/*
   * 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, u32 cnt, s32 rtt_us);
  void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
  void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
  
  #endif	/* __TCP_VEGAS_H */