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_disk.h>
  48 #endif /* _KERNEL */
  49
  50 #ifndef _KERNEL
  51 #include <stdio.h>
  52 #include <string.h>
  53 #endif /* _KERNEL */
  54
  55 #include <cam/cam.h>
  56 #include <cam/cam_ccb.h>
  57 #include <cam/cam_periph.h>
  58 #include <cam/cam_xpt_periph.h>
  59 #include <cam/cam_sim.h>
  60
  61 #include <cam/scsi/scsi_message.h>
  62
  63 #ifndef _KERNEL
  64 #include <cam/scsi/scsi_da.h>
  65 #endif /* !_KERNEL */
  66
  67 #ifdef _KERNEL
  68 typedef enum {
  69         DA_STATE_PROBE,
  70         DA_STATE_PROBE2,
  71         DA_STATE_NORMAL
  72 } da_state;
  73
  74 typedef enum {
  75         DA_FLAG_PACK_INVALID    = 0x001,
  76         DA_FLAG_NEW_PACK        = 0x002,
  77         DA_FLAG_PACK_LOCKED     = 0x004,
  78         DA_FLAG_PACK_REMOVABLE  = 0x008,
  79         DA_FLAG_TAGGED_QUEUING  = 0x010,
  80         DA_FLAG_NEED_OTAG       = 0x020,
  81         DA_FLAG_WENT_IDLE       = 0x040,
  82         DA_FLAG_RETRY_UA        = 0x080,
  83         DA_FLAG_OPEN            = 0x100,
  84         DA_FLAG_SCTX_INIT       = 0x200
  85 } da_flags;
  86
  87 typedef enum {
  88         DA_Q_NONE               = 0x00,
  89         DA_Q_NO_SYNC_CACHE      = 0x01,
  90         DA_Q_NO_6_BYTE          = 0x02,
  91         DA_Q_NO_PREVENT         = 0x04
  92 } da_quirks;
  93
  94 typedef enum {
  95         DA_CCB_PROBE            = 0x01,
  96         DA_CCB_PROBE2           = 0x02,
  97         DA_CCB_BUFFER_IO        = 0x03,
  98         DA_CCB_WAITING          = 0x04,
  99         DA_CCB_DUMP             = 0x05,
 100         DA_CCB_TYPE_MASK        = 0x0F,
 101         DA_CCB_RETRY_UA         = 0x10
 102 } da_ccb_state;
 103
 104 /* Offsets into our private area for storing information */
 105 #define ccb_state       ppriv_field0
 106 #define ccb_bp          ppriv_ptr1
 107
 108 struct disk_params {
 109         u_int8_t  heads;
 110         u_int32_t cylinders;
 111         u_int8_t  secs_per_track;
 112         u_int32_t secsize;      /* Number of bytes/sector */
 113         u_int64_t sectors;      /* total number sectors */
 114 };
 115
 116 struct da_softc {
 117         struct   bio_queue_head bio_queue;
 118         SLIST_ENTRY(da_softc) links;
 119         LIST_HEAD(, ccb_hdr) pending_ccbs;
 120         da_state state;
 121         da_flags flags;
 122         da_quirks quirks;
 123         int      minimum_cmd_size;
 124         int      ordered_tag_count;
 125         int      outstanding_cmds;
 126         struct   disk_params params;
 127         struct   disk *disk;
 128         union    ccb saved_ccb;
 129         struct task             sysctl_task;
 130         struct sysctl_ctx_list  sysctl_ctx;
 131         struct sysctl_oid       *sysctl_tree;
 132         struct callout          sendordered_c;
 133         uint64_t wwpn;
 134 };
 135
 136 struct da_quirk_entry {
 137         struct scsi_inquiry_pattern inq_pat;
 138         da_quirks quirks;
 139 };
 140
 141 static const char quantum[] = "QUANTUM";
 142 static const char microp[] = "MICROP";
 143
 144 static struct da_quirk_entry da_quirk_table[] =
 145 {
 146         /* SPI, FC devices */
 147         {
 148                 /*
 149                  * Fujitsu M2513A MO drives.
 150                  * Tested devices: M2513A2 firmware versions 1200 & 1300.
 151                  * (dip switch selects whether T_DIRECT or T_OPTICAL device)
 152                  * Reported by: W.Scholten <whs@xs4all.nl>
 153                  */
 154                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 155                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 156         },
 157         {
 158                 /* See above. */
 159                 {T_OPTICAL, SIP_MEDIA_REMOVABLE, "FUJITSU", "M2513A", "*"},
 160                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 161         },
 162         {
 163                 /*
 164                  * This particular Fujitsu drive doesn't like the
 165                  * synchronize cache command.
 166                  * Reported by: Tom Jackson <toj@gorilla.net>
 167                  */
 168                 {T_DIRECT, SIP_MEDIA_FIXED, "FUJITSU", "M2954*", "*"},
 169                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 170         },
 171         {
 172                 /*
 173                  * This drive doesn't like the synchronize cache command
 174                  * either.  Reported by: Matthew Jacob <mjacob@feral.com>
 175                  * in NetBSD PR kern/6027, August 24, 1998.
 176                  */
 177                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2217*", "*"},
 178                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 179         },
 180         {
 181                 /*
 182                  * This drive doesn't like the synchronize cache command
 183                  * either.  Reported by: Hellmuth Michaelis (hm@kts.org)
 184                  * (PR 8882).
 185                  */
 186                 {T_DIRECT, SIP_MEDIA_FIXED, microp, "2112*", "*"},
 187                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 188         },
 189         {
 190                 /*
 191                  * Doesn't like the synchronize cache command.
 192                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 193                  */
 194                 {T_DIRECT, SIP_MEDIA_FIXED, "NEC", "D3847*", "*"},
 195                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 196         },
 197         {
 198                 /*
 199                  * Doesn't like the synchronize cache command.
 200                  * Reported by: Blaz Zupan <blaz@gold.amis.net>
 201                  */
 202                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "MAVERICK 540S", "*"},
 203                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 204         },
 205         {
 206                 /*
 207                  * Doesn't like the synchronize cache command.
 208                  */
 209                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS525S", "*"},
 210                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 211         },
 212         {
 213                 /*
 214                  * Doesn't like the synchronize cache command.
 215                  * Reported by: walter@pelissero.de
 216                  */
 217                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "LPS540S", "*"},
 218                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 219         },
 220         {
 221                 /*
 222                  * Doesn't work correctly with 6 byte reads/writes.
 223                  * Returns illegal request, and points to byte 9 of the
 224                  * 6-byte CDB.
 225                  * Reported by:  Adam McDougall <bsdx@spawnet.com>
 226                  */
 227                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 4*", "*"},
 228                 /*quirks*/ DA_Q_NO_6_BYTE
 229         },
 230         {
 231                 /* See above. */
 232                 {T_DIRECT, SIP_MEDIA_FIXED, quantum, "VIKING 2*", "*"},
 233                 /*quirks*/ DA_Q_NO_6_BYTE
 234         },
 235         {
 236                 /*
 237                  * Doesn't like the synchronize cache command.
 238                  * Reported by: walter@pelissero.de
 239                  */
 240                 {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CP3500*", "*"},
 241                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 242         },
 243         {
 244                 /*
 245                  * The CISS RAID controllers do not support SYNC_CACHE
 246                  */
 247                 {T_DIRECT, SIP_MEDIA_FIXED, "COMPAQ", "RAID*", "*"},
 248                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 249         },
 250         /* USB mass storage devices supported by umass(4) */
 251         {
 252                 /*
 253                  * EXATELECOM (Sigmatel) i-Bead 100/105 USB Flash MP3 Player
 254                  * PR: kern/51675
 255                  */
 256                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EXATEL", "i-BEAD10*", "*"},
 257                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 258         },
 259         {
 260                 /*
 261                  * Power Quotient Int. (PQI) USB flash key
 262                  * PR: kern/53067
 263                  */
 264                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "USB Flash Disk*",
 265                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 266         },
 267         {
 268                 /*
 269                  * Creative Nomad MUVO mp3 player (USB)
 270                  * PR: kern/53094
 271                  */
 272                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "NOMAD_MUVO", "*"},
 273                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 274         },
 275         {
 276                 /*
 277                  * Jungsoft NEXDISK USB flash key
 278                  * PR: kern/54737
 279                  */
 280                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JUNGSOFT", "NEXDISK*", "*"},
 281                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 282         },
 283         {
 284                 /*
 285                  * FreeDik USB Mini Data Drive
 286                  * PR: kern/54786
 287                  */
 288                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FreeDik*", "Mini Data Drive",
 289                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 290         },
 291         {
 292                 /*
 293                  * Sigmatel USB Flash MP3 Player
 294                  * PR: kern/57046
 295                  */
 296                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SigmaTel", "MSCN", "*"},
 297                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 298         },
 299         {
 300                 /*
 301                  * Neuros USB Digital Audio Computer
 302                  * PR: kern/63645
 303                  */
 304                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "NEUROS", "dig. audio comp.",
 305                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 306         },
 307         {
 308                 /*
 309                  * SEAGRAND NP-900 MP3 Player
 310                  * PR: kern/64563
 311                  */
 312                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SEAGRAND", "NP-900*", "*"},
 313                 /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 314         },
 315         {
 316                 /*
 317                  * iRiver iFP MP3 player (with UMS Firmware)
 318                  * PR: kern/54881, i386/63941, kern/66124
 319                  */
 320                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iRiver", "iFP*", "*"},
 321                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 322         },
 323         {
 324                 /*
 325                  * Frontier Labs NEX IA+ Digital Audio Player, rev 1.10/0.01
 326                  * PR: kern/70158
 327                  */
 328                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "FL" , "Nex*", "*"},
 329                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 330         },
 331         {
 332                 /*
 333                  * ZICPlay USB MP3 Player with FM
 334                  * PR: kern/75057
 335                  */
 336                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ACTIONS*" , "USB DISK*", "*"},
 337                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 338         },
 339         {
 340                 /*
 341                  * TEAC USB floppy mechanisms
 342                  */
 343                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TEAC" , "FD-05*", "*"},
 344                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 345         },
 346         {
 347                 /*
 348                  * Kingston DataTraveler II+ USB Pen-Drive.
 349                  * Reported by: Pawel Jakub Dawidek <pjd@FreeBSD.org>
 350                  */
 351                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+",
 352                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 353         },
 354         {
 355                 /*
 356                  * Motorola E398 Mobile Phone (TransFlash memory card).
 357                  * Reported by: Wojciech A. Koszek <dunstan@FreeBSD.czest.pl>
 358                  * PR: usb/89889
 359                  */
 360                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Motorola" , "Motorola Phone",
 361                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 362         },
 363         {
 364                 /*
 365                  * Qware BeatZkey! Pro
 366                  * PR: usb/79164
 367                  */
 368                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "GENERIC", "USB DISK DEVICE",
 369                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 370         },
 371         {
 372                 /*
 373                  * Time DPA20B 1GB MP3 Player
 374                  * PR: usb/81846
 375                  */
 376                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB2.0*", "(FS) FLASH DISK*",
 377                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 378         },
 379         {
 380                 /*
 381                  * Samsung USB key 128Mb
 382                  * PR: usb/90081
 383                  */
 384                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB-DISK", "FreeDik-FlashUsb",
 385                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 386         },
 387         {
 388                 /*
 389                  * Kingston DataTraveler 2.0 USB Flash memory.
 390                  * PR: usb/89196
 391                  */
 392                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0",
 393                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 394         },
 395         {
 396                 /*
 397                  * Creative MUVO Slim mp3 player (USB)
 398                  * PR: usb/86131
 399                  */
 400                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CREATIVE", "MuVo Slim",
 401                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE|DA_Q_NO_PREVENT
 402                 },
 403         {
 404                 /*
 405                  * United MP5512 Portable MP3 Player (2-in-1 USB DISK/MP3)
 406                  * PR: usb/80487
 407                  */
 408                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "MUSIC DISK",
 409                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 410         },
 411         {
 412                 /*
 413                  * SanDisk Micro Cruzer 128MB
 414                  * PR: usb/75970
 415                  */
 416                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "SanDisk" , "Micro Cruzer",
 417                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 418         },
 419         {
 420                 /*
 421                  * TOSHIBA TransMemory USB sticks
 422                  * PR: kern/94660
 423                  */
 424                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "TOSHIBA", "TransMemory",
 425                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 426         },
 427         {
 428                 /*
 429                  * PNY USB Flash keys
 430                  * PR: usb/75578, usb/72344, usb/65436
 431                  */
 432                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "*" , "USB DISK*",
 433                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 434         },
 435         {
 436                 /*
 437                  * Genesys 6-in-1 Card Reader
 438                  * PR: usb/94647
 439                  */
 440                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Generic*", "STORAGE DEVICE*",
 441                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 442         },
 443         {
 444                 /*
 445                  * Rekam Digital CAMERA
 446                  * PR: usb/98713
 447                  */
 448                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "CAMERA*", "4MP-9J6*",
 449                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 450         },
 451         {
 452                 /*
 453                  * iRiver H10 MP3 player
 454                  * PR: usb/102547
 455                  */
 456                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "H10*",
 457                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 458         },
 459         {
 460                 /*
 461                  * iRiver U10 MP3 player
 462                  * PR: usb/92306
 463                  */
 464                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "iriver", "U10*",
 465                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 466         },
 467         {
 468                 /*
 469                  * X-Micro Flash Disk
 470                  * PR: usb/96901
 471                  */
 472                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "X-Micro", "Flash Disk",
 473                 "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 474         },
 475         {
 476                 /*
 477                  * EasyMP3 EM732X USB 2.0 Flash MP3 Player
 478                  * PR: usb/96546
 479                  */
 480                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "EM732X", "MP3 Player*",
 481                 "1.00"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 482         },
 483         {
 484                 /*
 485                  * Denver MP3 player
 486                  * PR: usb/107101
 487                  */
 488                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "DENVER", "MP3 PLAYER",
 489                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 490         },
 491         {
 492                 /*
 493                  * Philips USB Key Audio KEY013
 494                  * PR: usb/68412
 495                  */
 496                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "PHILIPS", "Key*", "*"},
 497                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 498         },
 499         {
 500                 /*
 501                  * JNC MP3 Player
 502                  * PR: usb/94439
 503                  */
 504                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "JNC*" , "MP3 Player*",
 505                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 506         },
 507         {
 508                 /*
 509                  * SAMSUNG MP0402H
 510                  * PR: usb/108427
 511                  */
 512                 {T_DIRECT, SIP_MEDIA_FIXED, "SAMSUNG", "MP0402H", "*"},
 513                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 514         },
 515         {
 516                 /*
 517                  * I/O Magic USB flash - Giga Bank
 518                  * PR: usb/108810
 519                  */
 520                 {T_DIRECT, SIP_MEDIA_FIXED, "GS-Magic", "stor*", "*"},
 521                 /*quirks*/ DA_Q_NO_SYNC_CACHE
 522         },
 523         {
 524                 /*
 525                  * JoyFly 128mb USB Flash Drive
 526                  * PR: 96133
 527                  */
 528                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "USB 2.0", "Flash Disk*",
 529                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 530         },
 531         {
 532                 /*
 533                  * ChipsBnk usb stick
 534                  * PR: 103702
 535                  */
 536                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "ChipsBnk", "USB*",
 537                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 538         },
 539         {
 540                 /*
 541                  * Storcase (Kingston) InfoStation IFS FC2/SATA-R 201A
 542                  * PR: 129858
 543                  */
 544                 {T_DIRECT, SIP_MEDIA_FIXED, "IFS", "FC2/SATA-R*",
 545                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 546         },
 547         {
 548                 /*
 549                  * Samsung YP-U3 mp3-player
 550                  * PR: 125398
 551                  */
 552                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Samsung", "YP-U3",
 553                  "*"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 554         },
 555         {
 556                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Netac", "OnlyDisk*",
 557                  "2000"}, /*quirks*/ DA_Q_NO_SYNC_CACHE
 558         },
 559         {
 560                 /*
 561                  * Sony Cyber-Shot DSC cameras
 562                  * PR: usb/137035
 563                  */
 564                 {T_DIRECT, SIP_MEDIA_REMOVABLE, "Sony", "Sony DSC", "*"},
 565                 /*quirks*/ DA_Q_NO_SYNC_CACHE | DA_Q_NO_PREVENT
 566         }
 567 };
 568
 569 static  disk_strategy_t dastrategy;
 570 static  dumper_t        dadump;
 571 static  periph_init_t   dainit;
 572 static  void            daasync(void *callback_arg, u_int32_t code,
 573                                 struct cam_path *path, void *arg);
 574 static  void            dasysctlinit(void *context, int pending);
 575 static  int             dacmdsizesysctl(SYSCTL_HANDLER_ARGS);
 576 static  periph_ctor_t   daregister;
 577 static  periph_dtor_t   dacleanup;
 578 static  periph_start_t  dastart;
 579 static  periph_oninv_t  daoninvalidate;
 580 static  void            dadone(struct cam_periph *periph,
 581                                union ccb *done_ccb);
 582 static  int             daerror(union ccb *ccb, u_int32_t cam_flags,
 583                                 u_int32_t sense_flags);
 584 static void             daprevent(struct cam_periph *periph, int action);
 585 static int              dagetcapacity(struct cam_periph *periph);
 586 static void             dasetgeom(struct cam_periph *periph, uint32_t block_len,
 587                                   uint64_t maxsector);
 588 static timeout_t        dasendorderedtag;
 589 static void             dashutdown(void *arg, int howto);
 590
 591 #ifndef DA_DEFAULT_TIMEOUT
 592 #define DA_DEFAULT_TIMEOUT 60   /* Timeout in seconds */
 593 #endif
 594
 595 #ifndef DA_DEFAULT_RETRY
 596 #define DA_DEFAULT_RETRY        4
 597 #endif
 598
 599 #ifndef DA_DEFAULT_SEND_ORDERED
 600 #define DA_DEFAULT_SEND_ORDERED 1
 601 #endif
 602
 603
 604 static int da_retry_count = DA_DEFAULT_RETRY;
 605 static int da_default_timeout = DA_DEFAULT_TIMEOUT;
 606 static int da_send_ordered = DA_DEFAULT_SEND_ORDERED;
 607
 608 SYSCTL_NODE(_kern_cam, OID_AUTO, da, CTLFLAG_RD, 0,
 609             "CAM Direct Access Disk driver");
 610 SYSCTL_INT(_kern_cam_da, OID_AUTO, retry_count, CTLFLAG_RW,
 611            &da_retry_count, 0, "Normal I/O retry count");
 612 TUNABLE_INT("kern.cam.da.retry_count", &da_retry_count);
 613 SYSCTL_INT(_kern_cam_da, OID_AUTO, default_timeout, CTLFLAG_RW,
 614            &da_default_timeout, 0, "Normal I/O timeout (in seconds)");
 615 TUNABLE_INT("kern.cam.da.default_timeout", &da_default_timeout);
 616 SYSCTL_INT(_kern_cam_da, OID_AUTO, da_send_ordered, CTLFLAG_RW,
 617            &da_send_ordered, 0, "Send Ordered Tags");
 618 TUNABLE_INT("kern.cam.da.da_send_ordered", &da_send_ordered);
 619
 620 /*
 621  * DA_ORDEREDTAG_INTERVAL determines how often, relative
 622  * to the default timeout, we check to see whether an ordered
 623  * tagged transaction is appropriate to prevent simple tag
 624  * starvation.  Since we'd like to ensure that there is at least
 625  * 1/2 of the timeout length left for a starved transaction to
 626  * complete after we've sent an ordered tag, we must poll at least
 627  * four times in every timeout period.  This takes care of the worst
 628  * case where a starved transaction starts during an interval that
 629  * meets the requirement "don't send an ordered tag" test so it takes
 630  * us two intervals to determine that a tag must be sent.
