From f881a0e4ee995a2e2122e0e048cc8b7ccc88d6a0 Mon Sep 17 00:00:00 2001
From: Huan Xie <huan.xie@citrix.com>
Date: Tue, 27 Sep 2016 05:57:06 +0000
Subject: [PATCH] XenAPI: Enable linux bridge in Dom0 for neturon

When using neutron network under xenserver, we must enable linux bridge
in Dom0 as neutron will use linux bridge qbr in compute node for
security group. But by default XenServer use openvswitch and disabled
linux bridge. This patch is to remove this restriction.

Change-Id: I0e8124ff2323810fdc46c717a750ce7e8f4aa0c6
---
 lib/nova_plugins/hypervisor-xenserver | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/nova_plugins/hypervisor-xenserver b/lib/nova_plugins/hypervisor-xenserver
index e5d25da3a3..a63e72e764 100644
--- a/lib/nova_plugins/hypervisor-xenserver
+++ b/lib/nova_plugins/hypervisor-xenserver
@@ -90,6 +90,10 @@ CRONTAB
         echo "install_conntrack_tools"
     } | $ssh_dom0
 
+    if is_service_enabled neutron; then
+        # Remove restriction on linux bridge in Dom0 when neutron is enabled
+        $ssh_dom0 "rm -f /etc/modprobe.d/blacklist-bridge*"
+    fi
 }
 
 # install_nova_hypervisor() - Install external components