netdev - Re: [PATCH v13 net-next 15/15] selftests/net: packetdrill: add TCP Accurate ECN cases

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Message-ID: <CANn89i+F8Hmx3-DoOBcW_tJnsyqeeKHZm+_jC1nk5hrnBWN2Jg@mail.gmail.com>
Date: Sun, 1 Feb 2026 11:26:14 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: chia-yu.chang@...ia-bell-labs.com
Cc: pabeni@...hat.com, parav@...dia.com, linux-doc@...r.kernel.org, 
	corbet@....net, horms@...nel.org, dsahern@...nel.org, kuniyu@...gle.com, 
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	ij@...nel.org, ncardwell@...gle.com, koen.de_schepper@...ia-bell-labs.com, 
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	mirja.kuehlewind@...csson.com, cheshire@...le.com, rs.ietf@....at, 
	Jason_Livingood@...cast.com, vidhi_goel@...le.com
Subject: Re: [PATCH v13 net-next 15/15] selftests/net: packetdrill: add TCP
 Accurate ECN cases

On Sat, Jan 31, 2026 at 11:26 PM <chia-yu.chang@...ia-bell-labs.com> wrote:
>
> From: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com>
>
> Linux Accurate ECN test sets using ACE counters and AccECN options to
> cover several scenarios: Connection teardown, different ACK conditions,
> counter wrapping, SACK space grabbing, fallback schemes, negotiation
> retransmission/reorder/loss, AccECN option drop/loss, different
> handshake reflectors, data with marking, and different sysctl values.
>
> The packetdrill used is commit cbe405666c9c8698ac1e72f5e8ffc551216dfa56
> of repo: https://github.com/minuscat/packetdrill/tree/upstream_accecn.
> And corresponding patches are sent to google/packetdrill email list.
>
> Signed-off-by: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com>
> Co-developed-by: Ilpo Järvinen <ij@...nel.org>
> Signed-off-by: Ilpo Järvinen <ij@...nel.org>
> Co-developed-by: Neal Cardwell <ncardwell@...gle.com>
> Signed-off-by: Neal Cardwell <ncardwell@...gle.com>

Reviewed-by: Eric Dumazet <edumazet@...gle.com>