Initial GENEVE TUNNEL implementation and tests.
[vpp.git] / src / vnet / geneve / encap.c
diff --git a/src/vnet/geneve/encap.c b/src/vnet/geneve/encap.c
new file mode 100644 (file)
index 0000000..59d5c96
--- /dev/null
@@ -0,0 +1,594 @@
+/*
+ * Copyright (c) 2017 SUSE LLC.
+ * 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 <vppinfra/error.h>
+#include <vppinfra/hash.h>
+#include <vnet/vnet.h>
+#include <vnet/ip/ip.h>
+#include <vnet/ethernet/ethernet.h>
+#include <vnet/geneve/geneve.h>
+
+/* Statistics (not all errors) */
+#define foreach_geneve_encap_error    \
+_(ENCAPSULATED, "good packets encapsulated")
+
+static char *geneve_encap_error_strings[] = {
+#define _(sym,string) string,
+  foreach_geneve_encap_error
+#undef _
+};
+
+typedef enum
+{
+#define _(sym,str) GENEVE_ENCAP_ERROR_##sym,
+  foreach_geneve_encap_error
+#undef _
+    GENEVE_ENCAP_N_ERROR,
+} geneve_encap_error_t;
+
+typedef enum
+{
+  GENEVE_ENCAP_NEXT_DROP,
+  GENEVE_ENCAP_N_NEXT,
+} geneve_encap_next_t;
+
+typedef struct
+{
+  u32 tunnel_index;
+  u32 vni;
+} geneve_encap_trace_t;
+
+u8 *
+format_geneve_encap_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 *);
+  geneve_encap_trace_t *t = va_arg (*args, geneve_encap_trace_t *);
+
+  s = format (s, "GENEVE encap to geneve_tunnel%d vni %d",
+             t->tunnel_index, t->vni);
+  return s;
+}
+
+
+#define foreach_fixed_header4_offset            \
+    _(0) _(1) _(2) _(3)
+
+#define foreach_fixed_header6_offset            \
+    _(0) _(1) _(2) _(3) _(4) _(5) _(6)
+
+always_inline uword
+geneve_encap_inline (vlib_main_t * vm,
+                    vlib_node_runtime_t * node,
+                    vlib_frame_t * from_frame, u32 is_ip4)
+{
+  u32 n_left_from, next_index, *from, *to_next;
+  geneve_main_t *vxm = &geneve_main;
+  vnet_main_t *vnm = vxm->vnet_main;
+  vnet_interface_main_t *im = &vnm->interface_main;
+  u32 pkts_encapsulated = 0;
+  u16 old_l0 = 0, old_l1 = 0;
+  u32 thread_index = vlib_get_thread_index ();
+  u32 stats_sw_if_index, stats_n_packets, stats_n_bytes;
+  u32 sw_if_index0 = 0, sw_if_index1 = 0;
+  u32 next0 = 0, next1 = 0;
+  vnet_hw_interface_t *hi0, *hi1;
+  geneve_tunnel_t *t0 = NULL, *t1 = NULL;
+
+  from = vlib_frame_vector_args (from_frame);
+  n_left_from = from_frame->n_vectors;
+
+  next_index = node->cached_next_index;
+  stats_sw_if_index = node->runtime_data[0];
+  stats_n_packets = stats_n_bytes = 0;
+
+  while (n_left_from > 0)
+    {
+      u32 n_left_to_next;
+
+      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+      while (n_left_from >= 4 && n_left_to_next >= 2)
+       {
+         u32 bi0, bi1;
+         vlib_buffer_t *b0, *b1;
+         u32 flow_hash0, flow_hash1;
+         u32 len0, len1;
+         ip4_header_t *ip4_0, *ip4_1;
+         ip6_header_t *ip6_0, *ip6_1;
+         udp_header_t *udp0, *udp1;
+         u64 *copy_src0, *copy_dst0;
+         u64 *copy_src1, *copy_dst1;
+         u32 *copy_src_last0, *copy_dst_last0;
+         u32 *copy_src_last1, *copy_dst_last1;
+         u16 new_l0, new_l1;
+         ip_csum_t sum0, sum1;
+
+         /* Prefetch next iteration. */
+         {
+           vlib_buffer_t *p2, *p3;
+
+           p2 = vlib_get_buffer (vm, from[2]);
+           p3 = vlib_get_buffer (vm, from[3]);
+
+           vlib_prefetch_buffer_header (p2, LOAD);
+           vlib_prefetch_buffer_header (p3, LOAD);
+
+           CLIB_PREFETCH (p2->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+           CLIB_PREFETCH (p3->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
+         }
+
+         bi0 = from[0];
+         bi1 = from[1];
+         to_next[0] = bi0;
+         to_next[1] = bi1;
+         from += 2;
