mlx4_ib_steer_qp_free
void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count);
mlx4_ib_steer_qp_free(dev, qpn, 1);
mlx4_ib_steer_qp_free(dev, qp->mqp.qpn, 1);