Add vxlan tests using xconnect

[csit.git] / resources / libraries / python / InterfaceUtil.py

diff --git a/resources/libraries/python/InterfaceUtil.py b/resources/libraries/python/InterfaceUtil.py
index 14473ee..be12650 100644 (file)
--- a/resources/libraries/python/InterfaceUtil.py
+++ b/resources/libraries/python/InterfaceUtil.py
@@ -30,10 +30,10 @@ class InterfaceUtil(object):
         Function can be used for DUTs as well as for TGs.
 
         :param node: node where the interface is
-        :param interface: interface name
+        :param interface: interface name or sw_if_index
         :param state: one of 'up' or 'down'
         :type node: dict
-        :type interface: str
+        :type interface: str or int
         :type state: str
         :return: nothing
         """
@@ -45,7 +45,11 @@ class InterfaceUtil(object):
             else:
                 raise ValueError('Unexpected interface state: {}'.format(state))
 
-            sw_if_index = Topology.get_interface_sw_index(node, interface)
+            if isinstance(interface, basestring):
+                sw_if_index = Topology.get_interface_sw_index(node, interface)
+            else:
+                sw_if_index = interface
+
             VatExecutor.cmd_from_template(node, 'set_if_state.vat',
                                           sw_if_index=sw_if_index, state=state)
 
@@ -53,7 +57,45 @@ class InterfaceUtil(object):
             cmd = 'ip link set {} {}'.format(interface, state)
             exec_cmd_no_error(node, cmd, sudo=True)
         else:
-            raise Exception('Unknown NodeType: "{}"'.format(node['type']))
+            raise Exception('Node {} has unknown NodeType: "{}"'.
+                            format(node['host'], node['type']))
+
+    @staticmethod
+    def set_interface_ethernet_mtu(node, interface, mtu):
+        """Set Ethernet MTU for specified interface.
+
+        Function can be used only for TGs.
+
+        :param node: node where the interface is
+        :param interface: interface name
+        :param mtu: MTU to set
+        :type node: dict
+        :type interface: str
+        :type mtu: int
+        :return: nothing
+        """
+        if node['type'] == NodeType.DUT:
+            ValueError('Node {}: Setting Ethernet MTU for interface '
+                       'on DUT nodes not supported', node['host'])
+        elif node['type'] == NodeType.TG:
+            cmd = 'ip link set {} mtu {}'.format(interface, mtu)
+            exec_cmd_no_error(node, cmd, sudo=True)
+        else:
+            raise ValueError('Node {} has unknown NodeType: "{}"'.
+                             format(node['host'], node['type']))
+
+    @staticmethod
+    def set_default_ethernet_mtu_on_all_interfaces_on_node(node):
+        """Set default Ethernet MTU on all interfaces on node.
+
+        Function can be used only for TGs.
+
+        :param node: node where to set default MTU
+        :type node: dict
+        :return: nothing
+        """
+        for ifc in node['interfaces'].values():
+            InterfaceUtil.set_interface_ethernet_mtu(node, ifc['name'], 1500)
 
     @staticmethod
     def vpp_node_interfaces_ready_wait(node, timeout=10):