mlx5dv_get_data_direct_sysfs_path(3)      mlx5dv_get_data_direct_sysfs_path(3)

NAME
       mlx5dv_get_data_direct_sysfs_path - Get the sysfs path of a data direct
       device

SYNOPSIS
              #include <infiniband/mlx5dv.h>

              int mlx5dv_get_data_direct_sysfs_path(struct ibv_context *context, char *buf,
                                                    size_t buf_len)

DESCRIPTION
       Get the sysfs path of the data direct device that is associated with
       the given context.

       This lets an application to discover whether/which data direct device
       is associated with the given context.

ARGUMENTS
       context
              RDMA device context to work on.

       buf    The buffer where to place the sysfs path of the associated data
              direct device.

       buf_len

              The length of the buffer.

RETURN VALUE
       Upon success 0 is returned or the value of errno on a failure.

ERRORS
       The below specific error values should be considered.

       ENODEV

              There is no associated data direct device for the given *context*.

       ENOSPC

              The input buffer size is too small to hold the full sysfs path.

NOTES
       Upon succees, the caller should add the /sys/ prefix to get the full
       sysfs path.

SEE ALSO
       mlx5dv_reg_dmabuf_mr(3)

AUTHOR
       Yishai Hadas <yishaih@nvidia.com>

                                          mlx5dv_get_data_direct_sysfs_path(3)