+         to_next += 2;
+         n_left_to_next -= 2;
+         n_left_from -= 2;
+
+         b0 = vlib_get_buffer (vm, bi0);
+         b1 = vlib_get_buffer (vm, bi1);
+
+         flow_hash0 = vnet_l2_compute_flow_hash (b0);
+         flow_hash1 = vnet_l2_compute_flow_hash (b1);
+
+         /* Get next node index and adj index from tunnel next_dpo */
+         if (sw_if_index0 != vnet_buffer (b0)->sw_if_index[VLIB_TX])
+           {
+             sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+             hi0 = vnet_get_sup_hw_interface (vnm, sw_if_index0);
+             t0 = &vxm->tunnels[hi0->dev_instance];
+             /* Note: change to always set next0 if it may be set to drop */
+             next0 = t0->next_dpo.dpoi_next_node;
+           }
+         vnet_buffer (b0)->ip.adj_index[VLIB_TX] = t0->next_dpo.dpoi_index;
+
+         /* Get next node index and adj index from tunnel next_dpo */
+         if (sw_if_index1 != vnet_buffer (b1)->sw_if_index[VLIB_TX])
+           {
+             sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_TX];
+             hi1 = vnet_get_sup_hw_interface (vnm, sw_if_index1);
+             t1 = &vxm->tunnels[hi1->dev_instance];
+             /* Note: change to always set next1 if it may be set to drop */
+             next1 = t1->next_dpo.dpoi_next_node;
+           }
+         vnet_buffer (b1)->ip.adj_index[VLIB_TX] = t1->next_dpo.dpoi_index;
+
+         /* Apply the rewrite string. $$$$ vnet_rewrite? */
+         vlib_buffer_advance (b0, -(word) _vec_len (t0->rewrite));
+         vlib_buffer_advance (b1, -(word) _vec_len (t1->rewrite));
+
+         if (is_ip4)
+           {
+             u8 ip4_geneve_base_header_len =
+               sizeof (ip4_header_t) + sizeof (udp_header_t) +
+               GENEVE_BASE_HEADER_LENGTH;
+             u8 ip4_geneve_header_total_len0 = ip4_geneve_base_header_len;
+             u8 ip4_geneve_header_total_len1 = ip4_geneve_base_header_len;
+#if SUPPORT_OPTIONS_HEADER==1
+             ip4_geneve_header_total_len0 += t0->options_len;
+             ip4_geneve_header_total_len1 += t1->options_len;
+#endif
+             ASSERT (vec_len (t0->rewrite) == ip4_geneve_header_total_len0);
+             ASSERT (vec_len (t1->rewrite) == ip4_geneve_header_total_len1);
+
+             ip4_0 = vlib_buffer_get_current (b0);
+             ip4_1 = vlib_buffer_get_current (b1);
+
+             /* Copy the fixed header */
+             copy_dst0 = (u64 *) ip4_0;
+             copy_src0 = (u64 *) t0->rewrite;
+             copy_dst1 = (u64 *) ip4_1;
+             copy_src1 = (u64 *) t1->rewrite;
+             /* Copy first 32 octets 8-bytes at a time */
+#define _(offs) copy_dst0[offs] = copy_src0[offs];
+             foreach_fixed_header4_offset;
+#undef _
+#define _(offs) copy_dst1[offs] = copy_src1[offs];
+             foreach_fixed_header4_offset;
+#undef _
+             /* Last 4 octets. Hopefully gcc will be our friend */
+             copy_dst_last0 = (u32 *) (&copy_dst0[4]);
+             copy_src_last0 = (u32 *) (&copy_src0[4]);
+             copy_dst_last0[0] = copy_src_last0[0];
+             copy_dst_last1 = (u32 *) (&copy_dst1[4]);
+             copy_src_last1 = (u32 *) (&copy_src1[4]);
+             copy_dst_last1[0] = copy_src_last1[0];
+
+             /* Fix the IP4 checksum and length */
+             sum0 = ip4_0->checksum;
+             new_l0 =          /* old_l0 always 0, see the rewrite setup */
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
+             sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
+                                    length /* changed member */ );
+             ip4_0->checksum = ip_csum_fold (sum0);
