The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/cam/scsi/scsi_all.h

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    1 /*-
    2  * Largely written by Julian Elischer (julian@tfs.com)
    3  * for TRW Financial Systems.
    4  *
    5  * TRW Financial Systems, in accordance with their agreement with Carnegie
    6  * Mellon University, makes this software available to CMU to distribute
    7  * or use in any manner that they see fit as long as this message is kept with
    8  * the software. For this reason TFS also grants any other persons or
    9  * organisations permission to use or modify this software.
   10  *
   11  * TFS supplies this software to be publicly redistributed
   12  * on the understanding that TFS is not responsible for the correct
   13  * functioning of this software in any circumstances.
   14  *
   15  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
   16  *
   17  * $FreeBSD: releng/6.3/sys/cam/scsi/scsi_all.h 162172 2006-09-09 07:21:18Z ken $
   18  */
   19 
   20 /*
   21  * SCSI general  interface description
   22  */
   23 
   24 #ifndef _SCSI_SCSI_ALL_H
   25 #define _SCSI_SCSI_ALL_H 1
   26 
   27 #include <sys/cdefs.h>
   28 
   29 #ifdef _KERNEL
   30 /*
   31  * This is the number of seconds we wait for devices to settle after a SCSI
   32  * bus reset.
   33  */
   34 extern int scsi_delay;
   35 #endif /* _KERNEL */
   36 
   37 /*
   38  * SCSI command format
   39  */
   40 
   41 /*
   42  * Define dome bits that are in ALL (or a lot of) scsi commands
   43  */
   44 #define SCSI_CTL_LINK           0x01
   45 #define SCSI_CTL_FLAG           0x02
   46 #define SCSI_CTL_VENDOR         0xC0
   47 #define SCSI_CMD_LUN            0xA0    /* these two should not be needed */
   48 #define SCSI_CMD_LUN_SHIFT      5       /* LUN in the cmd is no longer SCSI */
   49 
   50 #define SCSI_MAX_CDBLEN         16      /* 
   51                                          * 16 byte commands are in the 
   52                                          * SCSI-3 spec 
   53                                          */
   54 #if defined(CAM_MAX_CDBLEN) && (CAM_MAX_CDBLEN < SCSI_MAX_CDBLEN)
   55 #error "CAM_MAX_CDBLEN cannot be less than SCSI_MAX_CDBLEN"
   56 #endif
   57 
   58 /* 6byte CDBs special case 0 length to be 256 */
   59 #define SCSI_CDB6_LEN(len)      ((len) == 0 ? 256 : len)
   60 
   61 /*
   62  * This type defines actions to be taken when a particular sense code is
   63  * received.  Right now, these flags are only defined to take up 16 bits,
   64  * but can be expanded in the future if necessary.
   65  */
   66 typedef enum {
   67         SS_NOP      = 0x000000, /* Do nothing */
   68         SS_RETRY    = 0x010000, /* Retry the command */
   69         SS_FAIL     = 0x020000, /* Bail out */
   70         SS_START    = 0x030000, /* Send a Start Unit command to the device,
   71                                  * then retry the original command.
   72                                  */
   73         SS_TUR      = 0x040000, /* Send a Test Unit Ready command to the
   74                                  * device, then retry the original command.
   75                                  */
   76         SS_REQSENSE = 0x050000, /* Send a RequestSense command to the
   77                                  * device, then retry the original command.
   78                                  */
   79         SS_MASK     = 0xff0000
   80 } scsi_sense_action;
   81 
   82 typedef enum {
   83         SSQ_NONE                = 0x0000,
   84         SSQ_DECREMENT_COUNT     = 0x0100,  /* Decrement the retry count */
   85         SSQ_MANY                = 0x0200,  /* send lots of recovery commands */
   86         SSQ_RANGE               = 0x0400,  /*
   87                                             * This table entry represents the
   88                                             * end of a range of ASCQs that
   89                                             * have identical error actions
   90                                             * and text.
   91                                             */
   92         SSQ_PRINT_SENSE         = 0x0800,
   93         SSQ_MASK                = 0xff00
   94 } scsi_sense_action_qualifier;
   95 
   96 /* Mask for error status values */
   97 #define SS_ERRMASK      0xff
   98 
   99 /* The default, retyable, error action */
  100 #define SS_RDEF         SS_RETRY|SSQ_DECREMENT_COUNT|SSQ_PRINT_SENSE|EIO
  101 
  102 /* The retyable, error action, with table specified error code */
  103 #define SS_RET          SS_RETRY|SSQ_DECREMENT_COUNT|SSQ_PRINT_SENSE
  104 
  105 /* Fatal error action, with table specified error code */
  106 #define SS_FATAL        SS_FAIL|SSQ_PRINT_SENSE
  107 
  108 struct scsi_generic
  109 {
  110         u_int8_t opcode;
  111         u_int8_t bytes[11];
  112 };
  113 
  114 struct scsi_request_sense
  115 {
  116         u_int8_t opcode;
  117         u_int8_t byte2;
  118         u_int8_t unused[2];
  119         u_int8_t length;
  120         u_int8_t control;
  121 };
  122 
  123 struct scsi_test_unit_ready
  124 {
  125         u_int8_t opcode;
  126         u_int8_t byte2;
  127         u_int8_t unused[3];
  128         u_int8_t control;
  129 };
  130 
  131 struct scsi_send_diag
  132 {
  133         u_int8_t opcode;
  134         u_int8_t byte2;
  135 #define SSD_UOL         0x01
  136 #define SSD_DOL         0x02
  137 #define SSD_SELFTEST    0x04
  138 #define SSD_PF          0x10
  139         u_int8_t unused[1];
  140         u_int8_t paramlen[2];
  141         u_int8_t control;
  142 };
  143 
  144 struct scsi_sense
  145 {
  146         u_int8_t opcode;
  147         u_int8_t byte2;
  148         u_int8_t unused[2];
  149         u_int8_t length;
  150         u_int8_t control;
  151 };
  152 
  153 struct scsi_inquiry
  154 {
  155         u_int8_t opcode;
  156         u_int8_t byte2;
  157 #define SI_EVPD 0x01
  158         u_int8_t page_code;
  159         u_int8_t reserved;
  160         u_int8_t length;
  161         u_int8_t control;
  162 };
  163 
  164 struct scsi_mode_sense_6
  165 {
  166         u_int8_t opcode;
  167         u_int8_t byte2;
  168 #define SMS_DBD                         0x08
  169         u_int8_t page;
  170 #define SMS_PAGE_CODE                   0x3F
  171 #define SMS_VENDOR_SPECIFIC_PAGE        0x00
  172 #define SMS_DISCONNECT_RECONNECT_PAGE   0x02
  173 #define SMS_PERIPHERAL_DEVICE_PAGE      0x09
  174 #define SMS_CONTROL_MODE_PAGE           0x0A
  175 #define SMS_ALL_PAGES_PAGE              0x3F
  176 #define SMS_PAGE_CTRL_MASK              0xC0
  177 #define SMS_PAGE_CTRL_CURRENT           0x00
  178 #define SMS_PAGE_CTRL_CHANGEABLE        0x40
  179 #define SMS_PAGE_CTRL_DEFAULT           0x80
  180 #define SMS_PAGE_CTRL_SAVED             0xC0
  181         u_int8_t unused;
  182         u_int8_t length;
  183         u_int8_t control;
  184 };
  185 
  186 struct scsi_mode_sense_10
  187 {
  188         u_int8_t opcode;
  189         u_int8_t byte2;         /* same bits as small version */
  190         u_int8_t page;          /* same bits as small version */
  191         u_int8_t unused[4];
  192         u_int8_t length[2];
  193         u_int8_t control;
  194 };
  195 
  196 struct scsi_mode_select_6
  197 {
  198         u_int8_t opcode;
  199         u_int8_t byte2;
  200 #define SMS_SP  0x01
  201 #define SMS_PF  0x10
  202         u_int8_t unused[2];
  203         u_int8_t length;
  204         u_int8_t control;
  205 };
  206 
  207 struct scsi_mode_select_10
  208 {
  209         u_int8_t opcode;
  210         u_int8_t byte2;         /* same bits as small version */
  211         u_int8_t unused[5];
  212         u_int8_t length[2];
  213         u_int8_t control;
  214 };
  215 
  216 /*
  217  * When sending a mode select to a tape drive, the medium type must be 0.
