1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright 2020 Mellanox Technologies, Ltd
5 #ifndef RTE_PMD_MLX5_COMMON_OS_H_
6 #define RTE_PMD_MLX5_COMMON_OS_H_
10 #include <rte_errno.h>
12 #include "mlx5_autoconf.h"
13 #include "mlx5_glue.h"
14 #include "mlx5_malloc.h"
15 #include "mlx5_common_mr.h"
16 #include "mlx5_win_ext.h"
19 * This API allocates aligned or non-aligned memory. The free can be on either
20 * aligned or nonaligned memory. To be protected - even though there may be no
21 * alignment - in Windows this API will unconditioanlly call _aligned_malloc()
22 * with at least a minimal alignment size.
25 * The alignment value, which must be an integer power of 2 (or 0 for
28 * Size in bytes to allocate
31 * Valid pointer to allocated memory, NULL in case of failure
34 mlx5_os_malloc(size_t align, size_t size)
36 if (align < MLX5_MALLOC_ALIGNMENT)
37 align = MLX5_MALLOC_ALIGNMENT;
38 return _aligned_malloc(size, align);
42 * This API de-allocates a memory that originally could have been allocated
43 * aligned or non-aligned. In Windows since the allocation was with
44 * _aligned_malloc() - it is safe to always call _aligned_free().
47 * Pointer to address to free
51 mlx5_os_free(void *addr)
57 * Get fd. Given a pointer to DevX channel object of type
58 * 'struct mlx5dv_devx_event_channel*' - return its fd.
59 * Under Windows it is a stub.
62 * Pointer to channel object.
68 mlx5_os_get_devx_channel_fd(void *channel)
76 * Get device name. Given a device pointer - return a
77 * pointer to the corresponding device name.
83 * Pointer to device name if dev is valid, NULL otherwise.
85 static inline const char *
86 mlx5_os_get_dev_device_name(void *dev)
90 return ((struct devx_device *)dev)->name;
94 * Get device name. Given a context pointer - return a
95 * pointer to the corresponding device name.
101 * Pointer to device name if ctx is valid, NULL otherwise.
103 static inline const char *
104 mlx5_os_get_ctx_device_name(void *ctx)
108 return ((mlx5_context_st *)ctx)->mlx5_dev.name;
112 * Get a device path name. Given acontext pointer - return a
113 * pointer to the corresponding device path name.
116 * Pointer to context.
119 * Pointer to device path name if ctx is valid, NULL otherwise.
122 static inline const char *
123 mlx5_os_get_ctx_device_path(void *ctx)
127 return ((mlx5_context_st *)ctx)->mlx5_dev.dev_pnp_id;
131 * Get umem id. Given a pointer to umem object of type return its id.
134 * Pointer to umem object.
137 * The umem id if umem is valid, 0 otherwise.
139 static inline uint32_t
140 mlx5_os_get_umem_id(void *umem)
144 return ((struct mlx5_devx_umem *)umem)->umem_id;
147 void *mlx5_os_alloc_pd(void *ctx);
148 int mlx5_os_dealloc_pd(void *pd);
149 void *mlx5_os_umem_reg(void *ctx, void *addr, size_t size, uint32_t access);
150 int mlx5_os_umem_dereg(void *pumem);
151 int mlx5_os_reg_mr(void *pd,
152 void *addr, size_t length, struct mlx5_pmd_mr *pmd_mr);
153 void mlx5_os_dereg_mr(struct mlx5_pmd_mr *pmd_mr);
154 #endif /* RTE_PMD_MLX5_COMMON_OS_H_ */