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Date:   Mon, 03 Aug 2020 18:01:46 -0700
From:   John Fastabend <>
To:     Martin KaFai Lau <>,
Cc:     Alexei Starovoitov <>,
        Daniel Borkmann <>,
        Eric Dumazet <>,,
        Lawrence Brakmo <>,
        Neal Cardwell <>,,
        Yuchung Cheng <>
Subject: RE: [RFC PATCH v4 bpf-next 03/12] tcp: bpf: Add TCP_BPF_RTO_MIN for

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 <>
> Signed-off-by: Martin KaFai Lau <>

Acked-by: John Fastabend <>

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