  218  */
  219 struct scsi_mode_hdr_6
  220 {
  221         u_int8_t datalen;
  222         u_int8_t medium_type;
  223         u_int8_t dev_specific;
  224         u_int8_t block_descr_len;
  225 };
  226 
  227 struct scsi_mode_hdr_10
  228 {
  229         u_int8_t datalen[2];
  230         u_int8_t medium_type;
  231         u_int8_t dev_specific;
  232         u_int8_t reserved[2];
  233         u_int8_t block_descr_len[2];
  234 };
  235 
  236 struct scsi_mode_block_descr
  237 {
  238         u_int8_t density_code;
  239         u_int8_t num_blocks[3];
  240         u_int8_t reserved;
  241         u_int8_t block_len[3];
  242 };
  243 
  244 struct scsi_log_sense
  245 {
  246         u_int8_t opcode;
  247         u_int8_t byte2;
  248 #define SLS_SP                          0x01
  249 #define SLS_PPC                         0x02
  250         u_int8_t page;
  251 #define SLS_PAGE_CODE                   0x3F
  252 #define SLS_ALL_PAGES_PAGE              0x00
  253 #define SLS_OVERRUN_PAGE                0x01
  254 #define SLS_ERROR_WRITE_PAGE            0x02
  255 #define SLS_ERROR_READ_PAGE             0x03
  256 #define SLS_ERROR_READREVERSE_PAGE      0x04
  257 #define SLS_ERROR_VERIFY_PAGE           0x05
  258 #define SLS_ERROR_NONMEDIUM_PAGE        0x06
  259 #define SLS_ERROR_LASTN_PAGE            0x07
  260 #define SLS_PAGE_CTRL_MASK              0xC0
  261 #define SLS_PAGE_CTRL_THRESHOLD         0x00
  262 #define SLS_PAGE_CTRL_CUMULATIVE        0x40
  263 #define SLS_PAGE_CTRL_THRESH_DEFAULT    0x80
  264 #define SLS_PAGE_CTRL_CUMUL_DEFAULT     0xC0
  265         u_int8_t reserved[2];
  266         u_int8_t paramptr[2];
  267         u_int8_t length[2];
  268         u_int8_t control;
  269 };
  270 
  271 struct scsi_log_select
  272 {
  273         u_int8_t opcode;
  274         u_int8_t byte2;
  275 /*      SLS_SP                          0x01 */
  276 #define SLS_PCR                         0x02
  277         u_int8_t page;
  278 /*      SLS_PAGE_CTRL_MASK              0xC0 */
  279 /*      SLS_PAGE_CTRL_THRESHOLD         0x00 */
  280 /*      SLS_PAGE_CTRL_CUMULATIVE        0x40 */
  281 /*      SLS_PAGE_CTRL_THRESH_DEFAULT    0x80 */
  282 /*      SLS_PAGE_CTRL_CUMUL_DEFAULT     0xC0 */
  283         u_int8_t reserved[4];
  284         u_int8_t length[2];
  285         u_int8_t control;
  286 };
  287 
  288 struct scsi_log_header
  289 {
  290         u_int8_t page;
  291         u_int8_t reserved;
  292         u_int8_t datalen[2];
  293 };
  294 
  295 struct scsi_log_param_header {
  296         u_int8_t param_code[2];
  297         u_int8_t param_control;
  298 #define SLP_LP                          0x01
  299 #define SLP_LBIN                        0x02
  300 #define SLP_TMC_MASK                    0x0C
  301 #define SLP_TMC_ALWAYS                  0x00
  302 #define SLP_TMC_EQUAL                   0x04
  303 #define SLP_TMC_NOTEQUAL                0x08
  304 #define SLP_TMC_GREATER                 0x0C
  305 #define SLP_ETC                         0x10
  306 #define SLP_TSD                         0x20
  307 #define SLP_DS                          0x40
  308 #define SLP_DU                          0x80
  309         u_int8_t param_len;
  310 };
  311 
  312 struct scsi_control_page {
  313         u_int8_t page_code;
  314         u_int8_t page_length;
  315         u_int8_t rlec;
  316 #define SCB_RLEC                        0x01    /*Report Log Exception Cond*/
  317         u_int8_t queue_flags;
  318 #define SCP_QUEUE_ALG_MASK              0xF0
  319 #define SCP_QUEUE_ALG_RESTRICTED        0x00
  320 #define SCP_QUEUE_ALG_UNRESTRICTED      0x10
  321 #define SCP_QUEUE_ERR                   0x02    /*Queued I/O aborted for CACs*/
  322 #define SCP_QUEUE_DQUE                  0x01    /*Queued I/O disabled*/
  323         u_int8_t eca_and_aen;
  324 #define SCP_EECA                        0x80    /*Enable Extended CA*/
  325 #define SCP_RAENP                       0x04    /*Ready AEN Permission*/
  326 #define SCP_UAAENP                      0x02    /*UA AEN Permission*/
  327 #define SCP_EAENP                       0x01    /*Error AEN Permission*/
  328         u_int8_t reserved;
  329         u_int8_t aen_holdoff_period[2];
  330 };
  331 
  332 struct scsi_reserve
  333 {
  334         u_int8_t opcode;
  335         u_int8_t byte2;
  336         u_int8_t unused[2];
  337         u_int8_t length;
  338         u_int8_t control;
  339 };
  340 
  341 struct scsi_release
  342 {
  343         u_int8_t opcode;
  344         u_int8_t byte2;
  345         u_int8_t unused[2];
  346         u_int8_t length;
  347         u_int8_t control;
  348 };
  349 
  350 struct scsi_prevent
  351 {
  352         u_int8_t opcode;
  353         u_int8_t byte2;
  354         u_int8_t unused[2];
  355         u_int8_t how;
  356         u_int8_t control;
  357 };
  358 #define PR_PREVENT 0x01
  359 #define PR_ALLOW   0x00
  360 
  361 struct scsi_sync_cache
  362 {
  363         u_int8_t opcode;
  364         u_int8_t byte2;
  365         u_int8_t begin_lba[4];
  366         u_int8_t reserved;
  367         u_int8_t lb_count[2];
  368         u_int8_t control;       
  369 };
  370 
  371 
  372 struct scsi_changedef
  373 {
  374         u_int8_t opcode;
  375         u_int8_t byte2;
