sys/cam/scsi/scsi_da.c

   1 /*-
   2  * Implementation of SCSI Direct Access Peripheral driver for CAM.
   3  *
   4  * Copyright (c) 1997 Justin T. Gibbs.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions, and the following disclaimer,
  12  *    without modification, immediately at the beginning of the file.
  13  * 2. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  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/endian.h>
  48 #include <sys/proc.h>
  49 #include <geom/geom.h>
  50 #include <geom/geom_disk.h>
  51 #endif /* _KERNEL */
  52
  53 #ifndef _KERNEL
  54 #include <stdio.h>
  55 #include <string.h>
  56 #endif /* _KERNEL */
  57
  58 #include <cam/cam.h>
  59 #include <cam/cam_ccb.h>
  60 #include <cam/cam_periph.h>
  61 #include <cam/cam_xpt_periph.h>
  62 #include <cam/cam_sim.h>
  63
  64 #include <cam/scsi/scsi_message.h>
  65
  66 #ifndef _KERNEL
  67 #include <cam/scsi/scsi_da.h>
  68 #endif /* !_KERNEL */
  69
  70 #ifdef _KERNEL
  71 typedef enum {
  72         DA_STATE_PROBE_RC,
  73         DA_STATE_PROBE_RC16,
  74         DA_STATE_PROBE_LBP,
  75         DA_STATE_PROBE_BLK_LIMITS,
  76         DA_STATE_PROBE_BDC,
  77         DA_STATE_PROBE_ATA,
  78         DA_STATE_NORMAL
  79 } da_state;
  80
  81 typedef enum {
  82         DA_FLAG_PACK_INVALID    = 0x001,
  83         DA_FLAG_NEW_PACK        = 0x002,
  84         DA_FLAG_PACK_LOCKED     = 0x004,
  85         DA_FLAG_PACK_REMOVABLE  = 0x008,
  86         DA_FLAG_NEED_OTAG       = 0x020,
  87         DA_FLAG_WAS_OTAG        = 0x040,
  88         DA_FLAG_RETRY_UA        = 0x080,
  89         DA_FLAG_OPEN            = 0x100,
  90         DA_FLAG_SCTX_INIT       = 0x200,
  91         DA_FLAG_CAN_RC16        = 0x400,
  92         DA_FLAG_PROBED          = 0x800,
  93         DA_FLAG_DIRTY           = 0x1000,
  94         DA_FLAG_ANNOUNCED       = 0x2000
  95 } da_flags;
  96
  97 typedef enum {
  98         DA_Q_NONE               = 0x00,
  99         DA_Q_NO_SYNC_CACHE      = 0x01,
 100         DA_Q_NO_6_BYTE          = 0x02,
 101         DA_Q_NO_PREVENT         = 0x04,
 102         DA_Q_4K                 = 0x08,
 103         DA_Q_NO_RC16            = 0x10,
 104         DA_Q_NO_UNMAP           = 0x20
 105 } da_quirks;
 106
 107 #define DA_Q_BIT_STRING         \
 108         "\020"                  \
 109         "\001NO_SYNC_CACHE"     \
 110         "\002NO_6_BYTE"         \
 111         "\003NO_PREVENT"        \
 112         "\0044K"                \
 113         "\005NO_RC16"
 114
 115 typedef enum {
 116         DA_CCB_PROBE_RC         = 0x01,
 117         DA_CCB_PROBE_RC16       = 0x02,
 118         DA_CCB_PROBE_LBP        = 0x03,
 119         DA_CCB_PROBE_BLK_LIMITS = 0x04,
 120         DA_CCB_PROBE_BDC        = 0x05,
 121         DA_CCB_PROBE_ATA        = 0x06,
 122         DA_CCB_BUFFER_IO        = 0x07,
 123         DA_CCB_DUMP             = 0x0A,
 124         DA_CCB_DELETE           = 0x0B,
 125         DA_CCB_TUR              = 0x0C,
 126         DA_CCB_TYPE_MASK        = 0x0F,
 127         DA_CCB_RETRY_UA         = 0x10
 128 } da_ccb_state;
 129
 130 /*
 131  * Order here is important for method choice
 132  *
 133  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
 134  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
 135  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
 136  * import taking 5mins.
 137  *
 138  */
 139 typedef enum {
 140         DA_DELETE_NONE,
 141         DA_DELETE_DISABLE,
 142         DA_DELETE_ATA_TRIM,
 143         DA_DELETE_UNMAP,
 144         DA_DELETE_WS16,
 145         DA_DELETE_WS10,
 146         DA_DELETE_ZERO,
 147         DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
 148         DA_DELETE_MAX = DA_DELETE_ZERO
 149 } da_delete_methods;
 150
 151 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
 152                               struct bio *bp);
 153 static da_delete_func_t da_delete_trim;
 154 static da_delete_func_t da_delete_unmap;
 155 static da_delete_func_t da_delete_ws;
 156
 157 static const void * da_delete_functions[] = {
 158         NULL,
 159         NULL,
 160         da_delete_trim,
 161         da_delete_unmap,
 162         da_delete_ws,
 163         da_delete_ws,
 164         da_delete_ws
 165 };
 166
 167 static const char *da_delete_method_names[] =
 168     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
 169 static const char *da_delete_method_desc[] =
 170     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
 171       "WRITE SAME(10) with UNMAP", "ZERO" };
 172
 173 /* Offsets into our private area for storing information */
 174 #define ccb_state       ppriv_field0
 175 #define ccb_bp          ppriv_ptr1
 176
 177 struct disk_params {
 178         u_int8_t  heads;
 179         u_int32_t cylinders;
 180         u_int8_t  secs_per_track;
 181         u_int32_t secsize;      /* Number of bytes/sector */
 182         u_int64_t sectors;      /* total number sectors */
 183         u_int     stripesize;
 184         u_int     stripeoffset;
 185 };
 186
 187 #define UNMAP_RANGE_MAX         0xffffffff
 188 #define UNMAP_HEAD_SIZE         8
 189 #define UNMAP_RANGE_SIZE        16
 190 #define UNMAP_MAX_RANGES        2048 /* Protocol Max is 4095 */
 191 #define UNMAP_BUF_SIZE          ((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
 192                                 UNMAP_HEAD_SIZE)
 193
 194 #define WS10_MAX_BLKS           0xffff
 195 #define WS16_MAX_BLKS           0xffffffff
 196 #define ATA_TRIM_MAX_RANGES     ((UNMAP_BUF_SIZE / \
 197         (ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
 198
 199 struct da_softc {
 200         struct   bio_queue_head bio_queue;
 201         struct   bio_queue_head delete_queue;
 202         struct   bio_queue_head delete_run_queue;
 203         LIST_HEAD(, ccb_hdr) pending_ccbs;
 204         int      tur;                   /* TEST UNIT READY should be sent */
 205         int      refcount;              /* Active xpt_action() calls */
 206         da_state state;
 207         da_flags flags;
 208         da_quirks quirks;
 209         int      sort_io_queue;
 210         int      minimum_cmd_size;
 211         int      error_inject;
 212         int      trim_max_ranges;
 213         int      delete_running;
 214         int      delete_available;      /* Delete methods possibly available */
 215         u_int    maxio;
 216         uint32_t                unmap_max_ranges;
 217         uint32_t                unmap_max_lba; /* Max LBAs in UNMAP req */
 218         uint64_t                ws_max_blks;
 219         da_delete_methods       delete_method;
 220         da_delete_func_t        *delete_func;
 221         struct   disk_params params;
 222         struct   disk *disk;
 223         union    ccb saved_ccb;
 224         struct task             sysctl_task;
 225         struct sysctl_ctx_list  sysctl_ctx;
 226         struct sysctl_oid       *sysctl_tree;
 227         struct callout          sendordered_c;
 228         uint64_t wwpn;
 229         uint8_t  unmap_buf[UNMAP_BUF_SIZE];
 230         struct scsi_read_capacity_data_long rcaplong;
 231         struct callout          mediapoll_c;
 232 };
 233
 234 #define dadeleteflag(softc, delete_method, enable)                      \
 235         if (enable) {                                                   \
 236                 softc->delete_available |= (1 << delete_method);        \
 237         } else {                                                        \
 238                 softc->delete_available &= ~(1 << delete_method);       \
 239         }
 240
 241 struct da_quirk_entry {
 242         struct scsi_inquiry_pattern inq_pat;
 243         da_quirks quirks;
 244 };
 245
 246 static const char quantum[] = "QUANTUM";
 247 static const char microp[] = "MICROP";
 248
 249 static struct da_quirk_entry da_quirk_table[] =
 250 {
 251         /* SPI, FC devices */
 252         {
 253                 /*
 254                  * Fujitsu M2513A MO drives.
 255                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 256                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 257                  * Reported by: W.Scholten <whs@xs4all.nl>
 258                  */
 259                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 260                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 261         },
 262         {
 263                 /* See above. */
 264                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 265                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 266         },
 267         {
 268                 /*
 269                  * This particular Fujitsu drive doesn't like the
 270                  * synchronize cache command.
 271                  * Reported by: Tom Jackson <toj@gorilla.net>
 272                  */
 273                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 274                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 275         },
 276         {
 277                 /*
 278                  * This drive doesn't like the synchronize cache command
 279                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 280                  * in NetBSD PR kern/6027, August 24, 1998.
 281                  */
 282                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 283                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 284         },
 285         {
 286                 /*
 287                  * This drive doesn't like the synchronize cache command
 288                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 289                  * (PR 8882).
 290                  */
 291                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 292                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 293         },
 294         {
 295                 /*
 296                  * Doesn't like the synchronize cache command.
 297                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 298                  */
 299                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 300                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 301         },
 302         {
 303                 /*
 304                  * Doesn't like the synchronize cache command.
 305                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 306                  */
 307                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 308                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 309         },
 310         {
 311                 /*
 312                  * Doesn't like the synchronize cache command.
 313                  */
 314                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 315                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 316         },
 317         {
 318                 /*
 319                  * Doesn't like the synchronize cache command.
 320                  * Reported by: walter@pelissero.de
 321                  */
 322                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 323                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 324         },
 325         {
 326                 /*
 327                  * Doesn't work correctly with 6 byte reads/writes.
 328                  * Returns illegal request, and points to byte 9 of the
 329                  * 6-byte CDB.
 330                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 331                  */
 332                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 333                 /*quirks*/ DA_Q_NO_6_BYTE
 334         },
 335         {
 336                 /* See above. */
 337                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 338                 /*quirks*/ DA_Q_NO_6_BYTE
 339         },
 340         {
 341                 /*
 342                  * Doesn't like the synchronize cache command.
 343                  * Reported by: walter@pelissero.de
 344                  */
 345                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 346                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 347         },
 348         {
 349                 /*
 350                  * The CISS RAID controllers do not support SYNC_CACHE
 351                  */
 352                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 353                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 354         },
 355         {
 356                 /*
 357                  * The STEC SSDs sometimes hang on UNMAP.
 358                  */
 359                 {T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
 360                 /*quirks*/ DA_Q_NO_UNMAP
 361         },
 362         /* USB mass storage devices supported by umass(4) */
 363         {
 364                 /*
 365                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 366                  * PR: kern/51675
 367                  */
 368                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 369                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 370         },
 371         {
 372                 /*
 373                  * Power Quotient Int. (PQI) USB flash key
 374                  * PR: kern/53067
 375                  */
 376                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 377                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 378         },
 379         {
 380                 /*
 381                  * Creative Nomad MUVO mp3 player (USB)
 382                  * PR: kern/53094
 383                  */
 384                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 385                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 386         },
 387         {
 388                 /*
 389                  * Jungsoft NEXDISK USB flash key
 390                  * PR: kern/54737
 391                  */
 392                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 393                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 394         },
 395         {
 396                 /*
 397                  * FreeDik USB Mini Data Drive
 398                  * PR: kern/54786
 399                  */
 400                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 401                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 402         },
 403         {
 404                 /*
 405                  * Sigmatel USB Flash MP3 Player
 406                  * PR: kern/57046
 407                  */
 408                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 409                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 410         },
 411         {
 412                 /*
 413                  * Neuros USB Digital Audio Computer
 414                  * PR: kern/63645
 415                  */
 416                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 417                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 418         },
 419         {
 420                 /*
 421                  * SEAGRAND NP-900 MP3 Player
 422                  * PR: kern/64563
 423                  */
 424                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 425                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 426         },
 427         {
 428                 /*
 429                  * iRiver iFP MP3 player (with UMS Firmware)
 430                  * PR: kern/54881, i386/63941, kern/66124
 431                  */
 432                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 433                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 434         },
 435         {
 436                 /*
 437                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 438                  * PR: kern/70158
 439                  */
 440                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 441                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 442         },
 443         {
 444                 /*
 445                  * ZICPlay USB MP3 Player with FM
 446                  * PR: kern/75057
 447                  */
 448                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 449                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 450         },
 451         {
 452                 /*
 453                  * TEAC USB floppy mechanisms
 454                  */
 455                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 456                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 457         },
 458         {
 459                 /*
 460                  * Kingston DataTraveler II+ USB Pen-Drive.
 461                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 462                  */
 463                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 464                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 465         },
 466         {
 467                 /*
 468                  * USB DISK Pro PMAP
 469                  * Reported by: jhs
 470                  * PR: usb/96381
 471                  */
 472                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
 473                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 474         },
 475         {
 476                 /*
 477                  * Motorola E398 Mobile Phone (TransFlash memory card).
 478                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 479                  * PR: usb/89889
 480                  */
 481                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 482                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 483         },
 484         {
 485                 /*
 486                  * Qware BeatZkey! Pro
 487                  * PR: usb/79164
 488                  */
 489                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 490                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 491         },
 492         {
 493                 /*
 494                  * Time DPA20B 1GB MP3 Player
 495                  * PR: usb/81846
 496                  */
 497                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 498                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 499         },
 500         {
 501                 /*
 502                  * Samsung USB key 128Mb
 503                  * PR: usb/90081
 504                  */
 505                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 506                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 507         },
 508         {
 509                 /*
 510                  * Kingston DataTraveler 2.0 USB Flash memory.
