static int mlx5_fpga_conn_create_mkey(struct mlx5_core_dev *mdev, u32 pdn,
				      struct mlx5_core_mkey *mkey)
{
	int inlen = MLX5_ST_SZ_BYTES(create_mkey_in);
	void *mkc;
	u32 *in;
	int err;

	in = kvzalloc(inlen, GFP_KERNEL);
	if (!in)
		return -ENOMEM;

	mkc = MLX5_ADDR_OF(create_mkey_in, in, memory_key_mkey_entry);
	MLX5_SET(mkc, mkc, access_mode_1_0, MLX5_MKC_ACCESS_MODE_PA);
	MLX5_SET(mkc, mkc, lw, 1);
	MLX5_SET(mkc, mkc, lr, 1);

	MLX5_SET(mkc, mkc, pd, pdn);
	MLX5_SET(mkc, mkc, length64, 1);
	MLX5_SET(mkc, mkc, qpn, 0xffffff);

	err = mlx5_core_create_mkey(mdev, mkey, in, inlen);

	kvfree(in);
	return err;
}