fix 4 issue:
  1.check and wait for the port status of the tester and dut to be up and delete some unnecessary delays.
  2.700 Series not support port disconnect by tools of linux, add 'I40E_10G-10G_BASE_T_X722'
and 'I40E_10G-10G_BASE_T_BC'.
  3.ensure that the dpdk app has exited and rebind the driver.
  4.the driver of 'IGC-I225_LM' is i40e, not support the case, add to checklist.

Signed-off-by: Jiale Song <songx.jiale@intel.com>
---
 conf/test_case_checklist.json        |  3 ++-
 tests/TestSuite_userspace_ethtool.py | 34 ++++++++++++++++++----------
 2 files changed, 24 insertions(+), 13 deletions(-)

diff --git a/conf/test_case_checklist.json b/conf/test_case_checklist.json
index 053841ce..0347bc54 100644
--- a/conf/test_case_checklist.json
+++ b/conf/test_case_checklist.json
@@ -2131,7 +2131,8 @@
                 "I40E_10G-SFP_X722",
                 "I40E_10G-10G_BASE_T_X722",
                 "IAVF_10G-X722_VF",
-                "I40E_10G-10G_BASE_T_BC"
+                "I40E_10G-10G_BASE_T_BC",
+                "IGC-I225_LM"
             ],
             "Target": [
                 "ALL"
diff --git a/tests/TestSuite_userspace_ethtool.py b/tests/TestSuite_userspace_ethtool.py
index adbba999..9f0bd8a8 100644
--- a/tests/TestSuite_userspace_ethtool.py
+++ b/tests/TestSuite_userspace_ethtool.py
@@ -28,7 +28,7 @@ class TestUserspaceEthtool(TestCase):
         """
         self.ports = self.dut.get_ports()
         self.verify(len(self.ports) >= 2, "No ports found for " + self.nic)
-
+        self.other_700_nic = ["I40E_10G-10G_BASE_T_X722", "I40E_10G-10G_BASE_T_BC"]
         # build sample app
         out = self.dut.build_dpdk_apps("examples/ethtool")
         self.verify("Error" not in out, "compilation error 1")
@@ -263,18 +263,25 @@ class TestUserspaceEthtool(TestCase):
             portinfo["net_dev"].bind_driver(portinfo["ori_driver"])
 
         self.dut.send_expect(self.cmd, "EthApp>", 60)
+        for port in self.ports:
+            tester_port = self.tester.get_local_port(port)
+            intf = self.tester.get_interface(tester_port)
+            self.tester.is_interface_up(intf)
         # ethtool doesn't support port disconnect by tools of linux
         # only detect physical link disconnect status
         verify_pass = True
         verify_msg = ""
-        if not (self.is_eth_series_nic(700) or self.is_eth_series_nic(800)):
+        if not (
+            self.is_eth_series_nic(700)
+            or self.other_700_nic
+            or self.is_eth_series_nic(800)
+        ):
             # check link status dump function
             for port in self.ports:
                 tester_port = self.tester.get_local_port(port)
                 intf = self.tester.get_interface(tester_port)
                 self.tester.send_expect("ip link set dev %s down" % intf, "# ")
-            # wait for link stable
-            time.sleep(5)
+                self.tester.is_interface_down(intf)
 
             out = self.dut.send_expect("link", "EthApp>", 60)
             link_pattern = r"Port (\d+): (.*)"
@@ -299,8 +306,7 @@ class TestUserspaceEthtool(TestCase):
                 tester_port = self.tester.get_local_port(port)
                 intf = self.tester.get_interface(tester_port)
                 self.tester.send_expect("ip link set dev %s up" % intf, "# ")
-            # wait for link stable
-            time.sleep(5)
+                self.tester.is_interface_up(intf)
 
         # check port stats function
         pkt = Packet(pkt_type="UDP")
@@ -447,12 +453,13 @@ class TestUserspaceEthtool(TestCase):
             )
             pkt = Packet(pkt_type="UDP")
             tester_port = self.tester.get_local_port(port)
+            intf = self.tester.get_interface(tester_port)
+            self.tester.is_interface_up(intf)
             self.verify(
                 self.ethapp_check_link_status(index, "Up") == True,
                 "Fail to Open port{}".format(index),
             )
-
-            intf = self.tester.get_interface(tester_port)
+            time.sleep(1)
             pkt.send_pkt(self.tester, tx_port=intf, count=4)
             rx_pkts, tx_pkts = self.strip_portstats(index)
             self.verify(
@@ -532,6 +539,7 @@ class TestUserspaceEthtool(TestCase):
             pkt = Packet(pkt_type="UDP")
             tester_port = self.tester.get_local_port(port)
             intf = self.tester.get_interface(tester_port)
+            self.tester.is_interface_up(intf)
             pkt.send_pkt(self.tester, tx_port=intf, count=4)
             rx_pkts, tx_pkts = self.strip_portstats(index)
             self.verify(rx_pkts == ori_rx_pkts, "Failed to stop port")
@@ -575,7 +583,6 @@ class TestUserspaceEthtool(TestCase):
                 # Intel® Ethernet 800 Series should stop port before set mtu
                 if self.nic in ["ICE_25G-E810C_SFP", "ICE_100G-E810C_QSFP"]:
                     self.dut.send_expect("stop %s" % index, "EthApp>")
-
                 # The mtu threshold is 2022,When it is greater than 2022, the open/stop port is required.
                 if mtu > mtu_threshold:
                     if self.nic in [
@@ -592,7 +599,11 @@ class TestUserspaceEthtool(TestCase):
                 if self.nic in ["ICE_25G-E810C_SFP", "ICE_100G-E810C_QSFP"]:
                     self.dut.send_expect("open %s" % index, "EthApp>")
 
-                time.sleep(5)
+                self.tester.is_interface_up(intf)
+                self.verify(
+                    self.ethapp_check_link_status(index, "Up") == True,
+                    "Fail to Open port{}".format(index),
+                )
                 ori_rx_pkts, _ = self.strip_portstats(index)
                 pkt_size = mtu + HEADER_SIZE["eth"] + offset
                 pkt = Packet(pkt_type="UDP", pkt_len=pkt_size)
@@ -677,9 +688,8 @@ class TestUserspaceEthtool(TestCase):
         """
         Run after each test case.
         """
-        self.dut.bind_interfaces_linux(self.drivername)
         self.dut.kill_all()
-        pass
+        self.dut.bind_interfaces_linux(self.drivername)
 
     def tear_down_all(self):
         """
-- 
2.17.1