static int zfcp_erp_strategy_check_adapter(struct zfcp_adapter *adapter, int result) { switch (result) { case ZFCP_ERP_SUCCEEDED : atomic_set(&adapter->erp_counter, 0); zfcp_erp_adapter_unblock(adapter); break; case ZFCP_ERP_FAILED : atomic_inc(&adapter->erp_counter); if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS) { dev_err(&adapter->ccw_device->dev, "ERP cannot recover an error " "on the FCP device\n"); zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); } break; } if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) { zfcp_erp_adapter_block(adapter, 0); result = ZFCP_ERP_EXIT; } return result; }
static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct ccw_device *cdev = to_ccwdev(dev); struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); unsigned long val; int retval = 0; if (!adapter) return -ENODEV; if (strict_strtoul(buf, 0, &val) || val != 0) { retval = -EINVAL; goto out; } zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING); zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, "syafai2"); zfcp_erp_wait(adapter); out: zfcp_ccw_adapter_put(adapter); return retval ? retval : (ssize_t) count; }
static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear_mask, char *id) { zfcp_erp_adapter_block(adapter, clear_mask); zfcp_scsi_schedule_rports_block(adapter); if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) { zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); return -EIO; } return zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter, NULL, NULL, id, 0); }
void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear, char *id) { unsigned long flags; zfcp_erp_adapter_block(adapter, clear); zfcp_scsi_schedule_rports_block(adapter); write_lock_irqsave(&adapter->erp_lock, flags); if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED); else zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter, NULL, NULL, id, 0); write_unlock_irqrestore(&adapter->erp_lock, flags); }