netdev - Re: [PATCH v20 net-next 0/6] DUALPI2 patch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <073dfdc8-dd56-47a3-b43d-4674279325e6@redhat.com>
Date: Tue, 24 Jun 2025 13:08:59 +0200
From: Paolo Abeni <pabeni@...hat.com>
To: chia-yu.chang@...ia-bell-labs.com, alok.a.tiwari@...cle.com,
 pctammela@...atatu.com, horms@...nel.org, donald.hunter@...il.com,
 xandfury@...il.com, netdev@...r.kernel.org, dave.taht@...il.com,
 jhs@...atatu.com, kuba@...nel.org, stephen@...workplumber.org,
 xiyou.wangcong@...il.com, jiri@...nulli.us, davem@...emloft.net,
 edumazet@...gle.com, andrew+netdev@...n.ch, ast@...erby.net,
 liuhangbin@...il.com, shuah@...nel.org, linux-kselftest@...r.kernel.org,
 ij@...nel.org, ncardwell@...gle.com, koen.de_schepper@...ia-bell-labs.com,
 g.white@...lelabs.com, ingemar.s.johansson@...csson.com,
 mirja.kuehlewind@...csson.com, cheshire@...le.com, rs.ietf@....at,
 Jason_Livingood@...cast.com, vidhi_goel@...le.com
Subject: Re: [PATCH v20 net-next 0/6] DUALPI2 patch

On 6/21/25 9:33 PM, chia-yu.chang@...ia-bell-labs.com wrote:
> From: Chia-Yu Chang <chia-yu.chang@...ia-bell-labs.com>
> 
>   Please find the DualPI2 patch v20.
> 
>   This patch serise adds DualPI Improved with a Square (DualPI2) with following features:
> * Supports congestion controls that comply with the Prague requirements in RFC9331 (e.g. TCP-Prague)
> * Coupled dual-queue that separates the L4S traffic in a low latency queue (L-queue), without harming remaining traffic that is scheduled in classic queue (C-queue) due to congestion-coupling using PI2 as defined in RFC9332
> * Configurable overload strategies
> * Use of sojourn time to reliably estimate queue delay
> * Supports ECN L4S-identifier (IP.ECN==0b*1) to classify traffic into respective queues
> 
> For more details of DualPI2, please refer IETF RFC9332 (https://datatracker.ietf.org/doc/html/rfc9332).

I don't have additional relevant comments, but I would appreciate any
additional review from net_sched maintainers.

Thanks,

Paolo