"""Dpdk Utilities Library."""
-from resources.libraries.python.ssh import SSH, exec_cmd_no_error
+from resources.libraries.python.OptionString import OptionString
+from resources.libraries.python.ssh import exec_cmd_no_error
class DpdkUtil(object):
"""Utilities for DPDK."""
@staticmethod
- def get_eal_options(**args):
- """Create EAL parameters string.
+ def get_eal_options(**kwargs):
+ """Create EAL parameters options (including -v).
- :param args: List of testpmd parameters.
- :type args: dict
- :returns: EAL parameters string.
- :rtype: str
+ :param kwargs: Dict of testpmd parameters.
+ :type kwargs: dict
+ :returns: EAL parameters.
+ :rtype: OptionString
"""
- eal_version = '-v'
+ options = OptionString(prefix='-')
+ options.add('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 ''
+ options.add_with_value_from_dict('l', 'eal_corelist', kwargs)
# Set master core.
- eal_master_core = '--master-lcore 0'
+ options.add_with_value('-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])
+ options.add_with_value_if_from_dict(
+ 'd', '/usr/lib/librte_pmd_virtio.so', 'eal_driver', kwargs, True)
+ options.add_if_from_dict(
+ '-in-memory', 'eal_in_memory', kwargs, False)
+ return options
@staticmethod
- def get_pmd_options(**args):
- """Create PMD parameters string.
+ def get_pmd_options(**kwargs):
+ """Create PMD parameters options (without --).
- :param args: List of testpmd parameters.
- :type args: dict
- :returns: PMD parameters string.
- :rtype: str
+ :param kwargs: List of testpmd parameters.
+ :type kwargs: dict
+ :returns: PMD parameters.
+ :rtype: OptionString
"""
+ options = OptionString(prefix='--')
# 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 ''
+ options.add_equals_from_dict(
+ 'forward-mode', 'pmd_fwd_mode', kwargs, 'io')
# Set the number of packets per burst to N.
- pmd_burst = '--burst=64'
+ options.add_equals('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 ''
+ options.add_equals_from_dict('txd', 'pmd_txd', kwargs, 1024)
# 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 ''
+ options.add_equals_from_dict('rxd', 'pmd_rxd', kwargs, 1024)
# 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 ''
+ options.add_equals_from_dict('txq', 'pmd_txq', kwargs, 1)
# 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 ''
+ options.add_equals_from_dict('rxq', 'pmd_rxq', kwargs, 1)
+ # Set the hexadecimal bitmask of offloads.
+ options.add_equals_if_from_dict(
+ 'txqflags', '0xf00', 'pmd_tx_offloads', kwargs, True)
# 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 ""
+ options.add_equals_from_dict('total-num-mbufs', 'pmd_num_mbufs', kwargs)
# Disable hardware VLAN.
- pmd_disable_hw_vlan = '--disable-hw-vlan'\
- if args.get('pmd_disable_hw_vlan', True) else ''
+ options.add_if_from_dict(
+ 'disable-hw-vlan', 'pmd_disable_hw_vlan', kwargs, True)
# 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 ''
+ options.add_equals_from_dict('eth-peer', 'pmd_eth-peer_0', kwargs)
+ options.add_equals_from_dict('eth-peer', 'pmd_eth-peer_1', kwargs)
+ # Set the max packet length.
+ options.add_equals_from_dict('max-pkt-len', 'pmd_max_pkt_len', kwargs)
# 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])
+ options.add_equals_from_dict('nb-cores', 'pmd_nb_cores', kwargs)
+ return options
@staticmethod
def get_testpmd_cmdline(**kwargs):
:param args: Key-value testpmd parameters.
:type args: dict
:returns: Command line string.
- :rtype: str
+ :rtype: OptionString
"""
- eal_options = DpdkUtil.get_eal_options(**kwargs)
- pmd_options = DpdkUtil.get_pmd_options(**kwargs)
-
- return 'testpmd {0} -- {1}'.format(eal_options, pmd_options)
+ options = OptionString()
+ options.add('testpmd')
+ options.extend(DpdkUtil.get_eal_options(**kwargs))
+ options.add('--')
+ options.extend(DpdkUtil.get_pmd_options(**kwargs))
+ return options
@staticmethod
def dpdk_testpmd_start(node, **kwargs):
:param node: VM Node to start testpmd on.
:param args: Key-value testpmd parameters.
:type node: dict
- :type args: dict
- :returns: nothing
+ :type kwargs: dict
"""
- 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)
+ cmd_options = OptionString()
+ cmd_options.add("/start-testpmd.sh")
+ cmd_options.extend(DpdkUtil.get_eal_options(**kwargs))
+ cmd_options.add('--')
+ cmd_options.extend(DpdkUtil.get_pmd_options(**kwargs))
+ exec_cmd_no_error(node, cmd_options, sudo=True, disconnect=True)
@staticmethod
def dpdk_testpmd_stop(node):
: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)
+ cmd = "/stop-testpmd.sh" # Completed string, simpler than OptionString.
+ exec_cmd_no_error(node, cmd, sudo=True, disconnect=True)
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