netdev - Re: [PATCH net] net: enetc: initialize SW PIR and CIR based HW PIR and CIR values

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Message-Id: 
 <175922280676.1902251.2156544414820844961.git-patchwork-notify@kernel.org>
Date: Tue, 30 Sep 2025 09:00:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Wei Fang <wei.fang@....com>
Cc: claudiu.manoil@....com, vladimir.oltean@....com, xiaoning.wang@....com,
 andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, Frank.Li@....com, imx@...ts.linux.dev,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: enetc: initialize SW PIR and CIR based HW PIR
 and
 CIR values

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Fri, 26 Sep 2025 09:39:53 +0800 you wrote:
> Software can only initialize the PIR and CIR of the command BD ring after
> a FLR, and these two registers can only be set to 0. But the reset values
> of these two registers are 0, so software does not need to update them.
> If there is no a FLR and PIR and CIR are not 0, resetting them to 0 or
> other values by software will cause the command BD ring to work
> abnormally. This is because of an internal context in the ring prefetch
> logic that will retain the state from the first incarnation of the ring
> and continue prefetching from the stale location when the ring is
> reinitialized. The internal context can only be reset by the FLR.
> 
> [...]

Here is the summary with links:
  - [net] net: enetc: initialize SW PIR and CIR based HW PIR and CIR values
    https://git.kernel.org/netdev/net/c/2aff4420efc2

You are awesome, thank you!
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