diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/en_tx.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/en_tx.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c index 454d9fea640e..e3357bf523df 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c @@ -46,7 +46,7 @@ #include "mlx4_en.h" int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, - struct mlx4_en_tx_ring **pring, int qpn, u32 size, + struct mlx4_en_tx_ring **pring, u32 size, u16 stride, int node, int queue_index) { struct mlx4_en_dev *mdev = priv->mdev; @@ -112,11 +112,17 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, ring, ring->buf, ring->size, ring->buf_size, (unsigned long long) ring->wqres.buf.direct.map); - ring->qpn = qpn; + err = mlx4_qp_reserve_range(mdev->dev, 1, 1, &ring->qpn, + MLX4_RESERVE_ETH_BF_QP); + if (err) { + en_err(priv, "failed reserving qp for TX ring\n"); + goto err_map; + } + err = mlx4_qp_alloc(mdev->dev, ring->qpn, &ring->qp, GFP_KERNEL); if (err) { en_err(priv, "Failed allocating qp %d\n", ring->qpn); - goto err_map; + goto err_reserve; } ring->qp.event = mlx4_en_sqp_event; @@ -143,6 +149,8 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, *pring = ring; return 0; +err_reserve: + mlx4_qp_release_range(mdev->dev, ring->qpn, 1); err_map: mlx4_en_unmap_buffer(&ring->wqres.buf); err_hwq_res: @@ -479,8 +487,8 @@ void mlx4_en_tx_irq(struct mlx4_cq *mcq) struct mlx4_en_cq *cq = container_of(mcq, struct mlx4_en_cq, mcq); struct mlx4_en_priv *priv = netdev_priv(cq->dev); - if (priv->port_up) - napi_schedule(&cq->napi); + if (likely(priv->port_up)) + napi_schedule_irqoff(&cq->napi); else mlx4_en_arm_cq(priv, cq); } @@ -954,7 +962,17 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev) tx_desc->ctrl.owner_opcode = op_own; if (send_doorbell) { wmb(); - iowrite32(ring->doorbell_qpn, + /* Since there is no iowrite*_native() that writes the + * value as is, without byteswapping - using the one + * the doesn't do byteswapping in the relevant arch + * endianness. + */ +#if defined(__LITTLE_ENDIAN) + iowrite32( +#else + iowrite32be( +#endif + ring->doorbell_qpn, ring->bf.uar->map + MLX4_SEND_DOORBELL); } else { ring->xmit_more++; |