"Practical way of thinking" and Marxist Philosophy Ontology

At present,an increasing number of scholars agree that the essence of Marx's philosophy is practical way of thinking. However,There are two entirely different interpretations on this view.one point supports that the essence of Marxism philosophy is Ontology of practice;another view is that the substance of Marx's philosophy is establishment of practice point of view of thinking.The latter believes that ontological way of thinking can not really reveal the essence of Marxist philosophy.But there are still some unresolved problems after the view ofWays of thinking of pratical opinion is established.These problems are as follows.Whether or not does Marxist philosophy have Ontology? As metaphysics,In what sense does Marx's philosophy end philosophy?