 631  */
 632 #ifndef DA_ORDEREDTAG_INTERVAL
 633 #define DA_ORDEREDTAG_INTERVAL 4
 634 #endif
 635
 636 static struct periph_driver dadriver =
 637 {
 638         dainit, "da",
 639         TAILQ_HEAD_INITIALIZER(dadriver.units), /* generation */ 0
 640 };
 641
 642 PERIPHDRIVER_DECLARE(da, dadriver);
 643
 644 MALLOC_DEFINE(M_SCSIDA, "scsi_da", "scsi_da buffers");
 645
 646 static int
 647 daopen(struct disk *dp)
 648 {
 649         struct cam_periph *periph;
 650         struct da_softc *softc;
 651         int unit;
 652         int error;
 653
 654         periph = (struct cam_periph *)dp->d_drv1;
 655         if (periph == NULL) {
 656                 return (ENXIO);
 657         }
 658
 659         if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
 660                 return(ENXIO);
 661         }
 662
 663         cam_periph_lock(periph);
 664         if ((error = cam_periph_hold(periph, PRIBIO|PCATCH)) != 0) {
 665                 cam_periph_unlock(periph);
 666                 cam_periph_release(periph);
 667                 return (error);
 668         }
 669
 670         unit = periph->unit_number;
 671         softc = (struct da_softc *)periph->softc;
 672         softc->flags |= DA_FLAG_OPEN;
 673
 674         CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
 675             ("daopen: disk=%s%d (unit %d)\n", dp->d_name, dp->d_unit,
 676              unit));
 677
 678         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 679                 /* Invalidate our pack information. */
 680                 softc->flags &= ~DA_FLAG_PACK_INVALID;
 681         }
 682
 683         error = dagetcapacity(periph);
 684
 685         if (error == 0) {
 686
 687                 softc->disk->d_sectorsize = softc->params.secsize;
 688                 softc->disk->d_mediasize = softc->params.secsize * (off_t)softc->params.sectors;
 689                 /* XXX: these are not actually "firmware" values, so they may be wrong */
 690                 softc->disk->d_fwsectors = softc->params.secs_per_track;
 691                 softc->disk->d_fwheads = softc->params.heads;
 692                 softc->disk->d_devstat->block_size = softc->params.secsize;
 693                 softc->disk->d_devstat->flags &= ~DEVSTAT_BS_UNAVAILABLE;
 694
 695                 if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0 &&
 696                     (softc->quirks & DA_Q_NO_PREVENT) == 0)
 697                         daprevent(periph, PR_PREVENT);
 698         } else
 699                 softc->flags &= ~DA_FLAG_OPEN;
 700
 701         cam_periph_unhold(periph);
 702         cam_periph_unlock(periph);
 703
 704         if (error != 0) {
 705                 cam_periph_release(periph);
 706         }
 707         return (error);
 708 }
 709
 710 static int
 711 daclose(struct disk *dp)
 712 {
 713         struct  cam_periph *periph;
 714         struct  da_softc *softc;
 715         int error;
 716
 717         periph = (struct cam_periph *)dp->d_drv1;
 718         if (periph == NULL)
 719                 return (ENXIO);
 720
 721         cam_periph_lock(periph);
 722         if ((error = cam_periph_hold(periph, PRIBIO)) != 0) {
 723                 cam_periph_unlock(periph);
 724                 cam_periph_release(periph);
 725                 return (error);
 726         }
 727
 728         softc = (struct da_softc *)periph->softc;
 729
 730         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
 731                 union   ccb *ccb;
 732
 733                 ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
 734
 735                 scsi_synchronize_cache(&ccb->csio,
 736                                        /*retries*/1,
 737                                        /*cbfcnp*/dadone,
 738                                        MSG_SIMPLE_Q_TAG,
 739                                        /*begin_lba*/0,/* Cover the whole disk */
 740                                        /*lb_count*/0,
 741                                        SSD_FULL_SIZE,
 742                                        5 * 60 * 1000);
 743
 744                 cam_periph_runccb(ccb, /*error_routine*/NULL, /*cam_flags*/0,
 745                                   /*sense_flags*/SF_RETRY_UA,
 746                                   softc->disk->d_devstat);
 747
 748                 if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 749                         if ((ccb->ccb_h.status & CAM_STATUS_MASK) ==
 750                              CAM_SCSI_STATUS_ERROR) {
 751                                 int asc, ascq;
 752                                 int sense_key, error_code;
 753
 754                                 scsi_extract_sense(&ccb->csio.sense_data,
 755                                                    &error_code,
 756                                                    &sense_key,
 757                                                    &asc, &ascq);
 758                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
 759                                         scsi_sense_print(&ccb->csio);
 760                         } else {
 761                                 xpt_print(periph->path, "Synchronize cache "
 762                                     "failed, status == 0x%x, scsi status == "
 763                                     "0x%x\n", ccb->csio.ccb_h.status,
 764                                     ccb->csio.scsi_status);
 765                         }
 766                 }
 767
 768                 if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
 769                         cam_release_devq(ccb->ccb_h.path,
 770                                          /*relsim_flags*/0,
 771                                          /*reduction*/0,
 772                                          /*timeout*/0,
 773                                          /*getcount_only*/0);
 774
 775                 xpt_release_ccb(ccb);
 776
 777         }
 778
 779         if ((softc->flags & DA_FLAG_PACK_REMOVABLE) != 0) {
 780                 if ((softc->quirks & DA_Q_NO_PREVENT) == 0)
 781                         daprevent(periph, PR_ALLOW);
 782                 /*
 783                  * If we've got removeable media, mark the blocksize as
 784                  * unavailable, since it could change when new media is
 785                  * inserted.
 786                  */
 787                 softc->disk->d_devstat->flags |= DEVSTAT_BS_UNAVAILABLE;
 788         }
 789
 790         softc->flags &= ~DA_FLAG_OPEN;
 791         cam_periph_unhold(periph);
 792         cam_periph_unlock(periph);
 793         cam_periph_release(periph);
 794         return (0);
 795 }
 796
 797 /*
 798  * Actually translate the requested transfer into one the physical driver
 799  * can understand.  The transfer is described by a buf and will include
 800  * only one physical transfer.
 801  */
 802 static void
 803 dastrategy(struct bio *bp)
 804 {
 805         struct cam_periph *periph;
 806         struct da_softc *softc;
 807
 808         periph = (struct cam_periph *)bp->bio_disk->d_drv1;
 809         if (periph == NULL) {
 810                 biofinish(bp, NULL, ENXIO);
 811                 return;
 812         }
 813         softc = (struct da_softc *)periph->softc;
 814
 815         cam_periph_lock(periph);
 816
 817         /*
 818          * If the device has been made invalid, error out
 819          */
 820         if ((softc->flags & DA_FLAG_PACK_INVALID)) {
 821                 cam_periph_unlock(periph);
 822                 biofinish(bp, NULL, ENXIO);
 823                 return;
 824         }
 825
 826         /*
 827          * Place it in the queue of disk activities for this disk
 828          */
 829         bioq_disksort(&softc->bio_queue, bp);
 830
 831         /*
 832          * Schedule ourselves for performing the work.
 833          */
 834         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
 835         cam_periph_unlock(periph);
 836
 837         return;
 838 }
 839
 840 static int
 841 dadump(void *arg, void *virtual, vm_offset_t physical, off_t offset, size_t length)
 842 {
 843         struct      cam_periph *periph;
 844         struct      da_softc *softc;
 845         u_int       secsize;
 846         struct      ccb_scsiio csio;
 847         struct      disk *dp;
 848
 849         dp = arg;
 850         periph = dp->d_drv1;
 851         if (periph == NULL)
 852                 return (ENXIO);
 853         softc = (struct da_softc *)periph->softc;
 854         cam_periph_lock(periph);
 855         secsize = softc->params.secsize;
 856
 857         if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
 858                 cam_periph_unlock(periph);
 859                 return (ENXIO);
 860         }
 861
 862         if (length > 0) {
 863                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 864                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
 865                 scsi_read_write(&csio,
 866                                 /*retries*/1,
 867                                 dadone,
 868                                 MSG_ORDERED_Q_TAG,
 869                                 /*read*/FALSE,
 870                                 /*byte2*/0,
 871                                 /*minimum_cmd_size*/ softc->minimum_cmd_size,
 872                                 offset / secsize,
 873                                 length / secsize,
 874                                 /*data_ptr*/(u_int8_t *) virtual,
 875                                 /*dxfer_len*/length,
 876                                 /*sense_len*/SSD_FULL_SIZE,
 877                                 DA_DEFAULT_TIMEOUT * 1000);
 878                 xpt_polled_action((union ccb *)&csio);
 879
 880                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 881                         printf("Aborting dump due to I/O error.\n");
 882                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
 883                              CAM_SCSI_STATUS_ERROR)
 884                                 scsi_sense_print(&csio);
 885                         else
 886                                 printf("status == 0x%x, scsi status == 0x%x\n",
 887                                        csio.ccb_h.status, csio.scsi_status);
 888                         return(EIO);
 889                 }
 890                 cam_periph_unlock(periph);
 891                 return(0);
 892         }
 893
 894         /*
 895          * Sync the disk cache contents to the physical media.
 896          */
 897         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0) {
 898
 899                 xpt_setup_ccb(&csio.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
 900                 csio.ccb_h.ccb_state = DA_CCB_DUMP;
 901                 scsi_synchronize_cache(&csio,
 902                                        /*retries*/1,
 903                                        /*cbfcnp*/dadone,
 904                                        MSG_SIMPLE_Q_TAG,
 905                                        /*begin_lba*/0,/* Cover the whole disk */
 906                                        /*lb_count*/0,
 907                                        SSD_FULL_SIZE,
 908                                        5 * 60 * 1000);
 909                 xpt_polled_action((union ccb *)&csio);
 910
 911                 if ((csio.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
 912                         if ((csio.ccb_h.status & CAM_STATUS_MASK) ==
 913                              CAM_SCSI_STATUS_ERROR) {
 914                                 int asc, ascq;
 915                                 int sense_key, error_code;
 916
 917                                 scsi_extract_sense(&csio.sense_data,
 918                                                    &error_code,
 919                                                    &sense_key,
 920                                                    &asc, &ascq);
 921                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
 922                                         scsi_sense_print(&csio);
 923                         } else {
 924                                 xpt_print(periph->path, "Synchronize cache "
 925                                     "failed, status == 0x%x, scsi status == "
 926                                     "0x%x\n", csio.ccb_h.status,
 927                                     csio.scsi_status);
 928                         }
 929                 }
 930         }
 931         cam_periph_unlock(periph);
 932         return (0);
 933 }
 934
 935 static void
 936 dainit(void)
 937 {
 938         cam_status status;
 939
 940         /*
 941          * Install a global async callback.  This callback will
 942          * receive async callbacks like "new device found".
 943          */
 944         status = xpt_register_async(AC_FOUND_DEVICE, daasync, NULL, NULL);
 945
 946         if (status != CAM_REQ_CMP) {
 947                 printf("da: Failed to attach master async callback "
 948                        "due to status 0x%x!\n", status);
 949         } else if (da_send_ordered) {
 950
 951                 /* Register our shutdown event handler */
 952                 if ((EVENTHANDLER_REGISTER(shutdown_post_sync, dashutdown,
 953                                            NULL, SHUTDOWN_PRI_DEFAULT)) == NULL)
 954                     printf("dainit: shutdown event registration failed!\n");
 955         }
 956 }
 957
 958 static void
 959 daoninvalidate(struct cam_periph *periph)
 960 {
 961         struct da_softc *softc;
 962
 963         softc = (struct da_softc *)periph->softc;
 964
 965         /*
 966          * De-register any async callbacks.
 967          */
 968         xpt_register_async(0, daasync, periph, periph->path);
 969
 970         softc->flags |= DA_FLAG_PACK_INVALID;
 971
 972         /*
 973          * Return all queued I/O with ENXIO.
 974          * XXX Handle any transactions queued to the card
 975          *     with XPT_ABORT_CCB.
 976          */
 977         bioq_flush(&softc->bio_queue, NULL, ENXIO);
 978
 979         disk_gone(softc->disk);
 980         xpt_print(periph->path, "lost device\n");
 981 }
 982
 983 static void
 984 dacleanup(struct cam_periph *periph)
 985 {
 986         struct da_softc *softc;
 987
 988         softc = (struct da_softc *)periph->softc;
 989
 990         xpt_print(periph->path, "removing device entry\n");
 991         cam_periph_unlock(periph);
 992
 993         /*
 994          * If we can't free the sysctl tree, oh well...
 995          */
 996         if ((softc->flags & DA_FLAG_SCTX_INIT) != 0
 997             && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
 998                 xpt_print(periph->path, "can't remove sysctl context\n");
 999         }
1000
1001         disk_destroy(softc->disk);
1002         callout_drain(&softc->sendordered_c);
1003         free(softc, M_DEVBUF);
1004         cam_periph_lock(periph);
1005 }
1006
1007 static void
1008 daasync(void *callback_arg, u_int32_t code,
1009         struct cam_path *path, void *arg)
1010 {
1011         struct cam_periph *periph;
1012
1013         periph = (struct cam_periph *)callback_arg;
1014         switch (code) {
1015         case AC_FOUND_DEVICE:
1016         {
1017                 struct ccb_getdev *cgd;
1018                 cam_status status;
1019
1020                 cgd = (struct ccb_getdev *)arg;
1021                 if (cgd == NULL)
1022                         break;
1023
1024                 if (cgd->protocol != PROTO_SCSI)
1025                         break;
1026
1027                 if (SID_TYPE(&cgd->inq_data) != T_DIRECT
1028                     && SID_TYPE(&cgd->inq_data) != T_RBC
1029                     && SID_TYPE(&cgd->inq_data) != T_OPTICAL)
1030                         break;
1031
1032                 /*
1033                  * Allocate a peripheral instance for
1034                  * this device and start the probe
1035                  * process.
1036                  */
1037                 status = cam_periph_alloc(daregister, daoninvalidate,
1038                                           dacleanup, dastart,
1039                                           "da", CAM_PERIPH_BIO,
1040                                           cgd->ccb_h.path, daasync,
1041                                           AC_FOUND_DEVICE, cgd);
1042
1043                 if (status != CAM_REQ_CMP
1044                  && status != CAM_REQ_INPROG)
1045                         printf("daasync: Unable to attach to new device "
1046                                 "due to status 0x%x\n", status);
1047                 break;
1048         }
1049         case AC_SENT_BDR:
1050         case AC_BUS_RESET:
1051         {
1052                 struct da_softc *softc;
1053                 struct ccb_hdr *ccbh;
1054
1055                 softc = (struct da_softc *)periph->softc;
1056                 /*
1057                  * Don't fail on the expected unit attention
1058                  * that will occur.
1059                  */
1060                 softc->flags |= DA_FLAG_RETRY_UA;
1061                 LIST_FOREACH(ccbh, &softc->pending_ccbs, periph_links.le)
1062                         ccbh->ccb_state |= DA_CCB_RETRY_UA;
1063                 /* FALLTHROUGH*/
1064         }
1065         default:
1066                 cam_periph_async(periph, code, path, arg);
1067                 break;
1068         }
1069 }
1070
1071 static void
1072 dasysctlinit(void *context, int pending)
1073 {
1074         struct cam_periph *periph;
1075         struct da_softc *softc;
1076         char tmpstr[80], tmpstr2[80];
1077         struct ccb_trans_settings cts;
1078
1079         periph = (struct cam_periph *)context;
1080         /*
1081          * periph was held for us when this task was enqueued
1082          */
1083         if (periph->flags & CAM_PERIPH_INVALID) {
1084                 cam_periph_release(periph);
1085                 return;
1086         }
1087
1088         softc = (struct da_softc *)periph->softc;
1089         snprintf(tmpstr, sizeof(tmpstr), "CAM DA unit %d", periph->unit_number);
1090         snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
1091
1092         sysctl_ctx_init(&softc->sysctl_ctx);
1093         softc->flags |= DA_FLAG_SCTX_INIT;
1094         softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
1095                 SYSCTL_STATIC_CHILDREN(_kern_cam_da), OID_AUTO, tmpstr2,
1096                 CTLFLAG_RD, 0, tmpstr);
1097         if (softc->sysctl_tree == NULL) {
1098                 printf("dasysctlinit: unable to allocate sysctl tree\n");
1099                 cam_periph_release(periph);
1100                 return;
1101         }
1102
1103         /*
1104          * Now register the sysctl handler, so the user can change the value on
1105          * the fly.
1106          */
1107         SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
1108                 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
1109                 &softc->minimum_cmd_size, 0, dacmdsizesysctl, "I",
1110                 "Minimum CDB size");
1111
1112         /*
1113          * Add some addressing info.
1114          */
1115         memset(&cts, 0, sizeof (cts));
1116         xpt_setup_ccb(&cts.ccb_h, periph->path, /*priority*/1);
1117         cts.ccb_h.func_code = XPT_GET_TRAN_SETTINGS;
1118         cts.type = CTS_TYPE_CURRENT_SETTINGS;
1119         cam_periph_lock(periph);
1120         xpt_action((union ccb *)&cts);
1121         cam_periph_unlock(periph);
1122         if (cts.ccb_h.status != CAM_REQ_CMP) {
1123                 cam_periph_release(periph);
1124                 return;
1125         }
1126         if (cts.protocol == PROTO_SCSI && cts.transport == XPORT_FC) {
1127                 struct ccb_trans_settings_fc *fc = &cts.xport_specific.fc;
1128                 if (fc->valid & CTS_FC_VALID_WWPN) {
1129                         softc->wwpn = fc->wwpn;
1130                         SYSCTL_ADD_UQUAD(&softc->sysctl_ctx,
1131                             SYSCTL_CHILDREN(softc->sysctl_tree),
1132                             OID_AUTO, "wwpn", CTLFLAG_RD,
1133                             &softc->wwpn, "World Wide Port Name");
1134                 }
1135         }
1136         cam_periph_release(periph);
1137 }
1138
1139 static int
1140 dacmdsizesysctl(SYSCTL_HANDLER_ARGS)
1141 {
1142         int error, value;
1143
1144         value = *(int *)arg1;
1145
1146         error = sysctl_handle_int(oidp, &value, 0, req);
1147
1148         if ((error != 0)
1149          || (req->newptr == NULL))
1150                 return (error);
1151
1152         /*
1153          * Acceptable values here are 6, 10, 12 or 16.
1154          */
1155         if (value < 6)
1156                 value = 6;
1157         else if ((value > 6)
1158               && (value <= 10))
1159                 value = 10;
1160         else if ((value > 10)
1161               && (value <= 12))
1162                 value = 12;
1163         else if (value > 12)
1164                 value = 16;
1165
1166         *(int *)arg1 = value;
1167
1168         return (0);
1169 }
1170
1171 static cam_status
1172 daregister(struct cam_periph *periph, void *arg)
1173 {
1174         struct da_softc *softc;
1175         struct ccb_pathinq cpi;
1176         struct ccb_getdev *cgd;
1177         char tmpstr[80];
1178         caddr_t match;
1179
1180         cgd = (struct ccb_getdev *)arg;
1181         if (periph == NULL) {
1182                 printf("daregister: periph was NULL!!\n");
1183                 return(CAM_REQ_CMP_ERR);
1184         }
1185
1186         if (cgd == NULL) {
1187                 printf("daregister: no getdev CCB, can't register device\n");
1188                 return(CAM_REQ_CMP_ERR);
1189         }
1190
1191         softc = (struct da_softc *)malloc(sizeof(*softc), M_DEVBUF,
1192             M_NOWAIT|M_ZERO);
1193
1194         if (softc == NULL) {
1195                 printf("daregister: Unable to probe new device. "
1196                        "Unable to allocate softc\n");
1197                 return(CAM_REQ_CMP_ERR);
1198         }
1199
1200         LIST_INIT(&softc->pending_ccbs);
1201         softc->state = DA_STATE_PROBE;
1202         bioq_init(&softc->bio_queue);
1203         if (SID_IS_REMOVABLE(&cgd->inq_data))
1204                 softc->flags |= DA_FLAG_PACK_REMOVABLE;
1205         if ((cgd->inq_data.flags & SID_CmdQue) != 0)
1206                 softc->flags |= DA_FLAG_TAGGED_QUEUING;
1207
1208         periph->softc = softc;
1209
1210         /*
1211          * See if this device has any quirks.
