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_TAGGED_QUEUING  = 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_CAN_LBPME       = 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_TYPE_MASK        = 0x0F,
 105         DA_CCB_RETRY_UA         = 0x10
 106 } da_ccb_state;
 107
 108 /* Offsets into our private area for storing information */
 109 #define ccb_state       ppriv_field0
 110 #define ccb_bp          ppriv_ptr1
 111
 112 struct disk_params {
 113         u_int8_t  heads;
 114         u_int32_t cylinders;
 115         u_int8_t  secs_per_track;
 116         u_int32_t secsize;      /* Number of bytes/sector */
 117         u_int64_t sectors;      /* total number sectors */
 118         u_int     stripesize;
 119         u_int     stripeoffset;
 120 };
 121
 122 struct da_softc {
 123         struct   bio_queue_head bio_queue;
 124         SLIST_ENTRY(da_softc) links;
 125         LIST_HEAD(, ccb_hdr) pending_ccbs;
 126         da_state state;
 127         da_flags flags;
 128         da_quirks quirks;
 129         int      minimum_cmd_size;
 130         int      error_inject;
 131         int      ordered_tag_count;
 132         int      outstanding_cmds;
 133         struct   disk_params params;
 134         struct   disk *disk;
 135         union    ccb saved_ccb;
 136         struct task             sysctl_task;
 137         struct sysctl_ctx_list  sysctl_ctx;
 138         struct sysctl_oid       *sysctl_tree;
 139         struct callout          sendordered_c;
 140         uint64_t wwpn;
 141 };
 142
 143 struct da_quirk_entry {
 144         struct scsi_inquiry_pattern inq_pat;
 145         da_quirks quirks;
 146 };
 147
 148 static const char quantum[] = "QUANTUM";
 149 static const char microp[] = "MICROP";
 150
 151 static struct da_quirk_entry da_quirk_table[] =
 152 {
 153         /* SPI, FC devices */
 154         {
 155                 /*
 156                  * Fujitsu M2513A MO drives.
 157                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 158                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 159                  * Reported by: W.Scholten <whs@xs4all.nl>
 160                  */
 161                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 162                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 163         },
 164         {
 165                 /* See above. */
 166                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 167                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 168         },
 169         {
 170                 /*
 171                  * This particular Fujitsu drive doesn't like the
 172                  * synchronize cache command.
 173                  * Reported by: Tom Jackson <toj@gorilla.net>
 174                  */
 175                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 176                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 177         },
 178         {
 179                 /*
 180                  * This drive doesn't like the synchronize cache command
 181                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 182                  * in NetBSD PR kern/6027, August 24, 1998.
 183                  */
 184                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 185                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 186         },
 187         {
 188                 /*
 189                  * This drive doesn't like the synchronize cache command
 190                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 191                  * (PR 8882).
 192                  */
 193                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 194                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 195         },
 196         {
 197                 /*
 198                  * Doesn't like the synchronize cache command.
 199                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 200                  */
 201                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 202                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 203         },
 204         {
 205                 /*
 206                  * Doesn't like the synchronize cache command.
 207                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 208                  */
 209                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 210                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 211         },
 212         {
 213                 /*
 214                  * Doesn't like the synchronize cache command.
 215                  */
 216                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 217                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 218         },
 219         {
 220                 /*
 221                  * Doesn't like the synchronize cache command.
 222                  * Reported by: walter@pelissero.de
 223                  */
 224                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 225                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 226         },
 227         {
 228                 /*
 229                  * Doesn't work correctly with 6 byte reads/writes.
 230                  * Returns illegal request, and points to byte 9 of the
 231                  * 6-byte CDB.
 232                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 233                  */
 234                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 235                 /*quirks*/ DA_Q_NO_6_BYTE
 236         },
 237         {
 238                 /* See above. */
 239                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 240                 /*quirks*/ DA_Q_NO_6_BYTE
 241         },
 242         {
 243                 /*
 244                  * Doesn't like the synchronize cache command.
 245                  * Reported by: walter@pelissero.de
 246                  */
 247                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 248                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 249         },
 250         {
 251                 /*
 252                  * The CISS RAID controllers do not support SYNC_CACHE
 253                  */
 254                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 255                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 256         },
 257         /* USB mass storage devices supported by umass(4) */
 258         {
 259                 /*
 260                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 261                  * PR: kern/51675
 262                  */
 263                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 264                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 265         },
 266         {
 267                 /*
 268                  * Power Quotient Int. (PQI) USB flash key
 269                  * PR: kern/53067
 270                  */
 271                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 272                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 273         },
 274         {
 275                 /*
 276                  * Creative Nomad MUVO mp3 player (USB)
 277                  * PR: kern/53094
 278                  */
 279                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 280                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 281         },
 282         {
 283                 /*
 284                  * Jungsoft NEXDISK USB flash key
 285                  * PR: kern/54737
 286                  */
 287                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 288                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 289         },
 290         {
 291                 /*
 292                  * FreeDik USB Mini Data Drive
 293                  * PR: kern/54786
 294                  */
 295                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 296                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 297         },
 298         {
 299                 /*
 300                  * Sigmatel USB Flash MP3 Player
 301                  * PR: kern/57046
 302                  */
 303                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 304                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 305         },
 306         {
 307                 /*
 308                  * Neuros USB Digital Audio Computer
 309                  * PR: kern/63645
 310                  */
 311                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 312                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 313         },
 314         {
 315                 /*
 316                  * SEAGRAND NP-900 MP3 Player
 317                  * PR: kern/64563
 318                  */
 319                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 320                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 321         },
 322         {
 323                 /*
 324                  * iRiver iFP MP3 player (with UMS Firmware)
 325                  * PR: kern/54881, i386/63941, kern/66124
 326                  */
 327                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 328                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 329         },
 330         {
 331                 /*
 332                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 333                  * PR: kern/70158
 334                  */
 335                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 336                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 337         },
 338         {
 339                 /*
 340                  * ZICPlay USB MP3 Player with FM
 341                  * PR: kern/75057
 342                  */
 343                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 344                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 345         },
 346         {
 347                 /*
 348                  * TEAC USB floppy mechanisms
 349                  */
 350                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 351                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 352         },
 353         {
 354                 /*
 355                  * Kingston DataTraveler II+ USB Pen-Drive.
 356                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 357                  */
 358                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 359                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 360         },
 361         {
 362                 /*
 363                  * Motorola E398 Mobile Phone (TransFlash memory card).
 364                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 365                  * PR: usb/89889
 366                  */
 367                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 368                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 369         },
 370         {
 371                 /*
 372                  * Qware BeatZkey! Pro
 373                  * PR: usb/79164
 374                  */
 375                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 376                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 377         },
 378         {
 379                 /*
 380                  * Time DPA20B 1GB MP3 Player
 381                  * PR: usb/81846
 382                  */
 383                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 384                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 385         },
 386         {
 387                 /*
 388                  * Samsung USB key 128Mb
 389                  * PR: usb/90081
 390                  */
 391                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 392                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 393         },
 394         {
 395                 /*
 396                  * Kingston DataTraveler 2.0 USB Flash memory.
