netdev - Re: [PATCH net-next] net: ethtool: Don't check if RSS context exists in case of context 0

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Message-ID: <20250225170128.590baea1@kernel.org>
Date: Tue, 25 Feb 2025 17:01:28 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Gal Pressman <gal@...dia.com>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, Andrew Lunn
 <andrew+netdev@...n.ch>, <netdev@...r.kernel.org>, Andrew Lunn
 <andrew@...n.ch>, Simon Horman <horms@...nel.org>, Joe Damato
 <jdamato@...tly.com>, Tariq Toukan <tariqt@...dia.com>
Subject: Re: [PATCH net-next] net: ethtool: Don't check if RSS context
 exists in case of context 0

On Tue, 25 Feb 2025 09:13:48 +0200 Gal Pressman wrote:
> Context 0 (default context) always exists, there is no need to check
> whether it exists or not when adding a flow steering rule.
> 
> The existing check fails when creating a flow steering rule for context
> 0 as it is not stored in the rss_ctx xarray.

But what is the use case for redirecting to context 0?