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Annotation of 43BSD/sys/vaxif/if_exreg.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.  The Berkeley software License Agreement
        !             4:  * specifies the terms and conditions for redistribution.
        !             5:  *
        !             6:  *     @(#)if_exreg.h  7.1 (Berkeley) 6/5/86
        !             7:  */
        !             8: 
        !             9: 
        !            10: struct exdevice {
        !            11:        char    xd_porta;       /* write on porta resets EXOS */
        !            12:        char    xd_pad_a;
        !            13:        char    xd_portb;       /* write on portb interrupts EXOS */
        !            14:                                /* read on portb returns status bits */
        !            15:        char    xd_pad_b;
        !            16: };
        !            17: 
        !            18: /* EXOS I/O PORT A write definitions */
        !            19: #define        EX_RESET        0       /* value doesn't really matter... */
        !            20: 
        !            21: /* EXOS I/O PORT B write definitions */
        !            22: #define        EX_NTRUPT       0
        !            23: 
        !            24: /* EXOS I/O PORT B read definitions */
        !            25: #define        EX_TESTOK       1       /* set when self-diagnostics passed */
        !            26: #define        EX_UNREADY      (1<<3)  /* set until EXOS ready to read from B */
        !            27: 
        !            28: /* message buffer status field definitions */
        !            29: #define        MH_OWNER        1       /* mask for status bit for owner */
        !            30: #define        MH_HOST         0       /* if 0, the host owns the buffer */
        !            31: #define        MH_EXOS         1       /* if 1, the EXOS owns the buffer */
        !            32: 
        !            33: /* EXOS Link Level request codes */
        !            34: #define        LLTRANSMIT      0xC     /* send a packet */
        !            35: #define        LLRTRANSMIT     0xE     /* send a packet, and self-receive */
        !            36: #define        LLRECEIVE       0xD     /* receive a packet */
        !            37: #define        LLNET_MODE      0x8     /* read/write mode control objects */
        !            38: #define        LLNET_ADDRS     0x9     /* read/write receive address slots */
        !            39: #define        LLNET_RECV      0xA     /* read/alter receive slot enable bit */
        !            40: #define        LLNET_STSTCS    0xB     /* read/reset network statistics objects */
        !            41: 
        !            42: /* Link Level return codes common to all requests */
        !            43: #define        LL_OK           0       /* successful completion */
        !            44: #define        LLX_MODE        0xA1    /* EXOS not in link level mode (impossible) */
        !            45: 
        !            46: /* LLTRANSMIT unique return codes */
        !            47: #define        LLXM_1RTRY      0x1     /* successful xmission, 1 retry */
        !            48: #define        LLXM_RTRYS      0x2     /* successful xmission, more than 1 retry */
        !            49: #define        LLXM_NSQE       0x8     /* successful xmission, no SQE TEST signal */
        !            50: #define        LLXM_CLSN       0x10    /* xmission failed, excess retries */
        !            51: #define        LLXM_NCS        0x20    /* xmission failed, no carrier sense */
        !            52: #define        LLXM_LNGTH      0x40    /* xmission failed, bad packet length */
        !            53: #define        XMIT_BITS       "\7\7LENGTH\6CARRIER\5XCLSNS\4SQETST"
        !            54: #define        LLXM_ERROR      (LLXM_NSQE|LLXM_CLSN|LLXM_NCS|LLXM_LNGTH)
        !            55: 
        !            56: /* LLRECEIVE unique return codes */
        !            57: #define        LLRC_TRUNC      0x4     /* pkt received, but truncated to fit buffer */
        !            58: #define        LLRC_ALIGN      0x10    /* pkt received, but with alignment error */
        !            59: #define        LLRC_CRC        0x20    /* pkt received, but with CRC error */
        !            60: #define        LLRC_BUFLEN     0x40    /* no pkt received, buffer less than 64 bytes */
        !            61:                                /* this should never happen here */
