Re: [PATCH v3 net-next 10/11] net: mscc: ocelot: offload bridge port flags to device

Florian Fainelli
2021-02-11T04:22:05Z

On 2/10/2021 1:14 AM, Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@nxp.com>
>
> We should not be unconditionally enabling address learning, since doing
> that is actively detrimential when a port is standalone and not offloading
> a bridge. Namely, if a port in the switch is standalone and others are
> offloading the bridge, then we could enter a situation where we learn an
> address towards the standalone port, but the bridged ports could not
> forward the packet there, because the CPU is the only path between the
> standalone and the bridged ports. The solution of course is to not
> enable address learning unless the bridge asks for it.
>
> We need to set up the initial port flags for no learning and flooding
> everything, then the bridge takes over. The flood configuration was
> already configured ok in ocelot_init, we just need to disable learning
> in ocelot_init_port.
>
> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
--
Florian