[dts] [PATCH] Fix checksum_checking failed issue

[changru]

In UDP packet, if the chksum is equal to 0, it means the receiver don't need to check.
But, we want to send a packet with an error checksum.
On the other hand, on 1G NICs, the packet received has the same length with the packet sent.   

Signed-off-by: changru <changrux.fan at intel.com>
---
 tests/TestSuite_pmd.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/tests/TestSuite_pmd.py b/tests/TestSuite_pmd.py
index afb2450..525ed02 100644
--- a/tests/TestSuite_pmd.py
+++ b/tests/TestSuite_pmd.py
@@ -375,7 +375,7 @@ class TestPmd(TestCase,IxiaPacketGenerator):
 
         checksum = ''
         if checksum_test:
-            checksum = 'chksum=0x0'
+            checksum = 'chksum=0x1'
 
         self.tester.scapy_foreground()
         self.tester.scapy_append('nutmac="%s"' % mac)
@@ -402,8 +402,12 @@ class TestPmd(TestCase,IxiaPacketGenerator):
                     "packet pass assert error, %d RX packets, %d TX packets" % (p1rx_pkts, p0tx_pkts))
 
         if checksum_test:
-            self.verify(p1rx_bytes == frame_size - 4,
-                        "packet pass assert error, expected %d RX bytes, actual %d" % (frame_size - 4, p1rx_bytes))
+            if self.nic in ["powerville", "springville", "kawela_4"]:
+            	self.verify(p1rx_bytes == frame_size,
+                        	"packet pass assert error, expected %d RX bytes, actual %d" % (frame_size, p1rx_bytes))
+            else:
+            	self.verify(p1rx_bytes == frame_size - 4,
+                        	"packet pass assert error, expected %d RX bytes, actual %d" % (frame_size - 4, p1rx_bytes))
         else:
             self.verify(p1rx_bytes == frame_size,
                         "packet pass assert error, expected %d RX bytes, actual %d" % (frame_size, p1rx_bytes))
-- 
2.1.0