  376         u_int8_t unused1;
  377         u_int8_t how;
  378         u_int8_t unused[4];
  379         u_int8_t datalen;
  380         u_int8_t control;
  381 };
  382 
  383 struct scsi_read_buffer
  384 {
  385         u_int8_t opcode;
  386         u_int8_t byte2;
  387 #define RWB_MODE                0x07
  388 #define RWB_MODE_HDR_DATA       0x00
  389 #define RWB_MODE_DATA           0x02
  390 #define RWB_MODE_DOWNLOAD       0x04
  391 #define RWB_MODE_DOWNLOAD_SAVE  0x05
  392         u_int8_t buffer_id;
  393         u_int8_t offset[3];
  394         u_int8_t length[3];
  395         u_int8_t control;
  396 };
  397 
  398 struct scsi_write_buffer
  399 {
  400         u_int8_t opcode;
  401         u_int8_t byte2;
  402         u_int8_t buffer_id;
  403         u_int8_t offset[3];
  404         u_int8_t length[3];
  405         u_int8_t control;
  406 };
  407 
  408 struct scsi_rw_6
  409 {
  410         u_int8_t opcode;
  411         u_int8_t addr[3];
  412 /* only 5 bits are valid in the MSB address byte */
  413 #define SRW_TOPADDR     0x1F
  414         u_int8_t length;
  415         u_int8_t control;
  416 };
  417 
  418 struct scsi_rw_10
  419 {
  420         u_int8_t opcode;
  421 #define SRW10_RELADDR   0x01
  422 /* EBP defined for WRITE(10) only */
  423 #define SRW10_EBP       0x04
  424 #define SRW10_FUA       0x08
  425 #define SRW10_DPO       0x10
  426         u_int8_t byte2;
  427         u_int8_t addr[4];
  428         u_int8_t reserved;
  429         u_int8_t length[2];
  430         u_int8_t control;
  431 };
  432 
  433 struct scsi_rw_12
  434 {
  435         u_int8_t opcode;
  436 #define SRW12_RELADDR   0x01
  437 #define SRW12_FUA       0x08
  438 #define SRW12_DPO       0x10
  439         u_int8_t byte2;
  440         u_int8_t addr[4];
  441         u_int8_t length[4];
  442         u_int8_t reserved;
  443         u_int8_t control;
  444 };
  445 
  446 struct scsi_rw_16
  447 {
  448         u_int8_t opcode;
  449 #define SRW16_RELADDR   0x01
  450 #define SRW16_FUA       0x08
  451 #define SRW16_DPO       0x10
  452         u_int8_t byte2;
  453         u_int8_t addr[8];
  454         u_int8_t length[4];
  455         u_int8_t reserved;
  456         u_int8_t control;
  457 };
  458 
  459 struct scsi_start_stop_unit
  460 {
  461         u_int8_t opcode;
  462         u_int8_t byte2;
  463 #define SSS_IMMED               0x01
  464         u_int8_t reserved[2];
  465         u_int8_t how;
  466 #define SSS_START               0x01
  467 #define SSS_LOEJ                0x02
  468         u_int8_t control;
  469 };
  470 
  471 #define SC_SCSI_1 0x01
  472 #define SC_SCSI_2 0x03
  473 
  474 /*
  475  * Opcodes
  476  */
  477 
  478 #define TEST_UNIT_READY         0x00
  479 #define REQUEST_SENSE           0x03
  480 #define READ_6                  0x08
  481 #define WRITE_6                 0x0a
  482 #define INQUIRY                 0x12
  483 #define MODE_SELECT_6           0x15
  484 #define MODE_SENSE_6            0x1a
  485 #define START_STOP_UNIT         0x1b
  486 #define START_STOP              0x1b
  487 #define RESERVE                 0x16
  488 #define RELEASE                 0x17
  489 #define RECEIVE_DIAGNOSTIC      0x1c
  490 #define SEND_DIAGNOSTIC         0x1d
  491 #define PREVENT_ALLOW           0x1e
  492 #define READ_CAPACITY           0x25
  493 #define READ_10                 0x28
  494 #define WRITE_10                0x2a
  495 #define POSITION_TO_ELEMENT     0x2b
  496 #define SYNCHRONIZE_CACHE       0x35
  497 #define WRITE_BUFFER            0x3b
  498 #define READ_BUFFER             0x3c
  499 #define CHANGE_DEFINITION       0x40
  500 #define LOG_SELECT              0x4c
  501 #define LOG_SENSE               0x4d
  502 #define MODE_SELECT_10          0x55
  503 #define MODE_SENSE_10           0x5A
  504 #define READ_16                 0x88
  505 #define WRITE_16                0x8a
  506 #define SERVICE_ACTION_IN       0x9e
  507 #define REPORT_LUNS             0xA0
  508 #define MOVE_MEDIUM             0xa5
  509 #define READ_12                 0xa8
  510 #define WRITE_12                0xaa
  511 #define READ_ELEMENT_STATUS     0xb8
  512 
  513 
  514 /*
  515  * Device Types
  516  */
  517 #define T_DIRECT        0x00
  518 #define T_SEQUENTIAL    0x01
  519 #define T_PRINTER       0x02
  520 #define T_PROCESSOR     0x03
  521 #define T_WORM          0x04
  522 #define T_CDROM         0x05
  523 #define T_SCANNER       0x06
  524 #define T_OPTICAL       0x07
  525 #define T_CHANGER       0x08
  526 #define T_COMM          0x09
  527 #define T_ASC0          0x0a
  528 #define T_ASC1          0x0b
  529 #define T_STORARRAY     0x0c
  530 #define T_ENCLOSURE     0x0d
  531 #define T_RBC           0x0e
  532 #define T_OCRW          0x0f
  533 #define T_NODEVICE      0x1F
  534 #define T_ANY           0xFF    /* Used in Quirk table matches */
  535 
  536 #define T_REMOV         1
  537 #define T_FIXED         0
  538 
  539 /*
  540  * This length is the initial inquiry length used by the probe code, as    
  541  * well as the legnth necessary for scsi_print_inquiry() to function 
  542  * correctly.  If either use requires a different length in the future, 
  543  * the two values should be de-coupled.