 511                  * PR: usb/89196
 512                  */
 513                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 514                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 515         },
 516         {
 517                 /*
 518                  * Creative MUVO Slim mp3 player (USB)
 519                  * PR: usb/86131
 520                  */
 521                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 522                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 523                 },
 524         {
 525                 /*
 526                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 527                  * PR: usb/80487
 528                  */
 529                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 530                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 531         },
 532         {
 533                 /*
 534                  * SanDisk Micro Cruzer 128MB
 535                  * PR: usb/75970
 536                  */
 537                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 538                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 539         },
 540         {
 541                 /*
 542                  * TOSHIBA TransMemory USB sticks
 543                  * PR: kern/94660
 544                  */
 545                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 546                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 547         },
 548         {
 549                 /*
 550                  * PNY USB 3.0 Flash Drives
 551                 */
 552                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
 553                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
 554         },
 555         {
 556                 /*
 557                  * PNY USB Flash keys
 558                  * PR: usb/75578, usb/72344, usb/65436
 559                  */
 560                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 561                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 562         },
 563         {
 564                 /*
 565                  * Genesys 6-in-1 Card Reader
 566                  * PR: usb/94647
 567                  */
 568                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 569                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 570         },
 571         {
 572                 /*
 573                  * Rekam Digital CAMERA
 574                  * PR: usb/98713
 575                  */
 576                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 577                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 578         },
 579         {
 580                 /*
 581                  * iRiver H10 MP3 player
 582                  * PR: usb/102547
 583                  */
 584                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 585                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 586         },
 587         {
 588                 /*
 589                  * iRiver U10 MP3 player
 590                  * PR: usb/92306
 591                  */
 592                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 593                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 594         },
 595         {
 596                 /*
 597                  * X-Micro Flash Disk
 598                  * PR: usb/96901
 599                  */
 600                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 601                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 602         },
 603         {
 604                 /*
 605                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 606                  * PR: usb/96546
 607                  */
 608                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 609                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 610         },
 611         {
 612                 /*
 613                  * Denver MP3 player
 614                  * PR: usb/107101
 615                  */
 616                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 617                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 618         },
 619         {
 620                 /*
 621                  * Philips USB Key Audio KEY013
 622                  * PR: usb/68412
 623                  */
 624                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 625                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 626         },
 627         {
 628                 /*
 629                  * JNC MP3 Player
 630                  * PR: usb/94439
 631                  */
 632                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 633                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 634         },
 635         {
 636                 /*
 637                  * SAMSUNG MP0402H
 638                  * PR: usb/108427
 639                  */
 640                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 641                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 642         },
 643         {
 644                 /*
 645                  * I/O Magic USB flash - Giga Bank
 646                  * PR: usb/108810
 647                  */
 648                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 649                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 650         },
 651         {
 652                 /*
 653                  * JoyFly 128mb USB Flash Drive
 654                  * PR: 96133
 655                  */
 656                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 657                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 658         },
 659         {
 660                 /*
 661                  * ChipsBnk usb stick
 662                  * PR: 103702
 663                  */
 664                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 665                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 666         },
 667         {
 668                 /*
 669                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 670                  * PR: 129858
 671                  */
 672                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 673                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 674         },
 675         {
 676                 /*
 677                  * Samsung YP-U3 mp3-player
 678                  * PR: 125398
 679                  */
 680                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 681                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 682         },
 683         {
 684                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 685                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 686         },
 687         {
 688                 /*
 689                  * Sony Cyber-Shot DSC cameras
 690                  * PR: usb/137035
 691                  */
 692                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 693                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 694         },
 695         {
 696                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
 697                  "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
 698         },
 699         {
 700                 /* At least several Transcent USB sticks lie on RC16. */
 701                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
 702                  "*"}, /*quirks*/ DA_Q_NO_RC16
 703         },
 704         /* ATA/SATA devices over SAS/USB/... */
 705         {
 706                 /* Hitachi Advanced Format (4k) drives */
 707                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 708                 /*quirks*/DA_Q_4K
 709         },
 710         {
 711                 /* Samsung Advanced Format (4k) drives */
 712                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 713                 /*quirks*/DA_Q_4K
 714         },
 715         {
 716                 /* Samsung Advanced Format (4k) drives */
 717                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 718                 /*quirks*/DA_Q_4K
 719         },
 720         {
 721                 /* Samsung Advanced Format (4k) drives */
 722                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 723                 /*quirks*/DA_Q_4K
 724         },
 725         {
 726                 /* Samsung Advanced Format (4k) drives */
 727                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 728                 /*quirks*/DA_Q_4K
 729         },
 730         {
 731                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 732                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 733                 /*quirks*/DA_Q_4K
 734         },
 735         {
 736                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 737                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 738                 /*quirks*/DA_Q_4K
 739         },
 740         {
 741                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 742                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 743                 /*quirks*/DA_Q_4K
 744         },
 745         {
 746                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 747                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 748                 /*quirks*/DA_Q_4K
 749         },
 750         {
 751                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 752                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 753                 /*quirks*/DA_Q_4K
 754         },
 755         {
 756                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 757                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 758                 /*quirks*/DA_Q_4K
 759         },
 760         {
 761                 /* Seagate Momentus Advanced Format (4k) drives */
 762                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 763                 /*quirks*/DA_Q_4K
 764         },
 765         {
 766                 /* Seagate Momentus Advanced Format (4k) drives */
 767                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 768                 /*quirks*/DA_Q_4K
 769         },
 770         {
 771                 /* Seagate Momentus Advanced Format (4k) drives */
 772                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 773                 /*quirks*/DA_Q_4K
 774         },
 775         {
 776                 /* Seagate Momentus Advanced Format (4k) drives */
 777                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 778                 /*quirks*/DA_Q_4K
 779         },
 780         {
 781                 /* Seagate Momentus Advanced Format (4k) drives */
 782                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 783                 /*quirks*/DA_Q_4K
 784         },
 785         {
 786                 /* Seagate Momentus Advanced Format (4k) drives */
 787                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 788                 /*quirks*/DA_Q_4K
 789         },
 790         {
 791                 /* Seagate Momentus Advanced Format (4k) drives */
 792                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 793                 /*quirks*/DA_Q_4K
 794         },
 795         {
 796                 /* Seagate Momentus Advanced Format (4k) drives */
 797                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 798                 /*quirks*/DA_Q_4K
 799         },
 800         {
 801                 /* Seagate Momentus Advanced Format (4k) drives */
 802                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 803                 /*quirks*/DA_Q_4K
 804         },
 805         {
 806                 /* Seagate Momentus Advanced Format (4k) drives */
 807                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 808                 /*quirks*/DA_Q_4K
 809         },
 810         {
 811                 /* Seagate Momentus Advanced Format (4k) drives */
 812                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 813                 /*quirks*/DA_Q_4K
 814         },
 815         {
 816                 /* Seagate Momentus Advanced Format (4k) drives */
 817                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 818                 /*quirks*/DA_Q_4K
 819         },
 820         {
 821                 /* Seagate Momentus Advanced Format (4k) drives */
 822                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 823                 /*quirks*/DA_Q_4K
 824         },
 825         {
 826                 /* Seagate Momentus Advanced Format (4k) drives */
 827                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 828                 /*quirks*/DA_Q_4K
 829         },
 830         {
 831                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 832                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 833                 /*quirks*/DA_Q_4K
 834         },
 835         {
 836                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 837                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 838                 /*quirks*/DA_Q_4K
 839         },
 840         {
 841                 /* WDC Caviar Green Advanced Format (4k) drives */
 842                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 843                 /*quirks*/DA_Q_4K
 844         },
 845         {
 846                 /* WDC Caviar Green Advanced Format (4k) drives */
 847                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 848                 /*quirks*/DA_Q_4K
 849         },
 850         {
 851                 /* WDC Caviar Green Advanced Format (4k) drives */
 852                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 853                 /*quirks*/DA_Q_4K
 854         },
 855         {
 856                 /* WDC Caviar Green Advanced Format (4k) drives */
 857                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 858                 /*quirks*/DA_Q_4K
 859         },
 860         {
 861                 /* WDC Caviar Green Advanced Format (4k) drives */
 862                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 863                 /*quirks*/DA_Q_4K
 864         },
 865         {
 866                 /* WDC Caviar Green Advanced Format (4k) drives */
 867                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 868                 /*quirks*/DA_Q_4K
 869         },
 870         {
 871                 /* WDC Caviar Green Advanced Format (4k) drives */
 872                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 873                 /*quirks*/DA_Q_4K
 874         },
 875         {
 876                 /* WDC Caviar Green Advanced Format (4k) drives */
 877                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 878                 /*quirks*/DA_Q_4K
 879         },
 880         {
 881                 /* WDC Scorpio Black Advanced Format (4k) drives */
 882                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 883                 /*quirks*/DA_Q_4K
 884         },
 885         {
 886                 /* WDC Scorpio Black Advanced Format (4k) drives */
 887                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 888                 /*quirks*/DA_Q_4K
 889         },
 890         {
 891                 /* WDC Scorpio Black Advanced Format (4k) drives */
 892                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 893                 /*quirks*/DA_Q_4K
 894         },
 895         {
 896                 /* WDC Scorpio Black Advanced Format (4k) drives */
 897                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 898                 /*quirks*/DA_Q_4K
 899         },
 900         {
 901                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 902                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 903                 /*quirks*/DA_Q_4K
 904         },
 905         {
 906                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 907                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 908                 /*quirks*/DA_Q_4K
 909         },
 910         {
 911                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 912                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 913                 /*quirks*/DA_Q_4K
 914         },
 915         {
 916                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 917                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 918                 /*quirks*/DA_Q_4K
 919         },
 920         {
 921                 /*
 922                  * Olympus FE-210 camera
 923                  */
 924                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 925                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 926         },
 927         {
 928                 /*
 929                  * LG UP3S MP3 player
 930                  */
 931                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 932                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 933         },
 934         {
 935                 /*
 936                  * Laser MP3-2GA13 MP3 player
 937                  */
 938                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 939                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 940         },
 941         {
 942                 /*
 943                  * LaCie external 250GB Hard drive des by Porsche
 944                  * Submitted by: Ben Stuyts <ben@altesco.nl>
 945                  * PR: 121474
 946                  */
 947                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
 948                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 949         },
 950         /* SATA SSDs */
 951         {
 952                 /*
 953                  * Corsair Force 2 SSDs
 954                  * 4k optimised & trim only works in 4k requests + 4k aligned
 955                  */
 956                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
 957                 /*quirks*/DA_Q_4K
 958         },
 959         {
 960                 /*
 961                  * Corsair Force 3 SSDs
 962                  * 4k optimised & trim only works in 4k requests + 4k aligned
 963                  */
 964                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
 965                 /*quirks*/DA_Q_4K
 966         },
 967         {
 968                 /*
 969                  * Corsair Neutron GTX SSDs
 970                  * 4k optimised & trim only works in 4k requests + 4k aligned
 971                  */
 972                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
 973                 /*quirks*/DA_Q_4K
 974         },
 975         {
 976                 /*
 977                  * Corsair Force GT & GS SSDs
 978                  * 4k optimised & trim only works in 4k requests + 4k aligned
 979                  */
 980                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
 981                 /*quirks*/DA_Q_4K
 982         },
 983         {
 984                 /*
 985                  * Crucial M4 SSDs
 986                  * 4k optimised & trim only works in 4k requests + 4k aligned
 987                  */
 988                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
 989                 /*quirks*/DA_Q_4K
 990         },
 991         {
 992                 /*
 993                  * Crucial RealSSD C300 SSDs
 994                  * 4k optimised
 995                  */
 996                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
 997                 "*" }, /*quirks*/DA_Q_4K
 998         },
 999         {
1000                 /*
1001                  * Intel 320 Series SSDs
1002                  * 4k optimised & trim only works in 4k requests + 4k aligned
1003                  */
1004                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1005                 /*quirks*/DA_Q_4K
1006         },
1007         {
1008                 /*
1009                  * Intel 330 Series SSDs
1010                  * 4k optimised & trim only works in 4k requests + 4k aligned
1011                  */
1012                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1013                 /*quirks*/DA_Q_4K
1014         },
1015         {
1016                 /*
1017                  * Intel 510 Series SSDs
1018                  * 4k optimised & trim only works in 4k requests + 4k aligned
1019                  */
1020                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1021                 /*quirks*/DA_Q_4K
1022         },
1023         {
1024                 /*
1025                  * Intel 520 Series SSDs
1026                  * 4k optimised & trim only works in 4k requests + 4k aligned
1027                  */
1028                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1029                 /*quirks*/DA_Q_4K
1030         },
1031         {
1032                 /*
1033                  * Intel X25-M Series SSDs
1034                  * 4k optimised & trim only works in 4k requests + 4k aligned
1035                  */
1036                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1037                 /*quirks*/DA_Q_4K
1038         },
1039         {
1040                 /*
1041                  * Kingston E100 Series SSDs
1042                  * 4k optimised & trim only works in 4k requests + 4k aligned
1043                  */
1044                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1045                 /*quirks*/DA_Q_4K
1046         },
1047         {
1048                 /*
1049                  * Kingston HyperX 3k SSDs
1050                  * 4k optimised & trim only works in 4k requests + 4k aligned
1051                  */
1052                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1053                 /*quirks*/DA_Q_4K
1054         },
1055         {
1056                 /*
1057                  * Marvell SSDs (entry taken from OpenSolaris)
1058                  * 4k optimised & trim only works in 4k requests + 4k aligned
1059                  */
1060                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1061                 /*quirks*/DA_Q_4K
1062         },
1063         {
1064                 /*
1065                  * OCZ Agility 2 SSDs
1066                  * 4k optimised & trim only works in 4k requests + 4k aligned
1067                  */
1068                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1069                 /*quirks*/DA_Q_4K
1070         },
1071         {
1072                 /*
1073                  * OCZ Agility 3 SSDs
1074                  * 4k optimised & trim only works in 4k requests + 4k aligned
1075                  */
1076                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1077                 /*quirks*/DA_Q_4K
1078         },
1079         {
1080                 /*
1081                  * OCZ Deneva R Series SSDs
1082                  * 4k optimised & trim only works in 4k requests + 4k aligned
1083                  */
1084                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1085                 /*quirks*/DA_Q_4K
1086         },
1087         {
1088                 /*
1089                  * OCZ Vertex 2 SSDs (inc pro series)
1090                  * 4k optimised & trim only works in 4k requests + 4k aligned
1091                  */
1092                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1093                 /*quirks*/DA_Q_4K
1094         },
1095         {
1096                 /*
1097                  * OCZ Vertex 3 SSDs
1098                  * 4k optimised & trim only works in 4k requests + 4k aligned
1099                  */
1100                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1101                 /*quirks*/DA_Q_4K
1102         },
1103         {
1104                 /*
1105                  * OCZ Vertex 4 SSDs
1106                  * 4k optimised & trim only works in 4k requests + 4k aligned
1107                  */
1108                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1109                 /*quirks*/DA_Q_4K
1110         },
1111         {
1112                 /*
1113                  * Samsung 830 Series SSDs
1114                  * 4k optimised & trim only works in 4k requests + 4k aligned
1115                  */
1116                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1117                 /*quirks*/DA_Q_4K
1118         },
1119         {
1120                 /*
1121                  * Samsung 840 SSDs
1122                  * 4k optimised & trim only works in 4k requests + 4k aligned
1123                  */
1124                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1125                 /*quirks*/DA_Q_4K
1126         },
1127         {
1128                 /*
1129                  * Samsung 843T Series SSDs
1130                  * 4k optimised
1131                  */
1132                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7WD*", "*" },
1133                 /*quirks*/DA_Q_4K
1134         },
1135         {
1136                 /*
1137                  * Samsung 850 SSDs
1138                  * 4k optimised & trim only works in 4k requests + 4k aligned
1139                  */
1140                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1141                 /*quirks*/DA_Q_4K
1142         },
1143         {
1144                 /*
1145                  * Samsung PM853T Series SSDs
1146                  * 4k optimised
1147                  */
1148                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7GE*", "*" },
1149                 /*quirks*/DA_Q_4K
1150         },
1151         {
1152                 /*
1153                  * SuperTalent TeraDrive CT SSDs
1154                  * 4k optimised & trim only works in 4k requests + 4k aligned
1155                  */
1156                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1157                 /*quirks*/DA_Q_4K
1158         },
1159         {
1160                 /*
1161                  * XceedIOPS SATA SSDs
1162                  * 4k optimised
1163                  */
1164                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1165                 /*quirks*/DA_Q_4K
1166         },
1167 };
1168
1169 static  disk_strategy_t dastrategy;
1170 static  dumper_t        dadump;
1171 static  periph_init_t   dainit;
1172 static  void            daasync(void *callback_arg, u_int32_t code,
1173                                 struct cam_path *path, void *arg);
1174 static  void            dasysctlinit(void *context, int pending);
1175 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1176 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1177 static  int             dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1178 static  void            dadeletemethodset(struct da_softc *softc,
1179                                           da_delete_methods delete_method);
1180 static  off_t           dadeletemaxsize(struct da_softc *softc,
1181                                         da_delete_methods delete_method);
1182 static  void            dadeletemethodchoose(struct da_softc *softc,
1183                                              da_delete_methods default_method);
1184 static  void            daprobedone(struct cam_periph *periph, union ccb *ccb);
1185
1186 static  periph_ctor_t   daregister;
1187 static  periph_dtor_t   dacleanup;
1188 static  periph_start_t  dastart;
1189 static  periph_oninv_t  daoninvalidate;
1190 static  void            dadone(struct cam_periph *periph,
1191                                union ccb *done_ccb);
1192 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
1193                                 u_int32_t sense_flags);
1194 static void             daprevent(struct cam_periph *periph, int action);
1195 static void             dareprobe(struct cam_periph *periph);
1196 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
1197                                   uint64_t maxsector,
1198                                   struct scsi_read_capacity_data_long *rcaplong,
1199                                   size_t rcap_size);
1200 static timeout_t        dasendorderedtag;
1201 static void             dashutdown(void *arg, int howto);
1202 static timeout_t        damediapoll;
1203
1204 #ifndef DA_DEFAULT_POLL_PERIOD
1205 #define DA_DEFAULT_POLL_PERIOD  3
1206 #endif
1207
1208 #ifndef DA_DEFAULT_TIMEOUT
1209 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
1210 #endif
1211
1212 #ifndef DA_DEFAULT_RETRY
1213 #define DA_DEFAULT_RETRY        4
1214 #endif
1215
1216 #ifndef DA_DEFAULT_SEND_ORDERED
1217 #define DA_DEFAULT_SEND_ORDERED 1
1218 #endif
1219
1220 #define DA_SIO (softc->sort_io_queue >= 0 ? \
1221     softc->sort_io_queue : cam_sort_io_queues)
1222
1223 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1224 static int da_retry_count = DA_DEFAULT_RETRY;
1225 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1226 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1227
1228 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1229             "CAM Direct Access Disk driver");
1230 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
1231            &da_poll_period, 0, "Media polling period in seconds");
1232 TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
1233 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
1234            &da_retry_count, 0, "Normal I/O retry count");
1235 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
1236 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
1237            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1238 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
1239 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
1240            &da_send_ordered, 0, "Send Ordered Tags");
1241 TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
1242
1243 /*
1244  * DA_ORDEREDTAG_INTERVAL determines how often, relative
1245  * to the default timeout, we check to see whether an ordered
1246  * tagged transaction is appropriate to prevent simple tag
1247  * starvation.  Since we'd like to ensure that there is at least
1248  * 1/2 of the timeout length left for a starved transaction to
1249  * complete after we've sent an ordered tag, we must poll at least
1250  * four times in every timeout period.  This takes care of the worst
1251  * case where a starved transaction starts during an interval that
1252  * meets the requirement "don't send an ordered tag" test so it takes
1253  * us two intervals to determine that a tag must be sent.
