diff options
| author | Miao Xu <miaxu@meta.com> | 2024-05-02 06:23:16 +0200 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-05-03 01:26:56 +0200 |
| commit | 57bfc7605ca5b102ba336779ae9adbc5bbba1d96 (patch) | |
| tree | 64660f733da0fc7270741e7822326c6c705e03fa /include/net/tcp.h | |
| parent | Merge branch 'selftests/bpf: Add sockaddr tests for kernel networking' (diff) | |
| download | linux-57bfc7605ca5b102ba336779ae9adbc5bbba1d96.tar.xz linux-57bfc7605ca5b102ba336779ae9adbc5bbba1d96.zip | |
tcp: Add new args for cong_control in tcp_congestion_ops
This patch adds two new arguments for cong_control of struct
tcp_congestion_ops:
- ack
- flag
These two arguments are inherited from the caller tcp_cong_control in
tcp_intput.c. One use case of them is to update cwnd and pacing rate
inside cong_control based on the info they provide. For example, the
flag can be used to decide if it is the right time to raise or reduce a
sender's cwnd.
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Miao Xu <miaxu@meta.com>
Link: https://lore.kernel.org/r/20240502042318.801932-2-miaxu@meta.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index fe98fb01879b..7294da8fb780 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1172,7 +1172,7 @@ struct tcp_congestion_ops { /* call when packets are delivered to update cwnd and pacing rate, * after all the ca_state processing. (optional) */ - void (*cong_control)(struct sock *sk, const struct rate_sample *rs); + void (*cong_control)(struct sock *sk, u32 ack, int flag, const struct rate_sample *rs); /* new value of cwnd after loss (required) */ |