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                 xpt_release_ccb(ccb);
 995
 996         }
 997
 998         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
 999                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
1000                         daprevent(periph, PR_ALLOW);
1001                 /*
1002                  * If we've got removeable media, mark the blocksize as
1003                  * unavailable, since it could change when new media is
1004                  * inserted.
1005                  */
1006                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
1007         }
1008
1009         softc->flags &= ~DA_FLAG_OPEN;
1010         cam_periph_unhold(periph);
1011         cam_periph_unlock(periph);
1012         cam_periph_release(periph);
1013         return (0);
1014 }
1015
1016 /*
1017  * Actually translate the requested transfer into one the physical driver
1018  * can understand.  The transfer is described by a buf and will include
1019  * only one physical transfer.
1020  */
1021 static void
1022 dastrategy(struct bio *bp)
1023 {
1024         struct cam_periph *periph;
1025         struct da_softc *softc;
1026
1027         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1028         if (periph == NULL) {
1029                 biofinish(bp, NULL, ENXIO);
1030                 return;
1031         }
1032         softc = (struct da_softc *)periph->softc;
1033
1034         cam_periph_lock(periph);
1035
1036         /*
1037          * If the device has been made invalid, error out
1038          */
1039         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
1040                 cam_periph_unlock(periph);
1041                 biofinish(bp, NULL, ENXIO);
1042                 return;
1043         }
1044
1045         /*
1046          * Place it in the queue of disk activities for this disk
1047          */
1048         bioq_disksort(&softc->bio_queue, bp);
1049
1050         /*
1051          * Schedule ourselves for performing the work.
1052          */
1053         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1054         cam_periph_unlock(periph);
1055
1056         return;
1057 }
1058
1059 static int
1060 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
1061 {
1062         struct      cam_periph *periph;
1063         struct      da_softc *softc;
1064         u_int       secsize;
1065         struct      ccb_scsiio csio;
1066         struct      disk *dp;
1067
1068         dp = arg;
1069         periph = dp->d_drv1;
1070         if (periph == NULL)
1071                 return (ENXIO);
1072         softc = (struct da_softc *)periph->softc;
1073         cam_periph_lock(periph);
1074         secsize = softc->params.secsize;
1075
1076         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1077                 cam_periph_unlock(periph);
1078                 return (ENXIO);
1079         }
1080
1081         if (length > 0) {
1082                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1083                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1084                 scsi_read_write(&csio,
1085                                 /*retries*/1,
1086                                 dadone,
1087                                 MSG_ORDERED_Q_TAG,
1088                                 /*read*/FALSE,
1089                                 /*byte2*/0,
1090                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
1091                                 offset / secsize,
1092                                 length / secsize,
1093                                 /*data_ptr*/(u_int8_t *) virtual,
1094                                 /*dxfer_len*/length,
1095                                 /*sense_len*/SSD_FULL_SIZE,
1096                                 da_default_timeout * 1000);
1097                 xpt_polled_action((union ccb *)&csio);
1098                 cam_periph_unlock(periph);
1099
1100                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1101                         printf("Aborting dump due to I/O error.\n");
1102                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1103                              CAM_SCSI_STATUS_ERROR)
1104                                 scsi_sense_print(&csio);
1105                         else
1106                                 printf("status == 0x%x, scsi status == 0x%x\n",
1107                                        csio.ccb_h.status, csio.scsi_status);
1108                         return(EIO);
1109                 }
1110                 return(0);
1111         }
1112
1113         /*
1114          * Sync the disk cache contents to the physical media.
1115          */
1116         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
1117
1118                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1119                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
1120                 scsi_synchronize_cache(&csio,
1121                                        /*retries*/1,
1122                                        /*cbfcnp*/dadone,
1123                                        MSG_SIMPLE_Q_TAG,
1124                                        /*begin_lba*/0,/* Cover the whole disk */
1125                                        /*lb_count*/0,
1126                                        SSD_FULL_SIZE,
1127                                        5 * 60 * 1000);
1128                 xpt_polled_action((union ccb *)&csio);
1129
1130                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1131                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
1132                              CAM_SCSI_STATUS_ERROR) {
1133                                 int asc, ascq;
1134                                 int sense_key, error_code;
1135
1136                                 scsi_extract_sense_len(&csio.sense_data,
1137                                     csio.sense_len - csio.sense_resid,
1138                                     &error_code, &sense_key, &asc, &ascq,
1139                                     /*show_errors*/ 1);
1140                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
1141                                         scsi_sense_print(&csio);
1142                         } else {
1143                                 xpt_print(periph->path, "Synchronize cache "
1144                                     "failed, status == 0x%x, scsi status == "
1145                                     "0x%x\n", csio.ccb_h.status,
1146                                     csio.scsi_status);
1147                         }
1148                 }
1149         }
1150         cam_periph_unlock(periph);
1151         return (0);
1152 }
1153
1154 static int
1155 dagetattr(struct bio *bp)
1156 {
1157         int ret = -1;
1158         struct cam_periph *periph;
1159
1160         if (bp->bio_disk == NULL || bp->bio_disk->d_drv1 == NULL)
1161                 return ENXIO;
1162         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
1163         if (periph->path == NULL)
1164                 return ENXIO;
1165
1166         ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
1167             periph->path);
1168         if (ret == 0)
1169                 bp->bio_completed = bp->bio_length;
1170         return ret;
1171 }
1172
1173 static void
1174 dainit(void)
1175 {
1176         cam_status status;
1177
1178         /*
1179          * Install a global async callback.  This callback will
1180          * receive async callbacks like "new device found".
1181          */
1182         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
1183
1184         if (status != CAM_REQ_CMP) {
1185                 printf("da: Failed to attach master async callback "
1186                        "due to status 0x%x!\n", status);
1187         } else if (da_send_ordered) {
1188
1189                 /* Register our shutdown event handler */
1190                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
1191                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
1192                     printf("dainit: shutdown event registration failed!\n");
1193         }
1194 }
1195
1196 static void
1197 daoninvalidate(struct cam_periph *periph)
1198 {
1199         struct da_softc *softc;
1200
1201         softc = (struct da_softc *)periph->softc;
1202
1203         /*
1204          * De-register any async callbacks.
1205          */
1206         xpt_register_async(0, daasync, periph, periph->path);
1207
1208         softc->flags |= DA_FLAG_PACK_INVALID;
1209
1210         /*
1211          * Return all queued I/O with ENXIO.
1212          * XXX Handle any transactions queued to the card
1213          *     with XPT_ABORT_CCB.
