release-3.3.3

dpif: pass portnames of ofproto to kernel datapath

When an RDMA capable device is linked to OVS bridge, and if we want to
run RoCE over the device, the internal port of the OVS bridge should be
set as the upper device of the RDMA capable device, so that kernel will
add RDMA GIDs for the internal port and we can use them for RoCE
communication.

The userspace ovs-vswitchd will pass the portnames of a ofproto to the
kernel openvswitch module via netlink when creating a vport, and kernel
side will parse the portnames and setup adjacent devices for the vport's
netdev properly.