/* $NetBSD: temacvar.h,v 1.2 2019/04/11 14:38:05 kamil Exp $ */ /* * Copyright (c) 2006 Jachym Holecek * All rights reserved. * * Written for "DSP&FPGA Custom Design". * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _VIRTEX_DEV_TEMACVAR_H_ #define _VIRTEX_DEV_TEMACVAR_H_ /* TEMAC specific fields in Rx CDMAC descriptor. */ #define desc_rxstat desc_user3 #define RXSTAT_GOOD 0x80000000 /* Good frame */ #define RXSTAT_BAD 0x40000000 /* Bad frame */ #define RXSTAT_FLOW 0x20000000 /* Flow control frame */ #define RXSTAT_VLAN 0x10000000 /* Contains VLAN tag */ #define RXSTAT_BADCRC 0x08000000 /* Failed FCS validation */ #define RXSTAT_TRUNC 0x04000000 /* Truncated, FIFO overflow */ #define RXSTAT_RAWCSUM_MASK 0x0000ffff /* Precalculated raw csum */ #define RXSTAT_SICK (RXSTAT_BAD | RXSTAT_FLOW | RXSTAT_BADCRC | \ RXSTAT_TRUNC) #define desc_rxsize desc_user4 #define RXSIZE_MASK 0x0000ffff /* Length of frame in bytes */ /* TEMAC specific fields in Tx CDMAC descriptor. */ #define desc_txcon desc_user0 /* Careful: overlayed w/ stat */ #define TXCON_TCP 0x0002 /* TCP segment, UDP otherwise */ #define TXCON_CSUM 0x0001 /* Calculate checksum in hw */ #define desc_txcsum desc_user1 #define CSUM_INSERT_MASK 0x003ff /* Offset where to insert cs */ #define CSUM_START_MASK 0x003ff /* Offset where calc starts */ #define CSUM_START_OFFS 16 #define desc_txcsumini desc_user2 /* Initial value for cs calc */ #define CSUMINI_MASK 0xffff #endif /* _VIRTEX_DEV_TEMACVAR_H_ */ |