Re: [dts] [PATCH V1] tests/vm2vm_virtio_net_perf: update code according plan

["Wang, Yinan" <yinan.wang@intel.com>]

Acked-by: Wang, Yinan <yinan.wang@intel.com>

> -----Original Message-----
> From: Ma, LihongX <lihongx.ma@intel.com>
> Sent: 2019年12月25日 14:35
> To: dts@dpdk.org
> Cc: Wang, Yinan <yinan.wang@intel.com>
> Subject: RE: [dts][PATCH V1] tests/vm2vm_virtio_net_perf: update code
> according plan
> 
> Tested-by: ma,lihong<lihongx.ma@intel.com>
> 
> -----Original Message-----
> From: Ma, LihongX
> Sent: Monday, December 23, 2019 6:42 AM
> To: dts@dpdk.org
> Cc: Wang, Yinan <yinan.wang@intel.com>; Ma, LihongX
> <lihongx.ma@intel.com>
> Subject: [dts][PATCH V1] tests/vm2vm_virtio_net_perf: update code according
> plan
> 
> 1. optimize the code
> 2. add new test cases according to plan
> 
> Signed-off-by: lihong <lihongx.ma@intel.com>
> ---
>  tests/TestSuite_vm2vm_virtio_net_perf.py | 195
> +++++++++++++++++++++----------
>  1 file changed, 131 insertions(+), 64 deletions(-)
> 
> diff --git a/tests/TestSuite_vm2vm_virtio_net_perf.py
> b/tests/TestSuite_vm2vm_virtio_net_perf.py
> index f94b4a3..13640a3 100644
> --- a/tests/TestSuite_vm2vm_virtio_net_perf.py
> +++ b/tests/TestSuite_vm2vm_virtio_net_perf.py
> @@ -32,34 +32,39 @@
>  """
>  DPDK Test suite.
> 
> -Test cases for vhost-user + virtio-net VM2VM tso/tso -zero-copy/ufo/tso_ufo
> capability check.
> +vm2vm split ring and packed ring with tx offload (TSO and UFO) with
> non-mergeable path.
> +vm2vm split ring and packed ring with UFO about virtio-net device capability
> with non-mergeable path.
> +vm2vm split ring and packed ring vhost-user/virtio-net check the
> +payload of large packet is valid with mergeable and non-mergeable dequeue
> zero copy.
> +please use qemu version greater 4.1.94 which support packed feathur to test
> this suite.
>  """
>  import re
>  import time
> -import utils
> +import string
> +import random
>  from virt_common import VM
>  from test_case import TestCase
> +from pmd_output import PmdOutput
> 
> 
>  class TestVM2VMVirtioNetPerf(TestCase):
>      def set_up_all(self):
>          core_config = "1S/4C/1T"
> -        cores_num = len([n for n in self.dut.cores if int(n['socket'])
> -                            == 0])
> -        self.verify(cores_num >= 4,
> +        self.cores_list = self.dut.get_core_list(core_config)
> +        self.verify(len(self.cores_list) >= 4,
>                      "There has not enough cores to test this suite %s" %
>                      self.suite_name)
> -        cores = self.dut.get_core_list(core_config)
> -        self.coremask = utils.create_mask(cores)
> -        self.memory_channel = self.dut.get_memory_channels()
>          self.vm_num = 2
>          self.virtio_ip1 = "1.1.1.2"
>          self.virtio_ip2 = "1.1.1.3"
>          self.vritio_mac1 = "52:54:00:00:00:01"
>          self.vritio_mac2 = "52:54:00:00:00:02"
> -        self.vm_dut = None
>          self.base_dir = self.dut.base_dir.replace('~', '/root')
> +        self.random_string = string.ascii_letters + string.digits
> +        socket_num = len(set([int(core['socket']) for core in self.dut.cores]))
> +        self.socket_mem = ','.join(['2048']*socket_num)
> +        self.vhost = self.dut.new_session(suite="vhost")
> +        self.pmd_vhost = PmdOutput(self.dut, self.vhost)
> 
>      def set_up(self):
>          """
> @@ -67,10 +72,7 @@ class TestVM2VMVirtioNetPerf(TestCase):
>          """
>          self.table_header = ['Mode', '[M|G]bits/sec']
>          self.result_table_create(self.table_header)
> -        self.dut.send_expect("killall -s INT testpmd", "#")
> -        self.dut.send_expect("killall -s INT qemu-system-x86_64", "#")
>          self.dut.send_expect("rm -rf %s/vhost-net*" % self.base_dir, "#")
> -        self.vhost = self.dut.new_session(suite="vhost")
>          self.vm_dut = []
>          self.vm = []
> 
> @@ -82,29 +84,33 @@ class TestVM2VMVirtioNetPerf(TestCase):
>              zerocopy_arg = ",dequeue-zero-copy=1"
