Re: [dts] [PATCH V1] tests: add test suite vm2vm virtio user

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

applied

> -----Original Message-----
> From: dts [mailto:dts-bounces@dpdk.org] On Behalf Of lihong
> Sent: Thursday, December 26, 2019 3:07 AM
> To: dts@dpdk.org
> Cc: Wang, Yinan <yinan.wang@intel.com>; Ma, LihongX
> <lihongx.ma@intel.com>
> Subject: [dts] [PATCH V1] tests: add test suite vm2vm virtio user
> 
> Signed-off-by: lihong <lihongx.ma@intel.com>
> ---
>  tests/TestSuite_vm2vm_virtio_user.py | 538
> +++++++++++++++++++++++++++++++++++
>  1 file changed, 538 insertions(+)
>  create mode 100644 tests/TestSuite_vm2vm_virtio_user.py
> 
> diff --git a/tests/TestSuite_vm2vm_virtio_user.py
> b/tests/TestSuite_vm2vm_virtio_user.py
> new file mode 100644
> index 0000000..17bee0e
> --- /dev/null
> +++ b/tests/TestSuite_vm2vm_virtio_user.py
> @@ -0,0 +1,538 @@
> +# BSD LICENSE
> +#
> +# Copyright(c) <2019> Intel Corporation.
> +# All rights reserved.
> +#
> +# Redistribution and use in source and binary forms, with or without #
> +modification, are permitted provided that the following conditions #
> +are met:
> +#
> +#   * Redistributions of source code must retain the above copyright
> +#     notice, this list of conditions and the following disclaimer.
> +#   * Redistributions in binary form must reproduce the above copyright
> +#     notice, this list of conditions and the following disclaimer in
> +#     the documentation and/or other materials provided with the
> +#     distribution.
> +#   * Neither the name of Intel Corporation nor the names of its
> +#     contributors may be used to endorse or promote products derived
> +#     from this software without specific prior written permission.
> +#
> +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
> CONTRIBUTORS #
> +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
> #
> +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
> FOR #
> +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
> COPYRIGHT #
> +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
> INCIDENTAL, #
> +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
> NOT #
> +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
> USE, #
> +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
> ON ANY #
> +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
> #
> +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
> THE USE #
> +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
> DAMAGE.
> +
> +"""
> +DPDK Test suite.
> +
> +Test cases for vm2vm virtio-user
> +This suite include split virtqueue vm2vm in-order mergeable, in-order
> +non-mergeable, mergeable, non-mergeable, vector_rx path test and packed
> +virtqueue vm2vm in-order mergeable, in-order non-mergeable, mergeable,
> +non-mergeable path test """
> +import re
> +import time
> +import utils
> +from test_case import TestCase
> +from packet import Packet
> +from pmd_output import PmdOutput
> +
> +
> +class TestVM2VMVirtioUser(TestCase):
> +    def set_up_all(self):
> +        self.memory_channel = self.dut.get_memory_channels()
> +        self.dump_virtio_pcap = "/tmp/pdump-virtio-rx.pcap"
> +        self.dump_vhost_pcap = "/tmp/pdump-vhost-rx.pcap"
> +        self.vhost_prefix = 'vhost'
> +        self.virtio_prefix = 'virtio'
> +        socket_num = len(set([int(core['socket']) for core in self.dut.cores]))
> +        self.socket_mem = ','.join(['1024']*socket_num)
> +        self.get_core_list()
> +        self.rebuild_flag = False
> +        self.config_value = 'CONFIG_RTE_LIBRTE_PMD_PCAP'
> +        self.enable_pcap_lib_in_dpdk(self.dut)
> +
> +    def set_up(self):
> +        """
> +        run before each test case.
