xref: /freebsd/sys/dev/liquidio/lio_rss.h (revision 7fdf597e96a02165cfe22ff357b857d5fa15ed8a)
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 
45 struct 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 
72 struct 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