IP Flow Hash Config fixes

- the flow hash config is (and was) cached on the load-balance object so the fib_table_t struct is not used a switch time. Therefore changes to the table's flow hash config need to be propagated to all load-balances and hance all FIB entries in the table.
- enable API for setting the IPv6 table flow hash config
- use only the hash config in the fib_table_t object and not on the ipX_fib_t
- add tests.

Change-Id: Ib804c11162c6d4972c764957562c372f663e05d4
Signed-off-by: Neale Ranns <nranns@cisco.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/src/vnet/ip/ip_api.c b/src/vnet/ip/ip_api.c
index 9c9cb4a445a..2680d6010dc 100644
--- a/src/vnet/ip/ip_api.c
+++ b/src/vnet/ip/ip_api.c
@@ -1336,9 +1336,17 @@ static void
 set_ip6_flow_hash (vl_api_set_ip_flow_hash_t * mp)
 {
   vl_api_set_ip_flow_hash_reply_t *rmp;
-  int rv = VNET_API_ERROR_UNIMPLEMENTED;
+  int rv;
+  u32 table_id;
+  flow_hash_config_t flow_hash_config = 0;
+
+  table_id = ntohl (mp->vrf_id);
+
+#define _(a,b) if (mp->a) flow_hash_config |= b;
+  foreach_flow_hash_bit;
+#undef _
 
-  clib_warning ("unimplemented...");
+  rv = vnet_set_ip6_flow_hash (table_id, flow_hash_config);
 
   REPLY_MACRO (VL_API_SET_IP_FLOW_HASH_REPLY);
 }