sys/arch/evbppc/virtex/dev/temacvar.h

   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_ */