netdev - Re: [PATCH net-next 1/2] net/mlx5e: Update features on MTU change

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Message-ID: <20241025085205.GE1202098@kernel.org>
Date: Fri, 25 Oct 2024 09:52:05 +0100
From: Simon Horman <horms@...nel.org>
To: Tariq Toukan <tariqt@...dia.com>
Cc: "David S. Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Andrew Lunn <andrew+netdev@...n.ch>, netdev@...r.kernel.org,
	Saeed Mahameed <saeedm@...dia.com>, Gal Pressman <gal@...dia.com>,
	Leon Romanovsky <leonro@...dia.com>,
	Dragos Tatulea <dtatulea@...dia.com>
Subject: Re: [PATCH net-next 1/2] net/mlx5e: Update features on MTU change

On Thu, Oct 24, 2024 at 07:41:32PM +0300, Tariq Toukan wrote:
> From: Dragos Tatulea <dtatulea@...dia.com>
> 
> When the MTU changes successfully, trigger netdev_update_features() to
> enable features in wanted state if applicable.
> 
> An example of such scenario:
> $ ip link set dev eth1 up
> $ ethtool --set-ring eth1 rx 8192
> $ ip link set dev eth1 mtu 9000
> $ ethtool --features eth1 rx-gro-hw on --> fails
> $ ip link set dev eth1 mtu 7000
> 
> With this patch, HW GRO will be turned on automatically because
> it is set in the device's wanted_features.
> 
> Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
> Reviewed-by: Gal Pressman <gal@...dia.com>
> Signed-off-by: Tariq Toukan <tariqt@...dia.com>

Reviewed-by: Simon Horman <horms@...nel.org>