Vanilla OVS support implementation

JIRA: VSPERF-57

This patch implements Vanilla OVS support.It contains:
* New IVswitch implementation: OvsVanilla,
* New configuration contants,
* New mandatory configuration variable: VSWITCH_VANILLA_PHY_PORT_NAMES
for Vanilla OVS has been added,
* Virtual ports are not yet implemented,
* Some kernel modules wrapping methods has been moved from dpdk.py to
tools.
* Fixed bug where ovsdb hasn't been killed at the end of test case run on
some platforms.

Change-Id: I21a0d84dbc4004aae564d5547387a2563f2d1e5b
Signed-off-by: Michal Weglicki <michalx.weglicki@intel.com>
Reviewed-by: Eugene Snider <Eugene.Snider@huawei.com>
Reviewed-by: Gurpreet Singh <gurpreet.singh@spirent.com>
Reviewed-by: Tv Rao <tv.rao@freescale.com>
Reviewed-by: Martin Klozik <martinx.klozik@intel.com>
Reviewed-by: Billy O Mahony <billy.o.mahony@intel.com>
Reviewed-by: Maryam Tahhan <maryam.tahhan@intel.com>

1 files changed, 5 insertions, 21 deletions

diff --git a/src/dpdk/dpdk.py b/src/dpdk/dpdk.py
index 9b3d1385..01e1fb61 100644
--- a/src/dpdk/dpdk.py
+++ b/src/dpdk/dpdk.py
@@ -27,11 +27,14 @@ import locale
 
 from tools import tasks
 from conf import settings
+from tools.module_manager import ModuleManager, KernelModuleInsertMode
 
 _LOGGER = logging.getLogger(__name__)
 RTE_PCI_TOOL = os.path.join(
     settings.getValue('RTE_SDK'), 'tools', 'dpdk_nic_bind.py')
 
+_DPDK_MODULE_MANAGER = ModuleManager(KernelModuleInsertMode.MODPROBE)
+
 #
 # system management
 #
@@ -192,16 +195,8 @@ def _is_module_inserted(module):
 def _insert_modules():
     """Ensure required modules are inserted on system.
     """
-    for module in settings.getValue('SYS_MODULES'):
-        if _is_module_inserted(module):
-            continue
 
-        try:
-            tasks.run_task(['sudo', 'modprobe', module], _LOGGER,
-                           'Inserting module \'%s\'...' % module, True)
-        except subprocess.CalledProcessError:
-            _LOGGER.error('Unable to insert module \'%s\'.', module)
-            raise  # fail catastrophically
+    _DPDK_MODULE_MANAGER.insert_modules(settings.getValue('SYS_MODULES'))
 
     mod_path_prefix = settings.getValue('OVS_DIR')
     _insert_module_group('OVS_MODULES', mod_path_prefix)
@@ -237,18 +232,7 @@ def _remove_modules():
     _remove_module_group('OVS_MODULES')
     _remove_module_group('DPDK_MODULES')
 
-    for module in settings.getValue('SYS_MODULES'):
-        # first check if module is loaded
-        if not _is_module_inserted(module):
-            continue
-
-        try:
-            tasks.run_task(['sudo', 'rmmod', module], _LOGGER,
-                           'Removing module \'%s\'...' % module, True)
-        except subprocess.CalledProcessError:
-            _LOGGER.error('Unable to remove module \'%s\'.', module)
-            continue
-
+    _DPDK_MODULE_MANAGER.remove_modules()
 
 def _remove_module_group(module_group):
     """Ensure all modules in a group are removed from the system.