACK_INVALID;
1472                                 }
1473                                 bp->bio_error = error;
1474                                 bp->bio_resid = bp->bio_bcount;
1475                                 bp->bio_flags |= BIO_ERROR;
1476                         } else {
1477                                 bp->bio_resid = ataio->resid;
1478                                 bp->bio_error = 0;
1479                                 if (bp->bio_resid != 0)
1480                                         bp->bio_flags |= BIO_ERROR;
1481                         }
1482                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1483                                 cam_release_devq(done_ccb->ccb_h.path,
1484                                                  /*relsim_flags*/0,
1485                                                  /*reduction*/0,
1486                                                  /*timeout*/0,
1487                                                  /*getcount_only*/0);
1488                 } else {
1489                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1490                                 panic("REQ_CMP with QFRZN");
1491                         bp->bio_resid = ataio->resid;
1492                         if (ataio->resid > 0)
1493                                 bp->bio_flags |= BIO_ERROR;
1494                 }
1495                 softc->outstanding_cmds--;
1496                 if (softc->outstanding_cmds == 0)
1497                         softc->flags |= ADA_FLAG_WENT_IDLE;
1498                 if ((ataio->ccb_h.ccb_state & ADA_CCB_TYPE_MASK) ==
1499                     ADA_CCB_TRIM) {
1500                         struct trim_request *req =
1501                             (struct trim_request *)ataio->data_ptr;
1502                         int i;
1503
1504                         for (i = 1; i < TRIM_MAX_BIOS && req->bps[i]; i++) {
1505                                 struct bio *bp1 = req->bps[i];
1506
1507                                 bp1->bio_resid = bp->bio_resid;
1508                                 bp1->bio_error = bp->bio_error;
1509                                 if (bp->bio_flags & BIO_ERROR)
1510                                         bp1->bio_flags |= BIO_ERROR;
1511                                 biodone(bp1);
1512                         }
1513                         softc->trim_running = 0;
1514                         biodone(bp);
1515                         adaschedule(periph);
1516                 } else
1517                         biodone(bp);
1518                 break;
1519         }
1520         case ADA_CCB_RAHEAD:
1521         {
1522                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1523                         if (adaerror(done_ccb, 0, 0) == ERESTART) {
1524                                 return;
1525                         } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1526                                 cam_release_devq(done_ccb->ccb_h.path,
1527                                     /*relsim_flags*/0,
1528                                     /*reduction*/0,
1529                                     /*timeout*/0,
1530                                     /*getcount_only*/0);
1531                         }
1532                 }
1533
1534                 /*
1535                  * Since our peripheral may be invalidated by an error
1536                  * above or an external event, we must release our CCB
1537                  * before releasing the reference on the peripheral.
1538                  * The peripheral will only go away once the last reference
1539                  * is removed, and we need it around for the CCB release
1540                  * operation.
1541                  */
1542                 cgd = (struct ccb_getdev *)done_ccb;
1543                 xpt_setup_ccb(&cgd->ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1544                 cgd->ccb_h.func_code = XPT_GDEV_TYPE;
1545                 xpt_action((union ccb *)cgd);
1546                 if (ADA_WC >= 0 &&
1547                     cgd->ident_data.support.command1 & ATA_SUPPORT_WRITECACHE) {
1548                         softc->state = ADA_STATE_WCACHE;
1549                         xpt_release_ccb(done_ccb);
1550                         xpt_schedule(periph, CAM_PRIORITY_DEV);
1551                         return;
1552                 }
1553                 softc->state = ADA_STATE_NORMAL;
1554                 xpt_release_ccb(done_ccb);
1555                 cam_release_devq(periph->path,
1556                     RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_DEV + 1, FALSE);
1557                 adaschedule(periph);
1558                 cam_periph_release_locked(periph);
1559                 return;
1560         }
1561         case ADA_CCB_WCACHE:
1562         {
1563                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1564                         if (adaerror(done_ccb, 0, 0) == ERESTART) {
1565                                 return;
1566                         } else if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
1567                                 cam_release_devq(done_ccb->ccb_h.path,
1568                                     /*relsim_flags*/0,
1569                                     /*reduction*/0,
1570                                     /*timeout*/0,
1571                                     /*getcount_only*/0);
1572                         }
1573                 }
1574
1575                 softc->state = ADA_STATE_NORMAL;
1576                 /*
1577                  * Since our peripheral may be invalidated by an error
1578                  * above or an external event, we must release our CCB
1579                  * before releasing the reference on the peripheral.
1580                  * The peripheral will only go away once the last reference
1581                  * is removed, and we need it around for the CCB release
1582                  * operation.
