1/*
2 *   BSD LICENSE
3 *
4 *   Copyright(c) 2017 Cavium, Inc.. All rights reserved.
5 *   All rights reserved.
6 *
7 *   Redistribution and use in source and binary forms, with or without
8 *   modification, are permitted provided that the following conditions
9 *   are met:
10 *
11 *     * Redistributions of source code must retain the above copyright
12 *       notice, this list of conditions and the following disclaimer.
13 *     * Redistributions in binary form must reproduce the above copyright
14 *       notice, this list of conditions and the following disclaimer in
15 *       the documentation and/or other materials provided with the
16 *       distribution.
17 *     * Neither the name of Cavium, Inc. nor the names of its
18 *       contributors may be used to endorse or promote products derived
19 *       from this software without specific prior written permission.
20 *
21 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 *   OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#ifndef __LIO_RSS_H__
35#define __LIO_RSS_H__
36
37#ifdef RSS
38
39#include <net/rss_config.h>
40#include <netinet/in_rss.h>
41
42#define LIO_RSS_TABLE_SZ	128
43#define LIO_RSS_KEY_SZ		40
44
45struct lio_rss_params {
46#define LIO_RSS_PARAM_SIZE	16
47	struct param {
48#if BYTE_ORDER == LITTLE_ENDIAN
49		uint64_t	flags:16;
50		uint64_t	hashinfo:32;
51		uint64_t	itablesize:16;
52
53		uint64_t	hashkeysize:16;
54		uint64_t	reserved:48;
55#elif BYTE_ORDER == BIG_ENDIAN
56		uint64_t	itablesize:16;
57		uint64_t	hashinfo:32;
58		uint64_t	flags:16;
59
60		uint64_t	reserved:48;
61		uint64_t	hashkeysize:16;
62#else
63#error Undefined BYTE_ORDER
64#endif
65	}	param;
66
67	uint8_t	itable[LIO_RSS_TABLE_SZ];
68	uint8_t	key[LIO_RSS_KEY_SZ];
69
70};
71
72struct lio_rss_params_set {
73	uint8_t		key[LIO_RSS_KEY_SZ];
74	uint8_t		fw_itable[LIO_RSS_TABLE_SZ];
75	uint64_t	hashinfo;
76
77};
78
79#endif	/* RSS */
80
81#define LIO_RSS_HASH_IPV4		0x100
82#define LIO_RSS_HASH_TCP_IPV4		0x200
83#define LIO_RSS_HASH_IPV6		0x400
84#define LIO_RSS_HASH_IPV6_EX		0x800
85#define LIO_RSS_HASH_TCP_IPV6		0x1000
86#define LIO_RSS_HASH_TCP_IPV6_EX	0x2000
87
88#endif	/* __LIO_RSS_H__ */
89