mlx4_en: Checksum counters per ring

Not updating common counters from data path.
The checksum counters are per ring, summarizing them when collecting statistics.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index 3b753f7..a6b5cf6 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -249,6 +249,7 @@
 	struct mlx4_srq dummy;
 	unsigned long bytes;
 	unsigned long packets;
+	unsigned long tx_csum;
 	spinlock_t comp_lock;
 	struct mlx4_bf bf;
 	bool bf_enabled;
@@ -275,6 +276,8 @@
 	void *rx_info;
 	unsigned long bytes;
 	unsigned long packets;
+	unsigned long csum_ok;
+	unsigned long csum_none;
 };