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Linux/net/ipv4/tcp_vegas.h

  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, const struct ack_sample *sample);
 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 

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