netdev - Re: [PATCH net] bnxt_en: Fix XDP

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Message-Id: 
 <176490481577.1084773.5573782764784253070.git-patchwork-notify@kernel.org>
Date: Fri, 05 Dec 2025 03:20:15 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Michael Chan <michael.chan@...adcom.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, andrew+netdev@...n.ch,
 pavan.chebbi@...adcom.com, andrew.gospodarek@...adcom.com,
 pdubovitsky@...a.com, kalesh-anakkur.purayil@...adcom.com
Subject: Re: [PATCH net] bnxt_en: Fix XDP_TX path

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Tue,  2 Dec 2025 16:30:24 -0800 you wrote:
> For XDP_TX action in bnxt_rx_xdp(), clearing of the event flags is not
> correct.  __bnxt_poll_work() -> bnxt_rx_pkt() -> bnxt_rx_xdp() may be
> looping within NAPI and some event flags may be set in earlier
> iterations.  In particular, if BNXT_TX_EVENT is set earlier indicating
> some XDP_TX packets are ready and pending, it will be cleared if it is
> XDP_TX action again.  Normally, we will set BNXT_TX_EVENT again when we
> successfully call __bnxt_xmit_xdp().  But if the TX ring has no more
> room, the flag will not be set.  This will cause the TX producer to be
> ahead but the driver will not hit the TX doorbell.
> 
> [...]

Here is the summary with links:
  - [net] bnxt_en: Fix XDP_TX path
    https://git.kernel.org/netdev/net/c/0373d5c387f2

You are awesome, thank you!
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