sys/cam/scsi/scsi_da.c

   1 /*-
   2  * Implementation of SCSI Direct Access Peripheral driver for CAM.
   3  *
   4  * Copyright (c) 1997 Justin T. Gibbs.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions, and the following disclaimer,
  12  *    without modification, immediately at the beginning of the file.
  13  * 2. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
  20  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <sys/param.h>
  33
  34 #ifdef _KERNEL
  35 #include <sys/systm.h>
  36 #include <sys/kernel.h>
  37 #include <sys/bio.h>
  38 #include <sys/sysctl.h>
  39 #include <sys/taskqueue.h>
  40 #include <sys/lock.h>
  41 #include <sys/mutex.h>
  42 #include <sys/conf.h>
  43 #include <sys/devicestat.h>
  44 #include <sys/eventhandler.h>
  45 #include <sys/malloc.h>
  46 #include <sys/cons.h>
  47 #include <sys/endian.h>
  48 #include <sys/proc.h>
  49 #include <geom/geom.h>
  50 #include <geom/geom_disk.h>
  51 #endif /* _KERNEL */
  52
  53 #ifndef _KERNEL
  54 #include <stdio.h>
  55 #include <string.h>
  56 #endif /* _KERNEL */
  57
  58 #include <cam/cam.h>
  59 #include <cam/cam_ccb.h>
  60 #include <cam/cam_periph.h>
  61 #include <cam/cam_xpt_periph.h>
  62 #include <cam/cam_sim.h>
  63
  64 #include <cam/scsi/scsi_message.h>
  65
  66 #ifndef _KERNEL
  67 #include <cam/scsi/scsi_da.h>
  68 #endif /* !_KERNEL */
  69
  70 #ifdef _KERNEL
  71 typedef enum {
  72         DA_STATE_PROBE_RC,
  73         DA_STATE_PROBE_RC16,
  74         DA_STATE_PROBE_LBP,
  75         DA_STATE_PROBE_BLK_LIMITS,
  76         DA_STATE_PROBE_BDC,
  77         DA_STATE_PROBE_ATA,
  78         DA_STATE_NORMAL
  79 } da_state;
  80
  81 typedef enum {
  82         DA_FLAG_PACK_INVALID    = 0x001,
  83         DA_FLAG_NEW_PACK        = 0x002,
  84         DA_FLAG_PACK_LOCKED     = 0x004,
  85         DA_FLAG_PACK_REMOVABLE  = 0x008,
  86         DA_FLAG_NEED_OTAG       = 0x020,
  87         DA_FLAG_WAS_OTAG        = 0x040,
  88         DA_FLAG_RETRY_UA        = 0x080,
  89         DA_FLAG_OPEN            = 0x100,
  90         DA_FLAG_SCTX_INIT       = 0x200,
  91         DA_FLAG_CAN_RC16        = 0x400,
  92         DA_FLAG_PROBED          = 0x800,
  93         DA_FLAG_DIRTY           = 0x1000,
  94         DA_FLAG_ANNOUNCED       = 0x2000
  95 } da_flags;
  96
  97 typedef enum {
  98         DA_Q_NONE               = 0x00,
  99         DA_Q_NO_SYNC_CACHE      = 0x01,
 100         DA_Q_NO_6_BYTE          = 0x02,
 101         DA_Q_NO_PREVENT         = 0x04,
 102         DA_Q_4K                 = 0x08,
 103         DA_Q_NO_RC16            = 0x10,
 104         DA_Q_NO_UNMAP           = 0x20
 105 } da_quirks;
 106
 107 #define DA_Q_BIT_STRING         \
 108         "\020"                  \
 109         "\001NO_SYNC_CACHE"     \
 110         "\002NO_6_BYTE"         \
 111         "\003NO_PREVENT"        \
 112         "\0044K"                \
 113         "\005NO_RC16"
 114
 115 typedef enum {
 116         DA_CCB_PROBE_RC         = 0x01,
 117         DA_CCB_PROBE_RC16       = 0x02,
 118         DA_CCB_PROBE_LBP        = 0x03,
 119         DA_CCB_PROBE_BLK_LIMITS = 0x04,
 120         DA_CCB_PROBE_BDC        = 0x05,
 121         DA_CCB_PROBE_ATA        = 0x06,
 122         DA_CCB_BUFFER_IO        = 0x07,
 123         DA_CCB_DUMP             = 0x0A,
 124         DA_CCB_DELETE           = 0x0B,
 125         DA_CCB_TUR              = 0x0C,
 126         DA_CCB_TYPE_MASK        = 0x0F,
 127         DA_CCB_RETRY_UA         = 0x10
 128 } da_ccb_state;
 129
 130 /*
 131  * Order here is important for method choice
 132  *
 133  * We prefer ATA_TRIM as tests run against a Sandforce 2281 SSD attached to
 134  * LSI 2008 (mps) controller (FW: v12, Drv: v14) resulted 20% quicker deletes
 135  * using ATA_TRIM than the corresponding UNMAP results for a real world mysql
 136  * import taking 5mins.
 137  *
 138  */
 139 typedef enum {
 140         DA_DELETE_NONE,
 141         DA_DELETE_DISABLE,
 142         DA_DELETE_ATA_TRIM,
 143         DA_DELETE_UNMAP,
 144         DA_DELETE_WS16,
 145         DA_DELETE_WS10,
 146         DA_DELETE_ZERO,
 147         DA_DELETE_MIN = DA_DELETE_ATA_TRIM,
 148         DA_DELETE_MAX = DA_DELETE_ZERO
 149 } da_delete_methods;
 150
 151 typedef void da_delete_func_t (struct cam_periph *periph, union ccb *ccb,
 152                               struct bio *bp);
 153 static da_delete_func_t da_delete_trim;
 154 static da_delete_func_t da_delete_unmap;
 155 static da_delete_func_t da_delete_ws;
 156
 157 static const void * da_delete_functions[] = {
 158         NULL,
 159         NULL,
 160         da_delete_trim,
 161         da_delete_unmap,
 162         da_delete_ws,
 163         da_delete_ws,
 164         da_delete_ws
 165 };
 166
 167 static const char *da_delete_method_names[] =
 168     { "NONE", "DISABLE", "ATA_TRIM", "UNMAP", "WS16", "WS10", "ZERO" };
 169 static const char *da_delete_method_desc[] =
 170     { "NONE", "DISABLED", "ATA TRIM", "UNMAP", "WRITE SAME(16) with UNMAP",
 171       "WRITE SAME(10) with UNMAP", "ZERO" };
 172
 173 /* Offsets into our private area for storing information */
 174 #define ccb_state       ppriv_field0
 175 #define ccb_bp          ppriv_ptr1
 176
 177 struct disk_params {
 178         u_int8_t  heads;
 179         u_int32_t cylinders;
 180         u_int8_t  secs_per_track;
 181         u_int32_t secsize;      /* Number of bytes/sector */
 182         u_int64_t sectors;      /* total number sectors */
 183         u_int     stripesize;
 184         u_int     stripeoffset;
 185 };
 186
 187 #define UNMAP_RANGE_MAX         0xffffffff
 188 #define UNMAP_HEAD_SIZE         8
 189 #define UNMAP_RANGE_SIZE        16
 190 #define UNMAP_MAX_RANGES        2048 /* Protocol Max is 4095 */
 191 #define UNMAP_BUF_SIZE          ((UNMAP_MAX_RANGES * UNMAP_RANGE_SIZE) + \
 192                                 UNMAP_HEAD_SIZE)
 193
 194 #define WS10_MAX_BLKS           0xffff
 195 #define WS16_MAX_BLKS           0xffffffff
 196 #define ATA_TRIM_MAX_RANGES     ((UNMAP_BUF_SIZE / \
 197         (ATA_DSM_RANGE_SIZE * ATA_DSM_BLK_SIZE)) * ATA_DSM_BLK_SIZE)
 198
 199 struct da_softc {
 200         struct   bio_queue_head bio_queue;
 201         struct   bio_queue_head delete_queue;
 202         struct   bio_queue_head delete_run_queue;
 203         LIST_HEAD(, ccb_hdr) pending_ccbs;
 204         int      tur;                   /* TEST UNIT READY should be sent */
 205         int      refcount;              /* Active xpt_action() calls */
 206         da_state state;
 207         da_flags flags;
 208         da_quirks quirks;
 209         int      sort_io_queue;
 210         int      minimum_cmd_size;
 211         int      error_inject;
 212         int      trim_max_ranges;
 213         int      delete_running;
 214         int      delete_available;      /* Delete methods possibly available */
 215         u_int    maxio;
 216         uint32_t                unmap_max_ranges;
 217         uint32_t                unmap_max_lba; /* Max LBAs in UNMAP req */
 218         uint64_t                ws_max_blks;
 219         da_delete_methods       delete_method;
 220         da_delete_func_t        *delete_func;
 221         struct   disk_params params;
 222         struct   disk *disk;
 223         union    ccb saved_ccb;
 224         struct task             sysctl_task;
 225         struct sysctl_ctx_list  sysctl_ctx;
 226         struct sysctl_oid       *sysctl_tree;
 227         struct callout          sendordered_c;
 228         uint64_t wwpn;
 229         uint8_t  unmap_buf[UNMAP_BUF_SIZE];
 230         struct scsi_read_capacity_data_long rcaplong;
 231         struct callout          mediapoll_c;
 232 };
 233
 234 #define dadeleteflag(softc, delete_method, enable)                      \
 235         if (enable) {                                                   \
 236                 softc->delete_available |= (1 << delete_method);        \
 237         } else {                                                        \
 238                 softc->delete_available &= ~(1 << delete_method);       \
 239         }
 240
 241 struct da_quirk_entry {
 242         struct scsi_inquiry_pattern inq_pat;
 243         da_quirks quirks;
 244 };
 245
 246 static const char quantum[] = "QUANTUM";
 247 static const char microp[] = "MICROP";
 248
 249 static struct da_quirk_entry da_quirk_table[] =
 250 {
 251         /* SPI, FC devices */
 252         {
 253                 /*
 254                  * Fujitsu M2513A MO drives.
 255                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 256                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 257                  * Reported by: W.Scholten <whs@xs4all.nl>
 258                  */
 259                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 260                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 261         },
 262         {
 263                 /* See above. */
 264                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 265                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 266         },
 267         {
 268                 /*
 269                  * This particular Fujitsu drive doesn't like the
 270                  * synchronize cache command.
 271                  * Reported by: Tom Jackson <toj@gorilla.net>
 272                  */
 273                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 274                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 275         },
 276         {
 277                 /*
 278                  * This drive doesn't like the synchronize cache command
 279                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 280                  * in NetBSD PR kern/6027, August 24, 1998.
 281                  */
 282                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 283                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 284         },
 285         {
 286                 /*
 287                  * This drive doesn't like the synchronize cache command
 288                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 289                  * (PR 8882).
 290                  */
 291                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 292                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 293         },
 294         {
 295                 /*
 296                  * Doesn't like the synchronize cache command.
 297                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 298                  */
 299                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 300                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 301         },
 302         {
 303                 /*
 304                  * Doesn't like the synchronize cache command.
 305                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 306                  */
 307                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 308                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 309         },
 310         {
 311                 /*
 312                  * Doesn't like the synchronize cache command.
 313                  */
 314                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 315                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 316         },
 317         {
 318                 /*
 319                  * Doesn't like the synchronize cache command.
 320                  * Reported by: walter@pelissero.de
 321                  */
 322                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 323                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 324         },
 325         {
 326                 /*
 327                  * Doesn't work correctly with 6 byte reads/writes.
 328                  * Returns illegal request, and points to byte 9 of the
 329                  * 6-byte CDB.
 330                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 331                  */
 332                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 333                 /*quirks*/ DA_Q_NO_6_BYTE
 334         },
 335         {
 336                 /* See above. */
 337                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 338                 /*quirks*/ DA_Q_NO_6_BYTE
 339         },
 340         {
 341                 /*
 342                  * Doesn't like the synchronize cache command.
 343                  * Reported by: walter@pelissero.de
 344                  */
 345                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 346                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 347         },
 348         {
 349                 /*
 350                  * The CISS RAID controllers do not support SYNC_CACHE
 351                  */
 352                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 353                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 354         },
 355         {
 356                 /*
 357                  * The STEC SSDs sometimes hang on UNMAP.
 358                  */
 359                 {T_DIRECT, SIP_MEDIA_FIXED, "STEC", "*", "*"},
 360                 /*quirks*/ DA_Q_NO_UNMAP
 361         },
 362         /* USB mass storage devices supported by umass(4) */
 363         {
 364                 /*
 365                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 366                  * PR: kern/51675
 367                  */
 368                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 369                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 370         },
 371         {
 372                 /*
 373                  * Power Quotient Int. (PQI) USB flash key
 374                  * PR: kern/53067
 375                  */
 376                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 377                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 378         },
 379         {
 380                 /*
 381                  * Creative Nomad MUVO mp3 player (USB)
 382                  * PR: kern/53094
 383                  */
 384                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 385                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 386         },
 387         {
 388                 /*
 389                  * Jungsoft NEXDISK USB flash key
 390                  * PR: kern/54737
 391                  */
 392                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 393                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 394         },
 395         {
 396                 /*
 397                  * FreeDik USB Mini Data Drive
 398                  * PR: kern/54786
 399                  */
 400                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 401                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 402         },
 403         {
 404                 /*
 405                  * Sigmatel USB Flash MP3 Player
 406                  * PR: kern/57046
 407                  */
 408                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 409                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 410         },
 411         {
 412                 /*
 413                  * Neuros USB Digital Audio Computer
 414                  * PR: kern/63645
 415                  */
 416                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 417                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 418         },
 419         {
 420                 /*
 421                  * SEAGRAND NP-900 MP3 Player
 422                  * PR: kern/64563
 423                  */
 424                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 425                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 426         },
 427         {
 428                 /*
 429                  * iRiver iFP MP3 player (with UMS Firmware)
 430                  * PR: kern/54881, i386/63941, kern/66124
 431                  */
 432                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 433                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 434         },
 435         {
 436                 /*
 437                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 438                  * PR: kern/70158
 439                  */
 440                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 441                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 442         },
 443         {
 444                 /*
 445                  * ZICPlay USB MP3 Player with FM
 446                  * PR: kern/75057
 447                  */
 448                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 449                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 450         },
 451         {
 452                 /*
 453                  * TEAC USB floppy mechanisms
 454                  */
 455                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 456                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 457         },
 458         {
 459                 /*
 460                  * Kingston DataTraveler II+ USB Pen-Drive.
 461                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 462                  */
 463                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 464                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 465         },
 466         {
 467                 /*
 468                  * USB DISK Pro PMAP
 469                  * Reported by: jhs
 470                  * PR: usb/96381
 471                  */
 472                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
 473                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 474         },
 475         {
 476                 /*
 477                  * Motorola E398 Mobile Phone (TransFlash memory card).
 478                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 479                  * PR: usb/89889
 480                  */
 481                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 482                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 483         },
 484         {
 485                 /*
 486                  * Qware BeatZkey! Pro
 487                  * PR: usb/79164
 488                  */
 489                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 490                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 491         },
 492         {
 493                 /*
 494                  * Time DPA20B 1GB MP3 Player
 495                  * PR: usb/81846
 496                  */
 497                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 498                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 499         },
 500         {
 501                 /*
 502                  * Samsung USB key 128Mb
 503                  * PR: usb/90081
 504                  */
 505                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 506                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 507         },
 508         {
 509                 /*
 510                  * Kingston DataTraveler 2.0 USB Flash memory.
