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-rw-r--r--src/dpdk/dpdk.py56
1 files changed, 22 insertions, 34 deletions
diff --git a/src/dpdk/dpdk.py b/src/dpdk/dpdk.py
index f8cbbd81..36f1d055 100644
--- a/src/dpdk/dpdk.py
+++ b/src/dpdk/dpdk.py
@@ -23,7 +23,6 @@ from sys import platform as _platform
import os
import subprocess
import logging
-import locale
from tools import tasks
from conf import settings
@@ -34,14 +33,22 @@ RTE_PCI_TOOL = os.path.join(
settings.getValue('RTE_SDK'), 'tools', 'dpdk_nic_bind.py')
_DPDK_MODULE_MANAGER = ModuleManager()
+
+# declare global NIC variables only as their content might not be known yet
+_NICS = []
+_NICS_PCI = []
+
#
# system management
#
-
def init():
"""Setup system for DPDK.
"""
+ global _NICS
+ global _NICS_PCI
+ _NICS = settings.getValue('NICS')
+ _NICS_PCI = list(nic['pci'] for nic in _NICS)
if not _is_linux():
_LOGGER.error('Not running on a compatible Linux version. Exiting...')
return
@@ -175,54 +182,35 @@ def _bind_nics():
True)
tasks.run_task(['sudo', RTE_PCI_TOOL, '--bind=' + _driver] +
- settings.getValue('WHITELIST_NICS'), _LOGGER,
- 'Binding NICs %s...' %
- settings.getValue('WHITELIST_NICS'),
+ _NICS_PCI, _LOGGER,
+ 'Binding NICs %s...' % _NICS_PCI,
True)
except subprocess.CalledProcessError:
- _LOGGER.error('Unable to bind NICs %s',
- str(settings.getValue('WHITELIST_NICS')))
-
-def _unbind_nics_get_driver():
- """Check what driver the NICs should be bound to
- after unbinding them from DPDK.
- """
- _driver_list = []
- _output = subprocess.check_output([os.path.expanduser(RTE_PCI_TOOL), '--status'])
- _my_encoding = locale.getdefaultlocale()[1]
- for line in _output.decode(_my_encoding).split('\n'):
- for nic in settings.getValue('WHITELIST_NICS'):
- if nic in line:
- _driver_list.append((line.split("unused=", 1)[1]))
- return _driver_list
+ _LOGGER.error('Unable to bind NICs %s', str(_NICS_PCI))
def _unbind_nics():
"""Unbind NICs using the Intel DPDK ``dpdk_nic_bind.py`` tool.
"""
- nic_drivers = _unbind_nics_get_driver()
try:
tasks.run_task(['sudo', RTE_PCI_TOOL, '--unbind'] +
- settings.getValue('WHITELIST_NICS'), _LOGGER,
- 'Unbinding NICs %s...' %
- str(settings.getValue('WHITELIST_NICS')),
+ _NICS_PCI, _LOGGER,
+ 'Unbinding NICs %s...' % str(_NICS_PCI),
True)
except subprocess.CalledProcessError:
- _LOGGER.error('Unable to unbind NICs %s',
- str(settings.getValue('WHITELIST_NICS')))
+ _LOGGER.error('Unable to unbind NICs %s', str(_NICS_PCI))
# Rebind NICs to their original drivers
# using the Intel DPDK ``dpdk_nic_bind.py`` tool.
- for i, nic in enumerate(settings.getValue('WHITELIST_NICS')):
+ for nic in _NICS:
try:
- if nic_drivers[i] != '':
+ if nic['driver']:
tasks.run_task(['sudo', RTE_PCI_TOOL, '--bind',
- nic_drivers[i], nic],
- _LOGGER, 'Binding NIC %s...' %
- nic,
+ nic['driver'], nic['pci']],
+ _LOGGER, 'Binding NIC %s to %s...' %
+ (nic['pci'], nic['driver']),
True)
except subprocess.CalledProcessError:
- _LOGGER.error('Unable to bind NICs %s to drivers %s',
- str(settings.getValue('WHITELIST_NICS')),
- nic_drivers)
+ _LOGGER.error('Unable to bind NIC %s to driver %s',
+ nic['pci'], nic['driver'])
class Dpdk(object):
"""A context manager for the system init/cleanup.