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path: root/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_tx.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_tx.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index 42a5f06ee74b..5740b465ef84 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -110,8 +110,20 @@ u16 mlx5e_select_queue(struct net_device *dev, struct sk_buff *skb,
{
struct mlx5e_priv *priv = netdev_priv(dev);
int channel_ix = fallback(dev, skb);
- int up = (netdev_get_num_tc(dev) && skb_vlan_tag_present(skb)) ?
- skb->vlan_tci >> VLAN_PRIO_SHIFT : 0;
+ int up = 0;
+
+ if (!netdev_get_num_tc(dev))
+ return channel_ix;
+
+ if (skb_vlan_tag_present(skb))
+ up = skb->vlan_tci >> VLAN_PRIO_SHIFT;
+
+ /* channel_ix can be larger than num_channels since
+ * dev->num_real_tx_queues = num_channels * num_tc
+ */
+ if (channel_ix >= priv->params.num_channels)
+ channel_ix = reciprocal_scale(channel_ix,
+ priv->params.num_channels);
return priv->channeltc_to_txq_map[channel_ix][up];
}