From: Vivien Didelot <vivien.didelot@gmail.com>
To: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Cc: Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
netdev@vger.kernel.org
Subject: Re: [PATCH net-next v2 2/3] net: dsa: mv88e6xxx: add support for bridge flags
Date: Tue, 19 Feb 2019 14:56:27 -0500 [thread overview]
Message-ID: <20190219145627.GB27596@t480s.localdomain> (raw)
In-Reply-To: <20190219191016.u65vvw5y3iydt5zx@shell.armlinux.org.uk>
Hi Russell,
On Tue, 19 Feb 2019 19:10:16 +0000, Russell King - ARM Linux admin <linux@armlinux.org.uk> wrote:
> > True, let's stick with ops->port_egress_flood(ds, port, bool uc, bool mc).
> > I do not think that it is necessary to add support for BR_BCAST_FLOOD yet,
> > we can extend this routine later if we need to.
> >
> > Your dsa_port_bridge_flags() core function can notify the understood
> > features. This will allow us to scope the support of the bridge flags in
> > the core, and preventing the drivers to do that themselves.
>
> So, if we have ops->port_egress_flood, then we tell bridge that
> we support BR_FLOOD | BR_MCAST_FLOOD, irrespective of whether the
> bridge actually supports both?
I would say so yes. If a driver implements port_egress_flood(), this means
its switch device supports both BR_FLOOD | BR_MCAST_FLOOD.
I have one concern though. The documentation of mcast_flood for bridge(8)
says that this flag "controls whether a given port will *be flooded* with
[unknown] multicast traffic". From this I understand allowing this port to
*receive* frames with unknown destination addresses. But with mv88e6xxx, we
program whether the port is allowed to egress a frame that has an unknown
destination address. Otherwise, it will not go out this port.
Am I mistaken? If I understood correctly, is it safe to assume it is the
same thing we are implementing here?
Thanks,
Vivien
next prev parent reply other threads:[~2019-02-19 19:56 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-17 14:24 [PATCH net-next 0/3] net: dsa: mv88e6xxx: fix IPv6 Russell King - ARM Linux admin
2019-02-17 14:25 ` [PATCH net-next 1/3] net: dsa: add support for bridge flags Russell King
2019-02-17 21:37 ` Florian Fainelli
2019-02-17 22:04 ` Russell King - ARM Linux admin
2019-02-17 22:07 ` Florian Fainelli
2019-02-18 0:50 ` Russell King - ARM Linux admin
2019-02-18 11:23 ` Russell King - ARM Linux admin
2019-02-19 15:42 ` Vivien Didelot
2019-02-17 14:25 ` [PATCH net-next 2/3] net: dsa: mv88e6xxx: " Russell King
2019-02-17 21:38 ` Florian Fainelli
2019-02-17 14:25 ` [PATCH net-next 3/3] net: dsa: mv88e6xxx: defautl to multicast and unicast flooding Russell King
2019-02-17 14:27 ` Russell King - ARM Linux admin
2019-02-17 16:34 ` Russell King - ARM Linux admin
2019-02-17 21:45 ` Florian Fainelli
2019-02-17 21:58 ` Russell King - ARM Linux admin
2019-02-17 22:03 ` Florian Fainelli
2019-02-17 22:19 ` Russell King - ARM Linux admin
2019-02-17 22:30 ` Florian Fainelli
2019-02-17 16:31 ` [PATCH net-next v2 0/3] net: dsa: mv88e6xxx: fix IPv6 Russell King - ARM Linux admin
2019-02-17 16:32 ` [PATCH net-next v2 1/3] net: dsa: add support for bridge flags Russell King
2019-02-17 16:32 ` [PATCH net-next v2 2/3] net: dsa: mv88e6xxx: " Russell King
2019-02-19 16:16 ` Vivien Didelot
2019-02-19 16:24 ` Russell King - ARM Linux admin
2019-02-19 17:00 ` Vivien Didelot
2019-02-19 17:14 ` Russell King - ARM Linux admin
2019-02-19 17:38 ` Vivien Didelot
2019-02-19 17:44 ` Florian Fainelli
2019-02-19 18:20 ` Vivien Didelot
2019-02-19 18:08 ` Russell King - ARM Linux admin
2019-02-19 19:04 ` Vivien Didelot
2019-02-19 19:10 ` Russell King - ARM Linux admin
2019-02-19 19:37 ` Florian Fainelli
2019-02-19 19:56 ` Vivien Didelot [this message]
2019-02-19 22:52 ` Russell King - ARM Linux admin
2019-02-19 17:00 ` Russell King - ARM Linux admin
2019-02-19 17:23 ` Vivien Didelot
2019-02-19 17:27 ` Russell King - ARM Linux admin
2019-02-19 23:34 ` Russell King - ARM Linux admin
2019-02-19 23:53 ` Florian Fainelli
2019-02-20 0:07 ` Russell King - ARM Linux admin
2019-02-17 16:32 ` [PATCH net-next v2 3/3] net: dsa: mv88e6xxx: default to multicast and unicast flooding Russell King
2019-02-18 12:53 ` Russell King - ARM Linux admin
2019-02-19 16:05 ` Vivien Didelot
2019-02-19 16:18 ` Russell King - ARM Linux admin
2019-02-18 11:34 ` [PATCH net-next v2 0/3] net: dsa: mv88e6xxx: fix IPv6 Russell King - ARM Linux admin
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