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Linux kernel mirror (for testing)
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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
48enum CPL_opcode {
49 CPL_RX_PKT = 0xAD,
50 CPL_TX_PKT = 0xB2,
51 CPL_TX_PKT_LSO = 0xB6,
52};
53
54enum { /* 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
61struct 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 */
75struct 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
95struct 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
125struct 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_ */