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

On Sat, 24 Aug 2019 13:04:04 -0700
Florian Fainelli [off-list ref] wrote:

Now, the 4.9 kernel behavior actually works just fine because eth1 is
not a special interface, so no tagging is expected, and "wifi", although
it supports DSA tagging, represents another side of the CPU/host network
stack, so you never have to inject frames into the switch, because you
can use eth1 to do that and let MAC learning do its job to forward to
the correct port of the switch.

Hi Florian,

Sorry, I am having trouble understanding what you mean in the
paragraph I quoted above (and paragraphs afterwards).

eth0 and eth1 are interfaces created by an ethernet driver.
wlan0 is an interface created by wireless driver.
wifi is a slave interface created by DSA for port 5 on the switch.
eth1 is DSA slave or a DSA master connected to port 5?

How does DSA handle two interfaces with same reg property?

Marek