linux-kernel - Re: [PATCH net-next 0/2] idpf: add get/set for Ethtool's header split ringparam

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Message-ID: <20231212101605.766fbbcc@kernel.org>
Date:   Tue, 12 Dec 2023 10:16:05 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Alexander Lobakin <aleksander.lobakin@...el.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Michal Kubiak <michal.kubiak@...el.com>,
        Przemek Kitszel <przemyslaw.kitszel@...el.com>,
        Vladimir Oltean <vladimir.oltean@....com>,
        Andrew Lunn <andrew@...n.ch>,
        Michal Kubecek <mkubecek@...e.cz>,
        Jiri Pirko <jiri@...nulli.us>,
        Paul Greenwalt <paul.greenwalt@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 0/2] idpf: add get/set for Ethtool's header
 split ringparam

On Tue, 12 Dec 2023 15:27:50 +0100 Alexander Lobakin wrote:
> Currently, the header split feature (putting headers in one smaller
> buffer and then the data in a separate bigger one) is always enabled
> in idpf when supported.
> One may want to not have fragmented frames per each packet, for example,
> to avoid XDP frags. To better optimize setups for particular workloads,
> add ability to switch the header split state on and off via Ethtool's
> ringparams, as well as to query the current status.
> There's currently only GET in the Ethtool Netlink interface for now,
> so add SET first. I suspect idpf is not the only one supporting this.

Reviewed-by: Jakub Kicinski <kuba@...nel.org>