1254  */
1255 #ifndef DA_ORDEREDTAG_INTERVAL
1256 #define DA_ORDEREDTAG_INTERVAL 4
1257 #endif
1258
1259 static struct periph_driver dadriver =
1260 {
1261         dainit, "da",
1262         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1263 };
1264
1265 PERIPHDRIVER_DECLARE(da, dadriver);
1266
1267 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1268
1269 static int
1270 daopen(struct disk *dp)
1271 {
1272         struct cam_periph *periph;
1273         struct da_softc *softc;
1274         int error;
1275
1276         periph = (struct cam_periph *)dp->d_drv1;
1277         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1278                 return (ENXIO);
1279         }
1280
1281         cam_periph_lock(periph);
1282         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1283                 cam_periph_unlock(periph);
1284                 cam_periph_release(periph);
1285                 return (error);
1286         }
1287
1288         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1289             ("daopen\n"));
1290
1291         softc = (struct da_softc *)periph->softc;
1292         dareprobe(periph);
1293
1294         /* Wait for the disk size update.  */
1295         error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1296             "dareprobe", 0);
1297         if (error != 0)
1298                 xpt_print(periph->path, "unable to retrieve capacity data\n");
1299
1300         if (periph->flags & CAM_PERIPH_INVALID)
1301                 error = ENXIO;
1302
1303         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1304             (softc->quirks & DA_Q_NO_PREVENT) == 0)
1305                 daprevent(periph, PR_PREVENT);
1306
1307         if (error == 0) {
1308                 softc->flags &= ~DA_FLAG_PACK_INVALID;
1309                 softc->flags |= DA_FLAG_OPEN;
1310         }
1311
1312         cam_periph_unhold(periph);
1313         cam_periph_unlock(periph);
1314
1315         if (error != 0)
1316                 cam_periph_release(periph);
1317
1318         return (error);
1319 }
1320
1321 static int
1322 daclose(struct disk *dp)
1323 {
1324         struct  cam_periph *periph;
1325         struct  da_softc *softc;
1326         union   ccb *ccb;
1327         int error;
1328
1329         periph = (struct cam_periph *)dp->d_drv1;
1330         softc = (struct da_softc *)periph->softc;
1331         cam_periph_lock(periph);
1332         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1333             ("daclose\n"));
1334
1335         if (cam_periph_hold(periph, PRIBIO) == 0) {
1336
1337                 /* Flush disk cache. */
1338                 if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1339                     (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1340                     (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1341                         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1342                         scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1343                             /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1344                             /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1345                             5 * 60 * 1000);
1346                         error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1347                             /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1348                             softc->disk->d_devstat);
1349                         if (error == 0)
1350                                 softc->flags &= ~DA_FLAG_DIRTY;
1351                         xpt_release_ccb(ccb);
1352                 }
1353
1354                 /* Allow medium removal. */
1355                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1356                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
1357                         daprevent(periph, PR_ALLOW);
1358
1359                 cam_periph_unhold(periph);
1360         }
1361
1362         /*
1363          * If we've got removeable media, mark the blocksize as
1364          * unavailable, since it could change when new media is
1365          * inserted.
1366          */
1367         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1368                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1369
1370         softc->flags &= ~DA_FLAG_OPEN;
1371         while (softc->refcount != 0)
1372                 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1373         cam_periph_unlock(periph);
1374         cam_periph_release(periph);
1375         return (0);
1376 }
1377
1378 static void
1379 daschedule(struct cam_periph *periph)
1380 {
1381         struct da_softc *softc = (struct da_softc *)periph->softc;
1382
1383         if (softc->state != DA_STATE_NORMAL)
1384                 return;
1385
1386         /* Check if we have more work to do. */
1387         if (bioq_first(&softc->bio_queue) ||
1388             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1389             softc->tur) {
1390                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1391         }
1392 }
1393
1394 /*
1395  * Actually translate the requested transfer into one the physical driver
1396  * can understand.  The transfer is described by a buf and will include
1397  * only one physical transfer.
1398  */
1399 static void
1400 dastrategy(struct bio *bp)
1401 {
1402         struct cam_periph *periph;
1403         struct da_softc *softc;
1404
1405         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1406         softc = (struct da_softc *)periph->softc;
1407
1408         cam_periph_lock(periph);
1409
1410         /*
1411          * If the device has been made invalid, error out
1412          */
1413         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1414                 cam_periph_unlock(periph);
1415                 biofinish(bp, NULL, ENXIO);
1416                 return;
1417         }
1418
1419         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1420
1421         /*
1422          * Place it in the queue of disk activities for this disk
1423          */
1424         if (bp->bio_cmd == BIO_DELETE) {
1425                 bioq_disksort(&softc->delete_queue, bp);
1426         } else if (DA_SIO) {
1427                 bioq_disksort(&softc->bio_queue, bp);
1428         } else {
1429                 bioq_insert_tail(&softc->bio_queue, bp);
1430         }
1431
1432         /*
1433          * Schedule ourselves for performing the work.
1434          */
1435         daschedule(periph);
1436         cam_periph_unlock(periph);
1437
1438         return;
1439 }
1440
1441 static int
1442 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1443 {
1444         struct      cam_periph *periph;
1445         struct      da_softc *softc;
1446         u_int       secsize;
1447         struct      ccb_scsiio csio;
1448         struct      disk *dp;
1449         int         error = 0;
1450
1451         dp = arg;
1452         periph = dp->d_drv1;
1453         softc = (struct da_softc *)periph->softc;
1454         cam_periph_lock(periph);
1455         secsize = softc->params.secsize;
1456
1457         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1458                 cam_periph_unlock(periph);
1459                 return (ENXIO);
1460         }
1461
1462         if (length > 0) {
1463                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1464                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1465                 scsi_read_write(&csio,
1466                                 /*retries*/0,
1467                                 dadone,
1468                                 MSG_ORDERED_Q_TAG,
1469                                 /*read*/SCSI_RW_WRITE,
1470                                 /*byte2*/0,
1471                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1472                                 offset / secsize,
1473                                 length / secsize,
1474                                 /*data_ptr*/(u_int8_t *) virtual,
1475                                 /*dxfer_len*/length,
1476                                 /*sense_len*/SSD_FULL_SIZE,
1477                                 da_default_timeout * 1000);
1478                 xpt_polled_action((union ccb *)&csio);
1479
1480                 error = cam_periph_error((union ccb *)&csio,
1481                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1482                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1483                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1484                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1485                 if (error != 0)
1486                         printf("Aborting dump due to I/O error.\n");
1487                 cam_periph_unlock(periph);
1488                 return (error);
1489         }
1490
1491         /*
1492          * Sync the disk cache contents to the physical media.
1493          */
1494         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1495
1496                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1497                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1498                 scsi_synchronize_cache(&csio,
1499                                        /*retries*/0,
1500                                        /*cbfcnp*/dadone,
1501                                        MSG_SIMPLE_Q_TAG,
1502                                        /*begin_lba*/0,/* Cover the whole disk */
1503                                        /*lb_count*/0,
1504                                        SSD_FULL_SIZE,
1505                                        5 * 60 * 1000);
1506                 xpt_polled_action((union ccb *)&csio);
1507
1508                 error = cam_periph_error((union ccb *)&csio,
1509                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1510                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1511                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1512                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1513                 if (error != 0)
1514                         xpt_print(periph->path, "Synchronize cache failed\n");
1515         }
1516         cam_periph_unlock(periph);
1517         return (error);
1518 }
1519
1520 static int
1521 dagetattr(struct bio *bp)
1522 {
1523         int ret;
1524         struct cam_periph *periph;
1525
1526         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1527         cam_periph_lock(periph);
1528         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1529             periph->path);
1530         cam_periph_unlock(periph);
1531         if (ret == 0)
1532                 bp->bio_completed = bp->bio_length;
1533         return ret;
1534 }
1535
1536 static void
1537 dainit(void)
1538 {
1539         cam_status status;
1540
1541         /*
1542          * Install a global async callback.  This callback will
1543          * receive async callbacks like "new device found".
1544          */
1545         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1546
1547         if (status != CAM_REQ_CMP) {
1548                 printf("da: Failed to attach master async callback "
1549                        "due to status 0x%x!\n", status);
1550         } else if (da_send_ordered) {
1551
1552                 /* Register our shutdown event handler */
1553                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1554                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1555                     printf("dainit: shutdown event registration failed!\n");
1556         }
1557 }
1558
1559 /*
1560  * Callback from GEOM, called when it has finished cleaning up its
1561  * resources.
1562  */
1563 static void
1564 dadiskgonecb(struct disk *dp)
1565 {
1566         struct cam_periph *periph;
1567
1568         periph = (struct cam_periph *)dp->d_drv1;
1569         cam_periph_release(periph);
1570 }
1571
1572 static void
1573 daoninvalidate(struct cam_periph *periph)
1574 {
1575         struct da_softc *softc;
1576
1577         softc = (struct da_softc *)periph->softc;
1578
1579         /*
1580          * De-register any async callbacks.
1581          */
1582         xpt_register_async(0, daasync, periph, periph->path);
1583
1584         softc->flags |= DA_FLAG_PACK_INVALID;
1585
1586         /*
1587          * Return all queued I/O with ENXIO.
1588          * XXX Handle any transactions queued to the card
1589          *     with XPT_ABORT_CCB.
1590          */
1591         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1592         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1593
1594         /*
1595          * Tell GEOM that we've gone away, we'll get a callback when it is
1596          * done cleaning up its resources.
1597          */
1598         disk_gone(softc->disk);
1599 }
1600
1601 static void
1602 dacleanup(struct cam_periph *periph)
1603 {
1604         struct da_softc *softc;
1605
1606         softc = (struct da_softc *)periph->softc;
1607
1608         cam_periph_unlock(periph);
1609
1610         /*
1611          * If we can't free the sysctl tree, oh well...
1612          */
1613         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1614             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1615                 xpt_print(periph->path, "can't remove sysctl context\n");
1616         }
1617
1618         callout_drain(&softc->mediapoll_c);
1619         disk_destroy(softc->disk);
1620         callout_drain(&softc->sendordered_c);
1621         free(softc, M_DEVBUF);
1622         cam_periph_lock(periph);
1623 }
1624
1625 static void
1626 daasync(void *callback_arg, u_int32_t code,
1627         struct cam_path *path, void *arg)
1628 {
1629         struct cam_periph *periph;
1630         struct da_softc *softc;
1631
1632         periph = (struct cam_periph *)callback_arg;
1633         switch (code) {
1634         case AC_FOUND_DEVICE:
1635         {
1636                 struct ccb_getdev *cgd;
1637                 cam_status status;
1638
1639                 cgd = (struct ccb_getdev *)arg;
1640                 if (cgd == NULL)
1641                         break;
1642
1643                 if (cgd->protocol != PROTO_SCSI)
1644                         break;
1645
1646                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1647                     && SID_TYPE(&cgd->inq_data) != T_RBC
1648                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1649                         break;
1650
1651                 /*
1652                  * Allocate a peripheral instance for
1653                  * this device and start the probe
1654                  * process.
1655                  */
1656                 status = cam_periph_alloc(daregister, daoninvalidate,
1657                                           dacleanup, dastart,
1658                                           "da", CAM_PERIPH_BIO,
1659                                           path, daasync,
1660                                           AC_FOUND_DEVICE, cgd);
1661
1662                 if (status != CAM_REQ_CMP
1663                  && status != CAM_REQ_INPROG)
1664                         printf("daasync: Unable to attach to new device "
1665                                 "due to status 0x%x\n", status);
1666                 return;
1667         }
1668         case AC_ADVINFO_CHANGED:
1669         {
1670                 uintptr_t buftype;
1671
1672                 buftype = (uintptr_t)arg;
1673                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1674                         struct da_softc *softc;
1675
1676                         softc = periph->softc;
1677                         disk_attr_changed(softc->disk, "GEOM::physpath",
1678                                           M_NOWAIT);
1679                 }
1680                 break;
1681         }
1682         case AC_UNIT_ATTENTION:
1683         {
1684                 union ccb *ccb;
1685                 int error_code, sense_key, asc, ascq;
1686
1687                 softc = (struct da_softc *)periph->softc;
1688                 ccb = (union ccb *)arg;
1689
1690                 /*
1691                  * Handle all UNIT ATTENTIONs except our own,
1692                  * as they will be handled by daerror().
1693                  */
1694                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1695                     scsi_extract_sense_ccb(ccb,
1696                      &error_code, &sense_key, &asc, &ascq)) {
1697                         if (asc == 0x2A && ascq == 0x09) {
1698                                 xpt_print(ccb->ccb_h.path,
1699                                     "Capacity data has changed\n");
1700                                 softc->flags &= ~DA_FLAG_PROBED;
1701                                 dareprobe(periph);
1702                         } else if (asc == 0x28 && ascq == 0x00) {
1703                                 softc->flags &= ~DA_FLAG_PROBED;
1704                                 disk_media_changed(softc->disk, M_NOWAIT);
1705                         } else if (asc == 0x3F && ascq == 0x03) {
1706                                 xpt_print(ccb->ccb_h.path,
1707                                     "INQUIRY data has changed\n");
1708                                 softc->flags &= ~DA_FLAG_PROBED;
1709                                 dareprobe(periph);
1710                         }
1711                 }
1712                 cam_periph_async(periph, code, path, arg);
1713                 break;
1714         }
1715         case AC_SCSI_AEN:
1716                 softc = (struct da_softc *)periph->softc;
1717                 if (!softc->tur) {
1718                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1719                                 softc->tur = 1;
1720                                 daschedule(periph);
1721                         }
1722                 }
1723                 /* FALLTHROUGH */
1724         case AC_SENT_BDR:
1725         case AC_BUS_RESET:
1726         {
1727                 struct ccb_hdr *ccbh;
1728
1729                 softc = (struct da_softc *)periph->softc;
1730                 /*
1731                  * Don't fail on the expected unit attention
1732                  * that will occur.
