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