[dts][PATCH V1] tests/kernelpf_iavf: optimize script multicast case cancel trust mode

[Weiyuan Li <weiyuanx.li@intel.com>]

Case vf_multicast cancel trust model and use 'mcast_addr' add multicast
address to the testpmd.

Signed-off-by: Weiyuan Li <weiyuanx.li@intel.com>
---
 tests/TestSuite_kernelpf_iavf.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tests/TestSuite_kernelpf_iavf.py b/tests/TestSuite_kernelpf_iavf.py
index 73435339..494204a2 100644
--- a/tests/TestSuite_kernelpf_iavf.py
+++ b/tests/TestSuite_kernelpf_iavf.py
@@ -334,13 +334,13 @@ class TestKernelpfIavf(TestCase):
         self.send_random_pkt(self.wrong_mac, count=1)
         out = self.vm_dut.get_session_output()
         self.verify(self.wrong_mac in out, "vf receive pkt fail with wrong mac")
+        self.dut.send_expect("ip link set dev %s vf 0 trust off" % self.host_intf, "# ")
 
     def test_vf_multicast(self):
         """
         enable kernel trust mode
         """
         multicast_mac = "01:80:C2:00:00:08"
-        self.dut.send_expect("ip link set dev %s vf 0 trust on" % self.host_intf, "# ")
         self.launch_testpmd(dcf_flag=self.dcf_mode)
         self.vm_testpmd.execute_cmd("set fwd mac")
         self.vm_testpmd.execute_cmd("set promisc all off")
@@ -355,6 +355,7 @@ class TestKernelpfIavf(TestCase):
         self.verify(multicast_mac not in out, "vf receive pkt with multicast mac")
 
         self.vm_testpmd.execute_cmd("set allmulti all on")
+        self.vm_testpmd.execute_cmd(f"mcast_addr add 0 {multicast_mac}")
         self.send_random_pkt(self.vf_mac, count=1)
         out = self.vm_dut.get_session_output()
         self.verify(self.vf_mac in out, "vf receive pkt fail with current mac")
-- 
2.27.0