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Annotation of 42BSD/sys/vaxif/if_vv.h, revision 1.1.1.1

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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