[dts] [PATCH V1] Add a function used to verify keep packets' order feature
Yuwei Zhang
yuwei1.zhang at intel.com
Thu Nov 2 15:53:14 CET 2017
use ixia to send and check packets' order captured which could be used to verify keep packets' order feature
Signed-off-by: Yuwei Zhang <yuwei1.zhang at intel.com>
---
framework/etgen.py | 20 ++++++++++++++++++++
framework/tester.py | 7 +++++++
2 files changed, 27 insertions(+)
diff --git a/framework/etgen.py b/framework/etgen.py
index b19ae84..3892252 100644
--- a/framework/etgen.py
+++ b/framework/etgen.py
@@ -558,6 +558,26 @@ class IxiaPacketGenerator(SSHConnection):
rxPortlist, txPortlist = self._configure_everything(port_list, rate_percent)
return self.get_transmission_results(rxPortlist, txPortlist, delay)
+ def is_packet_ordered(self, port_list, rate_percent=100, delay=5, latency=False):
+ self.send_expect("port setFactoryDefaults %d %d %d" % (self.chasId, self.ports[0]['card'], self.ports[0]['port']), '%')
+ self.send_expect('port config -receiveMode [expr $::portCapture|$::portRxFirstTimeStamp|$::portRxSequenceChecking|$::portRxModeWidePacketGroup]', '%')
+ self.send_expect('port config -autonegotiate true', '%')
+ self.send_expect('lappend portTxList [list %d %d %d]' % (self.chasId, self.ports[0]['card'], self.ports[0]['port']), '%')
+ self.send_expect('ixWritePortsToHardware portTxList', '%')
+ self.send_expect('set streamId 1', '%')
+ self.send_expect('stream setDefault', '%')
+ self.send_expect('ixStartPortPacketGroups %d %d %d' % (self.chasId, self.ports[0]['card'], self.ports[0]['port']), '%')
+ self.send_expect('ixStartTransmit portTxList', '%')
+ self.send_expect('after 1000', '%')
+ self.send_expect('ixStopTransmit portTxList', '%')
+ self.send_expect('ixStopPortPacketGroups %d %d %d' % (self.chasId, self.ports[0]['card'], self.ports[0]['port']), '%')
+ self.send_expect('after 5000', '%')
+ self.send_expect('packetGroupStats get %d %d %d 1 1' % (self.chasId, self.ports[0]['card'], self.ports[0]['port']), '%')
+ self.send_expect('packetroupStats getGroup 1', '%')
+ self.send_expect('set reverseSequenceError [packetGroupStats cget -reverseSequenceError]]', '%')
+ output = self.send_expect('puts $reverseSequenceError', '%')
+ return int(output[:-2])
+
def _configure_everything(self, port_list, rate_percent, latency=False):
"""
Prepare and configure IXIA ports for performance test.
diff --git a/framework/tester.py b/framework/tester.py
index 9208b0e..7062356 100644
--- a/framework/tester.py
+++ b/framework/tester.py
@@ -502,6 +502,13 @@ class Tester(Crb):
return None
return self.packet_gen.throughput(portList, rate_percent)
+ def verify_packet_order(self, portList, rate_percent=100, delay=5):
+ if self.check_port_list(portList, 'ixia'):
+ return self.ixia_packet_gen.is_packet_ordered(portList, rate_percent, delay)
+ else:
+ self.logger.warning("Only ixia port support check verify packet order function")
+ return False
+
def run_rfc2544(self, portlist, delay=120, permit_loss_rate=0):
"""
test_rate: the line rate we are going to test.
--
2.14.1.windows.1
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