xref: /freebsd/sys/dev/liquidio/lio_rss.h (revision 2a58b312b62f908ec92311d1bd8536dbaeb8e55b)
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 /*$FreeBSD$*/
34 
35 #ifndef __LIO_RSS_H__
36 #define __LIO_RSS_H__
37 
38 #ifdef RSS
39 
40 #include <net/rss_config.h>
41 #include <netinet/in_rss.h>
42 
43 #define LIO_RSS_TABLE_SZ	128
44 #define LIO_RSS_KEY_SZ		40
45 
46 struct lio_rss_params {
47 #define LIO_RSS_PARAM_SIZE	16
48 	struct param {
49 #if BYTE_ORDER == LITTLE_ENDIAN
50 		uint64_t	flags:16;
51 		uint64_t	hashinfo:32;
52 		uint64_t	itablesize:16;
53 
54 		uint64_t	hashkeysize:16;
55 		uint64_t	reserved:48;
56 #elif BYTE_ORDER == BIG_ENDIAN
57 		uint64_t	itablesize:16;
58 		uint64_t	hashinfo:32;
59 		uint64_t	flags:16;
60 
61 		uint64_t	reserved:48;
62 		uint64_t	hashkeysize:16;
63 #else
64 #error Undefined BYTE_ORDER
65 #endif
66 	}	param;
67 
68 	uint8_t	itable[LIO_RSS_TABLE_SZ];
69 	uint8_t	key[LIO_RSS_KEY_SZ];
70 
71 };
72 
73 struct lio_rss_params_set {
74 	uint8_t		key[LIO_RSS_KEY_SZ];
75 	uint8_t		fw_itable[LIO_RSS_TABLE_SZ];
76 	uint64_t	hashinfo;
77 
78 };
79 
80 #endif	/* RSS */
81 
82 #define LIO_RSS_HASH_IPV4		0x100
83 #define LIO_RSS_HASH_TCP_IPV4		0x200
84 #define LIO_RSS_HASH_IPV6		0x400
85 #define LIO_RSS_HASH_IPV6_EX		0x800
86 #define LIO_RSS_HASH_TCP_IPV6		0x1000
87 #define LIO_RSS_HASH_TCP_IPV6_EX	0x2000
88 
89 #endif	/* __LIO_RSS_H__ */
90