[decap]: Update test to support t1-64-lag topology (#266)

Author: Shuotian Cheng

ansible/roles/test/tasks/decap.yml

@@ -7,7 +7,7 @@
         (dscp_mode is not defined) 
 
 - fail: msg="Invalid testbed_type value '{{testbed_type}}'"
-  when: testbed_type not in [ 't1', 't0', 't1-lag']
+  when: testbed_type not in [ 't1', 't0', 't1-lag', 't1-64-lag']
 
 - fail: msg="Invalid testbed_type value '{{dscp_mode}}'"
   when: dscp_mode not in [ 'pipe','uniform']
@@ -16,15 +16,15 @@
 
 - name: Expand properties into props
   set_fact: props="{{configuration_properties['spine']}}"
-  when: testbed_type in ['t1', 't1-lag']
+  when: testbed_type in ['t1', 't1-lag', 't1-64-lag']
 
 - name: Expand properties into props
   set_fact: props="{{configuration_properties['common']}}"
   when: testbed_type in ['t0']
 
 - name: Expand properties into props
   set_fact: props_tor="{{configuration_properties['tor']}}"
-  when: testbed_type in ['t1', 't1-lag']
+  when: testbed_type in ['t1', 't1-lag', 't1-64-lag']
 
 # Gather minigraph facts
 - name: Gathering minigraph facts about the device
@@ -70,6 +70,7 @@
     ptf_test_dir: ptftests
     ptf_test_path: IP_decap_test.DecapPacketTest
     ptf_platform: remote
+    ptf_extra_options: --platform-dir ptftests
     ptf_test_params:
       - testbed_type='{{ testbed_type }}'
       - fib_info='/root/fib_info.txt'