1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
 2/* Copyright (c) 2021 Mellanox Technologies Ltd */
 3
 4#ifndef __LIB_MLX5_SF_H__
 5#define __LIB_MLX5_SF_H__
 6
 7#include <linux/mlx5/driver.h>
 8
 9static inline u16 mlx5_sf_start_function_id(const struct mlx5_core_dev *dev)
10{
11	return MLX5_CAP_GEN(dev, sf_base_id);
12}
13
14#ifdef CONFIG_MLX5_SF
15
16static inline bool mlx5_sf_supported(const struct mlx5_core_dev *dev)
17{
18	return MLX5_CAP_GEN(dev, sf);
19}
20
21static inline u16 mlx5_sf_max_functions(const struct mlx5_core_dev *dev)
22{
23	if (!mlx5_sf_supported(dev))
24		return 0;
25	if (MLX5_CAP_GEN(dev, max_num_sf))
26		return MLX5_CAP_GEN(dev, max_num_sf);
27	else
28		return 1 << MLX5_CAP_GEN(dev, log_max_sf);
29}
30
31#else
32
33static inline bool mlx5_sf_supported(const struct mlx5_core_dev *dev)
34{
35	return false;
36}
37
38static inline u16 mlx5_sf_max_functions(const struct mlx5_core_dev *dev)
39{
40	return 0;
41}
42
43#endif
44
45#endif