> In a switch case, they all translate to programming a MDB entry for > a given switch port, right?
No, in fact it is the exact opposite. A normal switchdev MDB says send traffic for a group OUT this port. A host switchdev MDB says send traffic coming IN from a port to the CPU. This is why i think there should be two different switchdev calls, but Vivien wants one call, and to look carefully at the parameters to determine which of the two above to do. Andrew