  544  */
  545 #define SHORT_INQUIRY_LENGTH    36
  546 
  547 struct scsi_inquiry_data
  548 {
  549         u_int8_t device;
  550 #define SID_TYPE(inq_data) ((inq_data)->device & 0x1f)
  551 #define SID_QUAL(inq_data) (((inq_data)->device & 0xE0) >> 5)
  552 #define SID_QUAL_LU_CONNECTED   0x00    /*
  553                                          * The specified peripheral device
  554                                          * type is currently connected to
  555                                          * logical unit.  If the target cannot
  556                                          * determine whether or not a physical
  557                                          * device is currently connected, it
  558                                          * shall also use this peripheral
  559                                          * qualifier when returning the INQUIRY
  560                                          * data.  This peripheral qualifier
  561                                          * does not mean that the device is
  562                                          * ready for access by the initiator.
  563                                          */
  564 #define SID_QUAL_LU_OFFLINE     0x01    /*
  565                                          * The target is capable of supporting
  566                                          * the specified peripheral device type
  567                                          * on this logical unit; however, the
  568                                          * physical device is not currently
  569                                          * connected to this logical unit.
  570                                          */
  571 #define SID_QUAL_RSVD           0x02
  572 #define SID_QUAL_BAD_LU         0x03    /*
  573                                          * The target is not capable of
  574                                          * supporting a physical device on
  575                                          * this logical unit. For this
  576                                          * peripheral qualifier the peripheral
  577                                          * device type shall be set to 1Fh to
  578                                          * provide compatibility with previous
  579                                          * versions of SCSI. All other
  580                                          * peripheral device type values are
  581                                          * reserved for this peripheral
  582                                          * qualifier.
  583                                          */
  584 #define SID_QUAL_IS_VENDOR_UNIQUE(inq_data) ((SID_QUAL(inq_data) & 0x08) != 0)
  585         u_int8_t dev_qual2;
  586 #define SID_QUAL2       0x7F
  587 #define SID_IS_REMOVABLE(inq_data) (((inq_data)->dev_qual2 & 0x80) != 0)
  588         u_int8_t version;
  589 #define SID_ANSI_REV(inq_data) ((inq_data)->version & 0x07)
  590 #define         SCSI_REV_0              0
  591 #define         SCSI_REV_CCS            1
  592 #define         SCSI_REV_2              2
  593 #define         SCSI_REV_SPC            3
  594 #define         SCSI_REV_SPC2           4
  595 
  596 #define SID_ECMA        0x38
  597 #define SID_ISO         0xC0
  598         u_int8_t response_format;
  599 #define SID_AENC        0x80
  600 #define SID_TrmIOP      0x40
  601         u_int8_t additional_length;
  602         u_int8_t reserved;
  603         u_int8_t spc2_flags;
  604 #define SPC2_SID_MChngr         0x08
  605 #define SPC2_SID_MultiP         0x10
  606 #define SPC2_SID_EncServ        0x40
  607 #define SPC2_SID_BQueue         0x80
  608 
  609 #define INQ_DATA_TQ_ENABLED(iqd)                                \
  610     ((SID_ANSI_REV(iqd) < SCSI_REV_SPC2)? ((iqd)->flags & SID_CmdQue) : \
  611     (((iqd)->flags & SID_CmdQue) && !((iqd)->spc2_flags & SPC2_SID_BQueue)) || \
  612     (!((iqd)->flags & SID_CmdQue) && ((iqd)->spc2_flags & SPC2_SID_BQueue)))
  613 
  614 
  615         u_int8_t flags;
  616 #define SID_SftRe       0x01
  617 #define SID_CmdQue      0x02
  618 #define SID_Linked      0x08
  619 #define SID_Sync        0x10
  620 #define SID_WBus16      0x20
  621 #define SID_WBus32      0x40
  622 #define SID_RelAdr      0x80
  623 #define SID_VENDOR_SIZE   8
  624         char     vendor[SID_VENDOR_SIZE];
  625 #define SID_PRODUCT_SIZE  16
  626         char     product[SID_PRODUCT_SIZE];
  627 #define SID_REVISION_SIZE 4
  628         char     revision[SID_REVISION_SIZE];
  629         /*
  630          * The following fields were taken from SCSI Primary Commands - 2
  631          * (SPC-2) Revision 14, Dated 11 November 1999
  632          */
  633 #define SID_VENDOR_SPECIFIC_0_SIZE      20
  634         u_int8_t vendor_specific0[SID_VENDOR_SPECIFIC_0_SIZE];
  635         /*
  636          * An extension of SCSI Parallel Specific Values
  637          */
  638 #define SID_SPI_IUS             0x01
  639 #define SID_SPI_QAS             0x02
  640 #define SID_SPI_CLOCK_ST        0x00
  641 #define SID_SPI_CLOCK_DT        0x04
  642 #define SID_SPI_CLOCK_DT_ST     0x0C
  643 #define SID_SPI_MASK            0x0F
  644         u_int8_t spi3data;
  645         u_int8_t reserved2;
  646         /*
  647          * Version Descriptors, stored 2 byte values.
