linux-kernel - Re: [PATCH v3 net] octeontx2-pf: fix page

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Message-Id: <169295462187.4538.1798354302418807618.git-patchwork-notify@kernel.org>
Date:   Fri, 25 Aug 2023 09:10:21 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Ratheesh Kannoth <rkannoth@...vell.com>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        sgoutham@...vell.com, gakula@...vell.com, sbhatta@...vell.com,
        hkelam@...vell.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, hawk@...nel.org,
        alexander.duyck@...il.com, ilias.apalodimas@...aro.org,
        linyunsheng@...wei.com, aleksander.lobakin@...el.com
Subject: Re: [PATCH v3 net] octeontx2-pf: fix page_pool creation fail for rings >
 32k

Hello:

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

On Thu, 24 Aug 2023 08:33:01 +0530 you wrote:
> octeontx2 driver calls page_pool_create() during driver probe()
> and fails if queue size > 32k. Page pool infra uses these buffers
> as shock absorbers for burst traffic. These pages are pinned down
> over time as working sets varies, due to the recycling nature
> of page pool, given page pool (currently) don't have a shrinker
> mechanism, the pages remain pinned down in ptr_ring.
> Instead of clamping page_pool size to 32k at
> most, limit it even more to 2k to avoid wasting memory.
> 
> [...]

Here is the summary with links:
  - [v3,net] octeontx2-pf: fix page_pool creation fail for rings > 32k
    https://git.kernel.org/netdev/net/c/49fa4b0d0670

You are awesome, thank you!
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