fib: default flow hash config for each DPO protocol type

Type: fix
Fixes: 59fa121f

Change-Id: I9eb4fe1612734e54932228527c37bf33b705dbdb
Signed-off-by: Neale Ranns <nranns@cisco.com>

MAINTAINERS

@@ -172,6 +172,11 @@ I:	mpls
 M:	Neale Ranns <nranns@cisco.com>
 F:	src/vnet/mpls/
 
+VNET BIER
+I:	bier
+M:	Neale Ranns <nranns@cisco.com>
+F:	src/vnet/bier/
+
 VNET Session Layer
 I:	session
 M:	Florin Coras <fcoras@cisco.com>

src/vnet/dpo/load_balance.c

@@ -22,6 +22,7 @@
 #include <vnet/adj/adj_internal.h>
 #include <vnet/fib/fib_urpf_list.h>
 #include <vnet/bier/bier_fwd.h>
+#include <vnet/fib/mpls_fib.h>
 
 /*
  * distribution error tolerance for load-balancing
@@ -188,6 +189,27 @@ format_load_balance_dpo (u8 * s, va_list * args)
     return (load_balance_format(lbi, LOAD_BALANCE_FORMAT_DETAIL, indent, s));
 }
 
+flow_hash_config_t
+load_balance_get_default_flow_hash (dpo_proto_t lb_proto)
+{
+    switch (lb_proto)
+    {
+    case DPO_PROTO_IP4:
+    case DPO_PROTO_IP6:
+        return (IP_FLOW_HASH_DEFAULT);
+
+    case DPO_PROTO_MPLS:
+        return (MPLS_FLOW_HASH_DEFAULT);
+
+    case DPO_PROTO_ETHERNET:
+    case DPO_PROTO_BIER:
+    case DPO_PROTO_NSH:
+        break;
+    }
+
+    return (0);
+}
+
 static load_balance_t *
 load_balance_create_i (u32 num_buckets,
                        dpo_proto_t lb_proto,

src/vnet/dpo/load_balance.h

@@ -188,6 +188,7 @@ typedef enum load_balance_format_flags_t_ {
 extern index_t load_balance_create(u32 num_buckets,
 				   dpo_proto_t lb_proto,
 				   flow_hash_config_t fhc);
+extern flow_hash_config_t load_balance_get_default_flow_hash(dpo_proto_t lb_proto);
 extern void load_balance_multipath_update(
     const dpo_id_t *dpo,
     const load_balance_path_t * raw_next_hops,

src/vnet/fib/fib_path_list.c

@@ -394,8 +394,7 @@ fib_path_list_mk_lb (fib_path_list_t *path_list,
             dproto,
             load_balance_create(vec_len(nhs),
                                 dproto,
-                                fib_table_get_default_flow_hash_config(
-                                    dpo_proto_to_fib(dproto))));
+                                load_balance_get_default_flow_hash(dproto)));
     load_balance_multipath_update(dpo, nhs,
                                   fib_path_list_fwd_flags_2_load_balance(flags));