mirror of https://github.com/F-Stack/f-stack.git
205 lines
4.1 KiB
C
205 lines
4.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2020 Mellanox Technologies, Ltd
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*/
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#ifndef RTE_PMD_MLX5_COMMON_OS_H_
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#define RTE_PMD_MLX5_COMMON_OS_H_
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#include <stdio.h>
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#include <rte_pci.h>
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#include <rte_debug.h>
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#include <rte_atomic.h>
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#include <rte_log.h>
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#include <rte_kvargs.h>
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#include <rte_devargs.h>
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#include "mlx5_autoconf.h"
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#include "mlx5_glue.h"
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/**
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* Get device name. Given an ibv_device pointer - return a
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* pointer to the corresponding device name.
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*
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* @param[in] dev
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* Pointer to ibv device.
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*
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* @return
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* Pointer to device name if dev is valid, NULL otherwise.
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*/
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static inline const char *
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mlx5_os_get_dev_device_name(void *dev)
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{
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if (!dev)
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return NULL;
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return ((struct ibv_device *)dev)->name;
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}
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/**
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* Get ibv device name. Given an ibv_context pointer - return a
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* pointer to the corresponding device name.
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*
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* @param[in] ctx
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* Pointer to ibv context.
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*
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* @return
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* Pointer to device name if ctx is valid, NULL otherwise.
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*/
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static inline const char *
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mlx5_os_get_ctx_device_name(void *ctx)
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{
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if (!ctx)
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return NULL;
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return ((struct ibv_context *)ctx)->device->name;
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}
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/**
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* Get ibv device path name. Given an ibv_context pointer - return a
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* pointer to the corresponding device path name.
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*
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* @param[in] ctx
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* Pointer to ibv context.
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*
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* @return
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* Pointer to device path name if ctx is valid, NULL otherwise.
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*/
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static inline const char *
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mlx5_os_get_ctx_device_path(void *ctx)
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{
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if (!ctx)
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return NULL;
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return ((struct ibv_context *)ctx)->device->ibdev_path;
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}
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/**
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* Get umem id. Given a pointer to umem object of type
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* 'struct mlx5dv_devx_umem *' - return its id.
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*
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* @param[in] umem
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* Pointer to umem object.
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*
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* @return
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* The umem id if umem is valid, 0 otherwise.
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*/
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static inline uint32_t
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mlx5_os_get_umem_id(void *umem)
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{
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if (!umem)
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return 0;
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return ((struct mlx5dv_devx_umem *)umem)->umem_id;
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}
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/**
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* Get fd. Given a pointer to DevX channel object of type
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* 'struct mlx5dv_devx_event_channel*' - return its fd.
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*
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* @param[in] channel
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* Pointer to channel object.
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*
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* @return
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* The fd if channel is valid, 0 otherwise.
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*/
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static inline int
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mlx5_os_get_devx_channel_fd(void *channel)
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{
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if (!channel)
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return 0;
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return ((struct mlx5dv_devx_event_channel *)channel)->fd;
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}
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/**
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* Get mmap offset. Given a pointer to an DevX UAR object of type
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* 'struct mlx5dv_devx_uar *' - return its mmap offset.
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*
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* @param[in] uar
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* Pointer to UAR object.
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*
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* @return
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* The mmap offset if uar is valid, 0 otherwise.
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*/
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static inline off_t
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mlx5_os_get_devx_uar_mmap_offset(void *uar)
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{
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#ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
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if (!uar)
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return 0;
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return ((struct mlx5dv_devx_uar *)uar)->mmap_off;
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#else
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RTE_SET_USED(uar);
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return 0;
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#endif
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}
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/**
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* Get base addr pointer. Given a pointer to an UAR object of type
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* 'struct mlx5dv_devx_uar *' - return its base address.
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*
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* @param[in] uar
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* Pointer to an UAR object.
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*
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* @return
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* The base address if UAR is valid, 0 otherwise.
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*/
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static inline void *
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mlx5_os_get_devx_uar_base_addr(void *uar)
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{
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#ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
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if (!uar)
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return NULL;
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return ((struct mlx5dv_devx_uar *)uar)->base_addr;
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#else
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RTE_SET_USED(uar);
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return NULL;
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#endif
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}
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/**
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* Get reg addr pointer. Given a pointer to an UAR object of type
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* 'struct mlx5dv_devx_uar *' - return its reg address.
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*
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* @param[in] uar
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* Pointer to an UAR object.
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*
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* @return
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* The reg address if UAR is valid, 0 otherwise.
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*/
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static inline void *
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mlx5_os_get_devx_uar_reg_addr(void *uar)
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{
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#ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
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if (!uar)
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return NULL;
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return ((struct mlx5dv_devx_uar *)uar)->reg_addr;
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#else
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RTE_SET_USED(uar);
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return NULL;
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#endif
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}
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/**
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* Get page id. Given a pointer to an UAR object of type
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* 'struct mlx5dv_devx_uar *' - return its page id.
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*
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* @param[in] uar
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* Pointer to an UAR object.
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*
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* @return
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* The page id if UAR is valid, 0 otherwise.
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*/
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static inline uint32_t
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mlx5_os_get_devx_uar_page_id(void *uar)
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{
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#ifdef HAVE_MLX5DV_DEVX_UAR_OFFSET
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if (!uar)
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return 0;
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return ((struct mlx5dv_devx_uar *)uar)->page_id;
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#else
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RTE_SET_USED(uar);
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return 0;
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#endif
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}
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#endif /* RTE_PMD_MLX5_COMMON_OS_H_ */
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