forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

net/mlx4_en: Configure the XPS queue mapping on driver load

Browse source 
Only TX rings of User Piority 0 are mapped.
TX rings of other UP's are using UP 0 mapping.
XPS is not in use when num_tc is set.

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 2013-12-19 21:20:14 +02:00 • committed by David S. Miller
commit d03a68f821
3 changed files with 16 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
View file

@ -1910,8 +1910,10 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
prof->tx_ring_size, i, TX, node))
goto err;
if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], priv->base_tx_qpn + i,
prof->tx_ring_size, TXBB_SIZE, node))
if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i],
priv->base_tx_qpn + i,
prof->tx_ring_size, TXBB_SIZE,
node, i))
goto err;
}

9
drivers/net/ethernet/mellanox/mlx4/en_tx.c
View file

@ -55,7 +55,7 @@ MODULE_PARM_DESC(inline_thold, "threshold for using inline data");
int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring **pring, int qpn, u32 size,
u16 stride, int node)
u16 stride, int node, int queue_index)
{
struct mlx4_en_dev *mdev = priv->mdev;
struct mlx4_en_tx_ring *ring;
@ -140,6 +140,10 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
ring->bf_enabled = true;
ring->hwtstamp_tx_type = priv->hwtstamp_config.tx_type;
ring->queue_index = queue_index;
if (queue_index < priv->num_tx_rings_p_up && cpu_online(queue_index))
cpumask_set_cpu(queue_index, &ring->affinity_mask);
*pring = ring;
return 0;
@ -206,6 +210,9 @@ int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
err = mlx4_qp_to_ready(mdev->dev, &ring->wqres.mtt, &ring->context,
&ring->qp, &ring->qp_state);
if (!user_prio && cpu_online(ring->queue_index))
netif_set_xps_queue(priv->dev, &ring->affinity_mask,
ring->queue_index);
return err;
}

5
drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
View file

@ -255,6 +255,8 @@ struct mlx4_en_tx_ring {
u16 poll_cnt;
struct mlx4_en_tx_info *tx_info;
u8 *bounce_buf;
u8 queue_index;
cpumask_t affinity_mask;
u32 last_nr_txbb;
struct mlx4_qp qp;
struct mlx4_qp_context context;
@ -719,7 +721,8 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring **pring,
int qpn, u32 size, u16 stride, int node);
int qpn, u32 size, u16 stride,
int node, int queue_index);
void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
struct mlx4_en_tx_ring **pring);
int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,