1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright 2020 Mellanox Technologies, Ltd 3 */ 4 5 #ifndef RTE_PMD_MLX5_COMMON_OS_H_ 6 #define RTE_PMD_MLX5_COMMON_OS_H_ 7 8 #include <stdio.h> 9 10 #include <rte_pci.h> 11 #include <rte_debug.h> 12 #include <rte_atomic.h> 13 #include <rte_log.h> 14 #include <rte_kvargs.h> 15 #include <rte_devargs.h> 16 17 #include "mlx5_autoconf.h" 18 #include "mlx5_glue.h" 19 20 /** 21 * Get device name. Given an ibv_device pointer - return a 22 * pointer to the corresponding device name. 23 * 24 * @param[in] dev 25 * Pointer to ibv device. 26 * 27 * @return 28 * Pointer to device name if dev is valid, NULL otherwise. 29 */ 30 static inline const char * 31 mlx5_os_get_dev_device_name(void *dev) 32 { 33 if (!dev) 34 return NULL; 35 return ((struct ibv_device *)dev)->name; 36 } 37 38 /** 39 * Get ibv device name. Given an ibv_context pointer - return a 40 * pointer to the corresponding device name. 41 * 42 * @param[in] ctx 43 * Pointer to ibv context. 44 * 45 * @return 46 * Pointer to device name if ctx is valid, NULL otherwise. 47 */ 48 static inline const char * 49 mlx5_os_get_ctx_device_name(void *ctx) 50 { 51 if (!ctx) 52 return NULL; 53 return ((struct ibv_context *)ctx)->device->name; 54 } 55 56 /** 57 * Get ibv device path name. Given an ibv_context pointer - return a 58 * pointer to the corresponding device path name. 59 * 60 * @param[in] ctx 61 * Pointer to ibv context. 62 * 63 * @return 64 * Pointer to device path name if ctx is valid, NULL otherwise. 65 */ 66 67 static inline const char * 68 mlx5_os_get_ctx_device_path(void *ctx) 69 { 70 if (!ctx) 71 return NULL; 72 73 return ((struct ibv_context *)ctx)->device->ibdev_path; 74 } 75 76 /** 77 * Get umem id. Given a pointer to umem object of type 78 * 'struct mlx5dv_devx_umem *' - return its id. 79 * 80 * @param[in] umem 81 * Pointer to umem object. 82 * 83 * @return 84 * The umem id if umem is valid, 0 otherwise. 85 */ 86 static inline uint32_t 87 mlx5_os_get_umem_id(void *umem) 88 { 89 if (!umem) 90 return 0; 91 return ((struct mlx5dv_devx_umem *)umem)->umem_id; 92 } 93 #endif /* RTE_PMD_MLX5_COMMON_OS_H_ */ 94