netdev - Re: [PATCH net v2] net/mlx5e: do as little as possible in napi poll when budget is 0

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Date: Fri, 19 May 2023 07:50:33 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jakub Kicinski <kuba@...nel.org>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
 pabeni@...hat.com, tariqt@...dia.com, saeedm@...dia.com, leon@...nel.org,
 brouer@...hat.com
Subject: Re: [PATCH net v2] net/mlx5e: do as little as possible in napi poll when
 budget is 0

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Tue, 16 May 2023 18:59:35 -0700 you wrote:
> NAPI gets called with budget of 0 from netpoll, which has interrupts
> disabled. We should try to free some space on Tx rings and nothing
> else.
> 
> Specifically do not try to handle XDP TX or try to refill Rx buffers -
> we can't use the page pool from IRQ context. Don't check if IRQs moved,
> either, that makes no sense in netpoll. Netpoll calls _all_ the rings
> from whatever CPU it happens to be invoked on.
> 
> [...]

Here is the summary with links:
  - [net,v2] net/mlx5e: do as little as possible in napi poll when budget is 0
    https://git.kernel.org/netdev/net/c/afbed3f74830

You are awesome, thank you!
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