40 static u16 ccwreq_next_path(struct ccw_device *cdev)  in ccwreq_next_path()  argument
42 	struct ccw_request *req = &cdev->private->req;  in ccwreq_next_path()
57 static void ccwreq_stop(struct ccw_device *cdev, int rc)  in ccwreq_stop()  argument
59 	struct ccw_request *req = &cdev->private->req;  in ccwreq_stop()
64 	ccw_device_set_timeout(cdev, 0);  in ccwreq_stop()
65 	memset(&cdev->private->irb, 0, sizeof(struct irb));  in ccwreq_stop()
68 	req->callback(cdev, req->data, rc);  in ccwreq_stop()
74 static void ccwreq_do(struct ccw_device *cdev)  in ccwreq_do()  argument
76 	struct ccw_request *req = &cdev->private->req;  in ccwreq_do()
77 	struct subchannel *sch = to_subchannel(cdev->dev.parent);  in ccwreq_do()
84 			ccwreq_next_path(cdev);  in ccwreq_do()
88 		memset(&cdev->private->irb, 0, sizeof(struct irb));  in ccwreq_do()
92 			ccw_device_set_timeout(cdev, req->timeout);  in ccwreq_do()
101 			ccwreq_next_path(cdev);  in ccwreq_do()
110 	ccwreq_stop(cdev, rc);  in ccwreq_do()
119 void ccw_request_start(struct ccw_device *cdev)  in ccw_request_start()  argument
121 	struct ccw_request *req = &cdev->private->req;  in ccw_request_start()
136 	ccwreq_do(cdev);  in ccw_request_start()
140 	ccwreq_stop(cdev, -EACCES);  in ccw_request_start()
150 int ccw_request_cancel(struct ccw_device *cdev)  in ccw_request_cancel()  argument
152 	struct subchannel *sch = to_subchannel(cdev->dev.parent);  in ccw_request_cancel()
153 	struct ccw_request *req = &cdev->private->req;  in ccw_request_cancel()
161 		ccwreq_stop(cdev, rc);  in ccw_request_cancel()
169 static enum io_status ccwreq_status(struct ccw_device *cdev, struct irb *lcirb)  in ccwreq_status()  argument
171 	struct irb *irb = &cdev->private->irb;  in ccwreq_status()
176 	if (ccw_device_accumulate_and_sense(cdev, lcirb))  in ccwreq_status()
187 		CIO_HEX_EVENT(2, &cdev->private->dev_id,  in ccwreq_status()
189 		CIO_HEX_EVENT(2, &cdev->private->irb.ecw, SENSE_MAX_COUNT);  in ccwreq_status()
194 		if (cdev->drv && cdev->drv->uc_handler) {  in ccwreq_status()
195 			todo = cdev->drv->uc_handler(cdev, lcirb);  in ccwreq_status()
230 static void ccwreq_log_status(struct ccw_device *cdev, enum io_status status)  in ccwreq_log_status()  argument
232 	struct ccw_request *req = &cdev->private->req;  in ccwreq_log_status()
239 	data.dev_id	= cdev->private->dev_id;  in ccwreq_log_status()
253 void ccw_request_handler(struct ccw_device *cdev)  in ccw_request_handler()  argument
256 	struct ccw_request *req = &cdev->private->req;  in ccw_request_handler()
261 	status = ccwreq_status(cdev, irb);  in ccw_request_handler()
263 		status = req->filter(cdev, req->data, irb, status);  in ccw_request_handler()
265 		ccw_device_set_timeout(cdev, 0);  in ccw_request_handler()
267 		ccwreq_log_status(cdev, status);  in ccw_request_handler()
290 	switch (req->check(cdev, req->data)) {  in ccw_request_handler()
301 	ccwreq_stop(cdev, 0);  in ccw_request_handler()
306 	if (!ccwreq_next_path(cdev)) {  in ccw_request_handler()
312 	ccwreq_do(cdev);  in ccw_request_handler()
315 	ccwreq_stop(cdev, rc);  in ccw_request_handler()
325 void ccw_request_timeout(struct ccw_device *cdev)  in ccw_request_timeout()  argument
327 	struct subchannel *sch = to_subchannel(cdev->dev.parent);  in ccw_request_timeout()
328 	struct ccw_request *req = &cdev->private->req;  in ccw_request_timeout()
338 				   dev_name(&cdev->dev), req->timeout / HZ,  in ccw_request_timeout()
345 	if (!ccwreq_next_path(cdev)) {  in ccw_request_timeout()
355 	ccwreq_stop(cdev, rc);  in ccw_request_timeout()
364 void ccw_request_notoper(struct ccw_device *cdev)  in ccw_request_notoper()  argument
366 	ccwreq_stop(cdev, -ENODEV);  in ccw_request_notoper()