diff --git a/tests/TestSuite_vm2vm_virtio_user.py b/tests/TestSuite_vm2vm_virtio_user.py
index 1e4969cb..9dcb7899 100644
--- a/tests/TestSuite_vm2vm_virtio_user.py
+++ b/tests/TestSuite_vm2vm_virtio_user.py
@@ -41,7 +41,6 @@ mergeable, non-mergeable path test
 import re
 import time
 
-import framework.utils as utils
 from framework.packet import Packet
 from framework.pmd_output import PmdOutput
 from framework.test_case import TestCase
@@ -63,7 +62,6 @@ class TestVM2VMVirtioUser(TestCase):
         self.dut_ports = self.dut.get_ports()
         self.cbdma_dev_infos = []
         self.ports_socket = self.dut.get_numa_id(self.dut_ports[0])
-        self.device_str = ""
         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")
@@ -123,25 +121,6 @@ class TestVM2VMVirtioUser(TestCase):
         )
         self.vhost_user_pmd.execute_cmd("set fwd %s" % fwd_mode)
 
-    def lanuch_vhost_testpmd_with_cbdma(self, vdevs=None, iova="va"):
-        """
-        start testpmd with cbdma
-        """
-        eal_params = vdevs + " --iova={}".format(iova)
-        param = "--nb-cores=1 --rxq={} --txq={} --txd={} --rxd={} --no-flush-rx".format(
-            self.queue_num, self.queue_num, self.txd_num, self.txd_num
-        )
-        self.vhost_user_pmd.start_testpmd(
-            cores=self.core_list_vhost,
-            param=param,
-            no_pci=False,
-            ports=[],
-            eal_param=eal_params,
-            prefix="vhost",
-            fixed_prefix=True,
-        )
-        self.vhost_user_pmd.execute_cmd("vhost enable tx all")
-
     @property
     def check_2M_env(self):
         out = self.dut.send_expect(
@@ -211,108 +190,6 @@ class TestVM2VMVirtioUser(TestCase):
         self.virtio_user0_pmd.execute_cmd("set burst 32")
         self.virtio_user0_pmd.execute_cmd("start tx_first 7")
 
-    def start_virtio_testpmd_with_vhost_net0_cbdma(
-        self, path_mode, extern_params, ringsize
-    ):
-        """
-        launch the testpmd as virtio with vhost_net0
-        """
-        eal_params = (
-            " --socket-mem {} --vdev=net_virtio_user0,mac=00:01:02:03:04:05,path=./vhost-net0,queues={},"
-            "{},queue_size={} ".format(
-                self.socket_mem, self.queue_num, path_mode, ringsize
-            )
-        )
-        if self.check_2M_env:
-            eal_params += " --single-file-segments "
-        if "vectorized_path" in self.running_case:
-            eal_params += " --force-max-simd-bitwidth=512"
-        params = "--nb-cores=1 --txd={} --rxd={} {}".format(
-            ringsize, ringsize, extern_params
-        )
-        self.virtio_user0_pmd.start_testpmd(
-            cores=self.core_list_virtio0,
-            param=params,
-            eal_param=eal_params,
-            no_pci=True,
-            ports=[],
-            prefix=self.virtio_prefix_0,
-            fixed_prefix=True,
-        )
-
-    def check_packet_payload_valid_with_cbdma(
-        self,
-        filename,
-        total_pkts_num,
-        pkts_64_num=0,
-        pkts_960_num=0,
-        pkts_4640_num=0,
-        pkts_8k_num=0,
-    ):
-        """
-        check the payload is valid
-        """
-        # stop pdump
-        actual_4640_pkt_num = 0
-        actual_64_pkt_num = 0
-        actual_960_pkt_num = 0
-        actual_8k_pkt_num = 0
-        time.sleep(20)
-        self.pdump_user.send_expect("^c", "# ", 60)
-        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 len(pkts[i]) == 4640:
-                actual_4640_pkt_num += 1
-            elif len(pkts[i]) == 960:
-                actual_960_pkt_num += 1
-            elif len(pkts[i]) == 64:
-                actual_64_pkt_num += 1
-            elif len(pkts[i]) == 8000:
-                actual_8k_pkt_num += 1
-
-        self.verify(
-            pkts_4640_num == actual_4640_pkt_num,
-            f"4640byte packet quantity error,expected value:{pkts_4640_num}"
-            f", actual value : {actual_4640_pkt_num}",
-        )
-
-        self.verify(
-            pkts_960_num == actual_960_pkt_num,
-            f"960byte packet quantity error,expected value:{pkts_960_num}"
-            f", actual value : {actual_960_pkt_num}",
-        )
-        self.verify(
-            pkts_64_num == actual_64_pkt_num,
-            f"64byte packet quantity error,expected value:{pkts_64_num}"
-            f", actual value : {actual_64_pkt_num}",
