netdev - Re: [PATCH iwl-next v4 5/5] iavf: add RSS support for GTP protocol via ethtool

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Message-ID: <20250912090359.GY30363@horms.kernel.org>
Date: Fri, 12 Sep 2025 10:03:59 +0100
From: Simon Horman <horms@...nel.org>
To: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
Cc: intel-wired-lan@...ts.osuosl.org, anthony.l.nguyen@...el.com,
	netdev@...r.kernel.org, mschmidt@...hat.com,
	Jedrzej Jagielski <jedrzej.jagielski@...el.com>
Subject: Re: [PATCH iwl-next v4 5/5] iavf: add RSS support for GTP protocol
 via ethtool

On Fri, Aug 29, 2025 at 10:18:08AM +0000, Aleksandr Loktionov wrote:
> Extend the iavf driver to support Receive Side Scaling (RSS)
> configuration for GTP (GPRS Tunneling Protocol) flows using ethtool.
> 
> The implementation introduces new RSS flow segment headers and hash field
> definitions for various GTP encapsulations, including:
> 
>   - GTPC
>   - GTPU (IP, Extension Header, Uplink, Downlink)
>   - TEID-based hashing
> 
> The ethtool interface is updated to parse and apply these new flow types
> and hash fields, enabling fine-grained traffic distribution for GTP-based
> mobile workloads.
> 
> This enhancement improves performance and scalability for virtualized
> network functions (VNFs) and user plane functions (UPFs) in 5G and LTE
> deployments.
> 
> Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
> Reviewed-by: Jedrzej Jagielski <jedrzej.jagielski@...el.com>

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