From: Vladimir Oltean <olteanv@gmail.com>
To: Alexander Lobakin <alobakin@dlink.ru>
Cc: Andrew Lunn <andrew@lunn.ch>, Song Liu <songliubraving@fb.com>,
Jakub Kicinski <jakub.kicinski@netronome.com>,
Yoshiki Komachi <komachi.yoshiki@gmail.com>,
lkml <linux-kernel@vger.kernel.org>,
Eric Dumazet <edumazet@google.com>,
Stanislav Fomichev <sdf@google.com>,
Matteo Croce <mcroce@redhat.com>,
Edward Cree <ecree@solarflare.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Jakub Sitnicki <jakub@cloudflare.com>,
Daniel Borkmann <daniel@iogearbox.net>,
Paolo Abeni <pabeni@redhat.com>,
Vivien Didelot <vivien.didelot@gmail.com>,
Hauke Mehrtens <hauke@hauke-m.de>,
Sean Wang <sean.wang@mediatek.com>,
Jiri Pirko <jiri@mellanox.com>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
"moderated list:ARM/Mediatek SoC support"
<linux-arm-kernel@lists.infradead.org>,
netdev <netdev@vger.kernel.org>, Paul Blakey <paulb@mellanox.com>,
Stephen Hemminger <stephen@networkplumber.org>,
"David S. Miller" <davem@davemloft.net>,
Taehee Yoo <ap420073@gmail.com>
Subject: Re: [PATCH RFC net-next 05/19] net: dsa: tag_ar9331: add GRO callbacks
Date: Mon, 13 Jan 2020 12:28:09 +0200 [thread overview]
Message-ID: <CA+h21hqZoLrU7nL3Vo0KcmFnOxNxQPwoOVSEd6styyjK7XO+5w@mail.gmail.com> (raw)
In-Reply-To: <0002a7388dfd5fb70db4b43a6c521c52@dlink.ru>
On Mon, 13 Jan 2020 at 11:46, Alexander Lobakin <alobakin@dlink.ru> wrote:
>
> Vladimir Oltean wrote 13.01.2020 12:42:
> > Hi Alexander,
> >
> > On Mon, 13 Jan 2020 at 11:22, Alexander Lobakin <alobakin@dlink.ru>
> > wrote:
> >>
> >> CPU ports can't be bridged anyway
> >>
> >> Regards,
> >> ᚷ ᛖ ᚢ ᚦ ᚠ ᚱ
> >
> > The fact that CPU ports can't be bridged is already not ideal.
> > One can have a DSA switch with cascaded switches on each port, so it
> > acts like N DSA masters (not as DSA links, since the taggers are
> > incompatible), with each switch forming its own tree. It is desirable
> > that the ports of the DSA switch on top are bridged, so that
> > forwarding between cascaded switches does not pass through the CPU.
>
> Oh, I see. But currently DSA infra forbids the adding DSA masters to
> bridges IIRC. Can't name it good or bad decision, but was introduced
> to prevent accidental packet flow breaking on DSA setups.
>
I just wanted to point out that some people are going to be looking at
ways by which the ETH_P_XDSA handler can be made to play nice with the
master's rx_handler, and that it would be nice to at least not make
the limitation worse than it is by converting everything to
rx_handlers (which "currently" can't be stacked, from the comments in
netdevice.h).
> > -Vladimir
>
> Regards,
> ᚷ ᛖ ᚢ ᚦ ᚠ ᚱ
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next prev parent reply other threads:[~2020-01-13 10:28 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-30 14:30 [PATCH RFC net-next 00/20] net: dsa: add GRO support Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 01/19] net: dsa: make .flow_dissect() callback returning void Alexander Lobakin
2019-12-30 18:11 ` Florian Fainelli
2019-12-30 14:30 ` [PATCH RFC net-next 02/19] net: dsa: add GRO support infrastructure Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 03/19] net: dsa: tag_ar9331: add .flow_dissect() callback Alexander Lobakin
2019-12-30 18:22 ` Florian Fainelli
2019-12-30 14:30 ` [PATCH RFC net-next 04/19] net: dsa: tag_ar9331: split out common tag accessors Alexander Lobakin
2019-12-30 17:18 ` Andrew Lunn
2019-12-30 14:30 ` [PATCH RFC net-next 05/19] net: dsa: tag_ar9331: add GRO callbacks Alexander Lobakin
2019-12-30 18:20 ` Florian Fainelli
2019-12-30 20:36 ` Andrew Lunn
2020-01-13 9:21 ` Alexander Lobakin
2020-01-13 9:42 ` Vladimir Oltean
2020-01-13 9:46 ` Alexander Lobakin
2020-01-13 10:28 ` Vladimir Oltean [this message]
2020-01-14 21:56 ` Florian Fainelli
2020-01-15 7:38 ` Alexander Lobakin
2020-01-15 11:29 ` Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 06/19] net: dsa: tag_gswip: fix typo in tag name Alexander Lobakin
2019-12-30 17:22 ` Andrew Lunn
2020-01-14 21:57 ` Florian Fainelli
2020-01-15 7:24 ` Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 07/19] net: dsa: tag_gswip: switch to bitfield helpers Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 08/19] net: dsa: tag_gswip: add .flow_dissect() callback Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 09/19] net: dsa: tag_gswip: split out common tag accessors Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 10/19] net: dsa: tag_gswip: add GRO callbacks Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 11/19] net: dsa: tag_lan9303: add .flow_dissect() callback Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 12/19] net: dsa: tag_lan9303: split out common tag accessors Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 13/19] net: dsa: tag_lan9303: add GRO callbacks Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 14/19] net: dsa: tag_mtk: split out common tag accessors Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 15/19] net: dsa: tag_mtk: add GRO callbacks Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 16/19] net: dsa: tag_qca: fix doubled Tx statistics Alexander Lobakin
2019-12-30 17:23 ` Andrew Lunn
2020-01-14 21:57 ` Florian Fainelli
2019-12-30 14:30 ` [PATCH RFC net-next 17/19] net: dsa: tag_qca: switch to bitfield helpers Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 18/19] net: dsa: tag_qca: split out common tag accessors Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 19/19] net: dsa: tag_qca: add GRO callbacks Alexander Lobakin
2019-12-30 14:30 ` [PATCH RFC net-next 20/20] net: core: add (unlikely) DSA support in napi_gro_frags() Alexander Lobakin
2019-12-30 17:12 ` [PATCH RFC net-next 00/20] net: dsa: add GRO support Andrew Lunn
2020-01-13 9:25 ` Alexander Lobakin
2019-12-31 15:32 ` Vladimir Oltean
2020-01-13 9:30 ` Alexander Lobakin
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