From: Vladimir Oltean <olteanv@gmail.com>
To: Ido Schimmel <idosch@idosch.org>
Cc: Jakub Kicinski <kuba@kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
bridge@lists.linux-foundation.org,
Roopa Prabhu <roopa@nvidia.com>,
Nikolay Aleksandrov <nikolay@nvidia.com>,
Jiri Pirko <jiri@resnulli.us>,
Claudiu Manoil <claudiu.manoil@nxp.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
UNGLinuxDriver@microchip.com, Vadym Kochan <vkochan@marvell.com>,
Taras Chornyi <tchornyi@marvell.com>,
Grygorii Strashko <grygorii.strashko@ti.com>,
Ioana Ciornei <ioana.ciornei@nxp.com>,
Ivan Vecera <ivecera@redhat.com>,
linux-omap@vger.kernel.org
Subject: Re: [PATCH v2 net-next 04/11] net: bridge: offload initial and final port flags through switchdev
Date: Thu, 11 Feb 2021 01:23:52 +0200 [thread overview]
Message-ID: <20210210232352.m7nqzvs2g4i74rx4@skbuf> (raw)
In-Reply-To: <20210210105949.GB287766@shredder.lan>
On Wed, Feb 10, 2021 at 12:59:49PM +0200, Ido Schimmel wrote:
> > > The reverse, during unlinking, would be to refuse unlinking if the upper
> > > has uppers of its own. netdev_upper_dev_unlink() needs to learn to
> > > return an error and callers such as team/bond need to learn to handle
> > > it, but it seems patchable.
> >
> > Again, this was treated prior to my deletion in this series and not by
> > erroring out, I just really didn't think it through.
> >
> > So you're saying that if we impose that all switchdev drivers restrict
> > the house of cards to be constructed from the bottom up, and destructed
> > from the top down, then the notification of bridge port flags can stay
> > in the bridge layer?
>
> I actually don't think it's a good idea to have this in the bridge in
> any case. I understand that it makes sense for some devices where
> learning, flooding, etc are port attributes, but in other devices these
> can be {port,vlan} attributes and then you need to take care of them
> when a vlan is added / deleted and not only when a port is removed from
> the bridge. So for such devices this really won't save anything. I would
> thus leave it to the lower levels to decide.
Just for my understanding, how are per-{port,vlan} attributes such as
learning and flooding managed by the Linux bridge? How can I disable
flooding only in a certain VLAN?
next prev parent reply other threads:[~2021-02-10 23:25 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-09 15:19 [PATCH v2 net-next 00/11] Cleanup in brport flags switchdev offload for DSA Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 01/11] net: switchdev: propagate extack to port attributes Vladimir Oltean
2021-02-09 18:00 ` Ido Schimmel
2021-02-09 15:19 ` [PATCH v2 net-next 02/11] net: bridge: offload all port flags at once in br_setport Vladimir Oltean
2021-02-09 18:27 ` Vladimir Oltean
2021-02-09 18:36 ` Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 03/11] net: bridge: don't print in br_switchdev_set_port_flag Vladimir Oltean
2021-02-09 17:36 ` Vladimir Oltean
2021-02-09 18:26 ` Ido Schimmel
2021-02-09 15:19 ` [PATCH v2 net-next 04/11] net: bridge: offload initial and final port flags through switchdev Vladimir Oltean
2021-02-09 18:51 ` Ido Schimmel
2021-02-09 20:20 ` Vladimir Oltean
2021-02-09 22:01 ` Ido Schimmel
2021-02-09 22:51 ` Vladimir Oltean
2021-02-10 10:59 ` Ido Schimmel
2021-02-10 23:23 ` Vladimir Oltean [this message]
2021-02-11 7:44 ` Ido Schimmel
2021-02-11 9:35 ` Vladimir Oltean
2021-02-11 22:20 ` Ido Schimmel
2021-02-09 15:19 ` [PATCH v2 net-next 05/11] net: dsa: stop setting initial and final brport flags Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 06/11] net: squash switchdev attributes PRE_BRIDGE_FLAGS and BRIDGE_FLAGS Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 07/11] net: dsa: kill .port_egress_floods overengineering Vladimir Oltean
2021-02-09 20:37 ` Vladimir Oltean
2021-02-09 21:29 ` Florian Fainelli
2021-02-09 15:19 ` [PATCH v2 net-next 08/11] net: bridge: put SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS on the blocking call chain Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 09/11] net: mscc: ocelot: use separate flooding PGID for broadcast Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 10/11] net: mscc: ocelot: offload bridge port flags to device Vladimir Oltean
2021-02-09 15:19 ` [PATCH v2 net-next 11/11] net: dsa: sja1105: " Vladimir Oltean
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