1212          */
1213         match = cam_quirkmatch((caddr_t)&cgd->inq_data,
1214                                (caddr_t)da_quirk_table,
1215                                sizeof(da_quirk_table)/sizeof(*da_quirk_table),
1216                                sizeof(*da_quirk_table), scsi_inquiry_match);
1217
1218         if (match != NULL)
1219                 softc->quirks = ((struct da_quirk_entry *)match)->quirks;
1220         else
1221                 softc->quirks = DA_Q_NONE;
1222
1223         /* Check if the SIM does not want 6 byte commands */
1224         bzero(&cpi, sizeof(cpi));
1225         xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
1226         cpi.ccb_h.func_code = XPT_PATH_INQ;
1227         xpt_action((union ccb *)&cpi);
1228         if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
1229                 softc->quirks |= DA_Q_NO_6_BYTE;
1230
1231         TASK_INIT(&softc->sysctl_task, 0, dasysctlinit, periph);
1232
1233         /*
1234          * RBC devices don't have to support READ(6), only READ(10).
1235          */
1236         if (softc->quirks & DA_Q_NO_6_BYTE || SID_TYPE(&cgd->inq_data) == T_RBC)
1237                 softc->minimum_cmd_size = 10;
1238         else
1239                 softc->minimum_cmd_size = 6;
1240
1241         /*
1242          * Load the user's default, if any.
1243          */
1244         snprintf(tmpstr, sizeof(tmpstr), "kern.cam.da.%d.minimum_cmd_size",
1245                  periph->unit_number);
1246         TUNABLE_INT_FETCH(tmpstr, &softc->minimum_cmd_size);
1247
1248         /*
1249          * 6, 10, 12 and 16 are the currently permissible values.
1250          */
1251         if (softc->minimum_cmd_size < 6)
1252                 softc->minimum_cmd_size = 6;
1253         else if ((softc->minimum_cmd_size > 6)
1254               && (softc->minimum_cmd_size <= 10))
1255                 softc->minimum_cmd_size = 10;
1256         else if ((softc->minimum_cmd_size > 10)
1257               && (softc->minimum_cmd_size <= 12))
1258                 softc->minimum_cmd_size = 12;
1259         else if (softc->minimum_cmd_size > 12)
1260                 softc->minimum_cmd_size = 16;
1261
1262         /*
1263          * Register this media as a disk
1264          */
1265
1266         /*
1267          * Add async callbacks for bus reset and
1268          * bus device reset calls.  I don't bother
1269          * checking if this fails as, in most cases,
1270          * the system will function just fine without
1271          * them and the only alternative would be to
1272          * not attach the device on failure.
1273          */
1274         xpt_register_async(AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE,
1275                            daasync, periph, periph->path);
1276
1277         /*
1278          * Take an exclusive refcount on the periph while dastart is called
1279          * to finish the probe.  The reference will be dropped in dadone at
1280          * the end of probe.
1281          */
1282         (void)cam_periph_hold(periph, PRIBIO);
1283
1284         /*
1285          * Schedule a periodic event to occasionally send an
1286          * ordered tag to a device.
1287          */
1288         callout_init_mtx(&softc->sendordered_c, periph->sim->mtx, 0);
1289         callout_reset(&softc->sendordered_c,
1290             (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
1291             dasendorderedtag, softc);
1292
1293         mtx_unlock(periph->sim->mtx);
1294         softc->disk = disk_alloc();
1295         softc->disk->d_devstat = devstat_new_entry(periph->periph_name,
1296                           periph->unit_number, 0,
1297                           DEVSTAT_BS_UNAVAILABLE,
1298                           SID_TYPE(&cgd->inq_data) |
1299                           XPORT_DEVSTAT_TYPE(cpi.transport),
1300                           DEVSTAT_PRIORITY_DISK);
1301         softc->disk->d_open = daopen;
1302         softc->disk->d_close = daclose;
1303         softc->disk->d_strategy = dastrategy;
1304         softc->disk->d_dump = dadump;
1305         softc->disk->d_name = "da";
1306         softc->disk->d_drv1 = periph;
1307         if (cpi.maxio == 0)
1308                 softc->disk->d_maxsize = DFLTPHYS;      /* traditional default */
1309         else if (cpi.maxio > MAXPHYS)
1310                 softc->disk->d_maxsize = MAXPHYS;       /* for safety */
1311         else
1312                 softc->disk->d_maxsize = cpi.maxio;
1313         softc->disk->d_unit = periph->unit_number;
1314         softc->disk->d_flags = 0;
1315         if ((softc->quirks & DA_Q_NO_SYNC_CACHE) == 0)
1316                 softc->disk->d_flags |= DISKFLAG_CANFLUSHCACHE;
1317         strlcpy(softc->disk->d_ident, cgd->serial_num,
1318             MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1));
1319         cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
1320             sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
1321         strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
1322         cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
1323             cgd->inq_data.product, sizeof(cgd->inq_data.product),
1324             sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
1325         softc->disk->d_hba_vendor = cpi.hba_vendor;
1326         softc->disk->d_hba_device = cpi.hba_device;
1327         softc->disk->d_hba_subvendor = cpi.hba_subvendor;
1328         softc->disk->d_hba_subdevice = cpi.hba_subdevice;
1329         disk_create(softc->disk, DISK_VERSION);
1330         mtx_lock(periph->sim->mtx);
1331
1332         xpt_schedule(periph, CAM_PRIORITY_DEV);
1333
1334         return(CAM_REQ_CMP);
1335 }
1336
1337 static void
1338 dastart(struct cam_periph *periph, union ccb *start_ccb)
1339 {
1340         struct da_softc *softc;
1341
1342         softc = (struct da_softc *)periph->softc;
1343
1344         switch (softc->state) {
1345         case DA_STATE_NORMAL:
1346         {
1347                 /* Pull a buffer from the queue and get going on it */
1348                 struct bio *bp;
1349
1350                 /*
1351                  * See if there is a buf with work for us to do..
1352                  */
1353                 bp = bioq_first(&softc->bio_queue);
1354                 if (periph->immediate_priority <= periph->pinfo.priority) {
1355                         CAM_DEBUG_PRINT(CAM_DEBUG_SUBTRACE,
1356                                         ("queuing for immediate ccb\n"));
1357                         start_ccb->ccb_h.ccb_state = DA_CCB_WAITING;
1358                         SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1359                                           periph_links.sle);
1360                         periph->immediate_priority = CAM_PRIORITY_NONE;
1361                         wakeup(&periph->ccb_list);
1362                 } else if (bp == NULL) {
1363                         xpt_release_ccb(start_ccb);
1364                 } else {
1365                         u_int8_t tag_code;
1366
1367                         bioq_remove(&softc->bio_queue, bp);
1368
1369                         if ((bp->bio_flags & BIO_ORDERED) != 0
1370                          || (softc->flags & DA_FLAG_NEED_OTAG) != 0) {
1371                                 softc->flags &= ~DA_FLAG_NEED_OTAG;
1372                                 softc->ordered_tag_count++;
1373                                 tag_code = MSG_ORDERED_Q_TAG;
1374                         } else {
1375                                 tag_code = MSG_SIMPLE_Q_TAG;
1376                         }
1377                         switch (bp->bio_cmd) {
1378                         case BIO_READ:
1379                         case BIO_WRITE:
1380                                 scsi_read_write(&start_ccb->csio,
1381                                                 /*retries*/da_retry_count,
1382                                                 /*cbfcnp*/dadone,
1383                                                 /*tag_action*/tag_code,
1384                                                 /*read_op*/bp->bio_cmd
1385                                                         == BIO_READ,
1386                                                 /*byte2*/0,
1387                                                 softc->minimum_cmd_size,
1388                                                 /*lba*/bp->bio_pblkno,
1389                                                 /*block_count*/bp->bio_bcount /
1390                                                 softc->params.secsize,
1391                                                 /*data_ptr*/ bp->bio_data,
1392                                                 /*dxfer_len*/ bp->bio_bcount,
1393                                                 /*sense_len*/SSD_FULL_SIZE,
1394                                                 da_default_timeout * 1000);
1395                                 break;
1396                         case BIO_FLUSH:
1397                                 /*
1398                                  * BIO_FLUSH doesn't currently communicate
1399                                  * range data, so we synchronize the cache
1400                                  * over the whole disk.  We also force
1401                                  * ordered tag semantics the flush applies
1402                                  * to all previously queued I/O.
1403                                  */
1404                                 scsi_synchronize_cache(&start_ccb->csio,
1405                                                        /*retries*/1,
1406                                                        /*cbfcnp*/dadone,
1407                                                        MSG_ORDERED_Q_TAG,
1408                                                        /*begin_lba*/0,
1409                                                        /*lb_count*/0,
1410                                                        SSD_FULL_SIZE,
1411                                                        da_default_timeout*1000);
1412                                 break;
1413                         }
1414                         start_ccb->ccb_h.ccb_state = DA_CCB_BUFFER_IO;
1415
1416                         /*
1417                          * Block out any asyncronous callbacks
1418                          * while we touch the pending ccb list.