 511                  * PR: usb/89196
 512                  */
 513                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 514                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 515         },
 516         {
 517                 /*
 518                  * Creative MUVO Slim mp3 player (USB)
 519                  * PR: usb/86131
 520                  */
 521                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 522                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 523                 },
 524         {
 525                 /*
 526                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 527                  * PR: usb/80487
 528                  */
 529                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 530                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 531         },
 532         {
 533                 /*
 534                  * SanDisk Micro Cruzer 128MB
 535                  * PR: usb/75970
 536                  */
 537                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 538                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 539         },
 540         {
 541                 /*
 542                  * TOSHIBA TransMemory USB sticks
 543                  * PR: kern/94660
 544                  */
 545                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 546                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 547         },
 548         {
 549                 /*
 550                  * PNY USB 3.0 Flash Drives
 551                 */
 552                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PNY", "USB 3.0 FD*",
 553                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_RC16
 554         },
 555         {
 556                 /*
 557                  * PNY USB Flash keys
 558                  * PR: usb/75578, usb/72344, usb/65436
 559                  */
 560                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 561                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 562         },
 563         {
 564                 /*
 565                  * Genesys 6-in-1 Card Reader
 566                  * PR: usb/94647
 567                  */
 568                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 569                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 570         },
 571         {
 572                 /*
 573                  * Rekam Digital CAMERA
 574                  * PR: usb/98713
 575                  */
 576                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 577                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 578         },
 579         {
 580                 /*
 581                  * iRiver H10 MP3 player
 582                  * PR: usb/102547
 583                  */
 584                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 585                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 586         },
 587         {
 588                 /*
 589                  * iRiver U10 MP3 player
 590                  * PR: usb/92306
 591                  */
 592                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 593                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 594         },
 595         {
 596                 /*
 597                  * X-Micro Flash Disk
 598                  * PR: usb/96901
 599                  */
 600                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 601                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 602         },
 603         {
 604                 /*
 605                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 606                  * PR: usb/96546
 607                  */
 608                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 609                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 610         },
 611         {
 612                 /*
 613                  * Denver MP3 player
 614                  * PR: usb/107101
 615                  */
 616                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 617                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 618         },
 619         {
 620                 /*
 621                  * Philips USB Key Audio KEY013
 622                  * PR: usb/68412
 623                  */
 624                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 625                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 626         },
 627         {
 628                 /*
 629                  * JNC MP3 Player
 630                  * PR: usb/94439
 631                  */
 632                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 633                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 634         },
 635         {
 636                 /*
 637                  * SAMSUNG MP0402H
 638                  * PR: usb/108427
 639                  */
 640                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 641                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 642         },
 643         {
 644                 /*
 645                  * I/O Magic USB flash - Giga Bank
 646                  * PR: usb/108810
 647                  */
 648                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 649                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 650         },
 651         {
 652                 /*
 653                  * JoyFly 128mb USB Flash Drive
 654                  * PR: 96133
 655                  */
 656                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 657                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 658         },
 659         {
 660                 /*
 661                  * ChipsBnk usb stick
 662                  * PR: 103702
 663                  */
 664                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 665                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 666         },
 667         {
 668                 /*
 669                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 670                  * PR: 129858
 671                  */
 672                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 673                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 674         },
 675         {
 676                 /*
 677                  * Samsung YP-U3 mp3-player
 678                  * PR: 125398
 679                  */
 680                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 681                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 682         },
 683         {
 684                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 685                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 686         },
 687         {
 688                 /*
 689                  * Sony Cyber-Shot DSC cameras
 690                  * PR: usb/137035
 691                  */
 692                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 693                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 694         },
 695         {
 696                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler G3",
 697                  "1.00"}, /*quirks*/ DA_Q_NO_PREVENT
 698         },
 699         {
 700                 /* At least several Transcent USB sticks lie on RC16. */
 701                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JetFlash", "Transcend*",
 702                  "*"}, /*quirks*/ DA_Q_NO_RC16
 703         },
 704         /* ATA/SATA devices over SAS/USB/... */
 705         {
 706                 /* Hitachi Advanced Format (4k) drives */
 707                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 708                 /*quirks*/DA_Q_4K
 709         },
 710         {
 711                 /* Samsung Advanced Format (4k) drives */
 712                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 713                 /*quirks*/DA_Q_4K
 714         },
 715         {
 716                 /* Samsung Advanced Format (4k) drives */
 717                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 718                 /*quirks*/DA_Q_4K
 719         },
 720         {
 721                 /* Samsung Advanced Format (4k) drives */
 722                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 723                 /*quirks*/DA_Q_4K
 724         },
 725         {
 726                 /* Samsung Advanced Format (4k) drives */
 727                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 728                 /*quirks*/DA_Q_4K
 729         },
 730         {
 731                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 732                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 733                 /*quirks*/DA_Q_4K
 734         },
 735         {
 736                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 737                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 738                 /*quirks*/DA_Q_4K
 739         },
 740         {
 741                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 742                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 743                 /*quirks*/DA_Q_4K
 744         },
 745         {
 746                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 747                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 748                 /*quirks*/DA_Q_4K
 749         },
 750         {
 751                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 752                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 753                 /*quirks*/DA_Q_4K
 754         },
 755         {
 756                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 757                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 758                 /*quirks*/DA_Q_4K
 759         },
 760         {
 761                 /* Seagate Momentus Advanced Format (4k) drives */
 762                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 763                 /*quirks*/DA_Q_4K
 764         },
 765         {
 766                 /* Seagate Momentus Advanced Format (4k) drives */
 767                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 768                 /*quirks*/DA_Q_4K
 769         },
 770         {
 771                 /* Seagate Momentus Advanced Format (4k) drives */
 772                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 773                 /*quirks*/DA_Q_4K
 774         },
 775         {
 776                 /* Seagate Momentus Advanced Format (4k) drives */
 777                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 778                 /*quirks*/DA_Q_4K
 779         },
 780         {
 781                 /* Seagate Momentus Advanced Format (4k) drives */
 782                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 783                 /*quirks*/DA_Q_4K
 784         },
 785         {
 786                 /* Seagate Momentus Advanced Format (4k) drives */
 787                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 788                 /*quirks*/DA_Q_4K
 789         },
 790         {
 791                 /* Seagate Momentus Advanced Format (4k) drives */
 792                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 793                 /*quirks*/DA_Q_4K
 794         },
 795         {
 796                 /* Seagate Momentus Advanced Format (4k) drives */
 797                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 798                 /*quirks*/DA_Q_4K
 799         },
 800         {
 801                 /* Seagate Momentus Advanced Format (4k) drives */
 802                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 803                 /*quirks*/DA_Q_4K
 804         },
 805         {
 806                 /* Seagate Momentus Advanced Format (4k) drives */
 807                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 808                 /*quirks*/DA_Q_4K
 809         },
 810         {
 811                 /* Seagate Momentus Advanced Format (4k) drives */
 812                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 813                 /*quirks*/DA_Q_4K
 814         },
 815         {
 816                 /* Seagate Momentus Advanced Format (4k) drives */
 817                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 818                 /*quirks*/DA_Q_4K
 819         },
 820         {
 821                 /* Seagate Momentus Advanced Format (4k) drives */
 822                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 823                 /*quirks*/DA_Q_4K
 824         },
 825         {
 826                 /* Seagate Momentus Advanced Format (4k) drives */
 827                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 828                 /*quirks*/DA_Q_4K
 829         },
 830         {
 831                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 832                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 833                 /*quirks*/DA_Q_4K
 834         },
 835         {
 836                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 837                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 838                 /*quirks*/DA_Q_4K
 839         },
 840         {
 841                 /* WDC Caviar Green Advanced Format (4k) drives */
 842                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 843                 /*quirks*/DA_Q_4K
 844         },
 845         {
 846                 /* WDC Caviar Green Advanced Format (4k) drives */
 847                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 848                 /*quirks*/DA_Q_4K
 849         },
 850         {
 851                 /* WDC Caviar Green Advanced Format (4k) drives */
 852                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 853                 /*quirks*/DA_Q_4K
 854         },
 855         {
 856                 /* WDC Caviar Green Advanced Format (4k) drives */
 857                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 858                 /*quirks*/DA_Q_4K
 859         },
 860         {
 861                 /* WDC Caviar Green Advanced Format (4k) drives */
 862                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 863                 /*quirks*/DA_Q_4K
 864         },
 865         {
 866                 /* WDC Caviar Green Advanced Format (4k) drives */
 867                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 868                 /*quirks*/DA_Q_4K
 869         },
 870         {
 871                 /* WDC Caviar Green Advanced Format (4k) drives */
 872                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 873                 /*quirks*/DA_Q_4K
 874         },
 875         {
 876                 /* WDC Caviar Green Advanced Format (4k) drives */
 877                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 878                 /*quirks*/DA_Q_4K
 879         },
 880         {
 881                 /* WDC Scorpio Black Advanced Format (4k) drives */
 882                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 883                 /*quirks*/DA_Q_4K
 884         },
 885         {
 886                 /* WDC Scorpio Black Advanced Format (4k) drives */
 887                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 888                 /*quirks*/DA_Q_4K
 889         },
 890         {
 891                 /* WDC Scorpio Black Advanced Format (4k) drives */
 892                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 893                 /*quirks*/DA_Q_4K
 894         },
 895         {
 896                 /* WDC Scorpio Black Advanced Format (4k) drives */
 897                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 898                 /*quirks*/DA_Q_4K
 899         },
 900         {
 901                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 902                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 903                 /*quirks*/DA_Q_4K
 904         },
 905         {
 906                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 907                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 908                 /*quirks*/DA_Q_4K
 909         },
 910         {
 911                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 912                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 913                 /*quirks*/DA_Q_4K
 914         },
 915         {
 916                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 917                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 918                 /*quirks*/DA_Q_4K
 919         },
 920         {
 921                 /*
 922                  * Olympus FE-210 camera
 923                  */
 924                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 925                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 926         },
 927         {
 928                 /*
 929                  * LG UP3S MP3 player
 930                  */
 931                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 932                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 933         },
 934         {
 935                 /*
 936                  * Laser MP3-2GA13 MP3 player
 937                  */
 938                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 939                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 940         },
 941         {
 942                 /*
 943                  * LaCie external 250GB Hard drive des by Porsche
 944                  * Submitted by: Ben Stuyts <ben@altesco.nl>
 945                  * PR: 121474
 946                  */
 947                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
 948                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 949         },
 950         /* SATA SSDs */
 951         {
 952                 /*
 953                  * Corsair Force 2 SSDs
 954                  * 4k optimised & trim only works in 4k requests + 4k aligned
 955                  */
 956                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair CSSD-F*", "*" },
 957                 /*quirks*/DA_Q_4K
 958         },
 959         {
 960                 /*
 961                  * Corsair Force 3 SSDs
 962                  * 4k optimised & trim only works in 4k requests + 4k aligned
 963                  */
 964                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force 3*", "*" },
 965                 /*quirks*/DA_Q_4K
 966         },
 967         {
 968                 /*
 969                  * Corsair Neutron GTX SSDs
 970                  * 4k optimised & trim only works in 4k requests + 4k aligned
 971                  */
 972                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "Corsair Neutron GTX*", "*" },
 973                 /*quirks*/DA_Q_4K
 974         },
 975         {
 976                 /*
 977                  * Corsair Force GT & GS SSDs
 978                  * 4k optimised & trim only works in 4k requests + 4k aligned
 979                  */
 980                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Corsair Force G*", "*" },
 981                 /*quirks*/DA_Q_4K
 982         },
 983         {
 984                 /*
 985                  * Crucial M4 SSDs
 986                  * 4k optimised & trim only works in 4k requests + 4k aligned
 987                  */
 988                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "M4-CT???M4SSD2*", "*" },
 989                 /*quirks*/DA_Q_4K
 990         },
 991         {
 992                 /*
 993                  * Crucial RealSSD C300 SSDs
 994                  * 4k optimised
 995                  */
 996                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "C300-CTFDDAC???MAG*",
 997                 "*" }, /*quirks*/DA_Q_4K
 998         },
 999         {
1000                 /*
1001                  * Intel 320 Series SSDs
1002                  * 4k optimised & trim only works in 4k requests + 4k aligned
1003                  */
1004                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2CW*", "*" },
1005                 /*quirks*/DA_Q_4K
1006         },
1007         {
1008                 /*
1009                  * Intel 330 Series SSDs
1010                  * 4k optimised & trim only works in 4k requests + 4k aligned
1011                  */
1012                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2CT*", "*" },
1013                 /*quirks*/DA_Q_4K
1014         },
1015         {
1016                 /*
1017                  * Intel 510 Series SSDs
1018                  * 4k optimised & trim only works in 4k requests + 4k aligned
1019                  */
1020                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2MH*", "*" },
1021                 /*quirks*/DA_Q_4K
1022         },
1023         {
1024                 /*
1025                  * Intel 520 Series SSDs
1026                  * 4k optimised & trim only works in 4k requests + 4k aligned
1027                  */
1028                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSC2BW*", "*" },
1029                 /*quirks*/DA_Q_4K
1030         },
1031         {
1032                 /*
1033                  * Intel X25-M Series SSDs
1034                  * 4k optimised & trim only works in 4k requests + 4k aligned
1035                  */
1036                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "INTEL SSDSA2M*", "*" },
1037                 /*quirks*/DA_Q_4K
1038         },
1039         {
1040                 /*
1041                  * Kingston E100 Series SSDs
1042                  * 4k optimised & trim only works in 4k requests + 4k aligned
1043                  */
1044                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SE100S3*", "*" },
1045                 /*quirks*/DA_Q_4K
1046         },
1047         {
1048                 /*
1049                  * Kingston HyperX 3k SSDs
1050                  * 4k optimised & trim only works in 4k requests + 4k aligned
1051                  */
1052                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "KINGSTON SH103S3*", "*" },
1053                 /*quirks*/DA_Q_4K
1054         },
1055         {
1056                 /*
1057                  * Marvell SSDs (entry taken from OpenSolaris)
1058                  * 4k optimised & trim only works in 4k requests + 4k aligned
1059                  */
1060                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "MARVELL SD88SA02*", "*" },
1061                 /*quirks*/DA_Q_4K
1062         },
1063         {
1064                 /*
1065                  * OCZ Agility 2 SSDs
1066                  * 4k optimised & trim only works in 4k requests + 4k aligned
1067                  */
1068                 { T_DIRECT, SIP_MEDIA_FIXED, "*", "OCZ-AGILITY2*", "*" },
1069                 /*quirks*/DA_Q_4K
1070         },
1071         {
1072                 /*
1073                  * OCZ Agility 3 SSDs
1074                  * 4k optimised & trim only works in 4k requests + 4k aligned
1075                  */
1076                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-AGILITY3*", "*" },
1077                 /*quirks*/DA_Q_4K
1078         },
1079         {
1080                 /*
1081                  * OCZ Deneva R Series SSDs
1082                  * 4k optimised & trim only works in 4k requests + 4k aligned
1083                  */
1084                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "DENRSTE251M45*", "*" },
1085                 /*quirks*/DA_Q_4K
1086         },
1087         {
1088                 /*
1089                  * OCZ Vertex 2 SSDs (inc pro series)
1090                  * 4k optimised & trim only works in 4k requests + 4k aligned
1091                  */
1092                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ?VERTEX2*", "*" },
1093                 /*quirks*/DA_Q_4K
1094         },
1095         {
1096                 /*
1097                  * OCZ Vertex 3 SSDs
1098                  * 4k optimised & trim only works in 4k requests + 4k aligned
1099                  */
1100                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX3*", "*" },
1101                 /*quirks*/DA_Q_4K
1102         },
1103         {
1104                 /*
1105                  * OCZ Vertex 4 SSDs
1106                  * 4k optimised & trim only works in 4k requests + 4k aligned
1107                  */
1108                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "OCZ-VERTEX4*", "*" },
1109                 /*quirks*/DA_Q_4K
1110         },
1111         {
1112                 /*
1113                  * Samsung 830 Series SSDs
1114                  * 4k optimised & trim only works in 4k requests + 4k aligned
1115                  */
1116                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG SSD 830 Series*", "*" },
1117                 /*quirks*/DA_Q_4K
1118         },
1119         {
1120                 /*
1121                  * Samsung 840 SSDs
1122                  * 4k optimised & trim only works in 4k requests + 4k aligned
1123                  */
1124                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 840*", "*" },
1125                 /*quirks*/DA_Q_4K
1126         },
1127         {
1128                 /*
1129                  * Samsung 843T Series SSDs
1130                  * 4k optimised
1131                  */
1132                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7WD*", "*" },
1133                 /*quirks*/DA_Q_4K
1134         },
1135         {
1136                 /*
1137                  * Samsung 850 SSDs
1138                  * 4k optimised & trim only works in 4k requests + 4k aligned
1139                  */
1140                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "Samsung SSD 850*", "*" },
1141                 /*quirks*/DA_Q_4K
1142         },
1143         {
1144                 /*
1145                  * Samsung PM853T Series SSDs
1146                  * 4k optimised
1147                  */
1148                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG MZ7GE*", "*" },
1149                 /*quirks*/DA_Q_4K
1150         },
1151         {
1152                 /*
1153                  * SuperTalent TeraDrive CT SSDs
1154                  * 4k optimised & trim only works in 4k requests + 4k aligned
1155                  */
1156                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "FTM??CT25H*", "*" },
1157                 /*quirks*/DA_Q_4K
1158         },
1159         {
1160                 /*
1161                  * XceedIOPS SATA SSDs
1162                  * 4k optimised
1163                  */
1164                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SG9XCS2D*", "*" },
1165                 /*quirks*/DA_Q_4K
1166         },
1167 };
1168
1169 static  disk_strategy_t dastrategy;
1170 static  dumper_t        dadump;
1171 static  periph_init_t   dainit;
1172 static  void            daasync(void *callback_arg, u_int32_t code,
1173                                 struct cam_path *path, void *arg);
1174 static  void            dasysctlinit(void *context, int pending);
1175 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
1176 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
1177 static  int             dadeletemaxsysctl(SYSCTL_HANDLER_ARGS);
1178 static  void            dadeletemethodset(struct da_softc *softc,
1179                                           da_delete_methods delete_method);
1180 static  off_t           dadeletemaxsize(struct da_softc *softc,
1181                                         da_delete_methods delete_method);
1182 static  void            dadeletemethodchoose(struct da_softc *softc,
1183                                              da_delete_methods default_method);
1184 static  void            daprobedone(struct cam_periph *periph, union ccb *ccb);
1185
1186 static  periph_ctor_t   daregister;
1187 static  periph_dtor_t   dacleanup;
1188 static  periph_start_t  dastart;
1189 static  periph_oninv_t  daoninvalidate;
1190 static  void            dadone(struct cam_periph *periph,
1191                                union ccb *done_ccb);
1192 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
1193                                 u_int32_t sense_flags);
1194 static void             daprevent(struct cam_periph *periph, int action);
1195 static void             dareprobe(struct cam_periph *periph);
1196 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
1197                                   uint64_t maxsector,
1198                                   struct scsi_read_capacity_data_long *rcaplong,
1199                                   size_t rcap_size);
1200 static timeout_t        dasendorderedtag;
1201 static void             dashutdown(void *arg, int howto);
1202 static timeout_t        damediapoll;
1203
1204 #ifndef DA_DEFAULT_POLL_PERIOD
1205 #define DA_DEFAULT_POLL_PERIOD  3
1206 #endif
1207
1208 #ifndef DA_DEFAULT_TIMEOUT
1209 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
1210 #endif
1211
1212 #ifndef DA_DEFAULT_RETRY
1213 #define DA_DEFAULT_RETRY        4
1214 #endif
1215
1216 #ifndef DA_DEFAULT_SEND_ORDERED
1217 #define DA_DEFAULT_SEND_ORDERED 1
1218 #endif
1219
1220 #define DA_SIO (softc->sort_io_queue >= 0 ? \
1221     softc->sort_io_queue : cam_sort_io_queues)
1222
1223 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
1224 static int da_retry_count = DA_DEFAULT_RETRY;
1225 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
1226 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
1227
1228 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
1229             "CAM Direct Access Disk driver");
1230 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RWTUN,
1231            &da_poll_period, 0, "Media polling period in seconds");
1232 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RWTUN,
1233            &da_retry_count, 0, "Normal I/O retry count");
1234 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RWTUN,
1235            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
1236 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RWTUN,
1237            &da_send_ordered, 0, "Send Ordered Tags");
1238
1239 /*
1240  * DA_ORDEREDTAG_INTERVAL determines how often, relative
1241  * to the default timeout, we check to see whether an ordered
1242  * tagged transaction is appropriate to prevent simple tag
1243  * starvation.  Since we'd like to ensure that there is at least
1244  * 1/2 of the timeout length left for a starved transaction to
1245  * complete after we've sent an ordered tag, we must poll at least
1246  * four times in every timeout period.  This takes care of the worst
1247  * case where a starved transaction starts during an interval that
1248  * meets the requirement "don't send an ordered tag" test so it takes
1249  * us two intervals to determine that a tag must be sent.
