Re: [PATCH net-next v3] lan966x: Don't use xdp_frame when action is XDP_TX

From: patchwork-bot+netdevbpf
Date: Mon Apr 24 2023 - 22:10:31 EST


Hello:

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

On Sat, 22 Apr 2023 16:23:44 +0200 you wrote:
> When the action of an xdp program was XDP_TX, lan966x was creating
> a xdp_frame and use this one to send the frame back. But it is also
> possible to send back the frame without needing a xdp_frame, because
> it is possible to send it back using the page.
> And then once the frame is transmitted is possible to use directly
> page_pool_recycle_direct as lan966x is using page pools.
> This would save some CPU usage on this path, which results in higher
> number of transmitted frames. Bellow are the statistics:
> Frame size: Improvement:
> 64 ~8%
> 256 ~11%
> 512 ~8%
> 1000 ~0%
> 1500 ~0%
>
> [...]

Here is the summary with links:
- [net-next,v3] lan966x: Don't use xdp_frame when action is XDP_TX
https://git.kernel.org/netdev/net-next/c/700f11eb2cbe

You are awesome, thank you!
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