+             ip4_0->length = new_l0;
+             sum1 = ip4_1->checksum;
+             new_l1 =          /* old_l1 always 0, see the rewrite setup */
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1));
+             sum1 = ip_csum_update (sum1, old_l1, new_l1, ip4_header_t,
+                                    length /* changed member */ );
+             ip4_1->checksum = ip_csum_fold (sum1);
+             ip4_1->length = new_l1;
+
+             /* Fix UDP length and set source port */
+             udp0 = (udp_header_t *) (ip4_0 + 1);
+             new_l0 =
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
+                                     sizeof (*ip4_0));
+             udp0->length = new_l0;
+             udp0->src_port = flow_hash0;
+             udp1 = (udp_header_t *) (ip4_1 + 1);
+             new_l1 =
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1) -
+                                     sizeof (*ip4_1));
+             udp1->length = new_l1;
+             udp1->src_port = flow_hash1;
+           }
+         else                  /* ipv6 */
+           {
+             int bogus = 0;
+
+             u8 ip6_geneve_base_header_len =
+               sizeof (ip6_header_t) + sizeof (udp_header_t) +
+               GENEVE_BASE_HEADER_LENGTH;
+             u8 ip6_geneve_header_total_len0 = ip6_geneve_base_header_len;
+             u8 ip6_geneve_header_total_len1 = ip6_geneve_base_header_len;
+#if SUPPORT_OPTIONS_HEADER==1
+             ip6_geneve_header_total_len0 += t0->options_len;
+             ip6_geneve_header_total_len1 += t1->options_len;
+#endif
+             ASSERT (vec_len (t0->rewrite) == ip6_geneve_header_total_len0);
+             ASSERT (vec_len (t1->rewrite) == ip6_geneve_header_total_len1);
+
+             ip6_0 = vlib_buffer_get_current (b0);
+             ip6_1 = vlib_buffer_get_current (b1);
+
+             /* Copy the fixed header */
+             copy_dst0 = (u64 *) ip6_0;
+             copy_src0 = (u64 *) t0->rewrite;
+             copy_dst1 = (u64 *) ip6_1;
+             copy_src1 = (u64 *) t1->rewrite;
+             /* Copy first 56 (ip6) octets 8-bytes at a time */
+#define _(offs) copy_dst0[offs] = copy_src0[offs];
+             foreach_fixed_header6_offset;
+#undef _
+#define _(offs) copy_dst1[offs] = copy_src1[offs];
+             foreach_fixed_header6_offset;
+#undef _
+             /* Fix IP6 payload length */
+             new_l0 =
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
+                                     - sizeof (*ip6_0));
+             ip6_0->payload_length = new_l0;
+             new_l1 =
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b1)
+                                     - sizeof (*ip6_1));
+             ip6_1->payload_length = new_l1;
+
+             /* Fix UDP length  and set source port */
+             udp0 = (udp_header_t *) (ip6_0 + 1);
+             udp0->length = new_l0;
+             udp0->src_port = flow_hash0;
+             udp1 = (udp_header_t *) (ip6_1 + 1);
+             udp1->length = new_l1;
+             udp1->src_port = flow_hash1;
+
+             /* IPv6 UDP checksum is mandatory */
+             udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0,
+                                                                 ip6_0,
+                                                                 &bogus);
+             ASSERT (bogus == 0);
+             if (udp0->checksum == 0)
+               udp0->checksum = 0xffff;
+             udp1->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b1,
+                                                                 ip6_1,
