IB/mlx5: Use enumerations for PI copy mask

In case input and output space parameters match, we can use a copy
mask from input and output space.  Use enums for those.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

2 files changed, 6 insertions, 3 deletions

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 8c574b63d77b..554410c2655d 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -2095,11 +2095,11 @@ static int mlx5_set_bsf(struct ib_mr *sig_mr,
                         /* Same block structure */
                         basic->bsf_size_sbs = 1 << 4;
                         if (mem->sig.dif.bg_type == wire->sig.dif.bg_type)
-                                basic->wire.copy_byte_mask |= 0xc0;
+                                basic->wire.copy_byte_mask |= MLX5_CPY_GRD_MASK;
                         if (mem->sig.dif.app_tag == wire->sig.dif.app_tag)
-                                basic->wire.copy_byte_mask |= 0x30;
+                                basic->wire.copy_byte_mask |= MLX5_CPY_APP_MASK;
                         if (mem->sig.dif.ref_tag == wire->sig.dif.ref_tag)
-                                basic->wire.copy_byte_mask |= 0x0f;
+                                basic->wire.copy_byte_mask |= MLX5_CPY_REF_MASK;
                 } else
                         basic->wire.bs_selector = bs_selector(wire->sig.dif.pi_interval);
 
diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 9709b30e2d69..4aa5634dc210 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -40,6 +40,9 @@
 #define MLX5_SIG_WQE_SIZE       (MLX5_SEND_WQE_BB * 5)
 #define MLX5_DIF_SIZE           8
 #define MLX5_STRIDE_BLOCK_OP    0x400
+#define MLX5_CPY_GRD_MASK       0xc0
+#define MLX5_CPY_APP_MASK       0x30
+#define MLX5_CPY_REF_MASK       0x0f
 
 enum mlx5_qp_optpar {
         MLX5_QP_OPTPAR_ALT_ADDR_PATH            = 1 << 0,