  648          */
  649         u_int8_t version1[2];
  650         u_int8_t version2[2];
  651         u_int8_t version3[2];
  652         u_int8_t version4[2];
  653         u_int8_t version5[2];
  654         u_int8_t version6[2];
  655         u_int8_t version7[2];
  656         u_int8_t version8[2];
  657 
  658         u_int8_t reserved3[22];
  659 
  660 #define SID_VENDOR_SPECIFIC_1_SIZE      160
  661         u_int8_t vendor_specific1[SID_VENDOR_SPECIFIC_1_SIZE];
  662 };
  663 
  664 struct scsi_vpd_unit_serial_number
  665 {
  666         u_int8_t device;
  667         u_int8_t page_code;
  668 #define SVPD_UNIT_SERIAL_NUMBER 0x80
  669         u_int8_t reserved;
  670         u_int8_t length; /* serial number length */
  671 #define SVPD_SERIAL_NUM_SIZE 251
  672         u_int8_t serial_num[SVPD_SERIAL_NUM_SIZE];
  673 };
  674 
  675 struct scsi_read_capacity
  676 {
  677         u_int8_t opcode;
  678         u_int8_t byte2;
  679         u_int8_t addr[4];
  680         u_int8_t unused[3];
  681         u_int8_t control;
  682 };
  683 
  684 struct scsi_read_capacity_16
  685 {
  686         uint8_t opcode;
  687 #define SRC16_SERVICE_ACTION    0x10
  688         uint8_t service_action;
  689         uint8_t addr[8];
  690         uint8_t alloc_len[4];
  691 #define SRC16_PMI               0x01
  692 #define SRC16_RELADR            0x02
  693         uint8_t reladr;
  694         uint8_t control;
  695 };
  696 
  697 struct scsi_read_capacity_data
  698 {
  699         u_int8_t addr[4];
  700         u_int8_t length[4];
  701 };
  702 
  703 struct scsi_read_capacity_data_long
  704 {
  705         uint8_t addr[8];
  706         uint8_t length[4];
  707 };
  708 
  709 struct scsi_report_luns
  710 {
  711         uint8_t opcode;
  712         uint8_t reserved1;
  713 #define RPL_REPORT_DEFAULT      0x00
  714 #define RPL_REPORT_WELLKNOWN    0x01
  715 #define RPL_REPORT_ALL          0x02
  716         uint8_t select_report;
  717         uint8_t reserved2[3];
  718         uint8_t length[4];
  719         uint8_t reserved3;
  720         uint8_t control;
  721 };
  722 
  723 struct scsi_report_luns_data {
  724         u_int8_t length[4];     /* length of LUN inventory, in bytes */
  725         u_int8_t reserved[4];   /* unused */
  726         /*
  727          * LUN inventory- we only support the type zero form for now.
  728          */
  729         struct {
  730                 u_int8_t lundata[8];
  731         } luns[0];
  732 };
  733 #define RPL_LUNDATA_PERIPH_BUS_MASK     0x3f
  734 #define RPL_LUNDATA_FLAT_LUN_MASK       0x3f
  735 #define RPL_LUNDATA_LUN_TARG_MASK       0x3f
  736 #define RPL_LUNDATA_LUN_BUS_MASK        0xe0
  737 #define RPL_LUNDATA_LUN_LUN_MASK        0x1f
  738 #define RPL_LUNDATA_EXT_LEN_MASK        0x30
  739 #define RPL_LUNDATA_EXT_EAM_MASK        0x0f
  740 #define RPL_LUNDATA_EXT_EAM_WK          0x01
  741 #define RPL_LUNDATA_EXT_EAM_NOT_SPEC    0x0f
  742 #define RPL_LUNDATA_ATYP_MASK   0xc0    /* MBZ for type 0 lun */
  743 #define RPL_LUNDATA_ATYP_PERIPH 0x00
  744 #define RPL_LUNDATA_ATYP_FLAT   0x40
  745 #define RPL_LUNDATA_ATYP_LUN    0x80
  746 #define RPL_LUNDATA_ATYP_EXTLUN 0xc0
  747 
  748 
  749 struct scsi_sense_data
  750 {
  751         u_int8_t error_code;
  752 #define SSD_ERRCODE                     0x7F
  753 #define         SSD_CURRENT_ERROR       0x70
  754 #define         SSD_DEFERRED_ERROR      0x71
  755 #define SSD_ERRCODE_VALID       0x80    
  756         u_int8_t segment;
  757         u_int8_t flags;
  758 #define SSD_KEY                         0x0F
  759 #define         SSD_KEY_NO_SENSE        0x00
  760 #define         SSD_KEY_RECOVERED_ERROR 0x01
  761 #define         SSD_KEY_NOT_READY       0x02
  762 #define         SSD_KEY_MEDIUM_ERROR    0x03
  763 #define         SSD_KEY_HARDWARE_ERROR  0x04
  764 #define         SSD_KEY_ILLEGAL_REQUEST 0x05
  765 #define         SSD_KEY_UNIT_ATTENTION  0x06
  766 #define         SSD_KEY_DATA_PROTECT    0x07
  767 #define         SSD_KEY_BLANK_CHECK     0x08
  768 #define         SSD_KEY_Vendor_Specific 0x09
  769 #define         SSD_KEY_COPY_ABORTED    0x0a
  770 #define         SSD_KEY_ABORTED_COMMAND 0x0b            
  771 #define         SSD_KEY_EQUAL           0x0c
  772 #define         SSD_KEY_VOLUME_OVERFLOW 0x0d
  773 #define         SSD_KEY_MISCOMPARE      0x0e
  774 #define         SSD_KEY_RESERVED        0x0f                    
  775 #define SSD_ILI         0x20
  776 #define SSD_EOM         0x40
  777 #define SSD_FILEMARK    0x80
  778         u_int8_t info[4];
  779         u_int8_t extra_len;
  780         u_int8_t cmd_spec_info[4];
  781         u_int8_t add_sense_code;
  782         u_int8_t add_sense_code_qual;
  783         u_int8_t fru;
  784         u_int8_t sense_key_spec[3];
  785 #define SSD_SCS_VALID           0x80
  786 #define SSD_FIELDPTR_CMD        0x40
  787 #define SSD_BITPTR_VALID        0x08
  788 #define SSD_BITPTR_VALUE        0x07
  789 #define SSD_MIN_SIZE 18
  790         u_int8_t extra_bytes[14];
  791 #define SSD_FULL_SIZE sizeof(struct scsi_sense_data)
  792 };
  793 
  794 struct scsi_mode_header_6
  795 {
  796         u_int8_t data_length;   /* Sense data length */
  797         u_int8_t medium_type;
  798         u_int8_t dev_spec;
  799         u_int8_t blk_desc_len;
  800 };
  801 
  802 struct scsi_mode_header_10
  803 {
  804         u_int8_t data_length[2];/* Sense data length */
  805         u_int8_t medium_type;
  806         u_int8_t dev_spec;
  807         u_int8_t unused[2];
  808         u_int8_t blk_desc_len[2];
  809 };
  810 
  811 struct scsi_mode_page_header
  812 {
  813         u_int8_t page_code;
  814         u_int8_t page_length;
  815 };
  816 
  817 struct scsi_mode_blk_desc
  818 {
  819         u_int8_t density;
  820         u_int8_t nblocks[3];
  821         u_int8_t reserved;
  822         u_int8_t blklen[3];
  823 };
  824 
  825 #define SCSI_DEFAULT_DENSITY    0x00    /* use 'default' density */
  826 #define SCSI_SAME_DENSITY       0x7f    /* use 'same' density- >= SCSI-2 only */
  827 
  828 
  829 /*
  830  * Status Byte
  831  */
  832 #define SCSI_STATUS_OK                  0x00
  833 #define SCSI_STATUS_CHECK_COND          0x02
