58 	struct zfcp_adapter *adapter;  in zfcp_init_device_configure()  local
68 	adapter = zfcp_ccw_adapter_by_cdev(cdev);  in zfcp_init_device_configure()
69 	if (!adapter)  in zfcp_init_device_configure()
72 	port = zfcp_get_port_by_wwpn(adapter, wwpn);  in zfcp_init_device_configure()
81 	zfcp_ccw_adapter_put(adapter);  in zfcp_init_device_configure()
187  * zfcp_get_port_by_wwpn - find port in port list of adapter by wwpn
188  * @adapter: pointer to adapter to search for port
193 struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter,  in zfcp_get_port_by_wwpn()  argument
199 	read_lock_irqsave(&adapter->port_list_lock, flags);  in zfcp_get_port_by_wwpn()
200 	list_for_each_entry(port, &adapter->port_list, list)  in zfcp_get_port_by_wwpn()
204 			read_unlock_irqrestore(&adapter->port_list_lock, flags);  in zfcp_get_port_by_wwpn()
207 	read_unlock_irqrestore(&adapter->port_list_lock, flags);  in zfcp_get_port_by_wwpn()
211 static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)  in zfcp_allocate_low_mem_buffers()  argument
213 	adapter->pool.erp_req =  in zfcp_allocate_low_mem_buffers()
215 	if (!adapter->pool.erp_req)  in zfcp_allocate_low_mem_buffers()
218 	adapter->pool.gid_pn_req =  in zfcp_allocate_low_mem_buffers()
220 	if (!adapter->pool.gid_pn_req)  in zfcp_allocate_low_mem_buffers()
223 	adapter->pool.scsi_req =  in zfcp_allocate_low_mem_buffers()
225 	if (!adapter->pool.scsi_req)  in zfcp_allocate_low_mem_buffers()
228 	adapter->pool.scsi_abort =  in zfcp_allocate_low_mem_buffers()
230 	if (!adapter->pool.scsi_abort)  in zfcp_allocate_low_mem_buffers()
233 	adapter->pool.status_read_req =  in zfcp_allocate_low_mem_buffers()
236 	if (!adapter->pool.status_read_req)  in zfcp_allocate_low_mem_buffers()
239 	adapter->pool.qtcb_pool =  in zfcp_allocate_low_mem_buffers()
241 	if (!adapter->pool.qtcb_pool)  in zfcp_allocate_low_mem_buffers()
245 	adapter->pool.sr_data =  in zfcp_allocate_low_mem_buffers()
247 	if (!adapter->pool.sr_data)  in zfcp_allocate_low_mem_buffers()
250 	adapter->pool.gid_pn =  in zfcp_allocate_low_mem_buffers()
252 	if (!adapter->pool.gid_pn)  in zfcp_allocate_low_mem_buffers()
258 static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter)  in zfcp_free_low_mem_buffers()  argument
260 	if (adapter->pool.erp_req)  in zfcp_free_low_mem_buffers()
261 		mempool_destroy(adapter->pool.erp_req);  in zfcp_free_low_mem_buffers()
262 	if (adapter->pool.scsi_req)  in zfcp_free_low_mem_buffers()
263 		mempool_destroy(adapter->pool.scsi_req);  in zfcp_free_low_mem_buffers()
264 	if (adapter->pool.scsi_abort)  in zfcp_free_low_mem_buffers()
265 		mempool_destroy(adapter->pool.scsi_abort);  in zfcp_free_low_mem_buffers()
266 	if (adapter->pool.qtcb_pool)  in zfcp_free_low_mem_buffers()
267 		mempool_destroy(adapter->pool.qtcb_pool);  in zfcp_free_low_mem_buffers()
268 	if (adapter->pool.status_read_req)  in zfcp_free_low_mem_buffers()
269 		mempool_destroy(adapter->pool.status_read_req);  in zfcp_free_low_mem_buffers()
270 	if (adapter->pool.sr_data)  in zfcp_free_low_mem_buffers()
271 		mempool_destroy(adapter->pool.sr_data);  in zfcp_free_low_mem_buffers()
272 	if (adapter->pool.gid_pn)  in zfcp_free_low_mem_buffers()
273 		mempool_destroy(adapter->pool.gid_pn);  in zfcp_free_low_mem_buffers()
278  * @adapter: ptr to struct zfcp_adapter for which the buffers should be refilled
