1 /*
2  * drivers/net/ethernet/mellanox/mlxsw/txheader.h
3  * Copyright (c) 2015 Mellanox Technologies. All rights reserved.
4  * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com>
5  * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com>
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the names of the copyright holders nor the names of its
16  *    contributors may be used to endorse or promote products derived from
17  *    this software without specific prior written permission.
18  *
19  * Alternatively, this software may be distributed under the terms of the
20  * GNU General Public License ("GPL") version 2 as published by the Free
21  * Software Foundation.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
24  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
27  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
30  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
31  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
32  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
33  * POSSIBILITY OF SUCH DAMAGE.
34  */
35 
36 #ifndef _MLXSW_TXHEADER_H
37 #define _MLXSW_TXHEADER_H
38 
39 #define MLXSW_TXHDR_LEN 0x10
40 #define MLXSW_TXHDR_VERSION_0 0
41 #define MLXSW_TXHDR_VERSION_1 1
42 
43 enum {
44 	MLXSW_TXHDR_ETH_CTL,
45 	MLXSW_TXHDR_ETH_DATA,
46 };
47 
48 #define MLXSW_TXHDR_PROTO_ETH 1
49 
50 enum {
51 	MLXSW_TXHDR_ETCLASS_0,
52 	MLXSW_TXHDR_ETCLASS_1,
53 	MLXSW_TXHDR_ETCLASS_2,
54 	MLXSW_TXHDR_ETCLASS_3,
55 	MLXSW_TXHDR_ETCLASS_4,
56 	MLXSW_TXHDR_ETCLASS_5,
57 	MLXSW_TXHDR_ETCLASS_6,
58 	MLXSW_TXHDR_ETCLASS_7,
59 };
60 
61 enum {
62 	MLXSW_TXHDR_RDQ_OTHER,
63 	MLXSW_TXHDR_RDQ_EMAD = 0x1f,
64 };
65 
66 #define MLXSW_TXHDR_CTCLASS3 0
67 #define MLXSW_TXHDR_CPU_SIG 0
68 #define MLXSW_TXHDR_SIG 0xE0E0
69 #define MLXSW_TXHDR_STCLASS_NONE 0
70 
71 enum {
72 	MLXSW_TXHDR_NOT_EMAD,
73 	MLXSW_TXHDR_EMAD,
74 };
75 
76 enum {
77 	MLXSW_TXHDR_TYPE_DATA,
78 	MLXSW_TXHDR_TYPE_CONTROL = 6,
79 };
80 
81 #endif
82