-        )
-
-        self.verify(
-            pkts_8k_num == actual_8k_pkt_num,
-            f"8k packet quantity error,expected value:{pkts_8k_num}"
-            f", actual value : {actual_8k_pkt_num}",
-        )
-
-    def get_dump_file_of_virtio_user_cbdma(self, path_mode, extern_param, ringsize):
-
-        self.lanuch_vhost_testpmd_with_cbdma(vdevs=self.vdevs)
-        self.start_virtio_testpmd_with_vhost_net1(path_mode, extern_param, ringsize)
-        self.launch_pdump_to_capture_pkt(
-            self.dump_port, self.virtio_prefix_1, self.dump_virtio_pcap
-        )
-        self.start_virtio_testpmd_with_vhost_net0_cbdma(
-            path_mode, extern_param, ringsize
-        )
-
     def send_32_2k_pkts_from_virtio0(self):
         """
         send 32 2k length packets from virtio_user0 testpmd
@@ -881,808 +758,6 @@ class TestVM2VMVirtioUser(TestCase):
         self.logger.info("diff the pcap file of vhost and virtio")
         self.check_vhost_and_virtio_pkts_content()
 
-    def get_cbdma_ports_info_and_bind_to_dpdk(self):
-        """
-        get all cbdma ports
-        """
-        out = self.dut.send_expect(
-            "./usertools/dpdk-devbind.py --status-dev dma", "# ", 30
-        )
-        device_info = out.split("\n")
-        for device in device_info:
-            pci_info = re.search("\s*(0000:\S*:\d*.\d*)", device)
-            if pci_info is not None:
-                dev_info = pci_info.group(1)
-                # the numa id of ioat dev, only add the device which
-                # on same socket with nic dev
-                bus = int(dev_info[5:7], base=16)
-                if bus >= 128:
-                    cur_socket = 1
-                else:
-                    cur_socket = 0
-                if self.ports_socket == cur_socket:
-                    self.cbdma_dev_infos.append(pci_info.group(1))
-        self.verify(
-            len(self.cbdma_dev_infos) >= 8,
-            "There no enough cbdma device to run this suite",
-        )
-        self.device_str = " ".join(self.cbdma_dev_infos[0 : self.cbdma_nic_dev_num])
-        self.dut.send_expect(
-            "./usertools/dpdk-devbind.py --force --bind=%s %s"
-            % (self.drivername, self.device_str),
-            "# ",
-            60,
-        )
-
-    def bind_cbdma_device_to_kernel(self):
-        if self.device_str is not None:
-            self.dut.send_expect("modprobe ioatdma", "# ")
-            self.dut.send_expect(
-                "./usertools/dpdk-devbind.py -u %s" % self.device_str, "# ", 30
-            )
-            self.dut.send_expect(
-                "./usertools/dpdk-devbind.py --force --bind=ioatdma  %s"
-                % self.device_str,
-                "# ",
-                60,
-            )
-
-    def relanuch_vhost_testpmd_iova_pa(self):
-
-        self.vhost_user_pmd.execute_cmd("quit", "#", 60)
-        self.virtio_user1_pmd.execute_cmd("stop")
-        self.virtio_user1_pmd.execute_cmd("clear port stats all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats 0")
-        self.verify("RX-packets: 0" in out, "expect: virtio-user1 RX-packets is 0 ")
-        self.virtio_user1_pmd.execute_cmd("start")
-        self.lanuch_vhost_testpmd_with_cbdma(vdevs=self.vdevs, iova="pa")
-        self.launch_pdump_to_capture_pkt(
-            self.dump_port, self.virtio_prefix_1, self.dump_virtio_pcap
-        )
-
-    def relanuch_vhost_iova_pa_and_virtio(self, path_mode, extern_param, ringsize):
-
-        self.quit_all_testpmd()
-        self.lanuch_vhost_testpmd_with_cbdma(vdevs=self.vdevs, iova="pa")
-        self.start_virtio_testpmd_with_vhost_net1(path_mode, extern_param, ringsize)
-        self.launch_pdump_to_capture_pkt(
-            self.dump_port, self.virtio_prefix_1, self.dump_virtio_pcap
-        )
-        self.start_virtio_testpmd_with_vhost_net0_cbdma(
-            path_mode, extern_param, ringsize
-        )
-
-    def test_vm2vm_virtio_user_split_virtqueue_non_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 12: split virtqueue vm2vm non-mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        pkts_64_num = 64
-        pkts_960_num = 502
-        total_pkts_num = pkts_64_num + pkts_960_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=0,mrg_rxbuf=0,in_order=0"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2 --enable-hw-vlan-strip "
