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mlx4: Don't bother using skb_tx_hash in mlx4_en_select_queue 

The code in the fallback path has supported XDP in conjunction with the Tx
traffic classification for TCs for over a year now. So instead of just
calling skb_tx_hash for every packet we are better off using the fallback
since that will record the Tx queue to the socket and then that can be used
instead of having to recompute the hash every time.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Duyck 2018-04-27 14:06:45 -04:00 committed by David S. Miller
parent d80d8d5573
commit b86629ebd5
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/mellanox/mlx4/en_tx.c
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@ -694,7 +694,7 @@ u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb,
u16 rings_p_up = priv->num_tx_rings_p_up; u16 rings_p_up = priv->num_tx_rings_p_up;
if (netdev_get_num_tc(dev)) if (netdev_get_num_tc(dev))
return skb_tx_hash(dev, skb); return fallback(dev, skb);
return fallback(dev, skb) % rings_p_up; return fallback(dev, skb) % rings_p_up;
} }