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Annotation of Net2/scsi/scsiconf.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Written by Julian Elischer ([email protected])
        !             3:  * for TRW Financial Systems for use under the MACH(2.5) operating system.
        !             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:  * PATCHES MAGIC                LEVEL   PATCH THAT GOT US HERE
        !            16:  * --------------------         -----   ----------------------
        !            17:  * CURRENT PATCH LEVEL:         1       00098
        !            18:  * --------------------         -----   ----------------------
        !            19:  *
        !            20:  * 16 Feb 93   Julian Elischer         ADDED for SCSI system
        !            21:  *
        !            22:  */
        !            23: 
        !            24: /*
        !            25:  * Ported to run under 386BSD by Julian Elischer ([email protected]) Sept 1992
        !            26:  */
        !            27: 
        !            28: /***********************************************\
        !            29: * these calls are called by the high-end       *
        !            30: * drivers to get services from whatever low-end        *
        !            31: * drivers they are attached to                 *
        !            32: \***********************************************/
        !            33: struct scsi_switch
        !            34: {
        !            35:        int             (*scsi_cmd)();
        !            36:        void            (*scsi_minphys)();
        !            37:        int             (*open_target_lu)();
        !            38:        int             (*close_target_lu)();
        !            39:        long    int     (*adapter_info)(); /* see definitions below */
        !            40:        u_long  spare[3];
        !            41: };
        !            42: #define        AD_INF_MAX_CMDS         0x000000FF /* maximum number of entries
        !            43:                                                queuable to a device by 
        !            44:                                                the adapter */
        !            45: /* 24 bits of other adapter charcteristics go here */
        !            46: 
        !            47: /***********************************************\
        !            48: * The scsi debug control bits                  *
        !            49: \***********************************************/
        !            50: extern int     scsi_debug;
        !            51: #define PRINTROUTINES  0x01
        !            52: #define        TRACEOPENS      0x02
        !            53: #define        TRACEINTERRUPTS 0x04
        !            54: #define        SHOWREQUESTS    0x08
        !            55: #define        SHOWSCATGATH    0x10
        !            56: #define        SHOWINQUIRY     0x20
        !            57: #define        SHOWCOMMANDS    0x40
        !            58: 
        !            59: 
        !            60: /********************************/
        !            61: /* return values for scsi_cmd() */
        !            62: /********************************/
        !            63: #define SUCCESSFULLY_QUEUED    0
        !            64: #define TRY_AGAIN_LATER                1
        !            65: #define        COMPLETE                2
        !            66: #define        HAD_ERROR               3
        !            67: 
        !            68: struct scsi_xfer
        !            69: {
        !            70:        struct  scsi_xfer *next;        /* when free */
        !            71:        int     flags;
        !            72:        u_char  adapter;
        !            73:        u_char  targ;
        !            74:        u_char  lu;
        !            75:        u_char  retries;        /* the number of times to retry */
        !            76:        long    int     timeout;        /* in miliseconds */
        !            77:        struct  scsi_generic *cmd;
        !            78:        int     cmdlen;
        !            79:        u_char  *data;          /* either the dma address OR a uio address */
        !            80:        int     datalen;        /* data len (blank if uio)    */
        !            81:        int     resid;
        !            82:        int     (*when_done)();
        !            83:        int     done_arg;
        !            84:        int     done_arg2;
        !            85:        int     error;
        !            86:        struct  buf *bp;
        !            87:        struct  scsi_sense_data sense;
        !            88: };
        !            89: /********************************/
        !            90: /* Flag values                 */
        !            91: /********************************/
        !            92: #define        SCSI_NOSLEEP    0x01    /* Not a user... don't sleep            */
        !            93: #define        SCSI_NOMASK     0x02    /* dont allow interrupts.. booting      */
        !            94: #define        SCSI_NOSTART    0x04    /* left over from ancient history       */
        !            95: #define        ITSDONE         0x10    /* the transfer is as done as it gets   */
        !            96: #define        INUSE           0x20    /* The scsi_xfer block is in use        */
        !            97: #define        SCSI_SILENT     0x40    /* Don't report errors to console       */
        !            98: #define SCSI_ERR_OK    0x80    /* An error on this operation is OK.    */
        !            99: #define        SCSI_RESET      0x100   /* Reset the device in question         */
        !           100: #define        SCSI_DATA_UIO   0x200   /* The data address refers to a UIO     */
        !           101: #define        SCSI_DATA_IN    0x400   /* expect data to come INTO memory      */
        !           102: #define        SCSI_DATA_OUT   0x800   /* expect data to flow OUT of memory    */
        !           103: #define        SCSI_TARGET     0x1000  /* This defines a TARGET mode op.       */
        !           104: /********************************/
        !           105: /* Error values                        */
        !           106: /********************************/
        !           107: #define XS_NOERROR     0x0     /* there is no error, (sense is invalid)  */
        !           108: #define XS_SENSE       0x1     /* Check the returned sense for the error */
        !           109: #define        XS_DRIVER_STUFFUP 0x2   /* Driver failed to perform operation     */
        !           110: #define XS_TIMEOUT     0x03    /* The device timed out.. turned off?     */
        !           111: #define XS_SWTIMEOUT   0x04    /* The Timeout reported was caught by SW  */
        !           112: #define XS_BUSY                0x08    /* The device busy, try again later?      */
        !           113: 

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