> +        """
> +        self.dut.send_expect("rm -rf ./vhost-net*", "#")
> +        self.dut.send_expect("rm -rf %s" % self.dump_virtio_pcap, "#")
> +        self.dut.send_expect("rm -rf %s" % self.dump_vhost_pcap, "#")
> +
> +    def get_core_list(self):
> +        """
> +        create core mask
> +        """
> +        self.core_config = "1S/6C/1T"
> +        self.cores_list = self.dut.get_core_list(self.core_config)
> +        self.verify(len(self.cores_list) >= 6, 'There no enough cores to run this
> suite')
> +        self.core_list_vhost = self.cores_list[0:2]
> +        self.core_list_virtio0 = self.cores_list[2:4]
> +        self.core_list_virtio1 = self.cores_list[4:6]
> +
> +        self.vhost_user = self.dut.new_session(suite="vhost-user")
> +        self.virtio_user0 = self.dut.new_session(suite="virtio-user0")
> +        self.virtio_user1 = self.dut.new_session(suite="virtio-user1")
> +        self.pdump_session = self.dut.new_session(suite="pdump")
> +        self.pmd_vhost = PmdOutput(self.dut, self.vhost_user)
> +        self.pmd_virtio0 = PmdOutput(self.dut, self.virtio_user0)
> +        self.pmd_virtio1 = PmdOutput(self.dut, self.virtio_user1)
> +
> +    def enable_pcap_lib_in_dpdk(self, client_dut):
> +        """
> +        enable pcap lib in dpdk code and recompile
> +        """
> +        out = self.dut.send_command('cat config/common_base', timeout=3)
> +        pcap = re.search('%s=(\S*)' % self.config_value, out)
> +        self.verify(pcap is not None, 'The config:%s can not find in
> common_base' % self.config_value)
> +        default_value = pcap.group(1)
> +        if str.lower(default_value) != 'y':
> +            client_dut.send_expect("sed -i 's/%s=n$/%s=y/'
> config/common_base" % (
> +                    self.config_value, self.config_value), '# ')
> +            client_dut.build_install_dpdk(self.target)
> +            self.rebuild_flag = True
> +
> +    def disable_pcap_lib_in_dpdk(self, client_dut):
> +        """
> +        reset pcap lib in dpdk and recompile
> +        """
> +        if self.rebuild_flag is True:
> +            client_dut.send_expect("sed -i 's/%s=y$/%s=n/'
> config/common_base" %
> +                        (self.config_value, self.config_value), "#")
> +            client_dut.build_install_dpdk(self.target)
> +
> +    def launch_vhost_testpmd(self, vdev_num, fixed_prefix=False,
> fwd_mode='io'):
> +        eal_params =
> self.dut.create_eal_parameters(cores=self.core_list_vhost,
> +                    no_pci=True, prefix=self.vhost_prefix, fixed_prefix=fixed_prefix)
> +        vdev_params = ''
> +        for i in range(vdev_num):
> +            vdev_params += "--vdev
> + 'net_vhost%d,iface=./vhost-net%d,queues=1' " % (i, i)
> +
> +        self.command_line = self.dut.target + '/app/testpmd %s ' + \
> +            '--socket-mem %s %s -- -i --nb-cores=1 --no-flush-rx'
> +
> +        self.command_line = self.command_line % (
> +                            eal_params, self.socket_mem, vdev_params)
> +        self.pmd_vhost.execute_cmd(self.command_line, timeout=30)
> +        self.pmd_vhost.execute_cmd('set fwd %s' % fwd_mode)
> +
> +    def start_virtio_testpmd_with_vhost_net1(self, path_mode,
> extern_params=''):
> +        """
> +        launch the testpmd as virtio with vhost_net1
> +        """
> +        eal_params =
> self.dut.create_eal_parameters(cores=self.core_list_virtio1,
> +                no_pci=True, prefix=self.virtio_prefix, fixed_prefix=True)
> +        vdev_params = '--