1733                  */
1734                 softc->flags |= DA_FLAG_RETRY_UA;
1735                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1736                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1737                 break;
1738         }
1739         default:
1740                 break;
1741         }
1742         cam_periph_async(periph, code, path, arg);
1743 }
1744
1745 static void
1746 dasysctlinit(void *context, int pending)
1747 {
1748         struct cam_periph *periph;
1749         struct da_softc *softc;
1750         char tmpstr[80], tmpstr2[80];
1751         struct ccb_trans_settings cts;
1752
1753         periph = (struct cam_periph *)context;
1754         /*
1755          * periph was held for us when this task was enqueued
1756          */
1757         if (periph->flags & CAM_PERIPH_INVALID) {
1758                 cam_periph_release(periph);
1759                 return;
1760         }
1761
1762         softc = (struct da_softc *)periph->softc;
1763         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1764         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1765
1766         sysctl_ctx_init(&softc->sysctl_ctx);
1767         softc->flags |= DA_FLAG_SCTX_INIT;
1768         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1769                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1770                 CTLFLAG_RD, 0, tmpstr);
1771         if (softc->sysctl_tree == NULL) {
1772                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1773                 cam_periph_release(periph);
1774                 return;
1775         }
1776
1777         /*
1778          * Now register the sysctl handler, so the user can change the value on
1779          * the fly.
1780          */
1781         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1782                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1783                 softc, 0, dadeletemethodsysctl, "A",
1784                 "BIO_DELETE execution method");
1785         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1786                 OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1787                 softc, 0, dadeletemaxsysctl, "Q",
1788                 "Maximum BIO_DELETE size");
1789         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1790                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1791                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1792                 "Minimum CDB size");
1793         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1794                 OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1795                 "Sort IO queue to try and optimise disk access patterns");
1796
1797         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1798                        SYSCTL_CHILDREN(softc->sysctl_tree),
1799                        OID_AUTO,
1800                        "error_inject",
1801                        CTLFLAG_RW,
1802                        &softc->error_inject,
1803                        0,
1804                        "error_inject leaf");
1805
1806
1807         /*
1808          * Add some addressing info.
1809          */
1810         memset(&cts, 0, sizeof (cts));
1811         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1812         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1813         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1814         cam_periph_lock(periph);
1815         xpt_action((union ccb *)&cts);
1816         cam_periph_unlock(periph);
1817         if (cts.ccb_h.status != CAM_REQ_CMP) {
1818                 cam_periph_release(periph);
1819                 return;
1820         }
1821         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1822                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1823                 if (fc->valid & CTS_FC_VALID_WWPN) {
1824                         softc->wwpn = fc->wwpn;
1825                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1826                             SYSCTL_CHILDREN(softc->sysctl_tree),
1827                             OID_AUTO, "wwpn", CTLFLAG_RD,
1828                             &softc->wwpn, "World Wide Port Name");
1829                 }
1830         }
1831         cam_periph_release(periph);
1832 }
1833
1834 static int
1835 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1836 {
1837         int error;
1838         uint64_t value;
1839         struct da_softc *softc;
1840
1841         softc = (struct da_softc *)arg1;
1842
1843         value = softc->disk->d_delmaxsize;
1844         error = sysctl_handle_64(oidp, &value, 0, req);
1845         if ((error != 0) || (req->newptr == NULL))
1846                 return (error);
1847
1848         /* only accept values smaller than the calculated value */
1849         if (value > dadeletemaxsize(softc, softc->delete_method)) {
1850                 return (EINVAL);
1851         }
1852         softc->disk->d_delmaxsize = value;
1853
1854         return (0);
1855 }
1856
1857 static int
1858 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1859 {
1860         int error, value;
1861
1862         value = *(int *)arg1;
1863
1864         error = sysctl_handle_int(oidp, &value, 0, req);
1865
1866         if ((error != 0)
1867          || (req->newptr == NULL))
1868                 return (error);
1869
1870         /*
1871          * Acceptable values here are 6, 10, 12 or 16.
1872          */
1873         if (value < 6)
1874                 value = 6;
1875         else if ((value > 6)
1876               && (value <= 10))
1877                 value = 10;
1878         else if ((value > 10)
1879               && (value <= 12))
1880                 value = 12;
1881         else if (value > 12)
1882                 value = 16;
1883
1884         *(int *)arg1 = value;
1885
1886         return (0);
1887 }
1888
1889 static void
1890 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1891 {
1892
1893
1894         softc->delete_method = delete_method;
1895         softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1896         softc->delete_func = da_delete_functions[delete_method];
1897
1898         if (softc->delete_method > DA_DELETE_DISABLE)
1899                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
1900         else
1901                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1902 }
1903
1904 static off_t
1905 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1906 {
1907         off_t sectors;
1908
1909         switch(delete_method) {
1910         case DA_DELETE_UNMAP:
1911                 sectors = (off_t)softc->unmap_max_lba;
1912                 break;
1913         case DA_DELETE_ATA_TRIM:
1914                 sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1915                 break;
1916         case DA_DELETE_WS16:
1917                 sectors = omin(softc->ws_max_blks, WS16_MAX_BLKS);
1918                 break;
1919         case DA_DELETE_ZERO:
1920         case DA_DELETE_WS10:
1921                 sectors = omin(softc->ws_max_blks, WS10_MAX_BLKS);
1922                 break;
1923         default:
1924                 return 0;
1925         }
1926
1927         return (off_t)softc->params.secsize *
1928             omin(sectors, softc->params.sectors);
1929 }
1930
1931 static void
1932 daprobedone(struct cam_periph *periph, union ccb *ccb)
1933 {
1934         struct da_softc *softc;
1935
1936         softc = (struct da_softc *)periph->softc;
1937
1938         dadeletemethodchoose(softc, DA_DELETE_NONE);
1939
1940         if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1941                 char buf[80];
1942                 int i, sep;
1943
1944                 snprintf(buf, sizeof(buf), "Delete methods: <");
1945                 sep = 0;
1946                 for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1947                         if (softc->delete_available & (1 << i)) {
1948                                 if (sep) {
1949                                         strlcat(buf, ",", sizeof(buf));
1950                                 } else {
1951                                     sep = 1;
1952                                 }
1953                                 strlcat(buf, da_delete_method_names[i],
1954                                     sizeof(buf));
1955                                 if (i == softc->delete_method) {
1956                                         strlcat(buf, "(*)", sizeof(buf));
1957                                 }
1958                         }
1959                 }
1960                 if (sep == 0) {
1961                         if (softc->delete_method == DA_DELETE_NONE)
1962                                 strlcat(buf, "NONE(*)", sizeof(buf));
1963                         else
1964                                 strlcat(buf, "DISABLED(*)", sizeof(buf));
1965                 }
1966                 strlcat(buf, ">", sizeof(buf));
1967                 printf("%s%d: %s\n", periph->periph_name,
1968                     periph->unit_number, buf);
1969         }
1970
1971         /*
1972          * Since our peripheral may be invalidated by an error
1973          * above or an external event, we must release our CCB
1974          * before releasing the probe lock on the peripheral.
1975          * The peripheral will only go away once the last lock
1976          * is removed, and we need it around for the CCB release
1977          * operation.
1978          */
1979         xpt_release_ccb(ccb);
1980         softc->state = DA_STATE_NORMAL;
1981         softc->flags |= DA_FLAG_PROBED;
1982         daschedule(periph);
1983         wakeup(&softc->disk->d_mediasize);
1984         if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1985                 softc->flags |= DA_FLAG_ANNOUNCED;
1986                 cam_periph_unhold(periph);
1987         } else
1988                 cam_periph_release_locked(periph);
1989 }
1990
1991 static void
1992 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
1993 {
1994         int i, delete_method;
1995
1996         delete_method = default_method;
1997
1998         /*
1999          * Use the pre-defined order to choose the best
2000          * performing delete.
2001          */
2002         for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
2003                 if (softc->delete_available & (1 << i)) {
2004                         dadeletemethodset(softc, i);
2005                         return;
2006                 }
2007         }
2008         dadeletemethodset(softc, delete_method);
2009 }
2010
2011 static int
2012 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2013 {
2014         char buf[16];
2015         const char *p;
2016         struct da_softc *softc;
2017         int i, error, methods, value;
2018
2019         softc = (struct da_softc *)arg1;
2020
2021         value = softc->delete_method;
2022         if (value < 0 || value > DA_DELETE_MAX)
2023                 p = "UNKNOWN";
2024         else
2025                 p = da_delete_method_names[value];
2026         strncpy(buf, p, sizeof(buf));
2027         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2028         if (error != 0 || req->newptr == NULL)
2029                 return (error);
2030         methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2031         for (i = 0; i <= DA_DELETE_MAX; i++) {
2032                 if (!(methods & (1 << i)) ||
2033                     strcmp(buf, da_delete_method_names[i]) != 0)
2034                         continue;
2035                 dadeletemethodset(softc, i);
2036                 return (0);
2037         }
2038         return (EINVAL);
2039 }
2040
2041 static cam_status
2042 daregister(struct cam_periph *periph, void *arg)
2043 {
2044         struct da_softc *softc;
2045         struct ccb_pathinq cpi;
2046         struct ccb_getdev *cgd;
2047         char tmpstr[80];
2048         caddr_t match;
2049
2050         cgd = (struct ccb_getdev *)arg;
2051         if (cgd == NULL) {
2052                 printf("daregister: no getdev CCB, can't register device\n");
2053                 return(CAM_REQ_CMP_ERR);
2054         }
2055
2056         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2057             M_NOWAIT|M_ZERO);
2058
2059         if (softc == NULL) {
2060                 printf("daregister: Unable to probe new device. "
2061                        "Unable to allocate softc\n");
2062                 return(CAM_REQ_CMP_ERR);
2063         }
2064
2065         LIST_INIT(&softc->pending_ccbs);
2066         softc->state = DA_STATE_PROBE_RC;
2067         bioq_init(&softc->bio_queue);
2068         bioq_init(&softc->delete_queue);
2069         bioq_init(&softc->delete_run_queue);
2070         if (SID_IS_REMOVABLE(&cgd->inq_data))
2071                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
2072         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2073         softc->unmap_max_lba = UNMAP_RANGE_MAX;
2074         softc->ws_max_blks = WS16_MAX_BLKS;
2075         softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2076         softc->sort_io_queue = -1;
2077
2078         periph->softc = softc;
2079
2080         /*
2081          * See if this device has any quirks.
2082          */
2083         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2084                                (caddr_t)da_quirk_table,
2085                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2086                                sizeof(*da_quirk_table), scsi_inquiry_match);
2087
2088         if (match != NULL)
2089                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2090         else
2091                 softc->quirks = DA_Q_NONE;
2092
2093         /* Check if the SIM does not want 6 byte commands */
2094         bzero(&cpi, sizeof(cpi));
2095         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2096         cpi.ccb_h.func_code = XPT_PATH_INQ;
2097         xpt_action((union ccb *)&cpi);
2098         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2099                 softc->quirks |= DA_Q_NO_6_BYTE;
2100
2101         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2102
2103         /*
2104          * Take an exclusive refcount on the periph while dastart is called
2105          * to finish the probe.  The reference will be dropped in dadone at
2106          * the end of probe.
2107          */
2108         (void)cam_periph_hold(periph, PRIBIO);
2109
2110         /*
2111          * Schedule a periodic event to occasionally send an
2112          * ordered tag to a device.
2113          */
2114         callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2115         callout_reset(&softc->sendordered_c,
2116             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2117             dasendorderedtag, softc);
2118
2119         cam_periph_unlock(periph);
2120         /*
2121          * RBC devices don't have to support READ(6), only READ(10).
2122          */
2123         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2124                 softc->minimum_cmd_size = 10;
2125         else
2126                 softc->minimum_cmd_size = 6;
2127
2128         /*
2129          * Load the user's default, if any.
2130          */
2131         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2132                  periph->unit_number);
2133         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2134
2135         /*
2136          * 6, 10, 12 and 16 are the currently permissible values.
2137          */
2138         if (softc->minimum_cmd_size < 6)
2139                 softc->minimum_cmd_size = 6;
2140         else if ((softc->minimum_cmd_size > 6)
2141               && (softc->minimum_cmd_size <= 10))
2142                 softc->minimum_cmd_size = 10;
2143         else if ((softc->minimum_cmd_size > 10)
2144               && (softc->minimum_cmd_size <= 12))
2145                 softc->minimum_cmd_size = 12;
2146         else if (softc->minimum_cmd_size > 12)
2147                 softc->minimum_cmd_size = 16;
2148
2149         /* Predict whether device may support READ CAPACITY(16). */
2150         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2151             (softc->quirks & DA_Q_NO_RC16) == 0) {
2152                 softc->flags |= DA_FLAG_CAN_RC16;
2153                 softc->state = DA_STATE_PROBE_RC16;
2154         }
2155
2156         /*
2157          * Register this media as a disk.
2158          */
2159         softc->disk = disk_alloc();
2160         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2161                           periph->unit_number, 0,
2162                           DEVSTAT_BS_UNAVAILABLE,
2163                           SID_TYPE(&cgd->inq_data) |
2164                           XPORT_DEVSTAT_TYPE(cpi.transport),
2165                           DEVSTAT_PRIORITY_DISK);
2166         softc->disk->d_open = daopen;
2167         softc->disk->d_close = daclose;
2168         softc->disk->d_strategy = dastrategy;
2169         softc->disk->d_dump = dadump;
2170         softc->disk->d_getattr = dagetattr;
2171         softc->disk->d_gone = dadiskgonecb;
2172         softc->disk->d_name = "da";
2173         softc->disk->d_drv1 = periph;
2174         if (cpi.maxio == 0)
2175                 softc->maxio = DFLTPHYS;        /* traditional default */
2176         else if (cpi.maxio > MAXPHYS)
2177                 softc->maxio = MAXPHYS;         /* for safety */
2178         else
2179                 softc->maxio = cpi.maxio;
2180         softc->disk->d_maxsize = softc->maxio;
2181         softc->disk->d_unit = periph->unit_number;
2182         softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2183         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2184                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2185         if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2186                 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2187         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2188             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2189         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2190         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2191             cgd->inq_data.product, sizeof(cgd->inq_data.product),
2192             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2193         softc->disk->d_hba_vendor = cpi.hba_vendor;
2194         softc->disk->d_hba_device = cpi.hba_device;
2195         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2196         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2197
2198         /*
2199          * Acquire a reference to the periph before we register with GEOM.
2200          * We'll release this reference once GEOM calls us back (via
2201          * dadiskgonecb()) telling us that our provider has been freed.
2202          */
2203         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2204                 xpt_print(periph->path, "%s: lost periph during "
2205                           "registration!\n", __func__);
2206                 cam_periph_lock(periph);
2207                 return (CAM_REQ_CMP_ERR);
2208         }
2209
2210         disk_create(softc->disk, DISK_VERSION);
2211         cam_periph_lock(periph);
2212
2213         /*
2214          * Add async callbacks for events of interest.
2215          * I don't bother checking if this fails as,
2216          * in most cases, the system will function just
2217          * fine without them and the only alternative
2218          * would be to not attach the device on failure.
