Add testpmd as vswitch class

The purpose of using testpmd instead of OVS is to get the baseline
of the DUT when performing hardware offloading operations.
There are supported different checksum calculation
and txq flags settings.

Change-Id: I93c9b45dcb31eaa1f610b7e061f3dd5936b0e6ec
JIRA: VSPERF-193
Signed-off-by: Robert Wojciechowicz <robertx.wojciechowicz@intel.com>
Reviewed-by: Dino Simeon Madarang <dino.simeonx.madarang@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Brian Castelli <brian.castelli@spirent.com>

3 files changed, 116 insertions, 2 deletions

diff --git a/core/component_factory.py b/core/component_factory.py
index 21cdd61d..af237e50 100644
--- a/core/component_factory.py
+++ b/core/component_factory.py
@@ -20,6 +20,7 @@ from core.vswitch_controller_p2p import VswitchControllerP2P
 from core.vswitch_controller_pvp import VswitchControllerPVP
 from core.vswitch_controller_pvvp import VswitchControllerPVVP
 from core.vnf_controller import VnfController
+from core.pktfwd_controller import PktFwdController
 from tools.load_gen.stress.stress import Stress
 from tools.load_gen.stress_ng.stress_ng import StressNg
 from tools.load_gen.dummy.dummy import DummyLoadGen
@@ -108,4 +109,13 @@ def create_loadgen(loadgen_type, loadgen_cfg):
     elif loadgen_type.find("stress") >= 0:
         return Stress(loadgen_cfg)
 
+def create_pktfwd(pktfwd_class):
+    """Return a new packet forwarder controller
 
+    The returned controller is configured with the given
+    packet forwarder class.
+
+    :param pktfwd_class: Reference to packet forwarder class to be used.
+    :return: packet forwarder controller
+    """
+    return PktFwdController(pktfwd_class)
diff --git a/core/loader/loader.py b/core/loader/loader.py
index 39b50f09..0d9c83a6 100755
--- a/core/loader/loader.py
+++ b/core/loader/loader.py
@@ -21,6 +21,7 @@ from tools.pkt_gen.trafficgen import ITrafficGenerator
 from tools.collectors.collector import ICollector
 from vswitches.vswitch import IVSwitch
 from vnfs.vnf.vnf import IVnf
+from tools.pkt_fwd.pkt_fwd import IPktFwd
 
 class Loader(object):
     """Loader class - main object context holder.
@@ -57,6 +58,11 @@ class Loader(object):
             settings.getValue('VNF'),
             IVnf)
 
+        self._pktfwd_loader = LoaderServant(
+            settings.getValue('PKTFWD_DIR'),
+            settings.getValue('PKTFWD'),
+            IPktFwd)
+
     def get_trafficgen(self):
         """Returns a new instance configured traffic generator.
 
@@ -109,7 +115,7 @@ class Loader(object):
 
         :return: Dictionary of collectors.
             - key: name of the class which implements ICollector,
-            - value: Type of traffic generator which implements ICollector.
+            - value: Type of collector which implements ICollector.
         """
         return self._metrics_loader.get_classes()
 
@@ -140,7 +146,7 @@ class Loader(object):
 
         :return: Dictionary of vswitches.
             - key: name of the class which implements IVSwitch,
-            - value: Type of traffic generator which implements IVSwitch.
+            - value: Type of vswitch which implements IVSwitch.
         """
         return self._vswitch_loader.get_classes()
 
@@ -182,3 +188,33 @@ class Loader(object):
         """
         return self._vnf_loader.get_classes_printable()
 
+    def get_pktfwd(self):
+        """Returns instance of currently configured packet forwarder implementation.
+
+        :return: IPktFwd implementation if available, None otherwise.
+        """
+        return self._pktfwd_loader.get_class()()
+
+    def get_pktfwd_class(self):
+        """Returns type of currently configured packet forwarder implementation.
+
+        :return: Type of IPktFwd implementation if available.
+            None otherwise.
+        """
+        return self._pktfwd_loader.get_class()
+
+    def get_pktfwds(self):
+        """Returns dictionary of all available packet forwarders.
+
+        :return: Dictionary of packet forwarders.
+            - key: name of the class which implements IPktFwd,
+            - value: Type of packet forwarder which implements IPktFwd.
+        """
+        return self._pktfwd_loader.get_classes()
+
+    def get_pktfwds_printable(self):
+        """Returns all available packet forwarders in printable format.
+
+        :return: String containing printable list of packet forwarders.
+        """
+        return self._pktfwd_loader.get_classes_printable()
diff --git a/core/pktfwd_controller.py b/core/pktfwd_controller.py
new file mode 100644
index 00000000..4f300ce8
--- /dev/null
+++ b/core/pktfwd_controller.py
@@ -0,0 +1,68 @@
+# Copyright 2016 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.
+
+"""Packet forwarder controller for Physical to Physical deployment
+"""
+
+import logging
+
+from conf import settings
+
+
+class PktFwdController(object):
+    """Packet forwarder controller for P2P deployment scenario.
+
+    Attributes:
+        _pktfwd_class: The packet forwarder class to be used.
+        _pktfwd: The packet forwarder object controlled by this controller
+    """
+    def __init__(self, pktfwd_class):
+        """Initializes up the prerequisites for the P2P deployment scenario.
+
+        :vswitch_class: the vSwitch class to be used.
+        """
+        self._logger = logging.getLogger(__name__)
+        self._pktfwd_class = pktfwd_class
+        self._pktfwd = pktfwd_class()
+        self._logger.debug('Creation using ' + str(self._pktfwd_class))
+
+    def setup(self):
+        """Sets up the packet forwarder for p2p.
+        """
+        self._logger.debug('Setup using ' + str(self._pktfwd_class))
+
+        try:
+            self._pktfwd.start()
+        except:
+            self._pktfwd.stop()
+            raise
+
+    def stop(self):
+        """Tears down the packet forwarder created in setup().
+        """
+        self._logger.debug('Stop using ' + str(self._pktfwd_class))
+        self._pktfwd.stop()
+
+    def __enter__(self):
+        self.setup()
+
+    def __exit__(self, type_, value, traceback):
+        self.stop()
+
+    def get_pktfwd(self):
+        """Get the controlled packet forwarder
+
+        :return: The controlled IPktFwd
+        """
+        return self._pktfwd