^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * TCP Vegas congestion control interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #ifndef __TCP_VEGAS_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #define __TCP_VEGAS_H 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) /* Vegas variables */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) struct vegas {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) u32 beg_snd_nxt; /* right edge during last RTT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) u32 beg_snd_una; /* left edge during last RTT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) u32 beg_snd_cwnd; /* saves the size of the cwnd */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) u8 doing_vegas_now;/* if true, do vegas for this RTT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) u16 cntRTT; /* # of RTTs measured within last RTT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) u32 minRTT; /* min of RTTs measured within last RTT (in usec) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) u32 baseRTT; /* the min of all Vegas RTT measurements seen (in usec) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) void tcp_vegas_init(struct sock *sk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) void tcp_vegas_state(struct sock *sk, u8 ca_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) void tcp_vegas_pkts_acked(struct sock *sk, const struct ack_sample *sample);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) size_t tcp_vegas_get_info(struct sock *sk, u32 ext, int *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) union tcp_cc_info *info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #endif /* __TCP_VEGAS_H */