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 */ 9struct 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 19void tcp_vegas_init(struct sock *sk); 20void tcp_vegas_state(struct sock *sk, u8 ca_state); 21void tcp_vegas_pkts_acked(struct sock *sk, const struct ack_sample *sample); 22void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event); 23size_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