Catalli's threaded switch

[sliver-openvswitch.git] / xenserver / opt_xensource_libexec_InterfaceReconfigureVswitch.py

diff --git a/xenserver/opt_xensource_libexec_InterfaceReconfigureVswitch.py b/xenserver/opt_xensource_libexec_InterfaceReconfigureVswitch.py
index b737555..bc311f8 100644 (file)
--- a/xenserver/opt_xensource_libexec_InterfaceReconfigureVswitch.py
+++ b/xenserver/opt_xensource_libexec_InterfaceReconfigureVswitch.py
@@ -12,6 +12,7 @@
 # GNU Lesser General Public License for more details.
 #
 from InterfaceReconfigure import *
+import os
 import re
 
 #
@@ -344,9 +345,9 @@ def set_br_external_ids(pif):
         xs_network_uuids += [nwrec['uuid']]
 
     vsctl_argv = []
-    vsctl_argv += ['# configure network-uuids']
+    vsctl_argv += ['# configure xs-network-uuids']
     vsctl_argv += ['--', 'br-set-external-id', pif_bridge_name(pif),
-            'network-uuids', ';'.join(xs_network_uuids)]
+            'xs-network-uuids', ';'.join(xs_network_uuids)]
 
     return vsctl_argv
 
@@ -367,6 +368,13 @@ class DatapathVswitch(Datapath):
 
     @classmethod
     def rewrite(cls):
+        if not os.path.exists("/var/run/openvswitch/db.sock"):
+            # ovsdb-server is not running, so we can't update the database.
+            # Probably we are being called as part of system shutdown.  Just
+            # skip the update, since the external-ids will be updated on the
+            # next boot anyhow.
+            return
+
         vsctl_argv = []
         for pif in db().get_all_pifs():
             pifrec = db().get_pif_record(pif)
@@ -423,17 +431,25 @@ class DatapathVswitch(Datapath):
     def bring_down_existing(self):
         # interface-reconfigure is never explicitly called to down a
         # bond master.  However, when we are called to up a slave it
-        # is implicit that we are destroying the master.
+        # is implicit that we are destroying the master.  Conversely,
+        # when we are called to up a bond is is implicit that we are
+        # taking down the slaves.
         #
-        # This is (only) important in the case where the bond master
-        # uses DHCP.  We need to kill the dhclient process, otherwise
-        # bringing the bond master back up later will fail because
-        # ifup will refuse to start a duplicate dhclient.
+        # This is (only) important in the case where the device being
+        # implicitly taken down uses DHCP.  We need to kill the
+        # dhclient process, otherwise performing the inverse operation
+        # later later will fail because ifup will refuse to start a
+        # duplicate dhclient.
         bond_masters = pif_get_bond_masters(self._pif)
         for master in bond_masters:
             log("action_up: bring down bond master %s" % (pif_netdev_name(master)))
             run_command(["/sbin/ifdown", pif_bridge_name(master)])
 
+        bond_slaves = pif_get_bond_slaves(self._pif)
+        for slave in bond_slaves:
+            log("action_up: bring down bond slave %s" % (pif_netdev_name(slave)))
+            run_command(["/sbin/ifdown", pif_bridge_name(slave)])
+
     def configure(self):
         # Bring up physical devices. ovs-vswitchd initially enables or
         # disables bond slaves based on whether carrier is detected