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 <geom/geom.h>
  48 #include <geom/geom_disk.h>
  49 #endif /* _KERNEL */
  50
  51 #ifndef _KERNEL
  52 #include <stdio.h>
  53 #include <string.h>
  54 #endif /* _KERNEL */
  55
  56 #include <cam/cam.h>
  57 #include <cam/cam_ccb.h>
  58 #include <cam/cam_periph.h>
  59 #include <cam/cam_xpt_periph.h>
  60 #include <cam/cam_sim.h>
  61
  62 #include <cam/scsi/scsi_message.h>
  63
  64 #ifndef _KERNEL
  65 #include <cam/scsi/scsi_da.h>
  66 #endif /* !_KERNEL */
  67
  68 #ifdef _KERNEL
  69 typedef enum {
  70         DA_STATE_PROBE,
  71         DA_STATE_PROBE2,
  72         DA_STATE_NORMAL
  73 } da_state;
  74
  75 typedef enum {
  76         DA_FLAG_PACK_INVALID    = 0x001,
  77         DA_FLAG_NEW_PACK        = 0x002,
  78         DA_FLAG_PACK_LOCKED     = 0x004,
  79         DA_FLAG_PACK_REMOVABLE  = 0x008,
  80         DA_FLAG_SAW_MEDIA       = 0x010,
  81         DA_FLAG_NEED_OTAG       = 0x020,
  82         DA_FLAG_WENT_IDLE       = 0x040,
  83         DA_FLAG_RETRY_UA        = 0x080,
  84         DA_FLAG_OPEN            = 0x100,
  85         DA_FLAG_SCTX_INIT       = 0x200,
  86         DA_FLAG_CAN_RC16        = 0x400,
  87         DA_FLAG_PROBED          = 0x800
  88 } da_flags;
  89
  90 typedef enum {
  91         DA_Q_NONE               = 0x00,
  92         DA_Q_NO_SYNC_CACHE      = 0x01,
  93         DA_Q_NO_6_BYTE          = 0x02,
  94         DA_Q_NO_PREVENT         = 0x04,
  95         DA_Q_4K                 = 0x08
  96 } da_quirks;
  97
  98 typedef enum {
  99         DA_CCB_PROBE            = 0x01,
 100         DA_CCB_PROBE2           = 0x02,
 101         DA_CCB_BUFFER_IO        = 0x03,
 102         DA_CCB_WAITING          = 0x04,
 103         DA_CCB_DUMP             = 0x05,
 104         DA_CCB_DELETE           = 0x06,
 105         DA_CCB_TUR              = 0x07,
 106         DA_CCB_TYPE_MASK        = 0x0F,
 107         DA_CCB_RETRY_UA         = 0x10
 108 } da_ccb_state;
 109
 110 typedef enum {
 111         DA_DELETE_NONE,
 112         DA_DELETE_DISABLE,
 113         DA_DELETE_ZERO,
 114         DA_DELETE_WS10,
 115         DA_DELETE_WS16,
 116         DA_DELETE_UNMAP,
 117         DA_DELETE_MAX = DA_DELETE_UNMAP
 118 } da_delete_methods;
 119
 120 static const char *da_delete_method_names[] =
 121     { "NONE", "DISABLE", "ZERO", "WS10", "WS16", "UNMAP" };
 122
 123 /* Offsets into our private area for storing information */
 124 #define ccb_state       ppriv_field0
 125 #define ccb_bp          ppriv_ptr1
 126
 127 struct disk_params {
 128         u_int8_t  heads;
 129         u_int32_t cylinders;
 130         u_int8_t  secs_per_track;
 131         u_int32_t secsize;      /* Number of bytes/sector */
 132         u_int64_t sectors;      /* total number sectors */
 133         u_int     stripesize;
 134         u_int     stripeoffset;
 135 };
 136
 137 #define UNMAP_MAX_RANGES        512
 138
 139 struct da_softc {
 140         struct   bio_queue_head bio_queue;
 141         struct   bio_queue_head delete_queue;
 142         struct   bio_queue_head delete_run_queue;
 143         SLIST_ENTRY(da_softc) links;
 144         LIST_HEAD(, ccb_hdr) pending_ccbs;
 145         da_state state;
 146         da_flags flags;
 147         da_quirks quirks;
 148         int      minimum_cmd_size;
 149         int      error_inject;
 150         int      ordered_tag_count;
 151         int      outstanding_cmds;
 152         int      unmap_max_ranges;
 153         int      unmap_max_lba;
 154         int      delete_running;
 155         int      tur;
 156         da_delete_methods        delete_method;
 157         struct   disk_params params;
 158         struct   disk *disk;
 159         union    ccb saved_ccb;
 160         struct task             sysctl_task;
 161         struct sysctl_ctx_list  sysctl_ctx;
 162         struct sysctl_oid       *sysctl_tree;
 163         struct callout          sendordered_c;
 164         uint64_t wwpn;
 165         uint8_t  unmap_buf[UNMAP_MAX_RANGES * 16 + 8];
 166         struct scsi_read_capacity_data_long rcaplong;
 167         struct callout          mediapoll_c;
 168 };
 169
 170 struct da_quirk_entry {
 171         struct scsi_inquiry_pattern inq_pat;
 172         da_quirks quirks;
 173 };
 174
 175 static const char quantum[] = "QUANTUM";
 176 static const char microp[] = "MICROP";
 177
 178 static struct da_quirk_entry da_quirk_table[] =
 179 {
 180         /* SPI, FC devices */
 181         {
 182                 /*
 183                  * Fujitsu M2513A MO drives.
 184                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 185                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 186                  * Reported by: W.Scholten <whs@xs4all.nl>
 187                  */
 188                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 189                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 190         },
 191         {
 192                 /* See above. */
 193                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 194                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 195         },
 196         {
 197                 /*
 198                  * This particular Fujitsu drive doesn't like the
 199                  * synchronize cache command.
 200                  * Reported by: Tom Jackson <toj@gorilla.net>
 201                  */
 202                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 203                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 204         },
 205         {
 206                 /*
 207                  * This drive doesn't like the synchronize cache command
 208                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 209                  * in NetBSD PR kern/6027, August 24, 1998.
 210                  */
 211                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 212                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 213         },
 214         {
 215                 /*
 216                  * This drive doesn't like the synchronize cache command
 217                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 218                  * (PR 8882).
 219                  */
 220                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 221                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 222         },
 223         {
 224                 /*
 225                  * Doesn't like the synchronize cache command.
 226                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 227                  */
 228                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 229                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 230         },
 231         {
 232                 /*
 233                  * Doesn't like the synchronize cache command.
 234                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 235                  */
 236                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 237                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 238         },
 239         {
 240                 /*
 241                  * Doesn't like the synchronize cache command.
 242                  */
 243                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 244                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 245         },
 246         {
 247                 /*
 248                  * Doesn't like the synchronize cache command.
 249                  * Reported by: walter@pelissero.de
 250                  */
 251                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 252                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 253         },
 254         {
 255                 /*
 256                  * Doesn't work correctly with 6 byte reads/writes.
 257                  * Returns illegal request, and points to byte 9 of the
 258                  * 6-byte CDB.
 259                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 260                  */
 261                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 262                 /*quirks*/ DA_Q_NO_6_BYTE
 263         },
 264         {
 265                 /* See above. */
 266                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 267                 /*quirks*/ DA_Q_NO_6_BYTE
 268         },
 269         {
 270                 /*
 271                  * Doesn't like the synchronize cache command.
 272                  * Reported by: walter@pelissero.de
 273                  */
 274                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 275                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 276         },
 277         {
 278                 /*
 279                  * The CISS RAID controllers do not support SYNC_CACHE
 280                  */
 281                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 282                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 283         },
 284         /* USB mass storage devices supported by umass(4) */
 285         {
 286                 /*
 287                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 288                  * PR: kern/51675
 289                  */
 290                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 291                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 292         },
 293         {
 294                 /*
 295                  * Power Quotient Int. (PQI) USB flash key
 296                  * PR: kern/53067
 297                  */
 298                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 299                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 300         },
 301         {
 302                 /*
 303                  * Creative Nomad MUVO mp3 player (USB)
 304                  * PR: kern/53094
 305                  */
 306                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 307                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 308         },
 309         {
 310                 /*
 311                  * Jungsoft NEXDISK USB flash key
 312                  * PR: kern/54737
 313                  */
 314                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 315                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 316         },
 317         {
 318                 /*
 319                  * FreeDik USB Mini Data Drive
 320                  * PR: kern/54786
 321                  */
 322                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 323                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 324         },
 325         {
 326                 /*
 327                  * Sigmatel USB Flash MP3 Player
 328                  * PR: kern/57046
 329                  */
 330                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 331                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 332         },
 333         {
 334                 /*
 335                  * Neuros USB Digital Audio Computer
 336                  * PR: kern/63645
 337                  */
 338                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 339                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 340         },
 341         {
 342                 /*
 343                  * SEAGRAND NP-900 MP3 Player
 344                  * PR: kern/64563
 345                  */
 346                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 347                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 348         },
 349         {
 350                 /*
 351                  * iRiver iFP MP3 player (with UMS Firmware)
 352                  * PR: kern/54881, i386/63941, kern/66124
 353                  */
 354                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 355                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 356         },
 357         {
 358                 /*
 359                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 360                  * PR: kern/70158
 361                  */
 362                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 363                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 364         },
 365         {
 366                 /*
 367                  * ZICPlay USB MP3 Player with FM
 368                  * PR: kern/75057
 369                  */
 370                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 371                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 372         },
 373         {
 374                 /*
 375                  * TEAC USB floppy mechanisms
 376                  */
 377                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 378                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 379         },
 380         {
 381                 /*
 382                  * Kingston DataTraveler II+ USB Pen-Drive.
 383                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 384                  */
 385                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 386                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 387         },
 388         {
 389                 /*
 390                  * USB DISK Pro PMAP
 391                  * Reported by: jhs
 392                  * PR: usb/96381
 393                  */
 394                 {T_DIRECT, SIP_MEDIA_REMOVABLE, " ", "USB DISK Pro", "PMAP"},
 395                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 396         },
 397         {
 398                 /*
 399                  * Motorola E398 Mobile Phone (TransFlash memory card).
 400                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 401                  * PR: usb/89889
 402                  */
 403                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 404                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 405         },
 406         {
 407                 /*
 408                  * Qware BeatZkey! Pro
 409                  * PR: usb/79164
 410                  */
 411                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 412                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 413         },
 414         {
 415                 /*
 416                  * Time DPA20B 1GB MP3 Player
 417                  * PR: usb/81846
 418                  */
 419                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 420                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 421         },
 422         {
 423                 /*
 424                  * Samsung USB key 128Mb
 425                  * PR: usb/90081
 426                  */
 427                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 428                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 429         },
 430         {
 431                 /*
 432                  * Kingston DataTraveler 2.0 USB Flash memory.
