linux-kernel - Re: [PATCH net] net: fec: ERR007885 Workaround for XDP TX path

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Message-Id: 
 <176484000579.696826.16588311505988091159.git-patchwork-notify@kernel.org>
Date: Thu, 04 Dec 2025 09:20:05 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Wei Fang <wei.fang@....com>
Cc: shenwei.wang@....com, xiaoning.wang@....com, andrew+netdev@...n.ch,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 imx@...ts.linux.dev, netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: fec: ERR007885 Workaround for XDP TX path

Hello:

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

On Fri, 28 Nov 2025 10:59:15 +0800 you wrote:
> The ERR007885 will lead to a TDAR race condition for mutliQ when the
> driver sets TDAR and the UDMA clears TDAR simultaneously or in a small
> window (2-4 cycles). And it will cause the udma_tx and udma_tx_arbiter
> state machines to hang. Therefore, the commit 53bb20d1faba ("net: fec:
> add variable reg_desc_active to speed things up") and the commit
> a179aad12bad ("net: fec: ERR007885 Workaround for conventional TX") have
> added the workaround to fix the potential issue for the conventional TX
> path. Similarly, the XDP TX path should also have the potential hang
> issue, so add the workaround for XDP TX path.
> 
> [...]

Here is the summary with links:
  - [net] net: fec: ERR007885 Workaround for XDP TX path
    https://git.kernel.org/netdev/net/c/e8e032cd24dd

You are awesome, thank you!
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