VPP-30 sr_replicate requires DPDK

- added fix to disable functionality when no DPDK
- may extend to support non-DPDK case in future.

Change-Id: Ic8ad4eeb91c4866f3f102dd4a718898eb0419dee
Signed-off-by: Keith Burns (alagalah) <alagalah@gmail.com>

4 files changed, 27 insertions, 0 deletions

diff --git a/vnet/vnet/sr/sr.c b/vnet/vnet/sr/sr.c
index e17b474e9e7..46318a27bbe 100644
--- a/vnet/vnet/sr/sr.c
+++ b/vnet/vnet/sr/sr.c
@@ -201,11 +201,18 @@ u8 * format_ip6_sr_header_with_length (u8 * s, va_list * args)
   return s;
 }
 
+#if DPDK > 0 /* Cannot call replicate yet without DPDK */
 #define foreach_sr_rewrite_next                 \
 _(ERROR, "error-drop")                          \
 _(IP6_LOOKUP, "ip6-lookup")                     \
 _(SR_LOCAL, "sr-local")                         \
 _(SR_REPLICATE,"sr-replicate")
+#else
+#define foreach_sr_rewrite_next                 \
+_(ERROR, "error-drop")                          \
+_(IP6_LOOKUP, "ip6-lookup")                     \
+_(SR_LOCAL, "sr-local")                         
+#endif /* DPDK */
 
 typedef enum {
 #define _(s,n) SR_REWRITE_NEXT_##s,
@@ -519,6 +526,7 @@ sr_rewrite (vlib_main_t * vm,
           t0 = pool_elt_at_index (sm->tunnels, 
                                   adj0->rewrite_header.sw_if_index);
 
+#if DPDK > 0 /* Cannot call replication node yet without DPDK */
 	  /* add a replication node */
 	  if(PREDICT_FALSE(t0->policy_index != ~0))
 	    {
@@ -526,6 +534,7 @@ sr_rewrite (vlib_main_t * vm,
 	      next0=SR_REWRITE_NEXT_SR_REPLICATE;
 	      goto trace0;
 	    }
+#endif /* DPDK */
 
           ASSERT (VLIB_BUFFER_PRE_DATA_SIZE
                   >= ((word) vec_len (t0->rewrite)) + b0->current_data);
@@ -593,7 +602,9 @@ sr_rewrite (vlib_main_t * vm,
               }
             }
 
+#if DPDK > 0 /* Cannot run replicate without DPDK and only replicate uses this label */
 	trace0:
+#endif /* DPDK */
           if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED)) 
             {
               sr_rewrite_trace_t *tr = vlib_add_trace (vm, node, 
@@ -1584,7 +1595,11 @@ sr_add_del_multicast_map_command_fn (vlib_main_t * vm,
   a->multicast_address = &multicast_address;
   a->policy_name = policy_name;
 
+#if DPDK > 0 /*Cannot call replicate or configure multicast map yet without DPDK */
   rv = ip6_sr_add_del_multicastmap (a);
+#else
+  return clib_error_return (0, "cannot use multicast replicate spray case without DPDK installed");
+#endif /* DPDK */
 
   switch (rv)
     {
@@ -1946,9 +1961,11 @@ static clib_error_t * sr_init (vlib_main_t * vm)
   sm->ip6_lookup_sr_next_index = 
     vlib_node_add_next (vm, ip6_lookup_node->index, sr_rewrite_node.index);
 
+#if DPDK > 0 /* Cannot run replicate without DPDK */
   /* Add a disposition to sr_replicate for the sr multicast replicate node */
   sm->ip6_lookup_sr_replicate_index = 
     vlib_node_add_next (vm, ip6_lookup_node->index, sr_replicate_node.index);
+#endif /* DPDK */
 
   /* Add a disposition to ip6_rewrite for the sr dst address hack node */
   sm->ip6_rewrite_sr_next_index = 
diff --git a/vnet/vnet/sr/sr.h b/vnet/vnet/sr/sr.h
index 023ca243d7d..321f49a7321 100644
--- a/vnet/vnet/sr/sr.h
+++ b/vnet/vnet/sr/sr.h
@@ -187,7 +187,9 @@ format_function_t format_ip6_sr_header_with_length;
 
 vlib_node_registration_t ip6_sr_input_node;
 
+#if DPDK > 0
 vlib_node_registration_t sr_replicate_node;
+#endif /* DPDK */
 
 int ip6_sr_add_del_tunnel (ip6_sr_add_del_tunnel_args_t * a);
 int ip6_sr_add_del_policy (ip6_sr_add_del_policy_args_t * a);
diff --git a/vnet/vnet/sr/sr_replicate.c b/vnet/vnet/sr/sr_replicate.c
index e60b95624e1..7486d7c60a1 100644
--- a/vnet/vnet/sr/sr_replicate.c
+++ b/vnet/vnet/sr/sr_replicate.c
@@ -15,6 +15,7 @@
  * limitations under the License.
  */
 
+#if DPDK > 0 /* Cannot run replicate without DPDK */
 #include <vlib/vlib.h>
 #include <vnet/vnet.h>
 #include <vnet/pg/pg.h>
@@ -364,3 +365,5 @@ clib_error_t *sr_replicate_init (vlib_main_t *vm)
 }
 
 VLIB_INIT_FUNCTION(sr_replicate_init);
+
+#endif /* DPDK */
diff --git a/vpp/api/api.c b/vpp/api/api.c
index 41f57602550..52616cce821 100644
--- a/vpp/api/api.c
+++ b/vpp/api/api.c
@@ -3506,7 +3506,12 @@ static void vl_api_sr_multicast_map_add_del_t_handler
 	goto out;
       }
 
+#if DPDK > 0 /* Cannot call replicate without DPDK */
     rv = ip6_sr_add_del_multicastmap (a);
+#else
+    clib_warning ("multicast replication without DPDK not implemented");
+    rv = VNET_API_ERROR_UNIMPLEMENTED;
+#endif /* DPDK */
 
 out: