summaryrefslogtreecommitdiff
path: root/include/linux/tfrc.h
blob: 31a9b25276fe02d5d951f243b863c735cc8fd3e4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
#ifndef _LINUX_TFRC_H_
#define _LINUX_TFRC_H_
/*
 *  TFRC - Data Structures for the TCP-Friendly Rate Control congestion
 *         control mechanism as specified in RFC 3448.
 *
 *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
 *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.nz>
 *  Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
 *  Copyright (c) 2003 Nils-Erik Mattsson, Joacim Haggmark, Magnus Erixzon
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 */
#include <linux/types.h>

/** 	tfrc_rx_info    -    TFRC Receiver Data Structure
 *
 * 	@tfrcrx_x_recv:	receiver estimate of sending rate (3.2.2)
 * 	@tfrcrx_rtt:	round-trip-time (communicated by sender)
 * 	@tfrcrx_p:	current estimate of loss event rate (3.2.2)
 */
struct tfrc_rx_info {
  	__u32 tfrcrx_x_recv;
	__u32 tfrcrx_rtt;
  	__u32 tfrcrx_p;
};

/** 	tfrc_tx_info    -    TFRC Sender Data Structure
 *
 * 	@tfrctx_x:	computed transmit rate (4.3 (4))
 * 	@tfrctx_x_recv: receiver estimate of send rate (4.3)
 * 	@tfrctx_x_calc:	return value of throughput equation (3.1)
 * 	@tfrctx_rtt:	(moving average) estimate of RTT (4.3)
 * 	@tfrctx_p:	current loss event rate (5.4)
 * 	@tfrctx_rto:	estimate of RTO, equals 4*RTT (4.3)
 * 	@tfrctx_ipi:	inter-packet interval (4.6)
 */
struct tfrc_tx_info {
	__u32 tfrctx_x;
	__u32 tfrctx_x_recv;
	__u32 tfrctx_x_calc;
	__u32 tfrctx_rtt;
	__u32 tfrctx_p;
	__u32 tfrctx_rto;
	__u32 tfrctx_ipi;
};

#endif /* _LINUX_TFRC_H_ */