 433                  * PR: usb/89196
 434                  */
 435                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 436                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 437         },
 438         {
 439                 /*
 440                  * Creative MUVO Slim mp3 player (USB)
 441                  * PR: usb/86131
 442                  */
 443                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 444                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 445                 },
 446         {
 447                 /*
 448                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 449                  * PR: usb/80487
 450                  */
 451                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 452                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 453         },
 454         {
 455                 /*
 456                  * SanDisk Micro Cruzer 128MB
 457                  * PR: usb/75970
 458                  */
 459                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 460                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 461         },
 462         {
 463                 /*
 464                  * TOSHIBA TransMemory USB sticks
 465                  * PR: kern/94660
 466                  */
 467                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 468                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 469         },
 470         {
 471                 /*
 472                  * PNY USB Flash keys
 473                  * PR: usb/75578, usb/72344, usb/65436
 474                  */
 475                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 476                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 477         },
 478         {
 479                 /*
 480                  * Genesys 6-in-1 Card Reader
 481                  * PR: usb/94647
 482                  */
 483                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 484                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 485         },
 486         {
 487                 /*
 488                  * Rekam Digital CAMERA
 489                  * PR: usb/98713
 490                  */
 491                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 492                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 493         },
 494         {
 495                 /*
 496                  * iRiver H10 MP3 player
 497                  * PR: usb/102547
 498                  */
 499                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 500                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 501         },
 502         {
 503                 /*
 504                  * iRiver U10 MP3 player
 505                  * PR: usb/92306
 506                  */
 507                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 508                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 509         },
 510         {
 511                 /*
 512                  * X-Micro Flash Disk
 513                  * PR: usb/96901
 514                  */
 515                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 516                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 517         },
 518         {
 519                 /*
 520                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 521                  * PR: usb/96546
 522                  */
 523                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 524                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 525         },
 526         {
 527                 /*
 528                  * Denver MP3 player
 529                  * PR: usb/107101
 530                  */
 531                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 532                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 533         },
 534         {
 535                 /*
 536                  * Philips USB Key Audio KEY013
 537                  * PR: usb/68412
 538                  */
 539                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 540                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 541         },
 542         {
 543                 /*
 544                  * JNC MP3 Player
 545                  * PR: usb/94439
 546                  */
 547                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 548                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 549         },
 550         {
 551                 /*
 552                  * SAMSUNG MP0402H
 553                  * PR: usb/108427
 554                  */
 555                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 556                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 557         },
 558         {
 559                 /*
 560                  * I/O Magic USB flash - Giga Bank
 561                  * PR: usb/108810
 562                  */
 563                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 564                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 565         },
 566         {
 567                 /*
 568                  * JoyFly 128mb USB Flash Drive
 569                  * PR: 96133
 570                  */
 571                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 572                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 573         },
 574         {
 575                 /*
 576                  * ChipsBnk usb stick
 577                  * PR: 103702
 578                  */
 579                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 580                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 581         },
 582         {
 583                 /*
 584                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 585                  * PR: 129858
 586                  */
 587                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 588                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 589         },
 590         {
 591                 /*
 592                  * Samsung YP-U3 mp3-player
 593                  * PR: 125398
 594                  */
 595                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 596                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 597         },
 598         {
 599                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 600                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 601         },
 602         {
 603                 /*
 604                  * Sony Cyber-Shot DSC cameras
 605                  * PR: usb/137035
 606                  */
 607                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 608                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 609         },
 610         /* ATA/SATA devices over SAS/USB/... */
 611         {
 612                 /* Hitachi Advanced Format (4k) drives */
 613                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 614                 /*quirks*/DA_Q_4K
 615         },
 616         {
 617                 /* Samsung Advanced Format (4k) drives */
 618                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 619                 /*quirks*/DA_Q_4K
 620         },
 621         {
 622                 /* Samsung Advanced Format (4k) drives */
 623                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 624                 /*quirks*/DA_Q_4K
 625         },
 626         {
 627                 /* Samsung Advanced Format (4k) drives */
 628                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 629                 /*quirks*/DA_Q_4K
 630         },
 631         {
 632                 /* Samsung Advanced Format (4k) drives */
 633                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 634                 /*quirks*/DA_Q_4K
 635         },
 636         {
 637                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 638                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 639                 /*quirks*/DA_Q_4K
 640         },
 641         {
 642                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 643                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 644                 /*quirks*/DA_Q_4K
 645         },
 646         {
 647                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 648                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 649                 /*quirks*/DA_Q_4K
 650         },
 651         {
 652                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 653                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 654                 /*quirks*/DA_Q_4K
 655         },
 656         {
 657                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 658                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 659                 /*quirks*/DA_Q_4K
 660         },
 661         {
 662                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 663                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 664                 /*quirks*/DA_Q_4K
 665         },
 666         {
 667                 /* Seagate Momentus Advanced Format (4k) drives */
 668                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 669                 /*quirks*/DA_Q_4K
 670         },
 671         {
 672                 /* Seagate Momentus Advanced Format (4k) drives */
 673                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 674                 /*quirks*/DA_Q_4K
 675         },
 676         {
 677                 /* Seagate Momentus Advanced Format (4k) drives */
 678                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 679                 /*quirks*/DA_Q_4K
 680         },
 681         {
 682                 /* Seagate Momentus Advanced Format (4k) drives */
 683                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 684                 /*quirks*/DA_Q_4K
 685         },
 686         {
 687                 /* Seagate Momentus Advanced Format (4k) drives */
 688                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 689                 /*quirks*/DA_Q_4K
 690         },
 691         {
 692                 /* Seagate Momentus Advanced Format (4k) drives */
 693                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 694                 /*quirks*/DA_Q_4K
 695         },
 696         {
 697                 /* Seagate Momentus Advanced Format (4k) drives */
 698                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 699                 /*quirks*/DA_Q_4K
 700         },
 701         {
 702                 /* Seagate Momentus Advanced Format (4k) drives */
 703                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 704                 /*quirks*/DA_Q_4K
 705         },
 706         {
 707                 /* Seagate Momentus Advanced Format (4k) drives */
 708                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 709                 /*quirks*/DA_Q_4K
 710         },
 711         {
 712                 /* Seagate Momentus Advanced Format (4k) drives */
 713                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 714                 /*quirks*/DA_Q_4K
 715         },
 716         {
 717                 /* Seagate Momentus Advanced Format (4k) drives */
 718                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 719                 /*quirks*/DA_Q_4K
 720         },
 721         {
 722                 /* Seagate Momentus Advanced Format (4k) drives */
 723                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 724                 /*quirks*/DA_Q_4K
 725         },
 726         {
 727                 /* Seagate Momentus Advanced Format (4k) drives */
 728                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 729                 /*quirks*/DA_Q_4K
 730         },
 731         {
 732                 /* Seagate Momentus Advanced Format (4k) drives */
 733                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 734                 /*quirks*/DA_Q_4K
 735         },
 736         {
 737                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 738                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 739                 /*quirks*/DA_Q_4K
 740         },
 741         {
 742                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 743                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 744                 /*quirks*/DA_Q_4K
 745         },
 746         {
 747                 /* WDC Caviar Green Advanced Format (4k) drives */
 748                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 749                 /*quirks*/DA_Q_4K
 750         },
 751         {
 752                 /* WDC Caviar Green Advanced Format (4k) drives */
 753                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 754                 /*quirks*/DA_Q_4K
 755         },
 756         {
 757                 /* WDC Caviar Green Advanced Format (4k) drives */
 758                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 759                 /*quirks*/DA_Q_4K
 760         },
 761         {
 762                 /* WDC Caviar Green Advanced Format (4k) drives */
 763                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 764                 /*quirks*/DA_Q_4K
 765         },
 766         {
 767                 /* WDC Caviar Green Advanced Format (4k) drives */
 768                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 769                 /*quirks*/DA_Q_4K
 770         },
 771         {
 772                 /* WDC Caviar Green Advanced Format (4k) drives */
 773                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 774                 /*quirks*/DA_Q_4K
 775         },
 776         {
 777                 /* WDC Caviar Green Advanced Format (4k) drives */
 778                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 779                 /*quirks*/DA_Q_4K
 780         },
 781         {
 782                 /* WDC Caviar Green Advanced Format (4k) drives */
 783                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 784                 /*quirks*/DA_Q_4K
 785         },
 786         {
 787                 /* WDC Scorpio Black Advanced Format (4k) drives */
 788                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 789                 /*quirks*/DA_Q_4K
 790         },
 791         {
 792                 /* WDC Scorpio Black Advanced Format (4k) drives */
 793                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 794                 /*quirks*/DA_Q_4K
 795         },
 796         {
 797                 /* WDC Scorpio Black Advanced Format (4k) drives */
 798                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 799                 /*quirks*/DA_Q_4K
 800         },
 801         {
 802                 /* WDC Scorpio Black Advanced Format (4k) drives */
 803                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 804                 /*quirks*/DA_Q_4K
 805         },
 806         {
 807                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 808                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 809                 /*quirks*/DA_Q_4K
 810         },
 811         {
 812                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 813                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 814                 /*quirks*/DA_Q_4K
 815         },
 816         {
 817                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 818                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 819                 /*quirks*/DA_Q_4K
 820         },
 821         {
 822                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 823                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 824                 /*quirks*/DA_Q_4K
 825         },
 826         {
 827                 /*
 828                  * Olympus FE-210 camera
 829                  */
 830                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "OLYMPUS", "FE210*",
 831                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 832         },
 833         {
 834                 /*
 835                  * LG UP3S MP3 player
 836                  */
 837                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "LG", "UP3S",
 838                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 839         },
 840         {
 841                 /*
 842                  * Laser MP3-2GA13 MP3 player
 843                  */
 844                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "(HS) Flash Disk",
 845                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 846         },
 847         {
 848                 /*
 849                  * LaCie external 250GB Hard drive des by Porsche
 850                  * Submitted by: Ben Stuyts <ben@altesco.nl>
 851                  * PR: 121474
 852                  */
 853                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HM250JI", "*"},
 854                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 855         },
 856 };
 857
 858 static  disk_strategy_t dastrategy;
 859 static  dumper_t        dadump;
 860 static  periph_init_t   dainit;
 861 static  void            daasync(void *callback_arg, u_int32_t code,
 862                                 struct cam_path *path, void *arg);
 863 static  void            dasysctlinit(void *context, int pending);
 864 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 865 static  int             dadeletemethodsysctl(SYSCTL_HANDLER_ARGS);
 866 static  periph_ctor_t   daregister;
 867 static  periph_dtor_t   dacleanup;
 868 static  periph_start_t  dastart;
 869 static  periph_oninv_t  daoninvalidate;
 870 static  void            dadone(struct cam_periph *periph,
 871                                union ccb *done_ccb);
 872 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 873                                 u_int32_t sense_flags);
 874 static void             daprevent(struct cam_periph *periph, int action);
 875 static void             dareprobe(struct cam_periph *periph);
 876 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 877                                   uint64_t maxsector,
 878                                   struct scsi_read_capacity_data_long *rcaplong,
 879                                   size_t rcap_size);
 880 static timeout_t        dasendorderedtag;
 881 static void             dashutdown(void *arg, int howto);
 882 static timeout_t        damediapoll;
 883
 884 #ifndef DA_DEFAULT_POLL_PERIOD
 885 #define DA_DEFAULT_POLL_PERIOD  3
 886 #endif
 887
 888 #ifndef DA_DEFAULT_TIMEOUT
 889 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 890 #endif
 891
 892 #ifndef DA_DEFAULT_RETRY
 893 #define DA_DEFAULT_RETRY        4
 894 #endif
 895
 896 #ifndef DA_DEFAULT_SEND_ORDERED
 897 #define DA_DEFAULT_SEND_ORDERED 1
 898 #endif
 899
 900
 901 static int da_poll_period = DA_DEFAULT_POLL_PERIOD;
 902 static int da_retry_count = DA_DEFAULT_RETRY;
 903 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 904 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 905
 906 static SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 907             "CAM Direct Access Disk driver");
 908 SYSCTL_INT(_kern_cam_da, OID_AUTO, poll_period, CTLFLAG_RW,
 909            &da_poll_period, 0, "Media polling period in seconds");
 910 TUNABLE_INT("kern.cam.da.poll_period", &da_poll_period);
 911 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 912            &da_retry_count, 0, "Normal I/O retry count");
 913 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 914 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 915            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 916 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 917 SYSCTL_INT(_kern_cam_da, OID_AUTO, send_ordered, CTLFLAG_RW,
 918            &da_send_ordered, 0, "Send Ordered Tags");
 919 TUNABLE_INT("kern.cam.da.send_ordered", &da_send_ordered);
 920
 921 /*
 922  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 923  * to the default timeout, we check to see whether an ordered
 924  * tagged transaction is appropriate to prevent simple tag
 925  * starvation.  Since we'd like to ensure that there is at least
 926  * 1/2 of the timeout length left for a starved transaction to
 927  * complete after we've sent an ordered tag, we must poll at least
 928  * four times in every timeout period.  This takes care of the worst
 929  * case where a starved transaction starts during an interval that
 930  * meets the requirement "don't send an ordered tag" test so it takes
 931  * us two intervals to determine that a tag must be sent.
