diff --git a/tests/TestSuite_vhost_user_interrupt.py b/tests/TestSuite_vhost_user_interrupt.py
index cba66294..cf55e382 100644
--- a/tests/TestSuite_vhost_user_interrupt.py
+++ b/tests/TestSuite_vhost_user_interrupt.py
@@ -56,13 +56,8 @@ class TestVhostUserInterrupt(TestCase):
         self.app_testpmd_path = self.dut.apps_name["test-pmd"]
         self.testpmd_name = self.app_testpmd_path.split("/")[-1]
         self.l3fwdpower_name = self.app_l3fwd_power_path.split("/")[-1]
-
         self.dut_ports = self.dut.get_ports()
         self.ports_socket = self.dut.get_numa_id(self.dut_ports[0])
-        # get cbdma device
-        self.cbdma_dev_infos = []
-        self.dmas_info = None
-        self.device_str = None
 
     def set_up(self):
         """
@@ -93,7 +88,7 @@ class TestVhostUserInterrupt(TestCase):
         self.core_list_virtio = core_list[0 : self.queues + 1]
         self.core_list_l3fwd = core_list[self.queues + 1 : need_num]
 
-    def lanuch_virtio_user(self, packed=False, cbdma=False):
+    def lanuch_virtio_user(self, packed=False):
         """
         launch virtio-user with server mode
         """
@@ -104,18 +99,13 @@ class TestVhostUserInterrupt(TestCase):
             else "net_virtio_user0,mac=%s,path=./vhost-net,server=1,queues=%d,packed_vq=1"
             % (self.vmac, self.queues)
         )
-        if cbdma == True:
-            eal_params = self.dut.create_eal_parameters(
-                cores=self.core_list_virtio, prefix="virtio", no_pci=True, vdevs=[vdev]
-            )
-        else:
-            eal_params = self.dut.create_eal_parameters(
-                cores=self.core_list_virtio,
-                prefix="virtio",
-                no_pci=True,
-                ports=[self.pci_info],
-                vdevs=[vdev],
-            )
+        eal_params = self.dut.create_eal_parameters(
+            cores=self.core_list_virtio,
+            prefix="virtio",
+            no_pci=True,
+            ports=[self.pci_info],
+            vdevs=[vdev],
+        )
         if self.check_2M_env:
             eal_params += " --single-file-segments"
         para = " -- -i --rxq=%d --txq=%d --rss-ip" % (self.queues, self.queues)
@@ -124,59 +114,6 @@ class TestVhostUserInterrupt(TestCase):
             command_line_client, "waiting for client connection...", 120
         )
 
-    def get_cbdma_ports_info_and_bind_to_dpdk(self, cbdma_num):
-        """
-        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) >= cbdma_num,
-            "There no enough cbdma device to run this suite",
-        )
-        used_cbdma = self.cbdma_dev_infos[0:cbdma_num]
-        dmas_info = ""
-        for dmas in used_cbdma:
-            number = used_cbdma.index(dmas)
-            dmas = "txq{}@{};".format(number, dmas)
-            dmas_info += dmas
-        self.dmas_info = dmas_info[:-1]
-        self.device_str = " ".join(used_cbdma)
-        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,
-            )
-
     @property
     def check_2M_env(self):
         out = self.dut.send_expect(
@@ -184,7 +121,7 @@ class TestVhostUserInterrupt(TestCase):
         )
         return True if out == "2048" else False
 
-    def lanuch_l3fwd_power(self, cbdma=False):
+    def lanuch_l3fwd_power(self):
         """
         launch l3fwd-power with a virtual vhost device
         """
@@ -199,23 +136,10 @@ class TestVhostUserInterrupt(TestCase):
             self.verify_info.append(info)
 
         example_cmd = self.app_l3fwd_power_path + " "
-        if cbdma == True:
-            example_cmd += " --log-level=9 "
-            self.get_cbdma_ports_info_and_bind_to_dpdk(4)
-            vdev = "'net_vhost0,iface=vhost-net,queues=%d,client=1,dmas=[%s]'" % (
-                self.queues,
-                self.dmas_info,
-            )
-            eal_params = self.dut.create_eal_parameters(
-                cores=self.core_list_l3fwd,
-                ports=self.cbdma_dev_infos[0:4],
-                vdevs=[vdev],
-            )
-        else:
-            vdev = "net_vhost0,iface=vhost-net,queues=%d,client=1" % self.queues
-            eal_params = self.dut.create_eal_parameters(
-                cores=self.core_list_l3fwd, no_pci=True, vdevs=[vdev]
-            )
+        vdev = "net_vhost0,iface=vhost-net,queues=%d,client=1" % self.queues
+        eal_params = self.dut.create_eal_parameters(
+            cores=self.core_list_l3fwd, no_pci=True, vdevs=[vdev]
+        )
         para = " -- -p 0x1 --parse-ptype 1 --config '%s' --interrupt-only" % config_info
         command_line_client = example_cmd + eal_params + para
         self.vhost.get_session_before(timeout=2)
@@ -315,32 +239,6 @@ class TestVhostUserInterrupt(TestCase):
         self.virtio_user.send_expect("set fwd txonly", "testpmd> ", 20)
         self.send_and_verify()
 
-    def test_wake_up_split_ring_vhost_user_core_with_l3fwd_power_sample_when_multi_queues_enabled_and_cbdma_enabled(
-        self,
-    ):
-        """
-        Test Case5: Wake up split ring vhost-user cores with l3fwd-power sample when multi queues and cbdma are enabled
-        """
-        self.queues = 4
-        self.get_core_list()
-        self.lanuch_virtio_user(cbdma=True)
-        self.lanuch_l3fwd_power(cbdma=True)
-        self.virtio_user.send_expect("set fwd txonly", "testpmd> ", 20)
-        self.send_and_verify()
-
-    def test_wake_up_packed_ring_vhost_user_core_with_l3fwd_power_sample_when_multi_queues_enabled_and_cbdma_enabled(
-        self,
-    ):
-        """
-        Test Case6: Wake up packed ring vhost-user cores with l3fwd-power sample when multi queues and cbdma are enabled
-        """
-        self.queues = 4
-        self.get_core_list()
-        self.lanuch_virtio_user(packed=True, cbdma=True)
-        self.lanuch_l3fwd_power(cbdma=True)
-        self.virtio_user.send_expect("set fwd txonly", "testpmd> ", 20)
-        self.send_and_verify()
-
     def tear_down(self):
         """
         Run after each test case.
@@ -349,7 +247,6 @@ class TestVhostUserInterrupt(TestCase):
         self.dut.send_expect("killall %s" % self.l3fwdpower_name, "#")
         self.dut.send_expect("killall -s INT %s" % self.testpmd_name, "#")
         self.dut.kill_all()
-        self.bind_cbdma_device_to_kernel()
 
     def tear_down_all(self):
         """
