1 /* 2 * TCP Vegas congestion control interface 3 */ 4 #ifndef __TCP_VEGAS_H 5 #define __TCP_VEGAS_H 1 6 7 /* Vegas variables */ 8 struct 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 18 void tcp_vegas_init(struct sock *sk); 19 void tcp_vegas_state(struct sock *sk, u8 ca_state); 20 void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us); 21 void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event); 22 size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr, 23 union tcp_cc_info *info); 24 25 #endif /* __TCP_VEGAS_H */ 26