+                                                                 &bogus);
+             ASSERT (bogus == 0);
+             if (udp1->checksum == 0)
+               udp1->checksum = 0xffff;
+           }
+
+         pkts_encapsulated += 2;
+         len0 = vlib_buffer_length_in_chain (vm, b0);
+         len1 = vlib_buffer_length_in_chain (vm, b1);
+         stats_n_packets += 2;
+         stats_n_bytes += len0 + len1;
+
+         /* Batch stats increment on the same geneve tunnel so counter is not
+            incremented per packet. Note stats are still incremented for deleted
+            and admin-down tunnel where packets are dropped. It is not worthwhile
+            to check for this rare case and affect normal path performance. */
+         if (PREDICT_FALSE ((sw_if_index0 != stats_sw_if_index) ||
+                            (sw_if_index1 != stats_sw_if_index)))
+           {
+             stats_n_packets -= 2;
+             stats_n_bytes -= len0 + len1;
+             if (sw_if_index0 == sw_if_index1)
+               {
+                 if (stats_n_packets)
+                   vlib_increment_combined_counter
+                     (im->combined_sw_if_counters +
+                      VNET_INTERFACE_COUNTER_TX, thread_index,
+                      stats_sw_if_index, stats_n_packets, stats_n_bytes);
+                 stats_sw_if_index = sw_if_index0;
+                 stats_n_packets = 2;
+                 stats_n_bytes = len0 + len1;
+               }
+             else
+               {
+                 vlib_increment_combined_counter
+                   (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX,
+                    thread_index, sw_if_index0, 1, len0);
+                 vlib_increment_combined_counter
+                   (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX,
+                    thread_index, sw_if_index1, 1, len1);
+               }
+           }
+
+         if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+           {
+             geneve_encap_trace_t *tr =
+               vlib_add_trace (vm, node, b0, sizeof (*tr));
+             tr->tunnel_index = t0 - vxm->tunnels;
+             tr->vni = t0->vni;
+           }
+
+         if (PREDICT_FALSE (b1->flags & VLIB_BUFFER_IS_TRACED))
+           {
+             geneve_encap_trace_t *tr =
+               vlib_add_trace (vm, node, b1, sizeof (*tr));
+             tr->tunnel_index = t1 - vxm->tunnels;
+             tr->vni = t1->vni;
+           }
+
+         vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+                                          to_next, n_left_to_next,
+                                          bi0, bi1, next0, next1);
+       }
+
+      while (n_left_from > 0 && n_left_to_next > 0)
+       {
+         u32 bi0;
+         vlib_buffer_t *b0;
+         u32 flow_hash0;
+         u32 len0;
+         ip4_header_t *ip4_0;
+         ip6_header_t *ip6_0;
+         udp_header_t *udp0;
+         u64 *copy_src0, *copy_dst0;
+         u32 *copy_src_last0, *copy_dst_last0;
+         u16 new_l0;
+         ip_csum_t sum0;
+
+         bi0 = from[0];
+         to_next[0] = bi0;
+         from += 1;
+         to_next += 1;
+         n_left_from -= 1;
+         n_left_to_next -= 1;
+
+         b0 = vlib_get_buffer (vm, bi0);
+
+         flow_hash0 = vnet_l2_compute_flow_hash (b0);
+
+         /* Get next node index and adj index from tunnel next_dpo */
+         if (sw_if_index0 != vnet_buffer (b0)->sw_if_index[VLIB_TX])
+           {
+             sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+             hi0 = vnet_get_sup_hw_interface (vnm, sw_if_index0);
+             t0 = &vxm->tunnels[hi0->dev_instance];
