[dts][PATCH V1 07/12] tests/tx_preparation: update dts code for dpdk csum change

[Weiyuan Li]

According to dpdk commit 9b4ea7ae77fa(app/testpmd: revert MAC update in checksum forwarding) modify
the script adapt to this chagne.

1. Modify VF case to enable promisc.
2. Modify PF case to send packet dst mac is random.

Signed-off-by: Weiyuan Li <weiyuanx.li at intel.com>
---
 tests/TestSuite_tx_preparation.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/TestSuite_tx_preparation.py b/tests/TestSuite_tx_preparation.py
index 9b70699c..ac0680c6 100644
--- a/tests/TestSuite_tx_preparation.py
+++ b/tests/TestSuite_tx_preparation.py
@@ -73,7 +73,7 @@ class TestTX_preparation(TestCase):
             " --portmask=1 --port-topology=chained --max-pkt-len=%s --tx-offloads=0x8000"
             % Max_mtu,
         )
-        self.dmac = self.dut_testpmd.get_port_mac(0)
+        self.dmac = "23:00:00:00:00:00"
         self.dut_testpmd.execute_cmd("set fwd csum")
         self.dut_testpmd.execute_cmd("set verbose 1")
         # enable ip/udp/tcp hardware checksum
@@ -84,7 +84,7 @@ class TestTX_preparation(TestCase):
 
     def start_tcpdump(self, rxItf):
         # only sniff form dut packet and filter lldp packet
-        param = "ether[12:2]!=0x88cc and ether src %s" % self.dmac
+        param = "ether[12:2]!=0x88cc and ether dst %s -Q in" % self.dmac
         self.tester.send_expect("rm -rf ./getPackageByTcpdump.cap", "#")
         self.tester.send_expect(
             "tcpdump %s -i %s -n -e -vv -w\
-- 
2.27.0