1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /* Copyright (c) 2019 Mellanox Technologies */
3 
4 #ifndef __MLX5_PCI_VSC_H__
5 #define __MLX5_PCI_VSC_H__
6 
7 enum mlx5_vsc_state {
8 	MLX5_VSC_UNLOCK,
9 	MLX5_VSC_LOCK,
10 };
11 
12 enum {
13 	MLX5_VSC_SPACE_SCAN_CRSPACE = 0x7,
14 };
15 
16 void mlx5_pci_vsc_init(struct mlx5_core_dev *dev);
17 int mlx5_vsc_gw_lock(struct mlx5_core_dev *dev);
18 int mlx5_vsc_gw_unlock(struct mlx5_core_dev *dev);
19 int mlx5_vsc_gw_set_space(struct mlx5_core_dev *dev, u16 space,
20 			  u32 *ret_space_size);
21 int mlx5_vsc_gw_read_block_fast(struct mlx5_core_dev *dev, u32 *data,
22 				int length);
23 
mlx5_vsc_accessible(struct mlx5_core_dev * dev)24 static inline bool mlx5_vsc_accessible(struct mlx5_core_dev *dev)
25 {
26 	return !!dev->vsc_addr;
27 }
28 
29 int mlx5_vsc_sem_set_space(struct mlx5_core_dev *dev, u16 space,
30 			   enum mlx5_vsc_state state);
31 
32 #endif /* __MLX5_PCI_VSC_H__ */
33