1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* 3 * Copyright (c) 2019-2020, Mellanox Technologies inc. All rights reserved. 4 */ 5 6 #ifndef _MLX5_IB_DEVX_H 7 #define _MLX5_IB_DEVX_H 8 9 #include "mlx5_ib.h" 10 11 #define MLX5_MAX_DESTROY_INBOX_SIZE_DW MLX5_ST_SZ_DW(delete_fte_in) 12 struct devx_obj { 13 struct mlx5_ib_dev *ib_dev; 14 u64 obj_id; 15 u32 dinlen; /* destroy inbox length */ 16 u32 dinbox[MLX5_MAX_DESTROY_INBOX_SIZE_DW]; 17 u32 flags; 18 union { 19 struct mlx5_ib_devx_mr devx_mr; 20 struct mlx5_core_dct core_dct; 21 struct mlx5_core_cq core_cq; 22 u32 flow_counter_bulk_size; 23 }; 24 struct list_head event_sub; /* holds devx_event_subscription entries */ 25 }; 26 #if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS) 27 int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user); 28 void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid); 29 int mlx5_ib_devx_init(struct mlx5_ib_dev *dev); 30 void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev); 31 #else 32 static inline int mlx5_ib_devx_create(struct mlx5_ib_dev *dev, bool is_user) 33 { 34 return -EOPNOTSUPP; 35 } 36 static inline void mlx5_ib_devx_destroy(struct mlx5_ib_dev *dev, u16 uid) {} 37 static inline int mlx5_ib_devx_init(struct mlx5_ib_dev *dev) 38 { 39 return 0; 40 } 41 static inline void mlx5_ib_devx_cleanup(struct mlx5_ib_dev *dev) 42 { 43 } 44 #endif 45 #endif /* _MLX5_IB_DEVX_H */ 46