> vdev=net_virtio_user1,mac=00:01:02:03:04:05,path=./vhost-
> net1,queues=1,%s ' % path_mode
> +        command_line = self.dut.target + "/app/testpmd %s " + \
> +            "--socket-mem %s %s -- -i --nb-cores=1 --txd=256 --rxd=256 %s"
> +        command_line = command_line % (eal_params, self.socket_mem,
> +                                    vdev_params, extern_params)
> +        self.pmd_virtio1.execute_cmd(command_line, timeout=30)
> +        self.pmd_virtio1.execute_cmd('set fwd rxonly')
> +        self.pmd_virtio1.execute_cmd('start')
> +
> +    def start_virtio_testpmd_with_vhost_net0(self, path_mode,
> extern_params=''):
> +        """
> +        launch the testpmd as virtio with vhost_net0
> +        and start to send 251 small packets with diff burst
> +        """
> +        eal_params =
> self.dut.create_eal_parameters(cores=self.core_list_virtio0,
> +                no_pci=True, prefix='virtio0')
> +        vdev_params = '--
> vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-
> net0,queues=1,%s ' % path_mode
> +        command_line = self.dut.target + '/app/testpmd %s ' + \
> +            '--socket-mem %s %s -- -i --nb-cores=1 --txd=256 --rxd=256 %s'
> +        command_line = command_line % (eal_params, self.socket_mem,
> +                                vdev_params, extern_params)
> +
> +        self.pmd_virtio0.execute_cmd(command_line, timeout=30)
> +        self.pmd_virtio0.execute_cmd('set burst 1')
> +        self.pmd_virtio0.execute_cmd('start tx_first 27')
> +        self.pmd_virtio0.execute_cmd('stop')
> +        self.pmd_virtio0.execute_cmd('set burst 32')
> +        self.pmd_virtio0.execute_cmd('start tx_first 7')
> +
> +    def resend_32_large_pkt_from_virtio0(self):
> +        self.pmd_virtio0.execute_cmd('stop')
> +        self.pmd_virtio0.execute_cmd('set burst 32')
> +        self.pmd_virtio0.execute_cmd('set txpkts 2000')
> +        self.pmd_virtio0.execute_cmd('start tx_first 1')
> +
> +    def launch_pdump_to_capture_pkt(self, dump_port, file_prefix,
> filename):
> +        """
> +        launch pdump app with dump_port and file_prefix
> +        the pdump app should start after testpmd started
> +        if dump the vhost-testpmd, the vhost-testpmd should started before
> launch pdump
> +        if dump the virtio-testpmd, the virtio-testpmd should started before
> launch pdump
> +        """
> +        eal_params = self.dut.create_eal_parameters(cores='Default',
> +                        prefix=file_prefix, fixed_prefix=True)
> +        command_line = self.target + "/app/dpdk-pdump %s -v -- " + \
> +                    "--pdump  '%s,queue=*,rx-dev=%s,mbuf-size=8000'"
> +        self.pdump_session.send_expect(command_line % (eal_params,
> + dump_port, filename), 'Port')
> +
> +    def get_dump_file_of_virtio_user(self, path_mode, extern_param=''):
> +        """
> +        get the dump file of virtio user
> +        the virtio_user0 always send 251 small pkts + 32 large pkts(8k) to verify
> +        how many pkts can received by virtio1
> +        """
> +        dump_port = 'device_id=net_virtio_user1'
> +        self.launch_vhost_testpmd(vdev_num=2)
> +        self.start_virtio_testpmd_with_vhost_net1(path_mode, extern_param)
> +        self.launch_pdump_to_capture_pkt(dump_port, self.virtio_prefix,
> self.dump_virtio_pcap)
> +        # the virtio0 will send 251 small pkts
> +        self.start_virtio_testpmd_with_vhost_net0(path_mode, extern_param)
> +        # then send 32 large pkts
> +        self.pmd_virtio0.execute_cmd('stop')