1250  */
1251 #ifndef DA_ORDEREDTAG_INTERVAL
1252 #define DA_ORDEREDTAG_INTERVAL 4
1253 #endif
1254
1255 static struct periph_driver dadriver =
1256 {
1257         dainit, "da",
1258         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
1259 };
1260
1261 PERIPHDRIVER_DECLARE(da, dadriver);
1262
1263 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
1264
1265 static int
1266 daopen(struct disk *dp)
1267 {
1268         struct cam_periph *periph;
1269         struct da_softc *softc;
1270         int error;
1271
1272         periph = (struct cam_periph *)dp->d_drv1;
1273         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1274                 return (ENXIO);
1275         }
1276
1277         cam_periph_lock(periph);
1278         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
1279                 cam_periph_unlock(periph);
1280                 cam_periph_release(periph);
1281                 return (error);
1282         }
1283
1284         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1285             ("daopen\n"));
1286
1287         softc = (struct da_softc *)periph->softc;
1288         dareprobe(periph);
1289
1290         /* Wait for the disk size update.  */
1291         error = cam_periph_sleep(periph, &softc->disk->d_mediasize, PRIBIO,
1292             "dareprobe", 0);
1293         if (error != 0)
1294                 xpt_print(periph->path, "unable to retrieve capacity data\n");
1295
1296         if (periph->flags & CAM_PERIPH_INVALID)
1297                 error = ENXIO;
1298
1299         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1300             (softc->quirks & DA_Q_NO_PREVENT) == 0)
1301                 daprevent(periph, PR_PREVENT);
1302
1303         if (error == 0) {
1304                 softc->flags &= ~DA_FLAG_PACK_INVALID;
1305                 softc->flags |= DA_FLAG_OPEN;
1306         }
1307
1308         cam_periph_unhold(periph);
1309         cam_periph_unlock(periph);
1310
1311         if (error != 0)
1312                 cam_periph_release(periph);
1313
1314         return (error);
1315 }
1316
1317 static int
1318 daclose(struct disk *dp)
1319 {
1320         struct  cam_periph *periph;
1321         struct  da_softc *softc;
1322         union   ccb *ccb;
1323         int error;
1324
1325         periph = (struct cam_periph *)dp->d_drv1;
1326         softc = (struct da_softc *)periph->softc;
1327         cam_periph_lock(periph);
1328         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1329             ("daclose\n"));
1330
1331         if (cam_periph_hold(periph, PRIBIO) == 0) {
1332
1333                 /* Flush disk cache. */
1334                 if ((softc->flags & DA_FLAG_DIRTY) != 0 &&
1335                     (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0 &&
1336                     (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1337                         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1338                         scsi_synchronize_cache(&ccb->csio, /*retries*/1,
1339                             /*cbfcnp*/dadone, MSG_SIMPLE_Q_TAG,
1340                             /*begin_lba*/0, /*lb_count*/0, SSD_FULL_SIZE,
1341                             5 * 60 * 1000);
1342                         error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1343                             /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1344                             softc->disk->d_devstat);
1345                         if (error == 0)
1346                                 softc->flags &= ~DA_FLAG_DIRTY;
1347                         xpt_release_ccb(ccb);
1348                 }
1349
1350                 /* Allow medium removal. */
1351                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
1352                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
1353                         daprevent(periph, PR_ALLOW);
1354
1355                 cam_periph_unhold(periph);
1356         }
1357
1358         /*
1359          * If we've got removeable media, mark the blocksize as
1360          * unavailable, since it could change when new media is
1361          * inserted.
1362          */
1363         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0)
1364                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1365
1366         softc->flags &= ~DA_FLAG_OPEN;
1367         while (softc->refcount != 0)
1368                 cam_periph_sleep(periph, &softc->refcount, PRIBIO, "daclose", 1);
1369         cam_periph_unlock(periph);
1370         cam_periph_release(periph);
1371         return (0);
1372 }
1373
1374 static void
1375 daschedule(struct cam_periph *periph)
1376 {
1377         struct da_softc *softc = (struct da_softc *)periph->softc;
1378
1379         if (softc->state != DA_STATE_NORMAL)
1380                 return;
1381
1382         /* Check if we have more work to do. */
1383         if (bioq_first(&softc->bio_queue) ||
1384             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1385             softc->tur) {
1386                 xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1387         }
1388 }
1389
1390 /*
1391  * Actually translate the requested transfer into one the physical driver
1392  * can understand.  The transfer is described by a buf and will include
1393  * only one physical transfer.
1394  */
1395 static void
1396 dastrategy(struct bio *bp)
1397 {
1398         struct cam_periph *periph;
1399         struct da_softc *softc;
1400
1401         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1402         softc = (struct da_softc *)periph->softc;
1403
1404         cam_periph_lock(periph);
1405
1406         /*
1407          * If the device has been made invalid, error out
1408          */
1409         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1410                 cam_periph_unlock(periph);
1411                 biofinish(bp, NULL, ENXIO);
1412                 return;
1413         }
1414
1415         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1416
1417         /*
1418          * Place it in the queue of disk activities for this disk
1419          */
1420         if (bp->bio_cmd == BIO_DELETE) {
1421                 bioq_disksort(&softc->delete_queue, bp);
1422         } else if (DA_SIO) {
1423                 bioq_disksort(&softc->bio_queue, bp);
1424         } else {
1425                 bioq_insert_tail(&softc->bio_queue, bp);
1426         }
1427
1428         /*
1429          * Schedule ourselves for performing the work.
1430          */
1431         daschedule(periph);
1432         cam_periph_unlock(periph);
1433
1434         return;
1435 }
1436
1437 static int
1438 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1439 {
1440         struct      cam_periph *periph;
1441         struct      da_softc *softc;
1442         u_int       secsize;
1443         struct      ccb_scsiio csio;
1444         struct      disk *dp;
1445         int         error = 0;
1446
1447         dp = arg;
1448         periph = dp->d_drv1;
1449         softc = (struct da_softc *)periph->softc;
1450         cam_periph_lock(periph);
1451         secsize = softc->params.secsize;
1452
1453         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1454                 cam_periph_unlock(periph);
1455                 return (ENXIO);
1456         }
1457
1458         if (length > 0) {
1459                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1460                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1461                 scsi_read_write(&csio,
1462                                 /*retries*/0,
1463                                 dadone,
1464                                 MSG_ORDERED_Q_TAG,
1465                                 /*read*/SCSI_RW_WRITE,
1466                                 /*byte2*/0,
1467                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1468                                 offset / secsize,
1469                                 length / secsize,
1470                                 /*data_ptr*/(u_int8_t *) virtual,
1471                                 /*dxfer_len*/length,
1472                                 /*sense_len*/SSD_FULL_SIZE,
1473                                 da_default_timeout * 1000);
1474                 xpt_polled_action((union ccb *)&csio);
1475
1476                 error = cam_periph_error((union ccb *)&csio,
1477                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1478                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1479                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1480                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1481                 if (error != 0)
1482                         printf("Aborting dump due to I/O error.\n");
1483                 cam_periph_unlock(periph);
1484                 return (error);
1485         }
1486
1487         /*
1488          * Sync the disk cache contents to the physical media.
1489          */
1490         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1491
1492                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1493                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1494                 scsi_synchronize_cache(&csio,
1495                                        /*retries*/0,
1496                                        /*cbfcnp*/dadone,
1497                                        MSG_SIMPLE_Q_TAG,
1498                                        /*begin_lba*/0,/* Cover the whole disk */
1499                                        /*lb_count*/0,
1500                                        SSD_FULL_SIZE,
1501                                        5 * 60 * 1000);
1502                 xpt_polled_action((union ccb *)&csio);
1503
1504                 error = cam_periph_error((union ccb *)&csio,
1505                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1506                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1507                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1508                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1509                 if (error != 0)
1510                         xpt_print(periph->path, "Synchronize cache failed\n");
1511         }
1512         cam_periph_unlock(periph);
1513         return (error);
1514 }
1515
1516 static int
1517 dagetattr(struct bio *bp)
1518 {
1519         int ret;
1520         struct cam_periph *periph;
1521
1522         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1523         cam_periph_lock(periph);
1524         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1525             periph->path);
1526         cam_periph_unlock(periph);
1527         if (ret == 0)
1528                 bp->bio_completed = bp->bio_length;
1529         return ret;
1530 }
1531
1532 static void
1533 dainit(void)
1534 {
1535         cam_status status;
1536
1537         /*
1538          * Install a global async callback.  This callback will
1539          * receive async callbacks like "new device found".
1540          */
1541         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1542
1543         if (status != CAM_REQ_CMP) {
1544                 printf("da: Failed to attach master async callback "
1545                        "due to status 0x%x!\n", status);
1546         } else if (da_send_ordered) {
1547
1548                 /* Register our shutdown event handler */
1549                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1550                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1551                     printf("dainit: shutdown event registration failed!\n");
1552         }
1553 }
1554
1555 /*
1556  * Callback from GEOM, called when it has finished cleaning up its
1557  * resources.
1558  */
1559 static void
1560 dadiskgonecb(struct disk *dp)
1561 {
1562         struct cam_periph *periph;
1563
1564         periph = (struct cam_periph *)dp->d_drv1;
1565         cam_periph_release(periph);
1566 }
1567
1568 static void
1569 daoninvalidate(struct cam_periph *periph)
1570 {
1571         struct da_softc *softc;
1572
1573         softc = (struct da_softc *)periph->softc;
1574
1575         /*
1576          * De-register any async callbacks.
1577          */
1578         xpt_register_async(0, daasync, periph, periph->path);
1579
1580         softc->flags |= DA_FLAG_PACK_INVALID;
1581
1582         /*
1583          * Return all queued I/O with ENXIO.
1584          * XXX Handle any transactions queued to the card
1585          *     with XPT_ABORT_CCB.
1586          */
1587         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1588         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1589
1590         /*
1591          * Tell GEOM that we've gone away, we'll get a callback when it is
1592          * done cleaning up its resources.
1593          */
1594         disk_gone(softc->disk);
1595 }
1596
1597 static void
1598 dacleanup(struct cam_periph *periph)
1599 {
1600         struct da_softc *softc;
1601
1602         softc = (struct da_softc *)periph->softc;
1603
1604         cam_periph_unlock(periph);
1605
1606         /*
1607          * If we can't free the sysctl tree, oh well...
1608          */
1609         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1610             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1611                 xpt_print(periph->path, "can't remove sysctl context\n");
1612         }
1613
1614         callout_drain(&softc->mediapoll_c);
1615         disk_destroy(softc->disk);
1616         callout_drain(&softc->sendordered_c);
1617         free(softc, M_DEVBUF);
1618         cam_periph_lock(periph);
1619 }
1620
1621 static void
1622 daasync(void *callback_arg, u_int32_t code,
1623         struct cam_path *path, void *arg)
1624 {
1625         struct cam_periph *periph;
1626         struct da_softc *softc;
1627
1628         periph = (struct cam_periph *)callback_arg;
1629         switch (code) {
1630         case AC_FOUND_DEVICE:
1631         {
1632                 struct ccb_getdev *cgd;
1633                 cam_status status;
1634
1635                 cgd = (struct ccb_getdev *)arg;
1636                 if (cgd == NULL)
1637                         break;
1638
1639                 if (cgd->protocol != PROTO_SCSI)
1640                         break;
1641
1642                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1643                     && SID_TYPE(&cgd->inq_data) != T_RBC
1644                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1645                         break;
1646
1647                 /*
1648                  * Allocate a peripheral instance for
1649                  * this device and start the probe
1650                  * process.
1651                  */
1652                 status = cam_periph_alloc(daregister, daoninvalidate,
1653                                           dacleanup, dastart,
1654                                           "da", CAM_PERIPH_BIO,
1655                                           path, daasync,
1656                                           AC_FOUND_DEVICE, cgd);
1657
1658                 if (status != CAM_REQ_CMP
1659                  && status != CAM_REQ_INPROG)
1660                         printf("daasync: Unable to attach to new device "
1661                                 "due to status 0x%x\n", status);
1662                 return;
1663         }
1664         case AC_ADVINFO_CHANGED:
1665         {
1666                 uintptr_t buftype;
1667
1668                 buftype = (uintptr_t)arg;
1669                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1670                         struct da_softc *softc;
1671
1672                         softc = periph->softc;
1673                         disk_attr_changed(softc->disk, "GEOM::physpath",
1674                                           M_NOWAIT);
1675                 }
1676                 break;
1677         }
1678         case AC_UNIT_ATTENTION:
1679         {
1680                 union ccb *ccb;
1681                 int error_code, sense_key, asc, ascq;
1682
1683                 softc = (struct da_softc *)periph->softc;
1684                 ccb = (union ccb *)arg;
1685
1686                 /*
1687                  * Handle all UNIT ATTENTIONs except our own,
1688                  * as they will be handled by daerror().
1689                  */
1690                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1691                     scsi_extract_sense_ccb(ccb,
1692                      &error_code, &sense_key, &asc, &ascq)) {
1693                         if (asc == 0x2A && ascq == 0x09) {
1694                                 xpt_print(ccb->ccb_h.path,
1695                                     "Capacity data has changed\n");
1696                                 softc->flags &= ~DA_FLAG_PROBED;
1697                                 dareprobe(periph);
1698                         } else if (asc == 0x28 && ascq == 0x00) {
1699                                 softc->flags &= ~DA_FLAG_PROBED;
1700                                 disk_media_changed(softc->disk, M_NOWAIT);
1701                         } else if (asc == 0x3F && ascq == 0x03) {
1702                                 xpt_print(ccb->ccb_h.path,
1703                                     "INQUIRY data has changed\n");
1704                                 softc->flags &= ~DA_FLAG_PROBED;
1705                                 dareprobe(periph);
1706                         }
1707                 }
1708                 cam_periph_async(periph, code, path, arg);
1709                 break;
1710         }
1711         case AC_SCSI_AEN:
1712                 softc = (struct da_softc *)periph->softc;
1713                 if (!softc->tur) {
1714                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1715                                 softc->tur = 1;
1716                                 daschedule(periph);
1717                         }
1718                 }
1719                 /* FALLTHROUGH */
1720         case AC_SENT_BDR:
1721         case AC_BUS_RESET:
1722         {
1723                 struct ccb_hdr *ccbh;
1724
1725                 softc = (struct da_softc *)periph->softc;
1726                 /*
1727                  * Don't fail on the expected unit attention
1728                  * that will occur.
1729                  */
1730                 softc->flags |= DA_FLAG_RETRY_UA;
1731                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1732                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1733                 break;
1734         }
1735         default:
1736                 break;
1737         }
1738         cam_periph_async(periph, code, path, arg);
1739 }
1740
1741 static void
1742 dasysctlinit(void *context, int pending)
1743 {
1744         struct cam_periph *periph;
1745         struct da_softc *softc;
1746         char tmpstr[80], tmpstr2[80];
1747         struct ccb_trans_settings cts;
1748
1749         periph = (struct cam_periph *)context;
1750         /*
1751          * periph was held for us when this task was enqueued
1752          */
1753         if (periph->flags & CAM_PERIPH_INVALID) {
1754                 cam_periph_release(periph);
1755                 return;
1756         }
1757
1758         softc = (struct da_softc *)periph->softc;
1759         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1760         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1761
1762         sysctl_ctx_init(&softc->sysctl_ctx);
1763         softc->flags |= DA_FLAG_SCTX_INIT;
1764         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1765                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1766                 CTLFLAG_RD, 0, tmpstr);
1767         if (softc->sysctl_tree == NULL) {
1768                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1769                 cam_periph_release(periph);
1770                 return;
1771         }
1772
1773         /*
1774          * Now register the sysctl handler, so the user can change the value on
1775          * the fly.
1776          */
1777         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1778                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1779                 softc, 0, dadeletemethodsysctl, "A",
1780                 "BIO_DELETE execution method");
1781         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1782                 OID_AUTO, "delete_max", CTLTYPE_U64 | CTLFLAG_RW,
1783                 softc, 0, dadeletemaxsysctl, "Q",
1784                 "Maximum BIO_DELETE size");
1785         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1786                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1787                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1788                 "Minimum CDB size");
1789         SYSCTL_ADD_INT(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1790                 OID_AUTO, "sort_io_queue", CTLFLAG_RW, &softc->sort_io_queue, 0,
1791                 "Sort IO queue to try and optimise disk access patterns");
1792
1793         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1794                        SYSCTL_CHILDREN(softc->sysctl_tree),
1795                        OID_AUTO,
1796                        "error_inject",
1797                        CTLFLAG_RW,
1798                        &softc->error_inject,
1799                        0,
1800                        "error_inject leaf");
1801
1802
1803         /*
1804          * Add some addressing info.
1805          */
1806         memset(&cts, 0, sizeof (cts));
1807         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1808         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1809         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1810         cam_periph_lock(periph);
1811         xpt_action((union ccb *)&cts);
1812         cam_periph_unlock(periph);
1813         if (cts.ccb_h.status != CAM_REQ_CMP) {
1814                 cam_periph_release(periph);
1815                 return;
1816         }
1817         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1818                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1819                 if (fc->valid & CTS_FC_VALID_WWPN) {
1820                         softc->wwpn = fc->wwpn;
1821                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1822                             SYSCTL_CHILDREN(softc->sysctl_tree),
1823                             OID_AUTO, "wwpn", CTLFLAG_RD,
1824                             &softc->wwpn, "World Wide Port Name");
1825                 }
1826         }
1827         cam_periph_release(periph);
1828 }
1829
1830 static int
1831 dadeletemaxsysctl(SYSCTL_HANDLER_ARGS)
1832 {
1833         int error;
1834         uint64_t value;
1835         struct da_softc *softc;
1836
1837         softc = (struct da_softc *)arg1;
1838
1839         value = softc->disk->d_delmaxsize;
1840         error = sysctl_handle_64(oidp, &value, 0, req);
1841         if ((error != 0) || (req->newptr == NULL))
1842                 return (error);
1843
1844         /* only accept values smaller than the calculated value */
1845         if (value > dadeletemaxsize(softc, softc->delete_method)) {
1846                 return (EINVAL);
1847         }
1848         softc->disk->d_delmaxsize = value;
1849
1850         return (0);
1851 }
1852
1853 static int
1854 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1855 {
1856         int error, value;
1857
1858         value = *(int *)arg1;
1859
1860         error = sysctl_handle_int(oidp, &value, 0, req);
1861
1862         if ((error != 0)
1863          || (req->newptr == NULL))
1864                 return (error);
1865
1866         /*
1867          * Acceptable values here are 6, 10, 12 or 16.
1868          */
1869         if (value < 6)
1870                 value = 6;
1871         else if ((value > 6)
1872               && (value <= 10))
1873                 value = 10;
1874         else if ((value > 10)
1875               && (value <= 12))
1876                 value = 12;
1877         else if (value > 12)
1878                 value = 16;
1879
1880         *(int *)arg1 = value;
1881
1882         return (0);
1883 }
1884
1885 static void
1886 dadeletemethodset(struct da_softc *softc, da_delete_methods delete_method)
1887 {
1888
1889
1890         softc->delete_method = delete_method;
1891         softc->disk->d_delmaxsize = dadeletemaxsize(softc, delete_method);
1892         softc->delete_func = da_delete_functions[delete_method];
1893
1894         if (softc->delete_method > DA_DELETE_DISABLE)
1895                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
1896         else
1897                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
1898 }
1899
1900 static off_t
1901 dadeletemaxsize(struct da_softc *softc, da_delete_methods delete_method)
1902 {
1903         off_t sectors;
1904
1905         switch(delete_method) {
1906         case DA_DELETE_UNMAP:
1907                 sectors = (off_t)softc->unmap_max_lba;
1908                 break;
1909         case DA_DELETE_ATA_TRIM:
1910                 sectors = (off_t)ATA_DSM_RANGE_MAX * softc->trim_max_ranges;
1911                 break;
1912         case DA_DELETE_WS16:
1913                 sectors = (off_t)min(softc->ws_max_blks, WS16_MAX_BLKS);
1914                 break;
1915         case DA_DELETE_ZERO:
1916         case DA_DELETE_WS10:
1917                 sectors = (off_t)min(softc->ws_max_blks, WS10_MAX_BLKS);
1918                 break;
1919         default:
1920                 return 0;
1921         }
1922
1923         return (off_t)softc->params.secsize *
1924             min(sectors, (off_t)softc->params.sectors);
1925 }
1926
1927 static void
1928 daprobedone(struct cam_periph *periph, union ccb *ccb)
1929 {
1930         struct da_softc *softc;
1931
1932         softc = (struct da_softc *)periph->softc;
1933
1934         dadeletemethodchoose(softc, DA_DELETE_NONE);
1935
1936         if (bootverbose && (softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1937                 char buf[80];
1938                 int i, sep;
1939
1940                 snprintf(buf, sizeof(buf), "Delete methods: <");
1941                 sep = 0;
1942                 for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1943                         if (softc->delete_available & (1 << i)) {
1944                                 if (sep) {
1945                                         strlcat(buf, ",", sizeof(buf));
1946                                 } else {
1947                                     sep = 1;
1948                                 }
1949                                 strlcat(buf, da_delete_method_names[i],
1950                                     sizeof(buf));
1951                                 if (i == softc->delete_method) {
1952                                         strlcat(buf, "(*)", sizeof(buf));
1953                                 }
1954                         }
1955                 }
1956                 if (sep == 0) {
1957                         if (softc->delete_method == DA_DELETE_NONE)
1958                                 strlcat(buf, "NONE(*)", sizeof(buf));
1959                         else
1960                                 strlcat(buf, "DISABLED(*)", sizeof(buf));
1961                 }
1962                 strlcat(buf, ">", sizeof(buf));
1963                 printf("%s%d: %s\n", periph->periph_name,
1964                     periph->unit_number, buf);
1965         }
1966
1967         /*
1968          * Since our peripheral may be invalidated by an error
1969          * above or an external event, we must release our CCB
1970          * before releasing the probe lock on the peripheral.
1971          * The peripheral will only go away once the last lock
1972          * is removed, and we need it around for the CCB release
1973          * operation.
1974          */
1975         xpt_release_ccb(ccb);
1976         softc->state = DA_STATE_NORMAL;
1977         softc->flags |= DA_FLAG_PROBED;
1978         daschedule(periph);
1979         wakeup(&softc->disk->d_mediasize);
1980         if ((softc->flags & DA_FLAG_ANNOUNCED) == 0) {
1981                 softc->flags |= DA_FLAG_ANNOUNCED;
1982                 cam_periph_unhold(periph);
1983         } else
1984                 cam_periph_release_locked(periph);
1985 }
1986
1987 static void
1988 dadeletemethodchoose(struct da_softc *softc, da_delete_methods default_method)
1989 {
1990         int i, delete_method;
1991
1992         delete_method = default_method;
1993
1994         /*
1995          * Use the pre-defined order to choose the best
1996          * performing delete.
1997          */
1998         for (i = DA_DELETE_MIN; i <= DA_DELETE_MAX; i++) {
1999                 if (softc->delete_available & (1 << i)) {
2000                         dadeletemethodset(softc, i);
2001                         return;
2002                 }
2003         }
2004         dadeletemethodset(softc, delete_method);
2005 }
2006
2007 static int
2008 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
2009 {
2010         char buf[16];
2011         const char *p;
2012         struct da_softc *softc;
2013         int i, error, methods, value;
2014
2015         softc = (struct da_softc *)arg1;
2016
2017         value = softc->delete_method;
2018         if (value < 0 || value > DA_DELETE_MAX)
2019                 p = "UNKNOWN";
2020         else
2021                 p = da_delete_method_names[value];
2022         strncpy(buf, p, sizeof(buf));
2023         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
2024         if (error != 0 || req->newptr == NULL)
2025                 return (error);
2026         methods = softc->delete_available | (1 << DA_DELETE_DISABLE);
2027         for (i = 0; i <= DA_DELETE_MAX; i++) {
2028                 if (!(methods & (1 << i)) ||
2029                     strcmp(buf, da_delete_method_names[i]) != 0)
2030                         continue;
2031                 dadeletemethodset(softc, i);
2032                 return (0);
2033         }
2034         return (EINVAL);
2035 }
2036
2037 static cam_status
2038 daregister(struct cam_periph *periph, void *arg)
2039 {
2040         struct da_softc *softc;
2041         struct ccb_pathinq cpi;
2042         struct ccb_getdev *cgd;
2043         char tmpstr[80];
2044         caddr_t match;
2045
2046         cgd = (struct ccb_getdev *)arg;
2047         if (cgd == NULL) {
2048                 printf("daregister: no getdev CCB, can't register device\n");
2049                 return(CAM_REQ_CMP_ERR);
2050         }
2051
2052         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
2053             M_NOWAIT|M_ZERO);
2054
2055         if (softc == NULL) {
2056                 printf("daregister: Unable to probe new device. "
2057                        "Unable to allocate softc\n");
2058                 return(CAM_REQ_CMP_ERR);
2059         }
2060
2061         LIST_INIT(&softc->pending_ccbs);
2062         softc->state = DA_STATE_PROBE_RC;
2063         bioq_init(&softc->bio_queue);
2064         bioq_init(&softc->delete_queue);
2065         bioq_init(&softc->delete_run_queue);
2066         if (SID_IS_REMOVABLE(&cgd->inq_data))
2067                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
2068         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
2069         softc->unmap_max_lba = UNMAP_RANGE_MAX;
2070         softc->ws_max_blks = WS16_MAX_BLKS;
2071         softc->trim_max_ranges = ATA_TRIM_MAX_RANGES;
2072         softc->sort_io_queue = -1;
2073
2074         periph->softc = softc;
2075
2076         /*
2077          * See if this device has any quirks.
2078          */
2079         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
2080                                (caddr_t)da_quirk_table,
2081                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
2082                                sizeof(*da_quirk_table), scsi_inquiry_match);
2083
2084         if (match != NULL)
2085                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
2086         else
2087                 softc->quirks = DA_Q_NONE;
2088
2089         /* Check if the SIM does not want 6 byte commands */
2090         bzero(&cpi, sizeof(cpi));
2091         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2092         cpi.ccb_h.func_code = XPT_PATH_INQ;
2093         xpt_action((union ccb *)&cpi);
2094         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
2095                 softc->quirks |= DA_Q_NO_6_BYTE;
2096
2097         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
2098
2099         /*
2100          * Take an exclusive refcount on the periph while dastart is called
2101          * to finish the probe.  The reference will be dropped in dadone at
2102          * the end of probe.
2103          */
2104         (void)cam_periph_hold(periph, PRIBIO);
2105
2106         /*
2107          * Schedule a periodic event to occasionally send an
2108          * ordered tag to a device.
2109          */
2110         callout_init_mtx(&softc->sendordered_c, cam_periph_mtx(periph), 0);
2111         callout_reset(&softc->sendordered_c,
2112             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2113             dasendorderedtag, softc);
2114
2115         cam_periph_unlock(periph);
2116         /*
2117          * RBC devices don't have to support READ(6), only READ(10).
2118          */
2119         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
2120                 softc->minimum_cmd_size = 10;
2121         else
2122                 softc->minimum_cmd_size = 6;
2123
2124         /*
2125          * Load the user's default, if any.
2126          */
2127         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
2128                  periph->unit_number);
2129         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
2130
2131         /*
2132          * 6, 10, 12 and 16 are the currently permissible values.
2133          */
2134         if (softc->minimum_cmd_size < 6)
2135                 softc->minimum_cmd_size = 6;
2136         else if ((softc->minimum_cmd_size > 6)
2137               && (softc->minimum_cmd_size <= 10))
2138                 softc->minimum_cmd_size = 10;
2139         else if ((softc->minimum_cmd_size > 10)
2140               && (softc->minimum_cmd_size <= 12))
2141                 softc->minimum_cmd_size = 12;
2142         else if (softc->minimum_cmd_size > 12)
2143                 softc->minimum_cmd_size = 16;
2144
2145         /* Predict whether device may support READ CAPACITY(16). */
2146         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 &&
2147             (softc->quirks & DA_Q_NO_RC16) == 0) {
2148                 softc->flags |= DA_FLAG_CAN_RC16;
2149                 softc->state = DA_STATE_PROBE_RC16;
2150         }
2151
2152         /*
2153          * Register this media as a disk.
2154          */
2155         softc->disk = disk_alloc();
2156         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
2157                           periph->unit_number, 0,
2158                           DEVSTAT_BS_UNAVAILABLE,
2159                           SID_TYPE(&cgd->inq_data) |
2160                           XPORT_DEVSTAT_TYPE(cpi.transport),
2161                           DEVSTAT_PRIORITY_DISK);
2162         softc->disk->d_open = daopen;
2163         softc->disk->d_close = daclose;
2164         softc->disk->d_strategy = dastrategy;
2165         softc->disk->d_dump = dadump;
2166         softc->disk->d_getattr = dagetattr;
2167         softc->disk->d_gone = dadiskgonecb;
2168         softc->disk->d_name = "da";
2169         softc->disk->d_drv1 = periph;
2170         if (cpi.maxio == 0)
2171                 softc->maxio = DFLTPHYS;        /* traditional default */
2172         else if (cpi.maxio > MAXPHYS)
2173                 softc->maxio = MAXPHYS;         /* for safety */
2174         else
2175                 softc->maxio = cpi.maxio;
2176         softc->disk->d_maxsize = softc->maxio;
2177         softc->disk->d_unit = periph->unit_number;
2178         softc->disk->d_flags = DISKFLAG_DIRECT_COMPLETION;
2179         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
2180                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
2181         if ((cpi.hba_misc & PIM_UNMAPPED) != 0)
2182                 softc->disk->d_flags |= DISKFLAG_UNMAPPED_BIO;
2183         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
2184             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
2185         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
2186         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
2187             cgd->inq_data.product, sizeof(cgd->inq_data.product),
2188             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
2189         softc->disk->d_hba_vendor = cpi.hba_vendor;
2190         softc->disk->d_hba_device = cpi.hba_device;
2191         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
2192         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
2193
2194         /*
2195          * Acquire a reference to the periph before we register with GEOM.
2196          * We'll release this reference once GEOM calls us back (via
2197          * dadiskgonecb()) telling us that our provider has been freed.
2198          */
2199         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
2200                 xpt_print(periph->path, "%s: lost periph during "
2201                           "registration!\n", __func__);
2202                 cam_periph_lock(periph);
2203                 return (CAM_REQ_CMP_ERR);
2204         }
2205
2206         disk_create(softc->disk, DISK_VERSION);
2207         cam_periph_lock(periph);
2208
2209         /*
2210          * Add async callbacks for events of interest.
2211          * I don't bother checking if this fails as,
2212          * in most cases, the system will function just
2213          * fine without them and the only alternative
2214          * would be to not attach the device on failure.
2215          */
2216         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
2217             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
2218             daasync, periph, periph->path);
2219
2220         /*
2221          * Emit an attribute changed notification just in case
2222          * physical path information arrived before our async
2223          * event handler was registered, but after anyone attaching
2224          * to our disk device polled it.
2225          */
2226         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
2227
2228         /*
2229          * Schedule a periodic media polling events.
2230          */
2231         callout_init_mtx(&softc->mediapoll_c, cam_periph_mtx(periph), 0);
2232         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
2233             (cgd->inq_flags & SID_AEN) == 0 &&
2234             da_poll_period != 0)
2235                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
2236                     damediapoll, periph);
2237
2238         xpt_schedule(periph, CAM_PRIORITY_DEV);
2239
2240         return(CAM_REQ_CMP);
2241 }
2242
2243 static void
2244 dastart(struct cam_periph *periph, union ccb *start_ccb)
2245 {
2246         struct da_softc *softc;
2247
2248         softc = (struct da_softc *)periph->softc;
2249
2250         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
2251
2252 skipstate:
2253         switch (softc->state) {
2254         case DA_STATE_NORMAL:
2255         {
2256                 struct bio *bp;
2257                 uint8_t tag_code;
2258
2259                 /* Run BIO_DELETE if not running yet. */
2260                 if (!softc->delete_running &&
2261                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
2262                         if (softc->delete_func != NULL) {
2263                                 softc->delete_func(periph, start_ccb, bp);
2264                                 goto out;
2265                         } else {
2266                                 bioq_flush(&softc->delete_queue, NULL, 0);
2267                                 /* FALLTHROUGH */
2268                         }
2269                 }
2270
2271                 /* Run regular command. */
2272                 bp = bioq_takefirst(&softc->bio_queue);
2273                 if (bp == NULL) {
2274                         if (softc->tur) {
2275                                 softc->tur = 0;
2276                                 scsi_test_unit_ready(&start_ccb->csio,
2277                                      /*retries*/ da_retry_count,
2278                                      dadone,
2279                                      MSG_SIMPLE_Q_TAG,
2280                                      SSD_FULL_SIZE,
2281                                      da_default_timeout * 1000);
2282                                 start_ccb->ccb_h.ccb_bp = NULL;
2283                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
2284                                 xpt_action(start_ccb);
2285                         } else
2286                                 xpt_release_ccb(start_ccb);
2287                         break;
2288                 }
2289                 if (softc->tur) {
2290                         softc->tur = 0;
2291                         cam_periph_release_locked(periph);
2292                 }
2293
2294                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
2295                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
2296                         softc->flags &= ~DA_FLAG_NEED_OTAG;
2297                         softc->flags |= DA_FLAG_WAS_OTAG;
2298                         tag_code = MSG_ORDERED_Q_TAG;
2299                 } else {
2300                         tag_code = MSG_SIMPLE_Q_TAG;
2301                 }
2302
2303                 switch (bp->bio_cmd) {
2304                 case BIO_WRITE:
2305                         softc->flags |= DA_FLAG_DIRTY;
2306                         /* FALLTHROUGH */
2307                 case BIO_READ:
2308                         scsi_read_write(&start_ccb->csio,
2309                                         /*retries*/da_retry_count,
2310                                         /*cbfcnp*/dadone,
2311                                         /*tag_action*/tag_code,
2312                                         /*read_op*/(bp->bio_cmd == BIO_READ ?
2313                                         SCSI_RW_READ : SCSI_RW_WRITE) |
2314                                         ((bp->bio_flags & BIO_UNMAPPED) != 0 ?
2315                                         SCSI_RW_BIO : 0),
2316                                         /*byte2*/0,
2317                                         softc->minimum_cmd_size,
2318                                         /*lba*/bp->bio_pblkno,
2319                                         /*block_count*/bp->bio_bcount /
2320                                         softc->params.secsize,
2321                                         /*data_ptr*/ (bp->bio_flags &
2322                                         BIO_UNMAPPED) != 0 ? (void *)bp :
2323                                         bp->bio_data,
2324                                         /*dxfer_len*/ bp->bio_bcount,
2325                                         /*sense_len*/SSD_FULL_SIZE,
2326                                         da_default_timeout * 1000);
2327                         break;
2328                 case BIO_FLUSH:
2329                         /*
2330                          * BIO_FLUSH doesn't currently communicate
2331                          * range data, so we synchronize the cache
2332                          * over the whole disk.  We also force
2333                          * ordered tag semantics the flush applies
2334                          * to all previously queued I/O.
2335                          */
2336                         scsi_synchronize_cache(&start_ccb->csio,
2337                                                /*retries*/1,
2338                                                /*cbfcnp*/dadone,
2339                                                MSG_ORDERED_Q_TAG,
2340                                                /*begin_lba*/0,
2341                                                /*lb_count*/0,
2342                                                SSD_FULL_SIZE,
2343                                                da_default_timeout*1000);
2344                         break;
2345                 }
2346                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
2347                 start_ccb->ccb_h.flags |= CAM_UNLOCKED;
2348
2349 out:
2350                 LIST_INSERT_HEAD(&softc->pending_ccbs,
2351                                  &start_ccb->ccb_h, periph_links.le);
2352
2353                 /* We expect a unit attention from this device */
2354                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2355                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2356                         softc->flags &= ~DA_FLAG_RETRY_UA;
2357                 }
2358
2359                 start_ccb->ccb_h.ccb_bp = bp;
2360                 softc->refcount++;
2361                 cam_periph_unlock(periph);
2362                 xpt_action(start_ccb);
2363                 cam_periph_lock(periph);
2364                 softc->refcount--;
2365
2366                 /* May have more work to do, so ensure we stay scheduled */
2367                 daschedule(periph);
2368                 break;
2369         }
2370         case DA_STATE_PROBE_RC:
2371         {
2372                 struct scsi_read_capacity_data *rcap;
2373
2374                 rcap = (struct scsi_read_capacity_data *)
2375                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2376                 if (rcap == NULL) {
2377                         printf("dastart: Couldn't malloc read_capacity data\n");
2378                         /* da_free_periph??? */
2379                         break;
2380                 }
2381                 scsi_read_capacity(&start_ccb->csio,
2382                                    /*retries*/da_retry_count,
2383                                    dadone,
2384                                    MSG_SIMPLE_Q_TAG,
2385                                    rcap,
2386                                    SSD_FULL_SIZE,
2387                                    /*timeout*/5000);
2388                 start_ccb->ccb_h.ccb_bp = NULL;
2389                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC;
2390                 xpt_action(start_ccb);
2391                 break;
2392         }
2393         case DA_STATE_PROBE_RC16:
2394         {
2395                 struct scsi_read_capacity_data_long *rcaplong;
2396
2397                 rcaplong = (struct scsi_read_capacity_data_long *)
2398                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2399                 if (rcaplong == NULL) {
2400                         printf("dastart: Couldn't malloc read_capacity data\n");
2401                         /* da_free_periph??? */
2402                         break;
2403                 }
2404                 scsi_read_capacity_16(&start_ccb->csio,
2405                                       /*retries*/ da_retry_count,
2406                                       /*cbfcnp*/ dadone,
2407                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
2408                                       /*lba*/ 0,
2409                                       /*reladr*/ 0,
2410                                       /*pmi*/ 0,
2411                                       /*rcap_buf*/ (uint8_t *)rcaplong,
2412                                       /*rcap_buf_len*/ sizeof(*rcaplong),
2413                                       /*sense_len*/ SSD_FULL_SIZE,
2414                                       /*timeout*/ da_default_timeout * 1000);
2415                 start_ccb->ccb_h.ccb_bp = NULL;
2416                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_RC16;
2417                 xpt_action(start_ccb);
2418                 break;
2419         }
2420         case DA_STATE_PROBE_LBP:
2421         {
2422                 struct scsi_vpd_logical_block_prov *lbp;
2423
2424                 if (!scsi_vpd_supported_page(periph, SVPD_LBP)) {
2425                         /*
2426                          * If we get here we don't support any SBC-3 delete
2427                          * methods with UNMAP as the Logical Block Provisioning
2428                          * VPD page support is required for devices which
2429                          * support it according to T10/1799-D Revision 31
2430                          * however older revisions of the spec don't mandate
2431                          * this so we currently don't remove these methods
2432                          * from the available set.
2433                          */
2434                         softc->state = DA_STATE_PROBE_BLK_LIMITS;
2435                         goto skipstate;
2436                 }
2437
2438                 lbp = (struct scsi_vpd_logical_block_prov *)
2439                         malloc(sizeof(*lbp), M_SCSIDA, M_NOWAIT|M_ZERO);
2440
2441                 if (lbp == NULL) {
2442                         printf("dastart: Couldn't malloc lbp data\n");
2443                         /* da_free_periph??? */
2444                         break;
2445                 }
2446
2447                 scsi_inquiry(&start_ccb->csio,
2448                              /*retries*/da_retry_count,
2449                              /*cbfcnp*/dadone,
2450                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2451                              /*inq_buf*/(u_int8_t *)lbp,
2452                              /*inq_len*/sizeof(*lbp),
2453                              /*evpd*/TRUE,
2454                              /*page_code*/SVPD_LBP,
2455                              /*sense_len*/SSD_MIN_SIZE,
2456                              /*timeout*/da_default_timeout * 1000);
2457                 start_ccb->ccb_h.ccb_bp = NULL;
2458                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_LBP;
2459                 xpt_action(start_ccb);
2460                 break;
2461         }
2462         case DA_STATE_PROBE_BLK_LIMITS:
2463         {
2464                 struct scsi_vpd_block_limits *block_limits;
2465
2466                 if (!scsi_vpd_supported_page(periph, SVPD_BLOCK_LIMITS)) {
2467                         /* Not supported skip to next probe */
2468                         softc->state = DA_STATE_PROBE_BDC;
2469                         goto skipstate;
2470                 }
2471
2472                 block_limits = (struct scsi_vpd_block_limits *)
2473                         malloc(sizeof(*block_limits), M_SCSIDA, M_NOWAIT|M_ZERO);
2474
2475                 if (block_limits == NULL) {
2476                         printf("dastart: Couldn't malloc block_limits data\n");
2477                         /* da_free_periph??? */
2478                         break;
2479                 }
2480
2481                 scsi_inquiry(&start_ccb->csio,
2482                              /*retries*/da_retry_count,
2483                              /*cbfcnp*/dadone,
2484                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2485                              /*inq_buf*/(u_int8_t *)block_limits,
2486                              /*inq_len*/sizeof(*block_limits),
2487                              /*evpd*/TRUE,
2488                              /*page_code*/SVPD_BLOCK_LIMITS,
2489                              /*sense_len*/SSD_MIN_SIZE,
2490                              /*timeout*/da_default_timeout * 1000);
2491                 start_ccb->ccb_h.ccb_bp = NULL;
2492                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BLK_LIMITS;
2493                 xpt_action(start_ccb);
2494                 break;
2495         }
2496         case DA_STATE_PROBE_BDC:
2497         {
2498                 struct scsi_vpd_block_characteristics *bdc;
2499
2500                 if (!scsi_vpd_supported_page(periph, SVPD_BDC)) {
2501                         softc->state = DA_STATE_PROBE_ATA;
2502                         goto skipstate;
2503                 }
2504
2505                 bdc = (struct scsi_vpd_block_characteristics *)
2506                         malloc(sizeof(*bdc), M_SCSIDA, M_NOWAIT|M_ZERO);
2507
2508                 if (bdc == NULL) {
2509                         printf("dastart: Couldn't malloc bdc data\n");
2510                         /* da_free_periph??? */
2511                         break;
2512                 }
2513
2514                 scsi_inquiry(&start_ccb->csio,
2515                              /*retries*/da_retry_count,
2516                              /*cbfcnp*/dadone,
2517                              /*tag_action*/MSG_SIMPLE_Q_TAG,
2518                              /*inq_buf*/(u_int8_t *)bdc,
2519                              /*inq_len*/sizeof(*bdc),
2520                              /*evpd*/TRUE,
2521                              /*page_code*/SVPD_BDC,
2522                              /*sense_len*/SSD_MIN_SIZE,
2523                              /*timeout*/da_default_timeout * 1000);
2524                 start_ccb->ccb_h.ccb_bp = NULL;
2525                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_BDC;
2526                 xpt_action(start_ccb);
2527                 break;
2528         }
2529         case DA_STATE_PROBE_ATA:
2530         {
2531                 struct ata_params *ata_params;
2532
2533                 if (!scsi_vpd_supported_page(periph, SVPD_ATA_INFORMATION)) {
2534                         daprobedone(periph, start_ccb);
2535                         break;
2536                 }
2537
2538                 ata_params = (struct ata_params*)
2539                         malloc(sizeof(*ata_params), M_SCSIDA, M_NOWAIT|M_ZERO);
2540
2541                 if (ata_params == NULL) {
2542                         printf("dastart: Couldn't malloc ata_params data\n");
2543                         /* da_free_periph??? */
2544                         break;
2545                 }
2546
2547                 scsi_ata_identify(&start_ccb->csio,
2548                                   /*retries*/da_retry_count,
2549                                   /*cbfcnp*/dadone,
2550                                   /*tag_action*/MSG_SIMPLE_Q_TAG,
2551                                   /*data_ptr*/(u_int8_t *)ata_params,
2552                                   /*dxfer_len*/sizeof(*ata_params),
2553                                   /*sense_len*/SSD_FULL_SIZE,
2554                                   /*timeout*/da_default_timeout * 1000);
2555                 start_ccb->ccb_h.ccb_bp = NULL;
2556                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE_ATA;
2557                 xpt_action(start_ccb);
2558                 break;
2559         }
2560         }
2561 }
2562
2563 /*
2564  * In each of the methods below, while its the caller's
2565  * responsibility to ensure the request will fit into a
2566  * single device request, we might have changed the delete
2567  * method due to the device incorrectly advertising either
2568  * its supported methods or limits.
2569  *
2570  * To prevent this causing further issues we validate the
2571  * against the methods limits, and warn which would
2572  * otherwise be unnecessary.
2573  */
2574 static void
2575 da_delete_unmap(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2576 {
2577         struct da_softc *softc = (struct da_softc *)periph->softc;;
2578         struct bio *bp1;
2579         uint8_t *buf = softc->unmap_buf;
2580         uint64_t lba, lastlba = (uint64_t)-1;
2581         uint64_t totalcount = 0;
2582         uint64_t count;
2583         uint32_t lastcount = 0, c;
2584         uint32_t off, ranges = 0;
2585
2586         /*
2587          * Currently this doesn't take the UNMAP
2588          * Granularity and Granularity Alignment
2589          * fields into account.
2590          *
2591          * This could result in both unoptimal unmap
2592          * requests as as well as UNMAP calls unmapping
2593          * fewer LBA's than requested.
