diff options
| author | Miao Xu <miaxu@meta.com> | 2024-05-01 21:23:16 -0700 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-05-02 16:26:56 -0700 |
| commit | 57bfc7605ca5b102ba336779ae9adbc5bbba1d96 (patch) | |
| tree | 64660f733da0fc7270741e7822326c6c705e03fa /tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c | |
| parent | f8c423d1ca4f4f4224bb6ca486478b7f51a91701 (diff) | |
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 'tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c index fcfbfe0336b4..52b610357309 100644 --- a/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c +++ b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c @@ -5,7 +5,7 @@ #include <bpf/bpf_tracing.h> extern void bbr_init(struct sock *sk) __ksym; -extern void bbr_main(struct sock *sk, const struct rate_sample *rs) __ksym; +extern void bbr_main(struct sock *sk, u32 ack, int flag, const struct rate_sample *rs) __ksym; extern u32 bbr_sndbuf_expand(struct sock *sk) __ksym; extern u32 bbr_undo_cwnd(struct sock *sk) __ksym; extern void bbr_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym; @@ -42,9 +42,9 @@ void BPF_PROG(in_ack_event, struct sock *sk, u32 flags) } SEC("struct_ops/cong_control") -void BPF_PROG(cong_control, struct sock *sk, const struct rate_sample *rs) +void BPF_PROG(cong_control, struct sock *sk, u32 ack, int flag, const struct rate_sample *rs) { - bbr_main(sk, rs); + bbr_main(sk, ack, flag, rs); } SEC("struct_ops/cong_avoid") |