1 /* if_vv.h 4.3 83/02/20 */ 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 86