>          else:
>              zerocopy_arg = ""
> -        self.command_line = self.dut.target + "/app/testpmd -c %s -n %d " + \
> -            "--socket-mem 2048,2048 --legacy-mem --no-pci
> --file-prefix=vhost " + \
> +        eal_params = self.dut.create_eal_parameters(cores=self.cores_list,
> +                                prefix='vhost', no_pci=True)
> +        self.command_line = self.dut.target + "/app/testpmd %s " + \
> +            "--socket-mem %s --legacy-mem " + \
>              "--vdev 'net_vhost0,iface=%s/vhost-net0,queues=1%s' " + \
>              "--vdev 'net_vhost1,iface=%s/vhost-net1,queues=1%s' " + \
>              "-- -i --nb-cores=1 --txd=1024 --rxd=1024"
> 
>          self.command_line = self.command_line % (
> -                            self.coremask, self.memory_channel,
> self.base_dir,
> +                            eal_params, self.socket_mem, self.base_dir,
>                              zerocopy_arg, self.base_dir, zerocopy_arg)
> -        self.vhost.send_expect(self.command_line, "testpmd> ", 30)
> -        self.vhost.send_expect("start", "testpmd> ", 30)
> +        self.pmd_vhost.execute_cmd(self.command_line, timeout=30)
> +        self.pmd_vhost.execute_cmd('start', timeout=30)
> 
> -    def start_vms(self, mode="normal"):
> +    def start_vms(self, mode="mergeable", packed=False):
>          """
>          start two VM, each VM has one virtio device
>          """
>          setting_args =
> "mrg_rxbuf=off,csum=on,guest_csum=on,host_tso4=on,guest_tso4=on,guest_ec
> n=on"
> -        if mode == "tso":
> -            setting_args += ",gso=on"
> -        elif mode == "ufo":
> +        if mode == "ufo":
>              setting_args += ",guest_ufo=on,host_ufo=on"
> -        elif mode == "normal":
> +        elif mode == "mergeable":
>              setting_args = "mrg_rxbuf=on"
> +        elif mode == "normal":
> +            setting_args = "mrg_rxbuf=off"
> +        if packed is True:
> +            setting_args = "%s,packed=on" % setting_args
> 
>          for i in range(self.vm_num):
>              vm_dut = None
> @@ -121,7 +127,8 @@ class TestVM2VMVirtioNetPerf(TestCase):
>                  if vm_dut is None:
>                      raise Exception("Set up VM ENV failed")
>              except Exception as e:
> -                print utils.RED("Failure for %s" % str(e))
> +                self.logger.error("Failure for %s" % str(e))
> +                raise e
>              vm_dut.restore_interfaces()
> 
>              self.vm_dut.append(vm_dut)
> @@ -138,6 +145,14 @@ class TestVM2VMVirtioNetPerf(TestCase):
>          self.vm_dut[0].send_expect("arp -s %s %s" % (self.virtio_ip2,
> self.vritio_mac2), "#", 10)
>          self.vm_dut[1].send_expect("arp -s %s %s" % (self.virtio_ip1,
> self.vritio_mac1), "#", 10)
> 
> +    def prepare_test_env(self, zerocopy, path_mode, packed_mode=False):
> +        """
> +        start vhost testpmd and qemu, and config the vm env
> +        """
> +        self.start_vhost_testpmd(zerocopy)
> +        self.start_vms(mode=path_mode, packed=packed_mode)
> +        self.config_vm_env()
> +
>      def start_iperf(self, mode):
>          """
>          run perf command between to vms @@ -159,6 +174,7 @@ class
> TestVM2VMVirtioNetPerf(TestCase):
>          """
>          get the iperf test result
>          """
> +        self.vm_dut[0].send_expect('pkill iperf', '# ')
>          self.vm_dut[1].session.copy_file_from("%s/iperf_client.log" %
> self.dut.base_dir)
>          fp = open("./iperf_client.log")
>          fmsg = fp.read()
> @@ -195,9 +211,10 @@ class TestVM2VMVirtioNetPerf(TestCase):
>          self.verify(int(tx_info.group(1)) > 0,
>                      "Port 0 not forward packet greater than 1522")
> 
> -    def send_and_verify(self, mode):
> +    def start_iperf_and_verify_vhost_xstats_info(self, mode):
>          """
> -        start to send packets and verify it
> +        start to send packets and verify vm can received data of iperf
