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.Constants import Constants
19 from resources.libraries.python.ssh import SSH
20 from resources.libraries.python.topology import NodeType, Topology
24 """Test the DPDK l3fwd performance."""
27 def start_the_l3fwd_test(
28 nodes_info, dut_node, dut_if1, dut_if2, nb_cores, lcores_list,
29 queue_nums, jumbo_frames):
31 Execute the l3fwd on the dut_node.
33 :param nodes_info: All the nodes info in the topology file.
34 :param dut_node: Will execute the l3fwd on this node
35 :param dut_if1: The test link interface 1.
36 :param dut_if2: The test link interface 2.
37 :param nb_cores: The cores number for the forwarding
38 :param lcores_list: The lcore list string for the l3fwd routing
39 :param queue_nums: The queues number for the NIC
40 :param jumbo_frames: Indication if the jumbo frames are used (True) or
42 :type nodes_info: dict
47 :type lcores_list: str
49 :type jumbo_frames: bool
51 if dut_node[u"type"] == NodeType.DUT:
52 adj_mac0, adj_mac1 = L3fwdTest.get_adj_mac(
53 nodes_info, dut_node, dut_if1, dut_if2
56 list_cores = [int(item) for item in lcores_list.split(u",")]
58 # prepare the port config param
59 nb_cores = int(nb_cores)
62 for port in range(0, 2):
63 for queue in range(0, int(queue_nums)):
64 index = 0 if nb_cores == 1 else index
65 port_config += f"({port}, {queue}, {list_cores[index]}),"
71 cmd = f"{Constants.REMOTE_FW_DIR}/tests/dpdk/dpdk_scripts" \
72 f"/run_l3fwd.sh \"{lcores_list}\" " \
73 f"\"{port_config.rstrip(u',')}\" " \
74 f"{adj_mac0} {adj_mac1} {u'yes' if jumbo_frames else u'no'}"
76 ret_code, _, _ = ssh.exec_command_sudo(cmd, timeout=600)
79 f"Failed to execute l3fwd test at node {dut_node[u'host']}"
83 def get_adj_mac(nodes_info, dut_node, dut_if1, dut_if2):
85 Get adjacency MAC addresses of the DUT node.
87 :param nodes_info: All the nodes info in the topology file.
88 :param dut_node: Will execute the l3fwd on this node
89 :param dut_if1: The test link interface 1.
90 :param dut_if2: The test link interface 2.
91 :type nodes_info: dict
95 :returns: Returns MAC addresses of adjacency DUT nodes.
100 if_pci0 = Topology.get_interface_pci_addr(dut_node, if_key0)
101 if_pci1 = Topology.get_interface_pci_addr(dut_node, if_key1)
103 # detect which is the port 0
104 if min(if_pci0, if_pci1) != if_pci0:
105 if_key0, if_key1 = if_key1, if_key0
106 L3fwdTest.patch_l3fwd(dut_node, u"patch_l3fwd_flip_routes")
108 adj_node0, adj_if_key0 = Topology.get_adjacent_node_and_interface(
109 nodes_info, dut_node, if_key0
111 adj_node1, adj_if_key1 = Topology.get_adjacent_node_and_interface(
112 nodes_info, dut_node, if_key1
115 adj_mac0 = Topology.get_interface_mac(adj_node0, adj_if_key0)
116 adj_mac1 = Topology.get_interface_mac(adj_node1, adj_if_key1)
118 return adj_mac0, adj_mac1
121 def patch_l3fwd(node, patch):
123 Patch l3fwd application and recompile.
125 :param node: Dictionary created from topology.
126 :param patch: Patch to apply.
129 :raises RuntimeError: Patching of l3fwd failed.
131 arch = Topology.get_node_arch(node)
136 ret_code, _, _ = ssh.exec_command(
137 f"{Constants.REMOTE_FW_DIR}/tests/dpdk/dpdk_scripts/patch_l3fwd.sh "
138 f"{arch} {Constants.REMOTE_FW_DIR}/tests/dpdk/dpdk_scripts/{patch}",
143 raise RuntimeError(u"Patch of l3fwd failed.")