16  * @unit: The zfcp LUN/unit to register
22 void zfcp_unit_scsi_scan(struct zfcp_unit *unit)  in zfcp_unit_scsi_scan()  argument
24 	struct fc_rport *rport = unit->port->rport;  in zfcp_unit_scsi_scan()
27 	lun = scsilun_to_int((struct scsi_lun *) &unit->fcp_lun);  in zfcp_unit_scsi_scan()
36 	struct zfcp_unit *unit = container_of(work, struct zfcp_unit,  in zfcp_unit_scsi_scan_work()  local
39 	zfcp_unit_scsi_scan(unit);  in zfcp_unit_scsi_scan_work()
40 	put_device(&unit->dev);  in zfcp_unit_scsi_scan_work()
55 	struct zfcp_unit *unit;  in zfcp_unit_queue_scsi_scan()  local
58 	list_for_each_entry(unit, &port->unit_list, list) {  in zfcp_unit_queue_scsi_scan()
59 		get_device(&unit->dev);  in zfcp_unit_queue_scsi_scan()
61 				    &unit->scsi_work) <= 0)  in zfcp_unit_queue_scsi_scan()
62 			put_device(&unit->dev);  in zfcp_unit_queue_scsi_scan()
69 	struct zfcp_unit *unit;  in _zfcp_unit_find()  local
71 	list_for_each_entry(unit, &port->unit_list, list)  in _zfcp_unit_find()
72 		if (unit->fcp_lun == fcp_lun) {  in _zfcp_unit_find()
73 			get_device(&unit->dev);  in _zfcp_unit_find()
74 			return unit;  in _zfcp_unit_find()
82  * @port: zfcp_port where to look for the unit
93 	struct zfcp_unit *unit;  in zfcp_unit_find()  local
96 	unit = _zfcp_unit_find(port, fcp_lun);  in zfcp_unit_find()
98 	return unit;  in zfcp_unit_find()
107 	struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);  in zfcp_unit_release()  local
109 	atomic_dec(&unit->port->units);  in zfcp_unit_release()
110 	kfree(unit);  in zfcp_unit_release()
114  * zfcp_unit_add - add unit to unit list of a port.
115  * @port: pointer to port where unit is added
116  * @fcp_lun: FCP LUN of unit to be added
119  * Sets up some unit internal structures and creates sysfs entry.
123 	struct zfcp_unit *unit;  in zfcp_unit_add()  local
133 	unit = zfcp_unit_find(port, fcp_lun);  in zfcp_unit_add()
134 	if (unit) {  in zfcp_unit_add()
135 		put_device(&unit->dev);  in zfcp_unit_add()
140 	unit = kzalloc(sizeof(struct zfcp_unit), GFP_KERNEL);  in zfcp_unit_add()
141 	if (!unit) {  in zfcp_unit_add()
146 	unit->port = port;  in zfcp_unit_add()
147 	unit->fcp_lun = fcp_lun;  in zfcp_unit_add()
148 	unit->dev.parent = &port->dev;  in zfcp_unit_add()
149 	unit->dev.release = zfcp_unit_release;  in zfcp_unit_add()
150 	unit->dev.groups = zfcp_unit_attr_groups;  in zfcp_unit_add()
151 	INIT_WORK(&unit->scsi_work, zfcp_unit_scsi_scan_work);  in zfcp_unit_add()
153 	if (dev_set_name(&unit->dev, "0x%016llx",  in zfcp_unit_add()
155 		kfree(unit);  in zfcp_unit_add()
160 	if (device_register(&unit->dev)) {  in zfcp_unit_add()
161 		put_device(&unit->dev);  in zfcp_unit_add()
169 	list_add_tail(&unit->list, &port->unit_list);  in zfcp_unit_add()
177 	zfcp_unit_scsi_scan(unit);  in zfcp_unit_add()
187  * @unit: The zfcp_unit where to get the SCSI device for
195 struct scsi_device *zfcp_unit_sdev(struct zfcp_unit *unit)  in zfcp_unit_sdev()  argument
201 	lun = scsilun_to_int((struct scsi_lun *) &unit->fcp_lun);  in zfcp_unit_sdev()
202 	port = unit->port;  in zfcp_unit_sdev()
209  * @unit: The unit to lookup the SCSI device for
214 unsigned int zfcp_unit_sdev_status(struct zfcp_unit *unit)  in zfcp_unit_sdev_status()  argument
220 	sdev = zfcp_unit_sdev(unit);  in zfcp_unit_sdev_status()
232  * @port: The port where to remove the unit from the configuration
233  * @fcp_lun: The 64 bit LUN of the unit to remove
235  * Returns: -EINVAL if a unit with the specified LUN does not exist,
240 	struct zfcp_unit *unit;  in zfcp_unit_remove()  local
244 	unit = _zfcp_unit_find(port, fcp_lun);  in zfcp_unit_remove()
245 	if (unit)  in zfcp_unit_remove()
246 		list_del(&unit->list);  in zfcp_unit_remove()
249 	if (!unit)  in zfcp_unit_remove()
252 	sdev = zfcp_unit_sdev(unit);  in zfcp_unit_remove()
258 	device_unregister(&unit->dev);  in zfcp_unit_remove()
260 	put_device(&unit->dev); /* undo _zfcp_unit_find() */  in zfcp_unit_remove()