[dts] [PATCH v3] tests: add test_rx_checksum_valid_flags

Peng Yuan yuan.peng at intel.com
Thu Feb 23 23:08:52 CET 2017


Signed-off-by: Peng Yuan <yuan.peng at intel.com>

diff --git a/tests/TestSuite_checksum_offload.py b/tests/TestSuite_checksum_offload.py
index 7989c14..9b9015d 100644
--- a/tests/TestSuite_checksum_offload.py
+++ b/tests/TestSuite_checksum_offload.py
@@ -44,6 +44,7 @@ import utils
 from test_case import TestCase
 from pmd_output import PmdOutput
 
+
 class TestChecksumOffload(TestCase):
 
     def set_up_all(self):
@@ -81,6 +82,70 @@ class TestChecksumOffload(TestCase):
             self.dut.send_expect("csum set tcp sw %d" % port, "testpmd>")
             self.dut.send_expect("csum set sctp sw %d" % port, "testpmd>")
 
+    def get_chksum_values(self, packets_expected):
+        """
+        Validate the checksum flags.
+        """
+        checksum_pattern = re.compile("chksum.*=.*(0x[0-9a-z]+)")
+
+        chksum = dict()
+
+        self.tester.send_expect("scapy", ">>> ")
+
+        for packet_type in packets_expected.keys():
+            self.tester.send_expect("p = %s" % packets_expected[packet_type], ">>>")
+            out = self.tester.send_expect("p.show2()", ">>>")
+            chksums = checksum_pattern.findall(out)
+            chksum[packet_type] = chksums
+
+        self.tester.send_expect("exit()", "#")
+
+        return chksum
+
+    def checksum_valid_flags(self, packets_sent, flag):
+        """
+        Sends packets and check the checksum valid-flags.
+        """
+        self.tester.scapy_foreground()
+        self.dut.send_expect("start", "testpmd>")
+        mac = self.dut.get_mac_address(self.dut_ports[0])
+        tx_interface = self.tester.get_interface(self.tester.get_local_port(self.dut_ports[0]))
+        self.tester.scapy_foreground()
+
+        for packet_type in packets_sent.keys():
+            self.tester.scapy_append('sendp([%s], iface="%s")' % (packets_sent[packet_type], tx_interface))
+            self.tester.scapy_execute()
+            out = self.dut.get_session_output(timeout=1)
+            lines = out.split("\r\n")
+
+            # collect the checksum result
+            for line in lines:
+                line = line.strip()
+                if len(line) != 0 and line.startswith("rx"):
+                    # IPv6 don't be checksum, so always show "GOOD"
+                    if packet_type.startswith("IPv6"):
+                        if "PKT_RX_L4_CKSUM" not in line:
+                            self.verify(0, "There is no checksum flags appeared!")
+                        else:
+                            if (flag == 1):
+                                self.verify("PKT_RX_L4_CKSUM_GOOD" in line, "Packet Rx L4 checksum valid-flags error!")
+                            elif (flag == 0):
+                                self.verify("PKT_RX_L4_CKSUM_BAD" in line, "Packet Rx L4 checksum valid-flags error!")
+                    else:
+                        if "PKT_RX_L4_CKSUM" not in line:
+                            self.verify(0, "There is no L4 checksum flags appeared!")
+                        elif "PKT_RX_IP_CKSUM" not in line:
+                            self.verify(0, "There is no IP checksum flags appeared!")
+                        else:
+                            if (flag == 1):
+                                self.verify("PKT_RX_L4_CKSUM_GOOD" in line, "Packet Rx L4 checksum valid-flags error!")
+                                self.verify("PKT_RX_IP_CKSUM_GOOD" in line, "Packet Rx IP checksum valid-flags error!")
+                            elif (flag == 0):
+                                self.verify("PKT_RX_L4_CKSUM_BAD" in line, "Packet Rx L4 checksum valid-flags error!")
+                                self.verify("PKT_RX_IP_CKSUM_BAD" in line, "Packet Rx IP checksum valid-flags error!")
+
+        self.dut.send_expect("stop", "testpmd>")
+
     def checksum_validate(self, packets_sent, packets_expected):
         """
         Validate the checksum.
@@ -123,16 +188,16 @@ class TestChecksumOffload(TestCase):
         self.verify(len(packets_sent) == len(packets_received), "Unexpected Packets Drop")
 
         for packet_received in packets_received:
-            ip_checksum, tcp_checksum, udp_checksup, sctp_checksum = packet_received.split(';')
+            ip_checksum, tcp_checksum, udp_checksum, sctp_checksum = packet_received.split(';')
 
             packet_type = ''
             l4_checksum = ''
             if tcp_checksum != '??':
                 packet_type = 'TCP'
                 l4_checksum = tcp_checksum
-            elif udp_checksup != '??':
+            elif udp_checksum != '??':
                 packet_type = 'UDP'
-                l4_checksum = udp_checksup
+                l4_checksum = udp_checksum
             elif sctp_checksum != '??':
                 packet_type = 'SCTP'
                 l4_checksum = sctp_checksum
@@ -157,16 +222,16 @@ class TestChecksumOffload(TestCase):
         mac = self.dut.get_mac_address(self.dut_ports[0])
 