        !            62: #define        RECV_BITS       "\7\7BUFLEN\6CRC\5ALIGN\3TRUNC"
        !            63: 
        !            64: /* LLNET_ADDRS unique return codes */
        !            65: #define        LLNA_BADSLOT    0xD1    /* slot doesn't exist or can't be accessed */
        !            66: #define        LLNA_BADADDR    0xD3    /* invalid address for designated slot */
        !            67: 
        !            68: /* LLNET_RECV unique return codes */
        !            69: #define        LLNR_BADSLOT    0xD1    /* slot doesn't exist or can't be accessed */
        !            70: #define        LLNR_BADADDR    0xD2    /* designated slot was empty */
        !            71: 
        !            72: /* address slot object indices */
        !            73: #define        NULLSLOT        0       /* the null slot */
        !            74: #define        MINMCSLOT       1       /* minimum multicast slot index */
        !            75: #define        MAXMCSLOT       8       /* default maximum multicast slot index */
        !            76: #define        PHYSSLOT        253     /* physical slot index */
        !            77: #define        UNVRSSLOT       254     /* universal slot index */
        !            78: #define        BROADSLOT       255     /* broadcast slot index */
        !            79: 
        !            80: /* request mask bit definitions */
        !            81: #define        WRITE_OBJ       1       /* write the object */
        !            82: #define        READ_OBJ        2       /* read the object */
        !            83: #define        ENABLE_RCV      4       /* enable reception on designated slot */
        !            84: 
        !            85: /* NET_MODE options mask bit definitions */
        !            86: #define        OPT_ALIGN       0x10    /* receive packets with alignment errors */
        !            87: #define        OPT_CRC         0x20    /* receive packets with CRC errors */
        !            88: #define        OPT_DSABLE      0x80    /* disconnect controller hardware */
        !            89: 
        !            90: /* NET_MODE mode field value definitions */
        !            91: #define        MODE_OFF        0       /* stop transmission and reception */
        !            92: #define        MODE_PERF       1       /* perfect multicast address filtering */
        !            93: #define        MODE_HW         2       /* hardware-only multicast address filtering */
        !            94: #define        MODE_PROM       3       /* promiscuous reception */
        !            95: 
        !            96: #define        NFRAGMENTS 1    /* number fragments that the EXOS will scatter/gather */
        !            97: #define        EXMAXRBUF 1520  /* per EXOS 101 manual 5.3.7 (maybe 1518 would do) */
        !            98: 
        !            99: /*
        !           100:  * N.B.  Structures below are carefully constructed so that
        !           101:  * they correspond to the message formats that NX firmware
        !           102:  * defines.  None of them should contain any compiler-instigated
        !           103:  * padding.  Be especially careful about VAX C longword alignment!
        !           104:  */
        !           105: 
        !           106: struct stat_array {
        !           107:        u_long  sa_fsent;       /* frames sent without errors */
        !           108:        u_long  sa_xsclsn;      /* frames aborted excess collisions */
        !           109:        u_long  sa_nsqe;        /* frames subject to heartbeat failure */
        !           110:        u_long  sa_undef;       /* undefined (TDR on EXOS 101) */
        !           111:        u_long  sa_frcvd;       /* frames received no errors */
        !           112:        u_long  sa_align;       /* frames received alignment error */
        !           113:        u_long  sa_crc;         /* frames received crc error */
        !           114:        u_long  sa_flost;       /* frames lost */
        !           115: };
        !           116: 
        !           117: struct buf_blk {               /* packet/buffer block descriptor */
        !           118:        u_short bb_len;                 /* length of block, in bytes */
        !           119:        u_short bb_addr[2];             /* address of block */
        !           120:        /*
        !           121:         * Array above is really a single u_long field.
        !           122:         * We kludge its definition to defeat word-alignment.
