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