mlx5: Use enum to indicate adapter page size

The Connect-IB adapter has an inherent page size which equals 4K.
Define an new enum that equals the page shift and use it instead of
using the value 12 throughout the code.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 5bcf57943b84..7c6b4ba49bec 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -551,7 +551,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
         }
         mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0);
         (*in)->ctx.log_pg_sz_remote_qpn =
-                cpu_to_be32((page_shift - 12) << 24);
+                cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
         (*in)->ctx.params2 = cpu_to_be32(offset << 6);
 
         (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
@@ -648,7 +648,8 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
                 goto err_buf;
         }
         (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
-        (*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - 12) << 24);
+        (*in)->ctx.log_pg_sz_remote_qpn =
+                cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
         /* Set "fast registration enabled" for all kernel QPs */
         (*in)->ctx.params1 |= cpu_to_be32(1 << 11);
         (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4);