traffic: Configurable traffic details

Traffic generated by traffic generator is based on default
values and their modifications specific to particular testing
scenario. Traffic default values were defined inside VSPERF
code and it was not possible to change them. This patch introduces
new TRAFFIC dictionary inside 03_traffic.conf. Thus user can
modify any of TRAFFIC values either in configuration file
or by CLI or by 'Parameters' section of testcase definition.
Following CLI options were obsoleted by this patch:
    'bidirectional', 'traffic_type', 'iload', 'multistream',
    'stream_type' and 'pre-installed_flows'
Following CLI option was renamed to be consistent with other options:
    'tunnel_type' => 'TUNNEL_TYPE'
Following sections of testcase definition were obsoleted:
    "Traffic Type", "biDirectional", "MultiStream", "Stream Type",
    "Pre-installed Flows", "Flow Type" and "iLoad"
New TRAFFIC dictionary should be used instead of old CLI options
and old testcase definition sections. Testcase definitons,
yardstick sample testcases and documentation were updated to reflect
configuration changes.

JIRA: VSPERF-433

Change-Id: I03a388c766491d5688e715f6d7b51e8e0377ec27
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: Bill Michalowski <bmichalo@redhat.com>
Reviewed-by: Antonio Fischetti <antonio.fischetti@intel.com>
Reviewed-by: <sridhar.rao@spirent.com>

1 files changed, 8 insertions, 6 deletions

diff --git a/tools/pkt_gen/trafficgen/trafficgen.py b/tools/pkt_gen/trafficgen/trafficgen.py
index fb40cd92..262df71d 100755
--- a/tools/pkt_gen/trafficgen/trafficgen.py
+++ b/tools/pkt_gen/trafficgen/trafficgen.py
@@ -15,16 +15,18 @@
 
 This is an abstract class for traffic generators.
 """
+import copy
+from conf import settings
 
-#TODO update Back2Back method description when Result implementation will
-#be ready.
-
-from tools.pkt_gen.trafficgen.trafficgenhelper import TRAFFIC_DEFAULTS
+CMD_PREFIX = 'gencmd : '
 
 class ITrafficGenerator(object):
     """Model of a traffic generator device.
     """
-    _traffic_defaults = TRAFFIC_DEFAULTS.copy()
+    def __init__(self):
+        """Initialization of interface
+        """
+        self._default_traffic = copy.deepcopy(settings.getValue('TRAFFIC'))
 
     @property
     def traffic_defaults(self):
@@ -35,7 +37,7 @@ class ITrafficGenerator(object):
         will likely break traffic generator implementations or tests
         respectively.
         """
-        return self._traffic_defaults
+        return self._default_traffic
 
     def __enter__(self):
         """Connect to the traffic generator.