netdev - Re: [PATCH net-next 3/9] net: ethtool: require drivers to opt into the per-RSS ctx RXFH

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Message-ID: <aEtB7G5HVX2-jB9H@MacBook-Air.local>
Date: Fri, 13 Jun 2025 00:09:00 +0300
From: Joe Damato <joe@...a.to>
To: Jakub Kicinski <kuba@...nel.org>
Cc: davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
	pabeni@...hat.com, andrew+netdev@...n.ch, horms@...nel.org,
	ecree.xilinx@...il.com, saeedm@...dia.com, tariqt@...dia.com,
	leon@...nel.org, linux-rdma@...r.kernel.org,
	linux-net-drivers@....com
Subject: Re: [PATCH net-next 3/9] net: ethtool: require drivers to opt into
 the per-RSS ctx RXFH

On Wed, Jun 11, 2025 at 07:59:43AM -0700, Jakub Kicinski wrote:
> RX Flow Hashing supports using different configuration for different
> RSS contexts. Only two drivers seem to support it. Make sure we
> uniformly error out for drivers which don't.
> 
> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
> ---
> CC: saeedm@...dia.com
> CC: tariqt@...dia.com
> CC: leon@...nel.org
> CC: ecree.xilinx@...il.com
> CC: linux-rdma@...r.kernel.org
> CC: linux-net-drivers@....com
> ---
>  include/linux/ethtool.h                              | 3 +++
>  drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 1 +
>  drivers/net/ethernet/sfc/ethtool.c                   | 1 +
>  net/ethtool/ioctl.c                                  | 8 ++++++++
>  4 files changed, 13 insertions(+)

Reviewed-by: Joe Damato <joe@...a.to>