diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
-rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 122 |
1 files changed, 2 insertions, 120 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 5c4b874591ea..044fb22718d2 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c | |||
@@ -56,7 +56,6 @@ static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun) | |||
56 | struct ccw_device *cdev; | 56 | struct ccw_device *cdev; |
57 | struct zfcp_adapter *adapter; | 57 | struct zfcp_adapter *adapter; |
58 | struct zfcp_port *port; | 58 | struct zfcp_port *port; |
59 | struct zfcp_unit *unit; | ||
60 | 59 | ||
61 | cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid); | 60 | cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid); |
62 | if (!cdev) | 61 | if (!cdev) |
@@ -72,18 +71,11 @@ static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun) | |||
72 | port = zfcp_get_port_by_wwpn(adapter, wwpn); | 71 | port = zfcp_get_port_by_wwpn(adapter, wwpn); |
73 | if (!port) | 72 | if (!port) |
74 | goto out_port; | 73 | goto out_port; |
75 | |||
76 | flush_work(&port->rport_work); | 74 | flush_work(&port->rport_work); |
77 | unit = zfcp_unit_enqueue(port, lun); | ||
78 | if (IS_ERR(unit)) | ||
79 | goto out_unit; | ||
80 | |||
81 | zfcp_erp_unit_reopen(unit, 0, "auidc_1", NULL); | ||
82 | zfcp_erp_wait(adapter); | ||
83 | zfcp_scsi_scan(unit); | ||
84 | 75 | ||
85 | out_unit: | 76 | zfcp_unit_add(port, lun); |
86 | put_device(&port->dev); | 77 | put_device(&port->dev); |
78 | |||
87 | out_port: | 79 | out_port: |
88 | zfcp_ccw_adapter_put(adapter); | 80 | zfcp_ccw_adapter_put(adapter); |
89 | out_ccw_device: | 81 | out_ccw_device: |
@@ -215,30 +207,6 @@ static void __exit zfcp_module_exit(void) | |||
215 | module_exit(zfcp_module_exit); | 207 | module_exit(zfcp_module_exit); |
216 | 208 | ||
217 | /** | 209 | /** |
218 | * zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN | ||
219 | * @port: pointer to port to search for unit | ||
220 | * @fcp_lun: FCP LUN to search for | ||
221 | * | ||
222 | * Returns: pointer to zfcp_unit or NULL | ||
223 | */ | ||
224 | struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port, u64 fcp_lun) | ||
225 | { | ||
226 | unsigned long flags; | ||
227 | struct zfcp_unit *unit; | ||
228 | |||
229 | read_lock_irqsave(&port->unit_list_lock, flags); | ||
230 | list_for_each_entry(unit, &port->unit_list, list) | ||
231 | if (unit->fcp_lun == fcp_lun) { | ||
232 | if (!get_device(&unit->dev)) | ||
233 | unit = NULL; | ||
234 | read_unlock_irqrestore(&port->unit_list_lock, flags); | ||
235 | return unit; | ||
236 | } | ||
237 | read_unlock_irqrestore(&port->unit_list_lock, flags); | ||
238 | return NULL; | ||
239 | } | ||
240 | |||
241 | /** | ||
242 | * zfcp_get_port_by_wwpn - find port in port list of adapter by wwpn | 210 | * zfcp_get_port_by_wwpn - find port in port list of adapter by wwpn |
243 | * @adapter: pointer to adapter to search for port | 211 | * @adapter: pointer to adapter to search for port |
244 | * @wwpn: wwpn to search for | 212 | * @wwpn: wwpn to search for |
@@ -263,92 +231,6 @@ struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter, | |||
263 | return NULL; | 231 | return NULL; |
264 | } | 232 | } |
265 | 233 | ||
266 | /** | ||
267 | * zfcp_unit_release - dequeue unit | ||
268 | * @dev: pointer to device | ||
269 | * | ||
270 | * waits until all work is done on unit and removes it then from the unit->list | ||
271 | * of the associated port. | ||
272 | */ | ||
273 | static void zfcp_unit_release(struct device *dev) | ||
274 | { | ||
275 | struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev); | ||
276 | |||
277 | put_device(&unit->port->dev); | ||
278 | kfree(unit); | ||
279 | } | ||
280 | |||
281 | /** | ||
282 | * zfcp_unit_enqueue - enqueue unit to unit list of a port. | ||
283 | * @port: pointer to port where unit is added | ||
284 | * @fcp_lun: FCP LUN of unit to be enqueued | ||
285 | * Returns: pointer to enqueued unit on success, ERR_PTR on error | ||
286 | * | ||
287 | * Sets up some unit internal structures and creates sysfs entry. | ||
288 | */ | ||
289 | struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun) | ||
290 | { | ||
291 | struct zfcp_unit *unit; | ||
292 | int retval = -ENOMEM; | ||
293 | |||
294 | get_device(&port->dev); | ||
295 | |||
296 | unit = zfcp_get_unit_by_lun(port, fcp_lun); | ||
297 | if (unit) { | ||
298 | put_device(&unit->dev); | ||
299 | retval = -EEXIST; | ||
300 | goto err_out; | ||
301 | } | ||
302 | |||
303 | unit = kzalloc(sizeof(struct zfcp_unit), GFP_KERNEL); | ||
304 | if (!unit) | ||
305 | goto err_out; | ||
306 | |||
307 | unit->port = port; | ||
308 | unit->fcp_lun = fcp_lun; | ||
309 | unit->dev.parent = &port->dev; | ||
310 | unit->dev.release = zfcp_unit_release; | ||
311 | |||
312 | if (dev_set_name(&unit->dev, "0x%016llx", | ||
313 | (unsigned long long) fcp_lun)) { | ||
314 | kfree(unit); | ||
315 | goto err_out; | ||
316 | } | ||
317 | retval = -EINVAL; | ||
318 | |||
319 | INIT_WORK(&unit->scsi_work, zfcp_scsi_scan_work); | ||
320 | |||
321 | spin_lock_init(&unit->latencies.lock); | ||
322 | unit->latencies.write.channel.min = 0xFFFFFFFF; | ||
323 | unit->latencies.write.fabric.min = 0xFFFFFFFF; | ||
324 | unit->latencies.read.channel.min = 0xFFFFFFFF; | ||
325 | unit->latencies.read.fabric.min = 0xFFFFFFFF; | ||
326 | unit->latencies.cmd.channel.min = 0xFFFFFFFF; | ||
327 | unit->latencies.cmd.fabric.min = 0xFFFFFFFF; | ||
328 | |||
329 | if (device_register(&unit->dev)) { | ||
330 | put_device(&unit->dev); | ||
331 | goto err_out; | ||
332 | } | ||
333 | |||
334 | if (sysfs_create_group(&unit->dev.kobj, &zfcp_sysfs_unit_attrs)) | ||
335 | goto err_out_put; | ||
336 | |||
337 | write_lock_irq(&port->unit_list_lock); | ||
338 | list_add_tail(&unit->list, &port->unit_list); | ||
339 | write_unlock_irq(&port->unit_list_lock); | ||
340 | |||
341 | atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &unit->status); | ||
342 | |||
343 | return unit; | ||
344 | |||
345 | err_out_put: | ||
346 | device_unregister(&unit->dev); | ||
347 | err_out: | ||
348 | put_device(&port->dev); | ||
349 | return ERR_PTR(retval); | ||
350 | } | ||
351 | |||
352 | static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter) | 234 | static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter) |
353 | { | 235 | { |
354 | adapter->pool.erp_req = | 236 | adapter->pool.erp_req = |