[dts] [patch v2] framework/etgen.py : add in two functions which will be used for nic_single_core_perf test_suite, thest two function will work together to send fixed number of packets for ixia ports and return all received packets on total ixia rx ports

[wang fei]

Signed-off-by: wang fei <feix.y.wang at intel.com>
---
 framework/etgen.py | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/framework/etgen.py b/framework/etgen.py
index b3a5931..85c9814 100644
--- a/framework/etgen.py
+++ b/framework/etgen.py
@@ -868,3 +868,47 @@ class IxiaPacketGenerator(SSHConnection):
         retrieved capture buffer. Call packetGroupStats get before.
         """
         return self._packetgroup_cget_value('averageLatency')
+
+    def _configure_everything2(self, port_list, rate_percent, latency=False):
+        """
+        Renew _configure_everyething() function,and pop configure_transmission() in the configuration sequence,
+        And do the traffic start action in later configuration in function send_packets()
+        """
+        rxPortlist, txPortlist = self.prepare_port_list(port_list, rate_percent, latency)
+        self.prepare_ixia_for_transmission(txPortlist, rxPortlist)
+        self.start_transmission()
+        self.clear_tcl_commands()
+        return rxPortlist, txPortlist
+
+    def send_packets(self,portList,ratePercent,packetNum,delay=5,runTime=60):
+        """
+        configure ixia to send fixed number of packets for each tx port
+        and returns the throughput for rx ports
+        note that this funcion is only set for test_suite nic_single_core_perf,
+        not for common use
+        """
+        rxPortlist, txPortlist = self._configure_everything2(portList, ratePercent)
+
+        self.send_expect("stream config -numFrames %s" % packetNum,"%",5)
+        self.send_expect("stream config -dma stopStream","%",5)
+        for txPort in txPortlist:
+            port = self.pci_to_port(self.tester.get_pci(txPort))
+            self.send_expect("stream set %d %d %d 1" % (self.chasId, port['card'], port['port']),"%",5)
+
+        self.send_expect("ixWritePortsToHardware portList","%",5)
+        self.send_expect("ixClearStats portList","%",5)
+        self.send_expect("ixStartTransmit portList","%",5)
+        time.sleep(10)
+
+        rxPackets = 0
+        for port in txPortlist:
+            self.stat_get_stat_all_stats(port)
+            txPackets = self.get_frames_sent()
+            while txPackets != packetNum:
+                time.sleep(10)
+                self.stat_get_stat_all_stats(port)
+                txPackets = self.get_frames_sent()
+            rxPackets += self.get_frames_received()
+        self.logger.info("Received packets :%s" % rxPackets)
+
+        return rxPackets
-- 
2.7.4