285 int zfcp_status_read_refill(struct zfcp_adapter *adapter)  in zfcp_status_read_refill()  argument
287 	while (atomic_read(&adapter->stat_miss) > 0)  in zfcp_status_read_refill()
288 		if (zfcp_fsf_status_read(adapter->qdio)) {  in zfcp_status_read_refill()
289 			if (atomic_read(&adapter->stat_miss) >=  in zfcp_status_read_refill()
290 			    adapter->stat_read_buf_num) {  in zfcp_status_read_refill()
291 				zfcp_erp_adapter_reopen(adapter, 0, "axsref1");  in zfcp_status_read_refill()
296 			atomic_dec(&adapter->stat_miss);  in zfcp_status_read_refill()
308 	struct zfcp_adapter *adapter =  in zfcp_print_sl()  local
312 		   dev_name(&adapter->ccw_device->dev),  in zfcp_print_sl()
313 		   adapter->fsf_lic_version);  in zfcp_print_sl()
316 static int zfcp_setup_adapter_work_queue(struct zfcp_adapter *adapter)  in zfcp_setup_adapter_work_queue()  argument
321 		 dev_name(&adapter->ccw_device->dev));  in zfcp_setup_adapter_work_queue()
322 	adapter->work_queue = create_singlethread_workqueue(name);  in zfcp_setup_adapter_work_queue()
324 	if (adapter->work_queue)  in zfcp_setup_adapter_work_queue()
329 static void zfcp_destroy_adapter_work_queue(struct zfcp_adapter *adapter)  in zfcp_destroy_adapter_work_queue()  argument
331 	if (adapter->work_queue)  in zfcp_destroy_adapter_work_queue()
332 		destroy_workqueue(adapter->work_queue);  in zfcp_destroy_adapter_work_queue()
333 	adapter->work_queue = NULL;  in zfcp_destroy_adapter_work_queue()
338  * zfcp_adapter_enqueue - enqueue a new adapter to the list
342  * Enqueues an adapter at the end of the adapter list in the driver data.
343  * All adapter internal structures are set up.
348 	struct zfcp_adapter *adapter;  in zfcp_adapter_enqueue()  local
353 	adapter = kzalloc(sizeof(struct zfcp_adapter), GFP_KERNEL);  in zfcp_adapter_enqueue()
354 	if (!adapter) {  in zfcp_adapter_enqueue()
359 	kref_init(&adapter->ref);  in zfcp_adapter_enqueue()
362 	adapter->ccw_device = ccw_device;  in zfcp_adapter_enqueue()
364 	INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler);  in zfcp_adapter_enqueue()
365 	INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports);  in zfcp_adapter_enqueue()
366 	INIT_WORK(&adapter->ns_up_work, zfcp_fc_sym_name_update);  in zfcp_adapter_enqueue()
368 	if (zfcp_qdio_setup(adapter))  in zfcp_adapter_enqueue()
371 	if (zfcp_allocate_low_mem_buffers(adapter))  in zfcp_adapter_enqueue()
374 	adapter->req_list = zfcp_reqlist_alloc();  in zfcp_adapter_enqueue()
375 	if (!adapter->req_list)  in zfcp_adapter_enqueue()
378 	if (zfcp_dbf_adapter_register(adapter))  in zfcp_adapter_enqueue()
381 	if (zfcp_setup_adapter_work_queue(adapter))  in zfcp_adapter_enqueue()
384 	if (zfcp_fc_gs_setup(adapter))  in zfcp_adapter_enqueue()
387 	rwlock_init(&adapter->port_list_lock);  in zfcp_adapter_enqueue()
388 	INIT_LIST_HEAD(&adapter->port_list);  in zfcp_adapter_enqueue()
390 	INIT_LIST_HEAD(&adapter->events.list);  in zfcp_adapter_enqueue()
391 	INIT_WORK(&adapter->events.work, zfcp_fc_post_event);  in zfcp_adapter_enqueue()
392 	spin_lock_init(&adapter->events.list_lock);  in zfcp_adapter_enqueue()
394 	init_waitqueue_head(&adapter->erp_ready_wq);  in zfcp_adapter_enqueue()
395 	init_waitqueue_head(&adapter->erp_done_wqh);  in zfcp_adapter_enqueue()
397 	INIT_LIST_HEAD(&adapter->erp_ready_head);  in zfcp_adapter_enqueue()