 397                  * PR: usb/89196
 398                  */
 399                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 400                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 401         },
 402         {
 403                 /*
 404                  * Creative MUVO Slim mp3 player (USB)
 405                  * PR: usb/86131
 406                  */
 407                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 408                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 409                 },
 410         {
 411                 /*
 412                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 413                  * PR: usb/80487
 414                  */
 415                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 416                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 417         },
 418         {
 419                 /*
 420                  * SanDisk Micro Cruzer 128MB
 421                  * PR: usb/75970
 422                  */
 423                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 424                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 425         },
 426         {
 427                 /*
 428                  * TOSHIBA TransMemory USB sticks
 429                  * PR: kern/94660
 430                  */
 431                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 432                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 433         },
 434         {
 435                 /*
 436                  * PNY USB Flash keys
 437                  * PR: usb/75578, usb/72344, usb/65436
 438                  */
 439                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 440                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 441         },
 442         {
 443                 /*
 444                  * Genesys 6-in-1 Card Reader
 445                  * PR: usb/94647
 446                  */
 447                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 448                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 449         },
 450         {
 451                 /*
 452                  * Rekam Digital CAMERA
 453                  * PR: usb/98713
 454                  */
 455                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 456                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 457         },
 458         {
 459                 /*
 460                  * iRiver H10 MP3 player
 461                  * PR: usb/102547
 462                  */
 463                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 464                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 465         },
 466         {
 467                 /*
 468                  * iRiver U10 MP3 player
 469                  * PR: usb/92306
 470                  */
 471                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 472                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 473         },
 474         {
 475                 /*
 476                  * X-Micro Flash Disk
 477                  * PR: usb/96901
 478                  */
 479                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 480                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 481         },
 482         {
 483                 /*
 484                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 485                  * PR: usb/96546
 486                  */
 487                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 488                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 489         },
 490         {
 491                 /*
 492                  * Denver MP3 player
 493                  * PR: usb/107101
 494                  */
 495                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 496                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 497         },
 498         {
 499                 /*
 500                  * Philips USB Key Audio KEY013
 501                  * PR: usb/68412
 502                  */
 503                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 504                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 505         },
 506         {
 507                 /*
 508                  * JNC MP3 Player
 509                  * PR: usb/94439
 510                  */
 511                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 512                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 513         },
 514         {
 515                 /*
 516                  * SAMSUNG MP0402H
 517                  * PR: usb/108427
 518                  */
 519                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 520                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 521         },
 522         {
 523                 /*
 524                  * I/O Magic USB flash - Giga Bank
 525                  * PR: usb/108810
 526                  */
 527                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 528                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 529         },
 530         {
 531                 /*
 532                  * JoyFly 128mb USB Flash Drive
 533                  * PR: 96133
 534                  */
 535                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 536                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 537         },
 538         {
 539                 /*
 540                  * ChipsBnk usb stick
 541                  * PR: 103702
 542                  */
 543                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 544                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 545         },
 546         {
 547                 /*
 548                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 549                  * PR: 129858
 550                  */
 551                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 552                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 553         },
 554         {
 555                 /*
 556                  * Samsung YP-U3 mp3-player
 557                  * PR: 125398
 558                  */
 559                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 560                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 561         },
 562         {
 563                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 564                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 565         },
 566         {
 567                 /*
 568                  * Sony Cyber-Shot DSC cameras
 569                  * PR: usb/137035
 570                  */
 571                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 572                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 573         },
 574         /* ATA/SATA devices over SAS/USB/... */
 575         {
 576                 /* Hitachi Advanced Format (4k) drives */
 577                 { T_DIRECT, SIP_MEDIA_FIXED, "Hitachi", "H??????????E3*", "*" },
 578                 /*quirks*/DA_Q_4K
 579         },
 580         {
 581                 /* Samsung Advanced Format (4k) drives */
 582                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD155UI*", "*" },
 583                 /*quirks*/DA_Q_4K
 584         },
 585         {
 586                 /* Samsung Advanced Format (4k) drives */
 587                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD155UI*", "*" },
 588                 /*quirks*/DA_Q_4K
 589         },
 590         {
 591                 /* Samsung Advanced Format (4k) drives */
 592                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "SAMSUNG HD204UI*", "*" },
 593                 /*quirks*/DA_Q_4K
 594         },
 595         {
 596                 /* Samsung Advanced Format (4k) drives */
 597                 { T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "HD204UI*", "*" },
 598                 /*quirks*/DA_Q_4K
 599         },
 600         {
 601                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 602                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DL*", "*" },
 603                 /*quirks*/DA_Q_4K
 604         },
 605         {
 606                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 607                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DL", "*", "*" },
 608                 /*quirks*/DA_Q_4K
 609         },
 610         {
 611                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 612                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???DM*", "*" },
 613                 /*quirks*/DA_Q_4K
 614         },
 615         {
 616                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 617                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???DM*", "*", "*" },
 618                 /*quirks*/DA_Q_4K
 619         },
 620         {
 621                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 622                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST????DM*", "*" },
 623                 /*quirks*/DA_Q_4K
 624         },
 625         {
 626                 /* Seagate Barracuda Green Advanced Format (4k) drives */
 627                 { T_DIRECT, SIP_MEDIA_FIXED, "ST????DM", "*", "*" },
 628                 /*quirks*/DA_Q_4K
 629         },
 630         {
 631                 /* Seagate Momentus Advanced Format (4k) drives */
 632                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500423AS*", "*" },
 633                 /*quirks*/DA_Q_4K
 634         },
 635         {
 636                 /* Seagate Momentus Advanced Format (4k) drives */
 637                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "3AS*", "*" },
 638                 /*quirks*/DA_Q_4K
 639         },
 640         {
 641                 /* Seagate Momentus Advanced Format (4k) drives */
 642                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9500424AS*", "*" },
 643                 /*quirks*/DA_Q_4K
 644         },
 645         {
 646                 /* Seagate Momentus Advanced Format (4k) drives */
 647                 { T_DIRECT, SIP_MEDIA_FIXED, "ST950042", "4AS*", "*" },
 648                 /*quirks*/DA_Q_4K
 649         },
 650         {
 651                 /* Seagate Momentus Advanced Format (4k) drives */
 652                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640423AS*", "*" },
 653                 /*quirks*/DA_Q_4K
 654         },
 655         {
 656                 /* Seagate Momentus Advanced Format (4k) drives */
 657                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "3AS*", "*" },
 658                 /*quirks*/DA_Q_4K
 659         },
 660         {
 661                 /* Seagate Momentus Advanced Format (4k) drives */
 662                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9640424AS*", "*" },
 663                 /*quirks*/DA_Q_4K
 664         },
 665         {
 666                 /* Seagate Momentus Advanced Format (4k) drives */
 667                 { T_DIRECT, SIP_MEDIA_FIXED, "ST964042", "4AS*", "*" },
 668                 /*quirks*/DA_Q_4K
 669         },
 670         {
 671                 /* Seagate Momentus Advanced Format (4k) drives */
 672                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750420AS*", "*" },
 673                 /*quirks*/DA_Q_4K
 674         },
 675         {
 676                 /* Seagate Momentus Advanced Format (4k) drives */
 677                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "0AS*", "*" },
 678                 /*quirks*/DA_Q_4K
 679         },
 680         {
 681                 /* Seagate Momentus Advanced Format (4k) drives */
 682                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750422AS*", "*" },
 683                 /*quirks*/DA_Q_4K
 684         },
 685         {
 686                 /* Seagate Momentus Advanced Format (4k) drives */
 687                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "2AS*", "*" },
 688                 /*quirks*/DA_Q_4K
 689         },
 690         {
 691                 /* Seagate Momentus Advanced Format (4k) drives */
 692                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST9750423AS*", "*" },
 693                 /*quirks*/DA_Q_4K
 694         },
 695         {
 696                 /* Seagate Momentus Advanced Format (4k) drives */
 697                 { T_DIRECT, SIP_MEDIA_FIXED, "ST975042", "3AS*", "*" },
 698                 /*quirks*/DA_Q_4K
 699         },
 700         {
 701                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 702                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "ST???LT*", "*" },
 703                 /*quirks*/DA_Q_4K
 704         },
 705         {
 706                 /* Seagate Momentus Thin Advanced Format (4k) drives */
 707                 { T_DIRECT, SIP_MEDIA_FIXED, "ST???LT*", "*", "*" },
 708                 /*quirks*/DA_Q_4K
 709         },
 710         {
 711                 /* WDC Caviar Green Advanced Format (4k) drives */
 712                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RS*", "*" },
 713                 /*quirks*/DA_Q_4K
 714         },
 715         {
 716                 /* WDC Caviar Green Advanced Format (4k) drives */
 717                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RS*", "*" },
 718                 /*quirks*/DA_Q_4K
 719         },
 720         {
 721                 /* WDC Caviar Green Advanced Format (4k) drives */
 722                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD????RX*", "*" },
 723                 /*quirks*/DA_Q_4K
 724         },
 725         {
 726                 /* WDC Caviar Green Advanced Format (4k) drives */
 727                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "??RX*", "*" },
 728                 /*quirks*/DA_Q_4K
 729         },
 730         {
 731                 /* WDC Caviar Green Advanced Format (4k) drives */
 732                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RS*", "*" },
 733                 /*quirks*/DA_Q_4K
 734         },
 735         {
 736                 /* WDC Caviar Green Advanced Format (4k) drives */
 737                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RS*", "*" },
 738                 /*quirks*/DA_Q_4K
 739         },
 740         {
 741                 /* WDC Caviar Green Advanced Format (4k) drives */
 742                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD??????RX*", "*" },
 743                 /*quirks*/DA_Q_4K
 744         },
 745         {
 746                 /* WDC Caviar Green Advanced Format (4k) drives */
 747                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "????RX*", "*" },
 748                 /*quirks*/DA_Q_4K
 749         },
 750         {
 751                 /* WDC Scorpio Black Advanced Format (4k) drives */
 752                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PKT*", "*" },
 753                 /*quirks*/DA_Q_4K
 754         },
 755         {
 756                 /* WDC Scorpio Black Advanced Format (4k) drives */
 757                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PKT*", "*" },
 758                 /*quirks*/DA_Q_4K
 759         },
 760         {
 761                 /* WDC Scorpio Black Advanced Format (4k) drives */
 762                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PKT*", "*" },
 763                 /*quirks*/DA_Q_4K
 764         },
 765         {
 766                 /* WDC Scorpio Black Advanced Format (4k) drives */
 767                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PKT*", "*" },
 768                 /*quirks*/DA_Q_4K
 769         },
 770         {
 771                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 772                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD???PVT*", "*" },
 773                 /*quirks*/DA_Q_4K
 774         },
 775         {
 776                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 777                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "?PVT*", "*" },
 778                 /*quirks*/DA_Q_4K
 779         },
 780         {
 781                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 782                 { T_DIRECT, SIP_MEDIA_FIXED, "ATA", "WDC WD?????PVT*", "*" },
 783                 /*quirks*/DA_Q_4K
 784         },
 785         {
 786                 /* WDC Scorpio Blue Advanced Format (4k) drives */
 787                 { T_DIRECT, SIP_MEDIA_FIXED, "WDC WD??", "???PVT*", "*" },
 788                 /*quirks*/DA_Q_4K
 789         },
 790 };
 791
 792 static  disk_strategy_t dastrategy;
 793 static  dumper_t        dadump;
 794 static  periph_init_t   dainit;
 795 static  void            daasync(void *callback_arg, u_int32_t code,
 796                                 struct cam_path *path, void *arg);
 797 static  void            dasysctlinit(void *context, int pending);
 798 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 799 static  periph_ctor_t   daregister;
 800 static  periph_dtor_t   dacleanup;
 801 static  periph_start_t  dastart;
 802 static  periph_oninv_t  daoninvalidate;
 803 static  void            dadone(struct cam_periph *periph,
 804                                union ccb *done_ccb);
 805 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 806                                 u_int32_t sense_flags);
 807 static void             daprevent(struct cam_periph *periph, int action);
 808 static int              dagetcapacity(struct cam_periph *periph);
 809 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 810                                   uint64_t maxsector, u_int lbppbe, u_int lalba);
 811 static timeout_t        dasendorderedtag;
 812 static void             dashutdown(void *arg, int howto);
 813
 814 #ifndef DA_DEFAULT_TIMEOUT
 815 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 816 #endif
 817
 818 #ifndef DA_DEFAULT_RETRY
 819 #define DA_DEFAULT_RETRY        4
 820 #endif
 821
 822 #ifndef DA_DEFAULT_SEND_ORDERED
 823 #define DA_DEFAULT_SEND_ORDERED 1
 824 #endif
 825
 826
 827 static int da_retry_count = DA_DEFAULT_RETRY;
 828 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 829 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 830
 831 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 832             "CAM Direct Access Disk driver");
 833 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 834            &da_retry_count, 0, "Normal I/O retry count");
 835 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 836 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 837            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 838 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 839 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
 840            &da_send_ordered, 0, "Send Ordered Tags");
 841 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
 842
 843 /*
 844  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 845  * to the default timeout, we check to see whether an ordered
 846  * tagged transaction is appropriate to prevent simple tag
 847  * starvation.  Since we'd like to ensure that there is at least
 848  * 1/2 of the timeout length left for a starved transaction to
 849  * complete after we've sent an ordered tag, we must poll at least
 850  * four times in every timeout period.  This takes care of the worst
 851  * case where a starved transaction starts during an interval that
 852  * meets the requirement "don't send an ordered tag" test so it takes
 853  * us two intervals to determine that a tag must be sent.
