1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
# Copyright (c) 2019 Cisco and/or its affiliates.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Dpdk Utilities Library."""
from resources.libraries.python.ssh import SSH, exec_cmd_no_error
class DpdkUtil(object):
"""Utilities for DPDK."""
@staticmethod
def get_eal_options(**args):
"""Create EAL parameters string.
:param args: List of testpmd parameters.
:type args: dict
:returns: EAL parameters string.
:rtype: str
"""
eal_version = '-v'
# Set the hexadecimal bitmask of the cores to run on.
eal_corelist = '-l {}'.format(
args.get('eal_corelist', ''))\
if args.get('eal_corelist', '') else ''
# Set master core.
eal_master_core = '--master-lcore 0'
# Load an external driver. Multiple -d options are allowed.
eal_driver = '-d /usr/lib/librte_pmd_virtio.so'\
if args.get('eal_driver', True) else ''
# Run in memory.
eal_in_memory = '--in-memory'\
if args.get('eal_in_memory', False) else ''
return ' '.join([eal_version,
eal_corelist,
eal_master_core,
eal_driver,
eal_in_memory])
@staticmethod
def get_pmd_options(**args):
"""Create PMD parameters string.
:param args: List of testpmd parameters.
:type args: dict
:returns: PMD parameters string.
:rtype: str
"""
# Set the forwarding mode: io, mac, mac_retry, mac_swap, flowgen,
# rxonly, txonly, csum, icmpecho, ieee1588
pmd_fwd_mode = '--forward-mode={}'.format(
args.get('pmd_fwd_mode', 'io')) \
if args.get('pmd_fwd_mode', 'io') else ''
# Set the number of packets per burst to N.
pmd_burst = '--burst=64'
# Set the number of descriptors in the TX rings to N.
pmd_txd = '--txd={}'.format(
args.get('pmd_txd', '1024')) \
if args.get('pmd_txd', '1024') else ''
# Set the number of descriptors in the RX rings to N.
pmd_rxd = '--rxd={}'.format(
args.get('pmd_rxd', '1024')) \
if args.get('pmd_rxd', '1024') else ''
# Set the number of queues in the TX to N.
pmd_txq = '--txq={}'.format(
args.get('pmd_txq', '1')) \
if args.get('pmd_txq', '1') else ''
# Set the number of queues in the RX to N.
pmd_rxq = '--rxq={}'.format(
args.get('pmd_rxq', '1')) \
if args.get('pmd_rxq', '1') else ''
# Set the hexadecimal bitmask of TX offloads.
pmd_tx_offloads = '--txqflags=0xf00'\
if args.get('pmd_tx_offloads', True) else ''
# Set the number of mbufs to be allocated in the mbuf pools.
pmd_total_num_mbufs = '--total-num-mbufs={}'.format(
args.get('pmd_num_mbufs', '')) \
if args.get('pmd_num_mbufs', '') else ''
# Set the max packet length.
pmd_max_pkt_len = '--max-pkt-len={}'.format(
args.get("pmd_max_pkt_len", "")) \
if args.get("pmd_max_pkt_len", "") else ""
# Disable hardware VLAN.
pmd_disable_hw_vlan = '--disable-hw-vlan'\
if args.get('pmd_disable_hw_vlan', True) else ''
# Set the MAC address XX:XX:XX:XX:XX:XX of the peer port N
pmd_eth_peer_0 = '--eth-peer={}'.format(
args.get('pmd_eth_peer_0', ''))\
if args.get('pmd_eth_peer_0', '') else ''
pmd_eth_peer_1 = '--eth-peer={}'.format(
args.get('pmd_eth_peer_1', ''))\
if args.get('pmd_eth_peer_1', '') else ''
# Set the number of forwarding cores based on coremask.
pmd_nb_cores = '--nb-cores={}'.format(
args.get('pmd_nb_cores', ''))\
if args.get('pmd_nb_cores', '') else ''
return ' '.join([pmd_fwd_mode,
pmd_burst,
pmd_txd,
pmd_rxd,
pmd_txq,
pmd_rxq,
pmd_tx_offloads,
pmd_total_num_mbufs,
pmd_disable_hw_vlan,
pmd_eth_peer_0,
pmd_eth_peer_1,
pmd_max_pkt_len,
pmd_nb_cores])
@staticmethod
def get_testpmd_cmdline(**kwargs):
"""Get DPDK testpmd command line arguments.
:param args: Key-value testpmd parameters.
:type args: dict
:returns: Command line string.
:rtype: str
"""
eal_options = DpdkUtil.get_eal_options(**kwargs)
pmd_options = DpdkUtil.get_pmd_options(**kwargs)
return 'testpmd {0} -- {1}'.format(eal_options, pmd_options)
@staticmethod
def dpdk_testpmd_start(node, **kwargs):
"""Start DPDK testpmd app on VM node.
:param node: VM Node to start testpmd on.
:param args: Key-value testpmd parameters.
:type node: dict
:type args: dict
:returns: nothing
"""
eal_options = DpdkUtil.get_eal_options(**kwargs)
pmd_options = DpdkUtil.get_pmd_options(**kwargs)
ssh = SSH()
ssh.connect(node)
cmd = "/start-testpmd.sh {0} -- {1}".format(eal_options, pmd_options)
exec_cmd_no_error(node, cmd, sudo=True)
ssh.disconnect(node)
@staticmethod
def dpdk_testpmd_stop(node):
"""Stop DPDK testpmd app on node.
:param node: Node to stop testpmd on.
:type node: dict
:returns: nothing
"""
ssh = SSH()
ssh.connect(node)
cmd = "/stop-testpmd.sh"
exec_cmd_no_error(node, cmd, sudo=True)
ssh.disconnect(node)
|