2219          */
2220         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2221             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
2222             daasync, periph, periph->path);
2223
2224         /*
2225          * Emit an attribute changed notification just in case
2226          * physical path information arrived before our async
2227          * event handler was registered, but after anyone attaching
2228          * to our disk device polled it.
2229          */
2230         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2231
2232         /*
2233          * Schedule a periodic media polling events.
2234          */
2235         callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2236         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2237             (cgd->inq_flags & SID_AEN) == 0 &&
2238             da_poll_period != 0)
2239                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2240                     damediapoll, periph);
2241
2242         xpt_schedule(periph, CAM_PRIORITY_DEV);
2243
2244         return(CAM_REQ_CMP);
2245 }
2246
2247 static void
2248 dastart(struct cam_periph *periph, union ccb *start_ccb)
2249 {
2250         struct da_softc *softc;
2251
2252         softc = (struct da_softc *)periph->softc;
2253
2254         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2255
2256 skipstate:
2257         switch (softc->state) {
2258         case DA_STATE_NORMAL:
2259         {
2260                 struct bio *bp;
2261                 uint8_t tag_code;
2262
2263                 /* Run BIO_DELETE if not running yet. */
2264                 if (!softc->delete_running &&
2265                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
2266                         if (softc->delete_func != NULL) {
2267                                 softc->delete_func(periph, start_ccb, bp);
2268                                 goto out;
2269                         } else {
2270                                 bioq_flush(&softc->delete_queue, NULL, 0);
2271                                 /* FALLTHROUGH */
2272                         }
2273                 }
2274
2275                 /* Run regular command. */
2276                 bp = bioq_takefirst(&softc->bio_queue);
2277                 if (bp == NULL) {
2278                         if (softc->tur) {
2279                                 softc->tur = 0;
2280                                 scsi_test_unit_ready(&start_ccb->csio,
2281                                      /*retries*/ da_retry_count,
2282                                      dadone,
2283                                      MSG_SIMPLE_Q_TAG,
2284                                      SSD_FULL_SIZE,
2285                                      da_default_timeout * 1000);
2286                                 start_ccb->ccb_h.ccb_bp = NULL;
2287                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2288                                 xpt_action(start_ccb);
2289                         } else
2290                                 xpt_release_ccb(start_ccb);
2291                         break;
2292                 }
2293                 if (softc->tur) {
2294                         softc->tur = 0;
2295                         cam_periph_release_locked(periph);
2296                 }
2297
2298                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2299                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2300                         softc->flags &= ~DA_FLAG_NEED_OTAG;
2301                         softc->flags |= DA_FLAG_WAS_OTAG;
2302                         tag_code = MSG_ORDERED_Q_TAG;
2303                 } else {
2304                         tag_code = MSG_SIMPLE_Q_TAG;
2305                 }
2306
2307                 switch (bp->bio_cmd) {
2308                 case BIO_WRITE:
2309                         softc->flags |= DA_FLAG_DIRTY;
2310                         /* FALLTHROUGH */
2311                 case BIO_READ:
2312                         scsi_read_write(&start_ccb->csio,
2313                                         /*retries*/da_retry_count,
2314                                         /*cbfcnp*/dadone,
2315                                         /*tag_action*/tag_code,
2316                                         /*read_op*/(bp->bio_cmd == BIO_READ ?
2317                                         SCSI_RW_READ : SCSI_RW_WRITE) |
2318                                         ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
2319                                         SCSI_RW_BIO : 0),
2320                                         /*byte2*/0,
2321                                         softc->minimum_cmd_size,
2322                                         /*lba*/bp->bio_pblkno,
2323                                         /*block_count*/bp->bio_bcount /
2324                                         softc->params.secsize,
2325                                         /*data_ptr*/ (bp->bio_flags &
2326                                         BIO_UNMAPPED) != 0 ? (void *)bp :
2327                                         bp->bio_data,
2328                                         /*dxfer_len*/ bp->bio_bcount,
2329                                         /*sense_len*/SSD_FULL_SIZE,
2330                                         da_default_timeout * 1000);
2331                         break;
2332                 case BIO_FLUSH:
2333                         /*
2334                          * BIO_FLUSH doesn't currently communicate
2335                          * range data, so we synchronize the cache
2336                          * over the whole disk.  We also force
2337                          * ordered tag semantics the flush applies
2338                          * to all previously queued I/O.
2339                          */
2340                         scsi_synchronize_cache(&start_ccb->csio,
2341                                                /*retries*/1,
2342                                                /*cbfcnp*/dadone,
2343                                                MSG_ORDERED_Q_TAG,
2344                                                /*begin_lba*/0,
2345                                                /*lb_count*/0,
2346                                                SSD_FULL_SIZE,
2347                                                da_default_timeout*1000);
2348                         break;
2349                 }
2350                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2351                 start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2352
2353 out:
2354                 LIST_INSERT_HEAD(&softc->pending_ccbs,
2355                                  &start_ccb->ccb_h, periph_links.le);
2356
2357                 /* We expect a unit attention from this device */
2358                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2359                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2360                         softc->flags &= ~DA_FLAG_RETRY_UA;
2361                 }
2362
2363                 start_ccb->ccb_h.ccb_bp = bp;
2364                 softc->refcount++;
2365                 cam_periph_unlock(periph);
2366                 xpt_action(start_ccb);
2367                 cam_periph_lock(periph);
2368                 softc->refcount--;
2369
2370                 /* May have more work to do, so ensure we stay scheduled */
2371                 daschedule(periph);
2372                 break;
2373         }
2374         case DA_STATE_PROBE_RC:
2375         {
2376                 struct scsi_read_capacity_data *rcap;
2377
2378                 rcap = (struct scsi_read_capacity_data *)
2379                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2380                 if (rcap == NULL) {
2381                         printf("dastart: Couldn't malloc read_capacity data\n");
2382                         /* da_free_periph??? */
2383                         break;
2384                 }
2385                 scsi_read_capacity(&start_ccb->csio,
2386                                    /*retries*/da_retry_count,
2387                                    dadone,
2388                                    MSG_SIMPLE_Q_TAG,
2389                                    rcap,
2390                                    SSD_FULL_SIZE,
2391                                    /*timeout*/5000);
2392                 start_ccb->ccb_h.ccb_bp = NULL;
2393                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2394                 xpt_action(start_ccb);
2395                 break;
2396         }
2397         case DA_STATE_PROBE_RC16:
2398         {
2399                 struct scsi_read_capacity_data_long *rcaplong;
2400
2401                 rcaplong = (struct scsi_read_capacity_data_long *)
2402                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2403                 if (rcaplong == NULL) {
2404                         printf("dastart: Couldn't malloc read_capacity data\n");
2405                         /* da_free_periph??? */
2406                         break;
2407                 }
2408                 scsi_read_capacity_16(&start_ccb->csio,
2409                                       /*retries*/ da_retry_count,
2410                                       /*cbfcnp*/ dadone,
2411                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
2412                                       /*lba*/ 0,
2413                                       /*reladr*/ 0,
2414                                       /*pmi*/ 0,
2415                                       /*rcap_buf*/ (uint8_t *)rcaplong,
2416                                       /*rcap_buf_len*/ sizeof(*rcaplong),
2417                                       /*sense_len*/ SSD_FULL_SIZE,
2418                                       /*timeout*/ da_default_timeout * 1000);
2419                 start_ccb->ccb_h.ccb_bp = NULL;
2420                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2421                 xpt_action(start_ccb);
2422                 break;
2423         }
2424         case DA_STATE_PROBE_LBP:
2425         {
2426                 struct scsi_vpd_logical_block_prov *lbp;
2427
2428                 if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2429                         /*
2430                          * If we get here we don't support any SBC-3 delete
2431                          * methods with UNMAP as the Logical Block Provisioning
2432                          * VPD page support is required for devices which
2433                          * support it according to T10/1799-D Revision 31
2434                          * however older revisions of the spec don't mandate
2435                          * this so we currently don't remove these methods
2436                          * from the available set.
2437                          */
2438                         softc->state = DA_STATE_PROBE_BLK_LIMITS;
2439                         goto skipstate;
2440                 }
2441
2442                 lbp = (struct scsi_vpd_logical_block_prov *)
2443                         malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2444
2445                 if (lbp == NULL) {
2446                         printf("dastart: Couldn't malloc lbp data\n");
2447                         /* da_free_periph??? */
2448                         break;
2449                 }
2450
2451                 scsi_inquiry(&start_ccb->csio,
2452                              /*retries*/da_retry_count,
2453                              /*cbfcnp*/dadone,
2454                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2455                              /*inq_buf*/(u_int8_t *)lbp,
2456                              /*inq_len*/sizeof(*lbp),
2457                              /*evpd*/TRUE,
2458                              /*page_code*/SVPD_LBP,
2459                              /*sense_len*/SSD_MIN_SIZE,
2460                              /*timeout*/da_default_timeout * 1000);
2461                 start_ccb->ccb_h.ccb_bp = NULL;
2462                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2463                 xpt_action(start_ccb);
2464                 break;
2465         }
2466         case DA_STATE_PROBE_BLK_LIMITS:
2467         {
2468                 struct scsi_vpd_block_limits *block_limits;
2469
2470                 if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2471                         /* Not supported skip to next probe */
2472                         softc->state = DA_STATE_PROBE_BDC;
2473                         goto skipstate;
2474                 }
2475
2476                 block_limits = (struct scsi_vpd_block_limits *)
2477                         malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2478
2479                 if (block_limits == NULL) {
2480                         printf("dastart: Couldn't malloc block_limits data\n");
2481                         /* da_free_periph??? */
2482                         break;
2483                 }
2484
2485                 scsi_inquiry(&start_ccb->csio,
2486                              /*retries*/da_retry_count,
2487                              /*cbfcnp*/dadone,
2488                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2489                              /*inq_buf*/(u_int8_t *)block_limits,
2490                              /*inq_len*/sizeof(*block_limits),
2491                              /*evpd*/TRUE,
2492                              /*page_code*/SVPD_BLOCK_LIMITS,
2493                              /*sense_len*/SSD_MIN_SIZE,
2494                              /*timeout*/da_default_timeout * 1000);
2495                 start_ccb->ccb_h.ccb_bp = NULL;
2496                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2497                 xpt_action(start_ccb);
2498                 break;
2499         }
2500         case DA_STATE_PROBE_BDC:
2501         {
2502                 struct scsi_vpd_block_characteristics *bdc;
2503
2504                 if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2505                         softc->state = DA_STATE_PROBE_ATA;
2506                         goto skipstate;
2507                 }
2508
2509                 bdc = (struct scsi_vpd_block_characteristics *)
2510                         malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2511
2512                 if (bdc == NULL) {
2513                         printf("dastart: Couldn't malloc bdc data\n");
2514                         /* da_free_periph??? */
2515                         break;
2516                 }
2517
2518                 scsi_inquiry(&start_ccb->csio,
2519                              /*retries*/da_retry_count,
2520                              /*cbfcnp*/dadone,
2521                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2522                              /*inq_buf*/(u_int8_t *)bdc,
2523                              /*inq_len*/sizeof(*bdc),
2524                              /*evpd*/TRUE,
2525                              /*page_code*/SVPD_BDC,
2526                              /*sense_len*/SSD_MIN_SIZE,
2527                              /*timeout*/da_default_timeout * 1000);
2528                 start_ccb->ccb_h.ccb_bp = NULL;
2529                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2530                 xpt_action(start_ccb);
2531                 break;
2532         }
2533         case DA_STATE_PROBE_ATA:
2534         {
2535                 struct ata_params *ata_params;
2536
2537                 if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2538                         daprobedone(periph, start_ccb);
2539                         break;
2540                 }
2541
2542                 ata_params = (struct ata_params*)
2543                         malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2544
2545                 if (ata_params == NULL) {
2546                         printf("dastart: Couldn't malloc ata_params data\n");
2547                         /* da_free_periph??? */
2548                         break;
2549                 }
2550
2551                 scsi_ata_identify(&start_ccb->csio,
2552                                   /*retries*/da_retry_count,
2553                                   /*cbfcnp*/dadone,
2554                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
2555                                   /*data_ptr*/(u_int8_t *)ata_params,
2556                                   /*dxfer_len*/sizeof(*ata_params),
2557                                   /*sense_len*/SSD_FULL_SIZE,
2558                                   /*timeout*/da_default_timeout * 1000);
2559                 start_ccb->ccb_h.ccb_bp = NULL;
2560                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2561                 xpt_action(start_ccb);
2562                 break;
2563         }
2564         }
2565 }
2566
2567 /*
2568  * In each of the methods below, while its the caller's
2569  * responsibility to ensure the request will fit into a
2570  * single device request, we might have changed the delete
2571  * method due to the device incorrectly advertising either
2572  * its supported methods or limits.
2573  *
2574  * To prevent this causing further issues we validate the
2575  * against the methods limits, and warn which would
2576  * otherwise be unnecessary.
2577  */
2578 static void
2579 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2580 {
2581         struct da_softc *softc = (struct da_softc *)periph->softc;;
2582         struct bio *bp1;
2583         uint8_t *buf = softc->unmap_buf;
2584         uint64_t lba, lastlba = (uint64_t)-1;
2585         uint64_t totalcount = 0;
2586         uint64_t count;
2587         uint32_t lastcount = 0, c;
2588         uint32_t off, ranges = 0;
2589
2590         /*
2591          * Currently this doesn't take the UNMAP
2592          * Granularity and Granularity Alignment
2593          * fields into account.
2594          *
2595          * This could result in both unoptimal unmap
2596          * requests as as well as UNMAP calls unmapping
2597          * fewer LBA's than requested.
