4 files changed, 124 insertions, 0 deletions
diff --git a/vstf/vstf/agent/env/driver_plugins/__init__.py b/vstf/vstf/agent/env/driver_plugins/__init__.py
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/vstf/vstf/agent/env/driver_plugins/__init__.py
diff --git a/vstf/vstf/agent/env/driver_plugins/manager.py b/vstf/vstf/agent/env/driver_plugins/manager.py
new file mode 100755
index 00000000..3bb3fadd
--- /dev/null
+++ b/vstf/vstf/agent/env/driver_plugins/manager.py
@@ -0,0 +1,40 @@
+"""
+Created on 2015-9-15
+
+@author: y00228926
+"""
+import stevedore
+
+
+class DriverPluginManager(object):
+    def __init__(self):
+        self.plugins = {}
+        self.mgr = stevedore.extension.ExtensionManager(namespace="drivers.plugins", invoke_on_load=True)
+
+    def load(self, drivers):
+        plugin = self.determine_driver_type(drivers)
+        ext = self.mgr[plugin]
+        ext.obj.load(drivers)
+        return True
+
+    def clean(self):
+        self.mgr.map(self._clean)
+        return True
+
+    def _clean(self, ext, *args, **kwargs):
+        ext.obj.clean()
+
+    def get_all_supported_drivers(self):
+        if not self.plugins:
+            for ext_name in self.mgr.names():
+                ext = self.mgr[ext_name]
+                self.plugins[ext_name] = ext.obj.get_supported_drivers()
+        return self.plugins
+
+    def determine_driver_type(self, drivers):
+        s = set(drivers)
+        for plugin, supported in self.get_all_supported_drivers().items():
+            if not (s - set(supported)):
+                return plugin
+        else:
+            raise Exception('unspported drivers: %s' % drivers)
diff --git a/vstf/vstf/agent/env/driver_plugins/model.py b/vstf/vstf/agent/env/driver_plugins/model.py
new file mode 100755
index 00000000..3a0b1845
--- /dev/null
+++ b/vstf/vstf/agent/env/driver_plugins/model.py
@@ -0,0 +1,38 @@
+"""
+Created on 2015-9-15
+
+@author: y00228926
+"""
+from abc import ABCMeta
+from abc import abstractmethod
+
+
+class DriverPlugin:
+    __metaclass__ = ABCMeta
+
+    @abstractmethod
+    def __init__(self):
+        """don't pass in any args for __init__.
+        """
+
+    @abstractmethod
+    def clean(self):
+        """implement this clean function to clean environment before and after calling any other functions.
+        
+        """
+        pass
+
+    @abstractmethod
+    def load(self, drivers):
+        """load driver modules.
+        
+        :param list    drivers:list of modules to be inserted. for example:[ixgbe,vhost_net]
+        
+        """
+        pass
+
+    @abstractmethod
+    def get_supported_drivers(self):
+        """return a list of supported driver modules.
+        """
+        pass
diff --git a/vstf/vstf/agent/env/driver_plugins/origin_driver.py b/vstf/vstf/agent/env/driver_plugins/origin_driver.py
new file mode 100755
index 00000000..850d7851
--- /dev/null
+++ b/vstf/vstf/agent/env/driver_plugins/origin_driver.py
@@ -0,0 +1,46 @@
+"""
+Created on 2015-10-12
+
+@author: y00228926
+"""
+from vstf.agent.env.driver_plugins import model
+from vstf.common.utils import check_and_rmmod, check_call
+
+
+class OriginDriverPlugin(model.DriverPlugin):
+    """
+    implement for operating linux origin driver modules.
+    """
+
+    def __init__(self):
+        """
+        list all origin drivers in self.origin_drivers
+        """
+        self.origin_drivers = ['ixgbe', 'bnx2x', 'i40e', 'be2net', 'vhost_net']
+
+    def clean(self):
+        """clean drivers list in self.origin_drivers.
+        
+        """
+        for mod in self.origin_drivers:
+            check_and_rmmod(mod)
+
+        check_and_rmmod('tun')
+        return True
+
+    def load(self, drivers):
+        """insmod drivers
+        
+        :param list    drivers:list of drivers link ['ixgbe','vhost_net']
+        """
+        # load implicit 'tun' module dependency for vhost_net
+        if 'vhost_net' in drivers:
+            check_call("modprobe tun", shell=True)
+
+        for drv in drivers:
+            check_call("modprobe %s" % drv, shell=True)
+
+        return True
+
+    def get_supported_drivers(self):
+        return self.origin_drivers