 932  */
 933 #ifndef DA_ORDEREDTAG_INTERVAL
 934 #define DA_ORDEREDTAG_INTERVAL 4
 935 #endif
 936
 937 static struct periph_driver dadriver =
 938 {
 939         dainit, "da",
 940         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 941 };
 942
 943 PERIPHDRIVER_DECLARE(da, dadriver);
 944
 945 static MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 946
 947 static int
 948 daopen(struct disk *dp)
 949 {
 950         struct cam_periph *periph;
 951         struct da_softc *softc;
 952         int unit;
 953         int error;
 954
 955         periph = (struct cam_periph *)dp->d_drv1;
 956         if (periph == NULL) {
 957                 return (ENXIO);
 958         }
 959
 960         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 961                 return (ENXIO);
 962         }
 963
 964         cam_periph_lock(periph);
 965         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 966                 cam_periph_unlock(periph);
 967                 cam_periph_release(periph);
 968                 return (error);
 969         }
 970
 971         unit = periph->unit_number;
 972         softc = (struct da_softc *)periph->softc;
 973         softc->flags |= DA_FLAG_OPEN;
 974
 975         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
 976             ("daopen\n"));
 977
 978         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 979                 /* Invalidate our pack information. */
 980                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 981         }
 982
 983         dareprobe(periph);
 984
 985         /* Wait for the disk size update.  */
 986         error = msleep(&softc->disk->d_mediasize, periph->sim->mtx, PRIBIO,
 987             "dareprobe", 0);
 988         if (error != 0)
 989                 xpt_print(periph->path, "unable to retrieve capacity data");
 990
 991         if (periph->flags & CAM_PERIPH_INVALID ||
 992             softc->disk->d_sectorsize == 0 ||
 993             softc->disk->d_mediasize == 0)
 994                 error = ENXIO;
 995
 996         if (error == 0 && (softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 997             (softc->quirks & DA_Q_NO_PREVENT) == 0)
 998                 daprevent(periph, PR_PREVENT);
 999
1000         if (error == 0)
1001                 softc->flags |= DA_FLAG_SAW_MEDIA;
1002
1003         cam_periph_unhold(periph);
1004         cam_periph_unlock(periph);
1005
1006         if (error != 0) {
1007                 softc->flags &= ~DA_FLAG_OPEN;
1008                 cam_periph_release(periph);
1009         }
1010
1011         return (error);
1012 }
1013
1014 static int
1015 daclose(struct disk *dp)
1016 {
1017         struct  cam_periph *periph;
1018         struct  da_softc *softc;
1019
1020         periph = (struct cam_periph *)dp->d_drv1;
1021         if (periph == NULL)
1022                 return (0);
1023
1024         cam_periph_lock(periph);
1025         if (cam_periph_hold(periph, PRIBIO) != 0) {
1026                 cam_periph_unlock(periph);
1027                 cam_periph_release(periph);
1028                 return (0);
1029         }
1030
1031         softc = (struct da_softc *)periph->softc;
1032
1033         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE | CAM_DEBUG_PERIPH,
1034             ("daclose\n"));
1035
1036         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0
1037          && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
1038                 union   ccb *ccb;
1039
1040                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1041
1042                 scsi_synchronize_cache(&ccb->csio,
1043                                        /*retries*/1,
1044                                        /*cbfcnp*/dadone,
1045                                        MSG_SIMPLE_Q_TAG,
1046                                        /*begin_lba*/0,/* Cover the whole disk */
1047                                        /*lb_count*/0,
1048                                        SSD_FULL_SIZE,
1049                                        5 * 60 * 1000);
1050
1051                 cam_periph_runccb(ccb, daerror, /*cam_flags*/0,
1052                                   /*sense_flags*/SF_RETRY_UA | SF_QUIET_IR,
1053                                   softc->disk->d_devstat);
1054                 xpt_release_ccb(ccb);
1055
1056         }
1057
1058         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
1059                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1060                         daprevent(periph, PR_ALLOW);
1061                 /*
1062                  * If we've got removeable media, mark the blocksize as
1063                  * unavailable, since it could change when new media is
1064                  * inserted.
1065                  */
1066                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1067         }
1068
1069         softc->flags &= ~DA_FLAG_OPEN;
1070         cam_periph_unhold(periph);
1071         cam_periph_unlock(periph);
1072         cam_periph_release(periph);
1073         return (0);
1074 }
1075
1076 static void
1077 daschedule(struct cam_periph *periph)
1078 {
1079         struct da_softc *softc = (struct da_softc *)periph->softc;
1080         uint32_t prio;
1081
1082         /* Check if cam_periph_getccb() was called. */
1083         prio = periph->immediate_priority;
1084
1085         /* Check if we have more work to do. */
1086         if (bioq_first(&softc->bio_queue) ||
1087             (!softc->delete_running && bioq_first(&softc->delete_queue)) ||
1088             softc->tur) {
1089                 prio = CAM_PRIORITY_NORMAL;
1090         }
1091
1092         /* Schedule CCB if any of above is true. */
1093         if (prio != CAM_PRIORITY_NONE)
1094                 xpt_schedule(periph, prio);
1095 }
1096
1097 /*
1098  * Actually translate the requested transfer into one the physical driver
1099  * can understand.  The transfer is described by a buf and will include
1100  * only one physical transfer.
1101  */
1102 static void
1103 dastrategy(struct bio *bp)
1104 {
1105         struct cam_periph *periph;
1106         struct da_softc *softc;
1107
1108         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1109         if (periph == NULL) {
1110                 biofinish(bp, NULL, ENXIO);
1111                 return;
1112         }
1113         softc = (struct da_softc *)periph->softc;
1114
1115         cam_periph_lock(periph);
1116
1117         /*
1118          * If the device has been made invalid, error out
1119          */
1120         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1121                 cam_periph_unlock(periph);
1122                 biofinish(bp, NULL, ENXIO);
1123                 return;
1124         }
1125
1126         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastrategy(%p)\n", bp));
1127
1128         /*
1129          * Place it in the queue of disk activities for this disk
1130          */
1131         if (bp->bio_cmd == BIO_DELETE) {
1132                 if (bp->bio_bcount == 0)
1133                         biodone(bp);
1134                 else
1135                         bioq_disksort(&softc->delete_queue, bp);
1136         } else
1137                 bioq_disksort(&softc->bio_queue, bp);
1138
1139         /*
1140          * Schedule ourselves for performing the work.
1141          */
1142         daschedule(periph);
1143         cam_periph_unlock(periph);
1144
1145         return;
1146 }
1147
1148 static int
1149 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1150 {
1151         struct      cam_periph *periph;
1152         struct      da_softc *softc;
1153         u_int       secsize;
1154         struct      ccb_scsiio csio;
1155         struct      disk *dp;
1156         int         error = 0;
1157
1158         dp = arg;
1159         periph = dp->d_drv1;
1160         if (periph == NULL)
1161                 return (ENXIO);
1162         softc = (struct da_softc *)periph->softc;
1163         cam_periph_lock(periph);
1164         secsize = softc->params.secsize;
1165
1166         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1167                 cam_periph_unlock(periph);
1168                 return (ENXIO);
1169         }
1170
1171         if (length > 0) {
1172                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1173                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1174                 scsi_read_write(&csio,
1175                                 /*retries*/0,
1176                                 dadone,
1177                                 MSG_ORDERED_Q_TAG,
1178                                 /*read*/FALSE,
1179                                 /*byte2*/0,
1180                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1181                                 offset / secsize,
1182                                 length / secsize,
1183                                 /*data_ptr*/(u_int8_t *) virtual,
1184                                 /*dxfer_len*/length,
1185                                 /*sense_len*/SSD_FULL_SIZE,
1186                                 da_default_timeout * 1000);
1187                 xpt_polled_action((union ccb *)&csio);
1188
1189                 error = cam_periph_error((union ccb *)&csio,
1190                     0, SF_NO_RECOVERY | SF_NO_RETRY, NULL);
1191                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1192                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1193                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1194                 if (error != 0)
1195                         printf("Aborting dump due to I/O error.\n");
1196                 cam_periph_unlock(periph);
1197                 return (error);
1198         }
1199
1200         /*
1201          * Sync the disk cache contents to the physical media.
1202          */
1203         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1204
1205                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1206                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1207                 scsi_synchronize_cache(&csio,
1208                                        /*retries*/0,
1209                                        /*cbfcnp*/dadone,
1210                                        MSG_SIMPLE_Q_TAG,
1211                                        /*begin_lba*/0,/* Cover the whole disk */
1212                                        /*lb_count*/0,
1213                                        SSD_FULL_SIZE,
1214                                        5 * 60 * 1000);
1215                 xpt_polled_action((union ccb *)&csio);
1216
1217                 error = cam_periph_error((union ccb *)&csio,
1218                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
1219                 if ((csio.ccb_h.status & CAM_DEV_QFRZN) != 0)
1220                         cam_release_devq(csio.ccb_h.path, /*relsim_flags*/0,
1221                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
1222                 if (error != 0)
1223                         xpt_print(periph->path, "Synchronize cache failed\n");
1224         }
1225         cam_periph_unlock(periph);
1226         return (error);
1227 }
1228
1229 static int
1230 dagetattr(struct bio *bp)
1231 {
1232         int ret;
1233         struct cam_periph *periph;
1234
1235         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1236         if (periph == NULL)
1237                 return (ENXIO);
1238
1239         cam_periph_lock(periph);
1240         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1241             periph->path);
1242         cam_periph_unlock(periph);
1243         if (ret == 0)
1244                 bp->bio_completed = bp->bio_length;
1245         return ret;
1246 }
1247
1248 static void
1249 dainit(void)
1250 {
1251         cam_status status;
1252
1253         /*
1254          * Install a global async callback.  This callback will
1255          * receive async callbacks like "new device found".
1256          */
1257         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1258
1259         if (status != CAM_REQ_CMP) {
1260                 printf("da: Failed to attach master async callback "
1261                        "due to status 0x%x!\n", status);
1262         } else if (da_send_ordered) {
1263
1264                 /* Register our shutdown event handler */
1265                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1266                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1267                     printf("dainit: shutdown event registration failed!\n");
1268         }
1269 }
1270
1271 /*
1272  * Callback from GEOM, called when it has finished cleaning up its
1273  * resources.
1274  */
1275 static void
1276 dadiskgonecb(struct disk *dp)
1277 {
1278         struct cam_periph *periph;
1279
1280         periph = (struct cam_periph *)dp->d_drv1;
1281
1282         cam_periph_release(periph);
1283 }
1284
1285 static void
1286 daoninvalidate(struct cam_periph *periph)
1287 {
1288         struct da_softc *softc;
1289
1290         softc = (struct da_softc *)periph->softc;
1291
1292         /*
1293          * De-register any async callbacks.
