CreateDriver returns a volume driver by its name and increments RefCount.

GetAllDrivers lists all the registered drivers.

GetDriver returns a volume driver by its name.

GetDriverList returns list of volume drivers registered.

NewVolumeDriver returns a driver has the given name mapped on the given client.

Register associates the given driver to the given name, checking if the name is already associated.

RegisterPluginGetter sets the plugingetter.

RemoveDriver returns a volume driver by its name and decrements RefCount.

Unregister dissociates the name from its driver, if the association exists.