Re: [PATCH RFC net-next 0/3] Multi-CPU DSA support

On Sat, 24 Aug 2019 17:56:36 +0200
Andrew Lunn [off-list ref] wrote:

I expect bad things will happen if frames are flooded to multiple CPU
ports. For this to work, the whole switch design needs to support
multiple CPU ports. I doubt this will work on any old switch.

Having a host interface connected to a user port of the switch is a
completely different uses case, and not what this patchset is about.

In the next proposal I shall also add a guard to all DSA drivers, that
if more than one CPU port is set, the driver will not probe.

After that the next patch will try to add multi-CPU support to
mv88e6xxx (while removeing the guard for that driver).

qca8k should also be possible to do, since we used it in such a way in
openwrt. I shall look into that afterwards.

Marek