1214          */
1215         bioq_flush(&softc->bio_queue, NULL, ENXIO);
1216
1217         disk_gone(softc->disk);
1218         xpt_print(periph->path, "lost device - %d outstanding, %d refs\n",
1219                   softc->outstanding_cmds, periph->refcount);
1220 }
1221
1222 static void
1223 dacleanup(struct cam_periph *periph)
1224 {
1225         struct da_softc *softc;
1226
1227         softc = (struct da_softc *)periph->softc;
1228
1229         xpt_print(periph->path, "removing device entry\n");
1230         cam_periph_unlock(periph);
1231
1232         /*
1233          * If we can't free the sysctl tree, oh well...
1234          */
1235         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
1236             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
1237                 xpt_print(periph->path, "can't remove sysctl context\n");
1238         }
1239
1240         disk_destroy(softc->disk);
1241         callout_drain(&softc->sendordered_c);
1242         free(softc, M_DEVBUF);
1243         cam_periph_lock(periph);
1244 }
1245
1246 static void
1247 daasync(void *callback_arg, u_int32_t code,
1248         struct cam_path *path, void *arg)
1249 {
1250         struct cam_periph *periph;
1251
1252         periph = (struct cam_periph *)callback_arg;
1253         switch (code) {
1254         case AC_FOUND_DEVICE:
1255         {
1256                 struct ccb_getdev *cgd;
1257                 cam_status status;
1258
1259                 cgd = (struct ccb_getdev *)arg;
1260                 if (cgd == NULL)
1261                         break;
1262
1263                 if (cgd->protocol != PROTO_SCSI)
1264                         break;
1265
1266                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1267                     && SID_TYPE(&cgd->inq_data) != T_RBC
1268                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1269                         break;
1270
1271                 /*
1272                  * Allocate a peripheral instance for
1273                  * this device and start the probe
1274                  * process.
1275                  */
1276                 status = cam_periph_alloc(daregister, daoninvalidate,
1277                                           dacleanup, dastart,
1278                                           "da", CAM_PERIPH_BIO,
1279                                           cgd->ccb_h.path, daasync,
1280                                           AC_FOUND_DEVICE, cgd);
1281
1282                 if (status != CAM_REQ_CMP
1283                  && status != CAM_REQ_INPROG)
1284                         printf("daasync: Unable to attach to new device "
1285                                 "due to status 0x%x\n", status);
1286                 return;
1287         }
1288         case AC_ADVINFO_CHANGED:
1289         {
1290                 uintptr_t buftype;
1291
1292                 buftype = (uintptr_t)arg;
1293                 if (buftype == CDAI_TYPE_PHYS_PATH) {
1294                         struct da_softc *softc;
1295
1296                         softc = periph->softc;
1297                         disk_attr_changed(softc->disk, "GEOM::physpath",
1298                                           M_NOWAIT);
1299                 }
1300                 break;
1301         }
1302         case AC_SENT_BDR:
1303         case AC_BUS_RESET:
1304         {
1305                 struct da_softc *softc;
1306                 struct ccb_hdr *ccbh;
1307
1308                 softc = (struct da_softc *)periph->softc;
1309                 /*
1310                  * Don't fail on the expected unit attention
1311                  * that will occur.
1312                  */
1313                 softc->flags |= DA_FLAG_RETRY_UA;
1314                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1315                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1316                 break;
1317         }
1318         default:
1319                 break;
1320         }
1321         cam_periph_async(periph, code, path, arg);
1322 }
1323
1324 static void
1325 dasysctlinit(void *context, int pending)
1326 {
1327         struct cam_periph *periph;
1328         struct da_softc *softc;
1329         char tmpstr[80], tmpstr2[80];
1330         struct ccb_trans_settings cts;
1331
1332         periph = (struct cam_periph *)context;
1333         /*
1334          * periph was held for us when this task was enqueued
1335          */
1336         if (periph->flags & CAM_PERIPH_INVALID) {
1337                 cam_periph_release(periph);
1338                 return;
1339         }
1340
1341         softc = (struct da_softc *)periph->softc;
1342         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1343         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1344
1345         sysctl_ctx_init(&softc->sysctl_ctx);
1346         softc->flags |= DA_FLAG_SCTX_INIT;
1347         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1348                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1349                 CTLFLAG_RD, 0, tmpstr);
1350         if (softc->sysctl_tree == NULL) {
1351                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1352                 cam_periph_release(periph);
1353                 return;
1354         }
1355
1356         /*
1357          * Now register the sysctl handler, so the user can change the value on
1358          * the fly.
1359          */
1360         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1361                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1362                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1363                 "Minimum CDB size");
1364
1365         SYSCTL_ADD_INT(&softc->sysctl_ctx,
1366                        SYSCTL_CHILDREN(softc->sysctl_tree),
1367                        OID_AUTO,
1368                        "error_inject",
1369                        CTLFLAG_RW,
1370                        &softc->error_inject,
1371                        0,
1372                        "error_inject leaf");
1373
1374
1375         /*
1376          * Add some addressing info.
1377          */
1378         memset(&cts, 0, sizeof (cts));
1379         xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1380         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1381         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1382         cam_periph_lock(periph);
1383         xpt_action((union ccb *)&cts);
1384         cam_periph_unlock(periph);
1385         if (cts.ccb_h.status != CAM_REQ_CMP) {
1386                 cam_periph_release(periph);
1387                 return;
1388         }
1389         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1390                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1391                 if (fc->valid & CTS_FC_VALID_WWPN) {
1392                         softc->wwpn = fc->wwpn;
1393                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1394                             SYSCTL_CHILDREN(softc->sysctl_tree),
1395                             OID_AUTO, "wwpn", CTLFLAG_RD,
1396                             &softc->wwpn, "World Wide Port Name");
1397                 }
1398         }
1399         cam_periph_release(periph);
1400 }
1401
1402 static int
1403 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1404 {
1405         int error, value;
1406
1407         value = *(int *)arg1;
1408
1409         error = sysctl_handle_int(oidp, &value, 0, req);
1410
1411         if ((error != 0)
1412          || (req->newptr == NULL))
1413                 return (error);
1414
1415         /*
1416          * Acceptable values here are 6, 10, 12 or 16.
