mlx5dv_open_device - Open an RDMA device context for the mlx5 provider

NAME  SYNOPSIS  DESCRIPTION  ARGUMENTS  mlx5dv_context_attr  ibv_fd_arr  RETURN VALUE  SEE ALSO  AUTHOR 

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NAME

mlx5dv_open_device - Open an RDMA device context for the mlx5 provider

SYNOPSIS

#include <infiniband/mlx5dv.h>


struct ibv_context *
mlx5dv_open_device(struct ibv_device *device, struct mlx5dv_context_attr *attr);

DESCRIPTION

Open an RDMA device context with specific mlx5 provider attributes.

ARGUMENTS

device

RDMA device to open.

attr

mlx5dv_context_attr

struct mlx5dv_context_attr {
        uint32_t flags;
        uint64_t comp_mask;
        struct ibv_fd_arr *fds;
};

flags

A bitwise OR of the various values described below.

*MLX5DV_CONTEXT_FLAGS_DEVX*:
Allocate a DEVX context

comp_mask

Bitmask specifying what fields in the structure are valid


*MLX5DV_CONTEXT_ATTR_MASK_FD_ARRAY*:
Valid value in *fds*

fds

Used to pass a file descriptor array.

ibv_fd_arr

struct ibv_fd_arr {
        int *arr;
        uint32_t count;
};

	arr		Pointer to the file descriptor array.
	count		Number of elements in the array.

RETURN VALUE

Returns a pointer to the allocated device context, or NULL if the request fails.

SEE ALSO

ibv_open_device(3)

AUTHOR

Yishai Hadas <[email protected]>

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