1294          */
1295         xpt_register_async(0, daasync, periph, periph->path);
1296
1297         softc->flags |= DA_FLAG_PACK_INVALID;
1298
1299         /*
1300          * Return all queued I/O with ENXIO.
1301          * XXX Handle any transactions queued to the card
1302          *     with XPT_ABORT_CCB.
1303          */
1304         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1305         bioq_flush(&softc->delete_queue, NULL, ENXIO);
1306
1307         /*
1308          * Tell GEOM that we've gone away, we'll get a callback when it is
1309          * done cleaning up its resources.
1310          */
1311         disk_gone(softc->disk);
1312
1313         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1314                   softc->outstanding_cmds, periph->refcount);
1315 }
1316
1317 static void
1318 dacleanup(struct cam_periph *periph)
1319 {
1320         struct da_softc *softc;
1321
1322         softc = (struct da_softc *)periph->softc;
1323
1324         xpt_print(periph->path, "removing device entry\n");
1325         cam_periph_unlock(periph);
1326
1327         /*
1328          * If we can't free the sysctl tree, oh well...
1329          */
1330         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1331             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1332                 xpt_print(periph->path, "can't remove sysctl context\n");
1333         }
1334
1335         callout_drain(&softc->mediapoll_c);
1336         disk_destroy(softc->disk);
1337         callout_drain(&softc->sendordered_c);
1338         free(softc, M_DEVBUF);
1339         cam_periph_lock(periph);
1340 }
1341
1342 static void
1343 daasync(void *callback_arg, u_int32_t code,
1344         struct cam_path *path, void *arg)
1345 {
1346         struct cam_periph *periph;
1347         struct da_softc *softc;
1348
1349         periph = (struct cam_periph *)callback_arg;
1350         switch (code) {
1351         case AC_FOUND_DEVICE:
1352         {
1353                 struct ccb_getdev *cgd;
1354                 cam_status status;
1355
1356                 cgd = (struct ccb_getdev *)arg;
1357                 if (cgd == NULL)
1358                         break;
1359
1360                 if (cgd->protocol != PROTO_SCSI)
1361                         break;
1362
1363                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1364                     && SID_TYPE(&cgd->inq_data) != T_RBC
1365                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1366                         break;
1367
1368                 /*
1369                  * Allocate a peripheral instance for
1370                  * this device and start the probe
1371                  * process.
1372                  */
1373                 status = cam_periph_alloc(daregister, daoninvalidate,
1374                                           dacleanup, dastart,
1375                                           "da", CAM_PERIPH_BIO,
1376                                           cgd->ccb_h.path, daasync,
1377                                           AC_FOUND_DEVICE, cgd);
1378
1379                 if (status != CAM_REQ_CMP
1380                  && status != CAM_REQ_INPROG)
1381                         printf("daasync: Unable to attach to new device "
1382                                 "due to status 0x%x\n", status);
1383                 return;
1384         }
1385         case AC_ADVINFO_CHANGED:
1386         {
1387                 uintptr_t buftype;
1388
1389                 buftype = (uintptr_t)arg;
1390                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1391                         struct da_softc *softc;
1392
1393                         softc = periph->softc;
1394                         disk_attr_changed(softc->disk, "GEOM::physpath",
1395                                           M_NOWAIT);
1396                 }
1397                 break;
1398         }
1399         case AC_UNIT_ATTENTION:
1400         {
1401                 union ccb *ccb;
1402                 int error_code, sense_key, asc, ascq;
1403
1404                 softc = (struct da_softc *)periph->softc;
1405                 ccb = (union ccb *)arg;
1406
1407                 /*
1408                  * Handle all UNIT ATTENTIONs except our own,
1409                  * as they will be handled by daerror().
1410                  */
1411                 if (xpt_path_periph(ccb->ccb_h.path) != periph &&
1412                     scsi_extract_sense_ccb(ccb,
1413                      &error_code, &sense_key, &asc, &ascq)) {
1414                         if (asc == 0x2A && ascq == 0x09) {
1415                                 xpt_print(ccb->ccb_h.path,
1416                                     "capacity data has changed\n");
1417                                 dareprobe(periph);
1418                         } else if (asc == 0x28 && ascq == 0x00)
1419                                 disk_media_changed(softc->disk, M_NOWAIT);
1420                 }
1421                 cam_periph_async(periph, code, path, arg);
1422                 break;
1423         }
1424         case AC_SCSI_AEN:
1425                 softc = (struct da_softc *)periph->softc;
1426                 if (softc->state == DA_STATE_NORMAL && !softc->tur) {
1427                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
1428                                 softc->tur = 1;
1429                                 xpt_schedule(periph, CAM_PRIORITY_DEV);
1430                         }
1431                 }
1432                 /* FALLTHROUGH */
1433         case AC_SENT_BDR:
1434         case AC_BUS_RESET:
1435         {
1436                 struct ccb_hdr *ccbh;
1437
1438                 softc = (struct da_softc *)periph->softc;
1439                 /*
1440                  * Don't fail on the expected unit attention
1441                  * that will occur.
1442                  */
1443                 softc->flags |= DA_FLAG_RETRY_UA;
1444                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1445                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1446                 break;
1447         }
1448         default:
1449                 break;
1450         }
1451         cam_periph_async(periph, code, path, arg);
1452 }
1453
1454 static void
1455 dasysctlinit(void *context, int pending)
1456 {
1457         struct cam_periph *periph;
1458         struct da_softc *softc;
1459         char tmpstr[80], tmpstr2[80];
1460         struct ccb_trans_settings cts;
1461
1462         periph = (struct cam_periph *)context;
1463         /*
1464          * periph was held for us when this task was enqueued
1465          */
1466         if (periph->flags & CAM_PERIPH_INVALID) {
1467                 cam_periph_release(periph);
1468                 return;
1469         }
1470
1471         softc = (struct da_softc *)periph->softc;
1472         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1473         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1474
1475         sysctl_ctx_init(&softc->sysctl_ctx);
1476         softc->flags |= DA_FLAG_SCTX_INIT;
1477         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1478                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1479                 CTLFLAG_RD, 0, tmpstr);
1480         if (softc->sysctl_tree == NULL) {
1481                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1482                 cam_periph_release(periph);
1483                 return;
1484         }
1485
1486         /*
1487          * Now register the sysctl handler, so the user can change the value on
1488          * the fly.
1489          */
1490         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1491                 OID_AUTO, "delete_method", CTLTYPE_STRING | CTLFLAG_RW,
1492                 &softc->delete_method, 0, dadeletemethodsysctl, "A",
1493                 "BIO_DELETE execution method");
1494         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1495                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1496                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1497                 "Minimum CDB size");
1498
1499         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1500                        SYSCTL_CHILDREN(softc->sysctl_tree),
1501                        OID_AUTO,
1502                        "error_inject",
1503                        CTLFLAG_RW,
1504                        &softc->error_inject,
1505                        0,
1506                        "error_inject leaf");
1507
1508
1509         /*
1510          * Add some addressing info.
1511          */
1512         memset(&cts, 0, sizeof (cts));
1513         xpt_setup_ccb(&cts.ccb_h, periph->path, CAM_PRIORITY_NONE);
1514         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1515         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1516         cam_periph_lock(periph);
1517         xpt_action((union ccb *)&cts);
1518         cam_periph_unlock(periph);
1519         if (cts.ccb_h.status != CAM_REQ_CMP) {
1520                 cam_periph_release(periph);
1521                 return;
1522         }
1523         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1524                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1525                 if (fc->valid & CTS_FC_VALID_WWPN) {
1526                         softc->wwpn = fc->wwpn;
1527                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1528                             SYSCTL_CHILDREN(softc->sysctl_tree),
1529                             OID_AUTO, "wwpn", CTLFLAG_RD,
1530                             &softc->wwpn, "World Wide Port Name");
1531                 }
1532         }
1533         cam_periph_release(periph);
1534 }
1535
1536 static int
1537 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1538 {
1539         int error, value;
1540
1541         value = *(int *)arg1;
1542
1543         error = sysctl_handle_int(oidp, &value, 0, req);
1544
1545         if ((error != 0)
1546          || (req->newptr == NULL))
1547                 return (error);
1548
1549         /*
1550          * Acceptable values here are 6, 10, 12 or 16.
1551          */
1552         if (value < 6)
1553                 value = 6;
1554         else if ((value > 6)
1555               && (value <= 10))
1556                 value = 10;
1557         else if ((value > 10)
1558               && (value <= 12))
1559                 value = 12;
1560         else if (value > 12)
1561                 value = 16;
1562
1563         *(int *)arg1 = value;
1564
1565         return (0);
1566 }
1567
1568 static int
1569 dadeletemethodsysctl(SYSCTL_HANDLER_ARGS)
1570 {
1571         char buf[16];
1572         int error;
1573         const char *p;
1574         int i, value;
1575
1576         value = *(int *)arg1;
1577         if (value < 0 || value > DA_DELETE_MAX)
1578                 p = "UNKNOWN";
1579         else
1580                 p = da_delete_method_names[value];
1581         strncpy(buf, p, sizeof(buf));
1582         error = sysctl_handle_string(oidp, buf, sizeof(buf), req);
1583         if (error != 0 || req->newptr == NULL)
1584                 return (error);
1585         for (i = 0; i <= DA_DELETE_MAX; i++) {
1586                 if (strcmp(buf, da_delete_method_names[i]) != 0)
1587                         continue;
1588                 *(int *)arg1 = i;
1589                 return (0);
1590         }
1591         return (EINVAL);
1592 }
1593
1594 static cam_status
1595 daregister(struct cam_periph *periph, void *arg)
1596 {
1597         struct da_softc *softc;
1598         struct ccb_pathinq cpi;
1599         struct ccb_getdev *cgd;
1600         char tmpstr[80];
1601         caddr_t match;
1602
1603         cgd = (struct ccb_getdev *)arg;
1604         if (cgd == NULL) {
1605                 printf("daregister: no getdev CCB, can't register device\n");
1606                 return(CAM_REQ_CMP_ERR);
1607         }
1608
1609         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1610             M_NOWAIT|M_ZERO);
1611
1612         if (softc == NULL) {
1613                 printf("daregister: Unable to probe new device. "
1614                        "Unable to allocate softc\n");
1615                 return(CAM_REQ_CMP_ERR);
1616         }
1617
1618         LIST_INIT(&softc->pending_ccbs);
1619         softc->state = DA_STATE_PROBE;
1620         bioq_init(&softc->bio_queue);
1621         bioq_init(&softc->delete_queue);
1622         bioq_init(&softc->delete_run_queue);
1623         if (SID_IS_REMOVABLE(&cgd->inq_data))
1624                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1625         softc->unmap_max_ranges = UNMAP_MAX_RANGES;
1626         softc->unmap_max_lba = 1024*1024*2;
1627
1628         periph->softc = softc;
1629
1630         /*
1631          * See if this device has any quirks.
1632          */
1633         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1634                                (caddr_t)da_quirk_table,
1635                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1636                                sizeof(*da_quirk_table), scsi_inquiry_match);
1637
1638         if (match != NULL)
1639                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1640         else
1641                 softc->quirks = DA_Q_NONE;
1642
1643         /* Check if the SIM does not want 6 byte commands */
1644         bzero(&cpi, sizeof(cpi));
1645         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1646         cpi.ccb_h.func_code = XPT_PATH_INQ;
1647         xpt_action((union ccb *)&cpi);
1648         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1649                 softc->quirks |= DA_Q_NO_6_BYTE;
1650
1651         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1652
1653         /*
1654          * Take an exclusive refcount on the periph while dastart is called
1655          * to finish the probe.  The reference will be dropped in dadone at
1656          * the end of probe.