1417          */
1418         if (value < 6)
1419                 value = 6;
1420         else if ((value > 6)
1421               && (value <= 10))
1422                 value = 10;
1423         else if ((value > 10)
1424               && (value <= 12))
1425                 value = 12;
1426         else if (value > 12)
1427                 value = 16;
1428
1429         *(int *)arg1 = value;
1430
1431         return (0);
1432 }
1433
1434 static cam_status
1435 daregister(struct cam_periph *periph, void *arg)
1436 {
1437         struct da_softc *softc;
1438         struct ccb_pathinq cpi;
1439         struct ccb_getdev *cgd;
1440         char tmpstr[80];
1441         caddr_t match;
1442
1443         cgd = (struct ccb_getdev *)arg;
1444         if (periph == NULL) {
1445                 printf("daregister: periph was NULL!!\n");
1446                 return(CAM_REQ_CMP_ERR);
1447         }
1448
1449         if (cgd == NULL) {
1450                 printf("daregister: no getdev CCB, can't register device\n");
1451                 return(CAM_REQ_CMP_ERR);
1452         }
1453
1454         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1455             M_NOWAIT|M_ZERO);
1456
1457         if (softc == NULL) {
1458                 printf("daregister: Unable to probe new device. "
1459                        "Unable to allocate softc\n");
1460                 return(CAM_REQ_CMP_ERR);
1461         }
1462
1463         LIST_INIT(&softc->pending_ccbs);
1464         softc->state = DA_STATE_PROBE;
1465         bioq_init(&softc->bio_queue);
1466         if (SID_IS_REMOVABLE(&cgd->inq_data))
1467                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1468         if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1469                 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1470
1471         periph->softc = softc;
1472
1473         /*
1474          * See if this device has any quirks.
1475          */
1476         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1477                                (caddr_t)da_quirk_table,
1478                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1479                                sizeof(*da_quirk_table), scsi_inquiry_match);
1480
1481         if (match != NULL)
1482                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1483         else
1484                 softc->quirks = DA_Q_NONE;
1485
1486         /* Check if the SIM does not want 6 byte commands */
1487         bzero(&cpi, sizeof(cpi));
1488         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1489         cpi.ccb_h.func_code = XPT_PATH_INQ;
1490         xpt_action((union ccb *)&cpi);
1491         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1492                 softc->quirks |= DA_Q_NO_6_BYTE;
1493
1494         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1495
1496         /*
1497          * Take an exclusive refcount on the periph while dastart is called
1498          * to finish the probe.  The reference will be dropped in dadone at
1499          * the end of probe.
1500          */
1501         (void)cam_periph_hold(periph, PRIBIO);
1502
1503         /*
1504          * Schedule a periodic event to occasionally send an
1505          * ordered tag to a device.
1506          */
1507         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1508         callout_reset(&softc->sendordered_c,
1509             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
1510             dasendorderedtag, softc);
1511
1512         mtx_unlock(periph->sim->mtx);
1513         /*
1514          * RBC devices don't have to support READ(6), only READ(10).
1515          */
1516         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1517                 softc->minimum_cmd_size = 10;
1518         else
1519                 softc->minimum_cmd_size = 6;
1520
1521         /*
1522          * Load the user's default, if any.
1523          */
1524         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1525                  periph->unit_number);
1526         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1527
1528         /*
1529          * 6, 10, 12 and 16 are the currently permissible values.
1530          */
1531         if (softc->minimum_cmd_size < 6)
1532                 softc->minimum_cmd_size = 6;
1533         else if ((softc->minimum_cmd_size > 6)
1534               && (softc->minimum_cmd_size <= 10))
1535                 softc->minimum_cmd_size = 10;
1536         else if ((softc->minimum_cmd_size > 10)
1537               && (softc->minimum_cmd_size <= 12))
1538                 softc->minimum_cmd_size = 12;
1539         else if (softc->minimum_cmd_size > 12)
1540                 softc->minimum_cmd_size = 16;
1541
1542         /* Predict whether device may support READ CAPACITY(16). */
1543         if (SID_ANSI_REV(&cgd->inq_data) >= SCSI_REV_SPC3) {
1544                 softc->flags |= DA_FLAG_CAN_RC16;
1545                 softc->state = DA_STATE_PROBE2;
1546         }
1547
1548         /*
1549          * Register this media as a disk.
1550          */
1551         softc->disk = disk_alloc();
1552         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1553                           periph->unit_number, 0,
1554                           DEVSTAT_BS_UNAVAILABLE,
1555                           SID_TYPE(&cgd->inq_data) |
1556                           XPORT_DEVSTAT_TYPE(cpi.transport),
1557                           DEVSTAT_PRIORITY_DISK);
1558         softc->disk->d_open = daopen;
1559         softc->disk->d_close = daclose;
1560         softc->disk->d_strategy = dastrategy;
1561         softc->disk->d_dump = dadump;
1562         softc->disk->d_getattr = dagetattr;
1563         softc->disk->d_name = "da";
1564         softc->disk->d_drv1 = periph;
1565         if (cpi.maxio == 0)
1566                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1567         else if (cpi.maxio > MAXPHYS)
1568                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1569         else
1570                 softc->disk->d_maxsize = cpi.maxio;
1571         softc->disk->d_unit = periph->unit_number;
1572         softc->disk->d_flags = 0;
1573         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1574                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1575         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1576             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1577         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1578         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1579             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1580             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1581         softc->disk->d_hba_vendor = cpi.hba_vendor;
1582         softc->disk->d_hba_device = cpi.hba_device;
1583         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1584         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1585         disk_create(softc->disk, DISK_VERSION);
1586         mtx_lock(periph->sim->mtx);
1587
1588         /*
1589          * Add async callbacks for events of interest.
1590          * I don't bother checking if this fails as,
1591          * in most cases, the system will function just
1592          * fine without them and the only alternative
1593          * would be to not attach the device on failure.
1594          */
1595         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET
1596                          | AC_LOST_DEVICE | AC_ADVINFO_CHANGED,
1597                            daasync, periph, periph->path);
1598
1599         /*
1600          * Emit an attribute changed notification just in case
1601          * physical path information arrived before our async
1602          * event handler was registered, but after anyone attaching
1603          * to our disk device polled it.
1604          */
1605         disk_attr_changed(softc->disk, "GEOM::physpath", M_NOWAIT);
1606
1607         xpt_schedule(periph, CAM_PRIORITY_DEV);
1608
1609         return(CAM_REQ_CMP);
1610 }
1611
1612 static void
1613 dastart(struct cam_periph *periph, union ccb *start_ccb)
1614 {
1615         struct da_softc *softc;
1616
1617         softc = (struct da_softc *)periph->softc;
1618
1619         switch (softc->state) {
1620         case DA_STATE_NORMAL:
1621         {
1622                 /* Pull a buffer from the queue and get going on it */
1623                 struct bio *bp;
1624
1625                 /*
1626                  * See if there is a buf with work for us to do..
