nosdn-fdio scenario fixes

- Skip lookup for tap interfaces
- Update l3_hosts field in vpp ml2 section

Change-Id: I231054a433eb7e598a6e24f6eaea02d476e776de
Signed-off-by: Feng Pan <fpan@redhat.com>
(cherry picked from commit 4d88340cb582a0fda9b6ac9174a41c7b4c28d655)

1 files changed, 7 insertions, 3 deletions

diff --git a/lib/puppet/parser/functions/vpp_physnet_mapping.rb b/lib/puppet/parser/functions/vpp_physnet_mapping.rb
index 1c86a23..cd05f56 100644
--- a/lib/puppet/parser/functions/vpp_physnet_mapping.rb
+++ b/lib/puppet/parser/functions/vpp_physnet_mapping.rb
@@ -6,10 +6,14 @@ module Puppet::Parser::Functions
       unless mapping.length == 2
         raise Puppet::ParseError, "Invalid physnet mapping format: #{item}. Expecting 'physnet:interface_name'"
       end
-      if defined? call_function
-        vpp_int = call_function('hiera', [mapping[1]])
+      if mapping[1].start_with?("tap")
+        vpp_int = mapping[1]
       else
-        vpp_int = function_hiera([mapping[1]])
+        if defined? call_function
+          vpp_int = call_function('hiera', [mapping[1]])
+        else
+          vpp_int = function_hiera([mapping[1]])
+        end
       end
       if vpp_int.to_s.strip.empty?
         raise Puppet::ParseError, "VPP interface mapped to #{mapping[1]} is not found."