This implementation is to give support on neutron security group with
XenServer as compute driver. When using neutron+openvswitch, the ovs
agent on compute node cannot run correctly due to lack of qbr linux
bridge on compute node. This change will add qbr linux bridge when
xenserver as hypervisor
Xenserver driver now doesn't have linux bridge, the connection is:
compute node: vm-vif -> br-int -> br-eth
network node: br-eth -> br-int -> br-ex
With this implemented, linux bridge(qbr) will be added in compute
node. Thus the security group rules can be applied on qbr bridge.
The connection will look like:
compute node: vm-vif -> qbr(linux bridge) -> br-int -> br-eth
network node: br-eth -> br-int -> br-ex
Closes-Bug: #1526138
Implements: blueprint support-neutron-security-group
DocImpact: /etc/modprobe.d/blacklist-bridge file in dom0 should be
deleted since it prevent loading linux bridge module in dom0
Depends-On: I377f8ad51e1d2725c3e0153e64322055fcce7b54
Change-Id: Id9b39aa86558a9f7099caedabd2d517bf8ad3d68
Huan Xie
bebc0a4b2e