gre: migrate old MULTIARCH macros to VLIB_NODE_FN

Change-Id: I0f6b9f306f2323216ba64b694e8fdfa116e6cc9c
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>
diff --git a/src/vnet/CMakeLists.txt b/src/vnet/CMakeLists.txt
index 6af466f..01918ca 100644
--- a/src/vnet/CMakeLists.txt
+++ b/src/vnet/CMakeLists.txt
@@ -613,6 +613,11 @@
   gre/gre_api.c
 )
 
+list(APPEND VNET_MULTIARCH_SOURCES
+  gre/node.c
+  gre/gre.c
+)
+
 list(APPEND VNET_HEADERS
   gre/gre.h
   gre/packet.h
diff --git a/src/vnet/gre/gre.c b/src/vnet/gre/gre.c
index e30319f..364733b 100644
--- a/src/vnet/gre/gre.c
+++ b/src/vnet/gre/gre.c
@@ -19,6 +19,7 @@
 #include <vnet/gre/gre.h>
 #include <vnet/adj/adj_midchain.h>
 
+#ifndef CLIB_MARCH_VARIANT
 gre_main_t gre_main;
 
 typedef struct
@@ -38,6 +39,7 @@
     u64 as_u64[3];
   };
 } ip6_and_gre_union_t;
+#endif /* CLIB_MARCH_VARIANT */
 
 
 /* Packet trace structure */
@@ -54,7 +56,7 @@
   ip46_address_t dst;
 } gre_tx_trace_t;
 
-u8 *
+static u8 *
 format_gre_tx_trace (u8 * s, va_list * args)
 {
   CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
@@ -68,6 +70,7 @@
   return s;
 }
 
+#ifndef CLIB_MARCH_VARIANT
 u8 *
 format_gre_protocol (u8 * s, va_list * args)
 {
@@ -319,6 +322,7 @@
 
   gre_tunnel_stack (ai);
 }
+#endif /* CLIB_MARCH_VARIANT */
 
 
 typedef enum
@@ -331,9 +335,9 @@
  * @brief TX function. Only called for L2 payload including TEB or ERSPAN.
  *        L3 traffic uses the adj-midchains.
  */
-static uword
-gre_interface_tx (vlib_main_t * vm,
-		  vlib_node_runtime_t * node, vlib_frame_t * frame)
+VLIB_NODE_FN (gre_encap_node) (vlib_main_t * vm,
+			       vlib_node_runtime_t * node,
+			       vlib_frame_t * frame)
 {
   gre_main_t *gm = &gre_main;
   vnet_main_t *vnm = gm->vnet_main;
@@ -513,7 +517,6 @@
 /* *INDENT-OFF* */
 VLIB_REGISTER_NODE (gre_encap_node) =
 {
-  .function = gre_interface_tx,
   .name = "gre-encap",
   .vector_size = sizeof (u32),
   .format_trace = format_gre_tx_trace,
@@ -525,8 +528,6 @@
     [GRE_ENCAP_NEXT_L2_MIDCHAIN] = "adj-l2-midchain",
   },
 };
-
-VLIB_NODE_FUNCTION_MULTIARCH (gre_encap_node, gre_interface_tx)
 /* *INDENT-ON* */
 
 static u8 *
@@ -565,6 +566,7 @@
 #endif
 };
 
+#ifndef CLIB_MARCH_VARIANT
 VNET_HW_INTERFACE_CLASS (gre_hw_interface_class) = {
   .name = "GRE",
   .format_header = format_gre_header_with_length,
@@ -635,6 +637,8 @@
 
 VLIB_INIT_FUNCTION (gre_init);
 
+#endif /* CLIB_MARCH_VARIANT */
+
 /*
  * fd.io coding-style-patch-verification: ON
  *
diff --git a/src/vnet/gre/node.c b/src/vnet/gre/node.c
index 89109bb..ad3c8c6 100644
--- a/src/vnet/gre/node.c
+++ b/src/vnet/gre/node.c
@@ -46,7 +46,7 @@
   u8 is_ipv6;
 } gre_rx_trace_t;
 
-u8 *
+static u8 *
 format_gre_rx_trace (u8 * s, va_list * args)
 {
   CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
@@ -551,16 +551,16 @@
   return from_frame->n_vectors;
 }
 
-static uword
-gre4_input (vlib_main_t * vm,
-	    vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (gre4_input_node) (vlib_main_t * vm,
+				vlib_node_runtime_t * node,
+				vlib_frame_t * from_frame)
 {
   return gre_input (vm, node, from_frame, /* is_ip6 */ 0);
 }
 
-static uword
-gre6_input (vlib_main_t * vm,
-	    vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+VLIB_NODE_FN (gre6_input_node) (vlib_main_t * vm,
+				vlib_node_runtime_t * node,
+				vlib_frame_t * from_frame)
 {
   return gre_input (vm, node, from_frame, /* is_ip6 */ 1);
 }
@@ -573,7 +573,6 @@
 
 /* *INDENT-OFF* */
 VLIB_REGISTER_NODE (gre4_input_node) = {
-  .function = gre4_input,
   .name = "gre4-input",
   /* Takes a vector of packets. */
   .vector_size = sizeof (u32),
@@ -594,7 +593,6 @@
 };
 
 VLIB_REGISTER_NODE (gre6_input_node) = {
-  .function = gre6_input,
   .name = "gre6-input",
   /* Takes a vector of packets. */
   .vector_size = sizeof (u32),
@@ -615,11 +613,9 @@
   .format_trace = format_gre_rx_trace,
   .unformat_buffer = unformat_gre_header,
 };
-
-VLIB_NODE_FUNCTION_MULTIARCH (gre4_input_node, gre4_input)
-VLIB_NODE_FUNCTION_MULTIARCH (gre6_input_node, gre6_input)
 /* *INDENT-ON* */
 
+#ifndef CLIB_MARCH_VARIANT
 void
 gre_register_input_protocol (vlib_main_t * vm,
 			     gre_protocol_t protocol, u32 node_index,
@@ -711,6 +707,7 @@
 
 VLIB_INIT_FUNCTION (gre_input_init);
 
+#endif /* CLIB_MARCH_VARIANT */
 /*
  * fd.io coding-style-patch-verification: ON
  *