> +        self.pmd_virtio0.execute_cmd('set burst 32')
> +        self.pmd_virtio0.execute_cmd('set txpkts 2000,2000,2000,2000')
> +        self.pmd_virtio0.execute_cmd('start tx_first 1')
> +        # packet will fwd after vhost testpmd start
> +        self.pmd_vhost.execute_cmd('start')
> +
> +    def get_dump_file_of_vhost_user(self, path_mode, extern_param=''):
> +        """
> +        get the dump file of vhost testpmd
> +        the virtio0 will alway send 251 small pkts + some large pkts(depend on
> +        diff path_mode send diff pkts num) to verify how many pkts can
> received by vhost
> +        """
> +        dump_port = 'port=0'
> +        self.launch_vhost_testpmd(vdev_num=1, fixed_prefix=True,
> fwd_mode='rxonly')
> +        self.pmd_vhost.execute_cmd('start')
> +        self.launch_pdump_to_capture_pkt(dump_port, self.vhost_prefix,
> self.dump_vhost_pcap)
> +        # the virtio0 send 251 small pkts
> +        self.start_virtio_testpmd_with_vhost_net0(path_mode, extern_param)
> +        # if the path_mode is mergeable, then send large pkt to verify
> +        # and packed mergeable and split mergeable is diff about large pkt
> +        # in packed mergeable, 1 large pkt will occupies 5 ring, so send 1 large
> pkt to verify
> +        # in split mergeable, 1 large pkt will occupied 1 ring, so send 5 large pkt
> to verify
> +        mergeable = re.search('mrg_rxbuf\s*=\s*1', path_mode)
> +        split = re.search('packed_vq\s*=\s*0', path_mode)
> +        no_inorder = re.search('in_order\s*=\s*0', path_mode)
> +        pkt_num = 1
> +        if split and mergeable and no_inorder:
> +            pkt_num = 5
> +        if mergeable:
> +            self.pmd_virtio0.execute_cmd('stop')
> +            self.pmd_virtio0.execute_cmd('set burst %d' % pkt_num)
> +            self.pmd_virtio0.execute_cmd('set txpkts 2000,2000,2000,2000')
> +            self.pmd_virtio0.execute_cmd('start tx_first 1')
> +
> +    def check_packet_payload_valid(self, filename, small_pkts_num,
> large_8k_pkts_num, large_2k_pkts_num):
> +        """
> +        check the payload is valid
> +        """
> +        # stop pdump
> +        total_pkts_num = small_pkts_num + large_8k_pkts_num +
> large_2k_pkts_num
> +        time.sleep(2)
> +        self.pdump_session.send_expect('^c', '# ', 60)
> +        # quit testpmd
> +        self.quit_all_testpmd()
> +        time.sleep(2)
> +        self.dut.session.copy_file_from(src="%s" % filename, dst="%s" %
> filename)
> +        pkt = Packet()
> +        pkts = pkt.read_pcapfile(filename)
> +        self.verify(pkts is not None and len(pkts) == total_pkts_num,
> +                        "The virtio/vhost do not capture all the packets"
> +                        "expect pkt num is: %d, actual pkt num is: %d" %
> (total_pkts_num, len(pkts)))
> +        for i in range(len(pkts)):
> +            if i < small_pkts_num:
> +                pkt_len = 64
> +            elif i >= small_pkts_num and i < small_pkts_num+large_8k_pkts_num:
> +                pkt_len = 8000
> +            else:
> +                pkt_len = 2000
> +            self.verify(len(pkts[i]) == pkt_len, 'the received pkts len is wrong,'
> +                    'the received pkt len is: %d, expect pkt len is:
> + %d' % (len(pkts[i]), pkt_len))
> +
> +    def check_vhost_and_virtio_pkts_content(self):
> +        """
> +        vhost received pkts in self.dump_vhost_pcap, virtio received pkts
> self.dump_virtio_pcap
> +        check headers and payload of all pkts are same.