        !           123:         * Access would look like:
        !           124:         *     longaddr = *(u_long *)bp->.mb_er.er_blks[0].bb_addr;
        !           125:         */
        !           126: };
        !           127: 
        !           128: struct net_mode {              /* read/write mode control objects */
        !           129: /*12*/ u_char  nm_rqst;        /* request code */
        !           130: /*13*/ u_char  nm_rply;        /* reply code */
        !           131: /*14*/ u_char  nm_mask;                /* bit-wise switches for read, write */
        !           132: /*15*/ u_char  nm_optn;                /* acceptable packet reception errors */
        !           133: /*16*/ u_char  nm_mode;                /* EXOS filtering mode */
        !           134: /*17*/
        !           135: };
        !           136: 
        !           137: struct net_addrs {             /* read/write receive address slots */
        !           138: /*12*/ u_char  na_rqst;        /* request code */
        !           139: /*13*/ u_char  na_rply;        /* reply code */
        !           140: /*14*/ u_char  na_mask;                /* bit-wise switches for read, write */
        !           141: /*15*/ u_char  na_slot;                /* index of address slot */
        !           142: /*16*/ u_char  na_addrs[6];            /* address read and/or written */
        !           143: /*22*/
        !           144: };
        !           145: 
        !           146: struct net_recv {              /* read/alter receive slot enable bit */
        !           147: /*12*/ u_char  nr_rqst;        /* request code */
        !           148: /*13*/ u_char  nr_rply;        /* reply code */
        !           149: /*14*/ u_char  nr_mask;                /* bit-wise switches for read, write */
        !           150: /*15*/ u_char  nr_slot;                /* index of address slot */
        !           151: /*16*/
        !           152: };
        !           153: 
        !           154: struct net_ststcs {            /* read/reset network statistics objects */
        !           155: /*12*/ u_char  ns_rqst;        /* request code */
        !           156: /*13*/ u_char  ns_rply;        /* reply code */
        !           157: /*14*/ u_char  ns_mask;                /* bit-wise switches for read, write */
        !           158: /*15*/ u_char  ns_rsrv;                /* reserved for EXOS */
        !           159: /*16*/ u_short ns_nobj;                /* number of objects to work on */
        !           160: /*18*/ u_short ns_xobj;                /* index of first object to work on */
        !           161: /*20*/ u_long  ns_bufp;                /* pointer to statistics buffer */
        !           162: /*24*/
        !           163: };
        !           164: 
        !           165: struct enet_xmit {             /* send a packet on the Ethernet */
        !           166: /*12*/ u_char  et_rqst;        /* request code */
        !           167: /*13*/ u_char  et_rply;        /* reply code */
        !           168: /*14*/ u_char  et_slot;                /* address slot matching dest address */
        !           169: /*15*/ u_char  et_nblock;              /* number of blocks composing packet */
        !           170: /*16*/ struct  buf_blk et_blks[NFRAGMENTS];    /* array of block descriptors */
        !           171: /*22-64*/
        !           172: };
        !           173: 
        !           174: struct enet_recv {             /* receive a packet on the Ethernet */
        !           175: /*12*/ u_char  er_rqst;        /* request code */
        !           176: /*13*/ u_char  er_rply;        /* reply code */
        !           177: /*14*/ u_char  er_slot;                /* address slot matching dest address */
        !           178: /*15*/ u_char  er_nblock;              /* number of blocks composing buffer */
        !           179: /*16*/ struct  buf_blk er_blks[NFRAGMENTS];    /* array of block descriptors */
        !           180: /*22-64*/
        !           181: };
        !           182: 
        !           183: /* we send requests and receive replys with the EXOS using this structure */
        !           184: struct ex_msg {
        !           185: /*00*/ u_short mb_link;        /* address of next message buffer */
        !           186: /*02*/ u_char  mb_rsrv;        /* reserved for use by EXOS */
        !           187: /*03*/ u_char  mb_status;      /* used bit-wise for message protocol */
        !           188: /*04*/ u_short mb_length;      /* length, in bytes, of the rest */