1627                  */
1628                 bp = bioq_first(&softc->bio_queue);
1629                 if (periph->immediate_priority <= periph->pinfo.priority) {
1630                         CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1631                                         ("queuing for immediate ccb\n"));
1632                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1633                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1634                                           periph_links.sle);
1635                         periph->immediate_priority = CAM_PRIORITY_NONE;
1636                         wakeup(&periph->ccb_list);
1637                 } else if (bp == NULL) {
1638                         xpt_release_ccb(start_ccb);
1639                 } else {
1640                         u_int8_t tag_code;
1641
1642                         bioq_remove(&softc->bio_queue, bp);
1643
1644                         if ((bp->bio_flags & BIO_ORDERED) != 0
1645                          || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1646                                 softc->flags &= ~DA_FLAG_NEED_OTAG;
1647                                 softc->ordered_tag_count++;
1648                                 tag_code = MSG_ORDERED_Q_TAG;
1649                         } else {
1650                                 tag_code = MSG_SIMPLE_Q_TAG;
1651                         }
1652                         switch (bp->bio_cmd) {
1653                         case BIO_READ:
1654                         case BIO_WRITE:
1655                                 scsi_read_write(&start_ccb->csio,
1656                                                 /*retries*/da_retry_count,
1657                                                 /*cbfcnp*/dadone,
1658                                                 /*tag_action*/tag_code,
1659                                                 /*read_op*/bp->bio_cmd
1660                                                         == BIO_READ,
1661                                                 /*byte2*/0,
1662                                                 softc->minimum_cmd_size,
1663                                                 /*lba*/bp->bio_pblkno,
1664                                                 /*block_count*/bp->bio_bcount /
1665                                                 softc->params.secsize,
1666                                                 /*data_ptr*/ bp->bio_data,
1667                                                 /*dxfer_len*/ bp->bio_bcount,
1668                                                 /*sense_len*/SSD_FULL_SIZE,
1669                                                 da_default_timeout * 1000);
1670                                 break;
1671                         case BIO_FLUSH:
1672                                 /*
1673                                  * BIO_FLUSH doesn't currently communicate
1674                                  * range data, so we synchronize the cache
1675                                  * over the whole disk.  We also force
1676                                  * ordered tag semantics the flush applies
1677                                  * to all previously queued I/O.
1678                                  */
1679                                 scsi_synchronize_cache(&start_ccb->csio,
1680                                                        /*retries*/1,
1681                                                        /*cbfcnp*/dadone,
1682                                                        MSG_ORDERED_Q_TAG,
1683                                                        /*begin_lba*/0,
1684                                                        /*lb_count*/0,
1685                                                        SSD_FULL_SIZE,
1686                                                        da_default_timeout*1000);
1687                                 break;
1688                         }
1689                         start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1690
1691                         /*
1692                          * Block out any asyncronous callbacks
1693                          * while we touch the pending ccb list.
1694                          */
1695                         LIST_INSERT_HEAD(&softc->pending_ccbs,
1696                                          &start_ccb->ccb_h, periph_links.le);
1697                         softc->outstanding_cmds++;
1698
1699                         /* We expect a unit attention from this device */
1700                         if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1701                                 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1702                                 softc->flags &= ~DA_FLAG_RETRY_UA;
1703                         }
1704
1705                         start_ccb->ccb_h.ccb_bp = bp;
1706                         bp = bioq_first(&softc->bio_queue);
1707
1708                         xpt_action(start_ccb);
1709                 }
1710
1711                 if (bp != NULL) {
1712                         /* Have more work to do, so ensure we stay scheduled */
1713                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1714                 }
1715                 break;
1716         }
1717         case DA_STATE_PROBE:
1718         {
1719                 struct ccb_scsiio *csio;
1720                 struct scsi_read_capacity_data *rcap;
1721
1722                 rcap = (struct scsi_read_capacity_data *)
1723                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1724                 if (rcap == NULL) {
1725                         printf("dastart: Couldn't malloc read_capacity data\n");
1726                         /* da_free_periph??? */
1727                         break;
1728                 }
1729                 csio = &start_ccb->csio;
1730                 scsi_read_capacity(csio,
1731                                    /*retries*/4,
1732                                    dadone,
1733                                    MSG_SIMPLE_Q_TAG,
1734                                    rcap,
1735                                    SSD_FULL_SIZE,
1736                                    /*timeout*/5000);
1737                 start_ccb->ccb_h.ccb_bp = NULL;
1738                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1739                 xpt_action(start_ccb);
1740                 break;
1741         }
1742         case DA_STATE_PROBE2:
1743         {
1744                 struct ccb_scsiio *csio;
1745                 struct scsi_read_capacity_data_long *rcaplong;
1746
1747                 rcaplong = (struct scsi_read_capacity_data_long *)
1748                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1749                 if (rcaplong == NULL) {
1750                         printf("dastart: Couldn't malloc read_capacity data\n");
1751                         /* da_free_periph??? */
1752                         break;
1753                 }
1754                 csio = &start_ccb->csio;
1755                 scsi_read_capacity_16(csio,
1756                                       /*retries*/ 4,
1757                                       /*cbfcnp*/ dadone,
1758                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
1759                                       /*lba*/ 0,
1760                                       /*reladr*/ 0,
1761                                       /*pmi*/ 0,
1762                                       rcaplong,
1763                                       /*sense_len*/ SSD_FULL_SIZE,
1764                                       /*timeout*/ 60000);
1765                 start_ccb->ccb_h.ccb_bp = NULL;
1766                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1767                 xpt_action(start_ccb);
1768                 break;
1769         }
1770         }
1771 }
1772
1773 static int
1774 cmd6workaround(union ccb *ccb)
1775 {
1776         struct scsi_rw_6 cmd6;
1777         struct scsi_rw_10 *cmd10;
1778         struct da_softc *softc;
1779         u_int8_t *cdb;
1780         int frozen;
1781
1782         cdb = ccb->csio.cdb_io.cdb_bytes;
1783
1784         /* Translation only possible if CDB is an array and cmd is R/W6 */
1785         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1786             (*cdb != READ_6 && *cdb != WRITE_6))
1787                 return 0;
1788
1789         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1790             "increasing minimum_cmd_size to 10.\n");
1791         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1792         softc->minimum_cmd_size = 10;
1793
1794         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1795         cmd10 = (struct scsi_rw_10 *)cdb;
1796         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1797         cmd10->byte2 = 0;
1798         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1799         cmd10->reserved = 0;
1800         scsi_ulto2b(cmd6.length, cmd10->length);
1801         cmd10->control = cmd6.control;
1802         ccb->csio.cdb_len = sizeof(*cmd10);
1803
1804         /* Requeue request, unfreezing queue if necessary */
1805         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1806         ccb->ccb_h.status = CAM_REQUEUE_REQ;
1807         xpt_action(ccb);
1808         if (frozen) {
1809                 cam_release_devq(ccb->ccb_h.path,
1810                                  /*relsim_flags*/0,
1811                                  /*reduction*/0,
1812                                  /*timeout*/0,
1813                                  /*getcount_only*/0);
1814         }
1815         return (ERESTART);
1816 }
1817
1818 static void
1819 dadone(struct cam_periph *periph, union ccb *done_ccb)
1820 {
1821         struct da_softc *softc;
1822         struct ccb_scsiio *csio;
1823         u_int32_t  priority;
1824
1825         softc = (struct da_softc *)periph->softc;
1826         priority = done_ccb->ccb_h.pinfo.priority;
1827         csio = &done_ccb->csio;
1828         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1829         case DA_CCB_BUFFER_IO:
1830         {
1831                 struct bio *bp;
1832
1833                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1834                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1835                         int error;
1836                         int sf;
1837
1838                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1839                                 sf = SF_RETRY_UA;
1840                         else
1841                                 sf = 0;
1842
1843                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1844                         if (error == ERESTART) {
1845                                 /*
1846                                  * A retry was scheuled, so
1847                                  * just return.
