framework: Add reworked framework to repo

This commit adds the vSwitch Integration Test Framework whose
design, based off TOIT, is outlined in the HLD previously made
availiable to the community for review.

The design of this framework allows developers to add different
implementations of components, specifically vSwitches, Traffic
Generators, Metrics Collectors and VNFs, easily.

The goal of this design is that all testcases should run regardless of
what is "under the hood".

This commit adds support for running the framework for a phy to phy
RFC2544 testcase only. More testcases will be added by the community.

vSwitches supported at this time:
* Intel DPDK (r) accelerated OpenvSwitch

Traffic Generators supported at this time:
* IxNet - IxNetwork Implementation
* Ixia - IxExplorer Implementation
* Dummy - Manual Implementation

Metrics Collectors supported at this time:
* Linux Metrics

No VNFs are supported at this time but the framework outlines how they
should be integrated and provides APIs for them to adhere to.

JIRA: VSPERF-27
Change-Id: I312e1a1199487ffee8f824be06cd97d4f793eee0
Signed-off-by: Stephen Finucane <Stephen.Finucane@intel.com>
Signed-off-by: Meghan Halton <Meghan.Halton@intel.com>
Signed-off-by: Christopher Nolan <Christopher.Nolan@intel.com>
Signed-off-by: Maryam Tahhan <Maryam.Tahhan@intel.com>
Signed-off-by: Ciara Loftus <Ciara.Loftus@intel.com>
Signed-off-by: Mark Kavanagh <Mark.B.Kavanagh@intel.com>
Signed-off-by: Cian Ferriter <Cian.Ferriter@intel.com>
Signed-off-by: Timo Puha <TimoX.Puha@intel.com>
Signed-off-by: Billy O'Mahony <billy.o.mahony@intel.com>
Signed-off-by: Michal Weglicki <MichalX.Weglicki@intel.com>
Signed-off-by: Rory Sexton <Rory.Sexton@intel.com>
Signed-off-by: Ian Stokes <Ian.Stokes@intel.com>
Signed-off-by: Kevin Traynor <Kevin.Traynor@intel.com>
Signed-off-by: Dino Simeon Madarang <dino.simeonx.madarang@intel.com>
Reviewed-by: Eugene Snider <Eugene.Snider@huawei.com>
Reviewed-by: Aihua Li <aihua.li@huawei.com>

1 files changed, 143 insertions, 0 deletions

diff --git a/vswitches/ovs_dpdk_vhost.py b/vswitches/ovs_dpdk_vhost.py
new file mode 100644
index 00000000..d2e8907f
--- /dev/null
+++ b/vswitches/ovs_dpdk_vhost.py
@@ -0,0 +1,143 @@
+# 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.
+
+"""VSPERF VSwitch implementation using DPDK and vhost ports
+"""
+
+from conf import settings
+from vswitches.vswitch import IVSwitch
+from src.ovs import VSwitchd, OFBridge
+from src.dpdk import dpdk
+
+VSWITCHD_CONST_ARGS = ['--', '--log-file']
+
+class OvsDpdkVhost(IVSwitch):
+    """VSwitch implementation using DPDK and vhost ports
+
+    Generic OVS wrapper functionality in src.ovs is maximally used. This
+    class wraps DPDK system configuration along with DPDK specific OVS
+    parameters
+
+    The method docstrings document only considerations specific to this
+    implementation. For generic information of the nature of the methods,
+    see the interface.
+    """
+    def __init__(self):
+        vswitchd_args = ['--dpdk']
+        vswitchd_args += settings.getValue('VSWITCHD_DPDK_ARGS')
+        vswitchd_args += VSWITCHD_CONST_ARGS
+
+        self._vswitchd = VSwitchd(vswitchd_args=vswitchd_args)
+        self._bridges = {}
+
+    def start(self):
+        """See IVswitch for general description
+
+        Activates DPDK kernel modules, ovsdb and vswitchd.
+        """
+        dpdk.init()
+        self._vswitchd.start()
+
+    def stop(self):
+        """See IVswitch for general description
+
+        Kills ovsdb and vswitchd and removes DPDK kernel modules.
+        """
+        self._vswitchd.kill()
+        dpdk.cleanup()
+
+    def add_switch(self, switch_name):
+        """See IVswitch for general description
+        """
+        bridge = OFBridge(switch_name)
+        bridge.create()
+        bridge.set_db_attribute('Open_vSwitch', '.',
+                                'other_config:max-idle', '60000')
+        bridge.set_db_attribute('Bridge', bridge.br_name,
+                                'datapath_type', 'netdev')
+        self._bridges[switch_name] = bridge
+
+    def del_switch(self, switch_name):
+        """See IVswitch for general description
+        """
+        bridge = self._bridges[switch_name]
+        self._bridges.pop(switch_name)
+        bridge.destroy()
+
+    def add_phy_port(self, switch_name):
+        """See IVswitch for general description
+
+        Creates a port of type dpdk.
+        The new port is named dpdk<n> where n is an integer starting from 0.
+        """
+        bridge = self._bridges[switch_name]
+        dpdk_count = self._get_port_count(bridge, 'type=dpdk')
+        port_name = 'dpdk' + str(dpdk_count)
+        params = ['--', 'set', 'Interface', port_name, 'type=dpdk']
+        of_port = bridge.add_port(port_name, params)
+
+        return (port_name, of_port)
+
+    def add_vport(self, switch_name):
+        """See IVswitch for general description
+
+        Creates a port of type dpdkvhost
+        The new port is named dpdkvhost<n> where n is an integer starting
+        from 0
+        """
+        bridge = self._bridges[switch_name]
+        vhost_count = self._get_port_count(bridge, 'type=dpdkvhost')
+        port_name = 'dpdkvhost' + str(vhost_count)
+        params = ['--', 'set', 'Interface', port_name, 'type=dpdkvhost']
+        of_port = bridge.add_port(port_name, params)
+
+        return (port_name, of_port)
+
+    def get_ports(self, switch_name):
+        """See IVswitch for general description
+        """
+        bridge = self._bridges[switch_name]
+        ports = list(bridge.get_ports().items())
+        return [(name, of_port) for (name, (of_port, _)) in ports]
+
+    def del_port(self, switch_name, port_name):
+        """See IVswitch for general description
+        """
+        bridge = self._bridges[switch_name]
+        bridge.del_port(port_name)
+
+    def add_flow(self, switch_name, flow):
+        """See IVswitch for general description
+        """
+        bridge = self._bridges[switch_name]
+        bridge.add_flow(flow)
+
+    def del_flow(self, switch_name, flow=None):
+        """See IVswitch for general description
+        """
+        flow = flow or {}
+        bridge = self._bridges[switch_name]
+        bridge.del_flow(flow)
+
+    @staticmethod
+    def _get_port_count(bridge, param):
+        """Returns the number of ports having a certain parameter
+
+        :param bridge: The src.ovs.ofctl.OFBridge on which to operate
+        :param param: The parameter to search for
+        :returns: Count of matches
+        """
+        port_params = [c for (_, (_, c)) in list(bridge.get_ports().items())]
+        param_hits = [i for i in port_params if param in i]
+        return len(param_hits)