netdev - RE: [RFC PATCH v4 bpf-next 03/12] tcp: bpf: Add TCP_BPF_RTO_MIN for bpf

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Message-ID: <5f28b37a23387_62272b02d7c945b4c7@john-XPS-13-9370.notmuch>
Date:   Mon, 03 Aug 2020 18:01:46 -0700
From:   John Fastabend <john.fastabend@...il.com>
To:     Martin KaFai Lau <kafai@...com>, bpf@...r.kernel.org
Cc:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Eric Dumazet <edumazet@...gle.com>, kernel-team@...com,
        Lawrence Brakmo <brakmo@...com>,
        Neal Cardwell <ncardwell@...gle.com>, netdev@...r.kernel.org,
        Yuchung Cheng <ycheng@...gle.com>
Subject: RE: [RFC PATCH v4 bpf-next 03/12] tcp: bpf: Add TCP_BPF_RTO_MIN for
 bpf_setsockopt

Martin KaFai Lau wrote:
> This patch adds bpf_setsockopt(TCP_BPF_RTO_MIN) to allow bpf prog
> to set the min rto of a connection.  It could be used together
> with the earlier patch which has added bpf_setsockopt(TCP_BPF_DELACK_MAX).
> 
> A later selftest patch will communicate the max delay ack in a
> bpf tcp header option and then the receiving side can use
> bpf_setsockopt(TCP_BPF_RTO_MIN) to set a shorter rto.
> 
> Reviewed-by: Eric Dumazet <edumazet@...gle.com>
> Signed-off-by: Martin KaFai Lau <kafai@...com>

Acked-by: John Fastabend <john.fastabend@...il.com>