Re: [PATCH net-next 5/8] net: dsa: lan9645x: add bridge support

[Jens Emil Schulz Ostergaard]

On Tue, 2026-03-03 at 16:20 +0200, Vladimir Oltean wrote:
> 
> On Tue, Mar 03, 2026 at 01:22:31PM +0100, Jens Emil Schulz Østergaard wrote:
> > We support a single bridge device.
> 
> Why? I keep seeing this from Microchip engineers. Having two
> VLAN-unaware bridges on different sets of ports is a perfectly valid use
> case. On Ocelot I took the driver from a state where it had an identical
> implementation to yours and I made it handle multiple bridges. I don't
> see where's the problem.

The main reason is that is what we support in other drivers such as sparx5,
lan969x and lan966x. I saw your solution for Ocelot, but I could not think
of the use case, where you would not just use vlans on a single bridge to
isolate forwarding domains. But I may be missing something. The same solution
would work here, but the bridges can not be vlan-aware.

Thanks,
Emil