 854  */
 855 #ifndef DA_ORDEREDTAG_INTERVAL
 856 #define DA_ORDEREDTAG_INTERVAL 4
 857 #endif
 858
 859 static struct periph_driver dadriver =
 860 {
 861         dainit, "da",
 862         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 863 };
 864
 865 PERIPHDRIVER_DECLARE(da, dadriver);
 866
 867 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 868
 869 static int
 870 daopen(struct disk *dp)
 871 {
 872         struct cam_periph *periph;
 873         struct da_softc *softc;
 874         int unit;
 875         int error;
 876
 877         periph = (struct cam_periph *)dp->d_drv1;
 878         if (periph == NULL) {
 879                 return (ENXIO);
 880         }
 881
 882         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 883                 return (ENXIO);
 884         }
 885
 886         cam_periph_lock(periph);
 887         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 888                 cam_periph_unlock(periph);
 889                 cam_periph_release(periph);
 890                 return (error);
 891         }
 892
 893         unit = periph->unit_number;
 894         softc = (struct da_softc *)periph->softc;
 895         softc->flags |= DA_FLAG_OPEN;
 896
 897         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
 898             ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
 899              unit));
 900
 901         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 902                 /* Invalidate our pack information. */
 903                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 904         }
 905
 906         error = dagetcapacity(periph);
 907
 908         if (error == 0) {
 909
 910                 softc->disk->d_sectorsize = softc->params.secsize;
 911                 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
 912                 softc->disk->d_stripesize = softc->params.stripesize;
 913                 softc->disk->d_stripeoffset = softc->params.stripeoffset;
 914                 /* XXX: these are not actually "firmware" values, so they may be wrong */
 915                 softc->disk->d_fwsectors = softc->params.secs_per_track;
 916                 softc->disk->d_fwheads = softc->params.heads;
 917                 softc->disk->d_devstat->block_size = softc->params.secsize;
 918                 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
 919
 920                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 921                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
 922                         daprevent(periph, PR_PREVENT);
 923         } else
 924                 softc->flags &= ~DA_FLAG_OPEN;
 925
 926         cam_periph_unhold(periph);
 927         cam_periph_unlock(periph);
 928
 929         if (error != 0) {
 930                 cam_periph_release(periph);
 931         }
 932         return (error);
 933 }
 934
 935 static int
 936 daclose(struct disk *dp)
 937 {
 938         struct  cam_periph *periph;
 939         struct  da_softc *softc;
 940         int error;
 941
 942         periph = (struct cam_periph *)dp->d_drv1;
 943         if (periph == NULL)
 944                 return (0);
 945
 946         cam_periph_lock(periph);
 947         if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
 948                 cam_periph_unlock(periph);
 949                 cam_periph_release(periph);
 950                 return (0);
 951         }
 952
 953         softc = (struct da_softc *)periph->softc;
 954
 955         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0
 956          && (softc->flags & DA_FLAG_PACK_INVALID) == 0) {
 957                 union   ccb *ccb;
 958
 959                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 960
 961                 scsi_synchronize_cache(&ccb->csio,
 962                                        /*retries*/1,
 963                                        /*cbfcnp*/dadone,
 964                                        MSG_SIMPLE_Q_TAG,
 965                                        /*begin_lba*/0,/* Cover the whole disk */
 966                                        /*lb_count*/0,
 967                                        SSD_FULL_SIZE,
 968                                        5 * 60 * 1000);
 969
 970                 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
 971                                   /*sense_flags*/SF_RETRY_UA,
 972                                   softc->disk->d_devstat);
 973
 974                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 975                         if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
 976                              CAM_SCSI_STATUS_ERROR) {
 977                                 int asc, ascq;
 978                                 int sense_key, error_code;
 979
 980                                 scsi_extract_sense_len(&ccb->csio.sense_data,
 981                                     ccb->csio.sense_len - ccb->csio.sense_resid,
 982                                     &error_code, &sense_key, &asc, &ascq,
 983                                     /*show_errors*/ 1);
 984                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
 985                                         scsi_sense_print(&ccb->csio);
 986                         } else {
 987                                 xpt_print(periph->path, "Synchronize cache "
 988                                     "failed, status == 0x%x, scsi status == "
 989                                     "0x%x\n", ccb->csio.ccb_h.status,
 990                                     ccb->csio.scsi_status);
 991                         }
 992                 }
 993
 994                 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 995                         cam_release_devq(ccb->ccb_h.path,
 996                                          /*relsim_flags*/0,
 997                                          /*reduction*/0,
 998                                          /*timeout*/0,
 999                                          /*getcount_only*/0);
1000
1001                 xpt_release_ccb(ccb);
1002
1003         }
1004
1005         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
1006                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1007                         daprevent(periph, PR_ALLOW);
1008                 /*
1009                  * If we've got removeable media, mark the blocksize as
1010                  * unavailable, since it could change when new media is
1011                  * inserted.
1012                  */
1013                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1014         }
1015
1016         softc->flags &= ~DA_FLAG_OPEN;
1017         cam_periph_unhold(periph);
1018         cam_periph_unlock(periph);
1019         cam_periph_release(periph);
1020         return (0);
1021 }
1022
1023 /*
1024  * Actually translate the requested transfer into one the physical driver
1025  * can understand.  The transfer is described by a buf and will include
1026  * only one physical transfer.
1027  */
1028 static void
1029 dastrategy(struct bio *bp)
1030 {
1031         struct cam_periph *periph;
1032         struct da_softc *softc;
1033
1034         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1035         if (periph == NULL) {
1036                 biofinish(bp, NULL, ENXIO);
1037                 return;
1038         }
1039         softc = (struct da_softc *)periph->softc;
1040
1041         cam_periph_lock(periph);
1042
1043         /*
1044          * If the device has been made invalid, error out
1045          */
1046         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1047                 cam_periph_unlock(periph);
1048                 biofinish(bp, NULL, ENXIO);
1049                 return;
1050         }
1051
1052         /*
1053          * Place it in the queue of disk activities for this disk
1054          */
1055         bioq_disksort(&softc->bio_queue, bp);
1056
1057         /*
1058          * Schedule ourselves for performing the work.
1059          */
1060         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1061         cam_periph_unlock(periph);
1062
1063         return;
1064 }
1065
1066 static int
1067 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1068 {
1069         struct      cam_periph *periph;
1070         struct      da_softc *softc;
1071         u_int       secsize;
1072         struct      ccb_scsiio csio;
1073         struct      disk *dp;
1074
1075         dp = arg;
1076         periph = dp->d_drv1;
1077         if (periph == NULL)
1078                 return (ENXIO);
1079         softc = (struct da_softc *)periph->softc;
1080         cam_periph_lock(periph);
1081         secsize = softc->params.secsize;
1082
1083         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1084                 cam_periph_unlock(periph);
1085                 return (ENXIO);
1086         }
1087
1088         if (length > 0) {
1089                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1090                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1091                 scsi_read_write(&csio,
1092                                 /*retries*/1,
1093                                 dadone,
1094                                 MSG_ORDERED_Q_TAG,
1095                                 /*read*/FALSE,
1096                                 /*byte2*/0,
1097                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1098                                 offset / secsize,
1099                                 length / secsize,
1100                                 /*data_ptr*/(u_int8_t *) virtual,
1101                                 /*dxfer_len*/length,
1102                                 /*sense_len*/SSD_FULL_SIZE,
1103                                 da_default_timeout * 1000);
1104                 xpt_polled_action((union ccb *)&csio);
1105                 cam_periph_unlock(periph);
1106
1107                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1108                         printf("Aborting dump due to I/O error.\n");
1109                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1110                              CAM_SCSI_STATUS_ERROR)
1111                                 scsi_sense_print(&csio);
1112                         else
1113                                 printf("status == 0x%x, scsi status == 0x%x\n",
1114                                        csio.ccb_h.status, csio.scsi_status);
1115                         return(EIO);
1116                 }
1117                 return(0);
1118         }
1119
1120         /*
1121          * Sync the disk cache contents to the physical media.
