[dts] [[patch v1]] framework/etgen.py: add in a function for ixia to send fixed number of packets

[wang fei]

Signed-off-by: wang fei <feix.y.wang at intel.com>
---
 framework/etgen.py | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/framework/etgen.py b/framework/etgen.py
index f45a96e..7ee24ac 100644
--- a/framework/etgen.py
+++ b/framework/etgen.py
@@ -141,7 +141,6 @@ class IxiaPacketGenerator(SSHConnection):
         self.logger = getLogger(self.NAME)
         super(IxiaPacketGenerator, self).__init__(self.get_ip_address(),
                                                   self.NAME,
-                                                  self.get_username(),
                                                   self.get_password())
         super(IxiaPacketGenerator, self).init_log(self.logger)
 
@@ -869,3 +868,35 @@ class IxiaPacketGenerator(SSHConnection):
         retrieved capture buffer. Call packetGroupStats get before.
         """
         return self._packetgroup_cget_value('averageLatency')
+    
+    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
+        """
+        rxPortlist, txPortlist = self._configure_everything(portList, ratePercent)
+        time.sleep(delay)
+        self.send_expect("ixStopTransmit portList","%",5)
+        
+        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(runTime)
+        time.sleep(3)
+		
+        txPackets = 0
+        rxPackets = 0
+        for port in txPortlist:
+            self.stat_get_stat_all_stats(port)
+            txPackets += self.get_frames_sent()
+            rxPackets += self.get_frames_received()
+        self.logger.info("Transmitted packets :%s" % txPackets)
+        self.logger.info("Received packets :%s" % rxPackets)
+		
+        return txPackets,rxPackets
-- 
2.7.4