lisp-cp: start lisp retry service on demand

Change-Id: I07681d94301e19389dda0caacd5a93b21d9aff1f
Signed-off-by: Florin Coras <fcoras@cisco.com>

2 files changed, 18 insertions, 8 deletions

diff --git a/src/vnet/lisp-cp/control.c b/src/vnet/lisp-cp/control.c
index f8e9c1d5b44..c54ec577fb4 100644
--- a/src/vnet/lisp-cp/control.c
+++ b/src/vnet/lisp-cp/control.c
@@ -2297,6 +2297,9 @@ vnet_lisp_enable_disable (u8 is_enable)
 	}
     }
 
+  if (is_enable)
+    vnet_lisp_create_retry_process (lcm);
+
   /* update global flag */
   lcm->is_enabled = is_enable;
 
@@ -4903,14 +4906,17 @@ vnet_lisp_stats_enable_disable_state (void)
   return lcm->flags & LISP_FLAG_STATS_ENABLED;
 }
 
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (lisp_retry_service_node,static) = {
-    .function = send_map_resolver_service,
-    .type = VLIB_NODE_TYPE_PROCESS,
-    .name = "lisp-retry-service",
-    .process_log2_n_stack_bytes = 16,
-};
-/* *INDENT-ON* */
+void
+vnet_lisp_create_retry_process (lisp_cp_main_t * lcm)
+{
+  if (lcm->retry_service_index)
+    return;
+
+  lcm->retry_service_index = vlib_process_create (vlib_get_main (),
+						  "lisp-retry-service",
+						  send_map_resolver_service,
+						  16 /* stack_bytes */ );
+}
 
 u32
 vnet_lisp_set_transport_protocol (u8 protocol)
diff --git a/src/vnet/lisp-cp/control.h b/src/vnet/lisp-cp/control.h
index d8318b5530c..d3d320abb3e 100644
--- a/src/vnet/lisp-cp/control.h
+++ b/src/vnet/lisp-cp/control.h
@@ -281,6 +281,9 @@ typedef struct
   /** either UDP based or binary API. Default is UDP */
   lisp_transport_protocol_t transport_protocol;
 
+  /** Retry service node index */
+  u32 retry_service_index;
+
   /* commodity */
   ip4_main_t *im4;
   ip6_main_t *im6;
@@ -378,6 +381,7 @@ int vnet_lisp_add_del_map_server (ip_address_t * addr, u8 is_add);
 
 clib_error_t *vnet_lisp_enable_disable (u8 is_enabled);
 u8 vnet_lisp_enable_disable_status (void);
+void vnet_lisp_create_retry_process (lisp_cp_main_t * lcm);
 
 int vnet_lisp_pitr_set_locator_set (u8 * locator_set_name, u8 is_add);
 int vnet_lisp_use_petr (ip_address_t * ip, u8 is_add);