2594          */
2595
2596         softc->delete_running = 1;
2597         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2598         bp1 = bp;
2599         do {
2600                 bioq_remove(&softc->delete_queue, bp1);
2601                 if (bp1 != bp)
2602                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2603                 lba = bp1->bio_pblkno;
2604                 count = bp1->bio_bcount / softc->params.secsize;
2605
2606                 /* Try to extend the previous range. */
2607                 if (lba == lastlba) {
2608                         c = omin(count, UNMAP_RANGE_MAX - lastcount);
2609                         lastcount += c;
2610                         off = ((ranges - 1) * UNMAP_RANGE_SIZE) +
2611                               UNMAP_HEAD_SIZE;
2612                         scsi_ulto4b(lastcount, &buf[off + 8]);
2613                         count -= c;
2614                         lba +=c;
2615                         totalcount += c;
2616                 }
2617
2618                 while (count > 0) {
2619                         c = omin(count, UNMAP_RANGE_MAX);
2620                         if (totalcount + c > softc->unmap_max_lba ||
2621                             ranges >= softc->unmap_max_ranges) {
2622                                 xpt_print(periph->path,
2623                                     "%s issuing short delete %ld > %ld"
2624                                     "|| %d >= %d",
2625                                     da_delete_method_desc[softc->delete_method],
2626                                     totalcount + c, softc->unmap_max_lba,
2627                                     ranges, softc->unmap_max_ranges);
2628                                 break;
2629                         }
2630                         off = (ranges * UNMAP_RANGE_SIZE) + UNMAP_HEAD_SIZE;
2631                         scsi_u64to8b(lba, &buf[off + 0]);
2632                         scsi_ulto4b(c, &buf[off + 8]);
2633                         lba += c;
2634                         totalcount += c;
2635                         ranges++;
2636                         count -= c;
2637                         lastcount = c;
2638                 }
2639                 lastlba = lba;
2640                 bp1 = bioq_first(&softc->delete_queue);
2641                 if (bp1 == NULL || ranges >= softc->unmap_max_ranges ||
2642                     totalcount + bp1->bio_bcount /
2643                     softc->params.secsize > softc->unmap_max_lba)
2644                         break;
2645         } while (1);
2646         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
2647         scsi_ulto2b(ranges * 16, &buf[2]);
2648
2649         scsi_unmap(&ccb->csio,
2650                    /*retries*/da_retry_count,
2651                    /*cbfcnp*/dadone,
2652                    /*tag_action*/MSG_SIMPLE_Q_TAG,
2653                    /*byte2*/0,
2654                    /*data_ptr*/ buf,
2655                    /*dxfer_len*/ ranges * 16 + 8,
2656                    /*sense_len*/SSD_FULL_SIZE,
2657                    da_default_timeout * 1000);
2658         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2659         ccb->ccb_h.flags |= CAM_UNLOCKED;
2660 }
2661
2662 static void
2663 da_delete_trim(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2664 {
2665         struct da_softc *softc = (struct da_softc *)periph->softc;
2666         struct bio *bp1;
2667         uint8_t *buf = softc->unmap_buf;
2668         uint64_t lastlba = (uint64_t)-1;
2669         uint64_t count;
2670         uint64_t lba;
2671         uint32_t lastcount = 0, c, requestcount;
2672         int ranges = 0, off, block_count;
2673
2674         softc->delete_running = 1;
2675         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
2676         bp1 = bp;
2677         do {
2678                 bioq_remove(&softc->delete_queue, bp1);
2679                 if (bp1 != bp)
2680                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2681                 lba = bp1->bio_pblkno;
2682                 count = bp1->bio_bcount / softc->params.secsize;
2683                 requestcount = count;
2684
2685                 /* Try to extend the previous range. */
2686                 if (lba == lastlba) {
2687                         c = min(count, ATA_DSM_RANGE_MAX - lastcount);
2688                         lastcount += c;
2689                         off = (ranges - 1) * 8;
2690                         buf[off + 6] = lastcount & 0xff;
2691                         buf[off + 7] = (lastcount >> 8) & 0xff;
2692                         count -= c;
2693                         lba += c;
2694                 }
2695
2696                 while (count > 0) {
2697                         c = min(count, ATA_DSM_RANGE_MAX);
2698                         off = ranges * 8;
2699
2700                         buf[off + 0] = lba & 0xff;
2701                         buf[off + 1] = (lba >> 8) & 0xff;
2702                         buf[off + 2] = (lba >> 16) & 0xff;
2703                         buf[off + 3] = (lba >> 24) & 0xff;
2704                         buf[off + 4] = (lba >> 32) & 0xff;
2705                         buf[off + 5] = (lba >> 40) & 0xff;
2706                         buf[off + 6] = c & 0xff;
2707                         buf[off + 7] = (c >> 8) & 0xff;
2708                         lba += c;
2709                         ranges++;
2710                         count -= c;
2711                         lastcount = c;
2712                         if (count != 0 && ranges == softc->trim_max_ranges) {
2713                                 xpt_print(periph->path,
2714                                     "%s issuing short delete %ld > %ld\n",
2715                                     da_delete_method_desc[softc->delete_method],
2716                                     requestcount,
2717                                     (softc->trim_max_ranges - ranges) *
2718                                     ATA_DSM_RANGE_MAX);
2719                                 break;
2720                         }
2721                 }
2722                 lastlba = lba;
2723                 bp1 = bioq_first(&softc->delete_queue);
2724                 if (bp1 == NULL || bp1->bio_bcount / softc->params.secsize >
2725                     (softc->trim_max_ranges - ranges) * ATA_DSM_RANGE_MAX)
2726                         break;
2727         } while (1);
2728
2729         block_count = (ranges + ATA_DSM_BLK_RANGES - 1) / ATA_DSM_BLK_RANGES;
2730         scsi_ata_trim(&ccb->csio,
2731                       /*retries*/da_retry_count,
2732                       /*cbfcnp*/dadone,
2733                       /*tag_action*/MSG_SIMPLE_Q_TAG,
2734                       block_count,
2735                       /*data_ptr*/buf,
2736                       /*dxfer_len*/block_count * ATA_DSM_BLK_SIZE,
2737                       /*sense_len*/SSD_FULL_SIZE,
2738                       da_default_timeout * 1000);
2739         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2740         ccb->ccb_h.flags |= CAM_UNLOCKED;
2741 }
2742
2743 /*
2744  * We calculate ws_max_blks here based off d_delmaxsize instead
2745  * of using softc->ws_max_blks as it is absolute max for the
2746  * device not the protocol max which may well be lower.
2747  */
2748 static void
2749 da_delete_ws(struct cam_periph *periph, union ccb *ccb, struct bio *bp)
2750 {
2751         struct da_softc *softc;
2752         struct bio *bp1;
2753         uint64_t ws_max_blks;
2754         uint64_t lba;
2755         uint64_t count; /* forward compat with WS32 */
2756
2757         softc = (struct da_softc *)periph->softc;
2758         ws_max_blks = softc->disk->d_delmaxsize / softc->params.secsize;
2759         softc->delete_running = 1;
2760         lba = bp->bio_pblkno;
2761         count = 0;
2762         bp1 = bp;
2763         do {
2764                 bioq_remove(&softc->delete_queue, bp1);
2765                 if (bp1 != bp)
2766                         bioq_insert_tail(&softc->delete_run_queue, bp1);
2767                 count += bp1->bio_bcount / softc->params.secsize;
2768                 if (count > ws_max_blks) {
2769                         xpt_print(periph->path,
2770                             "%s issuing short delete %ld > %ld\n",
2771                             da_delete_method_desc[softc->delete_method],
2772                             count, ws_max_blks);
2773                         count = min(count, ws_max_blks);
2774                         break;
2775                 }
2776                 bp1 = bioq_first(&softc->delete_queue);
2777                 if (bp1 == NULL || lba + count != bp1->bio_pblkno ||
2778                     count + bp1->bio_bcount /
2779                     softc->params.secsize > ws_max_blks)
2780                         break;
2781         } while (1);
2782
2783         scsi_write_same(&ccb->csio,
2784                         /*retries*/da_retry_count,
2785                         /*cbfcnp*/dadone,
2786                         /*tag_action*/MSG_SIMPLE_Q_TAG,
2787                         /*byte2*/softc->delete_method ==
2788                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
2789                         softc->delete_method == DA_DELETE_WS16 ? 16 : 10,
2790                         /*lba*/lba,
2791                         /*block_count*/count,
2792                         /*data_ptr*/ __DECONST(void *, zero_region),
2793                         /*dxfer_len*/ softc->params.secsize,
2794                         /*sense_len*/SSD_FULL_SIZE,
2795                         da_default_timeout * 1000);
2796         ccb->ccb_h.ccb_state = DA_CCB_DELETE;
2797         ccb->ccb_h.flags |= CAM_UNLOCKED;
2798 }
2799
2800 static int
2801 cmd6workaround(union ccb *ccb)
2802 {
2803         struct scsi_rw_6 cmd6;
2804         struct scsi_rw_10 *cmd10;
2805         struct da_softc *softc;
2806         u_int8_t *cdb;
2807         struct bio *bp;
2808         int frozen;
2809
2810         cdb = ccb->csio.cdb_io.cdb_bytes;
2811         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2812
2813         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2814                 da_delete_methods old_method = softc->delete_method;
2815
2816                 /*
2817                  * Typically there are two reasons for failure here
2818                  * 1. Delete method was detected as supported but isn't
2819                  * 2. Delete failed due to invalid params e.g. too big
2820                  *
2821                  * While we will attempt to choose an alternative delete method
2822                  * this may result in short deletes if the existing delete
2823                  * requests from geom are big for the new method choosen.
2824                  *
2825                  * This method assumes that the error which triggered this
2826                  * will not retry the io otherwise a panic will occur
2827                  */
2828                 dadeleteflag(softc, old_method, 0);
2829                 dadeletemethodchoose(softc, DA_DELETE_DISABLE);
2830                 if (softc->delete_method == DA_DELETE_DISABLE)
2831                         xpt_print(ccb->ccb_h.path,
2832                                   "%s failed, disabling BIO_DELETE\n",
2833                                   da_delete_method_desc[old_method]);
2834                 else
2835                         xpt_print(ccb->ccb_h.path,
2836                                   "%s failed, switching to %s BIO_DELETE\n",
2837                                   da_delete_method_desc[old_method],
2838                                   da_delete_method_desc[softc->delete_method]);
2839
2840                 while ((bp = bioq_takefirst(&softc->delete_run_queue)) != NULL)
2841                         bioq_disksort(&softc->delete_queue, bp);
2842                 bioq_disksort(&softc->delete_queue,
2843                     (struct bio *)ccb->ccb_h.ccb_bp);
2844                 ccb->ccb_h.ccb_bp = NULL;
2845                 return (0);
2846         }
2847
2848         /* Detect unsupported PREVENT ALLOW MEDIUM REMOVAL. */
2849         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2850             (*cdb == PREVENT_ALLOW) &&
2851             (softc->quirks & DA_Q_NO_PREVENT) == 0) {
2852                 if (bootverbose)
2853                         xpt_print(ccb->ccb_h.path,
2854                             "PREVENT ALLOW MEDIUM REMOVAL not supported.\n");
2855                 softc->quirks |= DA_Q_NO_PREVENT;
2856                 return (0);
2857         }
2858
2859         /* Detect unsupported SYNCHRONIZE CACHE(10). */
2860         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) == 0 &&
2861             (*cdb == SYNCHRONIZE_CACHE) &&
2862             (softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
2863                 if (bootverbose)
2864                         xpt_print(ccb->ccb_h.path,
2865                             "SYNCHRONIZE CACHE(10) not supported.\n");
2866                 softc->quirks |= DA_Q_NO_SYNC_CACHE;
2867                 softc->disk->d_flags &= ~DISKFLAG_CANFLUSHCACHE;
2868                 return (0);
2869         }
2870
2871         /* Translation only possible if CDB is an array and cmd is R/W6 */
2872         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2873             (*cdb != READ_6 && *cdb != WRITE_6))
2874                 return 0;
2875
2876         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2877             "increasing minimum_cmd_size to 10.\n");
2878         softc->minimum_cmd_size = 10;
2879
2880         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2881         cmd10 = (struct scsi_rw_10 *)cdb;
2882         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2883         cmd10->byte2 = 0;
2884         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2885         cmd10->reserved = 0;
2886         scsi_ulto2b(cmd6.length, cmd10->length);
2887         cmd10->control = cmd6.control;
2888         ccb->csio.cdb_len = sizeof(*cmd10);
2889
2890         /* Requeue request, unfreezing queue if necessary */
2891         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2892         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2893         xpt_action(ccb);
2894         if (frozen) {
2895                 cam_release_devq(ccb->ccb_h.path,
2896                                  /*relsim_flags*/0,
2897                                  /*reduction*/0,
2898                                  /*timeout*/0,
2899                                  /*getcount_only*/0);
2900         }
2901         return (ERESTART);
2902 }
2903
2904 static void
2905 dadone(struct cam_periph *periph, union ccb *done_ccb)
2906 {
2907         struct da_softc *softc;
2908         struct ccb_scsiio *csio;
2909         u_int32_t  priority;
2910         da_ccb_state state;
2911
2912         softc = (struct da_softc *)periph->softc;
2913         priority = done_ccb->ccb_h.pinfo.priority;
2914
2915         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2916
2917         csio = &done_ccb->csio;
2918         state = csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK;
2919         switch (state) {
2920         case DA_CCB_BUFFER_IO:
2921         case DA_CCB_DELETE:
2922         {
2923                 struct bio *bp, *bp1;
2924
2925                 cam_periph_lock(periph);
2926                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2927                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2928                         int error;
2929                         int sf;
2930
2931                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2932                                 sf = SF_RETRY_UA;
2933                         else
2934                                 sf = 0;
2935
2936                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2937                         if (error == ERESTART) {
2938                                 /*
2939                                  * A retry was scheduled, so
2940                                  * just return.
2941                                  */
2942                                 cam_periph_unlock(periph);
2943                                 return;
2944                         }
2945                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2946                         if (error != 0) {
2947                                 int queued_error;
2948
2949                                 /*
2950                                  * return all queued I/O with EIO, so that
2951                                  * the client can retry these I/Os in the
2952                                  * proper order should it attempt to recover.
2953                                  */
2954                                 queued_error = EIO;
2955
2956                                 if (error == ENXIO
2957                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2958                                         /*
2959                                          * Catastrophic error.  Mark our pack as
2960                                          * invalid.
2961                                          */
2962                                         /*
2963                                          * XXX See if this is really a media
2964                                          * XXX change first?
2965                                          */
2966                                         xpt_print(periph->path,
2967                                             "Invalidating pack\n");
2968                                         softc->flags |= DA_FLAG_PACK_INVALID;
2969                                         queued_error = ENXIO;
2970                                 }
2971                                 bioq_flush(&softc->bio_queue, NULL,
2972                                            queued_error);
2973                                 if (bp != NULL) {
2974                                         bp->bio_error = error;
2975                                         bp->bio_resid = bp->bio_bcount;
2976                                         bp->bio_flags |= BIO_ERROR;
2977                                 }
2978                         } else if (bp != NULL) {
2979                                 if (state == DA_CCB_DELETE)
2980                                         bp->bio_resid = 0;
2981                                 else
2982                                         bp->bio_resid = csio->resid;
2983                                 bp->bio_error = 0;
2984                                 if (bp->bio_resid != 0)
2985                                         bp->bio_flags |= BIO_ERROR;
2986                         }
2987                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2988                                 cam_release_devq(done_ccb->ccb_h.path,
2989                                                  /*relsim_flags*/0,
2990                                                  /*reduction*/0,
2991                                                  /*timeout*/0,
2992                                                  /*getcount_only*/0);
2993                 } else if (bp != NULL) {
2994                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2995                                 panic("REQ_CMP with QFRZN");
2996                         if (state == DA_CCB_DELETE)
2997                                 bp->bio_resid = 0;
2998                         else
2999                                 bp->bio_resid = csio->resid;
3000                         if (csio->resid > 0)
3001                                 bp->bio_flags |= BIO_ERROR;
3002                         if (softc->error_inject != 0) {
3003                                 bp->bio_error = softc->error_inject;
3004                                 bp->bio_resid = bp->bio_bcount;
3005                                 bp->bio_flags |= BIO_ERROR;
3006                                 softc->error_inject = 0;
3007                         }
3008                 }
3009
3010                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
3011                 if (LIST_EMPTY(&softc->pending_ccbs))
3012                         softc->flags |= DA_FLAG_WAS_OTAG;
3013
3014                 xpt_release_ccb(done_ccb);
3015                 if (state == DA_CCB_DELETE) {
3016                         TAILQ_HEAD(, bio) queue;
3017
3018                         TAILQ_INIT(&queue);
3019                         TAILQ_CONCAT(&queue, &softc->delete_run_queue.queue, bio_queue);
3020                         softc->delete_run_queue.insert_point = NULL;
3021                         softc->delete_running = 0;
3022                         daschedule(periph);
3023                         cam_periph_unlock(periph);
3024                         while ((bp1 = TAILQ_FIRST(&queue)) != NULL) {
3025                                 TAILQ_REMOVE(&queue, bp1, bio_queue);
3026                                 bp1->bio_error = bp->bio_error;
3027                                 if (bp->bio_flags & BIO_ERROR) {
3028                                         bp1->bio_flags |= BIO_ERROR;
3029                                         bp1->bio_resid = bp1->bio_bcount;
3030                                 } else
3031                                         bp1->bio_resid = 0;
3032                                 biodone(bp1);
3033                         }
3034                 } else
3035                         cam_periph_unlock(periph);
3036                 if (bp != NULL)
3037                         biodone(bp);
3038                 return;
3039         }
3040         case DA_CCB_PROBE_RC:
3041         case DA_CCB_PROBE_RC16:
3042         {
3043                 struct     scsi_read_capacity_data *rdcap;
3044                 struct     scsi_read_capacity_data_long *rcaplong;
3045                 char       announce_buf[80];
3046                 int        lbp;
3047
3048                 lbp = 0;
3049                 rdcap = NULL;
3050                 rcaplong = NULL;
3051                 if (state == DA_CCB_PROBE_RC)
3052                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
3053                 else
3054                         rcaplong = (struct scsi_read_capacity_data_long *)
3055                                 csio->data_ptr;
3056
3057                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3058                         struct disk_params *dp;
3059                         uint32_t block_size;
3060                         uint64_t maxsector;
3061                         u_int lalba;    /* Lowest aligned LBA. */
3062
3063                         if (state == DA_CCB_PROBE_RC) {
3064                                 block_size = scsi_4btoul(rdcap->length);
3065                                 maxsector = scsi_4btoul(rdcap->addr);
3066                                 lalba = 0;
3067
3068                                 /*
3069                                  * According to SBC-2, if the standard 10
3070                                  * byte READ CAPACITY command returns 2^32,
3071                                  * we should issue the 16 byte version of
3072                                  * the command, since the device in question
3073                                  * has more sectors than can be represented
3074                                  * with the short version of the command.
