41 static u16 ccwreq_next_path(struct ccw_device *cdev)  in ccwreq_next_path()  argument
43 	struct ccw_request *req = &cdev->private->req;  in ccwreq_next_path()
58 static void ccwreq_stop(struct ccw_device *cdev, int rc)  in ccwreq_stop()  argument
60 	struct ccw_request *req = &cdev->private->req;  in ccwreq_stop()
65 	ccw_device_set_timeout(cdev, 0);  in ccwreq_stop()
66 	memset(&cdev->private->dma_area->irb, 0, sizeof(struct irb));  in ccwreq_stop()
69 	req->callback(cdev, req->data, rc);  in ccwreq_stop()
75 static void ccwreq_do(struct ccw_device *cdev)  in ccwreq_do()  argument
77 	struct ccw_request *req = &cdev->private->req;  in ccwreq_do()
78 	struct subchannel *sch = to_subchannel(cdev->dev.parent);  in ccwreq_do()
85 			ccwreq_next_path(cdev);  in ccwreq_do()
89 		memset(&cdev->private->dma_area->irb, 0, sizeof(struct irb));  in ccwreq_do()
93 			ccw_device_set_timeout(cdev, req->timeout);  in ccwreq_do()
102 			ccwreq_next_path(cdev);  in ccwreq_do()
111 	ccwreq_stop(cdev, rc);  in ccwreq_do()
120 void ccw_request_start(struct ccw_device *cdev)  in ccw_request_start()  argument
122 	struct ccw_request *req = &cdev->private->req;  in ccw_request_start()
137 	ccwreq_do(cdev);  in ccw_request_start()
141 	ccwreq_stop(cdev, -EACCES);  in ccw_request_start()
151 int ccw_request_cancel(struct ccw_device *cdev)  in ccw_request_cancel()  argument
153 	struct subchannel *sch = to_subchannel(cdev->dev.parent);  in ccw_request_cancel()
154 	struct ccw_request *req = &cdev->private->req;  in ccw_request_cancel()
162 		ccwreq_stop(cdev, rc);  in ccw_request_cancel()
170 static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb)  in ccwreq_status()  argument
172 	struct irb *irb = &cdev->private->dma_area->irb;  in ccwreq_status()
177 	if (ccw_device_accumulate_and_sense(cdev, lcirb))  in ccwreq_status()
188 		CIO_HEX_EVENT(2, &cdev->private->dev_id,  in ccwreq_status()
190 		CIO_HEX_EVENT(2, &cdev->private->dma_area->irb.ecw,  in ccwreq_status()
196 		if (cdev->drv && cdev->drv->uc_handler) {  in ccwreq_status()
197 			todo = cdev->drv->uc_handler(cdev, lcirb);  in ccwreq_status()
232 static void ccwreq_log_status(struct ccw_device *cdev, enum io_status status)  in ccwreq_log_status()  argument
234 	struct ccw_request *req = &cdev->private->req;  in ccwreq_log_status()
241 	data.dev_id	= cdev->private->dev_id;  in ccwreq_log_status()
255 void ccw_request_handler(struct ccw_device *cdev)  in ccw_request_handler()  argument
258 	struct ccw_request *req = &cdev->private->req;  in ccw_request_handler()
263 	status = ccwreq_status(cdev, irb);  in ccw_request_handler()
265 		status = req->filter(cdev, req->data, irb, status);  in ccw_request_handler()
267 		ccw_device_set_timeout(cdev, 0);  in ccw_request_handler()
269 		ccwreq_log_status(cdev, status);  in ccw_request_handler()
292 	switch (req->check(cdev, req->data)) {  in ccw_request_handler()
303 	ccwreq_stop(cdev, 0);  in ccw_request_handler()
308 	if (!ccwreq_next_path(cdev)) {  in ccw_request_handler()
314 	ccwreq_do(cdev);  in ccw_request_handler()
317 	ccwreq_stop(cdev, rc);  in ccw_request_handler()
327 void ccw_request_timeout(struct ccw_device *cdev)  in ccw_request_timeout()  argument
329 	struct subchannel *sch = to_subchannel(cdev->dev.parent);  in ccw_request_timeout()
330 	struct ccw_request *req = &cdev->private->req;  in ccw_request_timeout()
339 				dev_name(&cdev->dev), req->timeout / HZ,  in ccw_request_timeout()
346 	if (!ccwreq_next_path(cdev)) {  in ccw_request_timeout()
356 	ccwreq_stop(cdev, rc);  in ccw_request_timeout()
365 void ccw_request_notoper(struct ccw_device *cdev)  in ccw_request_notoper()  argument
367 	ccwreq_stop(cdev, -ENODEV);  in ccw_request_notoper()