1122          */
1123         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1124
1125                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1126                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1127                 scsi_synchronize_cache(&csio,
1128                                        /*retries*/1,
1129                                        /*cbfcnp*/dadone,
1130                                        MSG_SIMPLE_Q_TAG,
1131                                        /*begin_lba*/0,/* Cover the whole disk */
1132                                        /*lb_count*/0,
1133                                        SSD_FULL_SIZE,
1134                                        5 * 60 * 1000);
1135                 xpt_polled_action((union ccb *)&csio);
1136
1137                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1138                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1139                              CAM_SCSI_STATUS_ERROR) {
1140                                 int asc, ascq;
1141                                 int sense_key, error_code;
1142
1143                                 scsi_extract_sense_len(&csio.sense_data,
1144                                     csio.sense_len - csio.sense_resid,
1145                                     &error_code, &sense_key, &asc, &ascq,
1146                                     /*show_errors*/ 1);
1147                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1148                                         scsi_sense_print(&csio);
1149                         } else {
1150                                 xpt_print(periph->path, "Synchronize cache "
1151                                     "failed, status == 0x%x, scsi status == "
1152                                     "0x%x\n", csio.ccb_h.status,
1153                                     csio.scsi_status);
1154                         }
1155                 }
1156         }
1157         cam_periph_unlock(periph);
1158         return (0);
1159 }
1160
1161 static int
1162 dagetattr(struct bio *bp)
1163 {
1164         int ret = -1;
1165         struct cam_periph *periph;
1166
1167         if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)
1168                 return ENXIO;
1169         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1170         if (periph->path == NULL)
1171                 return ENXIO;
1172
1173         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1174             periph->path);
1175         if (ret == 0)
1176                 bp->bio_completed = bp->bio_length;
1177         return ret;
1178 }
1179
1180 static void
1181 dainit(void)
1182 {
1183         cam_status status;
1184
1185         /*
1186          * Install a global async callback.  This callback will
1187          * receive async callbacks like "new device found".
1188          */
1189         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1190
1191         if (status != CAM_REQ_CMP) {
1192                 printf("da: Failed to attach master async callback "
1193                        "due to status 0x%x!\n", status);
1194         } else if (da_send_ordered) {
1195
1196                 /* Register our shutdown event handler */
1197                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1198                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1199                     printf("dainit: shutdown event registration failed!\n");
1200         }
1201 }
1202
1203 static void
1204 daoninvalidate(struct cam_periph *periph)
1205 {
1206         struct da_softc *softc;
1207
1208         softc = (struct da_softc *)periph->softc;
1209
1210         /*
1211          * De-register any async callbacks.
1212          */
1213         xpt_register_async(0, daasync, periph, periph->path);
1214
1215         softc->flags |= DA_FLAG_PACK_INVALID;
1216
1217         /*
1218          * Return all queued I/O with ENXIO.
1219          * XXX Handle any transactions queued to the card
1220          *     with XPT_ABORT_CCB.
1221          */
1222         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1223
1224         disk_gone(softc->disk);
1225         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1226                   softc->outstanding_cmds, periph->refcount);
1227 }
1228
1229 static void
1230 dacleanup(struct cam_periph *periph)
1231 {
1232         struct da_softc *softc;
1233
1234         softc = (struct da_softc *)periph->softc;
1235
1236         xpt_print(periph->path, "removing device entry\n");
1237         cam_periph_unlock(periph);
1238
1239         /*
1240          * If we can't free the sysctl tree, oh well...
1241          */
1242         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1243             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1244                 xpt_print(periph->path, "can't remove sysctl context\n");
1245         }
1246
1247         disk_destroy(softc->disk);
1248         callout_drain(&softc->sendordered_c);
1249         free(softc, M_DEVBUF);
1250         cam_periph_lock(periph);
1251 }
1252
1253 static void
1254 daasync(void *callback_arg, u_int32_t code,
1255         struct cam_path *path, void *arg)
1256 {
1257         struct cam_periph *periph;
1258
1259         periph = (struct cam_periph *)callback_arg;
1260         switch (code) {
1261         case AC_FOUND_DEVICE:
1262         {
1263                 struct ccb_getdev *cgd;
1264                 cam_status status;
1265
1266                 cgd = (struct ccb_getdev *)arg;
1267                 if (cgd == NULL)
1268                         break;
1269
1270                 if (cgd->protocol != PROTO_SCSI)
1271                         break;
1272
1273                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1274                     && SID_TYPE(&cgd->inq_data) != T_RBC
1275                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1276                         break;
1277
1278                 /*
1279                  * Allocate a peripheral instance for
1280                  * this device and start the probe
1281                  * process.
1282                  */
1283                 status = cam_periph_alloc(daregister, daoninvalidate,
1284                                           dacleanup, dastart,
1285                                           "da", CAM_PERIPH_BIO,
1286                                           cgd->ccb_h.path, daasync,
1287                                           AC_FOUND_DEVICE, cgd);
1288
1289                 if (status != CAM_REQ_CMP
1290                  && status != CAM_REQ_INPROG)
1291                         printf("daasync: Unable to attach to new device "
1292                                 "due to status 0x%x\n", status);
1293                 return;
1294         }
1295         case AC_ADVINFO_CHANGED:
1296         {
1297                 uintptr_t buftype;
1298
1299                 buftype = (uintptr_t)arg;
1300                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1301                         struct da_softc *softc;
1302
1303                         softc = periph->softc;
1304                         disk_attr_changed(softc->disk, "GEOM::physpath",
1305                                           M_NOWAIT);
1306                 }
1307                 break;
1308         }
1309         case AC_SENT_BDR:
1310         case AC_BUS_RESET:
1311         {
1312                 struct da_softc *softc;
1313                 struct ccb_hdr *ccbh;
1314
1315                 softc = (struct da_softc *)periph->softc;
1316                 /*
1317                  * Don't fail on the expected unit attention
1318                  * that will occur.
1319                  */
1320                 softc->flags |= DA_FLAG_RETRY_UA;
1321                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1322                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1323                 break;
1324         }
1325         default:
1326                 break;
1327         }
1328         cam_periph_async(periph, code, path, arg);
1329 }
1330
1331 static void
1332 dasysctlinit(void *context, int pending)
1333 {
1334         struct cam_periph *periph;
1335         struct da_softc *softc;
1336         char tmpstr[80], tmpstr2[80];
1337         struct ccb_trans_settings cts;
1338
1339         periph = (struct cam_periph *)context;
1340         /*
1341          * periph was held for us when this task was enqueued
1342          */
1343         if (periph->flags & CAM_PERIPH_INVALID) {
1344                 cam_periph_release(periph);
1345                 return;
1346         }
1347
1348         softc = (struct da_softc *)periph->softc;
1349         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1350         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1351
1352         sysctl_ctx_init(&softc->sysctl_ctx);
1353         softc->flags |= DA_FLAG_SCTX_INIT;
1354         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1355                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1356                 CTLFLAG_RD, 0, tmpstr);
1357         if (softc->sysctl_tree == NULL) {
1358                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1359                 cam_periph_release(periph);
1360                 return;
1361         }
1362
1363         /*
1364          * Now register the sysctl handler, so the user can change the value on
1365          * the fly.
1366          */
1367         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1368                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1369                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1370                 "Minimum CDB size");
1371
1372         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1373                        SYSCTL_CHILDREN(softc->sysctl_tree),
1374                        OID_AUTO,
1375                        "error_inject",
1376                        CTLFLAG_RW,
1377                        &softc->error_inject,
1378                        0,
1379                        "error_inject leaf");
1380
1381
1382         /*
1383          * Add some addressing info.
1384          */
1385         memset(&cts, 0, sizeof (cts));
1386         xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1387         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1388         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1389         cam_periph_lock(periph);
1390         xpt_action((union ccb *)&cts);
1391         cam_periph_unlock(periph);
1392         if (cts.ccb_h.status != CAM_REQ_CMP) {
1393                 cam_periph_release(periph);
1394                 return;
1395         }
1396         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1397                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1398                 if (fc->valid & CTS_FC_VALID_WWPN) {
1399                         softc->wwpn = fc->wwpn;
1400                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1401                             SYSCTL_CHILDREN(softc->sysctl_tree),
1402                             OID_AUTO, "wwpn", CTLFLAG_RD,
1403                             &softc->wwpn, "World Wide Port Name");
1404                 }
1405         }
1406         cam_periph_release(periph);
1407 }
1408
1409 static int
1410 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1411 {
1412         int error, value;
1413
1414         value = *(int *)arg1;
1415
1416         error = sysctl_handle_int(oidp, &value, 0, req);
1417
1418         if ((error != 0)
1419          || (req->newptr == NULL))
1420                 return (error);
1421
1422         /*
1423          * Acceptable values here are 6, 10, 12 or 16.
1424          */
1425         if (value < 6)
1426                 value = 6;
1427         else if ((value > 6)
1428               && (value <= 10))
1429                 value = 10;
1430         else if ((value > 10)
1431               && (value <= 12))
1432                 value = 12;
1433         else if (value > 12)
1434                 value = 16;
1435
1436         *(int *)arg1 = value;
1437
1438         return (0);
1439 }
1440
1441 static cam_status
1442 daregister(struct cam_periph *periph, void *arg)
1443 {
1444         struct da_softc *softc;
1445         struct ccb_pathinq cpi;
1446         struct ccb_getdev *cgd;
1447         char tmpstr[80];
1448         caddr_t match;
1449
1450         cgd = (struct ccb_getdev *)arg;
1451         if (periph == NULL) {
1452                 printf("daregister: periph was NULL!!\n");
1453                 return(CAM_REQ_CMP_ERR);
1454         }
1455
1456         if (cgd == NULL) {
1457                 printf("daregister: no getdev CCB, can't register device\n");
1458                 return(CAM_REQ_CMP_ERR);
1459         }
1460
1461         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1462             M_NOWAIT|M_ZERO);
1463
1464         if (softc == NULL) {
1465                 printf("daregister: Unable to probe new device. "
1466                        "Unable to allocate softc\n");
1467                 return(CAM_REQ_CMP_ERR);
1468         }
1469
1470         LIST_INIT(&softc->pending_ccbs);
1471         softc->state = DA_STATE_PROBE;
1472         bioq_init(&softc->bio_queue);
1473         if (SID_IS_REMOVABLE(&cgd->inq_data))
1474                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1475         if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1476                 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1477
1478         periph->softc = softc;
1479
1480         /*
1481          * See if this device has any quirks.
