From b477ba628a283ba93e631d66907f91df80e82267 Mon Sep 17 00:00:00 2001 From: Eugenia Emantayev Date: Thu, 19 Jan 2012 09:42:37 +0000 Subject: [PATCH] mlx4_en: clear all eth statistics when port goes up Bug fix: Not all stats fields were cleared. Signed-off-by: Eugenia Emantayev Reviewed-by: Yevgeny Petriln Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 36 +++++++++++++++++--------- 1 file changed, 24 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 72fa807..be3f415 100644 --- 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) -- 2.7.4