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| mlx5dv_open_device(3) | Library Functions Manual | mlx5dv_open_device(3) |
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; };
-
A bitwise OR of the various values described below.
*MLX5DV_CONTEXT_FLAGS_DEVX*:
Allocate a DEVX context
-
Bitmask specifying what fields in the structure are valid
*MLX5DV_CONTEXT_ATTR_MASK_FD_ARRAY*:
Valid value in *fds*
-
Used to pass a file descriptor array.
ibv_fd_arr¶
-
struct ibv_fd_arr {
int *arr;
uint32_t count; };
-
Pointer to the file descriptor array.
-
Number of elements in the array.
RETURN VALUE¶
Returns a pointer to the allocated device context, or NULL if the request fails.
SEE ALSO¶
AUTHOR¶
Yishai Hadas yishaih@mellanox.com