netdev - Re: [PATCH RFC net-next 00/20] net: dsa: add GRO support

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Message-ID: <20191230171216.GC13569@lunn.ch>
Date:   Mon, 30 Dec 2019 18:12:16 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Alexander Lobakin <alobakin@...nk.ru>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Edward Cree <ecree@...arflare.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Sean Wang <sean.wang@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Jiri Pirko <jiri@...lanox.com>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Taehee Yoo <ap420073@...il.com>,
        Stephen Hemminger <stephen@...workplumber.org>,
        Stanislav Fomichev <sdf@...gle.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Song Liu <songliubraving@...com>,
        Matteo Croce <mcroce@...hat.com>,
        Jakub Sitnicki <jakub@...udflare.com>,
        Paul Blakey <paulb@...lanox.com>,
        Yoshiki Komachi <komachi.yoshiki@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH RFC net-next 00/20] net: dsa: add GRO support

> I mark this as RFC, and there are the key questions for maintainers,
> developers, users etc.:
> - Do we need GRO support for DSA at all?

> - Does this series bring any performance improvements on the
>   affected systems?

Hi Alexander

I think these are the two most important questions. Did you do any
performance testing for the hardware you have?

I personally don't have any of the switches you have made
modifications to, so i cannot test these patches. I might be able to
add GRO to DSA and EDSA, where i can do some performance testing.

    Andrew