ip: use IPv6 flowlabel in flow hash computation

extends ip6_compute_flow_hash() to include IPv6 flowlabel in flowhash computation

Type: improvement

Signed-off-by: Ahmed Abdelsalam <ahabdels@cisco.com>
Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
Change-Id: Id1aaa20c9dac729c22b714eea1cdd6e9e4d1f75e
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index bb70805..332c483 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -2771,24 +2771,6 @@
 };
 /* *INDENT-ON* */
 
-#ifndef CLIB_MARCH_VARIANT
-int
-vnet_set_ip4_flow_hash (u32 table_id, u32 flow_hash_config)
-{
-  u32 fib_index;
-
-  fib_index = fib_table_find (FIB_PROTOCOL_IP4, table_id);
-
-  if (~0 == fib_index)
-    return VNET_API_ERROR_NO_SUCH_FIB;
-
-  fib_table_set_flow_hash_config (fib_index, FIB_PROTOCOL_IP4,
-				  flow_hash_config);
-
-  return 0;
-}
-#endif
-
 static clib_error_t *
 set_ip_flow_hash_command_fn (vlib_main_t * vm,
 			     unformat_input_t * input,
@@ -2803,8 +2785,12 @@
     {
       if (unformat (input, "table %d", &table_id))
 	matched = 1;
-#define _(a,v) \
-    else if (unformat (input, #a)) { flow_hash_config |= v; matched=1;}
+#define _(a, b, v)                                                            \
+  else if (unformat (input, #a))                                              \
+  {                                                                           \
+    flow_hash_config |= v;                                                    \
+    matched = 1;                                                              \
+  }
       foreach_flow_hash_bit
 #undef _
 	else
@@ -2815,7 +2801,7 @@
     return clib_error_return (0, "unknown input `%U'",
 			      format_unformat_error, input);
 
-  rv = vnet_set_ip4_flow_hash (table_id, flow_hash_config);
+  rv = ip_flow_hash_set (AF_IP4, table_id, flow_hash_config);
   switch (rv)
     {
     case 0: