gbp: migrate old MULTIARCH macros to VLIB_NODE_FN

Change-Id: I3b10caa447b796172f787df8fcbb92f2b4dd2803
Signed-off-by: Filip Tehlar <ftehlar@cisco.com>

1 files changed, 219 insertions, 0 deletions

diff --git a/src/plugins/gbp/gbp_vxlan_node.c b/src/plugins/gbp/gbp_vxlan_node.c
new file mode 100644
index 00000000000..c49f74af879
--- /dev/null
+++ b/src/plugins/gbp/gbp_vxlan_node.c
@@ -0,0 +1,219 @@
+/*
+ * Copyright (c) 2019 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <plugins/gbp/gbp_vxlan.h>
+#include <plugins/gbp/gbp_itf.h>
+#include <plugins/gbp/gbp_learn.h>
+#include <plugins/gbp/gbp_bridge_domain.h>
+#include <plugins/gbp/gbp_route_domain.h>
+#include <plugins/gbp/gbp_sclass.h>
+
+#include <vnet/vxlan-gbp/vxlan_gbp.h>
+#include <vlibmemory/api.h>
+#include <vnet/fib/fib_table.h>
+
+extern uword *gv_db;
+
+typedef struct gbp_vxlan_trace_t_
+{
+  u8 dropped;
+  u32 vni;
+  u32 sw_if_index;
+  u16 sclass;
+  u8 flags;
+} gbp_vxlan_trace_t;
+
+#define foreach_gbp_vxlan_input_next         \
+  _(DROP, "error-drop")                      \
+  _(L2_INPUT, "l2-input")                    \
+  _(IP4_INPUT, "ip4-input")                  \
+  _(IP6_INPUT, "ip6-input")
+
+typedef enum
+{
+#define _(s,n) GBP_VXLAN_INPUT_NEXT_##s,
+  foreach_gbp_vxlan_input_next
+#undef _
+    GBP_VXLAN_INPUT_N_NEXT,
+} gbp_vxlan_input_next_t;
+
+
+#define foreach_gbp_vxlan_error              \
+  _(DECAPPED, "decapped")                    \
+  _(LEARNED, "learned")
+
+typedef enum
+{
+#define _(s,n) GBP_VXLAN_ERROR_##s,
+  foreach_gbp_vxlan_error
+#undef _
+    GBP_VXLAN_N_ERROR,
+} gbp_vxlan_input_error_t;
+
+static char *gbp_vxlan_error_strings[] = {
+#define _(n,s) s,
+  foreach_gbp_vxlan_error
+#undef _
+};
+
+static uword
+gbp_vxlan_decap (vlib_main_t * vm,
+		 vlib_node_runtime_t * node,
+		 vlib_frame_t * from_frame, u8 is_ip4)
+{
+  u32 n_left_to_next, n_left_from, next_index, *to_next, *from;
+
+  next_index = 0;
+  from = vlib_frame_vector_args (from_frame);
+  n_left_from = from_frame->n_vectors;
+
+  while (n_left_from > 0)
+    {
+
+      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+      while (n_left_from > 0 && n_left_to_next > 0)
+	{
+	  vxlan_gbp_header_t *vxlan_gbp0;
+	  gbp_vxlan_input_next_t next0;
+	  gbp_vxlan_tunnel_t *gt0;
+	  vlib_buffer_t *b0;
+	  u32 bi0, vni0;
+	  uword *p;
+
+	  bi0 = to_next[0] = from[0];
+	  from += 1;
+	  to_next += 1;
+	  n_left_from -= 1;
+	  n_left_to_next -= 1;
+	  next0 = GBP_VXLAN_INPUT_NEXT_DROP;
+
+	  b0 = vlib_get_buffer (vm, bi0);
+	  vxlan_gbp0 =
+	    vlib_buffer_get_current (b0) - sizeof (vxlan_gbp_header_t);
+
+	  vni0 = vxlan_gbp_get_vni (vxlan_gbp0);
+	  p = hash_get (gv_db, vni0);
+
+	  if (PREDICT_FALSE (NULL == p))
+	    {
+	      gt0 = NULL;
+	      next0 = GBP_VXLAN_INPUT_NEXT_DROP;
+	    }
+	  else
+	    {
+	      gt0 = gbp_vxlan_tunnel_get (p[0]);
+
+	      vnet_buffer (b0)->sw_if_index[VLIB_RX] = gt0->gt_sw_if_index;
+
+	      if (GBP_VXLAN_TUN_L2 == gt0->gt_layer)
+		/*
+		 * An L2 layer tunnel goes into the BD
+		 */
+		next0 = GBP_VXLAN_INPUT_NEXT_L2_INPUT;
+	      else
+		{
+		  /*
+		   * An L3 layer tunnel needs to strip the L2 header
+		   * an inject into the RD
+		   */
+		  ethernet_header_t *e0;
+		  u16 type0;
+
+		  e0 = vlib_buffer_get_current (b0);
+		  type0 = clib_net_to_host_u16 (e0->type);
+		  switch (type0)
+		    {
+		    case ETHERNET_TYPE_IP4:
+		      next0 = GBP_VXLAN_INPUT_NEXT_IP4_INPUT;
+		      break;
+		    case ETHERNET_TYPE_IP6:
+		      next0 = GBP_VXLAN_INPUT_NEXT_IP6_INPUT;
+		      break;
+		    default:
+		      goto trace;
+		    }
+		  vlib_buffer_advance (b0, sizeof (*e0));
+		}
+	    }
+
+	trace:
+	  if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+	    {
+	      gbp_vxlan_trace_t *tr;
+
+	      tr = vlib_add_trace (vm, node, b0, sizeof (*tr));
+	      tr->dropped = (next0 == GBP_VXLAN_INPUT_NEXT_DROP);
+	      tr->vni = vni0;
+	      tr->sw_if_index = (gt0 ? gt0->gt_sw_if_index : ~0);
+	      tr->flags = vxlan_gbp_get_gpflags (vxlan_gbp0);
+	      tr->sclass = vxlan_gbp_get_sclass (vxlan_gbp0);
+	    }
+
+	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+					   to_next, n_left_to_next,
+					   bi0, next0);
+	}
+
+      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+    }
+
+  return from_frame->n_vectors;
+}
+
+VLIB_NODE_FN (gbp_vxlan4_input_node) (vlib_main_t * vm,
+				      vlib_node_runtime_t * node,
+				      vlib_frame_t * from_frame)
+{
+  return gbp_vxlan_decap (vm, node, from_frame, 1);
+}
+
+static u8 *
+format_gbp_vxlan_rx_trace (u8 * s, va_list * args)
+{
+  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+  gbp_vxlan_trace_t *t = va_arg (*args, gbp_vxlan_trace_t *);
+
+  s = format (s, "vni:%d dropped:%d rx:%d sclass:%d flags:%U",
+	      t->vni, t->dropped, t->sw_if_index,
+	      t->sclass, format_vxlan_gbp_header_gpflags, t->flags);
+
+  return (s);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (gbp_vxlan4_input_node) =
+{
+  .name = "gbp-vxlan4",
+  .vector_size = sizeof (u32),
+  .n_errors = GBP_VXLAN_N_ERROR,
+  .error_strings = gbp_vxlan_error_strings,
+  .n_next_nodes = GBP_VXLAN_INPUT_N_NEXT,
+  .format_trace = format_gbp_vxlan_rx_trace,
+  .next_nodes = {
+#define _(s,n) [GBP_VXLAN_INPUT_NEXT_##s] = n,
+    foreach_gbp_vxlan_input_next
+#undef _
+  },
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */