Introduce reconfig suites, for dot1q+ip4+vxlan

Ticket: CSIT-1551

+ Config copied from other suites.
+ Layer keywords prepared for additional chains.
+ Renamed "create" argument to "vlan_per_chain".
+ TrafficGenerator result extraction improvements.
 + Also unified TG type and subtype checking.
+ Throughput estimated as PDR for zero PLR.
+ Actual Qemu start is skipped.
+ Parse xstats instead of stats in trex stop scipt.
 - Because stats are unconditionally cleared on each script connect.
+ Remember start values to get better ReceiveMeasurementResult at stop.
+ Expose loss count and time as appropriate test message.
+ Autogen support.
+ Multiple chain amounts and core densities.
 - Only 1 additional chain.
+ Proper TAGs. Documented.
 + Clarified min framesize tags are for TG-DUT.
  + Added a TODO concerning overhead values.
 + Added 118B tag.
+ Robot performance keywords improvements.
 + Added missing return value documentation.
 + Frame size as required test variable, not an explicit argument.
 + MLRsearch keyword to store result (not into test message).
  - TODO: De-duplicate: main keyword to measure, minor to set test message.
   - But implementation uses the fact default arguments are different.
 + Keywords for starting and stopping background traffic.
  - No checks whether start-stop pair is complete.
+ Multiple minor indentation and logging improvements.
- Missing / TODOs:
 - Support also vlan_per_chain=True?
 - Support dot1q without vxlan?
 - Support also deletion?
 - How to package config steps so -reconf can be generated from -ndrpdr?

Change-Id: If0270697f9ffa837c34ef802917220a53f156703
Signed-off-by: Vratko Polak <vrpolak@cisco.com>
(cherry picked from commit ff820e3d53434889aacde2373314c3be8d00f765)

1 files changed, 26 insertions, 13 deletions

diff --git a/resources/tools/trex/trex_stateless_stop.py b/resources/tools/trex/trex_stateless_stop.py
index 9ded59a041..9421356bc1 100755
--- a/resources/tools/trex/trex_stateless_stop.py
+++ b/resources/tools/trex/trex_stateless_stop.py
@@ -34,31 +34,44 @@ from trex.stl.api import *
 
 
 def main():
-    """Stop traffic if any is running."""
+    """Stop traffic if any is running. Report xstats."""
     client = STLClient()
     try:
         # connect to server
         client.connect()
 
         client.acquire(force=True)
+        # TODO: Support unidirection.
         client.stop(ports=[0, 1])
 
         # read the stats after the test
-        stats = client.get_stats()
+        xstats0 = client.get_xstats(0)
+        xstats1 = client.get_xstats(1)
 
-        print("#####statistics (approx.)#####")
-        print(json.dumps(stats, indent=4, separators=(',', ': ')))
-
-        lost_a = stats[0]["opackets"] - stats[1]["ipackets"]
-        lost_b = stats[1]["opackets"] - stats[0]["ipackets"]
-
-        print("\npackets lost from 0 --> 1:   {0} pkts".format(lost_a))
-        print("packets lost from 1 --> 0:   {0} pkts".format(lost_b))
-    except STLError as ex_error:
-        print(ex_error, file=sys.stderr)
-        sys.exit(1)
+    # If STLError happens, let the script fail with stack trace.
     finally:
         client.disconnect()
 
+    print("##### statistics port 0 #####")
+    print(json.dumps(xstats0, indent=4, separators=(',', ': ')))
+    print("##### statistics port 1 #####")
+    print(json.dumps(xstats1, indent=4, separators=(',', ': ')))
+
+    tx_0, rx_0 = xstats0["tx_good_packets"], xstats0["rx_good_packets"]
+    tx_1, rx_1 = xstats1["tx_good_packets"], xstats1["rx_good_packets"]
+    lost_a, lost_b = tx_0 - rx_1, tx_1 - rx_0
+
+    print("\npackets lost from 0 --> 1:   {0} pkts".format(lost_a))
+    print("packets lost from 1 --> 0:   {0} pkts".format(lost_b))
+
+    total_rcvd, total_sent = rx_0 + rx_1, tx_0 + tx_1
+    total_lost = total_sent - total_rcvd
+    # TODO: Add latency.
+    print(
+        "rate='unknown', totalReceived={rec}, totalSent={sen}, frameLoss={los},"
+        " latencyStream0(usec)=-1/-1/-1, latencyStream1(usec)=-1/-1/-1,"
+        " targetDuration='manual'".format(
+            rec=total_rcvd, sen=total_sent, los=total_lost))
+
 if __name__ == "__main__":
     main()