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.
16 This module exists to provide the l3fwd test for DPDK on topology nodes.
19 from robot.api import logger
21 from resources.libraries.python.ssh import SSH
22 from resources.libraries.python.constants import Constants as con
23 from resources.libraries.python.topology import Topology
25 class L3fwdTest(object):
26 """Test the DPDK l3fwd performance."""
29 def start_the_l3fwd_test(nodes_info, dut_node, dut_if1, dut_if2,
30 nb_cores, lcores_list, queue_nums, jumbo_frames):
32 Execute the l3fwd on the dut_node.
34 :param nodes_info: All the nodes info in the topology file.
35 :param dut_node: Will execute the l3fwd on this node
36 :param dut_if1: The test link interface 1.
37 :param dut_if2: The test link interface 2.
38 :param nb_cores: The cores number for the forwarding
39 :param lcores_list: The lcore list string for the l3fwd routing
40 :param queue_nums: The queues number for the NIC
41 :param jumbo_frames: Is jumbo frames or not. Accepted: yes / no
42 :type nodes_info: dict
47 :type lcores_list: str
49 :type jumbo_frames: str
55 if_pci0 = Topology.get_interface_pci_addr(dut_node, if_key0)
56 if_pci1 = Topology.get_interface_pci_addr(dut_node, if_key1)
58 # detect which is the port 0
59 if min(if_pci0, if_pci1) != if_pci0:
60 if_key0, if_key1 = if_key1, if_key0
61 if_pci0, if_pci1 = if_pci1, if_pci0
63 adj_node0, adj_if_key0 = Topology.get_adjacent_node_and_interface( \
64 nodes_info, dut_node, if_key0)
65 adj_node1, adj_if_key1 = Topology.get_adjacent_node_and_interface( \
66 nodes_info, dut_node, if_key1)
68 adj_mac0 = Topology.get_interface_mac(adj_node0, adj_if_key0)
69 adj_mac1 = Topology.get_interface_mac(adj_node1, adj_if_key1)
71 list_cores = lcores_list.split(',')
73 # prepare the port config param
76 for port in range(0, 2):
77 for queue in range(0, int(queue_nums)):
78 if int(nb_cores) == 1:
80 temp_str = '({0}, {1}, {2}),'.format(port, queue, \
81 int(list_cores[index]))
83 temp_str = '({0}, {1}, {2}),'.format(port, queue, \
84 int(list_cores[index]))
86 port_config += temp_str
89 port_config_param = port_config.rstrip(',')
94 cmd = 'cd {0}/tests/dpdk/dpdk_scripts/ && ./run_l3fwd.sh ' \
95 '"{1}" "{2}" {3} {4} {5}'.format(con.REMOTE_FW_DIR, lcores_list, \
96 port_config_param, adj_mac0, adj_mac1, jumbo_frames)
98 (ret_code, _, stderr) = ssh.exec_command(cmd, timeout=600)
100 logger.error('Execute the l3fwd error: {0}'.format(stderr))
101 raise Exception('Failed to execute l3fwd test at node {0}'
102 .format(dut_node['host']))