1419                          */
1420                         LIST_INSERT_HEAD(&softc->pending_ccbs,
1421                                          &start_ccb->ccb_h, periph_links.le);
1422                         softc->outstanding_cmds++;
1423
1424                         /* We expect a unit attention from this device */
1425                         if ((softc->flags & DA_FLAG_RETRY_UA) != 0) {
1426                                 start_ccb->ccb_h.ccb_state |= DA_CCB_RETRY_UA;
1427                                 softc->flags &= ~DA_FLAG_RETRY_UA;
1428                         }
1429
1430                         start_ccb->ccb_h.ccb_bp = bp;
1431                         bp = bioq_first(&softc->bio_queue);
1432
1433                         xpt_action(start_ccb);
1434                 }
1435
1436                 if (bp != NULL) {
1437                         /* Have more work to do, so ensure we stay scheduled */
1438                         xpt_schedule(periph, CAM_PRIORITY_NORMAL);
1439                 }
1440                 break;
1441         }
1442         case DA_STATE_PROBE:
1443         {
1444                 struct ccb_scsiio *csio;
1445                 struct scsi_read_capacity_data *rcap;
1446
1447                 rcap = (struct scsi_read_capacity_data *)
1448                     malloc(sizeof(*rcap), M_SCSIDA, M_NOWAIT|M_ZERO);
1449                 if (rcap == NULL) {
1450                         printf("dastart: Couldn't malloc read_capacity data\n");
1451                         /* da_free_periph??? */
1452                         break;
1453                 }
1454                 csio = &start_ccb->csio;
1455                 scsi_read_capacity(csio,
1456                                    /*retries*/4,
1457                                    dadone,
1458                                    MSG_SIMPLE_Q_TAG,
1459                                    rcap,
1460                                    SSD_FULL_SIZE,
1461                                    /*timeout*/5000);
1462                 start_ccb->ccb_h.ccb_bp = NULL;
1463                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE;
1464                 xpt_action(start_ccb);
1465                 break;
1466         }
1467         case DA_STATE_PROBE2:
1468         {
1469                 struct ccb_scsiio *csio;
1470                 struct scsi_read_capacity_data_long *rcaplong;
1471
1472                 rcaplong = (struct scsi_read_capacity_data_long *)
1473                         malloc(sizeof(*rcaplong), M_SCSIDA, M_NOWAIT|M_ZERO);
1474                 if (rcaplong == NULL) {
1475                         printf("dastart: Couldn't malloc read_capacity data\n");
1476                         /* da_free_periph??? */
1477                         break;
1478                 }
1479                 csio = &start_ccb->csio;
1480                 scsi_read_capacity_16(csio,
1481                                       /*retries*/ 4,
1482                                       /*cbfcnp*/ dadone,
1483                                       /*tag_action*/ MSG_SIMPLE_Q_TAG,
1484                                       /*lba*/ 0,
1485                                       /*reladr*/ 0,
1486                                       /*pmi*/ 0,
1487                                       rcaplong,
1488                                       /*sense_len*/ SSD_FULL_SIZE,
1489                                       /*timeout*/ 60000);
1490                 start_ccb->ccb_h.ccb_bp = NULL;
1491                 start_ccb->ccb_h.ccb_state = DA_CCB_PROBE2;
1492                 xpt_action(start_ccb);
1493                 break;
1494         }
1495         }
1496 }
1497
1498 static int
1499 cmd6workaround(union ccb *ccb)
1500 {
1501         struct scsi_rw_6 cmd6;
1502         struct scsi_rw_10 *cmd10;
1503         struct da_softc *softc;
1504         u_int8_t *cdb;
1505         int frozen;
1506
1507         cdb = ccb->csio.cdb_io.cdb_bytes;
1508
1509         /* Translation only possible if CDB is an array and cmd is R/W6 */
1510         if ((ccb->ccb_h.flags & CAM_CDB_POINTER) != 0 ||
1511             (*cdb != READ_6 && *cdb != WRITE_6))
1512                 return 0;
1513
1514         xpt_print(ccb->ccb_h.path, "READ(6)/WRITE(6) not supported, "
1515             "increasing minimum_cmd_size to 10.\n");
1516         softc = (struct da_softc *)xpt_path_periph(ccb->ccb_h.path)->softc;
1517         softc->minimum_cmd_size = 10;
1518
1519         bcopy(cdb, &cmd6, sizeof(struct scsi_rw_6));
1520         cmd10 = (struct scsi_rw_10 *)cdb;
1521         cmd10->opcode = (cmd6.opcode == READ_6) ? READ_10 : WRITE_10;
1522         cmd10->byte2 = 0;
1523         scsi_ulto4b(scsi_3btoul(cmd6.addr), cmd10->addr);
1524         cmd10->reserved = 0;
1525         scsi_ulto2b(cmd6.length, cmd10->length);
1526         cmd10->control = cmd6.control;
1527         ccb->csio.cdb_len = sizeof(*cmd10);
1528
1529         /* Requeue request, unfreezing queue if necessary */
1530         frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
1531         ccb->ccb_h.status = CAM_REQUEUE_REQ;
1532         xpt_action(ccb);
1533         if (frozen) {
1534                 cam_release_devq(ccb->ccb_h.path,
1535                                  /*relsim_flags*/0,
1536                                  /*reduction*/0,
1537                                  /*timeout*/0,
1538                                  /*getcount_only*/0);
1539         }
1540         return (ERESTART);
1541 }
1542
1543 static void
1544 dadone(struct cam_periph *periph, union ccb *done_ccb)
1545 {
1546         struct da_softc *softc;
1547         struct ccb_scsiio *csio;
1548         u_int32_t  priority;
1549
1550         softc = (struct da_softc *)periph->softc;
1551         priority = done_ccb->ccb_h.pinfo.priority;
1552         csio = &done_ccb->csio;
1553         switch (csio->ccb_h.ccb_state & DA_CCB_TYPE_MASK) {
1554         case DA_CCB_BUFFER_IO:
1555         {
1556                 struct bio *bp;
1557
1558                 bp = (struct bio *)done_ccb->ccb_h.ccb_bp;
1559                 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1560                         int error;
1561                         int sf;
1562
1563                         if ((csio->ccb_h.ccb_state & DA_CCB_RETRY_UA) != 0)
1564                                 sf = SF_RETRY_UA;
1565                         else
1566                                 sf = 0;
1567
1568                         error = daerror(done_ccb, CAM_RETRY_SELTO, sf);
1569                         if (error == ERESTART) {
1570                                 /*
1571                                  * A retry was scheuled, so
1572                                  * just return.
1573                                  */
1574                                 return;
1575                         }
1576                         if (error != 0) {
1577
1578                                 if (error == ENXIO) {
1579                                         /*
1580                                          * Catastrophic error.  Mark our pack as
1581                                          * invalid.
1582                                          */
1583                                         /*
1584                                          * XXX See if this is really a media
1585                                          * XXX change first?
1586                                          */
1587                                         xpt_print(periph->path,
1588                                             "Invalidating pack\n");
1589                                         softc->flags |= DA_FLAG_PACK_INVALID;
1590                                 }
1591
1592                                 /*
1593                                  * return all queued I/O with EIO, so that
1594                                  * the client can retry these I/Os in the
1595                                  * proper order should it attempt to recover.
1596                                  */
1597                                 bioq_flush(&softc->bio_queue, NULL, EIO);
1598                                 bp->bio_error = error;
1599                                 bp->bio_resid = bp->bio_bcount;
1600                                 bp->bio_flags |= BIO_ERROR;
1601                         } else {
1602                                 bp->bio_resid = csio->resid;
1603                                 bp->bio_error = 0;
1604                                 if (bp->bio_resid != 0)
1605                                         bp->bio_flags |= BIO_ERROR;
1606                         }
1607                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1608                                 cam_release_devq(done_ccb->ccb_h.path,
1609                                                  /*relsim_flags*/0,
1610                                                  /*reduction*/0,
1611                                                  /*timeout*/0,
1612                                                  /*getcount_only*/0);
1613                 } else {
1614                         if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1615                                 panic("REQ_CMP with QFRZN");
1616                         bp->bio_resid = csio->resid;
1617                         if (csio->resid > 0)
1618                                 bp->bio_flags |= BIO_ERROR;
1619                 }
1620
1621                 /*
1622                  * Block out any asyncronous callbacks
1623                  * while we touch the pending ccb list.
1624                  */
1625                 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1626                 softc->outstanding_cmds--;
1627                 if (softc->outstanding_cmds == 0)
1628                         softc->flags |= DA_FLAG_WENT_IDLE;
1629
1630                 biodone(bp);
1631                 break;
1632         }
1633         case DA_CCB_PROBE:
1634         case DA_CCB_PROBE2:
1635         {
1636                 struct     scsi_read_capacity_data *rdcap;
1637                 struct     scsi_read_capacity_data_long *rcaplong;
1638                 char       announce_buf[80];
1639
1640                 rdcap = NULL;
1641                 rcaplong = NULL;
1642                 if (softc->state == DA_STATE_PROBE)
1643                         rdcap =(struct scsi_read_capacity_data *)csio->data_ptr;
1644                 else
1645                         rcaplong = (struct scsi_read_capacity_data_long *)
1646                                 csio->data_ptr;
1647
1648                 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1649                         struct disk_params *dp;
1650                         uint32_t block_size;
1651                         uint64_t maxsector;
1652
1653                         if (softc->state == DA_STATE_PROBE) {
1654                                 block_size = scsi_4btoul(rdcap->length);
1655                                 maxsector = scsi_4btoul(rdcap->addr);
1656
1657                                 /*
1658                                  * According to SBC-2, if the standard 10
1659                                  * byte READ CAPACITY command returns 2^32,
1660                                  * we should issue the 16 byte version of
1661                                  * the command, since the device in question
1662                                  * has more sectors than can be represented
1663                                  * with the short version of the command.
