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IB/mlx5: Consolidate use_umr checks into single function 

Introduce helper function to unify various use_umr checks.

Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190815083834.9245-6-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Moni Shoua 2019-08-15 11:38:31 +03:00 committed by Doug Ledford
parent 60c78668ae
commit 0e6613b41e
2 changed files with 15 additions and 3 deletions
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14
drivers/infiniband/hw/mlx5/mlx5_ib.h
View File

@ -1475,4 +1475,18 @@ int bfregn_to_uar_index(struct mlx5_ib_dev *dev,
bool dyn_bfreg);
int mlx5_ib_qp_set_counter(struct ib_qp *qp, struct rdma_counter *counter);
static inline bool mlx5_ib_can_use_umr(struct mlx5_ib_dev *dev,
bool do_modify_atomic)
{
if (MLX5_CAP_GEN(dev->mdev, umr_modify_entity_size_disabled))
return false;
if (do_modify_atomic &&
MLX5_CAP_GEN(dev->mdev, atomic) &&
MLX5_CAP_GEN(dev->mdev, umr_modify_atomic_disabled))
return false;
return true;
}
#endif /* MLX5_IB_H */

4
drivers/infiniband/hw/mlx5/mr.c
View File

@ -1293,9 +1293,7 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
if (err < 0)
return ERR_PTR(err);
use_umr = !MLX5_CAP_GEN(dev->mdev, umr_modify_entity_size_disabled) &&
(!MLX5_CAP_GEN(dev->mdev, umr_modify_atomic_disabled) ||
!MLX5_CAP_GEN(dev->mdev, atomic));
use_umr = mlx5_ib_can_use_umr(dev, true);
if (order <= mr_cache_max_order(dev) && use_umr) {
mr = alloc_mr_from_cache(pd, umem, virt_addr, length, ncont,