On Mon, Nov 07, 2022 at 01:27:36PM +0200, Vladimir Oltean wrote: > Hi Jakub, > (...) There is also another problem having to do with future extensibility of METADATA_HW_PORT_MUX for DSA. I don't know how much of this is going to be applicable for qca8k, but DSA tags might also carry such information as trap reason (RX) or injection type (into forwarding plane or control packet; the latter bypasses port STP state) and the FID to which the packet should be classified by the hardware (TX). If we're going to design a mechanism which only preallocates metadata dst's for ports, it's going to be difficult to make that work for more information later on.