> +        and verify the vhost can received big pkts in testpmd
>          """
>          self.start_iperf(mode)
>          self.get_perf_result()
> @@ -207,7 +224,7 @@ class TestVM2VMVirtioNetPerf(TestCase):
>      def stop_all_apps(self):
>          for i in range(len(self.vm)):
>              self.vm[i].stop()
> -        self.vhost.send_expect("quit", "#", 30)
> +        self.pmd_vhost.quit()
> 
>      def offload_capbility_check(self, vm_client):
>          """
> @@ -230,13 +247,15 @@ class TestVM2VMVirtioNetPerf(TestCase):
>          self.verify(tcp6_info is not None and tcp6_info.group(1) == "on",
>                      "tx-tcp6-segmentation in vm not right")
> 
> -    def check_payload_valid(self):
> +    def check_scp_file_valid_between_vms(self):
>          """
>          scp 64b and 64KB file form VM1 to VM2, check the data is valid
>          """
>          # create a 64b and 64K size file
> +        data = ''
>          for b_size in [64, 65535]:
> -            data = 'x'*b_size
> +            for char in range(b_size):
> +                data += random.choice(self.random_string)
>              self.vm_dut[0].send_expect('echo "%s" > /tmp/payload' % data,
> '# ')
>              # scp this file to vm1
>              out = self.vm_dut[1].send_command('scp
> root@%s:/tmp/payload /root' % self.virtio_ip1, timeout=5) @@ -244,69
> +263,117 @@ class TestVM2VMVirtioNetPerf(TestCase):
>                  self.vm_dut[1].send_command('yes', timeout=3)
>              self.vm_dut[1].send_command(self.vm[0].password, timeout=3)
>              # get the file info in vm1, and check it valid
> -            file_info = self.vm_dut[1].send_expect('cat /root/payload', '# ')
> -            self.verify(file_info == data, 'the file info is invalid as: %s' %
> file_info)
> +            md5_send = self.vm_dut[0].send_expect('md5sum
> /tmp/payload', '# ')
> +            md5_revd = self.vm_dut[1].send_expect('md5sum
> /root/payload', '# ')
> +            md5_send = md5_send[: md5_send.find(' ')]
> +            md5_revd = md5_revd[: md5_revd.find(' ')]
> +            self.verify(md5_send == md5_revd, 'the received file is
> + different with send file')
> 
> -    def test_vhost_vm2vm_tso_iperf(self):
> +    def test_vm2vm_split_ring_iperf_with_tso(self):
>          """
> -        vhost-user + virtio-net VM2VM with tcp traffic
> +        VM2VM split ring vhost-user/virtio-net test with tcp traffic
>          """
> -        self.start_vhost_testpmd(zerocopy=False)
> -        self.start_vms(mode="tso")
> -        self.config_vm_env()
> -        self.send_and_verify(mode="tso")
> -        self.stop_all_apps()
> +        zerocopy = False
> +        path_mode = "tso"
> +        self.prepare_test_env(zerocopy, path_mode)
> +        self.start_iperf_and_verify_vhost_xstats_info(mode="tso")
> 
> -    def test_vhost_vm2vm_tso_iperf_zerocopy(self):
> +    def test_vm2vm_packed_ring_iperf_with_tso(self):
>          """
> -        vhost-user + virtio-net VM2VM zero-copy with tcp traffic
> +        VM2VM packed ring vhost-user/virtio-net test with tcp traffic
>          """
> -        self.start_vhost_testpmd(zerocopy=True)
> -        self.start_vms(mode="tso")
> -        self.config_vm_env()
> -        self.send_and_verify(mode="tso")
> -        self.stop_all_apps()
> +        zerocopy = False
> +        path_mode = "tso"
> +        packed_mode = True
> +        self.prepare_test_env(zerocopy, path_mode, packed_mode)
> +        self.start_iperf_and_verify_vhost_xstats_info(mode="tso")
> 
> -    def test_vhost_vm2vm_ufo_iperf(self):
> +    def test_vm2vm_split_ring_iperf_with_ufo(self):
>          """
> -        vhost-user + virtio-net VM2VM with udp traffic
> +        VM2VM split ring vhost-user/virtio-net test with udp traffic
>          """
> -        self.start_vhost_testpmd(zerocopy=False)
> -        self.start_vms(mode="ufo")
> -        self.config_vm_env()
> -        self.send_and_verify(mode="ufo")