  834 #define SCSI_STATUS_COND_MET            0x04
  835 #define SCSI_STATUS_BUSY                0x08
  836 #define SCSI_STATUS_INTERMED            0x10
  837 #define SCSI_STATUS_INTERMED_COND_MET   0x14
  838 #define SCSI_STATUS_RESERV_CONFLICT     0x18
  839 #define SCSI_STATUS_CMD_TERMINATED      0x22    /* Obsolete in SAM-2 */
  840 #define SCSI_STATUS_QUEUE_FULL          0x28
  841 #define SCSI_STATUS_ACA_ACTIVE          0x30
  842 #define SCSI_STATUS_TASK_ABORTED        0x40
  843 
  844 struct scsi_inquiry_pattern {
  845         u_int8_t   type;
  846         u_int8_t   media_type;
  847 #define SIP_MEDIA_REMOVABLE     0x01
  848 #define SIP_MEDIA_FIXED         0x02
  849         const char *vendor;
  850         const char *product;
  851         const char *revision;
  852 }; 
  853 
  854 struct scsi_static_inquiry_pattern {
  855         u_int8_t   type;
  856         u_int8_t   media_type;
  857         char       vendor[SID_VENDOR_SIZE+1];
  858         char       product[SID_PRODUCT_SIZE+1];
  859         char       revision[SID_REVISION_SIZE+1];
  860 };
  861 
  862 struct scsi_sense_quirk_entry {
  863         struct scsi_inquiry_pattern     inq_pat;
  864         int                             num_sense_keys;
  865         int                             num_ascs;
  866         struct sense_key_table_entry    *sense_key_info;
  867         struct asc_table_entry          *asc_info;
  868 };
  869 
  870 struct sense_key_table_entry {
  871         u_int8_t    sense_key;
  872         u_int32_t   action;
  873         const char *desc;
  874 };
  875 
  876 struct asc_table_entry {
  877         u_int8_t    asc;
  878         u_int8_t    ascq;
  879         u_int32_t   action;
  880         const char *desc;
  881 };
  882 
  883 struct op_table_entry {
  884         u_int8_t    opcode;
  885         u_int16_t   opmask;
  886         const char  *desc;
  887 };
  888 
  889 struct scsi_op_quirk_entry {
  890         struct scsi_inquiry_pattern     inq_pat;
  891         int                             num_ops;
  892         struct op_table_entry           *op_table;
  893 };
  894 
  895 typedef enum {
  896         SSS_FLAG_NONE           = 0x00,
  897         SSS_FLAG_PRINT_COMMAND  = 0x01
  898 } scsi_sense_string_flags;
  899 
  900 struct ccb_scsiio;
  901 struct cam_periph;
  902 union  ccb;
  903 #ifndef _KERNEL
  904 struct cam_device;
  905 #endif
  906 
  907 extern const char *scsi_sense_key_text[];
  908 
  909 struct sbuf;
  910 
  911 __BEGIN_DECLS
  912 void scsi_sense_desc(int sense_key, int asc, int ascq,
  913                      struct scsi_inquiry_data *inq_data,
  914                      const char **sense_key_desc, const char **asc_desc);
  915 scsi_sense_action scsi_error_action(struct ccb_scsiio* csio,
  916                                     struct scsi_inquiry_data *inq_data,
  917                                     u_int32_t sense_flags);
  918 const char *    scsi_status_string(struct ccb_scsiio *csio);
  919 #ifdef _KERNEL
  920 int             scsi_command_string(struct ccb_scsiio *csio, struct sbuf *sb);
  921 int             scsi_sense_sbuf(struct ccb_scsiio *csio, struct sbuf *sb,
  922                                 scsi_sense_string_flags flags);
  923 char *          scsi_sense_string(struct ccb_scsiio *csio,
  924                                   char *str, int str_len);
  925 void            scsi_sense_print(struct ccb_scsiio *csio);
  926 int             scsi_interpret_sense(union ccb *ccb, 
  927                                      u_int32_t sense_flags,
  928                                      u_int32_t *relsim_flags, 
  929                                      u_int32_t *reduction,
  930                                      u_int32_t *timeout,
  931                                      scsi_sense_action error_action);
  932 #else /* _KERNEL */
  933 int             scsi_command_string(struct cam_device *device,
  934                                     struct ccb_scsiio *csio, struct sbuf *sb);
  935 int             scsi_sense_sbuf(struct cam_device *device, 
  936                                 struct ccb_scsiio *csio, struct sbuf *sb,
  937                                 scsi_sense_string_flags flags);
  938 char *          scsi_sense_string(struct cam_device *device, 
  939                                   struct ccb_scsiio *csio,
  940                                   char *str, int str_len);
  941 void            scsi_sense_print(struct cam_device *device, 
  942                                  struct ccb_scsiio *csio, FILE *ofile);
  943 int             scsi_interpret_sense(struct cam_device *device,
  944                                      union ccb *ccb,
  945                                      u_int32_t sense_flags,
  946                                      u_int32_t *relsim_flags, 
  947                                      u_int32_t *reduction,
  948                                      u_int32_t *timeout,
  949                                      scsi_sense_action error_action);
  950 #endif /* _KERNEL */
  951 
  952 #define SF_RETRY_UA     0x01
  953 #define SF_NO_PRINT     0x02
  954 #define SF_QUIET_IR     0x04    /* Be quiet about Illegal Request reponses */
  955 #define SF_PRINT_ALWAYS 0x08
  956 
  957 
  958 const char *    scsi_op_desc(u_int16_t opcode, 
  959                              struct scsi_inquiry_data *inq_data);
  960 char *          scsi_cdb_string(u_int8_t *cdb_ptr, char *cdb_string,
  961                                 size_t len);
  962 
  963 void            scsi_print_inquiry(struct scsi_inquiry_data *inq_data);
  964 
  965 u_int           scsi_calc_syncsrate(u_int period_factor);
  966 u_int           scsi_calc_syncparam(u_int period);
  967         
  968 void            scsi_test_unit_ready(struct ccb_scsiio *csio, u_int32_t retries,
  969                                      void (*cbfcnp)(struct cam_periph *, 
  970                                                     union ccb *),
  971                                      u_int8_t tag_action, 
  972                                      u_int8_t sense_len, u_int32_t timeout);
  973 
  974 void            scsi_request_sense(struct ccb_scsiio *csio, u_int32_t retries,
