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

[DENG Qingfang]

On Sun, Apr 11, 2021 at 09:50:17PM +0300, Vladimir Oltean wrote:
> 
> So I'd be tempted to say 'tough luck' if all your ports are not up, and
> the ones that are are assigned statically to the same CPU port. It's a
> compromise between flexibility and simplicity, and I would go for
> simplicity here. That's the most you can achieve with static assignment,
> just put the CPU ports in a LAG if you want better dynamic load balancing
> (for details read on below).
> 

Many switches such as mv88e6xxx only support MAC DA/SA load balancing,
which make it not ideal in router application (Router WAN <--> ISP BRAS
traffic will always have the same DA/SA and thus use only one port).