1664                                  */
1665                                 if (maxsector == 0xffffffff) {
1666                                         softc->state = DA_STATE_PROBE2;
1667                                         free(rdcap, M_SCSIDA);
1668                                         xpt_release_ccb(done_ccb);
1669                                         xpt_schedule(periph, priority);
1670                                         return;
1671                                 }
1672                         } else {
1673                                 block_size = scsi_4btoul(rcaplong->length);
1674                                 maxsector = scsi_8btou64(rcaplong->addr);
1675                         }
1676
1677                         /*
1678                          * Because GEOM code just will panic us if we
1679                          * give them an 'illegal' value we'll avoid that
1680                          * here.
1681                          */
1682                         if (block_size == 0 && maxsector == 0) {
1683                                 snprintf(announce_buf, sizeof(announce_buf),
1684                                         "0MB (no media?)");
1685                         } else if (block_size >= MAXPHYS || block_size == 0) {
1686                                 xpt_print(periph->path,
1687                                     "unsupportable block size %ju\n",
1688                                     (uintmax_t) block_size);
1689                                 announce_buf[0] = '\0';
1690                                 cam_periph_invalidate(periph);
1691                         } else {
1692                                 dasetgeom(periph, block_size, maxsector);
1693                                 dp = &softc->params;
1694                                 snprintf(announce_buf, sizeof(announce_buf),
1695                                         "%juMB (%ju %u byte sectors: %dH %dS/T "
1696                                         "%dC)", (uintmax_t)
1697                                         (((uintmax_t)dp->secsize *
1698                                         dp->sectors) / (1024*1024)),
1699                                         (uintmax_t)dp->sectors,
1700                                         dp->secsize, dp->heads,
1701                                         dp->secs_per_track, dp->cylinders);
1702                         }
1703                 } else {
1704                         int     error;
1705
1706                         announce_buf[0] = '\0';
1707
1708                         /*
1709                          * Retry any UNIT ATTENTION type errors.  They
1710                          * are expected at boot.
1711                          */
1712                         error = daerror(done_ccb, CAM_RETRY_SELTO,
1713                                         SF_RETRY_UA|SF_NO_PRINT);
1714                         if (error == ERESTART) {
1715                                 /*
1716                                  * A retry was scheuled, so
1717                                  * just return.
1718                                  */
1719                                 return;
1720                         } else if (error != 0) {
1721                                 struct scsi_sense_data *sense;
1722                                 int asc, ascq;
1723                                 int sense_key, error_code;
1724                                 int have_sense;
1725                                 cam_status status;
1726                                 struct ccb_getdev cgd;
1727
1728                                 /* Don't wedge this device's queue */
1729                                 status = done_ccb->ccb_h.status;
1730                                 if ((status & CAM_DEV_QFRZN) != 0)
1731                                         cam_release_devq(done_ccb->ccb_h.path,
1732                                                          /*relsim_flags*/0,
1733                                                          /*reduction*/0,
1734                                                          /*timeout*/0,
1735                                                          /*getcount_only*/0);
1736
1737
1738                                 xpt_setup_ccb(&cgd.ccb_h,
1739                                               done_ccb->ccb_h.path,
1740                                               CAM_PRIORITY_NORMAL);
1741                                 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1742                                 xpt_action((union ccb *)&cgd);
1743
1744                                 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1745                                  || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1746                                  || ((status & CAM_AUTOSNS_VALID) == 0))
1747                                         have_sense = FALSE;
1748                                 else
1749                                         have_sense = TRUE;
1750
1751                                 if (have_sense) {
1752                                         sense = &csio->sense_data;
1753                                         scsi_extract_sense(sense, &error_code,
1754                                                            &sense_key,
1755                                                            &asc, &ascq);
1756                                 }
1757                                 /*
1758                                  * Attach to anything that claims to be a
1759                                  * direct access or optical disk device,
1760                                  * as long as it doesn't return a "Logical
1761                                  * unit not supported" (0x25) error.
1762                                  */
1763                                 if ((have_sense) && (asc != 0x25)
1764                                  && (error_code == SSD_CURRENT_ERROR)) {
1765                                         const char *sense_key_desc;
1766                                         const char *asc_desc;
1767
1768                                         scsi_sense_desc(sense_key, asc, ascq,
1769                                                         &cgd.inq_data,
1770                                                         &sense_key_desc,
1771                                                         &asc_desc);
1772                                         snprintf(announce_buf,
1773                                             sizeof(announce_buf),
1774                                                 "Attempt to query device "
1775                                                 "size failed: %s, %s",
1776                                                 sense_key_desc,
1777                                                 asc_desc);
1778                                 } else {
1779                                         if (have_sense)
1780                                                 scsi_sense_print(
1781                                                         &done_ccb->csio);
1782                                         else {
1783                                                 xpt_print(periph->path,
1784                                                     "got CAM status %#x\n",
1785                                                     done_ccb->ccb_h.status);
1786                                         }
1787
1788                                         xpt_print(periph->path, "fatal error, "
1789                                             "failed to attach to device\n");
1790
1791                                         /*
1792                                          * Free up resources.
1793                                          */
1794                                         cam_periph_invalidate(periph);
1795                                 }
1796                         }
1797                 }
1798                 free(csio->data_ptr, M_SCSIDA);
1799                 if (announce_buf[0] != '\0') {
1800                         xpt_announce_periph(periph, announce_buf);
1801                         /*
1802                          * Create our sysctl variables, now that we know
1803                          * we have successfully attached.
1804                          */
1805                         (void) cam_periph_acquire(periph);      /* increase the refcount */
1806                         taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1807                 }
1808                 softc->state = DA_STATE_NORMAL;
1809                 /*
1810                  * Since our peripheral may be invalidated by an error
1811                  * above or an external event, we must release our CCB
1812                  * before releasing the probe lock on the peripheral.
1813                  * The peripheral will only go away once the last lock
1814                  * is removed, and we need it around for the CCB release
1815                  * operation.
1816                  */
1817                 xpt_release_ccb(done_ccb);
1818                 cam_periph_unhold(periph);
1819                 return;
1820         }
1821         case DA_CCB_WAITING:
1822         {
1823                 /* Caller will release the CCB */
1824                 wakeup(&done_ccb->ccb_h.cbfcnp);
1825                 return;
1826         }
1827         case DA_CCB_DUMP:
1828                 /* No-op.  We're polling */
1829                 return;
1830         default:
1831                 break;
1832         }
1833         xpt_release_ccb(done_ccb);
1834 }
1835
1836 static int
1837 daerror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
1838 {
1839         struct da_softc   *softc;
1840         struct cam_periph *periph;
1841         int error;
1842
1843         periph = xpt_path_periph(ccb->ccb_h.path);
1844         softc = (struct da_softc *)periph->softc;
1845
1846         /*
1847          * Automatically detect devices that do not support
1848          * READ(6)/WRITE(6) and upgrade to using 10 byte cdbs.
1849          */
1850         error = 0;
1851         if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
1852                 error = cmd6workaround(ccb);
1853         } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
1854                    CAM_SCSI_STATUS_ERROR)
1855          && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
1856          && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
1857          && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
1858          && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
1859                 int sense_key, error_code, asc, ascq;
1860
1861                 scsi_extract_sense(&ccb->csio.sense_data,
1862                                    &error_code, &sense_key, &asc, &ascq);
1863                 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
1864                         error = cmd6workaround(ccb);
1865         }
1866         if (error == ERESTART)
1867                 return (ERESTART);
1868
1869         /*
1870          * XXX
1871          * Until we have a better way of doing pack validation,
1872          * don't treat UAs as errors.
