netdev - Re: [PATCH net V2] net: stmmac: dwmac-loongson: Set correct {tx,rx}_fifo

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Message-Id: 
 <173941984332.756055.4356205354524855724.git-patchwork-notify@kernel.org>
Date: Thu, 13 Feb 2025 04:10:43 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Huacai Chen <chenhuacai@...ngson.cn>
Cc: chenhuacai@...nel.org, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 si.yanteng@...ux.dev, chris.chenfeiyang@...il.com,
 alexandre.torgue@...s.st.com, joabreu@...opsys.com, fancer.lancer@...il.com,
 loongarch@...ts.linux.dev, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org, stable@...r.kernel.org, horms@...nel.org,
 qiaochong@...ngson.cn
Subject: Re: [PATCH net V2] net: stmmac: dwmac-loongson: Set correct
 {tx,rx}_fifo_size

Hello:

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

On Mon, 10 Feb 2025 21:43:28 +0800 you wrote:
> Now for dwmac-loongson {tx,rx}_fifo_size are uninitialised, which means
> zero. This means dwmac-loongson doesn't support changing MTU because in
> stmmac_change_mtu() it requires the fifo size be no less than MTU. Thus,
> set the correct tx_fifo_size and rx_fifo_size for it (16KB multiplied by
> queue counts).
> 
> Here {tx,rx}_fifo_size is initialised with the initial value (also the
> maximum value) of {tx,rx}_queues_to_use. So it will keep as 16KB if we
> don't change the queue count, and will be larger than 16KB if we change
> (decrease) the queue count. However stmmac_change_mtu() still work well
> with current logic (MTU cannot be larger than 16KB for stmmac).
> 
> [...]

Here is the summary with links:
  - [net,V2] net: stmmac: dwmac-loongson: Set correct {tx,rx}_fifo_size
    https://git.kernel.org/netdev/net-next/c/8dbf0c755645

You are awesome, thank you!
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