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 #ifdef HAVE_INFINIBAND_VERBS_H 19 #include <infiniband/verbs.h> 20 #endif 21 #ifdef HAVE_INFINIBAND_MLX5DV_H 22 #include <infiniband/mlx5dv.h> 23 #endif 24 25 /** 26 * Get device name. Given an ibv_device pointer - return a 27 * pointer to the corresponding device name. 28 * 29 * @param[in] dev 30 * Pointer to ibv device. 31 * 32 * @return 33 * Pointer to device name if dev is valid, NULL otherwise. 34 */ 35 static inline const char * 36 mlx5_os_get_dev_device_name(void *dev) 37 { 38 if (!dev) 39 return NULL; 40 return ((struct ibv_device *)dev)->name; 41 } 42 43 /** 44 * Get ibv device name. Given an ibv_context pointer - return a 45 * pointer to the corresponding device name. 46 * 47 * @param[in] ctx 48 * Pointer to ibv context. 49 * 50 * @return 51 * Pointer to device name if ctx is valid, NULL otherwise. 52 */ 53 static inline const char * 54 mlx5_os_get_ctx_device_name(void *ctx) 55 { 56 if (!ctx) 57 return NULL; 58 return ((struct ibv_context *)ctx)->device->name; 59 } 60 61 /** 62 * Get ibv device path name. Given an ibv_context pointer - return a 63 * pointer to the corresponding device path name. 64 * 65 * @param[in] ctx 66 * Pointer to ibv context. 67 * 68 * @return 69 * Pointer to device path name if ctx is valid, NULL otherwise. 70 */ 71 72 static inline const char * 73 mlx5_os_get_ctx_device_path(void *ctx) 74 { 75 if (!ctx) 76 return NULL; 77 78 return ((struct ibv_context *)ctx)->device->ibdev_path; 79 } 80 81 /** 82 * Get umem id. Given a pointer to umem object of type 83 * 'struct mlx5dv_devx_umem *' - return its id. 84 * 85 * @param[in] umem 86 * Pointer to umem object. 87 * 88 * @return 89 * The umem id if umem is valid, 0 otherwise. 90 */ 91 static inline uint32_t 92 mlx5_os_get_umem_id(void *umem) 93 { 94 if (!umem) 95 return 0; 96 return ((struct mlx5dv_devx_umem *)umem)->umem_id; 97 } 98 #endif /* RTE_PMD_MLX5_COMMON_OS_H_ */ 99