X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_gro.py;h=7e6b03c91d4848fce074df96adec8b89bf81e48e;hb=ac3c8dcb076245544e61dabb984d057167572276;hp=33215d65fa77ce060002ec23f159770f63eb8c27;hpb=eddd8e3588561039985b27edf059db6033bfdfab;p=vpp.git

diff --git a/test/test_gro.py b/test/test_gro.py
index 33215d65fa7..7e6b03c91d4 100644
--- a/test/test_gro.py
+++ b/test/test_gro.py
@@ -26,7 +26,7 @@ from vpp_interface import VppInterface
 
 
 class TestGRO(VppTestCase):
-    """ GRO Test Case """
+    """GRO Test Case"""
 
     @classmethod
     def setUpClass(self):
@@ -63,17 +63,18 @@ class TestGRO(VppTestCase):
                 i.admin_down()
 
     def test_gro(self):
-        """ GRO test """
+        """GRO test"""
 
         n_packets = 124
         #
         # Send 1500 bytes frame with gro disabled
         #
-        p4 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
-              IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4,
-                 flags='DF') /
-              TCP(sport=1234, dport=4321) /
-              Raw(b'\xa5' * 1460))
+        p4 = (
+            Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+            / IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, flags="DF")
+            / TCP(sport=1234, dport=4321)
+            / Raw(b"\xa5" * 1460)
+        )
 
         rxs = self.send_and_expect(self.pg0, n_packets * p4, self.pg1)
         for rx in rxs:
@@ -91,11 +92,14 @@ class TestGRO(VppTestCase):
         p = []
         s = 0
         for n in range(0, n_packets):
-            p.append((Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
-                      IP(src=self.pg0.remote_ip4, dst=self.pg2.remote_ip4,
-                         flags='DF') /
-                      TCP(sport=1234, dport=4321, seq=s, ack=n, flags='A') /
-                      Raw(b'\xa5' * 1460)))
+            p.append(
+                (
+                    Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+                    / IP(src=self.pg0.remote_ip4, dst=self.pg2.remote_ip4, flags="DF")
+                    / TCP(sport=1234, dport=4321, seq=s, ack=n, flags="A")
+                    / Raw(b"\xa5" * 1460)
+                )
+            )
             s += 1460
 
         rxs = self.send_and_expect(self.pg0, p, self.pg2, n_rx=2)
@@ -110,14 +114,15 @@ class TestGRO(VppTestCase):
             self.assertEqual(rx[IP].len, 64280)  # 1460 * 44 + 40 < 65536
             self.assertEqual(rx[TCP].sport, 1234)
             self.assertEqual(rx[TCP].dport, 4321)
-            self.assertEqual(rx[TCP].ack, (44*i - 1))
+            self.assertEqual(rx[TCP].ack, (44 * i - 1))
 
-        p4_temp = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
-                   IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4,
-                      flags='DF') /
-                   TCP(sport=1234, dport=4321, flags='F'))
+        p4_temp = (
+            Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
+            / IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags="DF")
+            / TCP(sport=1234, dport=4321, flags="F")
+        )
 
-        rxs = self.send_and_expect(self.pg2, 100*[p4_temp], self.pg0, n_rx=100)
+        rxs = self.send_and_expect(self.pg2, 100 * [p4_temp], self.pg0, n_rx=100)
         rx_coalesce = self.pg2.get_capture(1, timeout=1)
 
         rx0 = rx_coalesce[0]
@@ -138,5 +143,120 @@ class TestGRO(VppTestCase):
             self.assertEqual(rx[TCP].sport, 1234)
             self.assertEqual(rx[TCP].dport, 4321)
 
