def METHOD_NAME(
    storage_cluster_obj,
    config_map_obj,
    pod_obj,
    namespace,
):
    """
    Enable nfs feature and ROOK_CSI_ENABLE_NFS
    Steps:
    1:- Enable nfs feature for storage-cluster
    2:- Enable ROOK_CSI_ENABLE_NFS via patch request
    3:- Check nfs-ganesha server is up and running
    4:- Check csi-nfsplugin pods are up and running
    Args:
        storage_cluster_obj (obj): storage cluster object
        config_map_obj (obj): config map object
        pod_obj (obj): pod object
        namespace (str): namespace name
    Returns:
        str: nfs-ganesha pod name
    """
    nfs_spec_enable = '{"spec": {"nfs":{"enable": true}}}'
    rook_csi_config_enable = '{"data":{"ROOK_CSI_ENABLE_NFS": "true"}}'
    # Enable nfs feature for storage-cluster using patch command
    assert storage_cluster_obj.patch(
        resource_name="ocs-storagecluster",
        params=nfs_spec_enable,
        format_type="merge",
    ), "storagecluster.ocs.openshift.io/ocs-storagecluster not patched"
    # Enable ROOK_CSI_ENABLE_NFS via patch request
    assert config_map_obj.patch(
        resource_name="rook-ceph-operator-config",
        params=rook_csi_config_enable,
        format_type="merge",
    ), "configmap/rook-ceph-operator-config not patched"
    # Check nfs-ganesha server is up and running
    assert pod_obj.wait_for_resource(
        resource_count=1,
        condition=constants.STATUS_RUNNING,
        selector="app=rook-ceph-nfs",
        dont_allow_other_resources=True,
        timeout=60,
    )
    # Check csi-nfsplugin and csi-nfsplugin-provisioner pods are up and running
    assert pod_obj.wait_for_resource(
        condition=constants.STATUS_RUNNING,
        selector="app=csi-nfsplugin",
        dont_allow_other_resources=True,
        timeout=60,
    )
    assert pod_obj.wait_for_resource(
        condition=constants.STATUS_RUNNING,
        selector="app=csi-nfsplugin-provisioner",
        dont_allow_other_resources=True,
        timeout=60,
    )
    # Fetch the nfs-ganesha pod name
    pod_objs = pod.get_all_pods(namespace=namespace, selector=["rook-ceph-nfs"])
    log.info(f"pod objects---{pod_objs[0]}")
    nfs_ganesha_pod_name = pod_objs[0].name
    log.info(f"pod objects---{nfs_ganesha_pod_name}")
    return nfs_ganesha_pod_name