trex: Add support for traffic capture

A support of traffic capture was added into T-Rex.
It allows to write a functional tests, which will
verify proper vSwitch functionality by inspection
of packets received by T-Rex.
A testcase example was added into integration
testcases.

JIRA: VSPERF-556

Change-Id: I5ad28479ca2ec29760b68f24510af1a6d74866ae
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>
Reviewed-by: Richard Elias <richardx.elias@intel.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/conf/03_traffic.conf b/conf/03_traffic.conf
index 3c7bd2f5..67318893 100644
--- a/conf/03_traffic.conf
+++ b/conf/03_traffic.conf
@@ -147,6 +147,30 @@ LOG_FILE_TRAFFIC_GEN = 'traffic-gen.log'
 #                      congestion (DEI header field).
 #                      Data type: int (NOTE: must fit to 1 bit)
 #                      Default value: 0
+#    'capture'       - A dictionary with traffic capture configuration.
+#                      NOTE: It is supported only by T-Rex traffic generator.
+#        'enabled'   - Specifies if traffic should be captured
+#                      Data type: bool
+#                      Default value: False
+#        'tx_ports'  - A list of ports, where frames transmitted towards DUT will
+#                      be captured. Ports have numbers 0 and 1. TX packet capture
+#                      is disabled if list of ports is empty.
+#                      Data type: list
+#                      Default value: [0]
+#        'rx_ports'  - A list of ports, where frames received from DUT will
+#                      be captured. Ports have numbers 0 and 1. RX packet capture
+#                      is disabled if list of ports is empty.
+#                      Data type: list
+#                      Default value: [1]
+#        'count'     - A number of frames to be captured. The same count value
+#                      is applied to both TX and RX captures.
+#                      Data type: int
+#                      Default value: 1
+#        'filter'    - An expression used to filter TX and RX packets. It uses the same
+#                      syntax as pcap library. See pcap-filter man page for additional
+#                      details.
+#                      Data type: str
+#                      Default value: ''
 TRAFFIC = {
     'traffic_type' : 'rfc2544_throughput',
     'frame_rate' : 100,
@@ -179,6 +203,13 @@ TRAFFIC = {
         'priority': 0,
         'cfi': 0,
     },
+    'capture': {
+        'enabled': False,
+        'tx_ports' : [0],
+        'rx_ports' : [1],
+        'count': 1,
+        'filter': '',
+    },
 }
 
 #path to traffic generators directory.