[dts] [DTS][PATCH V1 2/2] creat a pcap file include 2000 random packet, used scapy send the pcap, and check dut not loss packet

[Xu, HuilongX]

Hi all,
Could you have time, review this patch and give me some comments.
Thanks  a lot

> -----Original Message-----
> From: Xu, HuilongX
> Sent: Thursday, February 04, 2016 11:22 AM
> To: dts at dpdk.org
> Cc: Xu, HuilongX
> Subject: [DTS][PATCH V1 2/2] creat a pcap file include 2000 random packet,
> used scapy send the pcap, and check dut not loss packet
> 
> Signed-off-by: xu,huilong <huilongx.xu at intel.com>
> ---
>  tests/TestSuite_pmd.py | 55
> +++++++++++++++++++++++++++++++++++++++++++++-----
>  1 file changed, 50 insertions(+), 5 deletions(-)
> 
> diff --git a/tests/TestSuite_pmd.py b/tests/TestSuite_pmd.py
> index eeec53f..7a8df89 100644
> --- a/tests/TestSuite_pmd.py
> +++ b/tests/TestSuite_pmd.py
> @@ -1,6 +1,6 @@
>  # BSD LICENSE
>  #
> -# Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
> +# Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
>  # All rights reserved.
>  #
>  # Redistribution and use in source and binary forms, with or without
> @@ -37,12 +37,14 @@ Test userland 10Gb PMD
>  import dts
>  import re
>  import time
> +import random
>  from test_case import TestCase
>  from plotting import Plotting
>  from time import sleep
>  from settings import HEADER_SIZE
>  from pmd_output import PmdOutput
>  from etgen import IxiaPacketGenerator
> +from scapy.all import *
> 
>  class TestPmd(TestCase,IxiaPacketGenerator):
> 
> @@ -81,6 +83,8 @@ class TestPmd(TestCase,IxiaPacketGenerator):
>          self.frame_sizes = [64, 65, 128, 256, 512, 1024, 1280, 1518]
> 
>          self.rxfreet_values = [0, 8, 16, 32, 64, 128]
> +
> +        self.total_packets = 2000
> 
>          self.test_cycles = [{'cores': '1S/1C/1T', 'Mpps': {}, 'pct': {}},
>                              {'cores': '1S/2C/1T', 'Mpps': {}, 'pct': {}},
> @@ -113,7 +117,37 @@ class TestPmd(TestCase,IxiaPacketGenerator):
>          Run before each test case.
>          """
>          pass
> -
> +    def random_ip(self, iptype):
> +        tmp = []
> +        if 'ipv4' == iptype:
> +            for i in range(4):
> +                tmp.append(str(random.randint(10, 254)))
> +            return '.'.join(tmp)
> +        if 'ipv6' == iptype:
> +            for i in range(8):
> +                tmp.append(str(hex(random.randint(0, 65535)))[2:])
> +            return ':'.join(tmp)
> +        else:
> +            self.logger.warning("invalid ip type: %s" % iptype)
> +    def creat_pcap(self, filename, dst_mac, tx_intf):
> +        packets = []
> +        packet_type = [Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IP(src="%s" % self.random_ip("ipv4"),
> dst="%s" % self.random_ip("ipv4"))/("X"), #ipv4 packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IP(src="%s" % self.random_ip("ipv4"),
> dst="%s" % self.random_ip("ipv4"))/TCP()/("X"), #ipv4 tcp packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IP(src="%s" % self.random_ip("ipv4"),
> dst="%s" % self.random_ip("ipv4"))/UDP()/("X"), #ipv4 udp packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IP(src="%s" % self.random_ip("ipv4"),
> dst="%s" % self.random_ip("ipv4"))/SCTP(tag=1)/("X"),#ipv4 sctp packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/("X"), # l2 packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IPv6(src="%s" % self.random_ip("ipv6"),
> dst="%s" % self.random_ip("ipv6"))/("X"), # ipv6 packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IPv6(src="%s" % self.random_ip("ipv6"),
> dst="%s" % self.random_ip("ipv6"))/UDP()/("X"), #ipv6 udp packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IPv6(src="%s" % self.random_ip("ipv6"),
> dst="%s" % self.random_ip("ipv6"))/TCP()/("X"), # ipv6 tcp packet
> +                       Ether(dst="%s" % dst_mac,
> src=get_if_hwaddr(tx_intf))/IPv6(src="%s" % self.random_ip("ipv6"),
> dst="%s" % self.random_ip("ipv6"))/SCTP(tag=1)/("X"), # ipv6 sctp packet
> +                      ]
> +        for packet in packet_type:
> +            for i in range(self.total_packets / len(packet_type)):
> +                packets.append(packet)
> +        for i in range(self.total_packets % len(packet_type)):
> +            packets.append(packet_type[random.randint(0, len(packet_type)
> - 1)])
> +        wrpcap(filename, packets)
> +        self.tester.session.copy_file_to(filename)
>      def test_perf_pmd_performance_4ports(self):
>          """
>          PMD Performance Benchmarking with 4 ports.
> @@ -322,11 +356,22 @@ class TestPmd(TestCase,IxiaPacketGenerator):
>          port_mask = dts.create_mask([self.dut_ports[0],
> self.dut_ports[1]])
> 
>          self.pmdout.start_testpmd("1S/2C/1T", "--portmask=%s" % port_mask,
> socket=self.ports_socket)
> +
> +        self.dut.send_expect("set fwd mac", "testpmd> ")
>          self.dut.send_expect("start", "testpmd> ")
> -        for size in self.frame_sizes:
> -            self.send_packet(size)
> +        interface = self.tester.get_interface(
> +            self.tester.get_local_port(self.dut_ports[0]))
> +        mac = self.dut.get_mac_address(self.dut_ports[0])
> +        self.creat_pcap("random_packet.pcap", mac, interface)
> +        self.tester.scapy_append('pcap = rdpcap("random_packet.pcap")')
> +        self.tester.scapy_append('sendp(pcap, iface="%s")' % interface)
> +        self.tester.scapy_execute(120)
> +
> +        #self.dut.send_expect("stop", "testpmd> ")
> +        dut_rxpackets = self.get_stats(self.dut_ports[0])['RX-packets']
> +        dut_txpackets = self.get_stats(self.dut_ports[1])['TX-packets']
> +        self.verify(dut_txpackets == self.total_packets and dut_rxpackets
> == dut_txpackets, "loss packets,tester send %d packets, dut rx packets %s,
> dut tx packets %s" %(self.total_packets, dut_rxpackets, dut_txpackets) )
> 
> -        self.dut.send_expect("stop", "testpmd> ")
>          self.dut.send_expect("quit", "# ", 30)
>          sleep(5)
> 
> --
> 1.9.3