-        # get dump pcap file of virtio
-        # the virtio0 will send imix small pkts
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_251_960byte_and_32_64byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 566" in out and "RX-bytes:  486016" in out,
-            "expect: virtio-user1 RX-packets is 566 and RX-bytes is 486016",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap, total_pkts_num, pkts_64_num, pkts_960_num
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_251_960byte_and_32_64byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 566" in out and "RX-bytes:  486016" in out,
-                "expect: virtio-user1 RX-packets is 566 and RX-bytes is 486016",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap, total_pkts_num, pkts_64_num, pkts_960_num
-            )
-
-    def test_vm2vm_virtio_user_split_virtqueue_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 13: split virtqueue vm2vm mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 54
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=0,mrg_rxbuf=1,in_order=0"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_27_4640byte_and_224_64byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 502" in out and "RX-bytes:  279232" in out,
-            "expect: virtio-user1 RX-packets is 502 and RX-bytes is 279232",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_27_4640byte_and_224_64byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 502" in out and "RX-bytes:  279232" in out,
-                "expect: virtio-user1 RX-packets is 502 and RX-bytes is 279232",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_split_virtqueue_inorder_non_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 14: split virtqueue vm2vm inorder non-mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 0
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=0,mrg_rxbuf=0,in_order=1"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_27_4640byte_and_224_64byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-            "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_27_4640byte_and_224_64byte_pkts()
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-                "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_split_virtqueue_vectorized_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 15: split virtqueue vm2vm vectorized path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 0
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=0,mrg_rxbuf=0,in_order=0,vectorized=1"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_224_64byte_and_27_4640byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-            "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_224_64byte_and_27_4640byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-                "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_split_virtqueue_inorder_mergeable_path_test_non_indirect_desc_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 16: split virtqueue vm2vm inorder mergeable path test non-indirect descriptor with cbdma enable
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_8k_pkts_num = 2
-        large_64_pkts_num = 502
-        total_pkts_num = large_8k_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 256
-        path_mode = "server=1,packed_vq=0,mrg_rxbuf=1,in_order=1"
-        ringsize = 256
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_251_64_and_32_8k_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 504" in out and "RX-bytes:  48128" in out,
-            "expect: virtio-user1 RX-packets is 504 and RX-bytes is 48128",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_8k_num=large_8k_pkts_num,
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa and virtio")
-            self.relanuch_vhost_iova_pa_and_virtio(path_mode, extern_params, ringsize)
-            self.send_251_64_and_32_8k_pkts()
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 504" in out and "RX-bytes:  48128" in out,
-                "expect: virtio-user1 RX-packets is 504 and RX-bytes is 48128",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_8k_num=large_8k_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_split_virtqueue_mergeable_path_test_indirect_desc_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 17: split virtqueue vm2vm mergeable path test indirect descriptor with cbdma enable