1657          */
1658         (void)cam_periph_hold(periph, PRIBIO);
1659
1660         /*
1661          * Schedule a periodic event to occasionally send an
1662          * ordered tag to a device.
1663          */
1664         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1665         callout_reset(&softc->sendordered_c,
1666             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1667             dasendorderedtag, softc);
1668
1669         mtx_unlock(periph->sim->mtx);
1670         /*
1671          * RBC devices don't have to support READ(6), only READ(10).
1672          */
1673         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1674                 softc->minimum_cmd_size = 10;
1675         else
1676                 softc->minimum_cmd_size = 6;
1677
1678         /*
1679          * Load the user's default, if any.
1680          */
1681         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1682                  periph->unit_number);
1683         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1684
1685         /*
1686          * 6, 10, 12 and 16 are the currently permissible values.
1687          */
1688         if (softc->minimum_cmd_size < 6)
1689                 softc->minimum_cmd_size = 6;
1690         else if ((softc->minimum_cmd_size > 6)
1691               && (softc->minimum_cmd_size <= 10))
1692                 softc->minimum_cmd_size = 10;
1693         else if ((softc->minimum_cmd_size > 10)
1694               && (softc->minimum_cmd_size <= 12))
1695                 softc->minimum_cmd_size = 12;
1696         else if (softc->minimum_cmd_size > 12)
1697                 softc->minimum_cmd_size = 16;
1698
1699         /* Predict whether device may support READ CAPACITY(16). */
1700         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
1701                 softc->flags |= DA_FLAG_CAN_RC16;
1702                 softc->state = DA_STATE_PROBE2;
1703         }
1704
1705         /*
1706          * Register this media as a disk.
1707          */
1708         softc->disk = disk_alloc();
1709         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1710                           periph->unit_number, 0,
1711                           DEVSTAT_BS_UNAVAILABLE,
1712                           SID_TYPE(&cgd->inq_data) |
1713                           XPORT_DEVSTAT_TYPE(cpi.transport),
1714                           DEVSTAT_PRIORITY_DISK);
1715         softc->disk->d_open = daopen;
1716         softc->disk->d_close = daclose;
1717         softc->disk->d_strategy = dastrategy;
1718         softc->disk->d_dump = dadump;
1719         softc->disk->d_getattr = dagetattr;
1720         softc->disk->d_gone = dadiskgonecb;
1721         softc->disk->d_name = "da";
1722         softc->disk->d_drv1 = periph;
1723         if (cpi.maxio == 0)
1724                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1725         else if (cpi.maxio > MAXPHYS)
1726                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1727         else
1728                 softc->disk->d_maxsize = cpi.maxio;
1729         softc->disk->d_unit = periph->unit_number;
1730         softc->disk->d_flags = 0;
1731         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1732                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1733         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1734             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1735         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1736         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1737             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1738             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1739         softc->disk->d_hba_vendor = cpi.hba_vendor;
1740         softc->disk->d_hba_device = cpi.hba_device;
1741         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1742         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1743
1744         /*
1745          * Acquire a reference to the periph before we register with GEOM.
1746          * We'll release this reference once GEOM calls us back (via
1747          * dadiskgonecb()) telling us that our provider has been freed.
1748          */
1749         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
1750                 xpt_print(periph->path, "%s: lost periph during "
1751                           "registration!\n", __func__);
1752                 mtx_lock(periph->sim->mtx);
1753                 return (CAM_REQ_CMP_ERR);
1754         }
1755
1756         disk_create(softc->disk, DISK_VERSION);
1757         mtx_lock(periph->sim->mtx);
1758
1759         /*
1760          * Add async callbacks for events of interest.
1761          * I don't bother checking if this fails as,
1762          * in most cases, the system will function just
1763          * fine without them and the only alternative
1764          * would be to not attach the device on failure.
1765          */
1766         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE |
1767             AC_ADVINFO_CHANGED | AC_SCSI_AEN | AC_UNIT_ATTENTION,
1768             daasync, periph, periph->path);
1769
1770         /*
1771          * Emit an attribute changed notification just in case
1772          * physical path information arrived before our async
1773          * event handler was registered, but after anyone attaching
1774          * to our disk device polled it.
1775          */
1776         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
1777
1778         /*
1779          * Schedule a periodic media polling events.
1780          */
1781         callout_init_mtx(&softc->mediapoll_c, periph->sim->mtx, 0);
1782         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) &&
1783             (cgd->inq_flags & SID_AEN) == 0 &&
1784             da_poll_period != 0)
1785                 callout_reset(&softc->mediapoll_c, da_poll_period * hz,
1786                     damediapoll, periph);
1787
1788         xpt_schedule(periph, CAM_PRIORITY_DEV);
1789
1790         return(CAM_REQ_CMP);
1791 }
1792
1793 static void
1794 dastart(struct cam_periph *periph, union ccb *start_ccb)
1795 {
1796         struct da_softc *softc;
1797
1798         softc = (struct da_softc *)periph->softc;
1799
1800         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dastart\n"));
1801
1802         switch (softc->state) {
1803         case DA_STATE_NORMAL:
1804         {
1805                 struct bio *bp, *bp1;
1806                 uint8_t tag_code;
1807
1808                 /* Execute immediate CCB if waiting. */
1809                 if (periph->immediate_priority <= periph->pinfo.priority) {
1810                         CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1811                                         ("queuing for immediate ccb\n"));
1812                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1813                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1814                                           periph_links.sle);
1815                         periph->immediate_priority = CAM_PRIORITY_NONE;
1816                         wakeup(&periph->ccb_list);
1817                         /* May have more work to do, so ensure we stay scheduled */
1818                         daschedule(periph);
1819                         break;
1820                 }
1821
1822                 /* Run BIO_DELETE if not running yet. */
1823                 if (!softc->delete_running &&
1824                     (bp = bioq_first(&softc->delete_queue)) != NULL) {
1825                     uint64_t lba;
1826                     u_int count;
1827
1828                     if (softc->delete_method == DA_DELETE_UNMAP) {
1829                         uint8_t *buf = softc->unmap_buf;
1830                         uint64_t lastlba = (uint64_t)-1;
1831                         uint32_t lastcount = 0;
1832                         int blocks = 0, off, ranges = 0;
1833
1834                         softc->delete_running = 1;
1835                         bzero(softc->unmap_buf, sizeof(softc->unmap_buf));
1836                         bp1 = bp;
1837                         do {
1838                                 bioq_remove(&softc->delete_queue, bp1);
1839                                 if (bp1 != bp)
1840                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
1841                                 lba = bp1->bio_pblkno;
1842                                 count = bp1->bio_bcount / softc->params.secsize;
1843
1844                                 /* Try to extend the previous range. */
1845                                 if (lba == lastlba) {
1846                                         lastcount += count;
1847                                         off = (ranges - 1) * 16 + 8;
1848                                         scsi_ulto4b(lastcount, &buf[off + 8]);
1849                                 } else if (count > 0) {
1850                                         off = ranges * 16 + 8;
1851                                         scsi_u64to8b(lba, &buf[off + 0]);
1852                                         scsi_ulto4b(count, &buf[off + 8]);
1853                                         lastcount = count;
1854                                         ranges++;
1855                                 }
1856                                 blocks += count;
1857                                 lastlba = lba + count;
1858                                 bp1 = bioq_first(&softc->delete_queue);
1859                                 if (bp1 == NULL ||
1860                                     ranges >= softc->unmap_max_ranges ||
1861                                     blocks + bp1->bio_bcount /
1862                                      softc->params.secsize > softc->unmap_max_lba)
1863                                         break;
1864                         } while (1);
1865                         scsi_ulto2b(ranges * 16 + 6, &buf[0]);
1866                         scsi_ulto2b(ranges * 16, &buf[2]);
1867
1868                         scsi_unmap(&start_ccb->csio,
1869                                         /*retries*/da_retry_count,
1870                                         /*cbfcnp*/dadone,
1871                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
1872                                         /*byte2*/0,
1873                                         /*data_ptr*/ buf,
1874                                         /*dxfer_len*/ ranges * 16 + 8,
1875                                         /*sense_len*/SSD_FULL_SIZE,
1876                                         da_default_timeout * 1000);
1877                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
1878                         goto out;
1879                     } else if (softc->delete_method == DA_DELETE_ZERO ||
1880                                softc->delete_method == DA_DELETE_WS10 ||
1881                                softc->delete_method == DA_DELETE_WS16) {
1882                         softc->delete_running = 1;
1883                         lba = bp->bio_pblkno;
1884                         count = 0;
1885                         bp1 = bp;
1886                         do {
1887                                 bioq_remove(&softc->delete_queue, bp1);
1888                                 if (bp1 != bp)
1889                                         bioq_insert_tail(&softc->delete_run_queue, bp1);
1890                                 count += bp1->bio_bcount / softc->params.secsize;
1891                                 bp1 = bioq_first(&softc->delete_queue);
1892                                 if (bp1 == NULL ||
1893                                     lba + count != bp1->bio_pblkno ||
1894                                     count + bp1->bio_bcount /
1895                                      softc->params.secsize > 0xffff)
1896                                         break;
1897                         } while (1);
1898
1899                         scsi_write_same(&start_ccb->csio,
1900                                         /*retries*/da_retry_count,
1901                                         /*cbfcnp*/dadone,
1902                                         /*tag_action*/MSG_SIMPLE_Q_TAG,
1903                                         /*byte2*/softc->delete_method ==
1904                                             DA_DELETE_ZERO ? 0 : SWS_UNMAP,
1905                                         softc->delete_method ==
1906                                             DA_DELETE_WS16 ? 16 : 10,
1907                                         /*lba*/lba,
1908                                         /*block_count*/count,
1909                                         /*data_ptr*/ __DECONST(void *,
1910                                             zero_region),
1911                                         /*dxfer_len*/ softc->params.secsize,
1912                                         /*sense_len*/SSD_FULL_SIZE,
1913                                         da_default_timeout * 1000);
1914                         start_ccb->ccb_h.ccb_state = DA_CCB_DELETE;
1915                         goto out;
1916                     } else {
1917                         bioq_flush(&softc->delete_queue, NULL, 0);
1918                         /* FALLTHROUGH */
1919                     }
1920                 }
1921
1922                 /* Run regular command. */
1923                 bp = bioq_takefirst(&softc->bio_queue);
1924                 if (bp == NULL) {
1925                         if (softc->tur) {
1926                                 softc->tur = 0;
1927                                 scsi_test_unit_ready(&start_ccb->csio,
1928                                      /*retries*/ da_retry_count,
1929                                      dadone,
1930                                      MSG_SIMPLE_Q_TAG,
1931                                      SSD_FULL_SIZE,
1932                                      da_default_timeout * 1000);
1933                                 start_ccb->ccb_h.ccb_bp = NULL;
1934                                 start_ccb->ccb_h.ccb_state = DA_CCB_TUR;
1935                                 xpt_action(start_ccb);
1936                         } else
1937                                 xpt_release_ccb(start_ccb);
1938                         break;
1939                 }
1940                 if (softc->tur) {
1941                         softc->tur = 0;
1942                         cam_periph_release_locked(periph);
1943                 }
1944
1945                 if ((bp->bio_flags & BIO_ORDERED) != 0 ||
1946                     (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1947                         softc->flags &= ~DA_FLAG_NEED_OTAG;
1948                         softc->ordered_tag_count++;
1949                         tag_code = MSG_ORDERED_Q_TAG;
1950                 } else {
1951                         tag_code = MSG_SIMPLE_Q_TAG;
1952                 }
1953
1954                 switch (bp->bio_cmd) {
1955                 case BIO_READ:
1956                 case BIO_WRITE:
1957                         scsi_read_write(&start_ccb->csio,
1958                                         /*retries*/da_retry_count,
1959                                         /*cbfcnp*/dadone,
1960                                         /*tag_action*/tag_code,
1961                                         /*read_op*/bp->bio_cmd
1962                                                 == BIO_READ,
1963                                         /*byte2*/0,
1964                                         softc->minimum_cmd_size,
1965                                         /*lba*/bp->bio_pblkno,
1966                                         /*block_count*/bp->bio_bcount /
1967                                         softc->params.secsize,
1968                                         /*data_ptr*/ bp->bio_data,
1969                                         /*dxfer_len*/ bp->bio_bcount,
1970                                         /*sense_len*/SSD_FULL_SIZE,
1971                                         da_default_timeout * 1000);
1972                         break;
1973                 case BIO_FLUSH:
1974                         /*
1975                          * BIO_FLUSH doesn't currently communicate
1976                          * range data, so we synchronize the cache
1977                          * over the whole disk.  We also force
1978                          * ordered tag semantics the flush applies
1979                          * to all previously queued I/O.
