18 static int fsm_io_helper(struct vfio_ccw_private *private)  in fsm_io_helper()  argument
27 	sch = private->sch;  in fsm_io_helper()
31 	orb = cp_get_orb(&private->cp, (u32)(addr_t)sch, sch->lpm);  in fsm_io_helper()
52 		private->state = VFIO_CCW_STATE_CP_PENDING;  in fsm_io_helper()
80 static int fsm_do_halt(struct vfio_ccw_private *private)  in fsm_do_halt()  argument
87 	sch = private->sch;  in fsm_do_halt()
121 static int fsm_do_clear(struct vfio_ccw_private *private)  in fsm_do_clear()  argument
128 	sch = private->sch;  in fsm_do_clear()
159 static void fsm_notoper(struct vfio_ccw_private *private,  in fsm_notoper()  argument
162 	struct subchannel *sch = private->sch;  in fsm_notoper()
172 	private->state = VFIO_CCW_STATE_NOT_OPER;  in fsm_notoper()
178 static void fsm_nop(struct vfio_ccw_private *private,  in fsm_nop()  argument
183 static void fsm_io_error(struct vfio_ccw_private *private,  in fsm_io_error()  argument
186 	pr_err("vfio-ccw: FSM: I/O request from state:%d\n", private->state);  in fsm_io_error()
187 	private->io_region->ret_code = -EIO;  in fsm_io_error()
190 static void fsm_io_busy(struct vfio_ccw_private *private,  in fsm_io_busy()  argument
193 	private->io_region->ret_code = -EBUSY;  in fsm_io_busy()
196 static void fsm_io_retry(struct vfio_ccw_private *private,  in fsm_io_retry()  argument
199 	private->io_region->ret_code = -EAGAIN;  in fsm_io_retry()
202 static void fsm_async_error(struct vfio_ccw_private *private,  in fsm_async_error()  argument
205 	struct ccw_cmd_region *cmd_region = private->cmd_region;  in fsm_async_error()
210 	       "<unknown>", private->state);  in fsm_async_error()
214 static void fsm_async_retry(struct vfio_ccw_private *private,  in fsm_async_retry()  argument
217 	private->cmd_region->ret_code = -EAGAIN;  in fsm_async_retry()
220 static void fsm_disabled_irq(struct vfio_ccw_private *private,  in fsm_disabled_irq()  argument
223 	struct subchannel *sch = private->sch;  in fsm_disabled_irq()
239 static void fsm_io_request(struct vfio_ccw_private *private,  in fsm_io_request()  argument
243 	union scsw *scsw = &private->scsw;  in fsm_io_request()
244 	struct ccw_io_region *io_region = private->io_region;  in fsm_io_request()
245 	struct mdev_device *mdev = private->mdev;  in fsm_io_request()
247 	struct subchannel_id schid = get_schid(private);  in fsm_io_request()
249 	private->state = VFIO_CCW_STATE_CP_PROCESSING;  in fsm_io_request()
265 		io_region->ret_code = cp_init(&private->cp, mdev_dev(mdev),  in fsm_io_request()
277 		io_region->ret_code = cp_prefetch(&private->cp);  in fsm_io_request()
285 			cp_free(&private->cp);  in fsm_io_request()
290 		io_region->ret_code = fsm_io_helper(private);  in fsm_io_request()
298 			cp_free(&private->cp);  in fsm_io_request()
328 static void fsm_async_request(struct vfio_ccw_private *private,  in fsm_async_request()  argument
331 	struct ccw_cmd_region *cmd_region = private->cmd_region;  in fsm_async_request()
335 		cmd_region->ret_code = fsm_do_halt(private);  in fsm_async_request()
338 		cmd_region->ret_code = fsm_do_clear(private);  in fsm_async_request()
345 	trace_vfio_ccw_fsm_async_request(get_schid(private),  in fsm_async_request()
353 static void fsm_irq(struct vfio_ccw_private *private,  in fsm_irq()  argument
359 	VFIO_CCW_TRACE_EVENT(6, dev_name(&private->sch->dev));  in fsm_irq()
361 	memcpy(&private->irb, irb, sizeof(*irb));  in fsm_irq()
363 	queue_work(vfio_ccw_work_q, &private->io_work);  in fsm_irq()
365 	if (private->completion)  in fsm_irq()
366 		complete(private->completion);  in fsm_irq()