1482          */
1483         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1484                                (caddr_t)da_quirk_table,
1485                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1486                                sizeof(*da_quirk_table), scsi_inquiry_match);
1487
1488         if (match != NULL)
1489                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1490         else
1491                 softc->quirks = DA_Q_NONE;
1492
1493         /* Check if the SIM does not want 6 byte commands */
1494         bzero(&cpi, sizeof(cpi));
1495         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1496         cpi.ccb_h.func_code = XPT_PATH_INQ;
1497         xpt_action((union ccb *)&cpi);
1498         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1499                 softc->quirks |= DA_Q_NO_6_BYTE;
1500
1501         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1502
1503         /*
1504          * Take an exclusive refcount on the periph while dastart is called
1505          * to finish the probe.  The reference will be dropped in dadone at
1506          * the end of probe.
1507          */
1508         (void)cam_periph_hold(periph, PRIBIO);
1509
1510         /*
1511          * Schedule a periodic event to occasionally send an
1512          * ordered tag to a device.
1513          */
1514         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1515         callout_reset(&softc->sendordered_c,
1516             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1517             dasendorderedtag, softc);
1518
1519         mtx_unlock(periph->sim->mtx);
1520         /*
1521          * RBC devices don't have to support READ(6), only READ(10).
1522          */
1523         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1524                 softc->minimum_cmd_size = 10;
1525         else
1526                 softc->minimum_cmd_size = 6;
1527
1528         /*
1529          * Load the user's default, if any.
1530          */
1531         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1532                  periph->unit_number);
1533         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1534
1535         /*
1536          * 6, 10, 12 and 16 are the currently permissible values.
1537          */
1538         if (softc->minimum_cmd_size < 6)
1539                 softc->minimum_cmd_size = 6;
1540         else if ((softc->minimum_cmd_size > 6)
1541               && (softc->minimum_cmd_size <= 10))
1542                 softc->minimum_cmd_size = 10;
1543         else if ((softc->minimum_cmd_size > 10)
1544               && (softc->minimum_cmd_size <= 12))
1545                 softc->minimum_cmd_size = 12;
1546         else if (softc->minimum_cmd_size > 12)
1547                 softc->minimum_cmd_size = 16;
1548
1549         /* Predict whether device may support READ CAPACITY(16). */
1550         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3 ||
1551             (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC &&
1552              (cgd->inq_data.spc3_flags & SPC3_SID_PROTECT))) {
1553                 softc->flags |= DA_FLAG_CAN_RC16;
1554                 softc->state = DA_STATE_PROBE2;
1555         }
1556
1557         /*
1558          * Register this media as a disk.
1559          */
1560         softc->disk = disk_alloc();
1561         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1562                           periph->unit_number, 0,
1563                           DEVSTAT_BS_UNAVAILABLE,
1564                           SID_TYPE(&cgd->inq_data) |
1565                           XPORT_DEVSTAT_TYPE(cpi.transport),
1566                           DEVSTAT_PRIORITY_DISK);
1567         softc->disk->d_open = daopen;
1568         softc->disk->d_close = daclose;
1569         softc->disk->d_strategy = dastrategy;
1570         softc->disk->d_dump = dadump;
1571         softc->disk->d_getattr = dagetattr;
1572         softc->disk->d_name = "da";
1573         softc->disk->d_drv1 = periph;
1574         if (cpi.maxio == 0)
1575                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1576         else if (cpi.maxio > MAXPHYS)
1577                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1578         else
1579                 softc->disk->d_maxsize = cpi.maxio;
1580         softc->disk->d_unit = periph->unit_number;
1581         softc->disk->d_flags = 0;
1582         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1583                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1584         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1585             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1586         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1587         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1588             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1589             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1590         softc->disk->d_hba_vendor = cpi.hba_vendor;
1591         softc->disk->d_hba_device = cpi.hba_device;
1592         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1593         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1594         disk_create(softc->disk, DISK_VERSION);
1595         mtx_lock(periph->sim->mtx);
1596
1597         /*
1598          * Add async callbacks for events of interest.
1599          * I don't bother checking if this fails as,
1600          * in most cases, the system will function just
1601          * fine without them and the only alternative
1602          * would be to not attach the device on failure.
1603          */
1604         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET
1605                          | AC_LOST_DEVICE | AC_ADVINFO_CHANGED,
1606                            daasync, periph, periph->path);
1607
1608         /*
1609          * Emit an attribute changed notification just in case
1610          * physical path information arrived before our async
1611          * event handler was registered, but after anyone attaching
1612          * to our disk device polled it.
1613          */
1614         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
1615
1616         xpt_schedule(periph, CAM_PRIORITY_DEV);
1617
1618         return(CAM_REQ_CMP);
1619 }
1620
1621 static void
1622 dastart(struct cam_periph *periph, union ccb *start_ccb)
1623 {
1624         struct da_softc *softc;
1625
1626         softc = (struct da_softc *)periph->softc;
1627
1628         switch (softc->state) {
1629         case DA_STATE_NORMAL:
1630         {
1631                 /* Pull a buffer from the queue and get going on it */
1632                 struct bio *bp;
1633
1634                 /*
1635                  * See if there is a buf with work for us to do..
1636                  */
1637                 bp = bioq_first(&softc->bio_queue);
1638                 if (periph->immediate_priority <= periph->pinfo.priority) {
1639                         CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1640                                         ("queuing for immediate ccb\n"));
1641                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1642                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1643                                           periph_links.sle);
1644                         periph->immediate_priority = CAM_PRIORITY_NONE;
1645                         wakeup(&periph->ccb_list);
1646                 } else if (bp == NULL) {
1647                         xpt_release_ccb(start_ccb);
1648                 } else {
1649                         u_int8_t tag_code;
1650
1651                         bioq_remove(&softc->bio_queue, bp);
1652
1653                         if ((bp->bio_flags & BIO_ORDERED) != 0
1654                          || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1655                                 softc->flags &= ~DA_FLAG_NEED_OTAG;
1656                                 softc->ordered_tag_count++;
1657                                 tag_code = MSG_ORDERED_Q_TAG;
1658                         } else {
1659                                 tag_code = MSG_SIMPLE_Q_TAG;
1660                         }
1661                         switch (bp->bio_cmd) {
1662                         case BIO_READ:
1663                         case BIO_WRITE:
1664                                 scsi_read_write(&start_ccb->csio,
1665                                                 /*retries*/da_retry_count,
1666                                                 /*cbfcnp*/dadone,
1667                                                 /*tag_action*/tag_code,
1668                                                 /*read_op*/bp->bio_cmd
1669                                                         == BIO_READ,
1670                                                 /*byte2*/0,
1671                                                 softc->minimum_cmd_size,
1672                                                 /*lba*/bp->bio_pblkno,
1673                                                 /*block_count*/bp->bio_bcount /
1674                                                 softc->params.secsize,
1675                                                 /*data_ptr*/ bp->bio_data,
1676                                                 /*dxfer_len*/ bp->bio_bcount,
1677                                                 /*sense_len*/SSD_FULL_SIZE,
1678                                                 da_default_timeout * 1000);
1679                                 break;
1680                         case BIO_FLUSH:
1681                                 /*
1682                                  * BIO_FLUSH doesn't currently communicate
1683                                  * range data, so we synchronize the cache
1684                                  * over the whole disk.  We also force
1685                                  * ordered tag semantics the flush applies
1686                                  * to all previously queued I/O.
1687                                  */
1688                                 scsi_synchronize_cache(&start_ccb->csio,
1689                                                        /*retries*/1,
1690                                                        /*cbfcnp*/dadone,
1691                                                        MSG_ORDERED_Q_TAG,
1692                                                        /*begin_lba*/0,
1693                                                        /*lb_count*/0,
1694                                                        SSD_FULL_SIZE,
1695                                                        da_default_timeout*1000);
1696                                 break;
1697                         }
1698                         start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1699
1700                         /*
1701                          * Block out any asyncronous callbacks
1702                          * while we touch the pending ccb list.
