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_modify_adapter_status(adapter, "syafai1", NULL,
ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"syafai2", NULL);
zfcp_erp_wait(adapter);
out:
zfcp_ccw_adapter_put(adapter);
return retval ? retval : (ssize_t) count;
}
/**
* zfcp_sysfs_adapter_failed_store - failed state of adapter
* @dev: pointer to belonging device
* @buf: pointer to input buffer
* @count: number of bytes in buffer
*
* Store function of the "failed" attribute of an adapter.
* If a "0" gets written to "failed", error recovery will be
* started for the belonging adapter.
*/
static ssize_t
zfcp_sysfs_adapter_failed_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct zfcp_adapter *adapter;
unsigned int val;
char *endp;
int retval = 0;
down(&zfcp_data.config_sema);
adapter = dev_get_drvdata(dev);
if (atomic_test_mask(ZFCP_STATUS_COMMON_REMOVE, &adapter->status)) {
retval = -EBUSY;
goto out;
}
val = simple_strtoul(buf, &endp, 0);
if (((endp + 1) < (buf + count)) || (val != 0)) {
retval = -EINVAL;
goto out;
}
zfcp_erp_modify_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
zfcp_erp_wait(adapter);
out:
up(&zfcp_data.config_sema);
return retval ? retval : (ssize_t) count;
}
static void zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *act)
{
struct zfcp_adapter *adapter = act->adapter;
/* close queues to ensure that buffers are not accessed by adapter */
zfcp_qdio_close(adapter->qdio);
zfcp_fsf_req_dismiss_all(adapter);
adapter->fsf_req_seq_no = 0;
zfcp_fc_wka_ports_force_offline(adapter->gs);
/* all ports and units are closed */
zfcp_erp_modify_adapter_status(adapter, "erascl1", NULL,
ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
}
static int zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *act,
int close)
{
int retval = ZFCP_ERP_SUCCEEDED;
struct zfcp_adapter *adapter = act->adapter;
if (close)
goto close_only;
retval = zfcp_erp_adapter_strategy_open_qdio(act);
if (retval != ZFCP_ERP_SUCCEEDED)
goto failed_qdio;
retval = zfcp_erp_adapter_strategy_open_fsf(act);
if (retval != ZFCP_ERP_SUCCEEDED)
goto failed_openfcp;
atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &act->adapter->status);
return ZFCP_ERP_SUCCEEDED;
close_only:
atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
&act->adapter->status);
failed_openfcp:
/* close queues to ensure that buffers are not accessed by adapter */
zfcp_qdio_close(adapter);
zfcp_fsf_req_dismiss_all(adapter);
adapter->fsf_req_seq_no = 0;
/* all ports and units are closed */
zfcp_erp_modify_adapter_status(adapter, 24, NULL,
ZFCP_STATUS_COMMON_OPEN, ZFCP_CLEAR);
failed_qdio:
atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK |
ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
&act->adapter->status);
return retval;
}
static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int mask)
{
zfcp_erp_modify_adapter_status(adapter, "erablk1", NULL,
ZFCP_STATUS_COMMON_UNBLOCKED | mask,
ZFCP_CLEAR);
}
