On 1/27/20 2:40 PM, Andrew Lunn wrote: >> Again, I do not know how other HW is designed, but all the SOC's we are >> working with, does allow us to add a TCAM rule which can redirect these >> frames to the CPU even on a blocked port. > It is not in scope for what you are doing, but i wonder how we > describe this in a generic Linux way? And then how we push it down to > the hardware? > > For the Marvell Switches, it might be possible to do this without the > TCAM. You can add forwarding DB entries marked as Management. It is > unclear if this overrides the blocked state, but it would be a bit odd > if it did not. A MGMT frame does override the blocked state according the the datasheet. And any MAC address can be loaded, not only 01:80:C2:00:00:0x (802.1D) and 01:80:C2:00:00:2x (GARP). Then the ATU is used instead of something specialized. (referring to Andrew's email of 20200126 6:12 PM) (I only checked again 88E6250/88E6220/88E6071/88E6070/88E6020 Functional Specification) Kind regards, Jürgen
