diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/srq.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/srq.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/srq.c b/drivers/net/ethernet/mellanox/mlx4/srq.c index e329fe1f11b..79fd269e2c5 100644 --- a/drivers/net/ethernet/mellanox/mlx4/srq.c +++ b/drivers/net/ethernet/mellanox/mlx4/srq.c @@ -298,3 +298,18 @@ void mlx4_cleanup_srq_table(struct mlx4_dev *dev) return; mlx4_bitmap_cleanup(&mlx4_priv(dev)->srq_table.bitmap); } + +struct mlx4_srq *mlx4_srq_lookup(struct mlx4_dev *dev, u32 srqn) +{ + struct mlx4_srq_table *srq_table = &mlx4_priv(dev)->srq_table; + struct mlx4_srq *srq; + unsigned long flags; + + spin_lock_irqsave(&srq_table->lock, flags); + srq = radix_tree_lookup(&srq_table->tree, + srqn & (dev->caps.num_srqs - 1)); + spin_unlock_irqrestore(&srq_table->lock, flags); + + return srq; +} +EXPORT_SYMBOL_GPL(mlx4_srq_lookup); |