1980                          */
1981                         scsi_synchronize_cache(&start_ccb->csio,
1982                                                /*retries*/1,
1983                                                /*cbfcnp*/dadone,
1984                                                MSG_ORDERED_Q_TAG,
1985                                                /*begin_lba*/0,
1986                                                /*lb_count*/0,
1987                                                SSD_FULL_SIZE,
1988                                                da_default_timeout*1000);
1989                         break;
1990                 }
1991                 start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1992
1993 out:
1994                 /*
1995                  * Block out any asyncronous callbacks
1996                  * while we touch the pending ccb list.
1997                  */
1998                 LIST_INSERT_HEAD(&softc->pending_ccbs,
1999                                  &start_ccb->ccb_h, periph_links.le);
2000                 softc->outstanding_cmds++;
2001
2002                 /* We expect a unit attention from this device */
2003                 if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
2004                         start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
2005                         softc->flags &= ~DA_FLAG_RETRY_UA;
2006                 }
2007
2008                 start_ccb->ccb_h.ccb_bp = bp;
2009                 xpt_action(start_ccb);
2010
2011                 /* May have more work to do, so ensure we stay scheduled */
2012                 daschedule(periph);
2013                 break;
2014         }
2015         case DA_STATE_PROBE:
2016         {
2017                 struct ccb_scsiio *csio;
2018                 struct scsi_read_capacity_data *rcap;
2019
2020                 rcap = (struct scsi_read_capacity_data *)
2021                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
2022                 if (rcap == NULL) {
2023                         printf("dastart: Couldn't malloc read_capacity data\n");
2024                         /* da_free_periph??? */
2025                         break;
2026                 }
2027                 csio = &start_ccb->csio;
2028                 scsi_read_capacity(csio,
2029                                    /*retries*/4,
2030                                    dadone,
2031                                    MSG_SIMPLE_Q_TAG,
2032                                    rcap,
2033                                    SSD_FULL_SIZE,
2034                                    /*timeout*/5000);
2035                 start_ccb->ccb_h.ccb_bp = NULL;
2036                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
2037                 xpt_action(start_ccb);
2038                 break;
2039         }
2040         case DA_STATE_PROBE2:
2041         {
2042                 struct ccb_scsiio *csio;
2043                 struct scsi_read_capacity_data_long *rcaplong;
2044
2045                 rcaplong = (struct scsi_read_capacity_data_long *)
2046                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
2047                 if (rcaplong == NULL) {
2048                         printf("dastart: Couldn't malloc read_capacity data\n");
2049                         /* da_free_periph??? */
2050                         break;
2051                 }
2052                 csio = &start_ccb->csio;
2053                 scsi_read_capacity_16(csio,
2054                                       /*retries*/ 4,
2055                                       /*cbfcnp*/ dadone,
2056                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
2057                                       /*lba*/ 0,
2058                                       /*reladr*/ 0,
2059                                       /*pmi*/ 0,
2060                                       rcaplong,
2061                                       /*sense_len*/ SSD_FULL_SIZE,
2062                                       /*timeout*/ 60000);
2063                 start_ccb->ccb_h.ccb_bp = NULL;
2064                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
2065                 xpt_action(start_ccb);
2066                 break;
2067         }
2068         }
2069 }
2070
2071 static int
2072 cmd6workaround(union ccb *ccb)
2073 {
2074         struct scsi_rw_6 cmd6;
2075         struct scsi_rw_10 *cmd10;
2076         struct da_softc *softc;
2077         u_int8_t *cdb;
2078         struct bio *bp;
2079         int frozen;
2080
2081         cdb = ccb->csio.cdb_io.cdb_bytes;
2082         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
2083
2084         if (ccb->ccb_h.ccb_state == DA_CCB_DELETE) {
2085                 if (softc->delete_method == DA_DELETE_UNMAP) {
2086                         xpt_print(ccb->ccb_h.path, "UNMAP is not supported, "
2087                             "switching to WRITE SAME(16) with UNMAP.\n");
2088                         softc->delete_method = DA_DELETE_WS16;
2089                 } else if (softc->delete_method == DA_DELETE_WS16) {
2090                         xpt_print(ccb->ccb_h.path,
2091                             "WRITE SAME(16) with UNMAP is not supported, "
2092                             "disabling BIO_DELETE.\n");
2093                         softc->delete_method = DA_DELETE_DISABLE;
2094                 } else if (softc->delete_method == DA_DELETE_WS10) {
2095                         xpt_print(ccb->ccb_h.path,
2096                             "WRITE SAME(10) with UNMAP is not supported, "
2097                             "disabling BIO_DELETE.\n");
2098                         softc->delete_method = DA_DELETE_DISABLE;
2099                 } else if (softc->delete_method == DA_DELETE_ZERO) {
2100                         xpt_print(ccb->ccb_h.path,
2101                             "WRITE SAME(10) is not supported, "
2102                             "disabling BIO_DELETE.\n");
2103                         softc->delete_method = DA_DELETE_DISABLE;
2104                 } else
2105                         softc->delete_method = DA_DELETE_DISABLE;
2106                 while ((bp = bioq_takefirst(&softc->delete_run_queue))
2107                     != NULL)
2108                         bioq_disksort(&softc->delete_queue, bp);
2109                 bioq_insert_tail(&softc->delete_queue,
2110                     (struct bio *)ccb->ccb_h.ccb_bp);
2111                 ccb->ccb_h.ccb_bp = NULL;
2112                 return (0);
2113         }
2114
2115         /* Translation only possible if CDB is an array and cmd is R/W6 */
2116         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
2117             (*cdb != READ_6 && *cdb != WRITE_6))
2118                 return 0;
2119
2120         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
2121             "increasing minimum_cmd_size to 10.\n");
2122         softc->minimum_cmd_size = 10;
2123
2124         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
2125         cmd10 = (struct scsi_rw_10 *)cdb;
2126         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
2127         cmd10->byte2 = 0;
2128         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
2129         cmd10->reserved = 0;
2130         scsi_ulto2b(cmd6.length, cmd10->length);
2131         cmd10->control = cmd6.control;
2132         ccb->csio.cdb_len = sizeof(*cmd10);
2133
2134         /* Requeue request, unfreezing queue if necessary */
2135         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
2136         ccb->ccb_h.status = CAM_REQUEUE_REQ;
2137         xpt_action(ccb);
2138         if (frozen) {
2139                 cam_release_devq(ccb->ccb_h.path,
2140                                  /*relsim_flags*/0,
2141                                  /*reduction*/0,
2142                                  /*timeout*/0,
2143                                  /*getcount_only*/0);
2144         }
2145         return (ERESTART);
2146 }
2147
2148 static void
2149 dadone(struct cam_periph *periph, union ccb *done_ccb)
2150 {
2151         struct da_softc *softc;
2152         struct ccb_scsiio *csio;
2153         u_int32_t  priority;
2154
2155         softc = (struct da_softc *)periph->softc;
2156         priority = done_ccb->ccb_h.pinfo.priority;
2157
2158         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("dadone\n"));
2159
2160         csio = &done_ccb->csio;
2161         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
2162         case DA_CCB_BUFFER_IO:
2163         case DA_CCB_DELETE:
2164         {
2165                 struct bio *bp, *bp1;
2166
2167                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2168                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2169                         int error;
2170                         int sf;
2171
2172                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
2173                                 sf = SF_RETRY_UA;
2174                         else
2175                                 sf = 0;
2176
2177                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
2178                         if (error == ERESTART) {
2179                                 /*
2180                                  * A retry was scheuled, so
2181                                  * just return.
2182                                  */
2183                                 return;
2184                         }
2185                         bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
2186                         if (error != 0) {
2187                                 int queued_error;
2188
2189                                 /*
2190                                  * return all queued I/O with EIO, so that
2191                                  * the client can retry these I/Os in the
2192                                  * proper order should it attempt to recover.
2193                                  */
2194                                 queued_error = EIO;
2195
2196                                 if (error == ENXIO
2197                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
2198                                         /*
2199                                          * Catastrophic error.  Mark our pack as
2200                                          * invalid.
2201                                          */
2202                                         /*
2203                                          * XXX See if this is really a media
2204                                          * XXX change first?
2205                                          */
2206                                         xpt_print(periph->path,
2207                                             "Invalidating pack\n");
2208                                         softc->flags |= DA_FLAG_PACK_INVALID;
2209                                         queued_error = ENXIO;
2210                                 }
2211                                 bioq_flush(&softc->bio_queue, NULL,
2212                                            queued_error);
2213                                 if (bp != NULL) {
2214                                         bp->bio_error = error;
2215                                         bp->bio_resid = bp->bio_bcount;
2216                                         bp->bio_flags |= BIO_ERROR;
2217                                 }
2218                         } else if (bp != NULL) {
2219                                 bp->bio_resid = csio->resid;
2220                                 bp->bio_error = 0;
2221                                 if (bp->bio_resid != 0)
2222                                         bp->bio_flags |= BIO_ERROR;
2223                         }
2224                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2225                                 cam_release_devq(done_ccb->ccb_h.path,
2226                                                  /*relsim_flags*/0,
2227                                                  /*reduction*/0,
2228                                                  /*timeout*/0,
2229                                                  /*getcount_only*/0);
2230                 } else if (bp != NULL) {
2231                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2232                                 panic("REQ_CMP with QFRZN");
2233                         bp->bio_resid = csio->resid;
2234                         if (csio->resid > 0)
2235                                 bp->bio_flags |= BIO_ERROR;
2236                         if (softc->error_inject != 0) {
2237                                 bp->bio_error = softc->error_inject;
2238                                 bp->bio_resid = bp->bio_bcount;
2239                                 bp->bio_flags |= BIO_ERROR;
2240                                 softc->error_inject = 0;
2241                         }
2242
2243                 }
2244
2245                 /*
2246                  * Block out any asyncronous callbacks
2247                  * while we touch the pending ccb list.