3075                                  */
3076                                 if (maxsector == 0xffffffff) {
3077                                         free(rdcap, M_SCSIDA);
3078                                         xpt_release_ccb(done_ccb);
3079                                         softc->state = DA_STATE_PROBE_RC16;
3080                                         xpt_schedule(periph, priority);
3081                                         return;
3082                                 }
3083                         } else {
3084                                 block_size = scsi_4btoul(rcaplong->length);
3085                                 maxsector = scsi_8btou64(rcaplong->addr);
3086                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3087                         }
3088
3089                         /*
3090                          * Because GEOM code just will panic us if we
3091                          * give them an 'illegal' value we'll avoid that
3092                          * here.
3093                          */
3094                         if (block_size == 0 && maxsector == 0) {
3095                                 block_size = 512;
3096                                 maxsector = -1;
3097                         }
3098                         if (block_size >= MAXPHYS || block_size == 0) {
3099                                 xpt_print(periph->path,
3100                                     "unsupportable block size %ju\n",
3101                                     (uintmax_t) block_size);
3102                                 announce_buf[0] = '\0';
3103                                 cam_periph_invalidate(periph);
3104                         } else {
3105                                 /*
3106                                  * We pass rcaplong into dasetgeom(),
3107                                  * because it will only use it if it is
3108                                  * non-NULL.
3109                                  */
3110                                 dasetgeom(periph, block_size, maxsector,
3111                                           rcaplong, sizeof(*rcaplong));
3112                                 lbp = (lalba & SRC16_LBPME_A);
3113                                 dp = &softc->params;
3114                                 snprintf(announce_buf, sizeof(announce_buf),
3115                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
3116                                         "%dC)", (uintmax_t)
3117                                         (((uintmax_t)dp->secsize *
3118                                         dp->sectors) / (1024*1024)),
3119                                         (uintmax_t)dp->sectors,
3120                                         dp->secsize, dp->heads,
3121                                         dp->secs_per_track, dp->cylinders);
3122                         }
3123                 } else {
3124                         int     error;
3125
3126                         announce_buf[0] = '\0';
3127
3128                         /*
3129                          * Retry any UNIT ATTENTION type errors.  They
3130                          * are expected at boot.
3131                          */
3132                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3133                                         SF_RETRY_UA|SF_NO_PRINT);
3134                         if (error == ERESTART) {
3135                                 /*
3136                                  * A retry was scheuled, so
3137                                  * just return.
3138                                  */
3139                                 return;
3140                         } else if (error != 0) {
3141                                 int asc, ascq;
3142                                 int sense_key, error_code;
3143                                 int have_sense;
3144                                 cam_status status;
3145                                 struct ccb_getdev cgd;
3146
3147                                 /* Don't wedge this device's queue */
3148                                 status = done_ccb->ccb_h.status;
3149                                 if ((status & CAM_DEV_QFRZN) != 0)
3150                                         cam_release_devq(done_ccb->ccb_h.path,
3151                                                          /*relsim_flags*/0,
3152                                                          /*reduction*/0,
3153                                                          /*timeout*/0,
3154                                                          /*getcount_only*/0);
3155
3156
3157                                 xpt_setup_ccb(&cgd.ccb_h,
3158                                               done_ccb->ccb_h.path,
3159                                               CAM_PRIORITY_NORMAL);
3160                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
3161                                 xpt_action((union ccb *)&cgd);
3162
3163                                 if (scsi_extract_sense_ccb(done_ccb,
3164                                     &error_code, &sense_key, &asc, &ascq))
3165                                         have_sense = TRUE;
3166                                 else
3167                                         have_sense = FALSE;
3168
3169                                 /*
3170                                  * If we tried READ CAPACITY(16) and failed,
3171                                  * fallback to READ CAPACITY(10).
3172                                  */
3173                                 if ((state == DA_CCB_PROBE_RC16) &&
3174                                     (softc->flags & DA_FLAG_CAN_RC16) &&
3175                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
3176                                         CAM_REQ_INVALID) ||
3177                                      ((have_sense) &&
3178                                       (error_code == SSD_CURRENT_ERROR) &&
3179                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
3180                                         softc->flags &= ~DA_FLAG_CAN_RC16;
3181                                         free(rdcap, M_SCSIDA);
3182                                         xpt_release_ccb(done_ccb);
3183                                         softc->state = DA_STATE_PROBE_RC;
3184                                         xpt_schedule(periph, priority);
3185                                         return;
3186                                 } else
3187                                 /*
3188                                  * Attach to anything that claims to be a
3189                                  * direct access or optical disk device,
3190                                  * as long as it doesn't return a "Logical
3191                                  * unit not supported" (0x25) error.
3192                                  */
3193                                 if ((have_sense) && (asc != 0x25)
3194                                  && (error_code == SSD_CURRENT_ERROR)) {
3195                                         const char *sense_key_desc;
3196                                         const char *asc_desc;
3197
3198                                         dasetgeom(periph, 512, -1, NULL, 0);
3199                                         scsi_sense_desc(sense_key, asc, ascq,
3200                                                         &cgd.inq_data,
3201                                                         &sense_key_desc,
3202                                                         &asc_desc);
3203                                         snprintf(announce_buf,
3204                                             sizeof(announce_buf),
3205                                                 "Attempt to query device "
3206                                                 "size failed: %s, %s",
3207                                                 sense_key_desc,
3208                                                 asc_desc);
3209                                 } else {
3210                                         if (have_sense)
3211                                                 scsi_sense_print(
3212                                                         &done_ccb->csio);
3213                                         else {
3214                                                 xpt_print(periph->path,
3215                                                     "got CAM status %#x\n",
3216                                                     done_ccb->ccb_h.status);
3217                                         }
3218
3219                                         xpt_print(periph->path, "fatal error, "
3220                                             "failed to attach to device\n");
3221
3222                                         /*
3223                                          * Free up resources.
3224                                          */
3225                                         cam_periph_invalidate(periph);
3226                                 }
3227                         }
3228                 }
3229                 free(csio->data_ptr, M_SCSIDA);
3230                 if (announce_buf[0] != '\0' &&
3231                     ((softc->flags & DA_FLAG_ANNOUNCED) == 0)) {
3232                         /*
3233                          * Create our sysctl variables, now that we know
3234                          * we have successfully attached.
3235                          */
3236                         /* increase the refcount */
3237                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3238                                 taskqueue_enqueue(taskqueue_thread,
3239                                                   &softc->sysctl_task);
3240                                 xpt_announce_periph(periph, announce_buf);
3241                                 xpt_announce_quirks(periph, softc->quirks,
3242                                     DA_Q_BIT_STRING);
3243                         } else {
3244                                 xpt_print(periph->path, "fatal error, "
3245                                     "could not acquire reference count\n");
3246                         }
3247                 }
3248
3249                 /* We already probed the device. */
3250                 if (softc->flags & DA_FLAG_PROBED) {
3251                         daprobedone(periph, done_ccb);
3252                         return;
3253                 }
3254
3255                 /* Ensure re-probe doesn't see old delete. */
3256                 softc->delete_available = 0;
3257                 if (lbp && (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3258                         /*
3259                          * Based on older SBC-3 spec revisions
3260                          * any of the UNMAP methods "may" be
3261                          * available via LBP given this flag so
3262                          * we flag all of them as availble and
3263                          * then remove those which further
3264                          * probes confirm aren't available
3265                          * later.
3266                          *
3267                          * We could also check readcap(16) p_type
3268                          * flag to exclude one or more invalid
3269                          * write same (X) types here
3270                          */
3271                         dadeleteflag(softc, DA_DELETE_WS16, 1);
3272                         dadeleteflag(softc, DA_DELETE_WS10, 1);
3273                         dadeleteflag(softc, DA_DELETE_ZERO, 1);
3274                         dadeleteflag(softc, DA_DELETE_UNMAP, 1);
3275
3276                         xpt_release_ccb(done_ccb);
3277                         softc->state = DA_STATE_PROBE_LBP;
3278                         xpt_schedule(periph, priority);
3279                         return;
3280                 }
3281
3282                 xpt_release_ccb(done_ccb);
3283                 softc->state = DA_STATE_PROBE_BDC;
3284                 xpt_schedule(periph, priority);
3285                 return;
3286         }
3287         case DA_CCB_PROBE_LBP:
3288         {
3289                 struct scsi_vpd_logical_block_prov *lbp;
3290
3291                 lbp = (struct scsi_vpd_logical_block_prov *)csio->data_ptr;
3292
3293                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3294                         /*
3295                          * T10/1799-D Revision 31 states at least one of these
3296                          * must be supported but we don't currently enforce this.
3297                          */
3298                         dadeleteflag(softc, DA_DELETE_WS16,
3299                                      (lbp->flags & SVPD_LBP_WS16));
3300                         dadeleteflag(softc, DA_DELETE_WS10,
3301                                      (lbp->flags & SVPD_LBP_WS10));
3302                         dadeleteflag(softc, DA_DELETE_ZERO,
3303                                      (lbp->flags & SVPD_LBP_WS10));
3304                         dadeleteflag(softc, DA_DELETE_UNMAP,
3305                                      (lbp->flags & SVPD_LBP_UNMAP));
3306                 } else {
3307                         int error;
3308                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3309                                         SF_RETRY_UA|SF_NO_PRINT);
3310                         if (error == ERESTART)
3311                                 return;
3312                         else if (error != 0) {
3313                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3314                                         /* Don't wedge this device's queue */
3315                                         cam_release_devq(done_ccb->ccb_h.path,
3316                                                          /*relsim_flags*/0,
3317                                                          /*reduction*/0,
3318                                                          /*timeout*/0,
3319                                                          /*getcount_only*/0);
3320                                 }
3321
3322                                 /*
3323                                  * Failure indicates we don't support any SBC-3
3324                                  * delete methods with UNMAP
3325                                  */
3326                         }
3327                 }
3328
3329                 free(lbp, M_SCSIDA);
3330                 xpt_release_ccb(done_ccb);
3331                 softc->state = DA_STATE_PROBE_BLK_LIMITS;
3332                 xpt_schedule(periph, priority);
3333                 return;
3334         }
3335         case DA_CCB_PROBE_BLK_LIMITS:
3336         {
3337                 struct scsi_vpd_block_limits *block_limits;
3338
3339                 block_limits = (struct scsi_vpd_block_limits *)csio->data_ptr;
3340
3341                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3342                         uint32_t max_txfer_len = scsi_4btoul(
3343                                 block_limits->max_txfer_len);
3344                         uint32_t max_unmap_lba_cnt = scsi_4btoul(
3345                                 block_limits->max_unmap_lba_cnt);
3346                         uint32_t max_unmap_blk_cnt = scsi_4btoul(
3347                                 block_limits->max_unmap_blk_cnt);
3348                         uint64_t ws_max_blks = scsi_8btou64(
3349                                 block_limits->max_write_same_length);
3350
3351                         if (max_txfer_len != 0) {
3352                                 softc->disk->d_maxsize = MIN(softc->maxio,
3353                                     (off_t)max_txfer_len * softc->params.secsize);
3354                         }
3355
3356                         /*
3357                          * We should already support UNMAP but we check lba
3358                          * and block count to be sure
3359                          */
3360                         if (max_unmap_lba_cnt != 0x00L &&
3361                             max_unmap_blk_cnt != 0x00L) {
3362                                 softc->unmap_max_lba = max_unmap_lba_cnt;
3363                                 softc->unmap_max_ranges = min(max_unmap_blk_cnt,
3364                                         UNMAP_MAX_RANGES);
3365                         } else {
3366                                 /*
3367                                  * Unexpected UNMAP limits which means the
3368                                  * device doesn't actually support UNMAP
3369                                  */
3370                                 dadeleteflag(softc, DA_DELETE_UNMAP, 0);
3371                         }
3372
3373                         if (ws_max_blks != 0x00L)
3374                                 softc->ws_max_blks = ws_max_blks;
3375                 } else {
3376                         int error;
3377                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3378                                         SF_RETRY_UA|SF_NO_PRINT);
3379                         if (error == ERESTART)
3380                                 return;
3381                         else if (error != 0) {
3382                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3383                                         /* Don't wedge this device's queue */
3384                                         cam_release_devq(done_ccb->ccb_h.path,
3385                                                          /*relsim_flags*/0,
3386                                                          /*reduction*/0,
3387                                                          /*timeout*/0,
3388                                                          /*getcount_only*/0);
3389                                 }
3390
3391                                 /*
3392                                  * Failure here doesn't mean UNMAP is not
3393                                  * supported as this is an optional page.
3394                                  */
3395                                 softc->unmap_max_lba = 1;
3396                                 softc->unmap_max_ranges = 1;
3397                         }
3398                 }
3399
3400                 free(block_limits, M_SCSIDA);
3401                 xpt_release_ccb(done_ccb);
3402                 softc->state = DA_STATE_PROBE_BDC;
3403                 xpt_schedule(periph, priority);
3404                 return;
3405         }
3406         case DA_CCB_PROBE_BDC:
3407         {
3408                 struct scsi_vpd_block_characteristics *bdc;
3409
3410                 bdc = (struct scsi_vpd_block_characteristics *)csio->data_ptr;
3411
3412                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3413                         /*
3414                          * Disable queue sorting for non-rotational media
3415                          * by default.
3416                          */
3417                         u_int16_t old_rate = softc->disk->d_rotation_rate;
3418
3419                         softc->disk->d_rotation_rate =
3420                                 scsi_2btoul(bdc->medium_rotation_rate);
3421                         if (softc->disk->d_rotation_rate ==
3422                             SVPD_BDC_RATE_NON_ROTATING) {
3423                                 softc->sort_io_queue = 0;
3424                         }
3425                         if (softc->disk->d_rotation_rate != old_rate) {
3426                                 disk_attr_changed(softc->disk,
3427                                     "GEOM::rotation_rate", M_NOWAIT);
3428                         }
3429                 } else {
3430                         int error;
3431                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3432                                         SF_RETRY_UA|SF_NO_PRINT);
3433                         if (error == ERESTART)
3434                                 return;
3435                         else if (error != 0) {
3436                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3437                                         /* Don't wedge this device's queue */
3438                                         cam_release_devq(done_ccb->ccb_h.path,
3439                                                          /*relsim_flags*/0,
3440                                                          /*reduction*/0,
3441                                                          /*timeout*/0,
3442                                                          /*getcount_only*/0);
3443                                 }
3444                         }
3445                 }
3446
3447                 free(bdc, M_SCSIDA);
3448                 xpt_release_ccb(done_ccb);
3449                 softc->state = DA_STATE_PROBE_ATA;
3450                 xpt_schedule(periph, priority);
3451                 return;
3452         }
3453         case DA_CCB_PROBE_ATA:
3454         {
3455                 int i;
3456                 struct ata_params *ata_params;
3457                 int16_t *ptr;
3458
3459                 ata_params = (struct ata_params *)csio->data_ptr;
3460                 ptr = (uint16_t *)ata_params;
3461
3462                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
3463                         uint16_t old_rate;
3464
3465                         for (i = 0; i < sizeof(*ata_params) / 2; i++)
3466                                 ptr[i] = le16toh(ptr[i]);
3467                         if (ata_params->support_dsm & ATA_SUPPORT_DSM_TRIM &&
3468                             (softc->quirks & DA_Q_NO_UNMAP) == 0) {
3469                                 dadeleteflag(softc, DA_DELETE_ATA_TRIM, 1);
3470                                 if (ata_params->max_dsm_blocks != 0)
3471                                         softc->trim_max_ranges = min(
3472                                           softc->trim_max_ranges,
3473                                           ata_params->max_dsm_blocks *
3474                                           ATA_DSM_BLK_RANGES);
3475                         }
3476                         /*
3477                          * Disable queue sorting for non-rotational media
3478                          * by default.
