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Annotation of Net2/arch/vax/if/if_vv.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution and use in source and binary forms, with or without
        !             6:  * modification, are permitted provided that the following conditions
        !             7:  * are met:
        !             8:  * 1. Redistributions of source code must retain the above copyright
        !             9:  *    notice, this list of conditions and the following disclaimer.
        !            10:  * 2. Redistributions in binary form must reproduce the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer in the
        !            12:  *    documentation and/or other materials provided with the distribution.
        !            13:  * 3. All advertising materials mentioning features or use of this software
        !            14:  *    must display the following acknowledgement:
        !            15:  *     This product includes software developed by the University of
        !            16:  *     California, Berkeley and its contributors.
        !            17:  * 4. Neither the name of the University nor the names of its contributors
        !            18:  *    may be used to endorse or promote products derived from this software
        !            19:  *    without specific prior written permission.
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            31:  * SUCH DAMAGE.
        !            32:  *
        !            33:  *     @(#)if_vv.h     7.4 (Berkeley) 6/28/90
        !            34:  */
        !            35: 
        !            36: /*
        !            37:  * ECO 176-748 changed the braodcast address from 0 to 0xff, at
        !            38:  * CTL (p1002) serial number around 150.
        !            39:  * It was implemented in August, 1982. This is a field-installable ECO,
        !            40:  * which improves net reliability. If the broadcast address has not been
        !            41:  * changed, comment out the following line.
        !            42:  */
        !            43: #define        NEW_BROADCAST           /* new chip for broadcast problem */
        !            44: 
        !            45: /*
        !            46:  * Local network header for proNET Ring
        !            47:  * This is arbitrated by "jas@proteon"
        !            48:  * (aka John Shriver, 617-655-3340)
        !            49:  */
        !            50: 
        !            51: struct vv_header {
        !            52:         /* the first two fields are required by the hardware */
        !            53:        u_char  vh_dhost;       /* destination address */
        !            54:        u_char  vh_shost;       /* source address */
        !            55:        /* the next three fields are the local network header */
        !            56:        u_char  vh_version;     /* header version */
        !            57:        u_char  vh_type;        /* packet type => protocol number */
        !            58:        short   vh_info;        /* protocol-specific information */
        !            59: };
        !            60: 
        !            61: #define        RING_VERSION    2       /* current version of v2lni header */
        !            62: 
        !            63: /*
        !            64:  * Packet types (protocol numbers) in proNET protocol header
        !            65:  * Other types are defined, but are proprietary.
        !            66:  */
        !            67: #define        RING_IP         1
        !            68: #define        RING_TRAILER    2       /* offset now in vh_info only */
        !            69: #define RING_ARP       3
        !            70: #define RING_HDLC      4
        !            71: #define RING_VAXDB     5
        !            72: #define RING_RINGWAY   6
        !            73: #define RING_RINGWAYM  8
        !            74: #define        RING_NOVELL     10
        !            75: #define RING_PUP       12
        !            76: #define RING_XNS       14
        !            77: #define        RING_DIAGNOSTICS 15     /* protocol type for testing */
        !            78: #define        RING_ECHO       16
        !            79: #define RING_8022      23
        !            80: 
        !            81: #ifdef NEW_BROADCAST
        !            82: #define        VV_BROADCAST    0xff    /* hardware-defined broadcast address */
        !            83: #else
        !            84: #define        VV_BROADCAST    0x00    /* hardware-defined broadcast address */
        !            85: #endif
        !            86: 
        !            87: /*
        !            88:  * Proteon proNET Hardware definitions
        !            89:  * register bit definitions
        !            90:  */
        !            91: #define        VV_ENB  01              /* Enable Operation */
        !            92: #define        VV_DEN  02              /* Enable DMA */
        !            93: #define        VV_HEN  04              /* Host Relay Enable (Rcv) */
        !            94: #define        VV_CPB  04              /* Clear Packet Buffer (Xmit) */
        !            95: #define        VV_STE  010             /* Self Test Enable (Rcv) */
        !            96: #define        VV_UT1  010             /* Unused (Xmit) */
        !            97: #define        VV_LPB  020             /* Modem Disable (Rcv) */
        !            98: #define        VV_INR  020             /* Initialize Ring (Xmit) */
        !            99: #define        VV_RST  040             /* Reset */
        !           100: #define        VV_IEN  0100            /* Interrupt Enable */
        !           101: #define        VV_RDY  0200            /* Done */
        !           102: #define        VV_DPR  0400            /* Data Present (Rcv) */
        !           103: #define        VV_RFS  0400            /* Refused (Xmit) */
        !           104: #define        VV_NXM  01000           /* Non Existent Memory */
        !           105: #define        VV_OVR  02000           /* Overrun */
        !           106: #define        VV_ODB  04000           /* Odd Byte (Rcv) */
        !           107: #define        VV_UT2  04000           /* Unused (Xmit) */
        !           108: #define        VV_LDE  010000          /* Parity on 10 megabit (Rcv), */
        !           109:                                /* Link Data Error on 80 megabit (Rcv) */
        !           110: #define        VV_OPT  010000          /* Output Timeout (Xmit) */
        !           111: #define        VV_NOK  020000          /* Ring Not OK */
        !           112: #define        VV_BDF  040000          /* Bad Format in Operation */
        !           113: #define        VV_NIR  0100000         /* Not in Ring */
        !           114: 
        !           115: #define        VVXERR  (VV_NXM|VV_OVR|VV_OPT|VV_BDF)   /* Xmit errs */
        !           116: #define        VVRERR  (VV_NXM|VV_OVR|VV_ODB|VV_BDF|VV_DPR)    /* Rcv errs */
        !           117: #define        VVFE    (VV_NXM|VV_OVR)                 /* Fatal errors */
        !           118: 
        !           119: #define VV_IBITS \
        !           120: "\10\20NIR\17BDF\16NOK\15LDE\14ODB\13OVR\12NXM\11DPR\10RDY\7IEN\6RST\5LPB\4STE\3HEN\2DEN\1ENB"
        !           121: 
        !           122: #define VV_OBITS \
        !           123: "\10\20NIR\17BDF\16NOK\15OPT\13OVR\12NXM\11RFS\10RDY\7IEN\6RST\5INR\3HEN\2DEN\1ENB"
        !           124: 
        !           125: /* device registers */
        !           126: struct vvreg {
        !           127:        short   vvicsr;         /* input csr */
        !           128:        u_short vviwc;          /* input word count */
        !           129:        u_short vviba;          /* input addr lo */
        !           130:        u_short vviea;          /* input addr hi */
        !           131:        short   vvocsr;         /* output csr */
        !           132:        u_short vvowc;          /* output word count */
        !           133:        u_short vvoba;          /* output addr lo */
        !           134:        u_short vvoea;          /* output addr hi */
        !           135: };
        !           136: 
        !           137: #define        VVRETRY 7               /* output retry limit */
        !           138: #define VVIDENTSUCC 5          /* number of successes required in self-test */
        !           139: #define VVIDENTRETRY 10                /* identify loop attempt limit */
        !           140: #define VVTIMEOUT 60           /* seconds before a transmit timeout */

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