2598          */
2599
2600         softc->delete_running = 1;
2601         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2602         bp1 = bp;
2603         do {
2604                 bioq_remove(&softc->delete_queue, bp1);
2605                 if (bp1 != bp)
2606                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2607                 lba = bp1->bio_pblkno;
2608                 count = bp1->bio_bcount / softc->params.secsize;
2609
2610                 /* Try to extend the previous range. */
2611                 if (lba == lastlba) {
2612                         c = omin(count, UNMAP_RANGE_MAX - lastcount);
2613                         lastcount += c;
2614                         off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2615                               UNMAP_HEAD_SIZE;
2616                         scsi_ulto4b(lastcount, &buf[off + 8]);
2617                         count -= c;
2618                         lba +=c;
2619                         totalcount += c;
2620                 }
2621
2622                 while (count > 0) {
2623                         c = omin(count, UNMAP_RANGE_MAX);
2624                         if (totalcount + c > softc->unmap_max_lba ||
2625                             ranges >= softc->unmap_max_ranges) {
2626                                 xpt_print(periph->path,
2627                                     "%s issuing short delete %ld > %ld"
2628                                     "|| %d >= %d",
2629                                     da_delete_method_desc[softc->delete_method],
2630                                     totalcount + c, softc->unmap_max_lba,
2631                                     ranges, softc->unmap_max_ranges);
2632                                 break;
2633                         }
2634                         off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2635                         scsi_u64to8b(lba, &buf[off + 0]);
2636                         scsi_ulto4b(c, &buf[off + 8]);
2637                         lba += c;
2638                         totalcount += c;
2639                         ranges++;
2640                         count -= c;
2641                         lastcount = c;
2642                 }
2643                 lastlba = lba;
2644                 bp1 = bioq_first(&softc->delete_queue);
2645                 if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2646                     totalcount + bp1->bio_bcount /
2647                     softc->params.secsize > softc->unmap_max_lba)
2648                         break;
2649         } while (1);
2650         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2651         scsi_ulto2b(ranges * 16, &buf[2]);
2652
2653         scsi_unmap(&ccb->csio,
2654                    /*retries*/da_retry_count,
2655                    /*cbfcnp*/dadone,
2656                    /*tag_action*/MSG_SIMPLE_Q_TAG,
2657                    /*byte2*/0,
2658                    /*data_ptr*/ buf,
2659                    /*dxfer_len*/ ranges * 16 + 8,
2660                    /*sense_len*/SSD_FULL_SIZE,
2661                    da_default_timeout * 1000);
2662         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2663         ccb->ccb_h.flags |= CAM_UNLOCKED;
2664 }
2665
2666 static void
2667 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2668 {
2669         struct da_softc *softc = (struct da_softc *)periph->softc;
2670         struct bio *bp1;
2671         uint8_t *buf = softc->unmap_buf;
2672         uint64_t lastlba = (uint64_t)-1;
2673         uint64_t count;
2674         uint64_t lba;
2675         uint32_t lastcount = 0, c, requestcount;
2676         int ranges = 0, off, block_count;
2677
2678         softc->delete_running = 1;
2679         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2680         bp1 = bp;
2681         do {
2682                 bioq_remove(&softc->delete_queue, bp1);
2683                 if (bp1 != bp)
2684                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2685                 lba = bp1->bio_pblkno;
2686                 count = bp1->bio_bcount / softc->params.secsize;
2687                 requestcount = count;
2688
2689                 /* Try to extend the previous range. */
2690                 if (lba == lastlba) {
2691                         c = omin(count, ATA_DSM_RANGE_MAX - lastcount);
2692                         lastcount += c;
2693                         off = (ranges - 1) * 8;
2694                         buf[off + 6] = lastcount & 0xff;
2695                         buf[off + 7] = (lastcount >> 8) & 0xff;
2696                         count -= c;
2697                         lba += c;
2698                 }
2699
2700                 while (count > 0) {
2701                         c = omin(count, ATA_DSM_RANGE_MAX);
2702                         off = ranges * 8;
2703
2704                         buf[off + 0] = lba & 0xff;
2705                         buf[off + 1] = (lba >> 8) & 0xff;
2706                         buf[off + 2] = (lba >> 16) & 0xff;
2707                         buf[off + 3] = (lba >> 24) & 0xff;
2708                         buf[off + 4] = (lba >> 32) & 0xff;
2709                         buf[off + 5] = (lba >> 40) & 0xff;
2710                         buf[off + 6] = c & 0xff;
2711                         buf[off + 7] = (c >> 8) & 0xff;
2712                         lba += c;
2713                         ranges++;
2714                         count -= c;
2715                         lastcount = c;
2716                         if (count != 0 && ranges == softc->trim_max_ranges) {
2717                                 xpt_print(periph->path,
2718                                     "%s issuing short delete %ld > %ld\n",
2719                                     da_delete_method_desc[softc->delete_method],
2720                                     requestcount,
2721                                     (softc->trim_max_ranges - ranges) *
2722                                     ATA_DSM_RANGE_MAX);
2723                                 break;
2724                         }
2725                 }
2726                 lastlba = lba;
2727                 bp1 = bioq_first(&softc->delete_queue);
2728                 if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2729                     (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2730                         break;
2731         } while (1);
2732
2733         block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2734         scsi_ata_trim(&ccb->csio,
2735                       /*retries*/da_retry_count,
2736                       /*cbfcnp*/dadone,
2737                       /*tag_action*/MSG_SIMPLE_Q_TAG,
2738                       block_count,
2739                       /*data_ptr*/buf,
2740                       /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2741                       /*sense_len*/SSD_FULL_SIZE,
2742                       da_default_timeout * 1000);
2743         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2744         ccb->ccb_h.flags |= CAM_UNLOCKED;
2745 }
2746
2747 /*
2748  * We calculate ws_max_blks here based off d_delmaxsize instead
2749  * of using softc->ws_max_blks as it is absolute max for the
2750  * device not the protocol max which may well be lower.
2751  */
2752 static void
2753 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2754 {
2755         struct da_softc *softc;
2756         struct bio *bp1;
2757         uint64_t ws_max_blks;
2758         uint64_t lba;
2759         uint64_t count; /* forward compat with WS32 */
2760
2761         softc = (struct da_softc *)periph->softc;
2762         ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2763         softc->delete_running = 1;
2764         lba = bp->bio_pblkno;
2765         count = 0;
2766         bp1 = bp;
2767         do {
2768                 bioq_remove(&softc->delete_queue, bp1);
2769                 if (bp1 != bp)
2770                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2771                 count += bp1->bio_bcount / softc->params.secsize;
2772                 if (count > ws_max_blks) {
2773                         xpt_print(periph->path,
2774                             "%s issuing short delete %ld > %ld\n",
2775                             da_delete_method_desc[softc->delete_method],
2776                             count, ws_max_blks);
2777                         count = omin(count, ws_max_blks);
2778                         break;
2779                 }
2780                 bp1 = bioq_first(&softc->delete_queue);
2781                 if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2782                     count + bp1->bio_bcount /
2783                     softc->params.secsize > ws_max_blks)
2784                         break;
2785         } while (1);
2786
2787         scsi_write_same(&ccb->csio,
2788                         /*retries*/da_retry_count,
2789                         /*cbfcnp*/dadone,
2790                         /*tag_action*/MSG_SIMPLE_Q_TAG,
2791                         /*byte2*/softc->delete_method ==
2792                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2793                         softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2794                         /*lba*/lba,
2795                         /*block_count*/count,
2796                         /*data_ptr*/ __DECONST(void *, zero_region),
2797                         /*dxfer_len*/ softc->params.secsize,
2798                         /*sense_len*/SSD_FULL_SIZE,
2799                         da_default_timeout * 1000);
2800         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2801         ccb->ccb_h.flags |= CAM_UNLOCKED;
2802 }
2803
2804 static int
2805 cmd6workaround(union ccb *ccb)
2806 {
2807         struct scsi_rw_6 cmd6;
2808         struct scsi_rw_10 *cmd10;
2809         struct da_softc *softc;
2810         u_int8_t *cdb;
2811         struct bio *bp;
2812         int frozen;
2813
2814         cdb = ccb->csio.cdb_io.cdb_bytes;
2815         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2816
2817         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2818                 da_delete_methods old_method = softc->delete_method;
2819
2820                 /*
2821                  * Typically there are two reasons for failure here
2822                  * 1. Delete method was detected as supported but isn't
2823                  * 2. Delete failed due to invalid params e.g. too big
2824                  *
2825                  * While we will attempt to choose an alternative delete method
2826                  * this may result in short deletes if the existing delete
2827                  * requests from geom are big for the new method choosen.
2828                  *
2829                  * This method assumes that the error which triggered this
2830                  * will not retry the io otherwise a panic will occur
2831                  */
2832                 dadeleteflag(softc, old_method, 0);
2833                 dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2834                 if (softc->delete_method == DA_DELETE_DISABLE)
2835                         xpt_print(ccb->ccb_h.path,
2836                                   "%s failed, disabling BIO_DELETE\n",
2837                                   da_delete_method_desc[old_method]);
2838                 else
2839                         xpt_print(ccb->ccb_h.path,
2840                                   "%s failed, switching to %s BIO_DELETE\n",
2841                                   da_delete_method_desc[old_method],
2842                                   da_delete_method_desc[softc->delete_method]);
2843
2844                 while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2845                         bioq_disksort(&softc->delete_queue, bp);
2846                 bioq_disksort(&softc->delete_queue,
2847                     (struct bio *)ccb->ccb_h.ccb_bp);
2848                 ccb->ccb_h.ccb_bp = NULL;
2849                 return (0);
2850         }
2851
2852         /* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2853         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2854             (*cdb == PREVENT_ALLOW) &&
2855             (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2856                 if (bootverbose)
2857                         xpt_print(ccb->ccb_h.path,
2858                             "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2859                 softc->quirks |= DA_Q_NO_PREVENT;
2860                 return (0);
2861         }
2862
2863         /* Detect unsupported SYNCHRONIZE CACHE(10). */
2864         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2865             (*cdb == SYNCHRONIZE_CACHE) &&
2866             (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2867                 if (bootverbose)
2868                         xpt_print(ccb->ccb_h.path,
2869                             "SYNCHRONIZE CACHE(10) not supported.\n");
2870                 softc->quirks |= DA_Q_NO_SYNC_CACHE;
2871                 softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2872                 return (0);
2873         }
2874
2875         /* Translation only possible if CDB is an array and cmd is R/W6 */
2876         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2877             (*cdb != READ_6 && *cdb != WRITE_6))
2878                 return 0;
2879
2880         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2881             "increasing minimum_cmd_size to 10.\n");
2882         softc->minimum_cmd_size = 10;
2883
2884         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2885         cmd10 = (struct scsi_rw_10 *)cdb;
2886         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2887         cmd10->byte2 = 0;
2888         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2889         cmd10->reserved = 0;
2890         scsi_ulto2b(cmd6.length, cmd10->length);
2891         cmd10->control = cmd6.control;
2892         ccb->csio.cdb_len = sizeof(*cmd10);
2893
2894         /* Requeue request, unfreezing queue if necessary */
2895         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2896         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2897         xpt_action(ccb);
2898         if (frozen) {
2899                 cam_release_devq(ccb->ccb_h.path,
2900                                  /*relsim_flags*/0,
2901                                  /*reduction*/0,
2902                                  /*timeout*/0,
2903                                  /*getcount_only*/0);
2904         }
2905         return (ERESTART);
2906 }
2907
2908 static void
2909 dadone(struct cam_periph *periph, union ccb *done_ccb)
2910 {
2911         struct da_softc *softc;
2912         struct ccb_scsiio *csio;
2913         u_int32_t  priority;
2914         da_ccb_state state;
2915
2916         softc = (struct da_softc *)periph->softc;
2917         priority = done_ccb->ccb_h.pinfo.priority;
2918
2919         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2920
2921         csio = &done_ccb->csio;
2922         state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2923         switch (state) {
2924         case DA_CCB_BUFFER_IO:
2925         case DA_CCB_DELETE:
2926         {
2927                 struct bio *bp, *bp1;
2928
2929                 cam_periph_lock(periph);
2930                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2931                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2932                         int error;
2933                         int sf;
2934
2935                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2936                                 sf = SF_RETRY_UA;
2937                         else
2938                                 sf = 0;
2939
2940                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2941                         if (error == ERESTART) {
2942                                 /*
2943                                  * A retry was scheduled, so
2944                                  * just return.
2945                                  */
2946                                 cam_periph_unlock(periph);
2947                                 return;
2948                         }
2949                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2950                         if (error != 0) {
2951                                 int queued_error;
2952
2953                                 /*
2954                                  * return all queued I/O with EIO, so that
2955                                  * the client can retry these I/Os in the
2956                                  * proper order should it attempt to recover.
2957                                  */
2958                                 queued_error = EIO;
2959
2960                                 if (error == ENXIO
2961                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2962                                         /*
2963                                          * Catastrophic error.  Mark our pack as
2964                                          * invalid.
2965                                          */
2966                                         /*
2967                                          * XXX See if this is really a media
2968                                          * XXX change first?
2969                                          */
2970                                         xpt_print(periph->path,
2971                                             "Invalidating pack\n");
2972                                         softc->flags |= DA_FLAG_PACK_INVALID;
2973                                         queued_error = ENXIO;
2974                                 }
2975                                 bioq_flush(&softc->bio_queue, NULL,
2976                                            queued_error);
2977                                 if (bp != NULL) {
2978                                         bp->bio_error = error;
2979                                         bp->bio_resid = bp->bio_bcount;
2980                                         bp->bio_flags |= BIO_ERROR;
2981                                 }
2982                         } else if (bp != NULL) {
2983                                 if (state == DA_CCB_DELETE)
2984                                         bp->bio_resid = 0;
2985                                 else
2986                                         bp->bio_resid = csio->resid;
2987                                 bp->bio_error = 0;
2988                                 if (bp->bio_resid != 0)
2989                                         bp->bio_flags |= BIO_ERROR;
2990                         }
2991                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2992                                 cam_release_devq(done_ccb->ccb_h.path,
2993                                                  /*relsim_flags*/0,
2994                                                  /*reduction*/0,
2995                                                  /*timeout*/0,
2996                                                  /*getcount_only*/0);
2997                 } else if (bp != NULL) {
2998                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2999                                 panic("REQ_CMP with QFRZN");
3000                         if (state == DA_CCB_DELETE)
3001                                 bp->bio_resid = 0;
3002                         else
3003                                 bp->bio_resid = csio->resid;
3004                         if (csio->resid > 0)
3005                                 bp->bio_flags |= BIO_ERROR;
3006                         if (softc->error_inject != 0) {
3007                                 bp->bio_error = softc->error_inject;
3008                                 bp->bio_resid = bp->bio_bcount;
3009                                 bp->bio_flags |= BIO_ERROR;
3010                                 softc->error_inject = 0;
3011                         }
3012                 }
3013
3014                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
3015                 if (LIST_EMPTY(&softc->pending_ccbs))
3016                         softc->flags |= DA_FLAG_WAS_OTAG;
3017
3018                 xpt_release_ccb(done_ccb);
3019                 if (state == DA_CCB_DELETE) {
3020                         TAILQ_HEAD(, bio) queue;
3021
3022                         TAILQ_INIT(&queue);
3023                         TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3024                         softc->delete_run_queue.insert_point = NULL;
3025                         softc->delete_running = 0;
3026                         daschedule(periph);
3027                         cam_periph_unlock(periph);
3028                         while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3029                                 TAILQ_REMOVE(&queue, bp1, bio_queue);
3030                                 bp1->bio_error = bp->bio_error;
3031                                 if (bp->bio_flags & BIO_ERROR) {
3032                                         bp1->bio_flags |= BIO_ERROR;
3033                                         bp1->bio_resid = bp1->bio_bcount;
3034                                 } else
3035                                         bp1->bio_resid = 0;
3036                                 biodone(bp1);
3037                         }
3038                 } else
3039                         cam_periph_unlock(periph);
3040                 if (bp != NULL)
3041                         biodone(bp);
3042                 return;
3043         }
3044         case DA_CCB_PROBE_RC:
3045         case DA_CCB_PROBE_RC16:
3046         {
3047                 struct     scsi_read_capacity_data *rdcap;
3048                 struct     scsi_read_capacity_data_long *rcaplong;
3049                 char       announce_buf[80];
3050                 int        lbp;
3051
3052                 lbp = 0;
3053                 rdcap = NULL;
3054                 rcaplong = NULL;
3055                 if (state == DA_CCB_PROBE_RC)
3056                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3057                 else
3058                         rcaplong = (struct scsi_read_capacity_data_long *)
3059                                 csio->data_ptr;
3060
3061                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3062                         struct disk_params *dp;
3063                         uint32_t block_size;
3064                         uint64_t maxsector;
3065                         u_int lbppbe;   /* LB per physical block exponent. */
3066                         u_int lalba;    /* Lowest aligned LBA. */
3067
3068                         if (state == DA_CCB_PROBE_RC) {
3069                                 block_size = scsi_4btoul(rdcap->length);
3070                                 maxsector = scsi_4btoul(rdcap->addr);
3071                                 lbppbe = 0;
3072                                 lalba = 0;
3073
3074                                 /*
3075                                  * According to SBC-2, if the standard 10
3076                                  * byte READ CAPACITY command returns 2^32,
3077                                  * we should issue the 16 byte version of
3078                                  * the command, since the device in question
3079                                  * has more sectors than can be represented
3080                                  * with the short version of the command.
3081                                  */
3082                                 if (maxsector == 0xffffffff) {
3083                                         free(rdcap, M_SCSIDA);
3084                                         xpt_release_ccb(done_ccb);
3085                                         softc->state = DA_STATE_PROBE_RC16;
3086                                         xpt_schedule(periph, priority);
3087                                         return;
3088                                 }
3089                         } else {
3090                                 block_size = scsi_4btoul(rcaplong->length);
3091                                 maxsector = scsi_8btou64(rcaplong->addr);
3092                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3093                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3094                         }
3095
3096                         /*
3097                          * Because GEOM code just will panic us if we
3098                          * give them an 'illegal' value we'll avoid that
3099                          * here.
