core/vswitch_controller_p2p.py

   1 # Copyright 2015-2018 Intel Corporation., Tieto
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #   http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 """VSwitch controller for Physical to Physical deployment
  16 """
  17 from core.vswitch_controller import IVswitchController
  18 from conf import settings
  19
  20 class VswitchControllerP2P(IVswitchController):
  21     """VSwitch controller for P2P deployment scenario.
  22
  23     Attributes:
  24         _vswitch_class: The vSwitch class to be used.
  25         _vswitch: The vSwitch object controlled by this controller
  26         _deployment_scenario: A string describing the scenario to set-up in the
  27             constructor.
  28     """
  29     def __init__(self, deployment, vswitch_class, traffic):
  30         """See IVswitchController for general description
  31         """
  32         super().__init__(deployment, vswitch_class, traffic)
  33         self._bridge = settings.getValue('VSWITCH_BRIDGE_NAME')
  34
  35     def setup(self):
  36         """Sets up the switch for p2p.
  37         """
  38         self._logger.debug('Setup using %s', str(self._vswitch_class))
  39
  40         try:
  41             self._vswitch.start()
  42
  43             self._vswitch.add_switch(self._bridge)
  44
  45             (port1, _) = self._vswitch.add_phy_port(self._bridge)
  46             (port2, _) = self._vswitch.add_phy_port(self._bridge)
  47
  48             self._vswitch.add_connection(self._bridge, port1, port2, self._traffic)
  49             self._vswitch.add_connection(self._bridge, port2, port1, self._traffic)
  50
  51         except:
  52             self._vswitch.stop()
  53             raise
  54
  55     def stop(self):
  56         """Tears down the switch created in setup().
  57         """
  58         self._logger.debug('Stop using %s', str(self._vswitch_class))
  59         self._vswitch.stop()
  60
  61     def get_ports_info(self):
  62         """See IVswitchController for description
  63         """
  64         self._logger.debug('get_ports_info  using %s', str(self._vswitch_class))
  65         return self._vswitch.get_ports(self._bridge)
  66
  67     def dump_vswitch_connections(self):
  68         """See IVswitchController for description
  69         """
  70         self._vswitch.dump_connections(self._bridge)