[dts] [PATCH] tests: fix ethx with i40e diver link down failed

[Xinfeng Zhao]

When the link-down-on-close private flag is set to "on",
the port's link will go down when the interface is brought down using the ifconfig ethX down command.

Signed-off-by: Xinfeng Zhao <xinfengx.zhao at intel.com>
---
 tests/TestSuite_link_status_interrupt.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tests/TestSuite_link_status_interrupt.py b/tests/TestSuite_link_status_interrupt.py
index 82cefce..9909d78 100644
--- a/tests/TestSuite_link_status_interrupt.py
+++ b/tests/TestSuite_link_status_interrupt.py
@@ -75,10 +75,15 @@ class TestLinkStatusInterrupt(TestCase):
         """
         set link status verify results
         """
-        self.intf = self.tester.get_interface(
-            self.tester.get_local_port(dutPort))
+        tester_port = self.tester.get_local_port(dutPort)
+        self.intf = self.tester.get_interface(tester_port)
+        tester_driver = self.tester.ports_info[tester_port]['port'].get_nic_driver()
+        if tester_driver == "i40e":
+            self.tester.send_expect("ethtool --set-priv-flags %s link-down-on-close on" %
+                                    self.intf, "# ", 10)
         self.tester.send_expect("ifconfig %s %s" %
                                 (self.intf, status.lower()), "# ", 10)
+
         verify_point = "Port %s Link %s" % (dutPort, status) 
         out = self.dut.get_session_output(timeout=60)
         self.verify(verify_point in out, "link status update error")
-- 
2.17.1