xref: /netbsd-src/sys/net/rss_config.h (revision 67bc29b45be0513ed7e26fd77c28d11474a4232b)
1 /*	$NetBSD: rss_config.h,v 1.2 2021/09/24 04:11:02 knakahara Exp $  */
2 
3 /*
4  * Copyright (c) 2018 Internet Initiative Japan Inc.
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  * 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  *
16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef _NET_RSS_CONFIG_H_
30 #define _NET_RSS_CONFIG_H_
31 
32 #define RSS_KEYSIZE 40
33 
34 #define RSS_TOEPLITZ_USE_TCP_PORT __BIT(0)
35 #define RSS_TOEPLITZ_USE_UDP_PORT __BIT(1)
36 
37 void	rss_getkey(uint8_t *);
38 
39 uint32_t rss_toeplitz_hash_from_mbuf_ipv4(const struct mbuf *, u_int);
40 uint32_t rss_toeplitz_hash_from_mbuf_ipv6(const struct mbuf *, u_int);
41 
42 #endif /* _NET_RSS_CONFIG_H_ */
43