[dts] [PATCH V1] tests/iavf_flexible_descriptor: add private flag for vf vlan

[sunqin]

Signed-off-by: sunqin <qinx.sun at intel.com>
---
 tests/TestSuite_iavf_flexible_descriptor.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/TestSuite_iavf_flexible_descriptor.py b/tests/TestSuite_iavf_flexible_descriptor.py
index 69f38bf6..58dd850a 100644
--- a/tests/TestSuite_iavf_flexible_descriptor.py
+++ b/tests/TestSuite_iavf_flexible_descriptor.py
@@ -79,10 +79,11 @@ class TestIavfFlexibleDescriptor(TestCase, FlexibleRxdBase):
             netdev.bind_driver(driver=self.kdriver)
         # set vf assign method and vf driver
         vf_driver = 'vfio-pci'
+        pf0_intf = self.dut.ports_info[self.dut_ports[dut_index]]['intf']
+        self.dut.send_expect('ethtool --set-priv-flags {} vf-vlan-prune-disable on'.format(pf0_intf),'#')
         # generate 2 VFs on PF
         self.dut.generate_sriov_vfs_by_port(
             used_dut_port, 1, driver=self.kdriver)
-        pf0_intf = self.dut.ports_info[self.dut_ports[dut_index]]['intf']
         vf_mac = "00:11:22:33:44:55"
         self.dut.send_expect(
             'ip link set {} vf 0 mac {}'.format(pf0_intf, vf_mac), '#')
-- 
2.17.1