1/*
2 * TCP Vegas congestion control interface
3 */
4#ifndef __TCP_VEGAS_H
5#define __TCP_VEGAS_H 1
6
7/* Vegas variables */
8struct 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
18extern void tcp_vegas_init(struct sock *sk);
19extern void tcp_vegas_state(struct sock *sk, u8 ca_state);
20extern void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, ktime_t last);
21extern void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
22extern void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
23
24#endif	/* __TCP_VEGAS_H */
25