1 # Copyright (c) 2018 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
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: Indication if the jumbo frames are used (True) or
40 :type nodes_info: dict
45 :type lcores_list: str
47 :type jumbo_frames: bool
49 if dut_node['type'] == NodeType.DUT:
50 adj_mac0, adj_mac1 = L3fwdTest.get_adj_mac(nodes_info, dut_node,
53 list_cores = lcores_list.split(',')
55 # prepare the port config param
58 for port in range(0, 2):
59 for queue in range(0, int(queue_nums)):
60 if int(nb_cores) == 1:
62 temp_str = '({port}, {queue}, {core}),'.\
63 format(port=port, queue=queue,
64 core=int(list_cores[index]))
66 temp_str = '({port}, {queue}, {core}),'.\
67 format(port=port, queue=queue,
68 core=int(list_cores[index]))
70 port_config += temp_str
76 jumbo = 'yes' if jumbo_frames else 'no'
77 cmd = '{fwdir}/tests/dpdk/dpdk_scripts/run_l3fwd.sh ' \
78 '"{lcores}" "{ports}" {mac1} {mac2} {jumbo}'.\
79 format(fwdir=Constants.REMOTE_FW_DIR, lcores=lcores_list,
80 ports=port_config.rstrip(','), mac1=adj_mac0,
81 mac2=adj_mac1, jumbo=jumbo)
83 ret_code, _, _ = ssh.exec_command_sudo(cmd, timeout=600)
85 raise Exception('Failed to execute l3fwd test at node {name}'
86 .format(name=dut_node['host']))
89 def get_adj_mac(nodes_info, dut_node, dut_if1, dut_if2):
91 Get adjacency MAC addresses of the DUT node.
93 :param nodes_info: All the nodes info in the topology file.
94 :param dut_node: Will execute the l3fwd on this node
95 :param dut_if1: The test link interface 1.
96 :param dut_if2: The test link interface 2.
97 :type nodes_info: dict
101 :returns: Returns MAC addresses of adjacency DUT nodes.
106 if_pci0 = Topology.get_interface_pci_addr(dut_node, if_key0)
107 if_pci1 = Topology.get_interface_pci_addr(dut_node, if_key1)
109 # detect which is the port 0
110 if min(if_pci0, if_pci1) != if_pci0:
111 if_key0, if_key1 = if_key1, if_key0
113 adj_node0, adj_if_key0 = Topology.get_adjacent_node_and_interface( \
114 nodes_info, dut_node, if_key0)
115 adj_node1, adj_if_key1 = Topology.get_adjacent_node_and_interface( \
116 nodes_info, dut_node, if_key1)
118 adj_mac0 = Topology.get_interface_mac(adj_node0, adj_if_key0)
119 adj_mac1 = Topology.get_interface_mac(adj_node1, adj_if_key1)
121 return adj_mac0, adj_mac1
124 def patch_l3fwd(node, patch):
126 Patch l3fwd application and recompile.
128 :param node: Dictionary created from topology.
129 :param patch: Patch to apply.
132 :raises RuntimeError: Patching of l3fwd failed.
134 arch = Topology.get_node_arch(node)
139 ret_code, _, _ = ssh.exec_command(
140 '{fwdir}/tests/dpdk/dpdk_scripts/patch_l3fwd.sh {arch} '
141 '{fwdir}/tests/dpdk/dpdk_scripts/{patch}'.
142 format(fwdir=Constants.REMOTE_FW_DIR, arch=arch, patch=patch),
146 raise RuntimeError('Patch of l3fwd failed.')