linux-kernel - Re: [PATCH net v4 1/3] net: stmmac: Limit the number of MTL queues to hardware capability

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Message-ID: <4bff9efc-eab6-42a1-a2a6-5d4b3c4dccee@linux.dev>
Date: Tue, 28 Jan 2025 02:07:39 +0800
From: Yanteng Si <si.yanteng@...ux.dev>
To: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Jose Abreu <joabreu@...opsys.com>, Andrew Lunn <andrew+netdev@...n.ch>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: Russell King <linux@...linux.org.uk>, Furong Xu <0x1207@...il.com>,
 Joao Pinto <Joao.Pinto@...opsys.com>, netdev@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v4 1/3] net: stmmac: Limit the number of MTL queues to
 hardware capability

在 1/27/25 09:38, Kunihiko Hayashi 写道:
> The number of MTL queues to use is specified by the parameter
> "snps,{tx,rx}-queues-to-use" from stmmac_platform layer.
> 
> However, the maximum numbers of queues are constrained by upper limits
> determined by the capability of each hardware feature. It's appropriate
> to limit the values not to exceed the upper limit values and display
> a warning message.
> 
> This only works if the hardware capability has the upper limit values.
> 
> Fixes: d976a525c371 ("net: stmmac: multiple queues dt configuration")
> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Reviewed-by: Yanteng Si <si.yanteng@...ux.dev>

Thanks,
Yanteng