[dts] [PATCH]tests vf_port_start_stop: update test case

[Lijuan Tu <lijuanx.a.tu@intel.com>]

Forwarding checking RX-packets, RX-Bytes, Tx-packets, Tx-bytes,
Do not checking Rx-errors
fortville NIC:
    when not start, the port is ready to RX but NOT RX packets,
    if you send 119 packets at 64B, then it will be RXed at the NIC's hardware buffer
    if the buffer is full, it will show in RX-errors
    so we do not verify Rx-errors.

Signed-off-by: Lijuan Tu <lijuanx.a.tu@intel.com>
---
 tests/TestSuite_vf_port_start_stop.py | 48 ++++++++++++++++++++++-------------
 1 file changed, 30 insertions(+), 18 deletions(-)

diff --git a/tests/TestSuite_vf_port_start_stop.py b/tests/TestSuite_vf_port_start_stop.py
index 0cc7ffd..17aa589 100644
--- a/tests/TestSuite_vf_port_start_stop.py
+++ b/tests/TestSuite_vf_port_start_stop.py
@@ -114,11 +114,19 @@ class TestVfPortStartStop(TestCase):
         testpmd.execute_cmd('port stop all')
         testpmd.execute_cmd('clear port stats all')
 
-    def check_port_start_stop(self, testpmd, times=10):
+    def check_port_start_stop(self, testpmd, times=1000):
         """
         VF port start/stop several times , check if it work well.
         """
+        port_id_0 = 0
+        port_id_1 = 1
+
         for i in range(times):
+            vf0_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
+            b_vf0_rx_pkts, b_vf0_rx_bytes = vf0_stats['RX-packets'], vf0_stats['RX-bytes']
+            vf1_stats = self.vm0_testpmd.get_pmd_stats(port_id_1)
+            b_vf1_tx_pkts, b_vf1_tx_bytes = vf1_stats['TX-packets'], vf1_stats['TX-bytes']
+
             out = testpmd.execute_cmd('port start all')
             self.verify("Checking link statuses" in out, "ERROR: port start all")
             testpmd.execute_cmd('start')
@@ -127,22 +135,20 @@ class TestVfPortStartStop(TestCase):
             out = testpmd.execute_cmd('port stop all')
             self.verify("Checking link statuses" in out, "ERROR: port stop all")
 
-        port_id_0 = 0
-        port_id_1 = 1
-        vf0_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
-        vf1_stats = self.vm0_testpmd.get_pmd_stats(port_id_1)
-
-        vf0_rx_cnt = vf0_stats['RX-packets']
-        self.verify(vf0_rx_cnt != 0, "no packet was received by vm0_VF0")
-
-        vf0_rx_err = vf0_stats['RX-errors']
-        self.verify(vf0_rx_err == 0, "vm0_VF0 rx-errors")
-    
-        vf1_tx_cnt = vf1_stats['TX-packets']
-        self.verify(vf1_tx_cnt != 0, "no packet was transmitted by vm0_VF1")
-
-        vf1_tx_err = vf1_stats['TX-errors']
-        self.verify(vf1_tx_err == 0, "vm0_VF0 tx-errors")
+            vf0_stats = self.vm0_testpmd.get_pmd_stats(port_id_0)
+            c_vf0_rx_pkts, c_vf0_rx_bytes = vf0_stats['RX-packets'], vf0_stats['RX-bytes']
+            vf1_stats = self.vm0_testpmd.get_pmd_stats(port_id_1)
+            c_vf1_tx_pkts, c_vf1_tx_bytes = vf1_stats['TX-packets'], vf1_stats['TX-bytes']
+
+            #Fortville NIC :when not start, the port is ready to RX but NOT RX packets, 
+            #if you send  packets , then it will be RXed at the NIC's hardware buffer
+            #if buffer is full ,it will show RX-errors
+            #so, we do not check RX-errors
+            #compare vf0 RX-packets RX-bytes ,vf1 Tx-packets TX-bytes
+            self.verify(c_vf0_rx_pkts > b_vf0_rx_pkts, "Packets received error")
+            self.verify(c_vf0_rx_bytes > b_vf0_rx_bytes, "Bytes received error")
+            self.verify(c_vf1_tx_pkts > b_vf1_tx_pkts, "Packets forwarding error")
+            self.verify(c_vf1_tx_bytes > b_vf1_tx_bytes, "Bytes forvwarding error")
 
     def setup_1pf_2vf_1vm_env(self, driver='default'):
 
@@ -215,11 +221,17 @@ class TestVfPortStartStop(TestCase):
 
         self.vm0_testpmd = PmdOutput(self.vm_dut_0)
         self.vm0_testpmd.start_testpmd(VM_CORES_MASK)
+
+        self.vm0_testpmd.execute_cmd('port stop all')
+        self.vm0_testpmd.execute_cmd('port config all crc-strip on')
+        self.vm0_testpmd.execute_cmd('port start all')
         self.vm0_testpmd.execute_cmd('set fwd mac')
+#        self.vm0_testpmd.execute_cmd('start')
 
         time.sleep(2)
 
-        dst_mac = self.vm_dut_0.get_mac_address(self.vm0_dut_ports[0])
+        port_id_0 = 0
+        dst_mac = self.vm0_testpmd.get_port_mac(port_id_0)
         self.send_and_verify(dst_mac, self.vm0_testpmd) 
 
     def tear_down(self):
-- 
1.9.3