  975                                    void (*cbfcnp)(struct cam_periph *, 
  976                                                   union ccb *),
  977                                    void *data_ptr, u_int8_t dxfer_len,
  978                                    u_int8_t tag_action, u_int8_t sense_len,
  979                                    u_int32_t timeout);
  980 
  981 void            scsi_inquiry(struct ccb_scsiio *csio, u_int32_t retries,
  982                              void (*cbfcnp)(struct cam_periph *, union ccb *),
  983                              u_int8_t tag_action, u_int8_t *inq_buf, 
  984                              u_int32_t inq_len, int evpd, u_int8_t page_code,
  985                              u_int8_t sense_len, u_int32_t timeout);
  986 
  987 void            scsi_mode_sense(struct ccb_scsiio *csio, u_int32_t retries,
  988                                 void (*cbfcnp)(struct cam_periph *,
  989                                                union ccb *),
  990                                 u_int8_t tag_action, int dbd,
  991                                 u_int8_t page_code, u_int8_t page,
  992                                 u_int8_t *param_buf, u_int32_t param_len,
  993                                 u_int8_t sense_len, u_int32_t timeout);
  994 
  995 void            scsi_mode_sense_len(struct ccb_scsiio *csio, u_int32_t retries,
  996                                     void (*cbfcnp)(struct cam_periph *,
  997                                                    union ccb *),
  998                                     u_int8_t tag_action, int dbd,
  999                                     u_int8_t page_code, u_int8_t page,
 1000                                     u_int8_t *param_buf, u_int32_t param_len,
 1001                                     int minimum_cmd_size, u_int8_t sense_len,
 1002                                     u_int32_t timeout);
 1003 
 1004 void            scsi_mode_select(struct ccb_scsiio *csio, u_int32_t retries,
 1005                                  void (*cbfcnp)(struct cam_periph *,
 1006                                                 union ccb *),
 1007                                  u_int8_t tag_action, int scsi_page_fmt,
 1008                                  int save_pages, u_int8_t *param_buf,
 1009                                  u_int32_t param_len, u_int8_t sense_len,
 1010                                  u_int32_t timeout);
 1011 
 1012 void            scsi_mode_select_len(struct ccb_scsiio *csio, u_int32_t retries,
 1013                                      void (*cbfcnp)(struct cam_periph *,
 1014                                                     union ccb *),
 1015                                      u_int8_t tag_action, int scsi_page_fmt,
 1016                                      int save_pages, u_int8_t *param_buf,
 1017                                      u_int32_t param_len, int minimum_cmd_size,
 1018                                      u_int8_t sense_len, u_int32_t timeout);
 1019 
 1020 void            scsi_log_sense(struct ccb_scsiio *csio, u_int32_t retries,
 1021                                void (*cbfcnp)(struct cam_periph *, union ccb *),
 1022                                u_int8_t tag_action, u_int8_t page_code,
 1023                                u_int8_t page, int save_pages, int ppc,
 1024                                u_int32_t paramptr, u_int8_t *param_buf,
 1025                                u_int32_t param_len, u_int8_t sense_len,
 1026                                u_int32_t timeout);
 1027 
 1028 void            scsi_log_select(struct ccb_scsiio *csio, u_int32_t retries,
 1029                                 void (*cbfcnp)(struct cam_periph *,
 1030                                 union ccb *), u_int8_t tag_action,
 1031                                 u_int8_t page_code, int save_pages,
 1032                                 int pc_reset, u_int8_t *param_buf,
 1033                                 u_int32_t param_len, u_int8_t sense_len,
 1034                                 u_int32_t timeout);
 1035 
 1036 void            scsi_prevent(struct ccb_scsiio *csio, u_int32_t retries,
 1037                              void (*cbfcnp)(struct cam_periph *, union ccb *),
 1038                              u_int8_t tag_action, u_int8_t action,
 1039                              u_int8_t sense_len, u_int32_t timeout);
 1040 
 1041 void            scsi_read_capacity(struct ccb_scsiio *csio, u_int32_t retries,
 1042                                    void (*cbfcnp)(struct cam_periph *, 
 1043                                    union ccb *), u_int8_t tag_action, 
 1044                                    struct scsi_read_capacity_data *,
 1045                                    u_int8_t sense_len, u_int32_t timeout);
 1046 void            scsi_read_capacity_16(struct ccb_scsiio *csio, uint32_t retries,
 1047                                       void (*cbfcnp)(struct cam_periph *,
 1048                                       union ccb *), uint8_t tag_action,
 1049                                       uint64_t lba, int reladr, int pmi,
 1050                                       struct scsi_read_capacity_data_long
 1051                                       *rcap_buf, uint8_t sense_len,
 1052                                       uint32_t timeout);
 1053 
 1054 void            scsi_report_luns(struct ccb_scsiio *csio, u_int32_t retries,
 1055                                  void (*cbfcnp)(struct cam_periph *, 
 1056                                  union ccb *), u_int8_t tag_action, 
 1057                                  u_int8_t select_report,
 1058                                  struct scsi_report_luns_data *rpl_buf,
 1059                                  u_int32_t alloc_len, u_int8_t sense_len,
 1060                                  u_int32_t timeout);
 1061 
 1062 void            scsi_synchronize_cache(struct ccb_scsiio *csio, 
 1063                                        u_int32_t retries,
 1064                                        void (*cbfcnp)(struct cam_periph *, 
 1065                                        union ccb *), u_int8_t tag_action, 
 1066                                        u_int32_t begin_lba, u_int16_t lb_count,