3479                          */
3480                         old_rate = softc->disk->d_rotation_rate;
3481                         softc->disk->d_rotation_rate =
3482                             ata_params->media_rotation_rate;
3483                         if (softc->disk->d_rotation_rate ==
3484                             ATA_RATE_NON_ROTATING) {
3485                                 softc->sort_io_queue = 0;
3486                         }
3487
3488                         if (softc->disk->d_rotation_rate != old_rate) {
3489                                 disk_attr_changed(softc->disk,
3490                                     "GEOM::rotation_rate", M_NOWAIT);
3491                         }
3492                 } else {
3493                         int error;
3494                         error = daerror(done_ccb, CAM_RETRY_SELTO,
3495                                         SF_RETRY_UA|SF_NO_PRINT);
3496                         if (error == ERESTART)
3497                                 return;
3498                         else if (error != 0) {
3499                                 if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) {
3500                                         /* Don't wedge this device's queue */
3501                                         cam_release_devq(done_ccb->ccb_h.path,
3502                                                          /*relsim_flags*/0,
3503                                                          /*reduction*/0,
3504                                                          /*timeout*/0,
3505                                                          /*getcount_only*/0);
3506                                 }
3507                         }
3508                 }
3509
3510                 free(ata_params, M_SCSIDA);
3511                 daprobedone(periph, done_ccb);
3512                 return;
3513         }
3514         case DA_CCB_DUMP:
3515                 /* No-op.  We're polling */
3516                 return;
3517         case DA_CCB_TUR:
3518         {
3519                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3520
3521                         if (daerror(done_ccb, CAM_RETRY_SELTO,
3522                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
3523                             ERESTART)
3524                                 return;
3525                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
3526                                 cam_release_devq(done_ccb->ccb_h.path,
3527                                                  /*relsim_flags*/0,
3528                                                  /*reduction*/0,
3529                                                  /*timeout*/0,
3530                                                  /*getcount_only*/0);
3531                 }
3532                 xpt_release_ccb(done_ccb);
3533                 cam_periph_release_locked(periph);
3534                 return;
3535         }
3536         default:
3537                 break;
3538         }
3539         xpt_release_ccb(done_ccb);
3540 }
3541
3542 static void
3543 dareprobe(struct cam_periph *periph)
3544 {
3545         struct da_softc   *softc;
3546         cam_status status;
3547
3548         softc = (struct da_softc *)periph->softc;
3549
3550         /* Probe in progress; don't interfere. */
3551         if (softc->state != DA_STATE_NORMAL)
3552                 return;
3553
3554         status = cam_periph_acquire(periph);
3555         KASSERT(status == CAM_REQ_CMP,
3556             ("dareprobe: cam_periph_acquire failed"));
3557
3558         if (softc->flags & DA_FLAG_CAN_RC16)
3559                 softc->state = DA_STATE_PROBE_RC16;
3560         else
3561                 softc->state = DA_STATE_PROBE_RC;
3562
3563         xpt_schedule(periph, CAM_PRIORITY_DEV);
3564 }
3565
3566 static int
3567 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3568 {
3569         struct da_softc   *softc;
3570         struct cam_periph *periph;
3571         int error, error_code, sense_key, asc, ascq;
3572
3573         periph = xpt_path_periph(ccb->ccb_h.path);
3574         softc = (struct da_softc *)periph->softc;
3575
3576         /*
3577          * Automatically detect devices that do not support
3578          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
3579          */
3580         error = 0;
3581         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3582                 error = cmd6workaround(ccb);
3583         } else if (scsi_extract_sense_ccb(ccb,
3584             &error_code, &sense_key, &asc, &ascq)) {
3585                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3586                         error = cmd6workaround(ccb);
3587                 /*
3588                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
3589                  * query the capacity and notify upper layers.
3590                  */
3591                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3592                     asc == 0x2A && ascq == 0x09) {
3593                         xpt_print(periph->path, "Capacity data has changed\n");
3594                         softc->flags &= ~DA_FLAG_PROBED;
3595                         dareprobe(periph);
3596                         sense_flags |= SF_NO_PRINT;
3597                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3598                     asc == 0x28 && ascq == 0x00) {
3599                         softc->flags &= ~DA_FLAG_PROBED;
3600                         disk_media_changed(softc->disk, M_NOWAIT);
3601                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
3602                     asc == 0x3F && ascq == 0x03) {
3603                         xpt_print(periph->path, "INQUIRY data has changed\n");
3604                         softc->flags &= ~DA_FLAG_PROBED;
3605                         dareprobe(periph);
3606                         sense_flags |= SF_NO_PRINT;
3607                 } else if (sense_key == SSD_KEY_NOT_READY &&
3608                     asc == 0x3a && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
3609                         softc->flags |= DA_FLAG_PACK_INVALID;
3610                         disk_media_gone(softc->disk, M_NOWAIT);
3611                 }
3612         }
3613         if (error == ERESTART)
3614                 return (ERESTART);
3615
3616         /*
3617          * XXX
3618          * Until we have a better way of doing pack validation,
3619          * don't treat UAs as errors.
3620          */
3621         sense_flags |= SF_RETRY_UA;
3622         return(cam_periph_error(ccb, cam_flags, sense_flags,
3623                                 &softc->saved_ccb));
3624 }
3625
3626 static void
3627 damediapoll(void *arg)
3628 {
3629         struct cam_periph *periph = arg;
3630         struct da_softc *softc = periph->softc;
3631
3632         if (!softc->tur && LIST_EMPTY(&softc->pending_ccbs)) {
3633                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
3634                         softc->tur = 1;
3635                         daschedule(periph);
3636                 }
3637         }
3638         /* Queue us up again */
3639         if (da_poll_period != 0)
3640                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
3641 }
3642
3643 static void
3644 daprevent(struct cam_periph *periph, int action)
3645 {
3646         struct  da_softc *softc;
3647         union   ccb *ccb;
3648         int     error;
3649
3650         softc = (struct da_softc *)periph->softc;
3651
3652         if (((action == PR_ALLOW)
3653           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
3654          || ((action == PR_PREVENT)
3655           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
3656                 return;
3657         }
3658
3659         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3660
3661         scsi_prevent(&ccb->csio,
3662                      /*retries*/1,
3663                      /*cbcfp*/dadone,
3664                      MSG_SIMPLE_Q_TAG,
3665                      action,
3666                      SSD_FULL_SIZE,
3667                      5000);
3668
3669         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
3670             SF_RETRY_UA | SF_NO_PRINT, softc->disk->d_devstat);
3671
3672         if (error == 0) {
3673                 if (action == PR_ALLOW)
3674                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
3675                 else
3676                         softc->flags |= DA_FLAG_PACK_LOCKED;
3677         }
3678
3679         xpt_release_ccb(ccb);
3680 }
3681
3682 static void
3683 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
3684           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
3685 {
3686         struct ccb_calc_geometry ccg;
3687         struct da_softc *softc;
3688         struct disk_params *dp;
3689         u_int lbppbe, lalba;
3690         int error;
3691
3692         softc = (struct da_softc *)periph->softc;
3693
3694         dp = &softc->params;
3695         dp->secsize = block_len;
3696         dp->sectors = maxsector + 1;
3697         if (rcaplong != NULL) {
3698                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
3699                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
3700                 lalba &= SRC16_LALBA_A;
3701         } else {
3702                 lbppbe = 0;
3703                 lalba = 0;
3704         }
3705
3706         if (lbppbe > 0) {
3707                 dp->stripesize = block_len << lbppbe;
3708                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
3709                     dp->stripesize;
3710         } else if (softc->quirks & DA_Q_4K) {
3711                 dp->stripesize = 4096;
3712                 dp->stripeoffset = 0;
3713         } else {
3714                 dp->stripesize = 0;
3715                 dp->stripeoffset = 0;
3716         }
3717         /*
3718          * Have the controller provide us with a geometry
3719          * for this disk.  The only time the geometry
3720          * matters is when we boot and the controller
3721          * is the only one knowledgeable enough to come
3722          * up with something that will make this a bootable
3723          * device.
3724          */
3725         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3726         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
3727         ccg.block_size = dp->secsize;
3728         ccg.volume_size = dp->sectors;
3729         ccg.heads = 0;
3730         ccg.secs_per_track = 0;
3731         ccg.cylinders = 0;
3732         xpt_action((union ccb*)&ccg);
3733         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
3734                 /*
3735                  * We don't know what went wrong here- but just pick
3736                  * a geometry so we don't have nasty things like divide
3737                  * by zero.
3738                  */
3739                 dp->heads = 255;
3740                 dp->secs_per_track = 255;
3741                 dp->cylinders = dp->sectors / (255 * 255);
3742                 if (dp->cylinders == 0) {
3743                         dp->cylinders = 1;
3744                 }
3745         } else {
3746                 dp->heads = ccg.heads;
3747                 dp->secs_per_track = ccg.secs_per_track;
3748                 dp->cylinders = ccg.cylinders;
3749         }
3750
3751         /*
3752          * If the user supplied a read capacity buffer, and if it is
3753          * different than the previous buffer, update the data in the EDT.
3754          * If it's the same, we don't bother.  This avoids sending an
3755          * update every time someone opens this device.
3756          */
3757         if ((rcaplong != NULL)
3758          && (bcmp(rcaplong, &softc->rcaplong,
3759                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
3760                 struct ccb_dev_advinfo cdai;
3761
3762                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
3763                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
3764                 cdai.buftype = CDAI_TYPE_RCAPLONG;
3765                 cdai.flags |= CDAI_FLAG_STORE;
3766                 cdai.bufsiz = rcap_len;
3767                 cdai.buf = (uint8_t *)rcaplong;
3768                 xpt_action((union ccb *)&cdai);
3769                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
3770                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
3771                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
3772                         xpt_print(periph->path, "%s: failed to set read "
3773                                   "capacity advinfo\n", __func__);
3774                         /* Use cam_error_print() to decode the status */
3775                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
3776                                         CAM_EPF_ALL);
3777                 } else {
3778                         bcopy(rcaplong, &softc->rcaplong,
3779                               min(sizeof(softc->rcaplong), rcap_len));
3780                 }
3781         }
3782
3783         softc->disk->d_sectorsize = softc->params.secsize;
3784         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
3785         softc->disk->d_stripesize = softc->params.stripesize;
3786         softc->disk->d_stripeoffset = softc->params.stripeoffset;
3787         /* XXX: these are not actually "firmware" values, so they may be wrong */
3788         softc->disk->d_fwsectors = softc->params.secs_per_track;
3789         softc->disk->d_fwheads = softc->params.heads;
3790         softc->disk->d_devstat->block_size = softc->params.secsize;
3791         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
3792
3793         error = disk_resize(softc->disk, M_NOWAIT);
3794         if (error != 0)
3795                 xpt_print(periph->path, "disk_resize(9) failed, error = %d\n", error);
3796 }
3797
3798 static void
3799 dasendorderedtag(void *arg)
3800 {
3801         struct da_softc *softc = arg;
3802
3803         if (da_send_ordered) {
3804                 if (!LIST_EMPTY(&softc->pending_ccbs)) {
3805                         if ((softc->flags & DA_FLAG_WAS_OTAG) == 0)
3806                                 softc->flags |= DA_FLAG_NEED_OTAG;
3807                         softc->flags &= ~DA_FLAG_WAS_OTAG;
3808                 }
3809         }
3810         /* Queue us up again */
3811         callout_reset(&softc->sendordered_c,
3812             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
3813             dasendorderedtag, softc);
3814 }
3815
3816 /*
3817  * Step through all DA peripheral drivers, and if the device is still open,
3818  * sync the disk cache to physical media.
3819  */
3820 static void
3821 dashutdown(void * arg, int howto)
3822 {
3823         struct cam_periph *periph;
3824         struct da_softc *softc;
3825         union ccb *ccb;
3826         int error;
3827
3828         CAM_PERIPH_FOREACH(periph, &dadriver) {
3829                 softc = (struct da_softc *)periph->softc;
3830                 if (SCHEDULER_STOPPED()) {
3831                         /* If we paniced with the lock held, do not recurse. */
3832                         if (!cam_periph_owned(periph) &&
3833                             (softc->flags & DA_FLAG_OPEN)) {
3834                                 dadump(softc->disk, NULL, 0, 0, 0);
3835                         }
3836                         continue;
3837                 }
3838                 cam_periph_lock(periph);
3839
3840                 /*
3841                  * We only sync the cache if the drive is still open, and
3842                  * if the drive is capable of it..
3843                  */
3844                 if (((softc->flags & DA_FLAG_OPEN) == 0)
3845                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
3846                         cam_periph_unlock(periph);
3847                         continue;
3848                 }
3849
3850                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
3851                 scsi_synchronize_cache(&ccb->csio,
3852                                        /*retries*/0,
3853                                        /*cbfcnp*/dadone,
3854                                        MSG_SIMPLE_Q_TAG,
3855                                        /*begin_lba*/0, /* whole disk */
3856                                        /*lb_count*/0,
3857                                        SSD_FULL_SIZE,
3858                                        60 * 60 * 1000);
3859
3860                 error = cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
3861                     /*sense_flags*/ SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR,
3862                     softc->disk->d_devstat);
3863                 if (error != 0)
3864                         xpt_print(periph->path, "Synchronize cache failed\n");
3865                 xpt_release_ccb(ccb);
3866                 cam_periph_unlock(periph);
3867         }
3868 }
3869
3870 #else /* !_KERNEL */
3871
3872 /*
3873  * XXX This is only left out of the kernel build to silence warnings.  If,
3874  * for some reason this function is used in the kernel, the ifdefs should
3875  * be moved so it is included both in the kernel and userland.
3876  */
3877 void
3878 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
3879                  void (*cbfcnp)(struct cam_periph *, union ccb *),
3880                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
3881                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3882                  u_int32_t timeout)
3883 {
3884         struct scsi_format_unit *scsi_cmd;
3885
3886         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
3887         scsi_cmd->opcode = FORMAT_UNIT;
3888         scsi_cmd->byte2 = byte2;
3889         scsi_ulto2b(ileave, scsi_cmd->interleave);
3890
3891         cam_fill_csio(csio,
3892                       retries,
3893                       cbfcnp,
3894                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3895                       tag_action,
3896                       data_ptr,
3897                       dxfer_len,
3898                       sense_len,
3899                       sizeof(*scsi_cmd),
3900                       timeout);
3901 }
3902
3903 void
3904 scsi_sanitize(struct ccb_scsiio *csio, u_int32_t retries,
3905               void (*cbfcnp)(struct cam_periph *, union ccb *),
3906               u_int8_t tag_action, u_int8_t byte2, u_int16_t control,
3907               u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
3908               u_int32_t timeout)
3909 {
3910         struct scsi_sanitize *scsi_cmd;
3911
3912         scsi_cmd = (struct scsi_sanitize *)&csio->cdb_io.cdb_bytes;
3913         scsi_cmd->opcode = SANITIZE;
3914         scsi_cmd->byte2 = byte2;
3915         scsi_cmd->control = control;
3916         scsi_ulto2b(dxfer_len, scsi_cmd->length);
3917
3918         cam_fill_csio(csio,
3919                       retries,
3920                       cbfcnp,
3921                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
3922                       tag_action,
3923                       data_ptr,
3924                       dxfer_len,
3925                       sense_len,
3926                       sizeof(*scsi_cmd),
3927                       timeout);
3928 }
3929
3930 #endif /* _KERNEL */