netdev - [PATCH bpf-next v2 0/2] Align BPF TCP CCs implementing cong

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Message-ID: <20220609204702.2351369-1-jthinz@mailbox.tu-berlin.de>
Date:   Thu, 9 Jun 2022 22:47:00 +0200
From:   Jörn-Thorben Hinz <jthinz@...lbox.tu-berlin.de>
To:     <bpf@...r.kernel.org>
CC:     Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>, <netdev@...r.kernel.org>,
        Jörn-Thorben Hinz <jthinz@...lbox.tu-berlin.de>
Subject: [PATCH bpf-next v2 0/2] Align BPF TCP CCs implementing cong_control() with non-BPF CCs

This small series corrects some inconveniences for a BPF TCP CC that
implements and uses tcp_congestion_ops.cong_control(). Until now, such a
CC did not have all necessary write access to struct sock and
unnecessarily needed to implement cong_avoid().

---
v2:
 - Drop redundant check for required functions and just rely on
   tcp_register_congestion_control() (Martin KaFai Lau)

Jörn-Thorben Hinz (2):
  bpf: Allow a TCP CC to write sk_pacing_rate and sk_pacing_status
  bpf: Require only one of cong_avoid() and cong_control() from a TCP CC

 net/ipv4/bpf_tcp_ca.c | 38 ++++++--------------------------------
 1 file changed, 6 insertions(+), 32 deletions(-)

-- 
2.30.2