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1.1 ! root 1: /* ! 2: * Copyright (c) 1988 Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * This code is derived from software contributed to Berkeley by ! 6: * Tektronix Inc. ! 7: * ! 8: * Redistribution and use in source and binary forms, with or without ! 9: * modification, are permitted provided that the following conditions ! 10: * are met: ! 11: * 1. Redistributions of source code must retain the above copyright ! 12: * notice, this list of conditions and the following disclaimer. ! 13: * 2. Redistributions in binary form must reproduce the above copyright ! 14: * notice, this list of conditions and the following disclaimer in the ! 15: * documentation and/or other materials provided with the distribution. ! 16: * 3. All advertising materials mentioning features or use of this software ! 17: * must display the following acknowledgement: ! 18: * This product includes software developed by the University of ! 19: * California, Berkeley and its contributors. ! 20: * 4. Neither the name of the University nor the names of its contributors ! 21: * may be used to endorse or promote products derived from this software ! 22: * without specific prior written permission. ! 23: * ! 24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ! 25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE ! 26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ! 27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE ! 28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL ! 29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS ! 30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ! 31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ! 32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY ! 33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF ! 34: * SUCH DAMAGE. ! 35: * ! 36: * @(#)if_hyreg.h 7.3 (Berkeley) 6/28/90 ! 37: */ ! 38: ! 39: /* ! 40: * Modifications from Berkeley 4.2 BSD ! 41: * Copyright (c) 1983, Tektronix Inc. ! 42: * All Rights Reserved ! 43: */ ! 44: ! 45: /* ! 46: * Network Systems Corporation Hyperchannel interface ! 47: * ! 48: * supports A410 adapter interfaced via a DEC DR-11B, NSC PI-13 or PI-14 ! 49: * (PI-14 is a PI-13 with different line drivers, software is ! 50: * identical to a PI-13) ! 51: * ! 52: * Written by Steve Glaser, Tektronix Inc., July 1982 ! 53: * ! 54: * NOTE: ! 55: * ! 56: * DR11B code has not been fully checked out with 4.1a. ! 57: * The first adapters at Tek came with DR11Bs, and the code once worked, ! 58: * but those have been upgraded to PI-13s. ! 59: */ ! 60: ! 61: /* ! 62: * The HYPERchannel driver sends and receives messages formatted: ! 63: * ! 64: * +---------------------------------------+ --- ! 65: * | | /|\ ! 66: * | HYPERchannel adapter header (hy_hdr) | | ! 67: * | | | ! 68: * +---------------------------------------+ | ! 69: * | | | ! 70: * | Internet Protocol header (ip) | message proper ! 71: * | | (64 bytes max) ! 72: * +---------------------------------------+ | ! 73: * | | | ! 74: * | TCP header + user data | | ! 75: * | (if it all fits here) | | ! 76: * | | \|/ ! 77: * +---------------------------------------+ --- ! 78: * ! 79: * +---------------------------------------+ --- ! 80: * | | /|\ ! 81: * | | | ! 82: * | TCP header + user data | associated data ! 83: * | | | ! 84: * | | \|/ ! 85: * +---------------------------------------+ --- ! 86: * ! 87: * If all of the datagram will fit in the message proper (including ! 88: * the TCP header and user data) the entire datagram is passed in ! 89: * the message proper and the associated data feature of the HYPERchannel ! 90: * is not used. ! 91: * ! 92: * The mapping from internet addresses to HYPERchannel addresses is: ! 93: * ! 94: * 0 7 8 15 16 31 ! 95: * +---------+---------+-----------------------+ ! 96: * | network | special | HYPERchannel address | ! 97: * +---------+---------+-----------------------+ ! 98: * ! 99: * |<------------ internet address ----------->| ! 100: * ! 101: * The hyperchannel address is decoded as follows: ! 102: * ! 103: * 0 7 8 13 14 15 ! 104: * +-------------------+----------------+------+ ! 105: * | adapter number | zero | port | ! 106: * +-------------------+----------------+------+ ! 107: * ! 108: * The low 2 bits are port number (interpreted by hyperchannel hardware). ! 109: * ! 110: * The encoding of special bits is: ! 111: * ! 112: * 00 normal packet ! 113: * ! 114: * 01 loop this packet back to the sender at the ! 115: * specified adapter (ip header source/destination addresses ! 116: * swapped before sending, command bits added to tell the ! 117: * remote HYPERchannel adapter debug & performance studies] ! 