Re: [dts] [PATCH V1] tests/vf_port_start_stop: use scapy instead pktgen send pkts

["Tu, Lijuan" <lijuan.tu@intel.com>]

Ok, thanks for letting me know

> -----Original Message-----
> From: Ma, LihongX
> Sent: Tuesday, September 24, 2019 1:35 PM
> To: Tu, Lijuan <lijuan.tu@intel.com>
> Cc: Zhang, YanX A <yanx.a.zhang@intel.com>; dts@dpdk.org
> Subject: RE: [dts] [PATCH V1] tests/vf_port_start_stop: use scapy instead
> pktgen send pkts
> 
> Hi, Lijuan
> You can ignore this patch, I will push version V2.
> 
> -----Original Message-----
> From: Zhang, YanX A
> Sent: Wednesday, September 18, 2019 10:02 AM
> To: Ma, LihongX <lihongx.ma@intel.com>; dts@dpdk.org
> Cc: Ma, LihongX <lihongx.ma@intel.com>
> Subject: RE: [dts] [PATCH V1] tests/vf_port_start_stop: use scapy instead
> pktgen send pkts
> 
> Tested-by:  Zhang, YanX A <yanx.a.zhang@intel.com>
> 
> -----Original Message-----
> From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of lihong
> Sent: Wednesday, September 18, 2019 2:34 AM
> To: dts@dpdk.org
> Cc: Ma, LihongX <lihongx.ma@intel.com>
> Subject: [dts] [PATCH V1] tests/vf_port_start_stop: use scapy instead pktgen
> send pkts
> 
> Signed-off-by: lihong <lihongx.ma@intel.com>
> ---
>  tests/TestSuite_vf_port_start_stop.py | 82 +++++++++--------------------------
>  1 file changed, 20 insertions(+), 62 deletions(-)
> 
> diff --git a/tests/TestSuite_vf_port_start_stop.py
> b/tests/TestSuite_vf_port_start_stop.py
> index 2ff2d1c..4f0e406 100644
> --- a/tests/TestSuite_vf_port_start_stop.py
> +++ b/tests/TestSuite_vf_port_start_stop.py
> @@ -10,6 +10,7 @@ from utils import RED, GREEN  from net_device import
> NetDevice  from crb import Crb  from scapy.all import *
> +from scapy.layers.sctp import SCTP, SCTPChunkData
>  VM_CORES_MASK = 'all'
> 
>  class TestVfPortStartStop(TestCase):
> @@ -22,6 +23,8 @@ class TestVfPortStartStop(TestCase):
>          self.verify(len(self.dut_ports) >= 1, "Insufficient ports")
>          self.vm0 = None
>          self.filename = "/tmp/vf.pcap"
> +        self.tester_tx_port = self.tester.get_local_port(self.dut_ports[0])
> +        self.tester_tintf =
> + self.tester.get_interface(self.tester_tx_port)
> 
>          # set vf assign method and vf driver
>          self.vf_driver = self.get_suite_cfg()['vf_driver'] @@ -37,72 +40,25 @@
> class TestVfPortStartStop(TestCase):
>      def set_up(self):
> 
>          self.setup_1pf_2vf_1vm_env_flag = 0
> -
> -    def pktgen_prerequisites(self):
> -        """
> -        igb_uio.ko should be put in ~ before you using pktgen
> -        """
> -        out = self.tester.send_expect("ls", "#")
> -        self.verify("igb_uio.ko" in out, "No file igb_uio.ko, please add it in ~")
> -        self.tester.send_expect("modprobe uio", "#", 70)
> -        out = self.tester.send_expect("lsmod | grep igb_uio", "#")
> -        if "igb_uio" in out:
> -            self.tester.send_expect("rmmod -f igb_uio", "#", 70)
> -        self.tester.send_expect("insmod ~/igb_uio.ko", "#", 60)
> -        out = self.tester.send_expect("lsmod | grep igb_uio", "#")
> -        assert ("igb_uio" in out), "Failed to insmod igb_uio"
> -
> -        total_huge_pages = self.tester.get_total_huge_pages()
> -        if total_huge_pages == 0:
> -            self.tester.mount_huge_pages()
> -            self.tester.set_huge_pages(2048)
> -
> -    def pktgen_kill(self):
> -        """
> -        Kill all pktgen on tester.
> -        """
> -        pids = []
> -        pid_reg = r'p(\d+)'
> -        out = self.tester.alt_session.send_expect("lsof -Fp /var/run/.pg_config",
> "#", 20)
