ocs_hw_set_persistent_topology
ocs_hw_rtn_e ocs_hw_set_persistent_topology(ocs_hw_t *hw, uint32_t topology, uint32_t opts);
hw_rc = ocs_hw_set_persistent_topology(&ocs->hw, topo, OCS_CMD_NOWAIT);
ocs_hw_set_persistent_topology(&ocs->hw, topology, OCS_CMD_POLL);