3100                          */
3101                         if (block_size == 0) {
3102                                 block_size = 512;
3103                                 if (maxsector == 0)
3104                                         maxsector = -1;
3105                         }
3106                         if (block_size >= MAXPHYS) {
3107                                 xpt_print(periph->path,
3108                                     "unsupportable block size %ju\n",
3109                                     (uintmax_t) block_size);
3110                                 announce_buf[0] = '\0';
3111                                 cam_periph_invalidate(periph);
3112                         } else {
3113                                 /*
3114                                  * We pass rcaplong into dasetgeom(),
3115                                  * because it will only use it if it is
3116                                  * non-NULL.
3117                                  */
3118                                 dasetgeom(periph, block_size, maxsector,
3119                                           rcaplong, sizeof(*rcaplong));
3120                                 lbp = (lalba & SRC16_LBPME_A);
3121                                 dp = &softc->params;
3122                                 snprintf(announce_buf, sizeof(announce_buf),
3123                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
3124                                         "%dC)", (uintmax_t)
3125                                         (((uintmax_t)dp->secsize *
3126                                         dp->sectors) / (1024*1024)),
3127                                         (uintmax_t)dp->sectors,
3128                                         dp->secsize, dp->heads,
3129                                         dp->secs_per_track, dp->cylinders);
3130                         }
3131                 } else {
3132                         int     error;
3133
3134                         announce_buf[0] = '\0';
3135
3136                         /*
3137                          * Retry any UNIT ATTENTION type errors.  They
3138                          * are expected at boot.
3139                          */
3140                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3141                                         SF_RETRY_UA|SF_NO_PRINT);
3142                         if (error == ERESTART) {
3143                                 /*
3144                                  * A retry was scheuled, so
3145                                  * just return.
3146                                  */
3147                                 return;
3148                         } else if (error != 0) {
3149                                 int asc, ascq;
3150                                 int sense_key, error_code;
3151                                 int have_sense;
3152                                 cam_status status;
3153                                 struct ccb_getdev cgd;
3154
3155                                 /* Don't wedge this device's queue */
3156                                 status = done_ccb->ccb_h.status;
3157                                 if ((status & CAM_DEV_QFRZN) != 0)
3158                                         cam_release_devq(done_ccb->ccb_h.path,
3159                                                          /*relsim_flags*/0,
3160                                                          /*reduction*/0,
3161                                                          /*timeout*/0,
3162                                                          /*getcount_only*/0);
3163
3164
3165                                 xpt_setup_ccb(&cgd.ccb_h,
3166                                               done_ccb->ccb_h.path,
3167                                               CAM_PRIORITY_NORMAL);
3168                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3169                                 xpt_action((union ccb *)&cgd);
3170
3171                                 if (scsi_extract_sense_ccb(done_ccb,
3172                                     &error_code, &sense_key, &asc, &ascq))
3173                                         have_sense = TRUE;
3174                                 else
3175                                         have_sense = FALSE;
3176
3177                                 /*
3178                                  * If we tried READ CAPACITY(16) and failed,
3179                                  * fallback to READ CAPACITY(10).
3180                                  */
3181                                 if ((state == DA_CCB_PROBE_RC16) &&
3182                                     (softc->flags & DA_FLAG_CAN_RC16) &&
3183                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3184                                         CAM_REQ_INVALID) ||
3185                                      ((have_sense) &&
3186                                       (error_code == SSD_CURRENT_ERROR) &&
3187                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3188                                         softc->flags &= ~DA_FLAG_CAN_RC16;
3189                                         free(rdcap, M_SCSIDA);
3190                                         xpt_release_ccb(done_ccb);
3191                                         softc->state = DA_STATE_PROBE_RC;
3192                                         xpt_schedule(periph, priority);
3193                                         return;
3194                                 } else
3195                                 /*
3196                                  * Attach to anything that claims to be a
3197                                  * direct access or optical disk device,
3198                                  * as long as it doesn't return a "Logical
3199                                  * unit not supported" (0x25) error.
3200                                  */
3201                                 if ((have_sense) && (asc != 0x25)
3202                                  && (error_code == SSD_CURRENT_ERROR)) {
3203                                         const char *sense_key_desc;
3204                                         const char *asc_desc;
3205
3206                                         dasetgeom(periph, 512, -1, NULL, 0);
3207                                         scsi_sense_desc(sense_key, asc, ascq,
3208                                                         &cgd.inq_data,
3209                                                         &sense_key_desc,
3210                                                         &asc_desc);
3211                                         snprintf(announce_buf,
3212                                             sizeof(announce_buf),
3213                                                 "Attempt to query device "
3214                                                 "size failed: %s, %s",
3215                                                 sense_key_desc,
3216                                                 asc_desc);
3217                                 } else {
3218                                         if (have_sense)
3219                                                 scsi_sense_print(
3220                                                         &done_ccb->csio);
3221                                         else {
3222                                                 xpt_print(periph->path,
3223                                                     "got CAM status %#x\n",
3224                                                     done_ccb->ccb_h.status);
3225                                         }
3226
3227                                         xpt_print(periph->path, "fatal error, "
3228                                             "failed to attach to device\n");
3229
3230                                         /*
3231                                          * Free up resources.
3232                                          */
3233                                         cam_periph_invalidate(periph);
3234                                 }
3235                         }
3236                 }
3237                 free(csio->data_ptr, M_SCSIDA);
3238                 if (announce_buf[0] != '\0' &&
3239                     ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3240                         /*
3241                          * Create our sysctl variables, now that we know
3242                          * we have successfully attached.
3243                          */
3244                         /* increase the refcount */
3245                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3246                                 taskqueue_enqueue(taskqueue_thread,
3247                                                   &softc->sysctl_task);
3248                                 xpt_announce_periph(periph, announce_buf);
3249                                 xpt_announce_quirks(periph, softc->quirks,
3250                                     DA_Q_BIT_STRING);
3251                         } else {
3252                                 xpt_print(periph->path, "fatal error, "
3253                                     "could not acquire reference count\n");
3254                         }
3255                 }
3256
3257                 /* We already probed the device. */
3258                 if (softc->flags & DA_FLAG_PROBED) {
3259                         daprobedone(periph, done_ccb);
3260                         return;
3261                 }
3262
3263                 /* Ensure re-probe doesn't see old delete. */
3264                 softc->delete_available = 0;
3265                 if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3266                         /*
3267                          * Based on older SBC-3 spec revisions
3268                          * any of the UNMAP methods "may" be
3269                          * available via LBP given this flag so
3270                          * we flag all of them as availble and
3271                          * then remove those which further
3272                          * probes confirm aren't available
3273                          * later.
3274                          *
3275                          * We could also check readcap(16) p_type
3276                          * flag to exclude one or more invalid
3277                          * write same (X) types here
3278                          */
3279                         dadeleteflag(softc, DA_DELETE_WS16, 1);
3280                         dadeleteflag(softc, DA_DELETE_WS10, 1);
3281                         dadeleteflag(softc, DA_DELETE_ZERO, 1);
3282                         dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3283
3284                         xpt_release_ccb(done_ccb);
3285                         softc->state = DA_STATE_PROBE_LBP;
3286                         xpt_schedule(periph, priority);
3287                         return;
3288                 }
3289
3290                 xpt_release_ccb(done_ccb);
3291                 softc->state = DA_STATE_PROBE_BDC;
3292                 xpt_schedule(periph, priority);
3293                 return;
3294         }
3295         case DA_CCB_PROBE_LBP:
3296         {
3297                 struct scsi_vpd_logical_block_prov *lbp;
3298
3299                 lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3300
3301                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3302                         /*
3303                          * T10/1799-D Revision 31 states at least one of these
3304                          * must be supported but we don't currently enforce this.
3305                          */
3306                         dadeleteflag(softc, DA_DELETE_WS16,
3307                                      (lbp->flags & SVPD_LBP_WS16));
3308                         dadeleteflag(softc, DA_DELETE_WS10,
3309                                      (lbp->flags & SVPD_LBP_WS10));
3310                         dadeleteflag(softc, DA_DELETE_ZERO,
3311                                      (lbp->flags & SVPD_LBP_WS10));
3312                         dadeleteflag(softc, DA_DELETE_UNMAP,
3313                                      (lbp->flags & SVPD_LBP_UNMAP));
3314                 } else {
3315                         int error;
3316                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3317                                         SF_RETRY_UA|SF_NO_PRINT);
3318                         if (error == ERESTART)
3319                                 return;
3320                         else if (error != 0) {
3321                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3322                                         /* Don't wedge this device's queue */
3323                                         cam_release_devq(done_ccb->ccb_h.path,
3324                                                          /*relsim_flags*/0,
3325                                                          /*reduction*/0,
3326                                                          /*timeout*/0,
3327                                                          /*getcount_only*/0);
3328                                 }
3329
3330                                 /*
3331                                  * Failure indicates we don't support any SBC-3
3332                                  * delete methods with UNMAP
3333                                  */
3334                         }
3335                 }
3336
3337                 free(lbp, M_SCSIDA);
3338                 xpt_release_ccb(done_ccb);
3339                 softc->state = DA_STATE_PROBE_BLK_LIMITS;
3340                 xpt_schedule(periph, priority);
3341                 return;
3342         }
3343         case DA_CCB_PROBE_BLK_LIMITS:
3344         {
3345                 struct scsi_vpd_block_limits *block_limits;
3346
3347                 block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3348
3349                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3350                         uint32_t max_txfer_len = scsi_4btoul(
3351                                 block_limits->max_txfer_len);
3352                         uint32_t max_unmap_lba_cnt = scsi_4btoul(
3353                                 block_limits->max_unmap_lba_cnt);
3354                         uint32_t max_unmap_blk_cnt = scsi_4btoul(
3355                                 block_limits->max_unmap_blk_cnt);
3356                         uint64_t ws_max_blks = scsi_8btou64(
3357                                 block_limits->max_write_same_length);
3358
3359                         if (max_txfer_len != 0) {
3360                                 softc->disk->d_maxsize = MIN(softc->maxio,
3361                                     (off_t)max_txfer_len * softc->params.secsize);
3362                         }
3363
3364                         /*
3365                          * We should already support UNMAP but we check lba
3366                          * and block count to be sure
3367                          */
3368                         if (max_unmap_lba_cnt != 0x00L &&
3369                             max_unmap_blk_cnt != 0x00L) {
3370                                 softc->unmap_max_lba = max_unmap_lba_cnt;
3371                                 softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3372                                         UNMAP_MAX_RANGES);
3373                         } else {
3374                                 /*
3375                                  * Unexpected UNMAP limits which means the
3376                                  * device doesn't actually support UNMAP
3377                                  */
3378                                 dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3379                         }
3380
3381                         if (ws_max_blks != 0x00L)
3382                                 softc->ws_max_blks = ws_max_blks;
3383                 } else {
3384                         int error;
3385                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3386                                         SF_RETRY_UA|SF_NO_PRINT);
3387                         if (error == ERESTART)
3388                                 return;
3389                         else if (error != 0) {
3390                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3391                                         /* Don't wedge this device's queue */
3392                                         cam_release_devq(done_ccb->ccb_h.path,
3393                                                          /*relsim_flags*/0,
3394                                                          /*reduction*/0,
3395                                                          /*timeout*/0,
3396                                                          /*getcount_only*/0);
3397                                 }
3398
3399                                 /*
3400                                  * Failure here doesn't mean UNMAP is not
3401                                  * supported as this is an optional page.
3402                                  */
3403                                 softc->unmap_max_lba = 1;
3404                                 softc->unmap_max_ranges = 1;
3405                         }
3406                 }
3407
3408                 free(block_limits, M_SCSIDA);
3409                 xpt_release_ccb(done_ccb);
3410                 softc->state = DA_STATE_PROBE_BDC;
3411                 xpt_schedule(periph, priority);
3412                 return;
3413         }
3414         case DA_CCB_PROBE_BDC:
3415         {
3416                 struct scsi_vpd_block_characteristics *bdc;
3417
3418                 bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3419
3420                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3421                         /*
3422                          * Disable queue sorting for non-rotational media
3423                          * by default.
3424                          */
3425                         u_int old_rate = softc->disk->d_rotation_rate;
3426
3427                         softc->disk->d_rotation_rate =
3428                                 scsi_2btoul(bdc->medium_rotation_rate);
3429                         if (softc->disk->d_rotation_rate ==
3430                             SVPD_BDC_RATE_NON_ROTATING) {
3431                                 softc->sort_io_queue = 0;
3432                         }
3433                         if (softc->disk->d_rotation_rate != old_rate) {
3434                                 disk_attr_changed(softc->disk,
3435                                     "GEOM::rotation_rate", M_NOWAIT);
3436                         }
3437                 } else {
3438                         int error;
3439                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3440                                         SF_RETRY_UA|SF_NO_PRINT);
3441                         if (error == ERESTART)
3442                                 return;
3443                         else if (error != 0) {
3444                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3445                                         /* Don't wedge this device's queue */
3446                                         cam_release_devq(done_ccb->ccb_h.path,
3447                                                          /*relsim_flags*/0,
3448                                                          /*reduction*/0,
3449                                                          /*timeout*/0,
3450                                                          /*getcount_only*/0);
3451                                 }
3452                         }
3453                 }
3454
3455                 free(bdc, M_SCSIDA);
3456                 xpt_release_ccb(done_ccb);
3457                 softc->state = DA_STATE_PROBE_ATA;
3458                 xpt_schedule(periph, priority);
3459                 return;
3460         }
3461         case DA_CCB_PROBE_ATA:
3462         {
3463                 int i;
3464                 struct ata_params *ata_params;
3465                 int16_t *ptr;
3466
3467                 ata_params = (struct ata_params *)csio->data_ptr;
3468                 ptr = (uint16_t *)ata_params;
3469
3470                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3471                         uint16_t old_rate;
3472
3473                         for (i = 0; i < sizeof(*ata_params) / 2; i++)
3474                                 ptr[i] = le16toh(ptr[i]);
3475                         if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3476                             (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3477                                 dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3478                                 if (ata_params->max_dsm_blocks != 0)
3479                                         softc->trim_max_ranges = min(
3480                                           softc->trim_max_ranges,
3481                                           ata_params->max_dsm_blocks *
3482                                           ATA_DSM_BLK_RANGES);
3483                         }
3484                         /*
3485                          * Disable queue sorting for non-rotational media
3486                          * by default.
