netdev - Re: [patch net-next] net: virtio_net: implement exact header length guest feature

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Message-ID: <CAJs=3_BW+8xL9gvUvUpFwRM_tBVvK3HY5aAQsGboN933_br9Vg@mail.gmail.com>
Date:   Tue, 21 Feb 2023 15:39:31 +0200
From:   Alvaro Karsz <alvaro.karsz@...id-run.com>
To:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jiri Pirko <jiri@...nulli.us>
Cc:     Vitaly Mireyno <vmireyno@...vell.com>, netdev@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, davem@...emloft.net
Subject: Re: [patch net-next] net: virtio_net: implement exact header length
 guest feature

Hi,

Our device offers this feature bit as well.
I don't have concrete numbers, but this feature will save our device a
few cycles for every GSO packet.