2248                  */
2249                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
2250                 softc->outstanding_cmds--;
2251                 if (softc->outstanding_cmds == 0)
2252                         softc->flags |= DA_FLAG_WENT_IDLE;
2253
2254                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
2255                         xpt_print(periph->path, "oustanding %d\n",
2256                                   softc->outstanding_cmds);
2257                 }
2258
2259                 if ((csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) ==
2260                     DA_CCB_DELETE) {
2261                         while ((bp1 = bioq_takefirst(&softc->delete_run_queue))
2262                             != NULL) {
2263                                 bp1->bio_resid = bp->bio_resid;
2264                                 bp1->bio_error = bp->bio_error;
2265                                 if (bp->bio_flags & BIO_ERROR)
2266                                         bp1->bio_flags |= BIO_ERROR;
2267                                 biodone(bp1);
2268                         }
2269                         softc->delete_running = 0;
2270                         if (bp != NULL)
2271                                 biodone(bp);
2272                         daschedule(periph);
2273                 } else if (bp != NULL)
2274                         biodone(bp);
2275                 break;
2276         }
2277         case DA_CCB_PROBE:
2278         case DA_CCB_PROBE2:
2279         {
2280                 struct     scsi_read_capacity_data *rdcap;
2281                 struct     scsi_read_capacity_data_long *rcaplong;
2282                 char       announce_buf[80];
2283
2284                 rdcap = NULL;
2285                 rcaplong = NULL;
2286                 if (softc->state == DA_STATE_PROBE)
2287                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
2288                 else
2289                         rcaplong = (struct scsi_read_capacity_data_long *)
2290                                 csio->data_ptr;
2291
2292                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
2293                         struct disk_params *dp;
2294                         uint32_t block_size;
2295                         uint64_t maxsector;
2296                         u_int lbppbe;   /* LB per physical block exponent. */
2297                         u_int lalba;    /* Lowest aligned LBA. */
2298
2299                         if (softc->state == DA_STATE_PROBE) {
2300                                 block_size = scsi_4btoul(rdcap->length);
2301                                 maxsector = scsi_4btoul(rdcap->addr);
2302                                 lbppbe = 0;
2303                                 lalba = 0;
2304
2305                                 /*
2306                                  * According to SBC-2, if the standard 10
2307                                  * byte READ CAPACITY command returns 2^32,
2308                                  * we should issue the 16 byte version of
2309                                  * the command, since the device in question
2310                                  * has more sectors than can be represented
2311                                  * with the short version of the command.
2312                                  */
2313                                 if (maxsector == 0xffffffff) {
2314                                         softc->state = DA_STATE_PROBE2;
2315                                         free(rdcap, M_SCSIDA);
2316                                         xpt_release_ccb(done_ccb);
2317                                         xpt_schedule(periph, priority);
2318                                         return;
2319                                 }
2320                         } else {
2321                                 block_size = scsi_4btoul(rcaplong->length);
2322                                 maxsector = scsi_8btou64(rcaplong->addr);
2323                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2324                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2325                         }
2326
2327                         /*
2328                          * Because GEOM code just will panic us if we
2329                          * give them an 'illegal' value we'll avoid that
2330                          * here.
2331                          */
2332                         if (block_size == 0 && maxsector == 0) {
2333                                 snprintf(announce_buf, sizeof(announce_buf),
2334                                         "0MB (no media?)");
2335                         } else if (block_size >= MAXPHYS || block_size == 0) {
2336                                 xpt_print(periph->path,
2337                                     "unsupportable block size %ju\n",
2338                                     (uintmax_t) block_size);
2339                                 announce_buf[0] = '\0';
2340                                 cam_periph_invalidate(periph);
2341                         } else {
2342                                 /*
2343                                  * We pass rcaplong into dasetgeom(),
2344                                  * because it will only use it if it is
2345                                  * non-NULL.
2346                                  */
2347                                 dasetgeom(periph, block_size, maxsector,
2348                                           rcaplong, sizeof(*rcaplong));
2349                                 if ((lalba & SRC16_LBPME_A)
2350                                  && softc->delete_method == DA_DELETE_NONE)
2351                                         softc->delete_method = DA_DELETE_UNMAP;
2352                                 dp = &softc->params;
2353                                 snprintf(announce_buf, sizeof(announce_buf),
2354                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
2355                                         "%dC)", (uintmax_t)
2356                                         (((uintmax_t)dp->secsize *
2357                                         dp->sectors) / (1024*1024)),
2358                                         (uintmax_t)dp->sectors,
2359                                         dp->secsize, dp->heads,
2360                                         dp->secs_per_track, dp->cylinders);
2361                         }
2362                 } else {
2363                         int     error;
2364
2365                         announce_buf[0] = '\0';
2366
2367                         /*
2368                          * Retry any UNIT ATTENTION type errors.  They
2369                          * are expected at boot.
2370                          */
2371                         error = daerror(done_ccb, CAM_RETRY_SELTO,
2372                                         SF_RETRY_UA|SF_NO_PRINT);
2373                         if (error == ERESTART) {
2374                                 /*
2375                                  * A retry was scheuled, so
2376                                  * just return.
2377                                  */
2378                                 return;
2379                         } else if (error != 0) {
2380                                 int asc, ascq;
2381                                 int sense_key, error_code;
2382                                 int have_sense;
2383                                 cam_status status;
2384                                 struct ccb_getdev cgd;
2385
2386                                 /* Don't wedge this device's queue */
2387                                 status = done_ccb->ccb_h.status;
2388                                 if ((status & CAM_DEV_QFRZN) != 0)
2389                                         cam_release_devq(done_ccb->ccb_h.path,
2390                                                          /*relsim_flags*/0,
2391                                                          /*reduction*/0,
2392                                                          /*timeout*/0,
2393                                                          /*getcount_only*/0);
2394
2395
2396                                 xpt_setup_ccb(&cgd.ccb_h,
2397                                               done_ccb->ccb_h.path,
2398                                               CAM_PRIORITY_NORMAL);
2399                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2400                                 xpt_action((union ccb *)&cgd);
2401
2402                                 if (scsi_extract_sense_ccb(done_ccb,
2403                                     &error_code, &sense_key, &asc, &ascq))
2404                                         have_sense = TRUE;
2405                                 else
2406                                         have_sense = FALSE;
2407
2408                                 /*
2409                                  * If we tried READ CAPACITY(16) and failed,
2410                                  * fallback to READ CAPACITY(10).
2411                                  */
2412                                 if ((softc->state == DA_STATE_PROBE2) &&
2413                                     (softc->flags & DA_FLAG_CAN_RC16) &&
2414                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
2415                                         CAM_REQ_INVALID) ||
2416                                      ((have_sense) &&
2417                                       (error_code == SSD_CURRENT_ERROR) &&
2418                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
2419                                         softc->flags &= ~DA_FLAG_CAN_RC16;
2420                                         softc->state = DA_STATE_PROBE;
2421                                         free(rdcap, M_SCSIDA);
2422                                         xpt_release_ccb(done_ccb);
2423                                         xpt_schedule(periph, priority);
2424                                         return;
2425                                 } else
2426                                 /*
2427                                  * Attach to anything that claims to be a
2428                                  * direct access or optical disk device,
2429                                  * as long as it doesn't return a "Logical
2430                                  * unit not supported" (0x25) error.
2431                                  */
2432                                 if ((have_sense) && (asc != 0x25)
2433                                  && (error_code == SSD_CURRENT_ERROR)) {
2434                                         const char *sense_key_desc;
2435                                         const char *asc_desc;
2436
2437                                         scsi_sense_desc(sense_key, asc, ascq,
2438                                                         &cgd.inq_data,
2439                                                         &sense_key_desc,
2440                                                         &asc_desc);
2441                                         snprintf(announce_buf,
2442                                             sizeof(announce_buf),
2443                                                 "Attempt to query device "
2444                                                 "size failed: %s, %s",
2445                                                 sense_key_desc,
2446                                                 asc_desc);
2447                                 } else {
2448                                         if (have_sense)
2449                                                 scsi_sense_print(
2450                                                         &done_ccb->csio);
2451                                         else {
2452                                                 xpt_print(periph->path,
2453                                                     "got CAM status %#x\n",
2454                                                     done_ccb->ccb_h.status);
2455                                         }
2456
2457                                         xpt_print(periph->path, "fatal error, "
2458                                             "failed to attach to device\n");
2459
2460                                         /*
2461                                          * Free up resources.
2462                                          */
2463                                         cam_periph_invalidate(periph);
2464                                 }
2465                         }
2466                 }
2467                 free(csio->data_ptr, M_SCSIDA);
2468                 if (announce_buf[0] != '\0' && ((softc->flags & DA_FLAG_PROBED) == 0)) {
2469                         /*
2470                          * Create our sysctl variables, now that we know
2471                          * we have successfully attached.
2472                          */
2473                         /* increase the refcount */
2474                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2475                                 taskqueue_enqueue(taskqueue_thread,
2476                                                   &softc->sysctl_task);
2477                                 xpt_announce_periph(periph, announce_buf);
2478                         } else {
2479                                 xpt_print(periph->path, "fatal error, "
2480                                     "could not acquire reference count\n");
2481                         }
2482                 }
2483                 /*
2484                  * Since our peripheral may be invalidated by an error
2485                  * above or an external event, we must release our CCB
2486                  * before releasing the probe lock on the peripheral.
2487                  * The peripheral will only go away once the last lock
2488                  * is removed, and we need it around for the CCB release
2489                  * operation.
2490                  */
2491                 xpt_release_ccb(done_ccb);
2492                 softc->state = DA_STATE_NORMAL;
2493                 wakeup(&softc->disk->d_mediasize);
2494                 if ((softc->flags & DA_FLAG_PROBED) == 0) {
2495                         softc->flags |= DA_FLAG_PROBED;
2496                         cam_periph_unhold(periph);
2497                 } else
2498                         cam_periph_release_locked(periph);
2499                 return;
2500         }
2501         case DA_CCB_WAITING:
2502         {
2503                 /* Caller will release the CCB */
2504                 wakeup(&done_ccb->ccb_h.cbfcnp);
2505                 return;
2506         }
2507         case DA_CCB_DUMP:
2508                 /* No-op.  We're polling */
2509                 return;
2510         case DA_CCB_TUR:
2511         {
2512                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2513
2514                         if (daerror(done_ccb, CAM_RETRY_SELTO,
2515                             SF_RETRY_UA | SF_NO_RECOVERY | SF_NO_PRINT) ==
2516                             ERESTART)
2517                                 return;
2518                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2519                                 cam_release_devq(done_ccb->ccb_h.path,
2520                                                  /*relsim_flags*/0,
2521                                                  /*reduction*/0,
2522                                                  /*timeout*/0,
2523                                                  /*getcount_only*/0);
2524                 }
2525                 xpt_release_ccb(done_ccb);
2526                 cam_periph_release_locked(periph);
2527                 return;
2528         }
2529         default:
2530                 break;
2531         }
2532         xpt_release_ccb(done_ccb);
2533 }
2534
2535 static void
2536 dareprobe(struct cam_periph *periph)
2537 {
2538         struct da_softc   *softc;
2539         cam_status status;
2540
2541         softc = (struct da_softc *)periph->softc;
2542
2543         /* Probe in progress; don't interfere. */
2544         if ((softc->flags & DA_FLAG_PROBED) == 0)
2545                 return;
2546
2547         status = cam_periph_acquire(periph);
2548         KASSERT(status == CAM_REQ_CMP,
2549             ("dareprobe: cam_periph_acquire failed"));
2550
2551         if (softc->flags & DA_FLAG_CAN_RC16)
2552                 softc->state = DA_STATE_PROBE2;
2553         else
2554                 softc->state = DA_STATE_PROBE;
2555
2556         xpt_schedule(periph, CAM_PRIORITY_DEV);
2557 }
2558
2559 static int
2560 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2561 {
2562         struct da_softc   *softc;
2563         struct cam_periph *periph;
2564         int error, error_code, sense_key, asc, ascq;
2565
2566         periph = xpt_path_periph(ccb->ccb_h.path);
2567         softc = (struct da_softc *)periph->softc;
2568
2569         /*
2570          * Automatically detect devices that do not support
2571          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
2572          */
2573         error = 0;
2574         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2575                 error = cmd6workaround(ccb);
2576         } else if (scsi_extract_sense_ccb(ccb,
2577             &error_code, &sense_key, &asc, &ascq)) {
2578                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2579                         error = cmd6workaround(ccb);
2580                 /*
2581                  * If the target replied with CAPACITY DATA HAS CHANGED UA,
2582                  * query the capacity and notify upper layers.
