bitkeeper revision 1.1713.3.10 (42b306faXfFxqDZahYvvQJPQeaDm1A)

netif.py:
  Add mtu config option for network interfaces.
Signed-off-by: Mike Wray <mike.wray@hp.com>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

tools/python/xen/xend/server/netif.py

@@ -87,6 +87,7 @@ class NetDev(Dev):
         self.bridge = None
         self.script = None
         self.ipaddr = None
+        self.mtu = None
         self.vifname = None
         self.configure(self.config, recreate=recreate)
 
@@ -132,6 +133,15 @@ class NetDev(Dev):
             val = None
         return val
 
+    def _get_config_mtu(self, config):
+        mtu = sxp.child_value(config, 'mtu')
+        if not mtu: return None
+        try:
+            mtu = int(mtu)
+        except:
+            raise XendError("invalid mtu: %s" & mtu)
+        return mtu
+
     def configure(self, config, change=False, recreate=False):
         if change:
             return self.reconfigure(config)
@@ -156,6 +166,7 @@ class NetDev(Dev):
         self.bridge = sxp.child_value(config, 'bridge')
         self.script = sxp.child_value(config, 'script')
         self.ipaddr = self._get_config_ipaddr(config) or []
+        self.mtu = self._get_config_mtu(config)
         self._config_credit_limit(config)
         
         try:
@@ -187,6 +198,7 @@ class NetDev(Dev):
         bridge = sxp.child_value(config, 'bridge')
         script = sxp.child_value(config, 'script')
         ipaddr = self._get_config_ipaddr(config)
+        mtu = self._get_config_mtu(config)
         
         xd = get_component('xen.xend.XendDomain')
         backendDomain = xd.domain_lookup_by_name(sxp.child_value(config, 'backend', '0')).id
@@ -203,6 +215,8 @@ class NetDev(Dev):
             changes['script'] = script
         if (ipaddr is not None) and (ipaddr != self.ipaddr):
             changes['ipaddr'] = ipaddr
+        if (mtu is not None) and (mtu != self.mtu):
+            changes['mtu'] = mtu
 
         if changes:
             self.vifctl("down")