1583                  */
1584                 xpt_release_ccb(done_ccb);
1585                 cam_release_devq(periph->path,
1586                     RELSIM_RELEASE_RUNLEVEL, 0, CAM_RL_DEV + 1, FALSE);
1587                 adaschedule(periph);
1588                 cam_periph_release_locked(periph);
1589                 return;
1590         }
1591         case ADA_CCB_WAITING:
1592         {
1593                 /* Caller will release the CCB */
1594                 wakeup(&done_ccb->ccb_h.cbfcnp);
1595                 return;
1596         }
1597         case ADA_CCB_DUMP:
1598                 /* No-op.  We're polling */
1599                 return;
1600         default:
1601                 break;
1602         }
1603         xpt_release_ccb(done_ccb);
1604 }
1605
1606 static int
1607 adaerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1608 {
1609
1610         return(cam_periph_error(ccb, cam_flags, sense_flags, NULL));
1611 }
1612
1613 static void
1614 adagetparams(struct cam_periph *periph, struct ccb_getdev *cgd)
1615 {
1616         struct ada_softc *softc = (struct ada_softc *)periph->softc;
1617         struct disk_params *dp = &softc->params;
1618         u_int64_t lbasize48;
1619         u_int32_t lbasize;
1620
1621         dp->secsize = ata_logical_sector_size(&cgd->ident_data);
1622         if ((cgd->ident_data.atavalid & ATA_FLAG_54_58) &&
1623                 cgd->ident_data.current_heads && cgd->ident_data.current_sectors) {
1624                 dp->heads = cgd->ident_data.current_heads;
1625                 dp->secs_per_track = cgd->ident_data.current_sectors;
1626                 dp->cylinders = cgd->ident_data.cylinders;
1627                 dp->sectors = (u_int32_t)cgd->ident_data.current_size_1 |
1628                           ((u_int32_t)cgd->ident_data.current_size_2 << 16);
1629         } else {
1630                 dp->heads = cgd->ident_data.heads;
1631                 dp->secs_per_track = cgd->ident_data.sectors;
1632                 dp->cylinders = cgd->ident_data.cylinders;
1633                 dp->sectors = cgd->ident_data.cylinders * dp->heads * dp->secs_per_track;
1634         }
1635         lbasize = (u_int32_t)cgd->ident_data.lba_size_1 |
1636                   ((u_int32_t)cgd->ident_data.lba_size_2 << 16);
1637
1638         /* use the 28bit LBA size if valid or bigger than the CHS mapping */
1639         if (cgd->ident_data.cylinders == 16383 || dp->sectors < lbasize)
1640                 dp->sectors = lbasize;
1641
1642         /* use the 48bit LBA size if valid */
1643         lbasize48 = ((u_int64_t)cgd->ident_data.lba_size48_1) |
1644                     ((u_int64_t)cgd->ident_data.lba_size48_2 << 16) |
1645                     ((u_int64_t)cgd->ident_data.lba_size48_3 << 32) |
1646                     ((u_int64_t)cgd->ident_data.lba_size48_4 << 48);
1647         if ((cgd->ident_data.support.command2 & ATA_SUPPORT_ADDRESS48) &&
1648             lbasize48 > ATA_MAX_28BIT_LBA)
1649                 dp->sectors = lbasize48;
1650 }
1651
1652 static void
1653 adasendorderedtag(void *arg)
1654 {
1655         struct ada_softc *softc = arg;
1656
1657         if (ada_send_ordered) {
1658                 if ((softc->ordered_tag_count == 0)
1659                  && ((softc->flags & ADA_FLAG_WENT_IDLE) == 0)) {
1660                         softc->flags |= ADA_FLAG_NEED_OTAG;
1661                 }
1662                 if (softc->outstanding_cmds > 0)
1663                         softc->flags &= ~ADA_FLAG_WENT_IDLE;
1664
1665                 softc->ordered_tag_count = 0;
1666         }
1667         /* Queue us up again */
1668         callout_reset(&softc->sendordered_c,
1669             (ada_default_timeout * hz) / ADA_ORDEREDTAG_INTERVAL,
1670             adasendorderedtag, softc);
1671 }
1672
1673 /*
1674  * Step through all ADA peripheral drivers, and if the device is still open,
1675  * sync the disk cache to physical media.
1676  */
1677 static void
1678 adaflush(void)
1679 {
1680         struct cam_periph *periph;
1681         struct ada_softc *softc;
1682
1683         TAILQ_FOREACH(periph, &adadriver.units, unit_links) {
1684                 union ccb ccb;
1685
1686                 /* If we paniced with lock held - not recurse here. */
1687                 if (cam_periph_owned(periph))
1688                         continue;
1689                 cam_periph_lock(periph);
1690                 softc = (struct ada_softc *)periph->softc;
1691                 /*
1692                  * We only sync the cache if the drive is still open, and
1693                  * if the drive is capable of it..
