Re: [PATCH RFC net-next 1/3] net: dsa: allow for multiple CPU ports

[DENG Qingfang]

On Mon, Apr 12, 2021 at 06:41:58AM +0200, Ansuel Smith wrote:
> > So, drivers will read the name of every port and decide which CPU port
> > does it use?
> >
> 
> Yes, this seems to be an acceptable path to follow. The driver can
> provide a preferred CPU port or just tell DSA that every cpu is equal
> and assign them in a round-robin.
> 

So we somehow configured default CPU port in dts (by port name). In
my opinion we can just add a default CPU property in dts to specify
it (like Frank Wunderlich did earlier), and fall back to round-robin
if the property is not present, while still allow users to change it
in userspace.