Refactor check_configure_sriov to prevent dublicate adding sriov_pfs

Cuurent implementation of adding objects is dublicating adding
objects that have sriov_pf members.
The patch refactors check_configure_sriov to check if the object
itself or any of its tree members are sriov_pf so adding that object
will happen once

Closes-Bug: #2020100
Change-Id: I3895a5200bc97a294a8b5774c24972f1f58b40bf
(cherry picked from commit 7996a2e79e)

os_net_config/cli.py

@@ -124,10 +124,14 @@ def parse_opts(argv):
 
 def check_configure_sriov(obj):
     configure_sriov = False
+    if isinstance(obj, objects.SriovPF):
+        configure_sriov = True
+    elif hasattr(obj, 'members') and obj.members is not None:
         for member in obj.members:
             if isinstance(member, objects.SriovPF):
                 configure_sriov = True
-        elif hasattr(member, "members") and member.members is not None:
+                break
+            else:
                 configure_sriov = check_configure_sriov(member)
     return configure_sriov
 
@@ -282,14 +286,11 @@ def main(argv=sys.argv, main_logger=None):
             obj = objects.object_from_json(iface_json)
         except utils.SriovVfNotFoundException:
             continue
-        if isinstance(obj, objects.SriovPF):
-            configure_sriov = True
-            provider.add_object(obj)
-        elif hasattr(obj, 'members') and obj.members is not None:
         if check_configure_sriov(obj):
             configure_sriov = True
             provider.add_object(obj)
-
+            # Look for the presence of SriovPF as members of LinuxBond and that
+            # LinuxBond is member of OvsBridge
             sriovpf_member_of_bond_ovs_port_list.extend(
                 get_sriovpf_member_of_bond_ovs_port(obj))
 
@@ -323,7 +324,8 @@ def main(argv=sys.argv, main_logger=None):
                 restart_openvswitch=restart_ovs)
 
     for iface_json in iface_array:
-        # All objects other than the sriov_pf will be added here.
+        # All sriov_pfs at top level or at any member level will be
+        # ignored and all other objects are parsed will be added here.
         # The VFs are expected to be available now and an exception
         # SriovVfNotFoundException shall be raised if not available.
         try:
@@ -331,7 +333,7 @@ def main(argv=sys.argv, main_logger=None):
         except utils.SriovVfNotFoundException:
             if not opts.noop:
                 raise
-        if not isinstance(obj, objects.SriovPF):
+        if not check_configure_sriov(obj):
             provider.add_object(obj)
 
     if configure_sriov and not opts.noop: