mlx4_en: clear all eth statistics when port goes up

Bug fix: Not all stats fields were cleared.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Reviewed-by: Yevgeny Petriln <yevgenyp@mellanox.co.il>
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 72fa807..be3f415 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -807,37 +807,49 @@ static void mlx4_en_restart(struct work_struct *work)
        mutex_unlock(&mdev->state_lock);
 }
 
-
-static int mlx4_en_open(struct net_device *dev)
+static void mlx4_en_clear_stats(struct net_device *dev)
 {
        struct mlx4_en_priv *priv = netdev_priv(dev);
        struct mlx4_en_dev *mdev = priv->mdev;
        int i;
-       int err = 0;
-
-       mutex_lock(&mdev->state_lock);
-
-       if (!mdev->device_up) {
-               en_err(priv, "Cannot open - device down/disabled\n");
-               err = -EBUSY;
-               goto out;
-       }
 
-       /* Reset HW statistics and performance counters */
        if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1))
                en_dbg(HW, priv, "Failed dumping statistics\n");
 
        memset(&priv->stats, 0, sizeof(priv->stats));
        memset(&priv->pstats, 0, sizeof(priv->pstats));
+       memset(&priv->pkstats, 0, sizeof(priv->pkstats));
+       memset(&priv->port_stats, 0, sizeof(priv->port_stats));
 
        for (i = 0; i < priv->tx_ring_num; i++) {
                priv->tx_ring[i].bytes = 0;
                priv->tx_ring[i].packets = 0;
+               priv->tx_ring[i].tx_csum = 0;
        }
        for (i = 0; i < priv->rx_ring_num; i++) {
                priv->rx_ring[i].bytes = 0;
                priv->rx_ring[i].packets = 0;
+               priv->rx_ring[i].csum_ok = 0;
+               priv->rx_ring[i].csum_none = 0;
        }
+}
+
+static int mlx4_en_open(struct net_device *dev)
+{
+       struct mlx4_en_priv *priv = netdev_priv(dev);
+       struct mlx4_en_dev *mdev = priv->mdev;
+       int err = 0;
+
+       mutex_lock(&mdev->state_lock);
+
+       if (!mdev->device_up) {
+               en_err(priv, "Cannot open - device down/disabled\n");
+               err = -EBUSY;
+               goto out;
+       }
+
+       /* Reset HW statistics and SW counters */
+       mlx4_en_clear_stats(dev);
 
        err = mlx4_en_start_port(dev);
        if (err)