L2 over MPLS

[support for VPWS/VPLS]
- switch to using dpo_proto_t rather than fib_protocol_t in fib_paths so that we can describe L2 paths
- VLIB nodes to handle pop/push of MPLS labels to L2

Change-Id: Id050d06a11fd2c9c1c81ce5a0654e6c5ae6afa6e
Signed-off-by: Neale Ranns <nranns@cisco.com>

3 files changed, 14 insertions, 16 deletions

diff --git a/src/vnet/mfib/ip6_mfib.c b/src/vnet/mfib/ip6_mfib.c
index 5c6f8126e3a..5e48e9193b5 100644
--- a/src/vnet/mfib/ip6_mfib.c
+++ b/src/vnet/mfib/ip6_mfib.c
@@ -158,7 +158,7 @@ ip6_create_mfib_with_table_id (u32 table_id)
         .fp_proto = FIB_PROTOCOL_IP6,
     };
     const fib_route_path_t path_for_us = {
-        .frp_proto = FIB_PROTOCOL_IP6,
+        .frp_proto = DPO_PROTO_IP6,
         .frp_addr = zero_addr,
         .frp_sw_if_index = 0xffffffff,
         .frp_fib_index = ~0,
@@ -222,7 +222,7 @@ ip6_mfib_table_destroy (ip6_mfib_t *mfib)
         .fp_proto = FIB_PROTOCOL_IP6,
     };
     const fib_route_path_t path_for_us = {
-        .frp_proto = FIB_PROTOCOL_IP6,
+        .frp_proto = DPO_PROTO_IP6,
         .frp_addr = zero_addr,
         .frp_sw_if_index = 0xffffffff,
         .frp_fib_index = ~0,
@@ -259,7 +259,7 @@ void
 ip6_mfib_interface_enable_disable (u32 sw_if_index, int is_enable)
 {
     const fib_route_path_t path = {
-        .frp_proto = FIB_PROTOCOL_IP6,
+        .frp_proto = DPO_PROTO_IP6,
         .frp_addr = zero_addr,
         .frp_sw_if_index = sw_if_index,
         .frp_fib_index = ~0,
diff --git a/src/vnet/mfib/mfib_entry.c b/src/vnet/mfib/mfib_entry.c
index cf25b67af6a..b37f88254bc 100644
--- a/src/vnet/mfib/mfib_entry.c
+++ b/src/vnet/mfib/mfib_entry.c
@@ -764,18 +764,16 @@ mfib_entry_update (fib_node_index_t mfib_entry_index,
          * entry
          */
         fib_node_index_t old_pl_index;
-        fib_protocol_t fp;
+        dpo_proto_t dp;
         dpo_id_t dpo = DPO_INVALID;
 
-        fp = mfib_entry_get_proto(mfib_entry);
+        dp = fib_proto_to_dpo(mfib_entry_get_proto(mfib_entry));
         old_pl_index = msrc->mfes_pl;
 
-        dpo_set(&dpo, DPO_REPLICATE,
-                fib_proto_to_dpo(fp),
-                repi);
+        dpo_set(&dpo, DPO_REPLICATE, dp, repi);
 
         msrc->mfes_pl =
-            fib_path_list_create_special(fp,
+            fib_path_list_create_special(dp,
                                          FIB_PATH_LIST_FLAG_EXCLUSIVE,
                                          &dpo);
 
diff --git a/src/vnet/mfib/mfib_test.c b/src/vnet/mfib/mfib_test.c
index 7c92ae99b1d..57787eca641 100644
--- a/src/vnet/mfib/mfib_test.c
+++ b/src/vnet/mfib/mfib_test.c
@@ -387,7 +387,7 @@ mfib_test_i (fib_protocol_t PROTO,
 
 
     fib_route_path_t path_via_if0 = {
-        .frp_proto = PROTO,
+        .frp_proto = fib_proto_to_dpo(PROTO),
         .frp_addr = zero_addr,
         .frp_sw_if_index = tm->hw[0]->sw_if_index,
         .frp_fib_index = ~0,
@@ -411,7 +411,7 @@ mfib_test_i (fib_protocol_t PROTO,
                                      MFIB_ITF_FLAG_ACCEPT));
 
     fib_route_path_t path_via_if1 = {
-        .frp_proto = PROTO,
+        .frp_proto = fib_proto_to_dpo(PROTO),
         .frp_addr = zero_addr,
         .frp_sw_if_index = tm->hw[1]->sw_if_index,
         .frp_fib_index = ~0,
@@ -419,7 +419,7 @@ mfib_test_i (fib_protocol_t PROTO,
         .frp_flags = 0,
     };
     fib_route_path_t path_via_if2 = {
-        .frp_proto = PROTO,
+        .frp_proto = fib_proto_to_dpo(PROTO),
         .frp_addr = zero_addr,
         .frp_sw_if_index = tm->hw[2]->sw_if_index,
         .frp_fib_index = ~0,
@@ -427,7 +427,7 @@ mfib_test_i (fib_protocol_t PROTO,
         .frp_flags = 0,
     };
     fib_route_path_t path_via_if3 = {
-        .frp_proto = PROTO,
+        .frp_proto = fib_proto_to_dpo(PROTO),
         .frp_addr = zero_addr,
         .frp_sw_if_index = tm->hw[3]->sw_if_index,
         .frp_fib_index = ~0,
@@ -435,7 +435,7 @@ mfib_test_i (fib_protocol_t PROTO,
         .frp_flags = 0,
     };
     fib_route_path_t path_for_us = {
-        .frp_proto = PROTO,
+        .frp_proto = fib_proto_to_dpo(PROTO),
         .frp_addr = zero_addr,
         .frp_sw_if_index = 0xffffffff,
         .frp_fib_index = ~0,
@@ -1121,7 +1121,7 @@ mfib_test_i (fib_protocol_t PROTO,
                                            &pfx_3500,
                                            FIB_SOURCE_API,
                                            FIB_ENTRY_FLAG_MULTICAST,
-                                           FIB_PROTOCOL_IP4,
+                                           DPO_PROTO_IP4,
                                            &nh_10_10_10_1,
                                            tm->hw[0]->sw_if_index,
                                            ~0, // invalid fib index
@@ -1138,7 +1138,7 @@ mfib_test_i (fib_protocol_t PROTO,
      * An (S,G) that resolves via the mLDP head-end
      */
     fib_route_path_t path_via_mldp = {
-        .frp_proto = FIB_PROTOCOL_MPLS,
+        .frp_proto = DPO_PROTO_MPLS,
         .frp_local_label = pfx_3500.fp_label,
         .frp_eos = MPLS_EOS,
         .frp_sw_if_index = 0xffffffff,