/** * zfcp_adapter_enqueue - enqueue a new adapter to the list * @ccw_device: pointer to the struct cc_device * * Returns: struct zfcp_adapter* * Enqueues an adapter at the end of the adapter list in the driver data. * All adapter internal structures are set up. * Proc-fs entries are also created. */ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device) { struct zfcp_adapter *adapter; if (!get_device(&ccw_device->dev)) return ERR_PTR(-ENODEV); adapter = kzalloc(sizeof(struct zfcp_adapter), GFP_KERNEL); if (!adapter) { put_device(&ccw_device->dev); return ERR_PTR(-ENOMEM); } kref_init(&adapter->ref); ccw_device->handler = NULL; adapter->ccw_device = ccw_device; INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler); INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports); INIT_WORK(&adapter->ns_up_work, zfcp_fc_sym_name_update); if (zfcp_qdio_setup(adapter)) goto failed; if (zfcp_allocate_low_mem_buffers(adapter)) goto failed; adapter->req_list = zfcp_reqlist_alloc(); if (!adapter->req_list) goto failed; if (zfcp_dbf_adapter_register(adapter)) goto failed; if (zfcp_setup_adapter_work_queue(adapter)) goto failed; if (zfcp_fc_gs_setup(adapter)) goto failed; rwlock_init(&adapter->port_list_lock); INIT_LIST_HEAD(&adapter->port_list); INIT_LIST_HEAD(&adapter->events.list); INIT_WORK(&adapter->events.work, zfcp_fc_post_event); spin_lock_init(&adapter->events.list_lock); init_waitqueue_head(&adapter->erp_ready_wq); init_waitqueue_head(&adapter->erp_done_wqh); INIT_LIST_HEAD(&adapter->erp_ready_head); INIT_LIST_HEAD(&adapter->erp_running_head); rwlock_init(&adapter->erp_lock); rwlock_init(&adapter->abort_lock); if (zfcp_erp_thread_setup(adapter)) goto failed; adapter->service_level.seq_print = zfcp_print_sl; dev_set_drvdata(&ccw_device->dev, adapter); if (sysfs_create_group(&ccw_device->dev.kobj, &zfcp_sysfs_adapter_attrs)) goto failed; /* report size limit per scatter-gather segment */ adapter->dma_parms.max_segment_size = ZFCP_QDIO_SBALE_LEN; adapter->ccw_device->dev.dma_parms = &adapter->dma_parms; adapter->stat_read_buf_num = FSF_STATUS_READS_RECOM; if (!zfcp_scsi_adapter_register(adapter)) return adapter; failed: zfcp_adapter_unregister(adapter); return ERR_PTR(-ENOMEM); }
/** * zfcp_adapter_enqueue - enqueue a new adapter to the list * @ccw_device: pointer to the struct cc_device * * Returns: struct zfcp_adapter* * Enqueues an adapter at the end of the adapter list in the driver data. * All adapter internal structures are set up. * Proc-fs entries are also created. */ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device) { struct zfcp_adapter *adapter; if (!get_device(&ccw_device->dev)) return ERR_PTR(-ENODEV); adapter = kzalloc(sizeof(struct zfcp_adapter), GFP_KERNEL); if (!adapter) { put_device(&ccw_device->dev); return ERR_PTR(-ENOMEM); } kref_init(&adapter->ref); ccw_device->handler = NULL; adapter->ccw_device = ccw_device; INIT_WORK(&adapter->stat_work, _zfcp_status_read_scheduler); INIT_WORK(&adapter->scan_work, zfcp_fc_scan_ports); if (zfcp_qdio_setup(adapter)) goto failed; if (zfcp_allocate_low_mem_buffers(adapter)) goto failed; adapter->req_list = zfcp_reqlist_alloc(); if (!adapter->req_list) goto failed; if (zfcp_dbf_adapter_register(adapter)) goto failed; if (zfcp_setup_adapter_work_queue(adapter)) goto failed; if (zfcp_fc_gs_setup(adapter)) goto failed; rwlock_init(&adapter->port_list_lock); INIT_LIST_HEAD(&adapter->port_list); init_waitqueue_head(&adapter->erp_ready_wq); init_waitqueue_head(&adapter->erp_done_wqh); INIT_LIST_HEAD(&adapter->erp_ready_head); INIT_LIST_HEAD(&adapter->erp_running_head); rwlock_init(&adapter->erp_lock); rwlock_init(&adapter->abort_lock); if (zfcp_erp_thread_setup(adapter)) goto failed; adapter->service_level.seq_print = zfcp_print_sl; dev_set_drvdata(&ccw_device->dev, adapter); if (sysfs_create_group(&ccw_device->dev.kobj, &zfcp_sysfs_adapter_attrs)) goto failed; if (!zfcp_adapter_scsi_register(adapter)) return adapter; failed: zfcp_adapter_unregister(adapter); return ERR_PTR(-ENOMEM); }