1848                                  */
1849                                 return;
1850                         }
1851                         if (error != 0) {
1852                                 int queued_error;
1853
1854                                 /*
1855                                  * return all queued I/O with EIO, so that
1856                                  * the client can retry these I/Os in the
1857                                  * proper order should it attempt to recover.
1858                                  */
1859                                 queued_error = EIO;
1860
1861                                 if (error == ENXIO
1862                                  && (softc->flags & DA_FLAG_PACK_INVALID)== 0) {
1863                                         /*
1864                                          * Catastrophic error.  Mark our pack as
1865                                          * invalid.
1866                                          */
1867                                         /*
1868                                          * XXX See if this is really a media
1869                                          * XXX change first?
1870                                          */
1871                                         xpt_print(periph->path,
1872                                             "Invalidating pack\n");
1873                                         softc->flags |= DA_FLAG_PACK_INVALID;
1874                                         queued_error = ENXIO;
1875                                 }
1876                                 bioq_flush(&softc->bio_queue, NULL,
1877                                            queued_error);
1878                                 bp->bio_error = error;
1879                                 bp->bio_resid = bp->bio_bcount;
1880                                 bp->bio_flags |= BIO_ERROR;
1881                         } else {
1882                                 bp->bio_resid = csio->resid;
1883                                 bp->bio_error = 0;
1884                                 if (bp->bio_resid != 0)
1885                                         bp->bio_flags |= BIO_ERROR;
1886                         }
1887                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1888                                 cam_release_devq(done_ccb->ccb_h.path,
1889                                                  /*relsim_flags*/0,
1890                                                  /*reduction*/0,
1891                                                  /*timeout*/0,
1892                                                  /*getcount_only*/0);
1893                 } else {
1894                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1895                                 panic("REQ_CMP with QFRZN");
1896                         bp->bio_resid = csio->resid;
1897                         if (csio->resid > 0)
1898                                 bp->bio_flags |= BIO_ERROR;
1899                         if (softc->error_inject != 0) {
1900                                 bp->bio_error = softc->error_inject;
1901                                 bp->bio_resid = bp->bio_bcount;
1902                                 bp->bio_flags |= BIO_ERROR;
1903                                 softc->error_inject = 0;
1904                         }
1905
1906                 }
1907
1908                 /*
1909                  * Block out any asyncronous callbacks
1910                  * while we touch the pending ccb list.
1911                  */
1912                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1913                 softc->outstanding_cmds--;
1914                 if (softc->outstanding_cmds == 0)
1915                         softc->flags |= DA_FLAG_WENT_IDLE;
1916
1917                 if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
1918                         xpt_print(periph->path, "oustanding %d\n",
1919                                   softc->outstanding_cmds);
1920                 }
1921
1922                 biodone(bp);
1923                 break;
1924         }
1925         case DA_CCB_PROBE:
1926         case DA_CCB_PROBE2:
1927         {
1928                 struct     scsi_read_capacity_data *rdcap;
1929                 struct     scsi_read_capacity_data_long *rcaplong;
1930                 char       announce_buf[80];
1931
1932                 rdcap = NULL;
1933                 rcaplong = NULL;
1934                 if (softc->state == DA_STATE_PROBE)
1935                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1936                 else
1937                         rcaplong = (struct scsi_read_capacity_data_long *)
1938                                 csio->data_ptr;
1939
1940                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1941                         struct disk_params *dp;
1942                         uint32_t block_size;
1943                         uint64_t maxsector;
1944                         u_int lbppbe;   /* LB per physical block exponent. */
1945                         u_int lalba;    /* Lowest aligned LBA. */
1946
1947                         if (softc->state == DA_STATE_PROBE) {
1948                                 block_size = scsi_4btoul(rdcap->length);
1949                                 maxsector = scsi_4btoul(rdcap->addr);
1950                                 lbppbe = 0;
1951                                 lalba = 0;
1952
1953                                 /*
1954                                  * According to SBC-2, if the standard 10
1955                                  * byte READ CAPACITY command returns 2^32,
1956                                  * we should issue the 16 byte version of
1957                                  * the command, since the device in question
1958                                  * has more sectors than can be represented
1959                                  * with the short version of the command.
1960                                  */
1961                                 if (maxsector == 0xffffffff) {
1962                                         softc->state = DA_STATE_PROBE2;
1963                                         free(rdcap, M_SCSIDA);
1964                                         xpt_release_ccb(done_ccb);
1965                                         xpt_schedule(periph, priority);
1966                                         return;
1967                                 }
1968                         } else {
1969                                 block_size = scsi_4btoul(rcaplong->length);
1970                                 maxsector = scsi_8btou64(rcaplong->addr);
1971                                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
1972                                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
1973                         }
1974
1975                         /*
1976                          * Because GEOM code just will panic us if we
1977                          * give them an 'illegal' value we'll avoid that
1978                          * here.
1979                          */
1980                         if (block_size == 0 && maxsector == 0) {
1981                                 snprintf(announce_buf, sizeof(announce_buf),
1982                                         "0MB (no media?)");
1983                         } else if (block_size >= MAXPHYS || block_size == 0) {
1984                                 xpt_print(periph->path,
1985                                     "unsupportable block size %ju\n",
1986                                     (uintmax_t) block_size);
1987                                 announce_buf[0] = '\0';
1988                                 cam_periph_invalidate(periph);
1989                         } else {
1990                                 dasetgeom(periph, block_size, maxsector,
1991                                     lbppbe, lalba & SRC16_LALBA);
1992                                 if (lalba & SRC16_LBPME)
1993                                         softc->flags |= DA_FLAG_CAN_LBPME;
1994                                 else
1995                                         softc->flags &= ~DA_FLAG_CAN_LBPME;
1996                                 dp = &softc->params;
1997                                 snprintf(announce_buf, sizeof(announce_buf),
1998                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
1999                                         "%dC)", (uintmax_t)
2000                                         (((uintmax_t)dp->secsize *
2001                                         dp->sectors) / (1024*1024)),
2002                                         (uintmax_t)dp->sectors,
2003                                         dp->secsize, dp->heads,
2004                                         dp->secs_per_track, dp->cylinders);
2005                         }
2006                 } else {
2007                         int     error;
2008
2009                         announce_buf[0] = '\0';
2010
2011                         /*
2012                          * Retry any UNIT ATTENTION type errors.  They
2013                          * are expected at boot.
