i40e: Strip VEB stats if they are disabled in HW

Due to performance reasons, VEB stats have been disabled in the hw. This
patch adds code to check for that condition before accumulating these
stats.

Change-ID: I7d805669476fedabb073790403703798ae5d878e
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 0044cb0..f6d97ad 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -325,6 +325,7 @@
 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE	BIT_ULL(33)
 #define I40E_FLAG_128_QP_RSS_CAPABLE		BIT_ULL(34)
 #define I40E_FLAG_WB_ON_ITR_CAPABLE		BIT_ULL(35)
+#define I40E_FLAG_VEB_STATS_ENABLED		BIT_ULL(37)
 #define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE	BIT_ULL(38)
 #define I40E_FLAG_VEB_MODE_ENABLED		BIT_ULL(40)