        !           189: /*06*/ short   mb_1rsrv;       /* reserved for used by EXOS */
        !           190: /*08*/ long    mb_mid;         /* available to user */
        !           191: /*12*/ union   mb_all {
        !           192:                struct  net_mode        mb_net_mode;
        !           193:                struct  net_addrs       mb_net_addrs;
        !           194:                struct  net_recv        mb_net_recv;
        !           195:                struct  net_ststcs      mb_net_ststcs;
        !           196:                struct  enet_xmit       mb_enet_xmit;
        !           197:                struct  enet_recv       mb_enet_recv;
        !           198:        } mb_all;
        !           199: /* following field is used only by host, not read by board */
        !           200:        struct  ex_msg *mb_next;        /* host's pointer to next message */
        !           201: };
        !           202: #define        mb_nm   mb_all.mb_net_mode
        !           203: #define        mb_na   mb_all.mb_net_addrs
        !           204: #define        mb_nr   mb_all.mb_net_recv
        !           205: #define        mb_ns   mb_all.mb_net_ststcs
        !           206: #define        mb_et   mb_all.mb_enet_xmit
        !           207: #define        mb_er   mb_all.mb_enet_recv
        !           208: #define        mb_rqst mb_nm.nm_rqst
        !           209: #define        mb_rply mb_nm.nm_rply
        !           210: #define        MBDATALEN (sizeof(union mb_all)+6)
        !           211: 
        !           212: struct confmsg {
        !           213: /*00*/ u_short cm_1rsrv;       /* reserved, must be 1 */
        !           214: /*02*/ char    cm_vc[4];       /* returns ASCII version code */
        !           215: /*06*/ u_char  cm_cc;          /* returns config completion code */
        !           216: /*07*/ u_char  cm_opmode;      /* specifies operation mode */
        !           217: /*08*/ u_short cm_dfo;         /* specifies host data format option */
        !           218: /*10*/ u_char  cm_dcn1;        /* reserved, must be 1 */
        !           219: /*11*/ u_char  cm_2rsrv[2];    /* reserved, must be 0 */
        !           220: /*13*/ u_char  cm_ham;         /* specifies host address mode */
        !           221: /*14*/ u_char  cm_3rsrv;       /* reserved, must be 0 */
        !           222: /*15*/ u_char  cm_mapsiz;      /* reserved, must be 0 */
        !           223: /*16*/ u_char  cm_byteptrn[4]; /* host data format option test pattern */
        !           224: /*20*/ u_short cm_wordptrn[2];
        !           225: /*24*/ u_long  cm_lwordptrn;
        !           226: /*28*/ u_char  cm_rsrvd[20];
        !           227: /*48*/ u_long  cm_mba;         /* use 0xFFFFFFFF in link level mode */
        !           228: /*52*/ u_char  cm_nproc;       /* use 0xFF in link level mode */
        !           229: /*53*/ u_char  cm_nmbox;       /* use 0xFF in link level mode */
        !           230: /*54*/ u_char  cm_nmcast;      /* use 0xFF in link level mode */
        !           231: /*55*/ u_char  cm_nhost;       /* use 1 in link level mode */
        !           232: 
        !           233:        /* the next five parameters define the request message queue */
        !           234: /*56*/ u_long  cm_h2xba;       /* base address of message queue */
        !           235: /*60*/ u_short cm_h2xhdr;      /* address offset of msg Q header */
        !           236: /*62*/ u_char  cm_h2xtyp;      /* interrupt type */
        !           237: /*63*/ u_char  cm_h2xval;      /* interrupt value (not used) */
        !           238: /*64*/ u_short cm_h2xaddr;     /* interrupt vector */
        !           239: /*66*/ u_short cm_h2xpad;      /* pad out unused portion of vector */
        !           240: 
        !           241:        /* the next five parameters define the reply message queue */
        !           242: /*68*/ u_long  cm_x2hba;       /* base address of message queue */
        !           243: /*72*/ u_short cm_x2hhdr;      /* address offset of msg Q header */
        !           244: /*74*/ u_char  cm_x2htyp;      /* interrupt type */
        !           245: /*75*/ u_char  cm_x2hval;      /* interrupt value (not used) */
        !           246: /*76*/ u_short cm_x2haddr;     /* interrupt vector */
        !           247: /*78*/ u_short cm_x2hpad;      /* pad out unused portion of vector */
        !           248: /*80*/
        !           249: };
        !           250: 

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