1703                          */
1704                         LIST_INSERT_HEAD(&softc->pending_ccbs,
1705                                          &start_ccb->ccb_h, periph_links.le);
1706                         softc->outstanding_cmds++;
1707
1708                         /* We expect a unit attention from this device */
1709                         if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1710                                 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1711                                 softc->flags &= ~DA_FLAG_RETRY_UA;
1712                         }
1713
1714                         start_ccb->ccb_h.ccb_bp = bp;
1715                         bp = bioq_first(&softc->bio_queue);
1716
1717                         xpt_action(start_ccb);
1718                 }
1719
1720                 if (bp != NULL) {
1721                         /* Have more work to do, so ensure we stay scheduled */
1722                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1723                 }
1724                 break;
1725         }
1726         case DA_STATE_PROBE:
1727         {
1728                 struct ccb_scsiio *csio;
1729                 struct scsi_read_capacity_data *rcap;
1730
1731                 rcap = (struct scsi_read_capacity_data *)
1732                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1733                 if (rcap == NULL) {
1734                         printf("dastart: Couldn't malloc read_capacity data\n");
1735                         /* da_free_periph??? */
1736                         break;
1737                 }
1738                 csio = &start_ccb->csio;
1739                 scsi_read_capacity(csio,
1740                                    /*retries*/4,
1741                                    dadone,
1742                                    MSG_SIMPLE_Q_TAG,
1743                                    rcap,
1744                                    SSD_FULL_SIZE,
1745                                    /*timeout*/5000);
1746                 start_ccb->ccb_h.ccb_bp = NULL;
1747                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1748                 xpt_action(start_ccb);
1749                 break;
1750         }
1751         case DA_STATE_PROBE2:
1752         {
1753                 struct ccb_scsiio *csio;
1754                 struct scsi_read_capacity_data_long *rcaplong;
1755
1756                 rcaplong = (struct scsi_read_capacity_data_long *)
1757                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1758                 if (rcaplong == NULL) {
1759                         printf("dastart: Couldn't malloc read_capacity data\n");
1760                         /* da_free_periph??? */
1761                         break;
1762                 }
1763                 csio = &start_ccb->csio;
1764                 scsi_read_capacity_16(csio,
1765                                       /*retries*/ 4,
1766                                       /*cbfcnp*/ dadone,
1767                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
1768                                       /*lba*/ 0,
1769                                       /*reladr*/ 0,
1770                                       /*pmi*/ 0,
1771                                       rcaplong,
1772                                       /*sense_len*/ SSD_FULL_SIZE,
1773                                       /*timeout*/ 60000);
1774                 start_ccb->ccb_h.ccb_bp = NULL;
1775                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1776                 xpt_action(start_ccb);
1777                 break;
1778         }
1779         }
1780 }
1781
1782 static int
1783 cmd6workaround(union ccb *ccb)
1784 {
1785         struct scsi_rw_6 cmd6;
1786         struct scsi_rw_10 *cmd10;
1787         struct da_softc *softc;
1788         u_int8_t *cdb;
1789         int frozen;
1790
1791         cdb = ccb->csio.cdb_io.cdb_bytes;
1792
1793         /* Translation only possible if CDB is an array and cmd is R/W6 */
1794         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1795             (*cdb != READ_6 && *cdb != WRITE_6))
1796                 return 0;
1797
1798         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1799             "increasing minimum_cmd_size to 10.\n");
1800         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1801         softc->minimum_cmd_size = 10;
1802
1803         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1804         cmd10 = (struct scsi_rw_10 *)cdb;
1805         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1806         cmd10->byte2 = 0;
1807         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1808         cmd10->reserved = 0;
1809         scsi_ulto2b(cmd6.length, cmd10->length);
1810         cmd10->control = cmd6.control;
1811         ccb->csio.cdb_len = sizeof(*cmd10);
1812
1813         /* Requeue request, unfreezing queue if necessary */
1814         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1815         ccb->ccb_h.status = CAM_REQUEUE_REQ;
1816         xpt_action(ccb);
1817         if (frozen) {
1818                 cam_release_devq(ccb->ccb_h.path,
1819                                  /*relsim_flags*/0,
1820                                  /*reduction*/0,
1821                                  /*timeout*/0,
1822                                  /*getcount_only*/0);
1823         }
1824         return (ERESTART);
1825 }
1826
1827 static void
1828 dadone(struct cam_periph *periph, union ccb *done_ccb)
1829 {
1830         struct da_softc *softc;
1831         struct ccb_scsiio *csio;
1832         u_int32_t  priority;
1833
1834         softc = (struct da_softc *)periph->softc;
1835         priority = done_ccb->ccb_h.pinfo.priority;
1836         csio = &done_ccb->csio;
1837         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1838         case DA_CCB_BUFFER_IO:
1839         {
1840                 struct bio *bp;
1841
1842                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1843                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1844                         int error;
1845                         int sf;
1846
1847                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1848                                 sf = SF_RETRY_UA;
1849                         else
1850                                 sf = 0;
1851
1852                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1853                         if (error == ERESTART) {
1854                                 /*
1855                                  * A retry was scheuled, so
1856                                  * just return.
1857                                  */
1858                                 return;
1859                         }
1860                         if (error != 0) {
1861                                 int queued_error;
1862
1863                                 /*
1864                                  * return all queued I/O with EIO, so that
1865                                  * the client can retry these I/Os in the
1866                                  * proper order should it attempt to recover.
1867                                  */
1868                                 queued_error = EIO;
1869
1870                                 if (error == ENXIO
1871                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
1872                                         /*
1873                                          * Catastrophic error.  Mark our pack as
1874                                          * invalid.
1875                                          */
1876                                         /*
1877                                          * XXX See if this is really a media
1878                                          * XXX change first?
1879                                          */
1880                                         xpt_print(periph->path,
1881                                             "Invalidating pack\n");
1882                                         softc->flags |= DA_FLAG_PACK_INVALID;
1883                                         queued_error = ENXIO;
1884                                 }
1885                                 bioq_flush(&softc->bio_queue, NULL,
1886                                            queued_error);
1887                                 bp->bio_error = error;
1888                                 bp->bio_resid = bp->bio_bcount;
1889                                 bp->bio_flags |= BIO_ERROR;
1890                         } else {
1891                                 bp->bio_resid = csio->resid;
1892                                 bp->bio_error = 0;
1893                                 if (bp->bio_resid != 0)
1894                                         bp->bio_flags |= BIO_ERROR;
1895                         }
1896                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1897                                 cam_release_devq(done_ccb->ccb_h.path,
1898                                                  /*relsim_flags*/0,
1899                                                  /*reduction*/0,
1900                                                  /*timeout*/0,
1901                                                  /*getcount_only*/0);
1902                 } else {
1903                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1904                                 panic("REQ_CMP with QFRZN");
1905                         bp->bio_resid = csio->resid;
1906                         if (csio->resid > 0)
1907                                 bp->bio_flags |= BIO_ERROR;
1908                         if (softc->error_inject != 0) {
1909                                 bp->bio_error = softc->error_inject;
1910                                 bp->bio_resid = bp->bio_bcount;
1911                                 bp->bio_flags |= BIO_ERROR;
1912                                 softc->error_inject = 0;
1913                         }
1914
1915                 }
1916
1917                 /*
1918                  * Block out any asyncronous callbacks
1919                  * while we touch the pending ccb list.
1920                  */
1921                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1922                 softc->outstanding_cmds--;
1923                 if (softc->outstanding_cmds == 0)
1924                         softc->flags |= DA_FLAG_WENT_IDLE;
1925
1926                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1927                         xpt_print(periph->path, "oustanding %d\n",
1928                                   softc->outstanding_cmds);
1929                 }
1930
1931                 biodone(bp);
1932                 break;
1933         }
1934         case DA_CCB_PROBE:
1935         case DA_CCB_PROBE2:
1936         {
1937                 struct     scsi_read_capacity_data *rdcap;
1938                 struct     scsi_read_capacity_data_long *rcaplong;
1939                 char       announce_buf[80];
1940
1941                 rdcap = NULL;
1942                 rcaplong = NULL;
1943                 if (softc->state == DA_STATE_PROBE)
1944                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1945                 else
1946                         rcaplong = (struct scsi_read_capacity_data_long *)
1947                                 csio->data_ptr;
1948
1949                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1950                         struct disk_params *dp;
1951                         uint32_t block_size;
1952                         uint64_t maxsector;
1953                         u_int lbppbe;   /* LB per physical block exponent. */
1954                         u_int lalba;    /* Lowest aligned LBA. */
1955
1956                         if (softc->state == DA_STATE_PROBE) {
1957                                 block_size = scsi_4btoul(rdcap->length);
1958                                 maxsector = scsi_4btoul(rdcap->addr);
1959                                 lbppbe = 0;
1960                                 lalba = 0;
1961
1962                                 /*
1963                                  * According to SBC-2, if the standard 10
1964                                  * byte READ CAPACITY command returns 2^32,
1965                                  * we should issue the 16 byte version of
1966                                  * the command, since the device in question
1967                                  * has more sectors than can be represented
1968                                  * with the short version of the command.
1969                                  */
1970                                 if (maxsector == 0xffffffff) {
1971                                         softc->state = DA_STATE_PROBE2;
1972                                         free(rdcap, M_SCSIDA);
1973                                         xpt_release_ccb(done_ccb);
1974                                         xpt_schedule(periph, priority);
1975                                         return;
1976                                 }
1977                         } else {
1978                                 block_size = scsi_4btoul(rcaplong->length);
1979                                 maxsector = scsi_8btou64(rcaplong->addr);
1980                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
1981                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
1982                         }
1983
1984                         /*
1985                          * Because GEOM code just will panic us if we
1986                          * give them an 'illegal' value we'll avoid that
1987                          * here.
1988                          */
1989                         if (block_size == 0 && maxsector == 0) {
1990                                 snprintf(announce_buf, sizeof(announce_buf),
1991                                         "0MB (no media?)");
1992                         } else if (block_size >= MAXPHYS || block_size == 0) {
1993                                 xpt_print(periph->path,
1994                                     "unsupportable block size %ju\n",
1995                                     (uintmax_t) block_size);
1996                                 announce_buf[0] = '\0';
1997                                 cam_periph_invalidate(periph);
1998                         } else {
1999                                 dasetgeom(periph, block_size, maxsector,
2000                                     lbppbe, lalba & SRC16_LALBA);
2001                                 if (lalba & SRC16_LBPME)
2002                                         softc->flags |= DA_FLAG_CAN_LBPME;
2003                                 else
2004                                         softc->flags &= ~DA_FLAG_CAN_LBPME;
2005                                 dp = &softc->params;
2006                                 snprintf(announce_buf, sizeof(announce_buf),
2007                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
2008                                         "%dC)", (uintmax_t)
2009                                         (((uintmax_t)dp->secsize *
2010                                         dp->sectors) / (1024*1024)),
2011                                         (uintmax_t)dp->sectors,
2012                                         dp->secsize, dp->heads,
2013                                         dp->secs_per_track, dp->cylinders);
2014                         }
2015                 } else {
2016                         int     error;
2017
2018                         announce_buf[0] = '\0';
2019
2020                         /*
2021                          * Retry any UNIT ATTENTION type errors.  They
2022                          * are expected at boot.
2023                          */
2024                         error = daerror(done_ccb, CAM_RETRY_SELTO,
2025                                         SF_RETRY_UA|SF_NO_PRINT);
2026                         if (error == ERESTART) {
2027                                 /*
2028                                  * A retry was scheuled, so
2029                                  * just return.
