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net/mlx4_en: Do not query stats when device port is down 

There are no counters allocated to the eth device when the port is down, so
this query is meaningless at that time.

It also leads to querying incorrect counters (since the counter_index is not
valid when the device port is down).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jack Morgenstein 2013-06-25 12:09:30 +03:00 committed by David S. Miller
parent 8850494a33
commit 6123db2ec5
1 changed files with 5 additions and 4 deletions
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9
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
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@ -1375,12 +1375,13 @@ static void mlx4_en_do_get_stats(struct work_struct *work)
mutex_lock(&mdev->state_lock);
if (mdev->device_up) {
err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
if (err)
en_dbg(HW, priv, "Could not update stats\n");
if (priv->port_up) {
err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0);
if (err)
en_dbg(HW, priv, "Could not update stats\n");
if (priv->port_up)
mlx4_en_auto_moderation(priv);
}
queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY);
}