> +        """
> +        pk_rx_virtio = Packet()
> +        pk_rx_vhost = Packet()
> +        pk_rx_virtio.read_pcapfile(self.dump_virtio_pcap)
> +        pk_rx_vhost.read_pcapfile(self.dump_vhost_pcap)
> +        # check the headers and payload is same of vhost and virtio
> +        for i in range(len(pk_rx_virtio)):
> +            self.verify(pk_rx_virtio[i].haslayer('Raw'), 'The pkt index %d, virtio pkt
> has no layer Raw' % i)
> +            self.verify(pk_rx_vhost[i].haslayer('Raw'), 'The pkt index %d, vhost
> pkt has no layer Raw' % i)
> +            self.verify(pk_rx_virtio[i].haslayer('UDP'), 'The pkt index %d, virtio pkt
> has no layer UDP' % i)
> +            self.verify(pk_rx_vhost[i].haslayer('UDP'), 'The pkt index %d, vhost
> pkt has no layer UDP' % i)
> +            rx_virtio_load = pk_rx_virtio[i]['Raw'].load
> +            rx_vhost_load = pk_rx_vhost[i]['Raw'].load
> +            rx_virtio_head = pk_rx_virtio[i]['UDP'].remove_payload()
> +            rx_vhost_head = pk_rx_vhost[i]['UDP'].remove_payload()
> +            # check header is same
> +            self.verify(pk_rx_virtio[i] == pk_rx_vhost[i], 'the head is different on
> index: %d' % i + \
> +                    'virtio head: %s, vhost head: %s' % (pk_rx_virtio[i].show,
> pk_rx_vhost[i].show()))
> +            # check payload is same
> +            self.verify(len(rx_virtio_load) == len(rx_vhost_load),
> +                    'the len is diff between virtio pcap and vhost pcap,'
> +                    'virtio len:%d, vhost len: %d' % (len(rx_virtio_load),
> len(rx_vhost_load)))
> +            diff_list = [s for s in range(len(rx_virtio_load)) if rx_virtio_load[s] !=
> rx_vhost_load[s]]
> +            self.verify(len(diff_list) == 0, 'there have some diff between the load
> of virtio and vhost pcap' + \
> +                'pkt index is: %d, the load index include %s' % (i,
> + diff_list))
> +
> +    def quit_all_testpmd(self):
> +        self.pmd_vhost.quit()
> +        self.pmd_virtio0.quit()
> +        self.pmd_virtio1.quit()
> +        self.pdump_session.send_expect('^c', '# ', 60)
> +
> +    def test_vm2vm_virtio_user_packed_virtqueue_mergeable_path(self):
> +        """
> +        packed virtqueue vm2vm mergeable path test
> +        about packed virtqueue path, the 8k length pkt will occupies 5 ring,
> +        2000,2000,2000,2000 will need 4 consequent ring, still need one ring
> put header
> +        so, as the rxt=256, if received pkts include 8k chain pkt, it will received
> up to 252 pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 1
> +        large_2k_pkts_num = 32
> +        path_mode = 'packed_vq=1,mrg_rxbuf=1,in_order=0'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 252 pkts
> +        # then resend 32 large pkts, all will received
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.resend_32_large_pkt_from_virtio0()
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.resend_32_large_pkt_from_virtio0()
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def
> test_vm2vm_virtio_user_packed_virtqueue_inorder_mergeable_path(self):
> +        """
> +        packed virtqueue vm2vm inorder mergeable path test
> +        about packed virtqueue path, the 8k length pkt will occupies 5 ring,
> +        2000,2000,2000,2000 will need 4 consequent ring, still need one ring
> put header
> +        so, as the rxt=256, if received pkts include 8k chain pkt, it will received
> up to 252 pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 1
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=1,mrg_rxbuf=1,in_order=1'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 252 pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def test_vm2vm_virtio_user_packed_virtqueue_no_mergeable_path(self):
> +        """
> +        packed virtqueue vm2vm non-mergeable path test
> +        about non-mergeable path, it can not received large pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 0
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=1,mrg_rxbuf=0,in_order=0'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 251 pkts
> +        # the no-mergeable path can not received large pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def
> test_vm2vm_virtio_user_packed_virtqueue_inorder_no_mergeable_path(sel
> f):
> +        """
> +        packed virtqueue vm2vm inorder non-mergeable path test
> +        about non-mergeable path, it can not received large pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 0
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=1,mrg_rxbuf=0,in_order=1'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 251 pkts