2030                                  */
2031                                 return;
2032                         } else if (error != 0) {
2033                                 struct scsi_sense_data *sense;
2034                                 int asc, ascq;
2035                                 int sense_key, error_code;
2036                                 int have_sense;
2037                                 cam_status status;
2038                                 struct ccb_getdev cgd;
2039
2040                                 /* Don't wedge this device's queue */
2041                                 status = done_ccb->ccb_h.status;
2042                                 if ((status & CAM_DEV_QFRZN) != 0)
2043                                         cam_release_devq(done_ccb->ccb_h.path,
2044                                                          /*relsim_flags*/0,
2045                                                          /*reduction*/0,
2046                                                          /*timeout*/0,
2047                                                          /*getcount_only*/0);
2048
2049
2050                                 xpt_setup_ccb(&cgd.ccb_h,
2051                                               done_ccb->ccb_h.path,
2052                                               CAM_PRIORITY_NORMAL);
2053                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2054                                 xpt_action((union ccb *)&cgd);
2055
2056                                 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
2057                                  || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
2058                                  || ((status & CAM_AUTOSNS_VALID) == 0))
2059                                         have_sense = FALSE;
2060                                 else
2061                                         have_sense = TRUE;
2062
2063                                 if (have_sense) {
2064                                         sense = &csio->sense_data;
2065                                         scsi_extract_sense_len(sense,
2066                                             csio->sense_len - csio->sense_resid,
2067                                             &error_code, &sense_key, &asc,
2068                                             &ascq, /*show_errors*/ 1);
2069                                 }
2070                                 /*
2071                                  * If we tried READ CAPACITY(16) and failed,
2072                                  * fallback to READ CAPACITY(10).
2073                                  */
2074                                 if ((softc->state == DA_STATE_PROBE2) &&
2075                                     (softc->flags & DA_FLAG_CAN_RC16) &&
2076                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
2077                                         CAM_REQ_INVALID) ||
2078                                      ((have_sense) &&
2079                                       (error_code == SSD_CURRENT_ERROR) &&
2080                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
2081                                         softc->flags &= ~DA_FLAG_CAN_RC16;
2082                                         softc->state = DA_STATE_PROBE;
2083                                         free(rdcap, M_SCSIDA);
2084                                         xpt_release_ccb(done_ccb);
2085                                         xpt_schedule(periph, priority);
2086                                         return;
2087                                 } else
2088                                 /*
2089                                  * Attach to anything that claims to be a
2090                                  * direct access or optical disk device,
2091                                  * as long as it doesn't return a "Logical
2092                                  * unit not supported" (0x25) error.
2093                                  */
2094                                 if ((have_sense) && (asc != 0x25)
2095                                  && (error_code == SSD_CURRENT_ERROR)) {
2096                                         const char *sense_key_desc;
2097                                         const char *asc_desc;
2098
2099                                         scsi_sense_desc(sense_key, asc, ascq,
2100                                                         &cgd.inq_data,
2101                                                         &sense_key_desc,
2102                                                         &asc_desc);
2103                                         snprintf(announce_buf,
2104                                             sizeof(announce_buf),
2105                                                 "Attempt to query device "
2106                                                 "size failed: %s, %s",
2107                                                 sense_key_desc,
2108                                                 asc_desc);
2109                                 } else {
2110                                         if (have_sense)
2111                                                 scsi_sense_print(
2112                                                         &done_ccb->csio);
2113                                         else {
2114                                                 xpt_print(periph->path,
2115                                                     "got CAM status %#x\n",
2116                                                     done_ccb->ccb_h.status);
2117                                         }
2118
2119                                         xpt_print(periph->path, "fatal error, "
2120                                             "failed to attach to device\n");
2121
2122                                         /*
2123                                          * Free up resources.
2124                                          */
2125                                         cam_periph_invalidate(periph);
2126                                 }
2127                         }
2128                 }
2129                 free(csio->data_ptr, M_SCSIDA);
2130                 if (announce_buf[0] != '\0') {
2131                         /*
2132                          * Create our sysctl variables, now that we know
2133                          * we have successfully attached.
2134                          */
2135                         /* increase the refcount */
2136                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2137                                 taskqueue_enqueue(taskqueue_thread,
2138                                                   &softc->sysctl_task);
2139                                 xpt_announce_periph(periph, announce_buf);
2140                         } else {
2141                                 xpt_print(periph->path, "fatal error, "
2142                                     "could not acquire reference count\n");
2143                         }
2144
2145                 }
2146                 softc->state = DA_STATE_NORMAL;
2147                 /*
2148                  * Since our peripheral may be invalidated by an error
2149                  * above or an external event, we must release our CCB
2150                  * before releasing the probe lock on the peripheral.
2151                  * The peripheral will only go away once the last lock
2152                  * is removed, and we need it around for the CCB release
2153                  * operation.
2154                  */
2155                 xpt_release_ccb(done_ccb);
2156                 cam_periph_unhold(periph);
2157                 return;
2158         }
2159         case DA_CCB_WAITING:
2160         {
2161                 /* Caller will release the CCB */
2162                 wakeup(&done_ccb->ccb_h.cbfcnp);
2163                 return;
2164         }
2165         case DA_CCB_DUMP:
2166                 /* No-op.  We're polling */
2167                 return;
2168         default:
2169                 break;
2170         }
2171         xpt_release_ccb(done_ccb);
2172 }
2173
2174 static int
2175 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2176 {
2177         struct da_softc   *softc;
2178         struct cam_periph *periph;
2179         int error;
2180
2181         periph = xpt_path_periph(ccb->ccb_h.path);
2182         softc = (struct da_softc *)periph->softc;
2183
2184         /*
2185          * Automatically detect devices that do not support
2186          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
2187          */
2188         error = 0;
2189         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2190                 error = cmd6workaround(ccb);
2191         } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2192                    CAM_SCSI_STATUS_ERROR)
2193          && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
2194          && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
2195          && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
2196          && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2197                 int sense_key, error_code, asc, ascq;
2198
2199                 scsi_extract_sense(&ccb->csio.sense_data,
2200                                    &error_code, &sense_key, &asc, &ascq);
2201                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2202                         error = cmd6workaround(ccb);
2203         }
2204         if (error == ERESTART)
2205                 return (ERESTART);
2206
2207         /*
2208          * XXX
2209          * Until we have a better way of doing pack validation,
2210          * don't treat UAs as errors.
2211          */
2212         sense_flags |= SF_RETRY_UA;
2213         return(cam_periph_error(ccb, cam_flags, sense_flags,
2214                                 &softc->saved_ccb));
2215 }
2216
2217 static void
2218 daprevent(struct cam_periph *periph, int action)
2219 {
2220         struct  da_softc *softc;
2221         union   ccb *ccb;
2222         int     error;
2223
2224         softc = (struct da_softc *)periph->softc;
2225
2226         if (((action == PR_ALLOW)
2227           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2228          || ((action == PR_PREVENT)
2229           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2230                 return;
2231         }
2232
2233         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2234
2235         scsi_prevent(&ccb->csio,
2236                      /*retries*/1,
2237                      /*cbcfp*/dadone,
2238                      MSG_SIMPLE_Q_TAG,
2239                      action,
2240                      SSD_FULL_SIZE,
2241                      5000);
2242
2243         error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
2244                                   SF_RETRY_UA, softc->disk->d_devstat);
2245
2246         if (error == 0) {
2247                 if (action == PR_ALLOW)
2248                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
2249                 else
2250                         softc->flags |= DA_FLAG_PACK_LOCKED;
2251         }
2252
2253         xpt_release_ccb(ccb);
2254 }
2255
2256 static int
2257 dagetcapacity(struct cam_periph *periph)
2258 {
2259         struct da_softc *softc;
2260         union ccb *ccb;
2261         struct scsi_read_capacity_data *rcap;
2262         struct scsi_read_capacity_data_long *rcaplong;
2263         uint32_t block_len;
2264         uint64_t maxsector;
2265         int error, rc16failed;
2266         u_int32_t sense_flags;
2267         u_int lbppbe;   /* Logical blocks per physical block exponent. */
2268         u_int lalba;    /* Lowest aligned LBA. */
2269
2270         softc = (struct da_softc *)periph->softc;
2271         block_len = 0;
2272         maxsector = 0;
2273         lbppbe = 0;
2274         lalba = 0;
2275         error = 0;
2276         rc16failed = 0;
2277         sense_flags = SF_RETRY_UA;
2278         if (softc->flags & DA_FLAG_PACK_REMOVABLE)
2279                 sense_flags |= SF_NO_PRINT;
2280
2281         /* Do a read capacity */
2282         rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
2283                                                         M_SCSIDA,
2284                                                         M_NOWAIT | M_ZERO);
2285         if (rcap == NULL)
2286                 return (ENOMEM);
2287         rcaplong = (struct scsi_read_capacity_data_long *)rcap;
2288
2289         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2290
2291         /* Try READ CAPACITY(16) first if we think it should work. */
2292         if (softc->flags & DA_FLAG_CAN_RC16) {
2293                 scsi_read_capacity_16(&ccb->csio,
2294                               /*retries*/ 4,
2295                               /*cbfcnp*/ dadone,
2296                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2297                               /*lba*/ 0,
2298                               /*reladr*/ 0,
2299                               /*pmi*/ 0,
2300                               rcaplong,
2301                               /*sense_len*/ SSD_FULL_SIZE,
2302                               /*timeout*/ 60000);
2303                 ccb->ccb_h.ccb_bp = NULL;
2304
2305                 error = cam_periph_runccb(ccb, daerror,
