Hi, Sorry if this has been discussed elsewhere. The relevant discussion is here: https://www.spinics.net/lists/netdev/msg407313.html. But I have few questions in addition to those answered above. We have simple 3-port switch, with two ports(connected via phys to external(front panel)) and one cpu port connected to the cpu via dmas. Our switch doesn't do any tagging protocol. It simply forwards a frame to cpu based on fdb entry. Any frame can only be received/transmitted only by this internal port. Without tagging, we cant really use DSA, and hide the cpu/dsa port. So if we expose this cpu port as a interface with fixed-phy infrastructure does it create any problems? DSA documentation says one cannot open a socket on cpu/dsa port and send/receive traffic. Is it fairly common to use internal/cpu port as a network interface- i.e, creating a socket and send/receive traffic? One problem is how to report back when network errors(like if both front panel ports are disconnected, the expectation is to bring this cpu port down?). We also need to offload all the switch configuration to switch-dev. So the question is using switch-dev without DSA and representing a cpu port as a normal network interface would be ok?
thanks -syed