         pktsChkErr = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/UDP(chksum=0xf)/("X"*46)' % mac,
-                'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/TCP(chksum=0xf)/("X"*46)' % mac,
-                'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/SCTP(chksum=0xf)/("X"*48)' % mac,
-                'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP(chksum=0xf)/("X"*46)' % mac,
-                'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP(chksum=0xf)/("X"*46)' % mac}
+                      'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/TCP(chksum=0xf)/("X"*46)' % mac,
+                      'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IP(chksum=0x0)/SCTP(chksum=0xf)/("X"*48)' % mac,
+                      'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP(chksum=0xf)/("X"*46)' % mac,
+                      'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP(chksum=0xf)/("X"*46)' % mac}
 
         pkts = {'IP/UDP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/UDP()/("X"*46)' % mac,
-                    'IP/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/TCP()/("X"*46)' % mac,
-                    'IP/SCTP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/SCTP()/("X"*48)' % mac,
-                    'IPv6/UDP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP()/("X"*46)' % mac,
-                    'IPv6/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP()/("X"*46)' % mac}
+                'IP/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/TCP()/("X"*46)' % mac,
+                'IP/SCTP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IP(src="127.0.0.1")/SCTP()/("X"*48)' % mac,
+                'IPv6/UDP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/UDP()/("X"*46)' % mac,
+                'IPv6/TCP': 'Ether(dst="02:00:00:00:00:00", src="%s")/Dot1Q(vlan=1)/IPv6(src="::1")/TCP()/("X"*46)' % mac}
 
         if self.kdriver == "fm10k":
             del pktsChkErr['IP/SCTP']
@@ -177,7 +242,50 @@ class TestChecksumOffload(TestCase):
         result = self.checksum_validate(pktsChkErr, pkts)
         self.dut.send_expect("stop", "testpmd>")
         self.verify(len(result) == 0, string.join(result.values(), ","))
-        
+
+    def test_rx_checksum_valid_flags(self):
+        """
+        Insert right and wrong IPv4/IPv6 UDP/TCP/SCTP checksum on the
+        transmit packet.Enable Checksum offload.
+        Verify the checksum valid-flags.
+        """
+        mac = self.dut.get_mac_address(self.dut_ports[0])
+
+        pkts_ref = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP()/UDP()/("X"*46)' % mac,
+                    'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1")/TCP()/("X"*46)' % mac,
+                    'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1")/SCTP()/("X"*48)' % mac,
+                    'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/UDP()/("X"*46)' % mac,
+                    'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/TCP()/("X"*46)' % mac}
+
+        result = dict()
+        if self.kdriver == "fm10k":
+            del pkts['IP/SCTP']
+            del pkts_ref['IP/SCTP']
+
+        self.checksum_enablehw(self.dut_ports[0])
+
+        # get the packet checksum value
+        result = self.get_chksum_values(pkts_ref)
+
+        # set the expected checksum values same with the actual values
+        pkts_good = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(chksum=int(%s))/UDP(chksum=int(%s))/("X"*46)' % (mac, result['IP/UDP'][0], result['IP/UDP'][1]),
+                     'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=int(%s))/TCP(chksum=int(%s))/("X"*46)' % (mac, result['IP/TCP'][0], result['IP/TCP'][1]),
+                     'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=int(%s))/SCTP(chksum=int(%s))/("X"*48)' % (mac, result['IP/SCTP'][0], result['IP/SCTP'][1]),
+                     'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/UDP(chksum=int(%s))/("X"*46)' % (mac, result['IPv6/UDP'][0]),
+                     'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/TCP(chksum=int(%s))/("X"*46)' % (mac, result['IPv6/TCP'][0])}
+
+        # set the expected checksum values different from the actual values
+        pkts_bad = {'IP/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(chksum=0x0)/UDP(chksum=0xf)/("X"*46)' % mac,
+                    'IP/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=0x0)/TCP(chksum=0xf)/("X"*46)' % mac,
+                    'IP/SCTP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IP(src="10.0.0.1",chksum=0x0)/SCTP(chksum=0xf)/("X"*48)' % mac,
+                    'IPv6/UDP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/UDP(chksum=0xf)/("X"*46)' % mac,
+                    'IPv6/TCP': 'Ether(dst="%s", src="52:00:00:00:00:00")/IPv6(src="::1")/TCP(chksum=0xf)/("X"*46)' % mac}
+
+        # send the packet checksum value same with the expected value
+        self.checksum_valid_flags(pkts_good, 1)
+        # send the packet checksum value different from the expected value
+        self.checksum_valid_flags(pkts_bad, 0)
+
     def test_checksum_offload_enable(self):
         """
         Insert IPv4/IPv6 UDP/TCP/SCTP checksum on the transmit packet.
-- 
2.5.0



More information about the dts mailing list