linux-kernel - Re: [PATCH v3 net 0/4] qbv cycle time extension/truncation

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Date: Thu, 21 Dec 2023 13:57:08 +0800
From: "Abdul Rahim, Faizal" <faizal.abdul.rahim@...ux.intel.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: Vladimir Oltean <vladimir.oltean@....com>,
 Vinicius Costa Gomes <vinicius.gomes@...el.com>,
 Jamal Hadi Salim <jhs@...atatu.com>, Cong Wang <xiyou.wangcong@...il.com>,
 Jiri Pirko <jiri@...nulli.us>, "David S . Miller" <davem@...emloft.net>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 net 0/4] qbv cycle time extension/truncation

On 20/12/2023 1:02 am, Eric Dumazet wrote:
> On Tue, Dec 19, 2023 at 9:17 AM Faizal Rahim
> <faizal.abdul.rahim@...ux.intel.com> wrote:
>>
>> According to IEEE Std. 802.1Q-2018 section Q.5 CycleTimeExtension,
>> the Cycle Time Extension variable allows this extension of the last old
>> cycle to be done in a defined way. If the last complete old cycle would
>> normally end less than OperCycleTimeExtension nanoseconds before the new
>> base time, then the last complete cycle before AdminBaseTime is reached
>> is extended so that it ends at AdminBaseTime.
>>
> 
> Hmm... Is this series fixing any of the pending syzbot bugs ?

Not really I think ? I found some bugs in this area when I tried to 
enable/fix software QBV cycle time extension for my project.