def get_dpdk_devargs(ifname, noop):
if not noop:
vendor_id = common.get_vendor_id(ifname)
device_id = common.get_device_id(ifname)
if vendor_id == "0x15b3":
logger.info("Getting devargs for Mellanox cards")
if device_id == "0x1007":
# Some NICs (i.e. Mellanox ConnectX-3) have only one PCI
# address associated with multiple ports. Using a PCI
# device won’t work. Instead, we should use
# "class=eth,mac=<MAC>"
dpdk_devargs = f"class=eth,mac={common.interface_mac(ifname)}"
elif is_active_nic(ifname):
# Other Mellanox devices are active and they are not stored
# in dpdk_mapping.yaml file, so we need to get their pci
# address with ethtool.
dpdk_devargs = get_pci_address(ifname, noop)
elif common.is_vf_by_name(ifname):
# For Mellanox devices the VFs bound with DPDK shall
# be treated the same as VFs of other devices
dpdk_devargs = get_pci_address(ifname, noop)
else:
msg = ("Unable to get devargs for interface %s" % ifname)
raise InvalidInterfaceException(msg)
else:
logger.info("Getting stored PCI address as devarg")
dpdk_devargs = get_stored_pci_address(ifname, noop)
logger.debug("Devargs found: %s" % (dpdk_devargs))
return dpdk_devargs
def test_get_device_id_exception(self):
mocked_open = mock.mock_open()
mocked_open.side_effect = IOError
with mock.patch('os_net_config.utils.open', mocked_open, create=True):
device = common.get_device_id('nic2')
self.assertEqual(None, device)
def test_get_device_id_success(self):
mocked_open = mock.mock_open(read_data='0x1003\n')
with mock.patch('os_net_config.common.open', mocked_open, create=True):
device = common.get_device_id('nic2')
self.assertEqual('0x1003', device)