1 files changed, 114 insertions, 0 deletions
diff --git a/vswitches/vswitch.py b/vswitches/vswitch.py
new file mode 100644
index 00000000..713974ae
--- /dev/null
+++ b/vswitches/vswitch.py
@@ -0,0 +1,114 @@
+# Copyright 2015 Intel Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Generic interface VSPERF uses for controlling a vSwitch
+"""
+
+class IVSwitch(object):
+    """Interface class that is implemented by vSwitch-specific classes
+
+    Other methods are called only between start() and stop()
+    """
+    def start(self):
+        """Start the vSwitch
+
+        If vSwitch is split to multiple processes, has kernel modules etc.,
+        this is expected to set them all up in correct sequence
+        """
+        raise NotImplementedError()
+
+    def stop(self):
+        """Stop the vSwitch
+
+        If vSwitch is split to multiple processes, has kernel modules etc.,
+        this is expected to terminate and clean all of them in correct sequence
+        """
+        raise NotImplementedError()
+
+    def add_switch(self, switch_name):
+        """Create a new logical switch with no ports
+
+        :param switch_name: The name of the new logical switch
+        :returns: None
+        """
+        raise NotImplementedError()
+
+    def del_switch(self, switch_name):
+        """Destroy the given logical switch
+
+        :param switch_name: The name of the logical switch to be destroyed
+        :returns: None
+        """
+        raise NotImplementedError()
+
+    def add_phy_port(self, switch_name):
+        """Create a new port to the logical switch that is attached to a
+        physical port
+
+        :param switch_name: The switch where the port is attached to
+        :returns: (port name, OpenFlow port number)
+        """
+        raise NotImplementedError()
+
+    def add_vport(self, switch_name):
+        """Create a new port to the logical switch for VM connections
+
+        :param switch_name: The switch where the port is attached to
+        :returns: (port name, OpenFlow port number)
+        """
+        raise NotImplementedError()
+
+    def get_ports(self, switch_name):
+        """Return a list of tuples describing the ports of the logical switch
+
+        :param switch_name: The switch whose ports to return
+        :returns: [(port name, OpenFlow port number), ...]
+        """
+        raise NotImplementedError()
+
+    def del_port(self, switch_name, port_name):
+        """Delete the port from the logical switch
+
+        The port can be either physical or virtual
+
+        :param switch_name: The switch on which to operate
+        :param port_name: The port to delete
+        """
+        raise NotImplementedError()
+
+    def add_flow(self, switch_name, flow):
+        """Add a flow rule to the logical switch
+
+        :param switch_name: The switch on which to operate
+        :param flow: Flow description as a dictionary
+
+        Example flow dictionary:
+            flow = {
+                'in_port': '1',
+                'idle_timeout': '0',
+                'actions': ['output:3']
+            }
+        """
+        raise NotImplementedError()
+
+    def del_flow(self, switch_name, flow=None):
+        """Delete the flow rule from the logical switch
+
+        :param switch_name: The switch on which to operate
+        :param flow: Flow description as a dictionary
+
+        For flow dictionary description, see add_flow
+        For flow==None, all flows are deleted
+        """
+        raise NotImplementedError()