static void __init zfcp_init_device_configure(void) { struct zfcp_adapter *adapter; struct zfcp_port *port; struct zfcp_unit *unit; down(&zfcp_data.config_sema); read_lock_irq(&zfcp_data.config_lock); adapter = zfcp_get_adapter_by_busid(zfcp_data.init_busid); if (adapter) zfcp_adapter_get(adapter); read_unlock_irq(&zfcp_data.config_lock); if (!adapter) goto out_adapter; port = zfcp_port_enqueue(adapter, zfcp_data.init_wwpn, 0, 0); if (IS_ERR(port)) goto out_port; unit = zfcp_unit_enqueue(port, zfcp_data.init_fcp_lun); if (IS_ERR(unit)) goto out_unit; up(&zfcp_data.config_sema); ccw_device_set_online(adapter->ccw_device); zfcp_erp_wait(adapter); down(&zfcp_data.config_sema); zfcp_unit_put(unit); out_unit: zfcp_port_put(port); out_port: zfcp_adapter_put(adapter); out_adapter: up(&zfcp_data.config_sema); return; }
/** * zfcp_sysfs_port_add_store - add a port to sysfs tree * @dev: pointer to belonging device * @buf: pointer to input buffer * @count: number of bytes in buffer * * Store function of the "port_add" attribute of an adapter. */ static ssize_t zfcp_sysfs_port_add_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { wwn_t wwpn; char *endp; struct zfcp_adapter *adapter; struct zfcp_port *port; int retval = -EINVAL; down(&zfcp_data.config_sema); adapter = dev_get_drvdata(dev); if (atomic_test_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status)) { retval = -EBUSY; goto out; } wwpn = simple_strtoull(buf, &endp, 0); if ((endp + 1) < (buf + count)) goto out; port = zfcp_port_enqueue(adapter, wwpn, 0, 0); if (!port) goto out; retval = 0; zfcp_erp_port_reopen(port, 0); zfcp_erp_wait(port->adapter); zfcp_port_put(port); out: up(&zfcp_data.config_sema); return retval ? retval : (ssize_t) count; }
static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter) { struct zfcp_port *port; port = zfcp_port_enqueue(adapter, adapter->peer_wwpn, 0, adapter->peer_d_id); if (IS_ERR(port)) return; _zfcp_erp_port_reopen(port, 0, "ereptp1"); }
static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter) { struct zfcp_port *port; port = zfcp_port_enqueue(adapter, adapter->peer_wwpn, 0, adapter->peer_d_id); if (IS_ERR(port)) /* error or port already attached */ return; _zfcp_erp_port_reopen(port, 0, "ereptp1", NULL); }
static int zfcp_nameserver_enqueue(struct zfcp_adapter *adapter) { struct zfcp_port *port; port = zfcp_port_enqueue(adapter, 0, ZFCP_STATUS_PORT_WKA, ZFCP_DID_DIRECTORY_SERVICE); if (IS_ERR(port)) return PTR_ERR(port); zfcp_port_put(port); return 0; }
static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun) { struct zfcp_adapter *adapter; struct zfcp_port *port; struct zfcp_unit *unit; down(&zfcp_data.config_sema); read_lock_irq(&zfcp_data.config_lock); adapter = zfcp_get_adapter_by_busid(busid); if (adapter) zfcp_adapter_get(adapter); read_unlock_irq(&zfcp_data.config_lock); if (!adapter) goto out_adapter; port = zfcp_port_enqueue(adapter, wwpn, 0, 0); if (IS_ERR(port)) goto out_port; unit = zfcp_unit_enqueue(port, lun); if (IS_ERR(unit)) goto out_unit; up(&zfcp_data.config_sema); ccw_device_set_online(adapter->ccw_device); zfcp_erp_wait(adapter); wait_event(adapter->erp_done_wqh, !(atomic_read(&unit->status) & ZFCP_STATUS_UNIT_SCSI_WORK_PENDING)); down(&zfcp_data.config_sema); zfcp_unit_put(unit); out_unit: zfcp_port_put(port); out_port: zfcp_adapter_put(adapter); out_adapter: up(&zfcp_data.config_sema); return; }
static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun) { struct zfcp_adapter *adapter; struct zfcp_port *port; struct zfcp_unit *unit; mutex_lock(&zfcp_data.config_mutex); read_lock_irq(&zfcp_data.config_lock); adapter = zfcp_get_adapter_by_busid(busid); if (adapter) zfcp_adapter_get(adapter); read_unlock_irq(&zfcp_data.config_lock); if (!adapter) goto out_adapter; port = zfcp_port_enqueue(adapter, wwpn, 0, 0); if (IS_ERR(port)) goto out_port; unit = zfcp_unit_enqueue(port, lun); if (IS_ERR(unit)) goto out_unit; mutex_unlock(&zfcp_data.config_mutex); ccw_device_set_online(adapter->ccw_device); zfcp_erp_wait(adapter); flush_work(&unit->scsi_work); mutex_lock(&zfcp_data.config_mutex); zfcp_unit_put(unit); out_unit: zfcp_port_put(port); out_port: zfcp_adapter_put(adapter); out_adapter: mutex_unlock(&zfcp_data.config_mutex); return; }