1 # Copyright (c) 2016 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 as con
20 from resources.libraries.python.topology import Topology
22 class L3fwdTest(object):
23 """Test the DPDK l3fwd performance."""
26 def start_the_l3fwd_test(nodes_info, dut_node, dut_if1, dut_if2,
27 nb_cores, lcores_list, queue_nums, jumbo_frames):
29 Execute the l3fwd on the dut_node.
31 :param nodes_info: All the nodes info in the topology file.
32 :param dut_node: Will execute the l3fwd on this node
33 :param dut_if1: The test link interface 1.
34 :param dut_if2: The test link interface 2.
35 :param nb_cores: The cores number for the forwarding
36 :param lcores_list: The lcore list string for the l3fwd routing
37 :param queue_nums: The queues number for the NIC
38 :param jumbo_frames: Is jumbo frames or not. Accepted: yes / no
39 :type nodes_info: dict
44 :type lcores_list: str
46 :type jumbo_frames: str
49 adj_mac0, adj_mac1 = L3fwdTest.get_adj_mac(nodes_info, dut_node,
52 list_cores = lcores_list.split(',')
54 # prepare the port config param
57 for port in range(0, 2):
58 for queue in range(0, int(queue_nums)):
59 if int(nb_cores) == 1:
61 temp_str = '({0}, {1}, {2}),'.format(port, queue, \
62 int(list_cores[index]))
64 temp_str = '({0}, {1}, {2}),'.format(port, queue, \
65 int(list_cores[index]))
67 port_config += temp_str
73 cmd = 'cd {0}/tests/dpdk/dpdk_scripts/ && ./run_l3fwd.sh ' \
74 '"{1}" "{2}" {3} {4} {5}'.format(con.REMOTE_FW_DIR, lcores_list, \
75 port_config.rstrip(','), adj_mac0, adj_mac1, jumbo_frames)
77 (ret_code, _, _) = ssh.exec_command(cmd, timeout=600)
79 raise Exception('Failed to execute l3fwd test at node {0}'
80 .format(dut_node['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
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