linux-kernel - Re: [PATCH net-next] net: mvneta: fix mvneta_config

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Date:   Fri, 10 Aug 2018 15:36:31 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Jisheng Zhang <Jisheng.Zhang@...aptics.com>
Cc:     Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-arm-kernel@...ts.infradead.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next] net: mvneta: fix mvneta_config_rss on armada
 3700

On Fri, Aug 10, 2018 at 11:36:27AM +0800, Jisheng Zhang wrote:
> The mvneta Ethernet driver is used on a few different Marvell SoCs.
> Some SoCs have per cpu interrupts for Ethernet events, the driver uses
> a per CPU napi structure for this case. Some SoCs such as armada 3700
> have a single interrupt for Ethernet events, the driver uses a global
> napi structure for this case.
> 
> Current mvneta_config_rss() always operates the per cpu napi structure.
> Fix it by operating a global napi for "single interrupt" case, and per
> cpu napi structure for remaining cases.
> 
> Signed-off-by: Jisheng Zhang <Jisheng.Zhang@...aptics.com>
> Fixes: 2636ac3cc2b4 ("net: mvneta: Add network support for Armada 3700 SoC")

Looks reasonable.

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew