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)