118: * this code acts like 02 (below) if the ip destination (before ! 119: * any swapping) and the destination address don't match (e.g. ! 120: * this packet is being routed through a gateway) ! 121: * ! 122: * 02 loop this packet back to the sender at the ! 123: * specified adapter, but go through the specified adapter's ! 124: * IP. This is for testing IP's store and forward mechanism. ! 125: * ! 126: * other undefined, currently treated as normal packet ! 127: * ! 128: */ ! 129: #define MPSIZE 64 /* "Message Proper" size */ ! 130: #define MAXRETRY 4 ! 131: ! 132: /* ! 133: * Device registers ! 134: */ ! 135: struct hydevice { ! 136: short hyd_wcr; /* word count (negated) */ ! 137: u_short hyd_bar; /* bus address bits 15-0 */ ! 138: u_short hyd_csr; /* control and status */ ! 139: u_short hyd_dbuf; /* data buffer */ ! 140: }; ! 141: ! 142: /* ! 143: * CSR bit layout ! 144: */ ! 145: #define S_ERROR 0100000 /* error */ ! 146: #define S_NEX 0040000 /* non-existent memory error */ ! 147: #define S_ATTN 0020000 /* attn (always zero) */ ! 148: #ifdef PI13 ! 149: #define S_STKINTR 0010000 /* stacked interrupt */ ! 150: #else ! 151: #define S_MAINT 0010000 /* maintenance (not used) */ ! 152: #endif ! 153: #define S_A 0004000 /* device status A (recieve data available) */ ! 154: #define S_B 0002000 /* device status B (normal termination) */ ! 155: #define S_C 0001000 /* device status C (abnormal termination) */ ! 156: #ifdef PI13 ! 157: #define S_POWEROFF 0000400 /* power off indicator */ ! 158: #else ! 159: #define S_CYCLE 0000400 /* cycle (not used) */ ! 160: #endif ! 161: #define S_READY 0000200 /* ready */ ! 162: #define S_IE 0000100 /* interrupt enable */ ! 163: #define S_XBA 0000060 /* bus address bit bits 17 and 16 */ ! 164: #define S_CLRINT 0000014 /* clear stacked interrupt */ ! 165: #define S_IATTN 0000010 /* interrupt on attention only */ ! 166: #define S_WC 0000004 /* interrupt on word count == 0 only */ ! 167: #define S_IATTNWC 0000000 /* interrupt on word count == 0 and attention */ ! 168: #define S_BURST 0000002 /* burst mode DMA (not used) */ ! 169: #define S_GO 0000001 /* go */ ! 170: ! 171: #define XBASHIFT 12 ! 172: ! 173: #define HY_CSR_BITS "\20\ ! 174: \20ERROR\17NEX\16ATTN\15STKINTR\14RECV_DATA\13NORMAL\12ABNORMAL\11POWER\ ! 175: \10READY\07IENABLE\06XBA17\05XBA16\04IATTN\03IWC\02BURST\01GO" ! 176: ! 177: /* ! 178: * PI13 status conditions ! 179: */ ! 180: #define HYS_RECVDATA(x) (((x)->hyd_csr & S_A) != 0) /* get adapter data */ ! 181: #define HYS_NORMAL(x) (((x)->hyd_csr & S_B) != 0) /* done normally */ ! 182: #define HYS_ABNORMAL(x) (((x)->hyd_csr & S_C) != 0) /* done abnormally */ ! 183: #define HYS_ERROR(x) (((x)->hyd_csr & S_ERROR) != 0) /* error condition */ ! 184: #define HYS_DONE(x) (((x)->hyd_csr & (S_ERROR|S_B|S_C)) != 0) ! 185: ! 186: /* ! 187: * Function Codes for the Hyperchannel Adapter ! 188: * The codes are offset so they can be "or"ed into ! 189: * the reg data buffer ! 190: */ ! 191: #define HYF_XMITMSG 0x04 /* transmit message */ ! 192: #define HYF_XMITDATA 0x08 /* transmit associated data */ ! 193: #define HYF_XMITLSTDATA 0x0C /* transmit last associated data */ ! 194: #define HYF_XMITLOCMSG 0x10 /* transmit local message */ ! 195: #define HYF_INPUTMSG 0x24 /* input message proper */ ! 196: #define HYF_INPUTDATA 0x28 /* input assiciated data */ ! 197: #define HYF_STATUS 0x40 /* request status */ ! 198: #define HYF_DUMPREGS 0x50 /* dump extention registers */ ! 199: #define HYF_MARKP0 0x60 /* mark down port 0 */ ! 200: #define HYF_MARKP1 0x64 /* mark down port 1 */ ! 201: #define HYF_MARKP2 0x68 /* mark down port 2 */ ! 202: #define HYF_MARKP3 0x6C /* mark down port 3 */ ! 203: #define HYF_MP0RR 0x70 /* mark down port 0 and reroute messages */ ! 204: #define HYF_MP1RR 0x74 /* mark down port 1 and reroute messages */ ! 205: #define HYF_MP2RR 0x78 /* mark down port 2 and reroute messages */ ! 206: #define HYF_MP3RR 0x7C /* mark down port 3 and reroute messages */ ! 207: #define HYF_RSTATS 0xA0 /* read statistics */ ! 208: #define HYF_RCSTATS 0xA4 /* read and clear statistics */ ! 209: #define HYF_SETTEST 0xC0 /* enable test operations *set test mode) */ ! 210: #define HYF_SADDR_LEN 0xC4 /* test mode: set address and length */ ! 211: #define HYF_WBUFF 0xC8 /* test mode: write buffer */ ! 212: #define HYF_RBUFF 0xCC /* test mode: read buffer */ ! 213: #define HYF_CLRADAPTER 0xE0 /* clear adapter */ ! 214: #define HYF_END_OP 0xE4 /* end operation */ ! 215: #define HYF_CLRWFMSG 0xE6 /* clear wait for mwssage */ ! 216: #define HYF_WAITFORMSG 0xE8 /* wait for message */
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