3 files changed, 36 insertions, 1 deletions
diff --git a/vswitches/ovs.py b/vswitches/ovs.py
index b6d64fb7..12620e22 100644
--- a/vswitches/ovs.py
+++ b/vswitches/ovs.py
@@ -95,6 +95,14 @@ class IVSwitchOvs(IVSwitch, tasks.Process):
         """
         pass
 
+    # Method could be a function
+    # pylint: disable=no-self-use
+    def get_version(self):
+        """See IVswitch for general description
+        """
+        # OVS version can be read offline
+        return []
+
     def stop(self):
         """See IVswitch for general description
         """
diff --git a/vswitches/vpp_dpdk_vhost.py b/vswitches/vpp_dpdk_vhost.py
index d0d9e2ac..68375538 100644
--- a/vswitches/vpp_dpdk_vhost.py
+++ b/vswitches/vpp_dpdk_vhost.py
@@ -25,6 +25,7 @@ from src.dpdk import dpdk
 from conf import settings as S
 from vswitches.vswitch import IVSwitch
 from tools import tasks
+from tools.version import Version
 
 # pylint: disable=too-many-public-methods
 class VppDpdkVhost(IVSwitch, tasks.Process):
@@ -110,7 +111,6 @@ class VppDpdkVhost(IVSwitch, tasks.Process):
         self._logger.debug("VPP CLI args: %s", cli_args)
         return cli_args
 
-
     def start(self):
         """Activates DPDK kernel modules and starts VPP
 
@@ -156,6 +156,25 @@ class VppDpdkVhost(IVSwitch, tasks.Process):
         # has not been terminated yet
         tasks.Process.kill(self, signal, sleep)
 
+    def get_version(self):
+        """See IVswitch for general description
+        """
+        versions = []
+        output = self.run_vppctl(['show', 'version', 'verbose'])
+        if output[1]:
+            self._logger.warning("VPP version can not be read!")
+            return versions
+
+        match = re.search(r'Version:\s*(.+)', output[0])
+        if match:
+            versions.append(Version(S.getValue('VSWITCH'), match.group(1)))
+
+        match = re.search(r'DPDK Version:\s*DPDK (.+)', output[0])
+        if match:
+            versions.append(Version('dpdk', match.group(1)))
+
+        return versions
+
     def add_switch(self, switch_name, dummy_params=None):
         """See IVswitch for general description
         """
diff --git a/vswitches/vswitch.py b/vswitches/vswitch.py
index 893bd1ff..dd69e6d9 100644
--- a/vswitches/vswitch.py
+++ b/vswitches/vswitch.py
@@ -20,6 +20,14 @@ class IVSwitch(object):
 
     Other methods are called only between start() and stop()
     """
+    def get_version(self):
+        """Return version of vSwitch and DPDK (if used by vSwitch)
+           This method should be implemented in case, that version
+           of vswitch or DPDK can be read only during vSwitch runtime.
+           Otherwise it can be implemented inside tools/systeminfo.py.
+        """
+        raise NotImplementedError()
+
     def start(self):
         """Start the vSwitch