| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Stephen Hemminger | 7752237 | 2007-04-23 22:28:23 -0700 | [diff] [blame] | 2 | /* |
| 3 | * TCP Vegas congestion control interface |
| 4 | */ |
| 5 | #ifndef __TCP_VEGAS_H |
| 6 | #define __TCP_VEGAS_H 1 |
| 7 | |
| 8 | /* Vegas variables */ |
| 9 | struct vegas { |
| 10 | u32 beg_snd_nxt; /* right edge during last RTT */ |
| 11 | u32 beg_snd_una; /* left edge during last RTT */ |
| 12 | u32 beg_snd_cwnd; /* saves the size of the cwnd */ |
| 13 | u8 doing_vegas_now;/* if true, do vegas for this RTT */ |
| 14 | u16 cntRTT; /* # of RTTs measured within last RTT */ |
| 15 | u32 minRTT; /* min of RTTs measured within last RTT (in usec) */ |
| 16 | u32 baseRTT; /* the min of all Vegas RTT measurements seen (in usec) */ |
| 17 | }; |
| 18 | |
| Joe Perches | 7e58487 | 2013-10-18 13:48:24 -0700 | [diff] [blame] | 19 | void tcp_vegas_init(struct sock *sk); |
| 20 | void tcp_vegas_state(struct sock *sk, u8 ca_state); |
| Lawrence Brakmo | 756ee17 | 2016-05-11 10:02:13 -0700 | [diff] [blame] | 21 | void tcp_vegas_pkts_acked(struct sock *sk, const struct ack_sample *sample); |
| Joe Perches | 7e58487 | 2013-10-18 13:48:24 -0700 | [diff] [blame] | 22 | void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event); |
| Eric Dumazet | 64f40ff | 2015-04-28 16:23:48 -0700 | [diff] [blame] | 23 | size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr, |
| 24 | union tcp_cc_info *info); |
| Stephen Hemminger | 7752237 | 2007-04-23 22:28:23 -0700 | [diff] [blame] | 25 | |
| 26 | #endif /* __TCP_VEGAS_H */ |