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_8k_pkts_num = 10
-        large_64_pkts_num = 502
-        total_pkts_num = large_8k_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 256
-        path_mode = "server=1,packed_vq=0,mrg_rxbuf=1,in_order=0"
-        ringsize = 256
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_251_64_and_32_8k_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 512" in out and "RX-bytes:  112128" in out,
-            "expect: virtio-user1 RX-packets is 512 and RX-bytes is 112128",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_8k_num=large_8k_pkts_num,
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa and virtio")
-            self.relanuch_vhost_iova_pa_and_virtio(path_mode, extern_params, ringsize)
-            self.send_251_64_and_32_8k_pkts()
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 512" in out and "RX-bytes:  112128" in out,
-                "expect: virtio-user1 RX-packets is 512 and RX-bytes is 112128",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_8k_num=large_8k_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_non_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 18: packed virtqueue vm2vm non mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        pkts_64_num = 448
-        pkts_4640_num = 0
-        total_pkts_num = pkts_64_num + pkts_4640_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=1,mrg_rxbuf=0,in_order=0"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_224_64byte_and_27_4640byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-            "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap, total_pkts_num, pkts_64_num, pkts_4640_num
-        )
-
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_224_64byte_and_27_4640byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-                "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap, total_pkts_num, pkts_64_num, pkts_4640_num
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 19: packed virtqueue vm2vm mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 54
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=1,mrg_rxbuf=1,in_order=0"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_27_4640byte_and_224_64byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 502" in out and "RX-bytes:  279232" in out,
-            "expect: virtio-user1 RX-packets is 502 and RX-bytes is 279232",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_27_4640byte_and_224_64byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 502" in out and "RX-bytes:  279232" in out,
-                "expect: virtio-user1 RX-packets is 502 and RX-bytes is 279232",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_inorder_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 20: packed virtqueue vm2vm inorder mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 54
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=1,mrg_rxbuf=1,in_order=1"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_27_4640byte_and_224_64byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 502" in out and "RX-bytes:  279232" in out,
-            "expect: virtio-user1 RX-packets is 502 and RX-bytes is 279232",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_27_4640byte_and_224_64byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 502" in out and "RX-bytes:  279232" in out,
-                "expect: virtio-user1 RX-packets is 502 and RX-bytes is 279232",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_inorder_non_mergeable_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 21: packed virtqueue vm2vm inorder non-mergeable path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 0
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=1,mrg_rxbuf=0,in_order=1"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_224_64byte_and_27_4640byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-            "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_224_64byte_and_27_4640byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-                "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_vectorized_path_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 22: packed virtqueue vm2vm vectorized path multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 0
