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   1 /*****************************************************************************
   2  *                                                                           *
   3  * File: cpl5_cmd.h                                                          *
   4  * $Revision: 1.6 $                                                          *
   5  * $Date: 2005/06/21 18:29:47 $                                              *
   6  * Description:                                                              *
   7  *  part of the Chelsio 10Gb Ethernet Driver.                                *
   8  *                                                                           *
   9  * This program is free software; you can redistribute it and/or modify      *
  10  * it under the terms of the GNU General Public License, version 2, as       *
  11  * published by the Free Software Foundation.                                *
  12  *                                                                           *
  13  * You should have received a copy of the GNU General Public License along   *
  14  * with this program; if not, write to the Free Software Foundation, Inc.,   *
  15  * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.                 *
  16  *                                                                           *
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED    *
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF      *
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.                     *
  20  *                                                                           *
  21  * http://www.chelsio.com                                                    *
  22  *                                                                           *
  23  * Copyright (c) 2003 - 2005 Chelsio Communications, Inc.                    *
  24  * All rights reserved.                                                      *
  25  *                                                                           *
  26  * Maintainers: maintainers@chelsio.com                                      *
  27  *                                                                           *
  28  * Authors: Dimitrios Michailidis   <dm@chelsio.com>                         *
  29  *          Tina Yang               <tainay@chelsio.com>                     *
  30  *          Felix Marti             <felix@chelsio.com>                      *
  31  *          Scott Bardone           <sbardone@chelsio.com>                   *
  32  *          Kurt Ottaway            <kottaway@chelsio.com>                   *
  33  *          Frank DiMambro          <frank@chelsio.com>                      *
  34  *                                                                           *
  35  * History:                                                                  *
  36  *                                                                           *
  37  ****************************************************************************/
  38
  39 #ifndef _CXGB_CPL5_CMD_H_
  40 #define _CXGB_CPL5_CMD_H_
  41
  42 #include <asm/byteorder.h>
  43
  44 #if !defined(__LITTLE_ENDIAN_BITFIELD) && !defined(__BIG_ENDIAN_BITFIELD)
  45 #error "Adjust your <asm/byteorder.h> defines"
  46 #endif
  47
  48 enum CPL_opcode {
  49         CPL_RX_PKT            = 0xAD,
  50         CPL_TX_PKT            = 0xB2,
  51         CPL_TX_PKT_LSO        = 0xB6,
  52 };
  53
  54 enum {                /* TX_PKT_LSO ethernet types */
  55         CPL_ETH_II,
  56         CPL_ETH_II_VLAN,
  57         CPL_ETH_802_3,
  58         CPL_ETH_802_3_VLAN
  59 };
  60
  61 struct cpl_rx_data {
  62         u32 rsvd0;
  63         u32 len;
  64         u32 seq;
  65         u16 urg;
  66         u8  rsvd1;
  67         u8  status;
  68 };
  69
  70 /*
  71  * We want this header's alignment to be no more stringent than 2-byte aligned.
  72  * All fields are u8 or u16 except for the length.  However that field is not
  73  * used so we break it into 2 16-bit parts to easily meet our alignment needs.
  74  */
  75 struct cpl_tx_pkt {
  76         u8 opcode;
  77 #if defined(__LITTLE_ENDIAN_BITFIELD)
  78         u8 iff:4;
  79         u8 ip_csum_dis:1;
  80         u8 l4_csum_dis:1;
  81         u8 vlan_valid:1;
  82         u8 rsvd:1;
  83 #else
  84         u8 rsvd:1;
  85         u8 vlan_valid:1;
  86         u8 l4_csum_dis:1;
  87         u8 ip_csum_dis:1;
  88         u8 iff:4;
  89 #endif
  90         u16 vlan;
  91         u16 len_hi;
  92         u16 len_lo;
  93 };
  94
  95 struct cpl_tx_pkt_lso {
  96         u8 opcode;
  97 #if defined(__LITTLE_ENDIAN_BITFIELD)
  98         u8 iff:4;
  99         u8 ip_csum_dis:1;
 100         u8 l4_csum_dis:1;
 101         u8 vlan_valid:1;
 102         u8 rsvd:1;
 103 #else
 104         u8 rsvd:1;
 105         u8 vlan_valid:1;
 106         u8 l4_csum_dis:1;
 107         u8 ip_csum_dis:1;
 108         u8 iff:4;
 109 #endif
 110         u16 vlan;
 111         u32 len;
 112
 113         u32 rsvd2;
 114         u8 rsvd3;
 115 #if defined(__LITTLE_ENDIAN_BITFIELD)
 116         u8 tcp_hdr_words:4;
 117         u8 ip_hdr_words:4;
 118 #else
 119         u8 ip_hdr_words:4;
 120         u8 tcp_hdr_words:4;
 121 #endif
 122         u16 eth_type_mss;
 123 };
 124
 125 struct cpl_rx_pkt {
 126         u8 opcode;
 127 #if defined(__LITTLE_ENDIAN_BITFIELD)
 128         u8 iff:4;
 129         u8 csum_valid:1;
 130         u8 bad_pkt:1;
 131         u8 vlan_valid:1;
 132         u8 rsvd:1;
 133 #else
 134         u8 rsvd:1;
 135         u8 vlan_valid:1;
 136         u8 bad_pkt:1;
 137         u8 csum_valid:1;
 138         u8 iff:4;
 139 #endif
 140         u16 csum;
 141         u16 vlan;
 142         u16 len;
 143 };
 144
 145 #endif /* _CXGB_CPL5_CMD_H_ */