linux-kernel - Re: [PATCH v2] net: ethernet: mtk_ppe: Change PPE entries number to 16K

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Message-ID: <20240704070716.118db29e@kernel.org>
Date: Thu, 4 Jul 2024 07:07:16 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Shengyu Qu <wiagn233@...look.com>
Cc: nbd@....name, sean.wang@...iatek.com, Mark-MC.Lee@...iatek.com,
 lorenzo@...nel.org, davem@...emloft.net, edumazet@...gle.com,
 pabeni@...hat.com, matthias.bgg@...il.com,
 angelogioacchino.delregno@...labora.com, pablo@...filter.org,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
 stable@...r.kernel.org, Elad Yifee <eladwf@...il.com>
Subject: Re: [PATCH v2] net: ethernet: mtk_ppe: Change PPE entries number to
 16K

On Thu, 4 Jul 2024 19:06:29 +0800 Shengyu Qu wrote:
> PCDN means P2P CDN[1]; This modification already exists in a heavily
> modified openwrt fork here[2] for over 2 years so it should be working
> with to regression. Although a higher limit would be better for PCDN use
> case, but only newer devices like MT7986 supports 32768 max entries.
> Setting to 16384 would keep old devices working.
> 
> [1] https://www.w3.org/wiki/Networks/P2P_CDN
> [2] https://github.com/coolsnowwolf/lede/blob/2ef8b6a6142798b5e58501fe12ffd10b0961947f/target/linux/ramips/files/drivers/net/ethernet/mtk/mtk_hnat/hnat.h#L604

Makes sense but not a fix, please resend without CC stable and without
the fixes tag.