xref: /freebsd/sys/netinet/cc/cc_newreno.h (revision 19261079)
1 /*-
2  * Copyright (c) 2017 Tom Jones <tj@enoti.me>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _CC_NEWRENO_H
30 #define _CC_NEWRENO_H
31 
32 #define CCALGONAME_NEWRENO "newreno"
33 
34 struct newreno {
35 	uint32_t beta;
36 	uint32_t beta_ecn;
37 	uint32_t newreno_flags;
38 };
39 
40 struct cc_newreno_opts {
41 	int		name;
42 	uint32_t	val;
43 };
44 
45 #define CC_NEWRENO_BETA		1	/* Beta for normal DUP-ACK/Sack recovery */
46 #define CC_NEWRENO_BETA_ECN	2	/* ECN Beta for Abe */
47 #endif /* _CC_NEWRENO_H */
48