IB/mlx5: Allow future extension of libmlx5 input data

[linux-2.6-block.git] / drivers / infiniband / hw / mlx5 / mlx5_ib.h

diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index ae3bc4a1bfede838c3cf995f47748d52d0c62710..e1a4b93dce6b5957ac0a0ab4941e178e290c0e89 100644 (file)
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -90,7 +90,6 @@ enum mlx5_ib_latency_class {
        MLX5_IB_LATENCY_CLASS_LOW,
        MLX5_IB_LATENCY_CLASS_MEDIUM,
        MLX5_IB_LATENCY_CLASS_HIGH,
-       MLX5_IB_LATENCY_CLASS_FAST_PATH
 };
 
 enum mlx5_ib_mad_ifc_flags {
@@ -129,6 +128,7 @@ struct mlx5_ib_ucontext {
        unsigned long           upd_xlt_page;
        /* protect ODP/KSM */
        struct mutex            upd_xlt_page_mutex;
+       u64                     lib_caps;
 };
 
 static inline struct mlx5_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext)
@@ -975,4 +975,17 @@ static inline int get_srq_user_index(struct mlx5_ib_ucontext *ucontext,
 
        return verify_assign_uidx(cqe_version, ucmd->uidx, user_index);
 }
+
+static inline int get_uars_per_sys_page(struct mlx5_ib_dev *dev, bool lib_support)
+{
+       return lib_support && MLX5_CAP_GEN(dev->mdev, uar_4k) ?
+                               MLX5_UARS_IN_PAGE : 1;
+}
+
+static inline int get_num_uars(struct mlx5_ib_dev *dev,
+                              struct mlx5_bfreg_info *bfregi)
+{
+       return get_uars_per_sys_page(dev, bfregi->lib_uar_4k) * bfregi->num_sys_pages;
+}
+
 #endif /* MLX5_IB_H */