2583                  */
2584                 else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
2585                     asc == 0x2A && ascq == 0x09) {
2586                         xpt_print(periph->path, "capacity data has changed\n");
2587                         dareprobe(periph);
2588                         sense_flags |= SF_NO_PRINT;
2589                 } else if (sense_key == SSD_KEY_UNIT_ATTENTION &&
2590                     asc == 0x28 && ascq == 0x00)
2591                         disk_media_changed(softc->disk, M_NOWAIT);
2592                 else if (sense_key == SSD_KEY_NOT_READY &&
2593                     asc == 0x3a && (softc->flags & DA_FLAG_SAW_MEDIA)) {
2594                         softc->flags &= ~DA_FLAG_SAW_MEDIA;
2595                         disk_media_gone(softc->disk, M_NOWAIT);
2596                 }
2597         }
2598         if (error == ERESTART)
2599                 return (ERESTART);
2600
2601         /*
2602          * XXX
2603          * Until we have a better way of doing pack validation,
2604          * don't treat UAs as errors.
2605          */
2606         sense_flags |= SF_RETRY_UA;
2607         return(cam_periph_error(ccb, cam_flags, sense_flags,
2608                                 &softc->saved_ccb));
2609 }
2610
2611 static void
2612 damediapoll(void *arg)
2613 {
2614         struct cam_periph *periph = arg;
2615         struct da_softc *softc = periph->softc;
2616
2617         if (softc->state == DA_STATE_NORMAL && !softc->tur) {
2618                 if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2619                         softc->tur = 1;
2620                         daschedule(periph);
2621                 }
2622         }
2623         /* Queue us up again */
2624         if (da_poll_period != 0)
2625                 callout_schedule(&softc->mediapoll_c, da_poll_period * hz);
2626 }
2627
2628 static void
2629 daprevent(struct cam_periph *periph, int action)
2630 {
2631         struct  da_softc *softc;
2632         union   ccb *ccb;
2633         int     error;
2634
2635         softc = (struct da_softc *)periph->softc;
2636
2637         if (((action == PR_ALLOW)
2638           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2639          || ((action == PR_PREVENT)
2640           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2641                 return;
2642         }
2643
2644         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2645
2646         scsi_prevent(&ccb->csio,
2647                      /*retries*/1,
2648                      /*cbcfp*/dadone,
2649                      MSG_SIMPLE_Q_TAG,
2650                      action,
2651                      SSD_FULL_SIZE,
2652                      5000);
2653
2654         error = cam_periph_runccb(ccb, daerror, CAM_RETRY_SELTO,
2655             SF_RETRY_UA | SF_QUIET_IR, softc->disk->d_devstat);
2656
2657         if (error == 0) {
2658                 if (action == PR_ALLOW)
2659                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
2660                 else
2661                         softc->flags |= DA_FLAG_PACK_LOCKED;
2662         }
2663
2664         xpt_release_ccb(ccb);
2665 }
2666
2667 static void
2668 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
2669           struct scsi_read_capacity_data_long *rcaplong, size_t rcap_len)
2670 {
2671         struct ccb_calc_geometry ccg;
2672         struct da_softc *softc;
2673         struct disk_params *dp;
2674         u_int lbppbe, lalba;
2675
2676         softc = (struct da_softc *)periph->softc;
2677
2678         dp = &softc->params;
2679         dp->secsize = block_len;
2680         dp->sectors = maxsector + 1;
2681         if (rcaplong != NULL) {
2682                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2683                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2684                 lalba &= SRC16_LALBA_A;
2685         } else {
2686                 lbppbe = 0;
2687                 lalba = 0;
2688         }
2689
2690         if (lbppbe > 0) {
2691                 dp->stripesize = block_len << lbppbe;
2692                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
2693                     dp->stripesize;
2694         } else if (softc->quirks & DA_Q_4K) {
2695                 dp->stripesize = 4096;
2696                 dp->stripeoffset = 0;
2697         } else {
2698                 dp->stripesize = 0;
2699                 dp->stripeoffset = 0;
2700         }
2701         /*
2702          * Have the controller provide us with a geometry
2703          * for this disk.  The only time the geometry
2704          * matters is when we boot and the controller
2705          * is the only one knowledgeable enough to come
2706          * up with something that will make this a bootable
2707          * device.
2708          */
2709         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2710         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2711         ccg.block_size = dp->secsize;
2712         ccg.volume_size = dp->sectors;
2713         ccg.heads = 0;
2714         ccg.secs_per_track = 0;
2715         ccg.cylinders = 0;
2716         xpt_action((union ccb*)&ccg);
2717         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2718                 /*
2719                  * We don't know what went wrong here- but just pick
2720                  * a geometry so we don't have nasty things like divide
2721                  * by zero.
2722                  */
2723                 dp->heads = 255;
2724                 dp->secs_per_track = 255;
2725                 dp->cylinders = dp->sectors / (255 * 255);
2726                 if (dp->cylinders == 0) {
2727                         dp->cylinders = 1;
2728                 }
2729         } else {
2730                 dp->heads = ccg.heads;
2731                 dp->secs_per_track = ccg.secs_per_track;
2732                 dp->cylinders = ccg.cylinders;
2733         }
2734
2735         /*
2736          * If the user supplied a read capacity buffer, and if it is
2737          * different than the previous buffer, update the data in the EDT.
2738          * If it's the same, we don't bother.  This avoids sending an
2739          * update every time someone opens this device.
2740          */
2741         if ((rcaplong != NULL)
2742          && (bcmp(rcaplong, &softc->rcaplong,
2743                   min(sizeof(softc->rcaplong), rcap_len)) != 0)) {
2744                 struct ccb_dev_advinfo cdai;
2745
2746                 xpt_setup_ccb(&cdai.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2747                 cdai.ccb_h.func_code = XPT_DEV_ADVINFO;
2748                 cdai.buftype = CDAI_TYPE_RCAPLONG;
2749                 cdai.flags |= CDAI_FLAG_STORE;
2750                 cdai.bufsiz = rcap_len;
2751                 cdai.buf = (uint8_t *)rcaplong;
2752                 xpt_action((union ccb *)&cdai);
2753                 if ((cdai.ccb_h.status & CAM_DEV_QFRZN) != 0)
2754                         cam_release_devq(cdai.ccb_h.path, 0, 0, 0, FALSE);
2755                 if (cdai.ccb_h.status != CAM_REQ_CMP) {
2756                         xpt_print(periph->path, "%s: failed to set read "
2757                                   "capacity advinfo\n", __func__);
2758                         /* Use cam_error_print() to decode the status */
2759                         cam_error_print((union ccb *)&cdai, CAM_ESF_CAM_STATUS,
2760                                         CAM_EPF_ALL);
2761                 } else {
2762                         bcopy(rcaplong, &softc->rcaplong,
2763                               min(sizeof(softc->rcaplong), rcap_len));
2764                 }
2765         }
2766
2767         softc->disk->d_sectorsize = softc->params.secsize;
2768         softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
2769         softc->disk->d_stripesize = softc->params.stripesize;
2770         softc->disk->d_stripeoffset = softc->params.stripeoffset;
2771         /* XXX: these are not actually "firmware" values, so they may be wrong */
2772         softc->disk->d_fwsectors = softc->params.secs_per_track;
2773         softc->disk->d_fwheads = softc->params.heads;
2774         softc->disk->d_devstat->block_size = softc->params.secsize;
2775         softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
2776         if (softc->delete_method > DA_DELETE_DISABLE)
2777                 softc->disk->d_flags |= DISKFLAG_CANDELETE;
2778         else
2779                 softc->disk->d_flags &= ~DISKFLAG_CANDELETE;
2780 }
2781
2782 static void
2783 dasendorderedtag(void *arg)
2784 {
2785         struct da_softc *softc = arg;
2786
2787         if (da_send_ordered) {
2788                 if ((softc->ordered_tag_count == 0)
2789                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2790                         softc->flags |= DA_FLAG_NEED_OTAG;
2791                 }
2792                 if (softc->outstanding_cmds > 0)
2793                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2794
2795                 softc->ordered_tag_count = 0;
2796         }
2797         /* Queue us up again */
2798         callout_reset(&softc->sendordered_c,
2799             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2800             dasendorderedtag, softc);
2801 }
2802
2803 /*
2804  * Step through all DA peripheral drivers, and if the device is still open,
2805  * sync the disk cache to physical media.
2806  */
2807 static void
2808 dashutdown(void * arg, int howto)
2809 {
2810         struct cam_periph *periph;
2811         struct da_softc *softc;
2812         int error;
2813
2814         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2815                 union ccb ccb;
2816
2817                 cam_periph_lock(periph);
2818                 softc = (struct da_softc *)periph->softc;
2819
2820                 /*
2821                  * We only sync the cache if the drive is still open, and
2822                  * if the drive is capable of it..
2823                  */
2824                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2825                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2826                         cam_periph_unlock(periph);
2827                         continue;
2828                 }
2829
2830                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2831
2832                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2833                 scsi_synchronize_cache(&ccb.csio,
2834                                        /*retries*/0,
2835                                        /*cbfcnp*/dadone,
2836                                        MSG_SIMPLE_Q_TAG,
2837                                        /*begin_lba*/0, /* whole disk */
2838                                        /*lb_count*/0,
2839                                        SSD_FULL_SIZE,
2840                                        60 * 60 * 1000);
2841
2842                 xpt_polled_action(&ccb);
2843
2844                 error = cam_periph_error(&ccb,
2845                     0, SF_NO_RECOVERY | SF_NO_RETRY | SF_QUIET_IR, NULL);
2846                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2847                         cam_release_devq(ccb.ccb_h.path, /*relsim_flags*/0,
2848                             /*reduction*/0, /*timeout*/0, /*getcount_only*/0);
2849                 if (error != 0)
2850                         xpt_print(periph->path, "Synchronize cache failed\n");
2851                 cam_periph_unlock(periph);
2852         }
2853 }
2854
2855 #else /* !_KERNEL */
2856
2857 /*
2858  * XXX This is only left out of the kernel build to silence warnings.  If,
2859  * for some reason this function is used in the kernel, the ifdefs should
2860  * be moved so it is included both in the kernel and userland.
2861  */
2862 void
2863 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2864                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2865                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2866                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2867                  u_int32_t timeout)
2868 {
2869         struct scsi_format_unit *scsi_cmd;
2870
2871         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2872         scsi_cmd->opcode = FORMAT_UNIT;
2873         scsi_cmd->byte2 = byte2;
2874         scsi_ulto2b(ileave, scsi_cmd->interleave);
2875
2876         cam_fill_csio(csio,
2877                       retries,
2878                       cbfcnp,
2879                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2880                       tag_action,
2881                       data_ptr,
2882                       dxfer_len,
2883                       sense_len,
2884                       sizeof(*scsi_cmd),
2885                       timeout);
2886 }
2887
2888 #endif /* _KERNEL */