eeh_pe_tree_insert
int eeh_pe_tree_insert(struct eeh_dev *edev, struct eeh_pe *new_pe_parent);
ret = eeh_pe_tree_insert(edev, upstream_pe);
eeh_pe_tree_insert(edev, parent);
eeh_pe_tree_insert(edev, physfn_pe); /* Add as VF PE type */