+             /* Note: change to always set next0 if it may be set to drop */
+             next0 = t0->next_dpo.dpoi_next_node;
+           }
+         vnet_buffer (b0)->ip.adj_index[VLIB_TX] = t0->next_dpo.dpoi_index;
+
+         /* Apply the rewrite string. $$$$ vnet_rewrite? */
+         vlib_buffer_advance (b0, -(word) _vec_len (t0->rewrite));
+
+         if (is_ip4)
+           {
+             u8 ip4_geneve_base_header_len =
+               sizeof (ip4_header_t) + sizeof (udp_header_t) +
+               GENEVE_BASE_HEADER_LENGTH;
+             u8 ip4_geneve_header_total_len0 = ip4_geneve_base_header_len;
+#if SUPPORT_OPTIONS_HEADER==1
+             ip4_geneve_header_total_len0 += t0->options_len;
+#endif
+             ASSERT (vec_len (t0->rewrite) == ip4_geneve_header_total_len0);
+
+             ip4_0 = vlib_buffer_get_current (b0);
+
+             /* Copy the fixed header */
+             copy_dst0 = (u64 *) ip4_0;
+             copy_src0 = (u64 *) t0->rewrite;
+             /* Copy first 32 octets 8-bytes at a time */
+#define _(offs) copy_dst0[offs] = copy_src0[offs];
+             foreach_fixed_header4_offset;
+#undef _
+             /* Last 4 octets. Hopefully gcc will be our friend */
+             copy_dst_last0 = (u32 *) (&copy_dst0[4]);
+             copy_src_last0 = (u32 *) (&copy_src0[4]);
+             copy_dst_last0[0] = copy_src_last0[0];
+
+             /* Fix the IP4 checksum and length */
+             sum0 = ip4_0->checksum;
+             new_l0 =          /* old_l0 always 0, see the rewrite setup */
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0));
+             sum0 = ip_csum_update (sum0, old_l0, new_l0, ip4_header_t,
+                                    length /* changed member */ );
+             ip4_0->checksum = ip_csum_fold (sum0);
+             ip4_0->length = new_l0;
+
+             /* Fix UDP length and set source port */
+             udp0 = (udp_header_t *) (ip4_0 + 1);
+             new_l0 =
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0) -
+                                     sizeof (*ip4_0));
+             udp0->length = new_l0;
+             udp0->src_port = flow_hash0;
+           }
+
+         else                  /* ip6 path */
+           {
+             int bogus = 0;
+
+             u8 ip6_geneve_base_header_len =
+               sizeof (ip6_header_t) + sizeof (udp_header_t) +
+               GENEVE_BASE_HEADER_LENGTH;
+             u8 ip6_geneve_header_total_len0 = ip6_geneve_base_header_len;
+#if SUPPORT_OPTIONS_HEADER==1
+             ip6_geneve_header_total_len0 += t0->options_len;
+#endif
+             ASSERT (vec_len (t0->rewrite) == ip6_geneve_header_total_len0);
+
+             ip6_0 = vlib_buffer_get_current (b0);
+             /* Copy the fixed header */
+             copy_dst0 = (u64 *) ip6_0;
+             copy_src0 = (u64 *) t0->rewrite;
+             /* Copy first 56 (ip6) octets 8-bytes at a time */
+#define _(offs) copy_dst0[offs] = copy_src0[offs];
+             foreach_fixed_header6_offset;
+#undef _
+             /* Fix IP6 payload length */
+             new_l0 =
+               clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b0)
+                                     - sizeof (*ip6_0));
+             ip6_0->payload_length = new_l0;
+
+             /* Fix UDP length  and set source port */
+             udp0 = (udp_header_t *) (ip6_0 + 1);
+             udp0->length = new_l0;
+             udp0->src_port = flow_hash0;
+
+             /* IPv6 UDP checksum is mandatory */
+             udp0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0,
+                                                                 ip6_0,