> +        # the no-mergeable path can not received large pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def test_vm2vm_virtio_user_split_virtqueue_mergeable_path(self):
> +        """
> +        split virtqueue vm2vm mergeable path test
> +        about split virtqueue path, the 8k length pkt will occupies 1 ring,
> +        so, as the rxt=256, if received pkts include 8k chain pkt, also will
> received up to 256 pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 5
> +        large_2k_pkts_num = 32
> +        path_mode = 'packed_vq=0,mrg_rxbuf=1,in_order=0'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 256 pkts
> +        # then virtio send 32 large pkts, the virtio will all received
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.resend_32_large_pkt_from_virtio0()
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.resend_32_large_pkt_from_virtio0()
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def
> test_vm2vm_virtio_user_split_virtqueue_inorder_mergeable_path(self):
> +        """
> +        split virtqueue vm2vm inorder mergeable path test
> +        about split virtqueue path, the 8k length pkt will occupies 5 ring,
> +        2000,2000,2000,2000 will need 4 consequent ring, still need one ring
> put header
> +        so, as the rxt=256, if received pkts include 8k chain pkt, it will received
> up to 252 pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 1
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=0,mrg_rxbuf=1,in_order=1'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 252 pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def test_vm2vm_virtio_user_split_virtqueue_no_mergeable_path(self):
> +        """
> +        split virtqueue vm2vm non-mergeable path test
> +        about non-mergeable path, it can not received large pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 0
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=0,mrg_rxbuf=0,in_order=0'
> +        extern_params = '--enable-hw-vlan-strip'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 251 pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode, extern_params)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode, extern_params)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def
> test_vm2vm_virtio_user_split_virtqueue_inorder_no_mergeable_path(self):
> +        """
> +        split virtqueue vm2vm inorder non-mergeable path test
> +        about non-mergeable path, it can not received large pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 0
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=0,mrg_rxbuf=0,in_order=1'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 251 pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def test_vm2vm_virtio_user_split_virtqueue_vector_rx_path(self):
> +        """
> +        split virtqueue vm2vm vector_rx path test
> +        about vector_rx path, it can not received large pkts
> +        """
> +        small_pkts_num = 251
> +        large_8k_pkts_num = 0
> +        large_2k_pkts_num = 0
> +        path_mode = 'packed_vq=0,mrg_rxbuf=0,in_order=0'
> +        # get dump pcap file of virtio
> +        # the virtio0 will send 283 pkts, but the virtio only will received 251 pkts
> +        self.logger.info('check pcap file info about virtio')
> +        self.get_dump_file_of_virtio_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_virtio_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        # get dump pcap file of vhost
> +        self.logger.info('check pcap file info about vhost')
> +        self.get_dump_file_of_vhost_user(path_mode)
> +        self.check_packet_payload_valid(self.dump_vhost_pcap,
> + small_pkts_num, large_8k_pkts_num, large_2k_pkts_num)
> +
> +        self.logger.info('diff the pcap file of vhost and virtio')
> +        self.check_vhost_and_virtio_pkts_content()
> +
> +    def close_all_session(self):
> +        if getattr(self, 'vhost_user', None):
> +            self.dut.close_session(self.vhost_user)
> +        if getattr(self, 'virtio-user0', None):
> +            self.dut.close_session(self.virtio-user0)
> +        if getattr(self, 'virtio-user1', None):
> +            self.dut.close_session(self.virtio-user1)
> +        if getattr(self, 'pdump_session', None):
> +            self.dut.close_session(self.pdump_session)
> +
> +    def tear_down(self):
> +        #
> +        # Run after each test case.
> +        #
> +        self.dut.kill_all()
> +        time.sleep(2)
> +
> +    def tear_down_all(self):
> +        """
> +        Run after each test suite.
> +        """
> +        self.disable_pcap_lib_in_dpdk(self.dut)
> +        self.close_all_session()
> --
> 2.7.4