2306                                   /*cam_flags*/CAM_RETRY_SELTO,
2307                                   sense_flags,
2308                                   softc->disk->d_devstat);
2309
2310                 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2311                         cam_release_devq(ccb->ccb_h.path,
2312                                  /*relsim_flags*/0,
2313                                  /*reduction*/0,
2314                                  /*timeout*/0,
2315                                  /*getcount_only*/0);
2316
2317                 if (error == 0)
2318                         goto rc16ok;
2319
2320                 /* If we got ILLEGAL REQUEST, do not prefer RC16 any more. */
2321                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2322                      CAM_REQ_INVALID) {
2323                         softc->flags &= ~DA_FLAG_CAN_RC16;
2324                 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2325                      CAM_SCSI_STATUS_ERROR) &&
2326                     (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) &&
2327                     (ccb->ccb_h.status & CAM_AUTOSNS_VALID) &&
2328                     ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) &&
2329                     ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2330                         int sense_key, error_code, asc, ascq;
2331
2332                         scsi_extract_sense(&ccb->csio.sense_data,
2333                                    &error_code, &sense_key, &asc, &ascq);
2334                         if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2335                                 softc->flags &= ~DA_FLAG_CAN_RC16;
2336                 }
2337                 rc16failed = 1;
2338         }
2339
2340         /* Do READ CAPACITY(10). */
2341         scsi_read_capacity(&ccb->csio,
2342                            /*retries*/4,
2343                            /*cbfncp*/dadone,
2344                            MSG_SIMPLE_Q_TAG,
2345                            rcap,
2346                            SSD_FULL_SIZE,
2347                            /*timeout*/60000);
2348         ccb->ccb_h.ccb_bp = NULL;
2349
2350         error = cam_periph_runccb(ccb, daerror,
2351                                   /*cam_flags*/CAM_RETRY_SELTO,
2352                                   sense_flags,
2353                                   softc->disk->d_devstat);
2354
2355         if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2356                 cam_release_devq(ccb->ccb_h.path,
2357                                  /*relsim_flags*/0,
2358                                  /*reduction*/0,
2359                                  /*timeout*/0,
2360                                  /*getcount_only*/0);
2361
2362         if (error == 0) {
2363                 block_len = scsi_4btoul(rcap->length);
2364                 maxsector = scsi_4btoul(rcap->addr);
2365
2366                 if (maxsector != 0xffffffff || rc16failed)
2367                         goto done;
2368         } else
2369                 goto done;
2370
2371         /* If READ CAPACITY(10) returned overflow, use READ CAPACITY(16) */
2372         scsi_read_capacity_16(&ccb->csio,
2373                               /*retries*/ 4,
2374                               /*cbfcnp*/ dadone,
2375                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2376                               /*lba*/ 0,
2377                               /*reladr*/ 0,
2378                               /*pmi*/ 0,
2379                               rcaplong,
2380                               /*sense_len*/ SSD_FULL_SIZE,
2381                               /*timeout*/ 60000);
2382         ccb->ccb_h.ccb_bp = NULL;
2383
2384         error = cam_periph_runccb(ccb, daerror,
2385                                   /*cam_flags*/CAM_RETRY_SELTO,
2386                                   sense_flags,
2387                                   softc->disk->d_devstat);
2388
2389         if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
2390                 cam_release_devq(ccb->ccb_h.path,
2391                                  /*relsim_flags*/0,
2392                                  /*reduction*/0,
2393                                  /*timeout*/0,
2394                                  /*getcount_only*/0);
2395
2396         if (error == 0) {
2397 rc16ok:
2398                 block_len = scsi_4btoul(rcaplong->length);
2399                 maxsector = scsi_8btou64(rcaplong->addr);
2400                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2401                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2402         }
2403
2404 done:
2405
2406         if (error == 0) {
2407                 if (block_len >= MAXPHYS || block_len == 0) {
2408                         xpt_print(periph->path,
2409                             "unsupportable block size %ju\n",
2410                             (uintmax_t) block_len);
2411                         error = EINVAL;
2412                 } else {
2413                         dasetgeom(periph, block_len, maxsector,
2414                             lbppbe, lalba & SRC16_LALBA);
2415                         if (lalba & SRC16_LBPME)
2416                                 softc->flags |= DA_FLAG_CAN_LBPME;
2417                         else
2418                                 softc->flags &= ~DA_FLAG_CAN_LBPME;
2419                 }
2420         }
2421
2422         xpt_release_ccb(ccb);
2423
2424         free(rcap, M_SCSIDA);
2425
2426         return (error);
2427 }
2428
2429 static void
2430 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
2431     u_int lbppbe, u_int lalba)
2432 {
2433         struct ccb_calc_geometry ccg;
2434         struct da_softc *softc;
2435         struct disk_params *dp;
2436
2437         softc = (struct da_softc *)periph->softc;
2438
2439         dp = &softc->params;
2440         dp->secsize = block_len;
2441         dp->sectors = maxsector + 1;
2442         if (lbppbe > 0) {
2443                 dp->stripesize = block_len << lbppbe;
2444                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
2445                     dp->stripesize;
2446         } else if (softc->quirks & DA_Q_4K) {
2447                 dp->stripesize = 4096;
2448                 dp->stripeoffset = 0;
2449         } else {
2450                 dp->stripesize = 0;
2451                 dp->stripeoffset = 0;
2452         }
2453         /*
2454          * Have the controller provide us with a geometry
2455          * for this disk.  The only time the geometry
2456          * matters is when we boot and the controller
2457          * is the only one knowledgeable enough to come
2458          * up with something that will make this a bootable
2459          * device.
2460          */
2461         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2462         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2463         ccg.block_size = dp->secsize;
2464         ccg.volume_size = dp->sectors;
2465         ccg.heads = 0;
2466         ccg.secs_per_track = 0;
2467         ccg.cylinders = 0;
2468         xpt_action((union ccb*)&ccg);
2469         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2470                 /*
2471                  * We don't know what went wrong here- but just pick
2472                  * a geometry so we don't have nasty things like divide
2473                  * by zero.
2474                  */
2475                 dp->heads = 255;
2476                 dp->secs_per_track = 255;
2477                 dp->cylinders = dp->sectors / (255 * 255);
2478                 if (dp->cylinders == 0) {
2479                         dp->cylinders = 1;
2480                 }
2481         } else {
2482                 dp->heads = ccg.heads;
2483                 dp->secs_per_track = ccg.secs_per_track;
2484                 dp->cylinders = ccg.cylinders;
2485         }
2486 }
2487
2488 static void
2489 dasendorderedtag(void *arg)
2490 {
2491         struct da_softc *softc = arg;
2492
2493         if (da_send_ordered) {
2494                 if ((softc->ordered_tag_count == 0)
2495                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2496                         softc->flags |= DA_FLAG_NEED_OTAG;
2497                 }
2498                 if (softc->outstanding_cmds > 0)
2499                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2500
2501                 softc->ordered_tag_count = 0;
2502         }
2503         /* Queue us up again */
2504         callout_reset(&softc->sendordered_c,
2505             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2506             dasendorderedtag, softc);
2507 }
2508
2509 /*
2510  * Step through all DA peripheral drivers, and if the device is still open,
2511  * sync the disk cache to physical media.
2512  */
2513 static void
2514 dashutdown(void * arg, int howto)
2515 {
2516         struct cam_periph *periph;
2517         struct da_softc *softc;
2518
2519         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2520                 union ccb ccb;
2521
2522                 cam_periph_lock(periph);
2523                 softc = (struct da_softc *)periph->softc;
2524
2525                 /*
2526                  * We only sync the cache if the drive is still open, and
2527                  * if the drive is capable of it..
2528                  */
2529                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2530                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2531                         cam_periph_unlock(periph);
2532                         continue;
2533                 }
2534
2535                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2536
2537                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2538                 scsi_synchronize_cache(&ccb.csio,
2539                                        /*retries*/1,
2540                                        /*cbfcnp*/dadone,
2541                                        MSG_SIMPLE_Q_TAG,
2542                                        /*begin_lba*/0, /* whole disk */
2543                                        /*lb_count*/0,
2544                                        SSD_FULL_SIZE,
2545                                        60 * 60 * 1000);
2546
2547                 xpt_polled_action(&ccb);
2548
2549                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2550                         if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2551                              CAM_SCSI_STATUS_ERROR)
2552                          && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2553                                 int error_code, sense_key, asc, ascq;
2554
2555                                 scsi_extract_sense(&ccb.csio.sense_data,
2556                                                    &error_code, &sense_key,
2557                                                    &asc, &ascq);
2558
2559                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2560                                         scsi_sense_print(&ccb.csio);
2561                         } else {
2562                                 xpt_print(periph->path, "Synchronize "
2563                                     "cache failed, status == 0x%x, scsi status "
2564                                     "== 0x%x\n", ccb.ccb_h.status,
2565                                     ccb.csio.scsi_status);
2566                         }
2567                 }
2568
2569                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2570                         cam_release_devq(ccb.ccb_h.path,
2571                                          /*relsim_flags*/0,
2572                                          /*reduction*/0,
2573                                          /*timeout*/0,
2574                                          /*getcount_only*/0);
2575                 cam_periph_unlock(periph);
2576         }
2577 }
2578
2579 #else /* !_KERNEL */
2580
2581 /*
2582  * XXX This is only left out of the kernel build to silence warnings.  If,
2583  * for some reason this function is used in the kernel, the ifdefs should
2584  * be moved so it is included both in the kernel and userland.
2585  */
2586 void
2587 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2588                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2589                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2590                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2591                  u_int32_t timeout)
2592 {
2593         struct scsi_format_unit *scsi_cmd;
2594
2595         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2596         scsi_cmd->opcode = FORMAT_UNIT;
2597         scsi_cmd->byte2 = byte2;
2598         scsi_ulto2b(ileave, scsi_cmd->interleave);
2599
2600         cam_fill_csio(csio,
2601                       retries,
2602                       cbfcnp,
2603                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2604                       tag_action,
2605                       data_ptr,
2606                       dxfer_len,
2607                       sense_len,
2608                       sizeof(*scsi_cmd),
2609                       timeout);
2610 }
2611
2612 #endif /* _KERNEL */