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Annotation of 42BSD/sys/vaxif/if_vv.h, revision 1.1

1.1     ! root        1: /*     if_vv.h 4.5     83/07/29        */
        !             2: /*
        !             3:  * Local network header for V2LNI Ring
        !             4:  * This is arbitrated by "V2LNI-PEOPLE@MIT-MC"
        !             5:  * (aka Joel N. Chiappa)
        !             6:  */
        !             7: 
        !             8: #define        NEW_BROADCAST           /* new plas for broadcast problem */
        !             9: 
        !            10: struct vv_header {
        !            11:         /* the first two fields are required by the hardware */
        !            12:        u_char  vh_dhost;       /* destination address */
        !            13:        u_char  vh_shost;       /* source address */
        !            14:        /* the next three fields are the local network header */
        !            15:        u_char  vh_version;     /* header version */
        !            16:        u_char  vh_type;        /* packet type => protocol number */
        !            17:        short   vh_info;        /* protocol-specific information */
        !            18: };
        !            19: 
        !            20: #define        RING_VERSION    2       /* current version of v2lni header */
        !            21: 
        !            22: /*
        !            23:  * Packet types (protocol numbers) in v2lni header
        !            24:  */
        !            25: #define        RING_IP         1
        !            26: #define        RING_IPTrailer  2
        !            27: #define        RING_IPNTrailer 16
        !            28: #define        RING_WHOAMI     0xa5    /* insure some bit transitions */
        !            29: 
        !            30: #ifdef NEW_BROADCAST
        !            31: #define        VV_BROADCAST    0xff    /* hardware-defined broadcast address */
        !            32: #else
        !            33: #define        VV_BROADCAST    0x00    /* hardware-defined broadcast address */
        !            34: #endif
        !            35: 
        !            36: /*
        !            37:  * Proteon V2LNI Hardware definitions
        !            38:  * register bit definitions - new style
        !            39:  */
        !            40: #define        VV_ENB  01              /* Enable Operation */
        !            41: #define        VV_DEN  02              /* Enable DMA */
        !            42: #define        VV_HEN  04              /* Host Relay Enable (Rcv) */
        !            43: #define        VV_CPB  04              /* Clear Packet Buffer (Xmit) */
        !            44: #define        VV_STE  010             /* Self Test Enable (Rcv) */
        !            45: #define        VV_UT1  010             /* Unused (Xmit) */
        !            46: #define        VV_LPB  020             /* Modem Disable (Rcv) */
        !            47: #define        VV_INR  020             /* Initialize Ring (Xmit) */
        !            48: #define        VV_RST  040             /* Reset */
        !            49: #define        VV_IEN  0100            /* Interrupt Enable */
        !            50: #define        VV_RDY  0200            /* Done */
        !            51: #define        VV_DPR  0400            /* Data Present (Rcv) */
        !            52: #define        VV_RFS  0400            /* Refused (Xmit) */
        !            53: #define        VV_NXM  01000           /* Non Existent Memory */
        !            54: #define        VV_OVR  02000           /* Overrun */
        !            55: #define        VV_ODB  04000           /* Odd Byte (Achtung, mein Fuehrer) (Rcv) */
        !            56: #define        VV_UT2  04000           /* Unused (Xmit) */
        !            57: #define        VV_LDE  010000          /* Link Data Error (Rcv) */
        !            58: #define        VV_OPT  010000          /* Output Timeout (Xmit) */
        !            59: #define        VV_NOK  020000          /* Ring Not OK */
        !            60: #define        VV_BDF  040000          /* Bad Format in Operation */
        !            61: #define        VV_NIR  0100000         /* Not in Ring */
        !            62: 
        !            63: #define        VVXERR  (VV_NXM|VV_OVR|VV_OPT|VV_BDF)   /* Xmit errs */
        !            64: #define        VVRERR  (VV_NXM|VV_OVR|VV_ODB|VV_BDF)   /* Rcv errs */
        !            65: #define        VVFE    (VV_NXM|VV_OVR)                 /* Fatal errors */
        !            66: 
        !            67: #define VV_IBITS \
        !            68: "\10\20NIR\17BDF\16NOK\15LDE\14ODB\13OVR\12NXM\11DPR\10RDY\7IEN\6RST\5LPB\4STE\3HEN\2DEN\1ENB"
        !            69: 
        !            70: #define VV_OBITS \
        !            71: "\10\20NIR\17BDF\16NOK\15OPT\13OVR\12NXM\11RFS\10RDY\7IEN\6RST\5INR\3HEN\2DEN\1ENB"
        !            72: 
        !            73: /* device registers */
        !            74: struct vvreg {
        !            75:        short   vvicsr;         /* input csr */
        !            76:        u_short vviwc;          /* input word count */
        !            77:        u_short vviba;          /* input addr lo */
        !            78:        u_short vviea;          /* input addr hi */
        !            79:        short   vvocsr;         /* output csr */
        !            80:        u_short vvowc;          /* output word count */
        !            81:        u_short vvoba;          /* output addr lo */
        !            82:        u_short vvoea;          /* output addr hi */
        !            83: };
        !            84: 
        !            85: #define        VVRETRY 7

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