net/mlx4_en: Save slave ethtool stats command

Following the previous patch, as an optimization, the slave will
not even bother sending the DUMP_ETH_STATS command over the
comm channel.

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 314f54c..12c99a2 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1917,8 +1917,9 @@ static void mlx4_en_clear_stats(struct net_device *dev)
        struct mlx4_en_dev *mdev = priv->mdev;
        int i;
 
-       if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
-               en_dbg(HW, priv, "Failed dumping statistics\n");
+       if (!mlx4_is_slave(mdev->dev))
+               if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
+                       en_dbg(HW, priv, "Failed dumping statistics\n");
 
        memset(&priv->pstats, 0, sizeof(priv->pstats));
        memset(&priv->pkstats, 0, sizeof(priv->pkstats));