vnfs: Enable PVP using vhost-user

Enable booting of a VM with DPDK and run testpmd for
PVP testing.
* Added throughput and back2back tests with pvp deployment scenario in
  01_testcases.conf
* PVP requires DPDK 2.0 with VHOST_USER enabled and QEMU 2.2.0
* Tested on CentOS7 and Fedora 20
* Fix conflict with change 1078

Recent Changes:
* Fix merge conflict (testcase.py and testcases.conf)
* Remove QEMU_DIR. User must set QEMU_BIN
* Set bidir traffic to True
* Add flow for bi-directional traffic
* Use working OVS_TAG ad2e649834be20dd01b1632799fe778106a96a2d
* Merge change 1096 (src: Add QEMU makefile)
* Set virtio-net-pci csum=off and other variables to off
* Move hardcoded values to conf/*

JIRA: VSPERF-56

Change-Id: I4ad184531064855493483d9833a7722c9f7d3576
Signed-off-by: Madarang, Dino Simeon <dino.simeonx.madarang@intel.com>
Signed-off-by: Meghan Halton <meghan.halton@intel.com>
Reviewed-by: Billy O Mahony <billy.o.mahony@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>
Reviewed-by: Martin Klozik <martinx.klozik@intel.com>

1 files changed, 35 insertions, 4 deletions

diff --git a/core/loader/loader.py b/core/loader/loader.py
index 57787751..39b50f09 100755
--- a/core/loader/loader.py
+++ b/core/loader/loader.py
@@ -20,6 +20,7 @@ from core.loader.loader_servant import LoaderServant
 from tools.pkt_gen.trafficgen import ITrafficGenerator
 from tools.collectors.collector import ICollector
 from vswitches.vswitch import IVSwitch
+from vnfs.vnf.vnf import IVnf
 
 class Loader(object):
     """Loader class - main object context holder.
@@ -27,6 +28,7 @@ class Loader(object):
     _trafficgen_loader = None
     _metrics_loader = None
     _vswitch_loader = None
+    _vnf_loader = None
 
     def __init__(self):
         """Loader ctor - initialization method.
@@ -50,6 +52,11 @@ class Loader(object):
             settings.getValue('VSWITCH'),
             IVSwitch)
 
+        self._vnf_loader = LoaderServant(
+            settings.getValue('VNF_DIR'),
+            settings.getValue('VNF'),
+            IVnf)
+
     def get_trafficgen(self):
         """Returns a new instance configured traffic generator.
 
@@ -144,10 +151,34 @@ class Loader(object):
         """
         return self._vswitch_loader.get_classes_printable()
 
+    def get_vnf(self):
+        """Returns instance of currently configured vnf implementation.
+
+        :return: IVnf implementation if available, None otherwise.
+        """
+        return self._vnf_loader.get_class()()
+
     def get_vnf_class(self):
-        """Returns a new instance of the configured VNF
+        """Returns type of currently configured vnf implementation.
+
+        :return: Type of IVnf implementation if available.
+            None otherwise.
+        """
+        return self._vnf_loader.get_class()
+
+    def get_vnfs(self):
+        """Returns dictionary of all available vnfs.
+
+        :return: Dictionary of vnfs.
+            - key: name of the class which implements IVnf,
+            - value: Type of vnf which implements IVnf.
+        """
+        return self._vnf_loader.get_classes()
+
+    def get_vnfs_printable(self):
+        """Returns all available vnfs in printable format.
 
-        Currently always returns None
+        :return: String containing printable list of vnfs.
         """
-        #TODO: Load the VNF class
-        return None
+        return self._vnf_loader.get_classes_printable()
+