+                                                                 &bogus);
+             ASSERT (bogus == 0);
+             if (udp0->checksum == 0)
+               udp0->checksum = 0xffff;
+           }
+
+         pkts_encapsulated++;
+         len0 = vlib_buffer_length_in_chain (vm, b0);
+         stats_n_packets += 1;
+         stats_n_bytes += len0;
+
+         /* Batch stats increment on the same geneve tunnel so counter is not
+            incremented per packet. Note stats are still incremented for deleted
+            and admin-down tunnel where packets are dropped. It is not worthwhile
+            to check for this rare case and affect normal path performance. */
+         if (PREDICT_FALSE (sw_if_index0 != stats_sw_if_index))
+           {
+             stats_n_packets -= 1;
+             stats_n_bytes -= len0;
+             if (stats_n_packets)
+               vlib_increment_combined_counter
+                 (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX,
+                  thread_index, stats_sw_if_index,
+                  stats_n_packets, stats_n_bytes);
+             stats_n_packets = 1;
+             stats_n_bytes = len0;
+             stats_sw_if_index = sw_if_index0;
+           }
+
+         if (PREDICT_FALSE (b0->flags & VLIB_BUFFER_IS_TRACED))
+           {
+             geneve_encap_trace_t *tr =
+               vlib_add_trace (vm, node, b0, sizeof (*tr));
+             tr->tunnel_index = t0 - vxm->tunnels;
+             tr->vni = t0->vni;
+           }
+         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);
+    }
+
+  /* Do we still need this now that tunnel tx stats is kept? */
+  vlib_node_increment_counter (vm, node->node_index,
+                              GENEVE_ENCAP_ERROR_ENCAPSULATED,
+                              pkts_encapsulated);
+
+  /* Increment any remaining batch stats */
+  if (stats_n_packets)
+    {
+      vlib_increment_combined_counter
+       (im->combined_sw_if_counters + VNET_INTERFACE_COUNTER_TX,
+        thread_index, stats_sw_if_index, stats_n_packets, stats_n_bytes);
+      node->runtime_data[0] = stats_sw_if_index;
+    }
+
+  return from_frame->n_vectors;
+}
+
+static uword
+geneve4_encap (vlib_main_t * vm,
+              vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+{
+  return geneve_encap_inline (vm, node, from_frame, /* is_ip4 */ 1);
+}
+
+static uword
+geneve6_encap (vlib_main_t * vm,
+              vlib_node_runtime_t * node, vlib_frame_t * from_frame)
+{
+  return geneve_encap_inline (vm, node, from_frame, /* is_ip4 */ 0);
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (geneve4_encap_node) = {
+  .function = geneve4_encap,
+  .name = "geneve4-encap",
+  .vector_size = sizeof (u32),
+  .format_trace = format_geneve_encap_trace,
+  .type = VLIB_NODE_TYPE_INTERNAL,
+  .n_errors = ARRAY_LEN (geneve_encap_error_strings),
+  .error_strings = geneve_encap_error_strings,
+  .n_next_nodes = GENEVE_ENCAP_N_NEXT,
+  .next_nodes = {
+        [GENEVE_ENCAP_NEXT_DROP] = "error-drop",
+  },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (geneve4_encap_node, geneve4_encap)
+
+VLIB_REGISTER_NODE (geneve6_encap_node) = {
+  .function = geneve6_encap,
+  .name = "geneve6-encap",
+  .vector_size = sizeof (u32),
+  .format_trace = format_geneve_encap_trace,
+  .type = VLIB_NODE_TYPE_INTERNAL,
+  .n_errors = ARRAY_LEN (geneve_encap_error_strings),
+  .error_strings = geneve_encap_error_strings,
+  .n_next_nodes = GENEVE_ENCAP_N_NEXT,
+  .next_nodes = {
+        [GENEVE_ENCAP_NEXT_DROP] = "error-drop",
+  },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (geneve6_encap_node, geneve6_encap)
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */