[ovs-git] [openvswitch/ovs] f2f78d: rstp: add ability to receive VLAN-tagged BPDUs

[Ben Pfaff]

  Branch: refs/heads/master
  Home:   https://github.com/openvswitch/ovs
  Commit: f2f78d5c8c8cb5294dbb2c90c7e5e3b15620f46a
      https://github.com/openvswitch/ovs/commit/f2f78d5c8c8cb5294dbb2c90c7e5e3b15620f46a
  Author: Matthias May <matthias.may at neratec.com>
  Date:   2019-02-22 (Fri, 22 Feb 2019)

  Changed paths:
    M ofproto/ofproto-dpif-xlate.c

  Log Message:
  -----------
  rstp: add ability to receive VLAN-tagged BPDUs

There are switches which allow to transmit their BPDUs VLAN-tagged.
With this change OVS is able to receive VLAN-tagged BPDUs, but still
transmits its own BPDUs untagged.
This was tested against Westermo RFI-207-F4G-T3G.

Signed-off-by: Matthias May <matthias.may at neratec.com>
Signed-off-by: Ben Pfaff <blp at ovn.org>