2014                          */
2015                         error = daerror(done_ccb, CAM_RETRY_SELTO,
2016                                         SF_RETRY_UA|SF_NO_PRINT);
2017                         if (error == ERESTART) {
2018                                 /*
2019                                  * A retry was scheuled, so
2020                                  * just return.
2021                                  */
2022                                 return;
2023                         } else if (error != 0) {
2024                                 struct scsi_sense_data *sense;
2025                                 int asc, ascq;
2026                                 int sense_key, error_code;
2027                                 int have_sense;
2028                                 cam_status status;
2029                                 struct ccb_getdev cgd;
2030
2031                                 /* Don't wedge this device's queue */
2032                                 status = done_ccb->ccb_h.status;
2033                                 if ((status & CAM_DEV_QFRZN) != 0)
2034                                         cam_release_devq(done_ccb->ccb_h.path,
2035                                                          /*relsim_flags*/0,
2036                                                          /*reduction*/0,
2037                                                          /*timeout*/0,
2038                                                          /*getcount_only*/0);
2039
2040
2041                                 xpt_setup_ccb(&cgd.ccb_h,
2042                                               done_ccb->ccb_h.path,
2043                                               CAM_PRIORITY_NORMAL);
2044                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2045                                 xpt_action((union ccb *)&cgd);
2046
2047                                 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
2048                                  || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
2049                                  || ((status & CAM_AUTOSNS_VALID) == 0))
2050                                         have_sense = FALSE;
2051                                 else
2052                                         have_sense = TRUE;
2053
2054                                 if (have_sense) {
2055                                         sense = &csio->sense_data;
2056                                         scsi_extract_sense_len(sense,
2057                                             csio->sense_len - csio->sense_resid,
2058                                             &error_code, &sense_key, &asc,
2059                                             &ascq, /*show_errors*/ 1);
2060                                 }
2061                                 /*
2062                                  * If we tried READ CAPACITY(16) and failed,
2063                                  * fallback to READ CAPACITY(10).
2064                                  */
2065                                 if ((softc->state == DA_STATE_PROBE2) &&
2066                                     (softc->flags & DA_FLAG_CAN_RC16) &&
2067                                     (((csio->ccb_h.status & CAM_STATUS_MASK) ==
2068                                         CAM_REQ_INVALID) ||
2069                                      ((have_sense) &&
2070                                       (error_code == SSD_CURRENT_ERROR) &&
2071                                       (sense_key == SSD_KEY_ILLEGAL_REQUEST)))) {
2072                                         softc->flags &= ~DA_FLAG_CAN_RC16;
2073                                         softc->state = DA_STATE_PROBE;
2074                                         free(rdcap, M_SCSIDA);
2075                                         xpt_release_ccb(done_ccb);
2076                                         xpt_schedule(periph, priority);
2077                                         return;
2078                                 } else
2079                                 /*
2080                                  * Attach to anything that claims to be a
2081                                  * direct access or optical disk device,
2082                                  * as long as it doesn't return a "Logical
2083                                  * unit not supported" (0x25) error.
2084                                  */
2085                                 if ((have_sense) && (asc != 0x25)
2086                                  && (error_code == SSD_CURRENT_ERROR)) {
2087                                         const char *sense_key_desc;
2088                                         const char *asc_desc;
2089
2090                                         scsi_sense_desc(sense_key, asc, ascq,
2091                                                         &cgd.inq_data,
2092                                                         &sense_key_desc,
2093                                                         &asc_desc);
2094                                         snprintf(announce_buf,
2095                                             sizeof(announce_buf),
2096                                                 "Attempt to query device "
2097                                                 "size failed: %s, %s",
2098                                                 sense_key_desc,
2099                                                 asc_desc);
2100                                 } else {
2101                                         if (have_sense)
2102                                                 scsi_sense_print(
2103                                                         &done_ccb->csio);
2104                                         else {
2105                                                 xpt_print(periph->path,
2106                                                     "got CAM status %#x\n",
2107                                                     done_ccb->ccb_h.status);
2108                                         }
2109
2110                                         xpt_print(periph->path, "fatal error, "
2111                                             "failed to attach to device\n");
2112
2113                                         /*
2114                                          * Free up resources.
2115                                          */
2116                                         cam_periph_invalidate(periph);
2117                                 }
2118                         }
2119                 }
2120                 free(csio->data_ptr, M_SCSIDA);
2121                 if (announce_buf[0] != '\0') {
2122                         /*
2123                          * Create our sysctl variables, now that we know
2124                          * we have successfully attached.
2125                          */
2126                         /* increase the refcount */
2127                         if (cam_periph_acquire(periph) == CAM_REQ_CMP) {
2128                                 taskqueue_enqueue(taskqueue_thread,
2129                                                   &softc->sysctl_task);
2130                                 xpt_announce_periph(periph, announce_buf);
2131                         } else {
2132                                 xpt_print(periph->path, "fatal error, "
2133                                     "could not acquire reference count\n");
2134                         }
2135
2136                 }
2137                 softc->state = DA_STATE_NORMAL;
2138                 /*
2139                  * Since our peripheral may be invalidated by an error
2140                  * above or an external event, we must release our CCB
2141                  * before releasing the probe lock on the peripheral.
2142                  * The peripheral will only go away once the last lock
2143                  * is removed, and we need it around for the CCB release
2144                  * operation.
2145                  */
2146                 xpt_release_ccb(done_ccb);
2147                 cam_periph_unhold(periph);
2148                 return;
2149         }
2150         case DA_CCB_WAITING:
2151         {
2152                 /* Caller will release the CCB */
2153                 wakeup(&done_ccb->ccb_h.cbfcnp);
2154                 return;
2155         }
2156         case DA_CCB_DUMP:
2157                 /* No-op.  We're polling */
2158                 return;
2159         default:
2160                 break;
2161         }
2162         xpt_release_ccb(done_ccb);
2163 }
2164
2165 static int
2166 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
2167 {
2168         struct da_softc   *softc;
2169         struct cam_periph *periph;
2170         int error;
2171
2172         periph = xpt_path_periph(ccb->ccb_h.path);
2173         softc = (struct da_softc *)periph->softc;
2174
2175         /*
2176          * Automatically detect devices that do not support
2177          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
2178          */
2179         error = 0;
2180         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
2181                 error = cmd6workaround(ccb);
2182         } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2183                    CAM_SCSI_STATUS_ERROR)
2184          && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
2185          && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
2186          && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
2187          && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2188                 int sense_key, error_code, asc, ascq;
2189
2190                 scsi_extract_sense(&ccb->csio.sense_data,
2191                                    &error_code, &sense_key, &asc, &ascq);
2192                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2193                         error = cmd6workaround(ccb);
2194         }
2195         if (error == ERESTART)
2196                 return (ERESTART);
2197
2198         /*
2199          * XXX
2200          * Until we have a better way of doing pack validation,
2201          * don't treat UAs as errors.