> -        self.stop_all_apps()
> +        zerocopy = False
> +        path_mode = "ufo"
> +        self.prepare_test_env(zerocopy, path_mode)
> +        self.start_iperf_and_verify_vhost_xstats_info(mode="ufo")
> +
> +    def test_vm2vm_packed_ring_iperf_with_ufo(self):
> +        """
> +        VM2VM packed ring vhost-user/virtio-net test with udp traffic
> +        """
> +        zerocopy = False
> +        path_mode = "ufo"
> +        packed_mode = True
> +        self.prepare_test_env(zerocopy, path_mode, packed_mode)
> +        self.start_iperf_and_verify_vhost_xstats_info(mode="ufo")
> 
> -    def test_vhost_vm2vm_ufo_capbility(self):
> +    def test_vm2vm_split_ring_device_capbility(self):
>          """
> -        check virtio-net device capability
> +        Check split ring virtio-net device capability
>          """
>          self.start_vhost_testpmd(zerocopy=False)
>          self.start_vms(mode="ufo")
>          self.offload_capbility_check(self.vm_dut[0])
>          self.offload_capbility_check(self.vm_dut[1])
> -        self.stop_all_apps()
> 
> -    def test_vhost_vm2vm_packet_payload_valid_check(self):
> +    def test_vm2vm_packed_ring_device_capbility(self):
>          """
> -        VM2VM vhost-user/virtio-net test with large packet payload valid
> check
> +        Check split ring virtio-net device capability
>          """
>          self.start_vhost_testpmd(zerocopy=False)
> -        self.start_vms(mode="normal")
> -        self.config_vm_env()
> -        self.check_payload_valid()
> -        self.stop_all_apps()
> +        self.start_vms(mode="ufo", packed=True)
> +        self.offload_capbility_check(self.vm_dut[0])
> +        self.offload_capbility_check(self.vm_dut[1])
> +
> +    def
> test_vm2vm_split_ring_zero_copy_with_mergeable_path_check_large_packet(
> self):
> +        """
> +        VM2VM virtio-net split ring mergeable zero copy test with large
> packet payload valid check
> +        """
> +        zerocopy = True
> +        path_mode = 'mergeable'
> +        self.prepare_test_env(zerocopy, path_mode)
> +        self.check_scp_file_valid_between_vms()
> +
> +    def
> test_vm2vm_split_ring_zero_copy_with_no_mergeable_path_check_large_pac
> ket(self):
> +        """
> +        VM2VM virtio-net split ring non-mergeable zero copy test with large
> packet payload valid check
> +        """
> +        zerocopy = True
> +        path_mode = 'normal'
> +        self.prepare_test_env(zerocopy, path_mode)
> +        self.check_scp_file_valid_between_vms()
> +
> +    def
> test_vm2vm_packed_ring_zero_copy_with_mergeable_path_check_large_pack
> et(self):
> +        """
> +        VM2VM packed ring virtio-net mergeable dequeue zero copy test
> with large packet payload valid check
> +        """
> +        zerocopy = True
> +        path_mode = 'mergeable'
> +        packed_mode = True
> +        self.prepare_test_env(zerocopy, path_mode, packed_mode)
> +        self.check_scp_file_valid_between_vms()
> +
> +    def
> test_vm2vm_packed_ring_zero_copy_with_no_mergeable_path_check_large_
> packet(self):
> +        """
> +        VM2VM packed ring virtio-net non-mergeable dequeue zero copy
> test with large packet payload valid check
> +        """
> +        zerocopy = True
> +        path_mode = 'normal'
> +        packed_mode = True
> +        self.prepare_test_env(zerocopy, path_mode, packed_mode)
> +        self.check_scp_file_valid_between_vms()
> 
>      def tear_down(self):
>          """
>          run after each test case.
>          """
> -        self.dut.send_expect("killall -s INT testpmd", "#")
> -        self.dut.send_expect("killall -s INT qemu-system-x86_64", "#")
> +        self.stop_all_apps()
> +        self.dut.kill_all()
>          time.sleep(2)
> 
>      def tear_down_all(self):
>          """
>          Run after each test suite.
>          """
> -        pass
> +        if getattr(self, 'vhost', None):
> +            self.dut.close_session(self.vhost)
> --
> 2.7.4