tcp_vegas.h 940 B

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  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. /* 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. void tcp_vegas_init(struct sock *sk);
  18. void tcp_vegas_state(struct sock *sk, u8 ca_state);
  19. void tcp_vegas_pkts_acked(struct sock *sk, const struct ack_sample *sample);
  20. void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
  21. size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
  22. union tcp_cc_info *info);
  23. #endif /* __TCP_VEGAS_H */