2202          */
2203         sense_flags |= SF_RETRY_UA;
2204         return(cam_periph_error(ccb, cam_flags, sense_flags,
2205                                 &softc->saved_ccb));
2206 }
2207
2208 static void
2209 daprevent(struct cam_periph *periph, int action)
2210 {
2211         struct  da_softc *softc;
2212         union   ccb *ccb;
2213         int     error;
2214
2215         softc = (struct da_softc *)periph->softc;
2216
2217         if (((action == PR_ALLOW)
2218           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
2219          || ((action == PR_PREVENT)
2220           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
2221                 return;
2222         }
2223
2224         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2225
2226         scsi_prevent(&ccb->csio,
2227                      /*retries*/1,
2228                      /*cbcfp*/dadone,
2229                      MSG_SIMPLE_Q_TAG,
2230                      action,
2231                      SSD_FULL_SIZE,
2232                      5000);
2233
2234         error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
2235                                   SF_RETRY_UA, softc->disk->d_devstat);
2236
2237         if (error == 0) {
2238                 if (action == PR_ALLOW)
2239                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
2240                 else
2241                         softc->flags |= DA_FLAG_PACK_LOCKED;
2242         }
2243
2244         xpt_release_ccb(ccb);
2245 }
2246
2247 static int
2248 dagetcapacity(struct cam_periph *periph)
2249 {
2250         struct da_softc *softc;
2251         union ccb *ccb;
2252         struct scsi_read_capacity_data *rcap;
2253         struct scsi_read_capacity_data_long *rcaplong;
2254         uint32_t block_len;
2255         uint64_t maxsector;
2256         int error, rc16failed;
2257         u_int32_t sense_flags;
2258         u_int lbppbe;   /* Logical blocks per physical block exponent. */
2259         u_int lalba;    /* Lowest aligned LBA. */
2260
2261         softc = (struct da_softc *)periph->softc;
2262         block_len = 0;
2263         maxsector = 0;
2264         lbppbe = 0;
2265         lalba = 0;
2266         error = 0;
2267         rc16failed = 0;
2268         sense_flags = SF_RETRY_UA;
2269         if (softc->flags & DA_FLAG_PACK_REMOVABLE)
2270                 sense_flags |= SF_NO_PRINT;
2271
2272         /* Do a read capacity */
2273         rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
2274                                                         M_SCSIDA,
2275                                                         M_NOWAIT | M_ZERO);
2276         if (rcap == NULL)
2277                 return (ENOMEM);
2278         rcaplong = (struct scsi_read_capacity_data_long *)rcap;
2279
2280         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
2281
2282         /* Try READ CAPACITY(16) first if we think it should work. */
2283         if (softc->flags & DA_FLAG_CAN_RC16) {
2284                 scsi_read_capacity_16(&ccb->csio,
2285                               /*retries*/ 4,
2286                               /*cbfcnp*/ dadone,
2287                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2288                               /*lba*/ 0,
2289                               /*reladr*/ 0,
2290                               /*pmi*/ 0,
2291                               rcaplong,
2292                               /*sense_len*/ SSD_FULL_SIZE,
2293                               /*timeout*/ 60000);
2294                 ccb->ccb_h.ccb_bp = NULL;
2295
2296                 error = cam_periph_runccb(ccb, daerror,
2297                                   /*cam_flags*/CAM_RETRY_SELTO,
2298                                   sense_flags,
2299                                   softc->disk->d_devstat);
2300                 if (error == 0)
2301                         goto rc16ok;
2302
2303                 /* If we got ILLEGAL REQUEST, do not prefer RC16 any more. */
2304                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2305                      CAM_REQ_INVALID) {
2306                         softc->flags &= ~DA_FLAG_CAN_RC16;
2307                 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
2308                      CAM_SCSI_STATUS_ERROR) &&
2309                     (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND) &&
2310                     (ccb->ccb_h.status & CAM_AUTOSNS_VALID) &&
2311                     ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0) &&
2312                     ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
2313                         int sense_key, error_code, asc, ascq;
2314
2315                         scsi_extract_sense(&ccb->csio.sense_data,
2316                                    &error_code, &sense_key, &asc, &ascq);
2317                         if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
2318                                 softc->flags &= ~DA_FLAG_CAN_RC16;
2319                 }
2320                 rc16failed = 1;
2321         }
2322
2323         /* Do READ CAPACITY(10). */
2324         scsi_read_capacity(&ccb->csio,
2325                            /*retries*/4,
2326                            /*cbfncp*/dadone,
2327                            MSG_SIMPLE_Q_TAG,
2328                            rcap,
2329                            SSD_FULL_SIZE,
2330                            /*timeout*/60000);
2331         ccb->ccb_h.ccb_bp = NULL;
2332
2333         error = cam_periph_runccb(ccb, daerror,
2334                                   /*cam_flags*/CAM_RETRY_SELTO,
2335                                   sense_flags,
2336                                   softc->disk->d_devstat);
2337         if (error == 0) {
2338                 block_len = scsi_4btoul(rcap->length);
2339                 maxsector = scsi_4btoul(rcap->addr);
2340
2341                 if (maxsector != 0xffffffff || rc16failed)
2342                         goto done;
2343         } else
2344                 goto done;
2345
2346         /* If READ CAPACITY(10) returned overflow, use READ CAPACITY(16) */
2347         scsi_read_capacity_16(&ccb->csio,
2348                               /*retries*/ 4,
2349                               /*cbfcnp*/ dadone,
2350                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
2351                               /*lba*/ 0,
2352                               /*reladr*/ 0,
2353                               /*pmi*/ 0,
2354                               rcaplong,
2355                               /*sense_len*/ SSD_FULL_SIZE,
2356                               /*timeout*/ 60000);
2357         ccb->ccb_h.ccb_bp = NULL;
2358
2359         error = cam_periph_runccb(ccb, daerror,
2360                                   /*cam_flags*/CAM_RETRY_SELTO,
2361                                   sense_flags,
2362                                   softc->disk->d_devstat);
2363         if (error == 0) {
2364 rc16ok:
2365                 block_len = scsi_4btoul(rcaplong->length);
2366                 maxsector = scsi_8btou64(rcaplong->addr);
2367                 lbppbe = rcaplong->prot_lbppbe & SRC16_LBPPBE;
2368                 lalba = scsi_2btoul(rcaplong->lalba_lbp);
2369         }
2370
2371 done:
2372
2373         if (error == 0) {
2374                 if (block_len >= MAXPHYS || block_len == 0) {
2375                         xpt_print(periph->path,
2376                             "unsupportable block size %ju\n",
2377                             (uintmax_t) block_len);
2378                         error = EINVAL;
2379                 } else {
2380                         dasetgeom(periph, block_len, maxsector,
2381                             lbppbe, lalba & SRC16_LALBA);
2382                         if (lalba & SRC16_LBPME)
2383                                 softc->flags |= DA_FLAG_CAN_LBPME;
2384                         else
2385                                 softc->flags &= ~DA_FLAG_CAN_LBPME;
2386                 }
2387         }
2388
2389         xpt_release_ccb(ccb);
2390
2391         free(rcap, M_SCSIDA);
2392
2393         return (error);
2394 }
2395
2396 static void
2397 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector,
2398     u_int lbppbe, u_int lalba)
2399 {
2400         struct ccb_calc_geometry ccg;
2401         struct da_softc *softc;
2402         struct disk_params *dp;
2403
2404         softc = (struct da_softc *)periph->softc;
2405
2406         dp = &softc->params;
2407         dp->secsize = block_len;
2408         dp->sectors = maxsector + 1;
2409         if (lbppbe > 0) {
2410                 dp->stripesize = block_len << lbppbe;
2411                 dp->stripeoffset = (dp->stripesize - block_len * lalba) %
2412                     dp->stripesize;
2413         } else if (softc->quirks & DA_Q_4K) {
2414                 dp->stripesize = 4096;
2415                 dp->stripeoffset = 0;
2416         } else {
2417                 dp->stripesize = 0;
2418                 dp->stripeoffset = 0;
2419         }
2420         /*
2421          * Have the controller provide us with a geometry
2422          * for this disk.  The only time the geometry
2423          * matters is when we boot and the controller
2424          * is the only one knowledgeable enough to come
2425          * up with something that will make this a bootable
2426          * device.
