int do_subchannel_work_virtual(SubchDev *sch) { SCSW *s = &sch->curr_status.scsw; if (s->ctrl & SCSW_FCTL_CLEAR_FUNC) { sch_handle_clear_func(sch); } else if (s->ctrl & SCSW_FCTL_HALT_FUNC) { sch_handle_halt_func(sch); } else if (s->ctrl & SCSW_FCTL_START_FUNC) { /* Triggered by both ssch and rsch. */ sch_handle_start_func_virtual(sch); } css_inject_io_interrupt(sch); return 0; }