netdev - Re: [PATCH net-next 6/8] ethtool: rss: support creating contexts via Netlink

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Message-ID: <70db339e-a60b-430c-bc8e-f226decb44f7@nvidia.com>
Date: Sun, 20 Jul 2025 14:42:36 +0300
From: Gal Pressman <gal@...dia.com>
To: Jakub Kicinski <kuba@...nel.org>, davem@...emloft.net
Cc: netdev@...r.kernel.org, edumazet@...gle.com, pabeni@...hat.com,
 andrew+netdev@...n.ch, horms@...nel.org, andrew@...n.ch,
 donald.hunter@...il.com, shuah@...nel.org, kory.maincent@...tlin.com,
 ecree.xilinx@...il.com
Subject: Re: [PATCH net-next 6/8] ethtool: rss: support creating contexts via
 Netlink

On 18/07/2025 2:43, Jakub Kicinski wrote:
> +Kernel response contents:
> +
> +=====================================  ======  ==============================
> +  ``ETHTOOL_A_RSS_HEADER``             nested  request header
> +  ``ETHTOOL_A_RSS_CONTEXT``            u32     context number
> +=====================================  ======  ==============================
> +
> +Create an additional RSS context, if ``ETHTOOL_A_RSS_CONTEXT`` is not
> +specified kernel will allocate one automatically.

We don't support choosing the context id from userspace in ioctl flow, I
think it should be stated somewhere (at the least, in the commit message?).