2427          */
2428         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2429         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2430         ccg.block_size = dp->secsize;
2431         ccg.volume_size = dp->sectors;
2432         ccg.heads = 0;
2433         ccg.secs_per_track = 0;
2434         ccg.cylinders = 0;
2435         xpt_action((union ccb*)&ccg);
2436         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2437                 /*
2438                  * We don't know what went wrong here- but just pick
2439                  * a geometry so we don't have nasty things like divide
2440                  * by zero.
2441                  */
2442                 dp->heads = 255;
2443                 dp->secs_per_track = 255;
2444                 dp->cylinders = dp->sectors / (255 * 255);
2445                 if (dp->cylinders == 0) {
2446                         dp->cylinders = 1;
2447                 }
2448         } else {
2449                 dp->heads = ccg.heads;
2450                 dp->secs_per_track = ccg.secs_per_track;
2451                 dp->cylinders = ccg.cylinders;
2452         }
2453 }
2454
2455 static void
2456 dasendorderedtag(void *arg)
2457 {
2458         struct da_softc *softc = arg;
2459
2460         if (da_send_ordered) {
2461                 if ((softc->ordered_tag_count == 0)
2462                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2463                         softc->flags |= DA_FLAG_NEED_OTAG;
2464                 }
2465                 if (softc->outstanding_cmds > 0)
2466                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2467
2468                 softc->ordered_tag_count = 0;
2469         }
2470         /* Queue us up again */
2471         callout_reset(&softc->sendordered_c,
2472             (da_default_timeout * hz) / DA_ORDEREDTAG_INTERVAL,
2473             dasendorderedtag, softc);
2474 }
2475
2476 /*
2477  * Step through all DA peripheral drivers, and if the device is still open,
2478  * sync the disk cache to physical media.
2479  */
2480 static void
2481 dashutdown(void * arg, int howto)
2482 {
2483         struct cam_periph *periph;
2484         struct da_softc *softc;
2485
2486         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2487                 union ccb ccb;
2488
2489                 cam_periph_lock(periph);
2490                 softc = (struct da_softc *)periph->softc;
2491
2492                 /*
2493                  * We only sync the cache if the drive is still open, and
2494                  * if the drive is capable of it..
2495                  */
2496                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2497                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2498                         cam_periph_unlock(periph);
2499                         continue;
2500                 }
2501
2502                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2503
2504                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2505                 scsi_synchronize_cache(&ccb.csio,
2506                                        /*retries*/1,
2507                                        /*cbfcnp*/dadone,
2508                                        MSG_SIMPLE_Q_TAG,
2509                                        /*begin_lba*/0, /* whole disk */
2510                                        /*lb_count*/0,
2511                                        SSD_FULL_SIZE,
2512                                        60 * 60 * 1000);
2513
2514                 xpt_polled_action(&ccb);
2515
2516                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2517                         if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2518                              CAM_SCSI_STATUS_ERROR)
2519                          && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2520                                 int error_code, sense_key, asc, ascq;
2521
2522                                 scsi_extract_sense(&ccb.csio.sense_data,
2523                                                    &error_code, &sense_key,
2524                                                    &asc, &ascq);
2525
2526                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2527                                         scsi_sense_print(&ccb.csio);
2528                         } else {
2529                                 xpt_print(periph->path, "Synchronize "
2530                                     "cache failed, status == 0x%x, scsi status "
2531                                     "== 0x%x\n", ccb.ccb_h.status,
2532                                     ccb.csio.scsi_status);
2533                         }
2534                 }
2535
2536                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2537                         cam_release_devq(ccb.ccb_h.path,
2538                                          /*relsim_flags*/0,
2539                                          /*reduction*/0,
2540                                          /*timeout*/0,
2541                                          /*getcount_only*/0);
2542                 cam_periph_unlock(periph);
2543         }
2544 }
2545
2546 #else /* !_KERNEL */
2547
2548 /*
2549  * XXX This is only left out of the kernel build to silence warnings.  If,
2550  * for some reason this function is used in the kernel, the ifdefs should
2551  * be moved so it is included both in the kernel and userland.
2552  */
2553 void
2554 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2555                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2556                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2557                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2558                  u_int32_t timeout)
2559 {
2560         struct scsi_format_unit *scsi_cmd;
2561
2562         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2563         scsi_cmd->opcode = FORMAT_UNIT;
2564         scsi_cmd->byte2 = byte2;
2565         scsi_ulto2b(ileave, scsi_cmd->interleave);
2566
2567         cam_fill_csio(csio,
2568                       retries,
2569                       cbfcnp,
2570                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2571                       tag_action,
2572                       data_ptr,
2573                       dxfer_len,
2574                       sense_len,
2575                       sizeof(*scsi_cmd),
2576                       timeout);
2577 }
2578
2579 #endif /* _KERNEL */