1873          */
1874         sense_flags |= SF_RETRY_UA;
1875         return(cam_periph_error(ccb, cam_flags, sense_flags,
1876                                 &softc->saved_ccb));
1877 }
1878
1879 static void
1880 daprevent(struct cam_periph *periph, int action)
1881 {
1882         struct  da_softc *softc;
1883         union   ccb *ccb;
1884         int     error;
1885
1886         softc = (struct da_softc *)periph->softc;
1887
1888         if (((action == PR_ALLOW)
1889           && (softc->flags & DA_FLAG_PACK_LOCKED) == 0)
1890          || ((action == PR_PREVENT)
1891           && (softc->flags & DA_FLAG_PACK_LOCKED) != 0)) {
1892                 return;
1893         }
1894
1895         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1896
1897         scsi_prevent(&ccb->csio,
1898                      /*retries*/1,
1899                      /*cbcfp*/dadone,
1900                      MSG_SIMPLE_Q_TAG,
1901                      action,
1902                      SSD_FULL_SIZE,
1903                      5000);
1904
1905         error = cam_periph_runccb(ccb, /*error_routine*/NULL, CAM_RETRY_SELTO,
1906                                   SF_RETRY_UA, softc->disk->d_devstat);
1907
1908         if (error == 0) {
1909                 if (action == PR_ALLOW)
1910                         softc->flags &= ~DA_FLAG_PACK_LOCKED;
1911                 else
1912                         softc->flags |= DA_FLAG_PACK_LOCKED;
1913         }
1914
1915         xpt_release_ccb(ccb);
1916 }
1917
1918 static int
1919 dagetcapacity(struct cam_periph *periph)
1920 {
1921         struct da_softc *softc;
1922         union ccb *ccb;
1923         struct scsi_read_capacity_data *rcap;
1924         struct scsi_read_capacity_data_long *rcaplong;
1925         uint32_t block_len;
1926         uint64_t maxsector;
1927         int error;
1928         u_int32_t sense_flags;
1929
1930         softc = (struct da_softc *)periph->softc;
1931         block_len = 0;
1932         maxsector = 0;
1933         error = 0;
1934         sense_flags = SF_RETRY_UA;
1935         if (softc->flags & DA_FLAG_PACK_REMOVABLE)
1936                 sense_flags |= SF_NO_PRINT;
1937
1938         /* Do a read capacity */
1939         rcap = (struct scsi_read_capacity_data *)malloc(sizeof(*rcaplong),
1940                                                         M_SCSIDA,
1941                                                         M_NOWAIT);
1942         if (rcap == NULL)
1943                 return (ENOMEM);
1944
1945         ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
1946         scsi_read_capacity(&ccb->csio,
1947                            /*retries*/4,
1948                            /*cbfncp*/dadone,
1949                            MSG_SIMPLE_Q_TAG,
1950                            rcap,
1951                            SSD_FULL_SIZE,
1952                            /*timeout*/60000);
1953         ccb->ccb_h.ccb_bp = NULL;
1954
1955         error = cam_periph_runccb(ccb, daerror,
1956                                   /*cam_flags*/CAM_RETRY_SELTO,
1957                                   sense_flags,
1958                                   softc->disk->d_devstat);
1959
1960         if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1961                 cam_release_devq(ccb->ccb_h.path,
1962                                  /*relsim_flags*/0,
1963                                  /*reduction*/0,
1964                                  /*timeout*/0,
1965                                  /*getcount_only*/0);
1966
1967         if (error == 0) {
1968                 block_len = scsi_4btoul(rcap->length);
1969                 maxsector = scsi_4btoul(rcap->addr);
1970
1971                 if (maxsector != 0xffffffff)
1972                         goto done;
1973         } else
1974                 goto done;
1975
1976         rcaplong = (struct scsi_read_capacity_data_long *)rcap;
1977
1978         scsi_read_capacity_16(&ccb->csio,
1979                               /*retries*/ 4,
1980                               /*cbfcnp*/ dadone,
1981                               /*tag_action*/ MSG_SIMPLE_Q_TAG,
1982                               /*lba*/ 0,
1983                               /*reladr*/ 0,
1984                               /*pmi*/ 0,
1985                               rcaplong,
1986                               /*sense_len*/ SSD_FULL_SIZE,
1987                               /*timeout*/ 60000);
1988         ccb->ccb_h.ccb_bp = NULL;
1989
1990         error = cam_periph_runccb(ccb, daerror,
1991                                   /*cam_flags*/CAM_RETRY_SELTO,
1992                                   sense_flags,
1993                                   softc->disk->d_devstat);
1994
1995         if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
1996                 cam_release_devq(ccb->ccb_h.path,
1997                                  /*relsim_flags*/0,
1998                                  /*reduction*/0,
1999                                  /*timeout*/0,
2000                                  /*getcount_only*/0);
2001
2002         if (error == 0) {
2003                 block_len = scsi_4btoul(rcaplong->length);
2004                 maxsector = scsi_8btou64(rcaplong->addr);
2005         }
2006
2007 done:
2008
2009         if (error == 0) {
2010                 if (block_len >= MAXPHYS || block_len == 0) {
2011                         xpt_print(periph->path,
2012                             "unsupportable block size %ju\n",
2013                             (uintmax_t) block_len);
2014                         error = EINVAL;
2015                 } else
2016                         dasetgeom(periph, block_len, maxsector);
2017         }
2018
2019         xpt_release_ccb(ccb);
2020
2021         free(rcap, M_SCSIDA);
2022
2023         return (error);
2024 }
2025
2026 static void
2027 dasetgeom(struct cam_periph *periph, uint32_t block_len, uint64_t maxsector)
2028 {
2029         struct ccb_calc_geometry ccg;
2030         struct da_softc *softc;
2031         struct disk_params *dp;
2032
2033         softc = (struct da_softc *)periph->softc;
2034
2035         dp = &softc->params;
2036         dp->secsize = block_len;
2037         dp->sectors = maxsector + 1;
2038         /*
2039          * Have the controller provide us with a geometry
2040          * for this disk.  The only time the geometry
2041          * matters is when we boot and the controller
2042          * is the only one knowledgeable enough to come
2043          * up with something that will make this a bootable
2044          * device.
2045          */
2046         xpt_setup_ccb(&ccg.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2047         ccg.ccb_h.func_code = XPT_CALC_GEOMETRY;
2048         ccg.block_size = dp->secsize;
2049         ccg.volume_size = dp->sectors;
2050         ccg.heads = 0;
2051         ccg.secs_per_track = 0;
2052         ccg.cylinders = 0;
2053         xpt_action((union ccb*)&ccg);
2054         if ((ccg.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2055                 /*
2056                  * We don't know what went wrong here- but just pick
2057                  * a geometry so we don't have nasty things like divide
2058                  * by zero.
2059                  */
2060                 dp->heads = 255;
2061                 dp->secs_per_track = 255;
2062                 dp->cylinders = dp->sectors / (255 * 255);
2063                 if (dp->cylinders == 0) {
2064                         dp->cylinders = 1;
2065                 }
2066         } else {
2067                 dp->heads = ccg.heads;
2068                 dp->secs_per_track = ccg.secs_per_track;
2069                 dp->cylinders = ccg.cylinders;
2070         }
2071 }
2072
2073 static void
2074 dasendorderedtag(void *arg)
2075 {
2076         struct da_softc *softc = arg;
2077
2078         if (da_send_ordered) {
2079                 if ((softc->ordered_tag_count == 0)
2080                  && ((softc->flags & DA_FLAG_WENT_IDLE) == 0)) {
2081                         softc->flags |= DA_FLAG_NEED_OTAG;
2082                 }
2083                 if (softc->outstanding_cmds > 0)
2084                         softc->flags &= ~DA_FLAG_WENT_IDLE;
2085
2086                 softc->ordered_tag_count = 0;
2087         }
2088         /* Queue us up again */
2089         callout_reset(&softc->sendordered_c,
2090             (DA_DEFAULT_TIMEOUT * hz) / DA_ORDEREDTAG_INTERVAL,
2091             dasendorderedtag, softc);
2092 }
2093
2094 /*
2095  * Step through all DA peripheral drivers, and if the device is still open,
2096  * sync the disk cache to physical media.
2097  */
2098 static void
2099 dashutdown(void * arg, int howto)
2100 {
2101         struct cam_periph *periph;
2102         struct da_softc *softc;
2103
2104         TAILQ_FOREACH(periph, &dadriver.units, unit_links) {
2105                 union ccb ccb;
2106
2107                 cam_periph_lock(periph);
2108                 softc = (struct da_softc *)periph->softc;
2109
2110                 /*
2111                  * We only sync the cache if the drive is still open, and
2112                  * if the drive is capable of it..
2113                  */
2114                 if (((softc->flags & DA_FLAG_OPEN) == 0)
2115                  || (softc->quirks & DA_Q_NO_SYNC_CACHE)) {
2116                         cam_periph_unlock(periph);
2117                         continue;
2118                 }
2119
2120                 xpt_setup_ccb(&ccb.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
2121
2122                 ccb.ccb_h.ccb_state = DA_CCB_DUMP;
2123                 scsi_synchronize_cache(&ccb.csio,
2124                                        /*retries*/1,
2125                                        /*cbfcnp*/dadone,
2126                                        MSG_SIMPLE_Q_TAG,
2127                                        /*begin_lba*/0, /* whole disk */
2128                                        /*lb_count*/0,
2129                                        SSD_FULL_SIZE,
2130                                        60 * 60 * 1000);
2131
2132                 xpt_polled_action(&ccb);
2133
2134                 if ((ccb.ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
2135                         if (((ccb.ccb_h.status & CAM_STATUS_MASK) ==
2136                              CAM_SCSI_STATUS_ERROR)
2137                          && (ccb.csio.scsi_status == SCSI_STATUS_CHECK_COND)){
2138                                 int error_code, sense_key, asc, ascq;
2139
2140                                 scsi_extract_sense(&ccb.csio.sense_data,
2141                                                    &error_code, &sense_key,
2142                                                    &asc, &ascq);
2143
2144                                 if (sense_key != SSD_KEY_ILLEGAL_REQUEST)
2145                                         scsi_sense_print(&ccb.csio);
2146                         } else {
2147                                 xpt_print(periph->path, "Synchronize "
2148                                     "cache failed, status == 0x%x, scsi status "
2149                                     "== 0x%x\n", ccb.ccb_h.status,
2150                                     ccb.csio.scsi_status);
2151                         }
2152                 }
2153
2154                 if ((ccb.ccb_h.status & CAM_DEV_QFRZN) != 0)
2155                         cam_release_devq(ccb.ccb_h.path,
2156                                          /*relsim_flags*/0,
2157                                          /*reduction*/0,
2158                                          /*timeout*/0,
2159                                          /*getcount_only*/0);
2160                 cam_periph_unlock(periph);
2161         }
2162 }
2163
2164 #else /* !_KERNEL */
2165
2166 /*
2167  * XXX This is only left out of the kernel build to silence warnings.  If,
2168  * for some reason this function is used in the kernel, the ifdefs should
2169  * be moved so it is included both in the kernel and userland.
2170  */
2171 void
2172 scsi_format_unit(struct ccb_scsiio *csio, u_int32_t retries,
2173                  void (*cbfcnp)(struct cam_periph *, union ccb *),
2174                  u_int8_t tag_action, u_int8_t byte2, u_int16_t ileave,
2175                  u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
2176                  u_int32_t timeout)
2177 {
2178         struct scsi_format_unit *scsi_cmd;
2179
2180         scsi_cmd = (struct scsi_format_unit *)&csio->cdb_io.cdb_bytes;
2181         scsi_cmd->opcode = FORMAT_UNIT;
2182         scsi_cmd->byte2 = byte2;
2183         scsi_ulto2b(ileave, scsi_cmd->interleave);
2184
2185         cam_fill_csio(csio,
2186                       retries,
2187                       cbfcnp,
2188                       /*flags*/ (dxfer_len > 0) ? CAM_DIR_OUT : CAM_DIR_NONE,
2189                       tag_action,
2190                       data_ptr,
2191                       dxfer_len,
2192                       sense_len,
2193                       sizeof(*scsi_cmd),
2194                       timeout);
2195 }
2196
2197 #endif /* _KERNEL */