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

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Date:   Mon, 13 Jan 2020 12:30:06 +0300
From:   Alexander Lobakin <alobakin@...nk.ru>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Edward Cree <ecree@...arflare.com>,
        Andrew Lunn <andrew@...n.ch>,
        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 <netdev@...r.kernel.org>,
        lkml <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

Vladimir Oltean wrote 31.12.2019 18:32:
> Hi Alexander,

Hi,

> On Mon, 30 Dec 2019 at 16:31, Alexander Lobakin <alobakin@...nk.ru> 
> wrote:
>> 
>> 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?
>> - Which tagger protocols really need it and which don't?
>> - Does this series bring any performance improvements on the
>>   affected systems?
> 
> If these are these questions for maintainers, developers, users etc,
> then what has determined you to make these changes?

The main reason was obviously pretty good results on a particular
hardware on which I developed this (and other) series and a general
opinion that GRO improves overall performance on most systems.
DSA is a special case though.

> Thanks,
> -Vladimir

Regards,
ᚷ ᛖ ᚢ ᚦ ᚠ ᚱ