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net/mlx4_en: User prio mapping gets corrupted when changing number of channels 

When using ethtool set_channels, mlx4_en_setup_tc is always called, even
when it was not configured. Fixed code to call mlx4_en_setup_tc() only
if needed.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Shamay 2014-05-14 12:15:11 +03:00 committed by David S. Miller
parent 2eacc23c42
commit f5b6345ba8
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
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@ -1151,7 +1151,8 @@ static int mlx4_en_set_channels(struct net_device *dev,
netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
if (dev->num_tc)
mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);