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path: root/drivers/s390/scsi/zfcp_erp.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_erp.c')
-rw-r--r--drivers/s390/scsi/zfcp_erp.c68
1 files changed, 36 insertions, 32 deletions
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 8030e25152f..c75d6f35cb5 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -553,40 +553,35 @@ static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear,
553 _zfcp_erp_unit_reopen(unit, clear, id, ref); 553 _zfcp_erp_unit_reopen(unit, clear, id, ref);
554} 554}
555 555
556static void zfcp_erp_strategy_followup_actions(struct zfcp_erp_action *act) 556static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
557{ 557{
558 struct zfcp_adapter *adapter = act->adapter;
559 struct zfcp_port *port = act->port;
560 struct zfcp_unit *unit = act->unit;
561 u32 status = act->status;
562
563 /* initiate follow-up actions depending on success of finished action */
564 switch (act->action) { 558 switch (act->action) {
565
566 case ZFCP_ERP_ACTION_REOPEN_ADAPTER: 559 case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
567 if (status == ZFCP_ERP_SUCCEEDED) 560 _zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1", NULL);
568 _zfcp_erp_port_reopen_all(adapter, 0, "ersfa_1", NULL);
569 else
570 _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_2", NULL);
571 break; 561 break;
572
573 case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: 562 case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
574 if (status == ZFCP_ERP_SUCCEEDED) 563 _zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2", NULL);
575 _zfcp_erp_port_reopen(port, 0, "ersfa_3", NULL);
576 else
577 _zfcp_erp_adapter_reopen(adapter, 0, "ersfa_4", NULL);
578 break; 564 break;
579
580 case ZFCP_ERP_ACTION_REOPEN_PORT: 565 case ZFCP_ERP_ACTION_REOPEN_PORT:
581 if (status == ZFCP_ERP_SUCCEEDED) 566 _zfcp_erp_port_reopen(act->port, 0, "ersff_3", NULL);
582 _zfcp_erp_unit_reopen_all(port, 0, "ersfa_5", NULL);
583 else
584 _zfcp_erp_port_forced_reopen(port, 0, "ersfa_6", NULL);
585 break; 567 break;
586
587 case ZFCP_ERP_ACTION_REOPEN_UNIT: 568 case ZFCP_ERP_ACTION_REOPEN_UNIT:
588 if (status != ZFCP_ERP_SUCCEEDED) 569 _zfcp_erp_unit_reopen(act->unit, 0, "ersff_4", NULL);
589 _zfcp_erp_port_reopen(unit->port, 0, "ersfa_7", NULL); 570 break;
571 }
572}
573
574static void zfcp_erp_strategy_followup_success(struct zfcp_erp_action *act)
575{
576 switch (act->action) {
577 case ZFCP_ERP_ACTION_REOPEN_ADAPTER:
578 _zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1", NULL);
579 break;
580 case ZFCP_ERP_ACTION_REOPEN_PORT_FORCED:
581 _zfcp_erp_port_reopen(act->port, 0, "ersfs_2", NULL);
582 break;
583 case ZFCP_ERP_ACTION_REOPEN_PORT:
584 _zfcp_erp_unit_reopen_all(act->port, 0, "ersfs_3", NULL);
590 break; 585 break;
591 } 586 }
592} 587}
@@ -801,7 +796,7 @@ static int zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action)
801 return ZFCP_ERP_FAILED; 796 return ZFCP_ERP_FAILED;
802 797
803 case ZFCP_ERP_STEP_PHYS_PORT_CLOSING: 798 case ZFCP_ERP_STEP_PHYS_PORT_CLOSING:
804 if (status & ZFCP_STATUS_PORT_PHYS_OPEN) 799 if (!(status & ZFCP_STATUS_PORT_PHYS_OPEN))
805 return ZFCP_ERP_SUCCEEDED; 800 return ZFCP_ERP_SUCCEEDED;
806 } 801 }
807 return ZFCP_ERP_FAILED; 802 return ZFCP_ERP_FAILED;
@@ -853,11 +848,17 @@ void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
853 gid_pn_work); 848 gid_pn_work);
854 849
855 retval = zfcp_fc_ns_gid_pn(&port->erp_action); 850 retval = zfcp_fc_ns_gid_pn(&port->erp_action);
856 if (retval == -ENOMEM) 851 if (!retval) {
857 zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM); 852 port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
858 port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP; 853 goto out;
859 if (retval) 854 }
860 zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED); 855 if (retval == -ENOMEM) {
856 zfcp_erp_notify(&port->erp_action, ZFCP_STATUS_ERP_LOWMEM);
857 goto out;
858 }
859 /* all other error condtions */
860 zfcp_erp_notify(&port->erp_action, 0);
861out:
861 zfcp_port_put(port); 862 zfcp_port_put(port);
862} 863}
863 864
@@ -1289,7 +1290,10 @@ static int zfcp_erp_strategy(struct zfcp_erp_action *erp_action)
1289 retval = zfcp_erp_strategy_statechange(erp_action, retval); 1290 retval = zfcp_erp_strategy_statechange(erp_action, retval);
1290 if (retval == ZFCP_ERP_EXIT) 1291 if (retval == ZFCP_ERP_EXIT)
1291 goto unlock; 1292 goto unlock;
1292 zfcp_erp_strategy_followup_actions(erp_action); 1293 if (retval == ZFCP_ERP_SUCCEEDED)
1294 zfcp_erp_strategy_followup_success(erp_action);
1295 if (retval == ZFCP_ERP_FAILED)
1296 zfcp_erp_strategy_followup_failed(erp_action);
1293 1297
1294 unlock: 1298 unlock:
1295 write_unlock(&adapter->erp_lock); 1299 write_unlock(&adapter->erp_lock);