netdev - Re: [PATCH net-next v7] net/mlx5: Reclaim max 50K pages at once

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Message-Id: 
 <172252863376.25785.1041968269400834638.git-patchwork-notify@kernel.org>
Date: Thu, 01 Aug 2024 16:10:33 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Anand Khoje <anand.a.khoje@...cle.com>
Cc: linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
 netdev@...r.kernel.org, saeedm@...lanox.com, leon@...nel.org,
 tariqt@...dia.com, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 davem@...emloft.net, rama.nichanamatlu@...cle.com,
 manjunath.b.patil@...cle.com
Subject: Re: [PATCH net-next v7] net/mlx5: Reclaim max 50K pages at once

Hello:

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

On Tue, 30 Jul 2024 13:06:33 +0530 you wrote:
> In non FLR context, at times CX-5 requests release of ~8 million FW pages.
> This needs humongous number of cmd mailboxes, which to be released once
> the pages are reclaimed. Release of humongous number of cmd mailboxes is
> consuming cpu time running into many seconds. Which with non preemptible
> kernels is leading to critical process starving on that cpu’s RQ.
> On top of it, the FW does not use all the mailbox messages as it has a
> limit of releasing 50K pages at once per MLX5_CMD_OP_MANAGE_PAGES +
> MLX5_PAGES_TAKE device command. Hence, the allocation of these many
> mailboxes is extra and adds unnecessary overhead.
> To alleviate this, this change restricts the total number of pages
> a worker will try to reclaim to maximum 50K pages in one go.
> 
> [...]

Here is the summary with links:
  - [net-next,v7] net/mlx5: Reclaim max 50K pages at once
    https://git.kernel.org/netdev/net-next/c/501c3005f031

You are awesome, thank you!
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