 1067                                        u_int8_t sense_len, u_int32_t timeout);
 1068 
 1069 void scsi_read_write(struct ccb_scsiio *csio, u_int32_t retries,
 1070                      void (*cbfcnp)(struct cam_periph *, union ccb *),
 1071                      u_int8_t tag_action, int readop, u_int8_t byte2, 
 1072                      int minimum_cmd_size, u_int64_t lba,
 1073                      u_int32_t block_count, u_int8_t *data_ptr,
 1074                      u_int32_t dxfer_len, u_int8_t sense_len,
 1075                      u_int32_t timeout);
 1076 
 1077 void scsi_start_stop(struct ccb_scsiio *csio, u_int32_t retries,
 1078                      void (*cbfcnp)(struct cam_periph *, union ccb *),
 1079                      u_int8_t tag_action, int start, int load_eject,
 1080                      int immediate, u_int8_t sense_len, u_int32_t timeout);
 1081 
 1082 int             scsi_inquiry_match(caddr_t inqbuffer, caddr_t table_entry);
 1083 int             scsi_static_inquiry_match(caddr_t inqbuffer,
 1084                                           caddr_t table_entry);
 1085 
 1086 static __inline void scsi_extract_sense(struct scsi_sense_data *sense,
 1087                                         int *error_code, int *sense_key,
 1088                                         int *asc, int *ascq);
 1089 static __inline void scsi_ulto2b(u_int32_t val, u_int8_t *bytes);
 1090 static __inline void scsi_ulto3b(u_int32_t val, u_int8_t *bytes);
 1091 static __inline void scsi_ulto4b(u_int32_t val, u_int8_t *bytes);
 1092 static __inline void scsi_u64to8b(u_int64_t val, u_int8_t *bytes);
 1093 static __inline u_int32_t scsi_2btoul(u_int8_t *bytes);
 1094 static __inline u_int32_t scsi_3btoul(u_int8_t *bytes);
 1095 static __inline int32_t scsi_3btol(u_int8_t *bytes);
 1096 static __inline u_int32_t scsi_4btoul(u_int8_t *bytes);
 1097 static __inline u_int64_t scsi_8btou64(u_int8_t *bytes);
 1098 static __inline void *find_mode_page_6(struct scsi_mode_header_6 *mode_header);
 1099 static __inline void *find_mode_page_10(struct scsi_mode_header_10 *mode_header);
 1100 
 1101 static __inline void scsi_extract_sense(struct scsi_sense_data *sense,
 1102                                         int *error_code, int *sense_key,
 1103                                         int *asc, int *ascq)
 1104 {
 1105         *error_code = sense->error_code & SSD_ERRCODE;
 1106         *sense_key = sense->flags & SSD_KEY;
 1107         *asc = (sense->extra_len >= 5) ? sense->add_sense_code : 0;
 1108         *ascq = (sense->extra_len >= 6) ? sense->add_sense_code_qual : 0;
 1109 }
 1110 
 1111 static __inline void
 1112 scsi_ulto2b(u_int32_t val, u_int8_t *bytes)
 1113 {
 1114 
 1115         bytes[0] = (val >> 8) & 0xff;
 1116         bytes[1] = val & 0xff;
 1117 }
 1118 
 1119 static __inline void
 1120 scsi_ulto3b(u_int32_t val, u_int8_t *bytes)
 1121 {
 1122 
 1123         bytes[0] = (val >> 16) & 0xff;
 1124         bytes[1] = (val >> 8) & 0xff;
 1125         bytes[2] = val & 0xff;
 1126 }
 1127 
 1128 static __inline void
 1129 scsi_ulto4b(u_int32_t val, u_int8_t *bytes)
 1130 {
 1131 
 1132         bytes[0] = (val >> 24) & 0xff;
 1133         bytes[1] = (val >> 16) & 0xff;
 1134         bytes[2] = (val >> 8) & 0xff;
 1135         bytes[3] = val & 0xff;
 1136 }
 1137 
 1138 static __inline void
 1139 scsi_u64to8b(u_int64_t val, u_int8_t *bytes)
 1140 {
 1141 
 1142         bytes[0] = (val >> 56) & 0xff;
 1143         bytes[1] = (val >> 48) & 0xff;
 1144         bytes[2] = (val >> 40) & 0xff;
 1145         bytes[3] = (val >> 32) & 0xff;
 1146         bytes[4] = (val >> 24) & 0xff;
 1147         bytes[5] = (val >> 16) & 0xff;
 1148         bytes[6] = (val >> 8) & 0xff;
 1149         bytes[7] = val & 0xff;
 1150 }
 1151 
 1152 static __inline u_int32_t
 1153 scsi_2btoul(u_int8_t *bytes)
 1154 {
 1155         u_int32_t rv;
 1156 
 1157         rv = (bytes[0] << 8) |
 1158              bytes[1];
 1159         return (rv);
 1160 }
 1161 
 1162 static __inline u_int32_t
 1163 scsi_3btoul(u_int8_t *bytes)
 1164 {
 1165         u_int32_t rv;
 1166 
 1167         rv = (bytes[0] << 16) |
 1168              (bytes[1] << 8) |
 1169              bytes[2];
 1170         return (rv);
 1171 }
 1172 
 1173 static __inline int32_t 
 1174 scsi_3btol(u_int8_t *bytes)
 1175 {
 1176         u_int32_t rc = scsi_3btoul(bytes);
 1177  
 1178         if (rc & 0x00800000)
 1179                 rc |= 0xff000000;
 1180 
 1181         return (int32_t) rc;
 1182 }
 1183 
 1184 static __inline u_int32_t
 1185 scsi_4btoul(u_int8_t *bytes)
 1186 {
 1187         u_int32_t rv;
 1188 
 1189         rv = (bytes[0] << 24) |
 1190              (bytes[1] << 16) |
 1191              (bytes[2] << 8) |
 1192              bytes[3];
 1193         return (rv);
 1194 }
 1195 
 1196 static __inline uint64_t
 1197 scsi_8btou64(uint8_t *bytes)
 1198 {
 1199         uint64_t rv;
 1200  
 1201         rv = (((uint64_t)bytes[0]) << 56) |
 1202              (((uint64_t)bytes[1]) << 48) |
 1203              (((uint64_t)bytes[2]) << 40) |
 1204              (((uint64_t)bytes[3]) << 32) |
 1205              (((uint64_t)bytes[4]) << 24) |
 1206              (((uint64_t)bytes[5]) << 16) |
 1207              (((uint64_t)bytes[6]) << 8) |
 1208              bytes[7];
 1209         return (rv);
 1210 }
 1211 
 1212 /*
 1213  * Given the pointer to a returned mode sense buffer, return a pointer to
 1214  * the start of the first mode page.
 1215  */
 1216 static __inline void *
 1217 find_mode_page_6(struct scsi_mode_header_6 *mode_header)
 1218 {
 1219         void *page_start;
 1220 
 1221         page_start = (void *)((u_int8_t *)&mode_header[1] +
 1222                               mode_header->blk_desc_len);
 1223 
 1224         return(page_start);
 1225 }
 1226 
 1227 static __inline void *
 1228 find_mode_page_10(struct scsi_mode_header_10 *mode_header)
 1229 {
 1230         void *page_start;
 1231 
 1232         page_start = (void *)((u_int8_t *)&mode_header[1] +
 1233                                scsi_2btoul(mode_header->blk_desc_len));
 1234 
 1235         return(page_start);
 1236 }
 1237 
 1238 __END_DECLS
 1239 
 1240 #endif /*_SCSI_SCSI_ALL_H*/

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