398 	INIT_LIST_HEAD(&adapter->erp_running_head);  in zfcp_adapter_enqueue()
400 	rwlock_init(&adapter->erp_lock);  in zfcp_adapter_enqueue()
401 	rwlock_init(&adapter->abort_lock);  in zfcp_adapter_enqueue()
403 	if (zfcp_erp_thread_setup(adapter))  in zfcp_adapter_enqueue()
406 	adapter->service_level.seq_print = zfcp_print_sl;  in zfcp_adapter_enqueue()
408 	dev_set_drvdata(&ccw_device->dev, adapter);  in zfcp_adapter_enqueue()
415 	adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN;  in zfcp_adapter_enqueue()
416 	adapter->ccw_device->dev.dma_parms = &adapter->dma_parms;  in zfcp_adapter_enqueue()
418 	if (!zfcp_scsi_adapter_register(adapter))  in zfcp_adapter_enqueue()
419 		return adapter;  in zfcp_adapter_enqueue()
422 	zfcp_adapter_unregister(adapter);  in zfcp_adapter_enqueue()
426 void zfcp_adapter_unregister(struct zfcp_adapter *adapter)  in zfcp_adapter_unregister()  argument
428 	struct ccw_device *cdev = adapter->ccw_device;  in zfcp_adapter_unregister()
430 	cancel_work_sync(&adapter->scan_work);  in zfcp_adapter_unregister()
431 	cancel_work_sync(&adapter->stat_work);  in zfcp_adapter_unregister()
432 	cancel_work_sync(&adapter->ns_up_work);  in zfcp_adapter_unregister()
433 	zfcp_destroy_adapter_work_queue(adapter);  in zfcp_adapter_unregister()
435 	zfcp_fc_wka_ports_force_offline(adapter->gs);  in zfcp_adapter_unregister()
436 	zfcp_scsi_adapter_unregister(adapter);  in zfcp_adapter_unregister()
439 	zfcp_erp_thread_kill(adapter);  in zfcp_adapter_unregister()
440 	zfcp_dbf_adapter_unregister(adapter);  in zfcp_adapter_unregister()
441 	zfcp_qdio_destroy(adapter->qdio);  in zfcp_adapter_unregister()
443 	zfcp_ccw_adapter_put(adapter); /* final put to release */  in zfcp_adapter_unregister()
447  * zfcp_adapter_release - remove the adapter from the resource list
449  * locks:	adapter list write lock is assumed to be held by caller
453 	struct zfcp_adapter *adapter = container_of(ref, struct zfcp_adapter,  in zfcp_adapter_release()  local
455 	struct ccw_device *cdev = adapter->ccw_device;  in zfcp_adapter_release()
457 	dev_set_drvdata(&adapter->ccw_device->dev, NULL);  in zfcp_adapter_release()
458 	zfcp_fc_gs_destroy(adapter);  in zfcp_adapter_release()
459 	zfcp_free_low_mem_buffers(adapter);  in zfcp_adapter_release()
460 	kfree(adapter->req_list);  in zfcp_adapter_release()
461 	kfree(adapter->fc_stats);  in zfcp_adapter_release()
462 	kfree(adapter->stats_reset_data);  in zfcp_adapter_release()
463 	kfree(adapter);  in zfcp_adapter_release()
485 	zfcp_ccw_adapter_put(port->adapter);  in zfcp_port_release()
490  * zfcp_port_enqueue - enqueue port to port list of adapter
491  * @adapter: adapter where remote port is added
501 struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,  in zfcp_port_enqueue()  argument
507 	kref_get(&adapter->ref);  in zfcp_port_enqueue()
509 	port = zfcp_get_port_by_wwpn(adapter, wwpn);  in zfcp_port_enqueue()
527 	port->adapter = adapter;  in zfcp_port_enqueue()
531 	port->dev.parent = &adapter->ccw_device->dev;  in zfcp_port_enqueue()
549 	write_lock_irq(&adapter->port_list_lock);  in zfcp_port_enqueue()
550 	list_add_tail(&port->list, &adapter->port_list);  in zfcp_port_enqueue()
551 	write_unlock_irq(&adapter->port_list_lock);  in zfcp_port_enqueue()
560 	zfcp_ccw_adapter_put(adapter);  in zfcp_port_enqueue()