1 # Copyright (c) 2019 Cisco and/or its affiliates.
2 # Licensed under the Apache License, Version 2.0 (the "License");
3 # you may not use this file except in compliance with the License.
4 # You may obtain a copy of the License at:
6 # http://www.apache.org/licenses/LICENSE-2.0
8 # Unless required by applicable law or agreed to in writing, software
9 # distributed under the License is distributed on an "AS IS" BASIS,
10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 # See the License for the specific language governing permissions and
12 # limitations under the License.
15 This module exists to provide the l3fwd test for DPDK on topology nodes.
18 from resources.libraries.python.ssh import SSH
19 from resources.libraries.python.Constants import Constants
20 from resources.libraries.python.topology import NodeType, Topology
23 class L3fwdTest(object):
24 """Test the DPDK l3fwd performance."""
27 def start_the_l3fwd_test(nodes_info, dut_node, dut_if1, dut_if2,
28 nb_cores, lcores_list, queue_nums, jumbo_frames):
30 Execute the l3fwd on the dut_node.
32 :param nodes_info: All the nodes info in the topology file.
33 :param dut_node: Will execute the l3fwd on this node
34 :param dut_if1: The test link interface 1.
35 :param dut_if2: The test link interface 2.
36 :param nb_cores: The cores number for the forwarding
37 :param lcores_list: The lcore list string for the l3fwd routing
38 :param queue_nums: The queues number for the NIC
39 :param jumbo_frames: Indication if the jumbo frames are used (True) or
41 :type nodes_info: dict
46 :type lcores_list: str
48 :type jumbo_frames: bool
50 if dut_node['type'] == NodeType.DUT:
51 adj_mac0, adj_mac1 = L3fwdTest.get_adj_mac(nodes_info, dut_node,
54 list_cores = [int(item) for item in lcores_list.split(',')]
56 # prepare the port config param
57 nb_cores = int(nb_cores)
60 for port in range(0, 2):
61 for queue in range(0, int(queue_nums)):
62 index = 0 if nb_cores == 1 else index
63 port_config += '({port}, {queue}, {core}),'.\
64 format(port=port, queue=queue, core=list_cores[index])
70 cmd = '{fwdir}/tests/dpdk/dpdk_scripts/run_l3fwd.sh ' \
71 '"{lcores}" "{ports}" {mac1} {mac2} {jumbo}'.\
72 format(fwdir=Constants.REMOTE_FW_DIR, lcores=lcores_list,
73 ports=port_config.rstrip(','), mac1=adj_mac0,
74 mac2=adj_mac1, jumbo='yes' if jumbo_frames else 'no')
76 ret_code, _, _ = ssh.exec_command_sudo(cmd, timeout=600)
78 raise Exception('Failed to execute l3fwd test at node {name}'
79 .format(name=dut_node['host']))
82 def get_adj_mac(nodes_info, dut_node, dut_if1, dut_if2):
84 Get adjacency MAC addresses of the DUT node.
86 :param nodes_info: All the nodes info in the topology file.
87 :param dut_node: Will execute the l3fwd on this node
88 :param dut_if1: The test link interface 1.
89 :param dut_if2: The test link interface 2.
90 :type nodes_info: dict
94 :returns: Returns MAC addresses of adjacency DUT nodes.
99 if_pci0 = Topology.get_interface_pci_addr(dut_node, if_key0)
100 if_pci1 = Topology.get_interface_pci_addr(dut_node, if_key1)
102 # detect which is the port 0
103 if min(if_pci0, if_pci1) != if_pci0:
104 if_key0, if_key1 = if_key1, if_key0
105 L3fwdTest.patch_l3fwd(dut_node, 'patch_l3fwd_flip_routes')
107 adj_node0, adj_if_key0 = Topology.get_adjacent_node_and_interface( \
108 nodes_info, dut_node, if_key0)
109 adj_node1, adj_if_key1 = Topology.get_adjacent_node_and_interface( \
110 nodes_info, dut_node, if_key1)
112 adj_mac0 = Topology.get_interface_mac(adj_node0, adj_if_key0)
113 adj_mac1 = Topology.get_interface_mac(adj_node1, adj_if_key1)
115 return adj_mac0, adj_mac1
118 def patch_l3fwd(node, patch):
120 Patch l3fwd application and recompile.
122 :param node: Dictionary created from topology.
123 :param patch: Patch to apply.
126 :raises RuntimeError: Patching of l3fwd failed.
128 arch = Topology.get_node_arch(node)
133 ret_code, _, _ = ssh.exec_command(
134 '{fwdir}/tests/dpdk/dpdk_scripts/patch_l3fwd.sh {arch} '
135 '{fwdir}/tests/dpdk/dpdk_scripts/{patch}'.
136 format(fwdir=Constants.REMOTE_FW_DIR, arch=arch, patch=patch),
140 raise RuntimeError('Patch of l3fwd failed.')