3487                          */
3488                         old_rate = softc->disk->d_rotation_rate;
3489                         softc->disk->d_rotation_rate =
3490                             ata_params->media_rotation_rate;
3491                         if (softc->disk->d_rotation_rate ==
3492                             ATA_RATE_NON_ROTATING) {
3493                                 softc->sort_io_queue = 0;
3494                         }
3495
3496                         if (softc->disk->d_rotation_rate != old_rate) {
3497                                 disk_attr_changed(softc->disk,
3498                                     "GEOM::rotation_rate", M_NOWAIT);
3499                         }
3500                 } else {
3501                         int error;
3502                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3503                                         SF_RETRY_UA|SF_NO_PRINT);
3504                         if (error == ERESTART)
3505                                 return;
3506                         else if (error != 0) {
3507                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3508                                         /* Don't wedge this device's queue */
3509                                         cam_release_devq(done_ccb->ccb_h.path,
3510                                                          /*relsim_flags*/0,
3511                                                          /*reduction*/0,
3512                                                          /*timeout*/0,
3513                                                          /*getcount_only*/0);
3514                                 }
3515                         }
3516                 }
3517
3518                 free(ata_params, M_SCSIDA);
3519                 daprobedone(periph, done_ccb);
3520                 return;
3521         }
3522         case DA_CCB_DUMP:
3523                 /* No-op.  We're polling */
3524                 return;
3525         case DA_CCB_TUR:
3526         {
3527                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3528
3529                         if (daerror(done_ccb, CAM_RETRY_SELTO,
3530                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3531                             ERESTART)
3532                                 return;
3533                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3534                                 cam_release_devq(done_ccb->ccb_h.path,
3535                                                  /*relsim_flags*/0,
3536                                                  /*reduction*/0,
3537                                                  /*timeout*/0,
3538                                                  /*getcount_only*/0);
3539                 }
3540                 xpt_release_ccb(done_ccb);
3541                 cam_periph_release_locked(periph);
3542                 return;
3543         }
3544         default:
3545                 break;
3546         }
3547         xpt_release_ccb(done_ccb);
3548 }
3549
3550 static void
3551 dareprobe(struct cam_periph *periph)
3552 {
3553         struct da_softc   *softc;
3554         cam_status status;
3555
3556         softc = (struct da_softc *)periph->softc;
3557
3558         /* Probe in progress; don't interfere. */
3559         if (softc->state != DA_STATE_NORMAL)
3560                 return;
3561
3562         status = cam_periph_acquire(periph);
3563         KASSERT(status == CAM_REQ_CMP,
3564             ("dareprobe: cam_periph_acquire failed"));
3565
3566         if (softc->flags & DA_FLAG_CAN_RC16)
3567                 softc->state = DA_STATE_PROBE_RC16;
3568         else
3569                 softc->state = DA_STATE_PROBE_RC;
3570
3571         xpt_schedule(periph, CAM_PRIORITY_DEV);
3572 }
3573
3574 static int
3575 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3576 {
3577         struct da_softc   *softc;
3578         struct cam_periph *periph;
3579         int error, error_code, sense_key, asc, ascq;
3580
3581         periph = xpt_path_periph(ccb->ccb_h.path);
3582         softc = (struct da_softc *)periph->softc;
3583
3584         /*
3585          * Automatically detect devices that do not support
3586          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3587          */
3588         error = 0;
3589         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3590                 error = cmd6workaround(ccb);
3591         } else if (scsi_extract_sense_ccb(ccb,
3592             &error_code, &sense_key, &asc, &ascq)) {
3593                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3594                         error = cmd6workaround(ccb);
3595                 /*
3596                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
3597                  * query the capacity and notify upper layers.
3598                  */
3599                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3600                     asc == 0x2A && ascq == 0x09) {
3601                         xpt_print(periph->path, "Capacity data has changed\n");
3602                         softc->flags &= ~DA_FLAG_PROBED;
3603                         dareprobe(periph);
3604                         sense_flags |= SF_NO_PRINT;
3605                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3606                     asc == 0x28 && ascq == 0x00) {
3607                         softc->flags &= ~DA_FLAG_PROBED;
3608                         disk_media_changed(softc->disk, M_NOWAIT);
3609                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3610                     asc == 0x3F && ascq == 0x03) {
3611                         xpt_print(periph->path, "INQUIRY data has changed\n");
3612                         softc->flags &= ~DA_FLAG_PROBED;
3613                         dareprobe(periph);
3614                         sense_flags |= SF_NO_PRINT;
3615                 } else if (sense_key == SSD_KEY_NOT_READY &&
3616                     asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3617                         softc->flags |= DA_FLAG_PACK_INVALID;
3618                         disk_media_gone(softc->disk, M_NOWAIT);
3619                 }
3620         }
3621         if (error == ERESTART)
3622                 return (ERESTART);
3623
3624         /*
3625          * XXX
3626          * Until we have a better way of doing pack validation,
3627          * don't treat UAs as errors.
3628          */
3629         sense_flags |= SF_RETRY_UA;
3630         return(cam_periph_error(ccb, cam_flags, sense_flags,
3631                                 &softc->saved_ccb));
3632 }
3633
3634 static void
3635 damediapoll(void *arg)
3636 {
3637         struct cam_periph *periph = arg;
3638         struct da_softc *softc = periph->softc;
3639
3640         if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3641                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3642                         softc->tur = 1;
3643                         daschedule(periph);
3644                 }
3645         }
3646         /* Queue us up again */
3647         if (da_poll_period != 0)
3648                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3649 }
3650
3651 static void
3652 daprevent(struct cam_periph *periph, int action)
3653 {
3654         struct  da_softc *softc;
3655         union   ccb *ccb;
3656         int     error;
3657
3658         softc = (struct da_softc *)periph->softc;
3659
3660         if (((action == PR_ALLOW)
3661           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3662          || ((action == PR_PREVENT)
3663           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3664                 return;
3665         }
3666
3667         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3668
3669         scsi_prevent(&ccb->csio,
3670                      /*retries*/1,
3671                      /*cbcfp*/dadone,
3672                      MSG_SIMPLE_Q_TAG,
3673                      action,
3674                      SSD_FULL_SIZE,
3675                      5000);
3676
3677         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3678             SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3679
3680         if (error == 0) {
3681                 if (action == PR_ALLOW)
3682                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
3683                 else
3684                         softc->flags |= DA_FLAG_PACK_LOCKED;
3685         }
3686
3687         xpt_release_ccb(ccb);
3688 }
3689
3690 static void
3691 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3692           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3693 {
3694         struct ccb_calc_geometry ccg;
3695         struct da_softc *softc;
3696         struct disk_params *dp;
3697         u_int lbppbe, lalba;
3698         int error;
3699
3700         softc = (struct da_softc *)periph->softc;
3701
3702         dp = &softc->params;
3703         dp->secsize = block_len;
3704         dp->sectors = maxsector + 1;
3705         if (rcaplong != NULL) {
3706                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3707                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3708                 lalba &= SRC16_LALBA_A;
3709         } else {
3710                 lbppbe = 0;
3711                 lalba = 0;
3712         }
3713
3714         if (lbppbe > 0) {
3715                 dp->stripesize = block_len << lbppbe;
3716                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3717                     dp->stripesize;
3718         } else if (softc->quirks & DA_Q_4K) {
3719                 dp->stripesize = 4096;
3720                 dp->stripeoffset = 0;
3721         } else {
3722                 dp->stripesize = 0;
3723                 dp->stripeoffset = 0;
3724         }
3725         /*
3726          * Have the controller provide us with a geometry
3727          * for this disk.  The only time the geometry
3728          * matters is when we boot and the controller
3729          * is the only one knowledgeable enough to come
3730          * up with something that will make this a bootable
3731          * device.
3732          */
3733         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3734         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3735         ccg.block_size = dp->secsize;
3736         ccg.volume_size = dp->sectors;
3737         ccg.heads = 0;
3738         ccg.secs_per_track = 0;
3739         ccg.cylinders = 0;
3740         xpt_action((union ccb*)&ccg);
3741         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3742                 /*
3743                  * We don't know what went wrong here- but just pick
3744                  * a geometry so we don't have nasty things like divide
3745                  * by zero.
3746                  */
3747                 dp->heads = 255;
3748                 dp->secs_per_track = 255;
3749                 dp->cylinders = dp->sectors / (255 * 255);
3750                 if (dp->cylinders == 0) {
3751                         dp->cylinders = 1;
3752                 }
3753         } else {
3754                 dp->heads = ccg.heads;
3755                 dp->secs_per_track = ccg.secs_per_track;
3756                 dp->cylinders = ccg.cylinders;
3757         }
3758
3759         /*
3760          * If the user supplied a read capacity buffer, and if it is
3761          * different than the previous buffer, update the data in the EDT.
3762          * If it's the same, we don't bother.  This avoids sending an
3763          * update every time someone opens this device.
3764          */
3765         if ((rcaplong != NULL)
3766          && (bcmp(rcaplong, &softc->rcaplong,
3767                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3768                 struct ccb_dev_advinfo cdai;
3769
3770                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3771                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3772                 cdai.buftype = CDAI_TYPE_RCAPLONG;
3773                 cdai.flags |= CDAI_FLAG_STORE;
3774                 cdai.bufsiz = rcap_len;
3775                 cdai.buf = (uint8_t *)rcaplong;
3776                 xpt_action((union ccb *)&cdai);
3777                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3778                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3779                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
3780                         xpt_print(periph->path, "%s: failed to set read "
3781                                   "capacity advinfo\n", __func__);
3782                         /* Use cam_error_print() to decode the status */
3783                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3784                                         CAM_EPF_ALL);
3785                 } else {
3786                         bcopy(rcaplong, &softc->rcaplong,
3787                               min(sizeof(softc->rcaplong), rcap_len));
3788                 }
3789         }
3790
3791         softc->disk->d_sectorsize = softc->params.secsize;
3792         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3793         softc->disk->d_stripesize = softc->params.stripesize;
3794         softc->disk->d_stripeoffset = softc->params.stripeoffset;
3795         /* XXX: these are not actually "firmware" values, so they may be wrong */
3796         softc->disk->d_fwsectors = softc->params.secs_per_track;
3797         softc->disk->d_fwheads = softc->params.heads;
3798         softc->disk->d_devstat->block_size = softc->params.secsize;
3799         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3800
3801         error = disk_resize(softc->disk, M_NOWAIT);
3802         if (error != 0)
3803                 xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3804 }
3805
3806 static void
3807 dasendorderedtag(void *arg)
3808 {
3809         struct da_softc *softc = arg;
3810
3811         if (da_send_ordered) {
3812                 if (!LIST_EMPTY(&softc->pending_ccbs)) {
3813                         if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3814                                 softc->flags |= DA_FLAG_NEED_OTAG;
3815                         softc->flags &= ~DA_FLAG_WAS_OTAG;
3816                 }
3817         }
3818         /* Queue us up again */
3819         callout_reset(&softc->sendordered_c,
3820             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3821             dasendorderedtag, softc);
3822 }
3823
3824 /*
3825  * Step through all DA peripheral drivers, and if the device is still open,
3826  * sync the disk cache to physical media.
3827  */
3828 static void
3829 dashutdown(void * arg, int howto)
3830 {
3831         struct cam_periph *periph;
3832         struct da_softc *softc;
3833         union ccb *ccb;
3834         int error;
3835
3836         CAM_PERIPH_FOREACH(periph, &dadriver) {
3837                 softc = (struct da_softc *)periph->softc;
3838                 if (SCHEDULER_STOPPED()) {
3839                         /* If we paniced with the lock held, do not recurse. */
3840                         if (!cam_periph_owned(periph) &&
3841                             (softc->flags & DA_FLAG_OPEN)) {
3842                                 dadump(softc->disk, NULL, 0, 0, 0);
3843                         }
3844                         continue;
3845                 }
3846                 cam_periph_lock(periph);
3847
3848                 /*
3849                  * We only sync the cache if the drive is still open, and
3850                  * if the drive is capable of it..
3851                  */
3852                 if (((softc->flags & DA_FLAG_OPEN) == 0)
3853                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3854                         cam_periph_unlock(periph);
3855                         continue;
3856                 }
3857
3858                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3859                 scsi_synchronize_cache(&ccb->csio,
3860                                        /*retries*/0,
3861                                        /*cbfcnp*/dadone,
3862                                        MSG_SIMPLE_Q_TAG,
3863                                        /*begin_lba*/0, /* whole disk */
3864                                        /*lb_count*/0,
3865                                        SSD_FULL_SIZE,
3866                                        60 * 60 * 1000);
3867
3868                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3869                     /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3870                     softc->disk->d_devstat);
3871                 if (error != 0)
3872                         xpt_print(periph->path, "Synchronize cache failed\n");
3873                 xpt_release_ccb(ccb);
3874                 cam_periph_unlock(periph);
3875         }
3876 }
3877
3878 #else /* !_KERNEL */
3879
3880 /*
3881  * XXX These are only left out of the kernel build to silence warnings.  If,
3882  * for some reason these functions are used in the kernel, the ifdefs should
3883  * be moved so they are included both in the kernel and userland.
3884  */
3885 void
3886 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
3887                  void (*cbfcnp)(struct cam_periph *, union ccb *),
3888                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
3889                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3890                  u_int32_t timeout)
3891 {
3892         struct scsi_format_unit *scsi_cmd;
3893
3894         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
3895         scsi_cmd->opcode = FORMAT_UNIT;
3896         scsi_cmd->byte2 = byte2;
3897         scsi_ulto2b(ileave, scsi_cmd->interleave);
3898
3899         cam_fill_csio(csio,
3900                       retries,
3901                       cbfcnp,
3902                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3903                       tag_action,
3904                       data_ptr,
3905                       dxfer_len,
3906                       sense_len,
3907                       sizeof(*scsi_cmd),
3908                       timeout);
3909 }
3910
3911 void
3912 scsi_read_defects(struct ccb_scsiio *csio, uint32_t retries,
3913                   void (*cbfcnp)(struct cam_periph *, union ccb *),
3914                   uint8_t tag_action, uint8_t list_format,
3915                   uint32_t addr_desc_index, uint8_t *data_ptr,
3916                   uint32_t dxfer_len, int minimum_cmd_size,
3917                   uint8_t sense_len, uint32_t timeout)
3918 {
3919         uint8_t cdb_len;
3920
3921         /*
3922          * These conditions allow using the 10 byte command.  Otherwise we
3923          * need to use the 12 byte command.
3924          */
3925         if ((minimum_cmd_size <= 10)
3926          && (addr_desc_index == 0)
3927          && (dxfer_len <= SRDD10_MAX_LENGTH)) {
3928                 struct scsi_read_defect_data_10 *cdb10;
3929
3930                 cdb10 = (struct scsi_read_defect_data_10 *)
3931                         &csio->cdb_io.cdb_bytes;
3932
3933                 cdb_len = sizeof(*cdb10);
3934                 bzero(cdb10, cdb_len);
3935                 cdb10->opcode = READ_DEFECT_DATA_10;
3936                 cdb10->format = list_format;
3937                 scsi_ulto2b(dxfer_len, cdb10->alloc_length);
3938         } else {
3939                 struct scsi_read_defect_data_12 *cdb12;
3940
3941                 cdb12 = (struct scsi_read_defect_data_12 *)
3942                         &csio->cdb_io.cdb_bytes;
3943
3944                 cdb_len = sizeof(*cdb12);
3945                 bzero(cdb12, cdb_len);
3946                 cdb12->opcode = READ_DEFECT_DATA_12;
3947                 cdb12->format = list_format;
3948                 scsi_ulto4b(dxfer_len, cdb12->alloc_length);
3949                 scsi_ulto4b(addr_desc_index, cdb12->address_descriptor_index);
3950         }
3951
3952         cam_fill_csio(csio,
3953                       retries,
3954                       cbfcnp,
3955                       /*flags*/ CAM_DIR_IN,
3956                       tag_action,
3957                       data_ptr,
3958                       dxfer_len,
3959                       sense_len,
3960                       cdb_len,
3961                       timeout);
3962 }
3963
3964 void
3965 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
3966               void (*cbfcnp)(struct cam_periph *, union ccb *),
3967               u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
3968               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3969               u_int32_t timeout)
3970 {
3971         struct scsi_sanitize *scsi_cmd;
3972
3973         scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
3974         scsi_cmd->opcode = SANITIZE;
3975         scsi_cmd->byte2 = byte2;
3976         scsi_cmd->control = control;
3977         scsi_ulto2b(dxfer_len, scsi_cmd->length);
3978
3979         cam_fill_csio(csio,
3980                       retries,
3981                       cbfcnp,
3982                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3983                       tag_action,
3984                       data_ptr,
3985                       dxfer_len,
3986                       sense_len,
3987                       sizeof(*scsi_cmd),
3988                       timeout);
3989 }
3990
3991 #endif /* _KERNEL */