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1"
-        ringsize = 4096
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_224_64byte_and_27_4640byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-            "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_224_64byte_and_27_4640byte_pkts()
-
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-                "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_vectorized_path_ringsize_not_power_of_2_multi_queues_check_chain_pkts_with_cbdma(
-        self,
-    ):
-        """
-        Test Case 23: packed virtqueue vm2vm vectorized path ringsize_not_power_of_2 multi-queues payload check with cbdma enabled
-        """
-        self.cbdma_nic_dev_num = 4
-        self.get_cbdma_ports_info_and_bind_to_dpdk()
-        large_4640_pkts_num = 0
-        large_64_pkts_num = 448
-        total_pkts_num = large_4640_pkts_num + large_64_pkts_num
-        self.queue_num = 2
-        self.txd_num = 4096
-        path_mode = "server=1,packed_vq=1,mrg_rxbuf=0,in_order=1,vectorized=1"
-        ringsize = 4097
-        extern_params = "--rxq=2 --txq=2"
-
-        self.logger.info("check pcap file info about virtio")
-        self.vdevs = (
-            f"--vdev 'eth_vhost0,iface=vhost-net0,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[0]};txq1@{self.cbdma_dev_infos[1]}]' "
-            f"--vdev 'eth_vhost1,iface=vhost-net1,queues=2,client=1,dmas=[txq0@{self.cbdma_dev_infos[2]};txq1@{self.cbdma_dev_infos[3]}]'"
-        )
-
-        self.get_dump_file_of_virtio_user_cbdma(path_mode, extern_params, ringsize)
-        self.send_224_64byte_and_27_4640byte_pkts()
-        self.vhost_user_pmd.execute_cmd("start")
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-            "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_4640_num=large_4640_pkts_num,
-        )
-        if not self.check_2M_env:
-            self.logger.info("relanuch vhost testpmd iova pa")
-            self.relanuch_vhost_testpmd_iova_pa()
-            self.send_224_64byte_and_27_4640byte_pkts()
-            self.vhost_user_pmd.execute_cmd("start")
-            self.vhost_user_pmd.execute_cmd("stop")
-            out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-            self.verify(
-                "RX-packets: 448" in out and "RX-bytes:  28672" in out,
-                "expect: virtio-user1 RX-packets is 448 and RX-bytes is 28672",
-            )
-            self.check_packet_payload_valid_with_cbdma(
-                self.dump_virtio_pcap,
-                total_pkts_num,
-                pkts_64_num=large_64_pkts_num,
-                pkts_4640_num=large_4640_pkts_num,
-            )
-
-    def test_vm2vm_virtio_user_packed_virtqueue_vectorized_path_test_indirect_desc(
-        self,
-    ):
-        """
-        Test Case 24: packed virtqueue vm2vm vectorized-tx path multi-queues test indirect descriptor
-        """
-        large_8k_pkts_num = 5
-        large_64_pkts_num = 251
-        total_pkts_num = large_8k_pkts_num + large_64_pkts_num
-        self.queue_num = 1
-        self.txd_num = 256
-        path_mode = "packed_vq=1,mrg_rxbuf=1,in_order=1,vectorized=1"
-        ringsize = 256
-        extern_params = ""
-
-        self.logger.info("check pcap file info about virtio")
-        self.get_dump_file_of_virtio_user(path_mode, extern_params, ringsize)
-        # execute stop and port stop all to avoid testpmd tail_pkts issue.
-        self.vhost_user_pmd.execute_cmd("stop")
-        self.vhost_user_pmd.execute_cmd("port stop all")
-        out = self.virtio_user1_pmd.execute_cmd("show port stats all")
-        self.verify(
-            "RX-packets: 256" in out and "RX-bytes:  56064" in out,
-            "expect: virtio-user1 RX-packets is 256 and RX-bytes is 56064",
-        )
-        self.check_packet_payload_valid_with_cbdma(
-            self.dump_virtio_pcap,
-            total_pkts_num,
-            pkts_64_num=large_64_pkts_num,
-            pkts_8k_num=large_8k_pkts_num,
-        )
-
     def close_all_session(self):
         if getattr(self, "vhost_user", None):
             self.dut.close_session(self.vhost_user)
@@ -1698,7 +773,6 @@ class TestVM2VMVirtioUser(TestCase):
         Run after each test case.
         """
         self.quit_all_testpmd()
-        self.bind_cbdma_device_to_kernel()
         self.dut.kill_all()
         time.sleep(2)
 
