pg: add GSO support
Type: feature Change-Id: I72676495a85fbecc946aa266a75234cce70c3a5e Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
This commit is contained in:
Mohsin Kazmi
committed by
Neale Ranns
Neale Ranns
parent
be83704c5b
commit
22e9cfd760
175
test/test_gso.py
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175
test/test_gso.py
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#!/usr/bin/env python
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"""GSO functional tests"""
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#
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# Add tests for:
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# - GSO
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# - Verify that sending Jumbo frame without GSO enabled correctly
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# - Verify that sending Jumbo frame with GSO enabled correctly
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# - Verify that sending Jumbo frame with GSO enabled only on ingress interface
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#
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import unittest
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from scapy.packet import Raw
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from scapy.layers.inet6 import IPv6, Ether, IP, UDP, ICMPv6PacketTooBig
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from scapy.layers.inet import TCP, ICMP
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from scapy.layers.vxlan import VXLAN
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from scapy.data import ETH_P_IP, ETH_P_IPV6, ETH_P_ARP
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from framework import VppTestCase, VppTestRunner
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from vpp_object import VppObject
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from vpp_interface import VppInterface
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from vpp_ip import DpoProto
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from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathProto
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from socket import AF_INET, AF_INET6, inet_pton
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from util import reassemble4
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""" Test_gso is a subclass of VPPTestCase classes.
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GSO tests.
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"""
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class TestGSO(VppTestCase):
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""" GSO Test Case """
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def __init__(self, *args):
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VppTestCase.__init__(self, *args)
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@classmethod
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def setUpClass(self):
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super(TestGSO, self).setUpClass()
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@classmethod
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def tearDownClass(self):
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super(TestGSO, self).tearDownClass()
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def setUp(self):
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super(TestGSO, self).setUp()
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def tearDown(self):
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super(TestGSO, self).tearDown()
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if not self.vpp_dead:
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for i in self.pg_interfaces:
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i.unconfig_ip4()
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i.unconfig_ip6()
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i.admin_down()
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def test_gso(self):
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""" GSO test """
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#
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# Send jumbo frame with gso disabled and DF bit is set
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#
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self.create_pg_interfaces(range(2))
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for i in self.pg_interfaces:
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i.admin_up()
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i.config_ip4()
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i.config_ip6()
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i.disable_ipv6_ra()
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i.resolve_arp()
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i.resolve_ndp()
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p4 = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
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IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4,
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flags='DF') /
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TCP(sport=1234, dport=1234) /
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Raw('\xa5' * 65200))
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rxs = self.send_and_expect(self.pg0, [p4], self.pg0)
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for rx in rxs:
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self.assertEqual(rx[Ether].src, self.pg0.local_mac)
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self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
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self.assertEqual(rx[IP].src, self.pg0.local_ip4)
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self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
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self.assertEqual(rx[ICMP].type, 3) # "dest-unreach"
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self.assertEqual(rx[ICMP].code, 4) # "fragmentation-needed"
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#
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# Send jumbo frame with gso enabled and DF bit is set
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# input and output interfaces support GSO
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#
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self.create_pg_interfaces(range(2, 4), 1, 1460)
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for i in self.pg_interfaces:
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i.admin_up()
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i.config_ip4()
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i.config_ip6()
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i.disable_ipv6_ra()
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i.resolve_arp()
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i.resolve_ndp()
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p41 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
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IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4,
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flags='DF') /
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TCP(sport=1234, dport=1234) /
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Raw('\xa5' * 65200))
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rxs = self.send_and_expect(self.pg2, [p41], self.pg3)
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for rx in rxs:
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self.assertEqual(rx[Ether].src, self.pg3.local_mac)
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self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
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self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
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self.assertEqual(rx[IP].dst, self.pg3.remote_ip4)
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self.assertEqual(rx[IP].len, 65240) # 65200 + 20 (IP) + 20 (TCP)
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self.assertEqual(rx[TCP].sport, 1234)
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self.assertEqual(rx[TCP].dport, 1234)
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#
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# Send jumbo frame with gso enabled only on input interface
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# and DF bit is set. GSO packet will be chunked into gso_size
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# data payload
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#
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self.create_pg_interfaces(range(4, 5))
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for i in self.pg_interfaces:
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i.admin_up()
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i.config_ip4()
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i.config_ip6()
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i.disable_ipv6_ra()
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i.resolve_arp()
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i.resolve_ndp()
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p42 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
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IP(src=self.pg2.remote_ip4, dst=self.pg4.remote_ip4,
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flags='DF') /
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TCP(sport=1234, dport=1234) /
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Raw('\xa5' * 65200))
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rxs = self.send_and_expect(self.pg2, [p42], self.pg4, 45)
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size = 0
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for rx in rxs:
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self.assertEqual(rx[Ether].src, self.pg4.local_mac)
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self.assertEqual(rx[Ether].dst, self.pg4.remote_mac)
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self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
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self.assertEqual(rx[IP].dst, self.pg4.remote_ip4)
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self.assertEqual(rx[TCP].sport, 1234)
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self.assertEqual(rx[TCP].dport, 1234)
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size = rxs[44][TCP].seq + rxs[44][IP].len - 20 - 20
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self.assertEqual(size, 65200)
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#
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# Send jumbo frame with gso enabled only on input interface
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# and DF bit is unset. GSO packet will be fragmented.
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#
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self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0])
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p43 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
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IP(src=self.pg2.remote_ip4, dst=self.pg1.remote_ip4) /
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TCP(sport=1234, dport=1234) /
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Raw('\xa5' * 65200))
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rxs = self.send_and_expect(self.pg2, [p43], self.pg1, 119)
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size = 0
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for rx in rxs:
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rx.show()
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self.assertEqual(rx[Ether].src, self.pg1.local_mac)
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self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
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self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
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self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
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size += rx[IP].len - 20
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size -= 20 # TCP header
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self.assertEqual(size, 65200)
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if __name__ == '__main__':
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unittest.main(testRunner=VppTestRunner)
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