l2:bvi-dont aceess sup hw int for broadcasts

sup hw int is needed only for unicast validation

Change-Id: I5e5753c09d1c16fdb2435b4db5628a2379fe6f96
Signed-off-by: Eyal Bari <ebari@cisco.com>

1 files changed, 11 insertions, 20 deletions

diff --git a/src/vnet/l2/l2_bvi.h b/src/vnet/l2/l2_bvi.h
index 662ec402a87..cc86072fab7 100644
--- a/src/vnet/l2/l2_bvi.h
+++ b/src/vnet/l2/l2_bvi.h
@@ -40,31 +40,25 @@ l2_to_bvi (vlib_main_t * vlib_main,
 	   vlib_buffer_t * b0,
 	   u32 bvi_sw_if_index, next_by_ethertype_t * l3_next, u32 * next0)
 {
-  u8 l2_len;
-  u16 ethertype;
-  u8 *l3h;
-  ethernet_header_t *e0;
-  vnet_hw_interface_t *hi;
-
-  e0 = vlib_buffer_get_current (b0);
-  hi = vnet_get_sup_hw_interface (vnet_main, bvi_sw_if_index);
-
   /* Perform L3 my-mac filter */
-  if ((!ethernet_address_cast (e0->dst_address)) &&
-      (!eth_mac_equal ((u8 *) e0, hi->hw_address)))
+  ethernet_header_t *e0 = vlib_buffer_get_current (b0);
+  if (!ethernet_address_cast (e0->dst_address))
     {
-      return TO_BVI_ERR_BAD_MAC;
+      vnet_hw_interface_t *hi =
+	vnet_get_sup_hw_interface (vnet_main, bvi_sw_if_index);
+      if (!eth_mac_equal (e0->dst_address, hi->hw_address))
+	return TO_BVI_ERR_BAD_MAC;
     }
 
   /* Save L2 header position which may be changed due to packet replication */
   vnet_buffer (b0)->l2_hdr_offset = b0->current_data;
 
   /* Strip L2 header */
-  l2_len = vnet_buffer (b0)->l2.l2_len;
+  u8 l2_len = vnet_buffer (b0)->l2.l2_len;
   vlib_buffer_advance (b0, l2_len);
 
-  l3h = vlib_buffer_get_current (b0);
-  ethertype = clib_net_to_host_u16 (*(u16 *) (l3h - 2));
+  u8 *l3h = vlib_buffer_get_current (b0);
+  u16 ethertype = clib_net_to_host_u16 (*(u16 *) (l3h - 2));
 
   /* Set the input interface to be the BVI interface */
   vnet_buffer (b0)->sw_if_index[VLIB_RX] = bvi_sw_if_index;
@@ -82,9 +76,7 @@ l2_to_bvi (vlib_main_t * vlib_main,
   else
     {
       /* uncommon ethertype, check table */
-      u32 i0;
-
-      i0 = sparse_vec_index (l3_next->input_next_by_type, ethertype);
+      u32 i0 = sparse_vec_index (l3_next->input_next_by_type, ethertype);
       *next0 = vec_elt (l3_next->input_next_by_type, i0);
 
       if (i0 == SPARSE_VEC_INVALID_INDEX)
@@ -97,8 +89,7 @@ l2_to_bvi (vlib_main_t * vlib_main,
   vlib_increment_combined_counter
     (vnet_main->interface_main.combined_sw_if_counters
      + VNET_INTERFACE_COUNTER_RX,
-     vlib_main->thread_index,
-     vnet_buffer (b0)->sw_if_index[VLIB_RX],
+     vlib_main->thread_index, bvi_sw_if_index,
      1, vlib_buffer_length_in_chain (vlib_main, b0));
   return TO_BVI_ERR_OK;
 }