-if __name__ == '__main__':
+        #
+        # Same test with IPv6
+        #
+        p = []
+        s = 0
+        for n in range(0, 88):
+            p.append(
+                (
+                    Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+                    / IPv6(src=self.pg0.remote_ip6, dst=self.pg2.remote_ip6)
+                    / TCP(sport=1234, dport=4321, seq=s, ack=n, flags="A")
+                    / Raw(b"\xa5" * 1460)
+                )
+            )
+            s += 1460
+        p[-1][TCP].flags = "AP"  # push to flush second packet
+
+        rxs = self.send_and_expect(self.pg0, p, self.pg2, n_rx=2)
+
+        i = 0
+        for rx in rxs:
+            i += 1
+            self.assertEqual(rx[Ether].src, self.pg2.local_mac)
+            self.assertEqual(rx[Ether].dst, self.pg2.remote_mac)
+            self.assertEqual(rx[IPv6].src, self.pg0.remote_ip6)
+            self.assertEqual(rx[IPv6].dst, self.pg2.remote_ip6)
+            self.assertEqual(rx[IPv6].plen, 64260)  # 1460 * 44 + 20 < 65536
+            self.assertEqual(rx[TCP].sport, 1234)
+            self.assertEqual(rx[TCP].dport, 4321)
+            self.assertEqual(rx[TCP].ack, (44 * i - 1))
+
+        #
+        # Send a series of 1500 bytes packets each followed by a packet with a
+        # PSH flag. Verify that GRO stops everytime a PSH flag is encountered
+        #
+        p = []
+        s = 0
+        for n in range(0, n_packets):
+            p.append(
+                (
+                    Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+                    / IP(src=self.pg0.remote_ip4, dst=self.pg2.remote_ip4, flags="DF")
+                    / TCP(sport=1234, dport=4321, seq=s, ack=2 * n, flags="A")
+                    / Raw(b"\xa5" * 1460)
+                )
+            )
+            s += 1460
+            p.append(
+                (
+                    Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
+                    / IP(src=self.pg0.remote_ip4, dst=self.pg2.remote_ip4, flags="DF")
+                    / TCP(sport=1234, dport=4321, seq=s, ack=2 * n + 1, flags="AP")
+                    / Raw(b"\xa5" * 1340)
+                )
+            )
+            s += 1340
+
+        rxs = self.send_and_expect(self.pg0, p, self.pg2, n_rx=n_packets)
+
+        i = 0
+        for rx in rxs:
+            self.assertEqual(rx[Ether].src, self.pg2.local_mac)
+            self.assertEqual(rx[Ether].dst, self.pg2.remote_mac)
+            self.assertEqual(rx[IP].src, self.pg0.remote_ip4)
+            self.assertEqual(rx[IP].dst, self.pg2.remote_ip4)
+            self.assertEqual(rx[IP].len, 40 + 1460 + 1340)
+            self.assertEqual(rx[TCP].sport, 1234)
+            self.assertEqual(rx[TCP].dport, 4321)
+            self.assertEqual(rx[TCP].ack, (2 * i + 1))
+            i += 1
+
+        #
+        # Send a series of 1500 bytes packets each followed by a short packet
+        # with padding. Verify that GRO removes the padding and stops on short
+        # packets
+        #
+        p = []
+        s = 0
+        for n in range(0, n_packets):
+            i = self.pg0
+            p.append(
+                (
+                    Ether(src=i.remote_mac, dst=i.local_mac)
+                    / IP(src=i.remote_ip4, dst=self.pg2.remote_ip4, flags="DF")
+                    / TCP(sport=1234, dport=4321, seq=s, ack=2 * n, flags="A")
+                    / Raw(b"\xa5" * 1459)
+                )
+            )
+            s += 1459
+            p2 = (
+                Ether(src=i.remote_mac, dst=i.local_mac)
+                / IP(src=i.remote_ip4, dst=self.pg2.remote_ip4, flags="DF", len=41)
+                / TCP(sport=1234, dport=4321, seq=s, ack=2 * n + 1, flags="A")
+                / Raw(b"\xa5")
+            )
+            # first compute csum of pkt w/o padding to work around scapy bug
+            p2 = Ether(bytes(p2))
+            p.append(p2 / Raw(b"\xa5" * 5))  # 1 byte data + 5 bytes padding
+            s += 1
+
+        rxs = self.send_and_expect(self.pg0, p, self.pg2, n_rx=n_packets)
+
+        i = 0
+        for rx in rxs:
+            self.assertEqual(rx[Ether].src, self.pg2.local_mac)
+            self.assertEqual(rx[Ether].dst, self.pg2.remote_mac)
+            self.assertEqual(rx[IP].src, self.pg0.remote_ip4)
+            self.assertEqual(rx[IP].dst, self.pg2.remote_ip4)
+            self.assertEqual(rx[IP].len, 40 + 1459 + 1)
+            self.assertEqual(rx[TCP].sport, 1234)
+            self.assertEqual(rx[TCP].dport, 4321)
+            self.assertEqual(rx[TCP].ack, (2 * i + 1))
+            i += 1
+
+
+if __name__ == "__main__":
     unittest.main(testRunner=VppTestRunner)