70 xenbus_watch_path(struct xenbus_device *dev, const char *path,  in xenbus_watch_path()  argument
85 		xenbus_dev_fatal(dev, err, "adding watch on %s", path);  in xenbus_watch_path()
93 xenbus_watch_path2(struct xenbus_device *dev, const char *path,  in xenbus_watch_path2()  argument
106 	err = xenbus_watch_path(dev, state, watch, callback);  in xenbus_watch_path2()
124 xenbus_switch_state(struct xenbus_device *dev, xenbus_transaction_t xbt,  in xenbus_switch_state()  argument
130 	err = xenbus_scanf(xbt, dev->nodename, "state", "%d", &current_state);  in xenbus_switch_state()
141 		err = xenbus_printf(xbt, dev->nodename, "state", "%d", state);  in xenbus_switch_state()
143 			xenbus_dev_fatal(dev, err, "writing new state");  in xenbus_switch_state()
155 error_path(struct xenbus_device *dev)  in error_path()  argument
159 	path_buffer = kmem_alloc(strlen("error/") + strlen(dev->nodename) +  in error_path()
163 	(void) strcpy(path_buffer + strlen("error/"), dev->nodename);  in error_path()
169 common_dev_error(struct xenbus_device *dev, int err, const char *fmt,  in common_dev_error()  argument
184 	dev->has_error = 1;  in common_dev_error()
186 	path_buffer = error_path(dev);  in common_dev_error()
190 		    dev->nodename, printf_buffer);  in common_dev_error()
196 		    dev->nodename, printf_buffer);  in common_dev_error()
209 xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt, ...)  in xenbus_dev_error()  argument
214 	common_dev_error(dev, err, fmt, ap);  in xenbus_dev_error()
220 xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt, ...)  in xenbus_dev_fatal()  argument
225 	common_dev_error(dev, err, fmt, ap);  in xenbus_dev_fatal()
228 	(void) xenbus_switch_state(dev, XBT_NULL, XenbusStateClosing);  in xenbus_dev_fatal()
233 xenbus_dev_ok(struct xenbus_device *dev)  in xenbus_dev_ok()  argument
235 	if (dev->has_error) {  in xenbus_dev_ok()
236 		if (xenbus_rm(0, dev->nodename, "error") != 0)  in xenbus_dev_ok()
238 			    dev->nodename);  in xenbus_dev_ok()
240 			dev->has_error = 0;  in xenbus_dev_ok()
245 xenbus_grant_ring(struct xenbus_device *dev, unsigned long ring_mfn)  in xenbus_grant_ring()  argument
247 	int err = gnttab_grant_foreign_access(dev->otherend_id, ring_mfn, 0);  in xenbus_grant_ring()
249 		xenbus_dev_fatal(dev, err, "granting access to ring page");  in xenbus_grant_ring()
255 xenbus_alloc_evtchn(struct xenbus_device *dev, int *port)  in xenbus_alloc_evtchn()  argument
259 	err = xen_alloc_unbound_evtchn(dev->otherend_id, port);  in xenbus_alloc_evtchn()
261 		xenbus_dev_fatal(dev, err, "allocating event channel");  in xenbus_alloc_evtchn()