static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
char *id, void *ref)
{
struct zfcp_unit *unit;
list_for_each_entry(unit, &port->unit_list_head, list)
_zfcp_erp_unit_reopen(unit, clear, id, ref);
}
/**
* zfcp_erp_unit_reopen - initiate reopen of a unit
* @unit: unit to be reopened
* @clear_mask: specifies flags in unit status to be cleared
* Return: 0 on success, < 0 on error
*/
void zfcp_erp_unit_reopen(struct zfcp_unit *unit, int clear, u8 id, void *ref)
{
unsigned long flags;
struct zfcp_port *port = unit->port;
struct zfcp_adapter *adapter = port->adapter;
read_lock_irqsave(&zfcp_data.config_lock, flags);
write_lock(&adapter->erp_lock);
_zfcp_erp_unit_reopen(unit, clear, id, ref);
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
}
static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
{
switch (act->action) {
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
_zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
_zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_PORT:
_zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL);
break;
case ZFCP_ERP_ACTION_REOPEN_UNIT:
_zfcp_erp_unit_reopen(act->unit, 0, "ersff_4", NULL);
break;
}
}
static int zfcp_erp_strategy_statechange(struct zfcp_erp_action *act, int ret)
{
int action = act->action;
struct zfcp_adapter *adapter = act->adapter;
struct zfcp_port *port = act->port;
struct zfcp_unit *unit = act->unit;
u32 erp_status = act->status;
switch (action) {
case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) {
_zfcp_erp_adapter_reopen(adapter,
ZFCP_STATUS_COMMON_ERP_FAILED,
"ersscg1", NULL);
return ZFCP_ERP_EXIT;
}
break;
case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
case ZFCP_ERP_ACTION_REOPEN_PORT:
if (zfcp_erp_strat_change_det(&port->status, erp_status)) {
_zfcp_erp_port_reopen(port,
ZFCP_STATUS_COMMON_ERP_FAILED,
"ersscg2", NULL);
return ZFCP_ERP_EXIT;
}
break;
case ZFCP_ERP_ACTION_REOPEN_UNIT:
if (zfcp_erp_strat_change_det(&unit->status, erp_status)) {
_zfcp_erp_unit_reopen(unit,
ZFCP_STATUS_COMMON_ERP_FAILED,
"ersscg3", NULL);
return ZFCP_ERP_EXIT;
}
break;
}
return ret;
}