blob: ef9da5306c685b269cc1efe64ee40196faf11e66 [file] [log] [blame]
Stephen Hemminger77522372007-04-23 22:28:23 -07001/*
2 * TCP Vegas congestion control interface
3 */
4#ifndef __TCP_VEGAS_H
5#define __TCP_VEGAS_H 1
6
7/* Vegas variables */
8struct vegas {
9 u32 beg_snd_nxt; /* right edge during last RTT */
10 u32 beg_snd_una; /* left edge during last RTT */
11 u32 beg_snd_cwnd; /* saves the size of the cwnd */
12 u8 doing_vegas_now;/* if true, do vegas for this RTT */
13 u16 cntRTT; /* # of RTTs measured within last RTT */
14 u32 minRTT; /* min of RTTs measured within last RTT (in usec) */
15 u32 baseRTT; /* the min of all Vegas RTT measurements seen (in usec) */
16};
17
Joe Perches7e584872013-10-18 13:48:24 -070018void tcp_vegas_init(struct sock *sk);
19void tcp_vegas_state(struct sock *sk, u8 ca_state);
20void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us);
21void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
Eric Dumazet64f40ff2015-04-28 16:23:48 -070022size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
23 union tcp_cc_info *info);
Stephen Hemminger77522372007-04-23 22:28:23 -070024
25#endif /* __TCP_VEGAS_H */