1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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 | |
19 | void tcp_vegas_init(struct sock *sk); |
20 | void tcp_vegas_state(struct sock *sk, u8 ca_state); |
21 | void tcp_vegas_pkts_acked(struct sock *sk, const struct ack_sample *sample); |
22 | void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event); |
23 | size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr, |
24 | union tcp_cc_info *info); |
25 | |
26 | #endif /* __TCP_VEGAS_H */ |
27 | |