1694                  */
1695                 if (((softc->flags & ADA_FLAG_OPEN) == 0) ||
1696                     (softc->flags & ADA_FLAG_CAN_FLUSHCACHE) == 0) {
1697                         cam_periph_unlock(periph);
1698                         continue;
1699                 }
1700
1701                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1702
1703                 ccb.ccb_h.ccb_state = ADA_CCB_DUMP;
1704                 cam_fill_ataio(&ccb.ataio,
1705                                     1,
1706                                     adadone,
1707                                     CAM_DIR_NONE,
1708                                     0,
1709                                     NULL,
1710                                     0,
1711                                     ada_default_timeout*1000);
1712
1713                 if (softc->flags & ADA_FLAG_CAN_48BIT)
1714                         ata_48bit_cmd(&ccb.ataio, ATA_FLUSHCACHE48, 0, 0, 0);
1715                 else
1716                         ata_28bit_cmd(&ccb.ataio, ATA_FLUSHCACHE, 0, 0, 0);
1717                 xpt_polled_action(&ccb);
1718
1719                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
1720                         xpt_print(periph->path, "Synchronize cache failed\n");
1721
1722                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1723                         cam_release_devq(ccb.ccb_h.path,
1724                                          /*relsim_flags*/0,
1725                                          /*reduction*/0,
1726                                          /*timeout*/0,
1727                                          /*getcount_only*/0);
1728                 cam_periph_unlock(periph);
1729         }
1730 }
1731
1732 static void
1733 adaspindown(uint8_t cmd, int flags)
1734 {
1735         struct cam_periph *periph;
1736         struct ada_softc *softc;
1737
1738         TAILQ_FOREACH(periph, &adadriver.units, unit_links) {
1739                 union ccb ccb;
1740
1741                 /* If we paniced with lock held - not recurse here. */
1742                 if (cam_periph_owned(periph))
1743                         continue;
1744                 cam_periph_lock(periph);
1745                 softc = (struct ada_softc *)periph->softc;
1746                 /*
1747                  * We only spin-down the drive if it is capable of it..
1748                  */
1749                 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) {
1750                         cam_periph_unlock(periph);
1751                         continue;
1752                 }
1753
1754                 if (bootverbose)
1755                         xpt_print(periph->path, "spin-down\n");
1756
1757                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1758
1759                 ccb.ccb_h.ccb_state = ADA_CCB_DUMP;
1760                 cam_fill_ataio(&ccb.ataio,
1761                                     1,
1762                                     adadone,
1763                                     CAM_DIR_NONE | flags,
1764                                     0,
1765                                     NULL,
1766                                     0,
1767                                     ada_default_timeout*1000);
1768
1769                 ata_28bit_cmd(&ccb.ataio, cmd, 0, 0, 0);
1770                 xpt_polled_action(&ccb);
1771
1772                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP)
1773                         xpt_print(periph->path, "Spin-down disk failed\n");
1774
1775                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
1776                         cam_release_devq(ccb.ccb_h.path,
1777                                          /*relsim_flags*/0,
1778                                          /*reduction*/0,
1779                                          /*timeout*/0,
1780                                          /*getcount_only*/0);
1781                 cam_periph_unlock(periph);
1782         }
1783 }
1784
1785 static void
1786 adashutdown(void *arg, int howto)
1787 {
1788
1789         adaflush();
1790         if (ada_spindown_shutdown != 0 &&
1791             (howto & (RB_HALT | RB_POWEROFF)) != 0)
1792                 adaspindown(ATA_STANDBY_IMMEDIATE, 0);
1793 }
1794
1795 static void
1796 adasuspend(void *arg)
1797 {
1798
1799         adaflush();
1800         if (ada_spindown_suspend != 0)
1801                 adaspindown(ATA_SLEEP, CAM_DEV_QFREEZE);
1802 }
1803
1804 static void
1805 adaresume(void *arg)
1806 {
1807         struct cam_periph *periph;
1808         struct ada_softc *softc;
1809
1810         if (ada_spindown_suspend == 0)
1811                 return;
1812
1813         TAILQ_FOREACH(periph, &adadriver.units, unit_links) {
1814                 cam_periph_lock(periph);
1815                 softc = (struct ada_softc *)periph->softc;
1816                 /*
1817                  * We only spin-down the drive if it is capable of it..
1818                  */
1819                 if ((softc->flags & ADA_FLAG_CAN_POWERMGT) == 0) {
1820                         cam_periph_unlock(periph);
1821                         continue;
1822                 }
1823
1824                 if (bootverbose)
1825                         xpt_print(periph->path, "resume\n");
1826
1827                 /*
1828                  * Drop freeze taken due to CAM_DEV_QFREEZE flag set on
1829                  * sleep request.
1830                  */
1831                 cam_release_devq(periph->path,
1832                          /*relsim_flags*/0,
1833                          /*openings*/0,
1834                          /*timeout*/0,
1835                          /*getcount_only*/0);
1836
1837                 cam_periph_unlock(periph);
1838         }
1839 }
1840
1841 #endif /* _KERNEL */