linux-kernel - Re: [PATCH net 1/1] net: stmmac: Fix overall budget calculation for rxtx

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Date:   Sun, 05 Sep 2021 12:10:05 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Song Yoong Siang <yoong.siang.song@...el.com>
Cc:     peppe.cavallaro@...com, alexandre.torgue@...com,
        joabreu@...opsys.com, davem@...emloft.net, kuba@...nel.org,
        mcoquelin.stm32@...il.com, ast@...nel.org, daniel@...earbox.net,
        hawk@...nel.org, john.fastabend@...il.com,
        boon.leong.ong@...el.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org
Subject: Re: [PATCH net 1/1] net: stmmac: Fix overall budget calculation for
 rxtx_napi

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Fri,  3 Sep 2021 10:00:26 +0800 you wrote:
> tx_done is not used for napi_complete_done(). Thus, NAPI busy polling
> mechanism by gro_flush_timeout and napi_defer_hard_irqs will not able
> be triggered after a packet is transmitted when there is no receive
> packet.
> 
> Fix this by taking the maximum value between tx_done and rx_done as
> overall budget completed by the rxtx NAPI poll to ensure XDP Tx ZC
> operation is continuously polling for next Tx frame. This gives
> benefit of lower packet submission processing latency and jitter
> under XDP Tx ZC mode.
> 
> [...]

Here is the summary with links:
  - [net,1/1] net: stmmac: Fix overall budget calculation for rxtx_napi
    https://git.kernel.org/netdev/net/c/81d0885d68ec

You are awesome, thank you!
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