> -        if len(out):
> -            lines = out.split('\r\n')
> -            for line in lines:
> -                m = re.match(pid_reg, line)
> -                if m:
> -                    pids.append(m.group(1))
> -        for pid in pids:
> -            self.tester.alt_session.send_expect('kill -9 %s' % pid, '# ', 20)
> +        self.send_pks_session = None
> 
>      def send_and_verify(self, dst_mac, testpmd):
>          """
> -        Generates packets by pktgen
> +        Generates packets and verify
>          """
>          self.testpmd_reset_status(testpmd)
> 
> -        self.pktgen_prerequisites()
> -        # bind ports
> -        self.tester_tx_port = self.tester.get_local_port(self.dut_ports[0])
> -        self.tester_tx_pci = self.tester.ports_info[self.tester_tx_port]['pci']
> -        port = self.tester.ports_info[self.tester_tx_port]['port']
> -        self.tester_port_driver = port.get_nic_driver()
> -        self.tester.send_expect("./dpdk-devbind.py --force --bind=igb_uio %s" %
> self.tester_tx_pci, "#")
> -
> -        src_mac = self.tester.get_mac(self.tester_tx_port)
> +        src_mac = self.tester.get_mac(self.tester_tx_port)
>          if src_mac == 'N/A':
>              src_mac = "02:00:00:00:01"
> -
> -        self.create_pcap_file(self.filename, dst_mac, src_mac)
> -
> -        self.tester.send_expect("./pktgen -c 0x1f -n 2  --proc-type auto --socket-
> mem 128,128 --file-prefix pg -- -P -T -m '1.0' -s 0:%s" % self.filename,
> "Pktgen >", 100)
> -        time.sleep(1)
> -        self.tester.send_expect("start all", "Pktgen>")
> +        self.send_pkts(self.filename, dst_mac, src_mac)
>          time.sleep(1)
>          self.check_port_start_stop(testpmd)
> -        # quit pktgen
> -        self.tester.send_expect("stop all", "Pktgen>")
> -        self.tester.send_expect("quit", "# ")
> +        self.tester.send_expect('killall -s INT scapy', '# ')
> +        self.tester.destroy_session(self.send_pks_session)
> +        self.send_pks_session = None
> 
> -    def create_pcap_file(self, filename, dst_mac, src_mac):
> +    def send_pkts(self, filename, dst_mac, src_mac):
>          """
>          Generates a valid PCAP file with the given configuration.
>          """
> @@ -118,6 +74,12 @@ class TestVfPortStartStop(TestCase):
> 
>          wrpcap(filename, pkts)
> 
> +        sendp_fmt = "sendp(pk, iface='%s', loop=1)" % (self.tester_tintf)
> +        self.send_pks_session = self.tester.create_session("scapy1")
> +        self.send_pks_session.send_expect("scapy", ">>>")
> +        self.send_pks_session.send_expect("pk=rdpcap('%s')" % filename,
> ">>>")
> +        self.send_pks_session.send_command(sendp_fmt)
> +
>      def testpmd_reset_status(self, testpmd):
>          """
>          Reset testpmd :stop forward & stop port @@ -242,13 +204,9 @@ class
> TestVfPortStartStop(TestCase):
> 
>      def tear_down_all(self):
> 
> -        self.pktgen_kill()
> -        if getattr(self, 'tester_port_driver', None) and \
> -           getattr(self, 'tester_tx_pci', None):
> -            self.tester.send_expect("./dpdk-devbind.py --bind=%s %s" \
> -                %(self.tester_port_driver, self.tester_tx_pci), "#")
> -            tx_interface = self.tester.get_interface(self.tester_tx_port)
> -            self.tester.send_expect("ifconfig %s up" % tx_interface, "#")
> +        if self.send_pks_session:
> +            self.tester.send_expect('killall -s INT scapy', '# ')
> +            self.tester.destroy_session(self.send_pks_session)
> 
>          if getattr(self, 'vm0', None):
>              self.vm0.stop()
> --
> 2.7.4