1 /* $NetBSD */ 2 3 /* 4 * Copyright (c) 2006 Jachym Holecek 5 * All rights reserved. 6 * 7 * Written for "DSP&FPGA Custom Design". 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _VIRTEX_DEV_TEMACVAR_H_ 33 #define _VIRTEX_DEV_TEMACVAR_H_ 34 35 /* TEMAC specific fields in Rx CDMAC descriptor. */ 36 #define desc_rxstat desc_user3 37 #define RXSTAT_GOOD 0x80000000 /* Good frame */ 38 #define RXSTAT_BAD 0x40000000 /* Bad frame */ 39 #define RXSTAT_FLOW 0x20000000 /* Flow control frame */ 40 #define RXSTAT_VLAN 0x10000000 /* Contains VLAN tag */ 41 #define RXSTAT_BADCRC 0x08000000 /* Failed FCS validation */ 42 #define RXSTAT_TRUNC 0x04000000 /* Truncated, FIFO overflow */ 43 #define RXSTAT_RAWCSUM_MASK 0x0000ffff /* Precalculated raw csum */ 44 45 #define RXSTAT_SICK (RXSTAT_BAD | RXSTAT_FLOW | RXSTAT_BADCRC | \ 46 RXSTAT_TRUNC) 47 48 #define desc_rxsize desc_user4 49 #define RXSIZE_MASK 0x0000ffff /* Length of frame in bytes */ 50 51 /* TEMAC specific fields in Tx CDMAC descriptor. */ 52 #define desc_txcon desc_user0 /* Careful: overlayed w/ stat */ 53 #define TXCON_TCP 0x0002 /* TCP segment, UDP otherwise */ 54 #define TXCON_CSUM 0x0001 /* Calculate checksum in hw */ 55 56 #define desc_txcsum desc_user1 57 #define CSUM_INSERT_MASK 0x003ff /* Offset where to insert cs */ 58 #define CSUM_START_MASK 0x003ff /* Offset where calc starts */ 59 #define CSUM_START_OFFS 16 60 61 #define desc_txcsumini desc_user2 /* Initial value for cs calc */ 62 #define CSUMINI_MASK 0xffff 63 64 #endif /* _VIRTEX_DEV_TEMACVAR_H_ */ 65