| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * TCP Vegas congestion control interface |
| */ |
| #ifndef __TCP_VEGAS_H |
| #define __TCP_VEGAS_H 1 |
| |
| /* Vegas variables */ |
| struct vegas { |
| u32 beg_snd_nxt; /* right edge during last RTT */ |
| u32 beg_snd_una; /* left edge during last RTT */ |
| u32 beg_snd_cwnd; /* saves the size of the cwnd */ |
| u8 doing_vegas_now;/* if true, do vegas for this RTT */ |
| u16 cntRTT; /* # of RTTs measured within last RTT */ |
| u32 minRTT; /* min of RTTs measured within last RTT (in usec) */ |
| u32 baseRTT; /* the min of all Vegas RTT measurements seen (in usec) */ |
| }; |
| |
| void tcp_vegas_init(struct sock *sk); |
| void tcp_vegas_state(struct sock *sk, u8 ca_state); |
| void tcp_vegas_pkts_acked(struct sock *sk, const struct ack_sample *sample); |
| void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event); |
| size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr, |
| union tcp_cc_info *info); |
| |
| #endif /* __TCP_VEGAS_H */ |