3 files changed, 159 insertions, 0 deletions
diff --git a/tools/pkt_fwd/__init__.py b/tools/pkt_fwd/__init__.py
new file mode 100644
index 00000000..91247e72
--- /dev/null
+++ b/tools/pkt_fwd/__init__.py
@@ -0,0 +1,19 @@
+# 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 forwarders package which contain:
+- All relevant implementations of packet forwarders.
+- Interface definition stored in "pkt_fwd"
+"""
diff --git a/tools/pkt_fwd/pkt_fwd.py b/tools/pkt_fwd/pkt_fwd.py
new file mode 100644
index 00000000..2580ee1f
--- /dev/null
+++ b/tools/pkt_fwd/pkt_fwd.py
@@ -0,0 +1,53 @@
+# 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.
+"""Abstract "packet forwarding" model.
+
+This is an abstract class for packet forwarders.
+"""
+
+class IPktFwd(object):
+    """Interface class that is implemented by specific classes
+    of packet forwarders
+    """
+
+    def __enter__(self):
+        """Start the packet forwarder.
+
+        Provide a context manager interface to the packet forwarders.
+        This simply calls the :func:`start` function.
+        """
+        return self.start()
+
+    def __exit__(self, type_, value, traceback):
+        """Stop the packet forwarder.
+
+        Provide a context manager interface to the packet forwarders.
+        This simply calls the :func:`stop` function.
+        """
+        self.stop()
+
+    def start(self):
+        """Start the packet forwarder.
+
+        :returns: None
+        """
+        raise NotImplementedError('Please call an implementation.')
+
+    def stop(self):
+        """Stop the packet forwarder.
+
+        :returns: None
+        """
+        raise NotImplementedError('Please call an implementation.')
+
diff --git a/tools/pkt_fwd/testpmd.py b/tools/pkt_fwd/testpmd.py
new file mode 100644
index 00000000..d8ed8905
--- /dev/null
+++ b/tools/pkt_fwd/testpmd.py
@@ -0,0 +1,87 @@
+# 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.
+
+"""VSPERF TestPMD implementation
+"""
+
+import logging
+import pexpect
+from conf import settings
+from src.dpdk import dpdk
+from src.dpdk import TestPMDProcess
+from tools.pkt_fwd.pkt_fwd import IPktFwd
+
+_LOGGER = logging.getLogger(__name__)
+_VSWITCHD_CONST_ARGS = ['--', '-i']
+
+class TestPMD(IPktFwd):
+    """TestPMD implementation (only phy2phy deployment is supported)
+
+    This is wrapper for functionality implemented in ${DPDK}/app/test-pmd.
+
+    The method docstrings document only considerations specific to this
+    implementation. For generic information of the nature of the methods,
+    see the interface definition.
+    """
+
+    _logger = logging.getLogger()
+
+    def __init__(self):
+        vswitchd_args = settings.getValue('VSWITCHD_DPDK_ARGS')
+        vswitchd_args += _VSWITCHD_CONST_ARGS
+        vswitchd_args += settings.getValue('TESTPMD_ARGS')
+
+        self._nports = len(settings.getValue('WHITELIST_NICS'))
+        self._fwdmode = settings.getValue('TESTPMD_FWD_MODE')
+        self._csum_layer = settings.getValue('TESTPMD_CSUM_LAYER')
+        self._csum_calc = settings.getValue('TESTPMD_CSUM_CALC')
+        self._csum_tunnel = settings.getValue('TESTPMD_CSUM_PARSE_TUNNEL')
+
+        self._testpmd = TestPMDProcess(testpmd_args=vswitchd_args)
+
+    def start(self):
+        """See IPktFwd for general description
+
+        Activates testpmd.
+        """
+        self._logger.info("Starting TestPMD...")
+        dpdk.init()
+        self._testpmd.start()
+        self._logger.info("TestPMD...Started.")
+
+        self._testpmd.send('set fwd {}'.format(self._fwdmode), 1)
+
+        for port in range(self._nports):
+            self._testpmd.send('csum set {} {} {}'.format(
+                self._csum_layer, self._csum_calc, port), 1)
+            self._testpmd.send('csum parse_tunnel {} {}'.format(
+                self._csum_tunnel, port), 1)
+
+        self._testpmd.send('start', 1)
+
+    def stop(self):
+        """See IPktFwd for general description
+
+        Kills testpmd.
+        """
+        try:
+            self._testpmd.send('stop')
+            self._testpmd.wait('Done.', 5)
+            self._testpmd.send('quit', 2)
+            self._testpmd.kill()
+        except pexpect.EOF:
+            pass
+        dpdk.cleanup()
+
+