teststeps: Improvements and bugfixing of teststeps

This patch introduces several improvements and small bugfixes
of teststeps. These changes were identified during implementation
of OVS/DPDK regression tests.

Patch content:
* teststeps: step aliases were implemented
* teststeps: improved filtering by regex for any step, which returns string
  or list of stings; filter will process all lines
* teststeps: support for log object
* teststeps: support for trafficgen get_results call
* teststeps: configurable suppression of step validation
* trafficgen: remove old results before traffic is executed
* trafficgen: support for flow control on/off (IxNet)
* trafficgen: support for configurable learning frames (IxNet)
* trafficgen: support for runtime changes of TRAFFICGEN_PKT_SIZES, _DURATION
  and _LOSSRATE
* vnf: flush pexpect output of previous commands
* vnf: use execute_and_wait() to ensure correct cmds order
* vnf: dpdk vHost User interface name set according to its type,
  e.g. dpdkvhostuserclient
* vswitch: support for OVS restart
* decap: simplify configuration of tunneling decapsulation tests
* settings: values of all configuration options are restored after TC execution
* modified formatting of test description used by --list
* testcase name and description is logged before its execution
* small bugfixes

JIRA: VSPERF-539

Change-Id: I550ba0d897ece89abd3f33d6d66f545c4d863e7b
Signed-off-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Al Morton <acmorton@att.com>
Reviewed-by: Christian Trautman <ctrautma@redhat.com>
Reviewed-by: Sridhar Rao <sridhar.rao@spirent.com>
Reviewed-by: Trevor Cooper <trevor.cooper@intel.com>

1 files changed, 9 insertions, 2 deletions

diff --git a/tools/pkt_gen/ixnet/ixnet.py b/tools/pkt_gen/ixnet/ixnet.py
index 972fa331..b8fb1879 100755
--- a/tools/pkt_gen/ixnet/ixnet.py
+++ b/tools/pkt_gen/ixnet/ixnet.py
@@ -153,9 +153,8 @@ class IxNet(trafficgen.ITrafficGenerator):
         """Initialize IXNET members
         """
         super().__init__()
-        self._script = os.path.join(settings.getValue('TRAFFICGEN_IXIA_3RD_PARTY'),
-                                    settings.getValue('TRAFFICGEN_IXNET_TCL_SCRIPT'))
         self._tclsh = tkinter.Tcl()
+        self._script = None
         self._cfg = None
         self._logger = logging.getLogger(__name__)
         self._params = None
@@ -177,6 +176,8 @@ class IxNet(trafficgen.ITrafficGenerator):
     def configure(self):
         """Configure system for IxNetwork.
         """
+        self._script = os.path.join(settings.getValue('TRAFFICGEN_IXIA_3RD_PARTY'),
+                                    settings.getValue('TRAFFICGEN_IXNET_TCL_SCRIPT'))
         self._cfg = {
             'lib_path': settings.getValue('TRAFFICGEN_IXNET_LIB_PATH'),
             # IxNetwork machine configuration
@@ -225,6 +226,8 @@ class IxNet(trafficgen.ITrafficGenerator):
             'multipleStreams': traffic['multistream'],
             'streamType': traffic['stream_type'],
             'rfc2544TestType': 'throughput',
+            'flowControl': "True" if traffic['flow_control'] else "False",
+            'learningFrames': "True" if traffic['learning_frames'] else "False",
         }
         self._params['traffic'] = self.traffic_defaults.copy()
 
@@ -280,6 +283,8 @@ class IxNet(trafficgen.ITrafficGenerator):
             'multipleStreams': traffic['multistream'],
             'streamType': traffic['stream_type'],
             'rfc2544TestType': 'throughput',
+            'flowControl': "True" if traffic['flow_control'] else "False",
+            'learningFrames': "True" if traffic['learning_frames'] else "False",
         }
         self._params['traffic'] = self.traffic_defaults.copy()
 
@@ -418,6 +423,8 @@ class IxNet(trafficgen.ITrafficGenerator):
             'multipleStreams': traffic['multistream'],
             'streamType': traffic['stream_type'],
             'rfc2544TestType': 'back2back',
+            'flowControl': "True" if traffic['flow_control'] else "False",
+            'learningFrames': "True" if traffic['learning_frames'] else "False",
         }
         self._params['traffic'] = self.traffic_defaults.copy()