-/*
+/*
* This file is part of the zfcp device driver for
* FCP adapters for IBM System z9 and zSeries.
*
* (C) Copyright IBM Corp. 2002, 2006
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_ERP
static int zfcp_erp_strategy_statechange(int, u32, struct zfcp_adapter *,
struct zfcp_port *,
struct zfcp_unit *, int);
-static inline int zfcp_erp_strategy_statechange_detected(atomic_t *, u32);
+static int zfcp_erp_strategy_statechange_detected(atomic_t *, u32);
static int zfcp_erp_strategy_followup_actions(int, struct zfcp_adapter *,
struct zfcp_port *,
struct zfcp_unit *, int);
static void zfcp_erp_action_ready(struct zfcp_erp_action *);
static int zfcp_erp_action_exists(struct zfcp_erp_action *);
-static inline void zfcp_erp_action_to_ready(struct zfcp_erp_action *);
-static inline void zfcp_erp_action_to_running(struct zfcp_erp_action *);
+static void zfcp_erp_action_to_ready(struct zfcp_erp_action *);
+static void zfcp_erp_action_to_running(struct zfcp_erp_action *);
static void zfcp_erp_memwait_handler(unsigned long);
}
/*
- * function:
+ * function:
*
* purpose: called if an adapter failed,
* initiates adapter recovery which is done
}
/*
- * function:
+ * function:
*
* purpose: Wrappper for zfcp_erp_adapter_reopen_internal
* used to ensure the correct locking
if (send_els == NULL)
goto nomem;
- send_els->req = kzalloc(sizeof(struct scatterlist), GFP_ATOMIC);
+ send_els->req = kmalloc(sizeof(struct scatterlist), GFP_ATOMIC);
if (send_els->req == NULL)
goto nomem;
+ sg_init_table(send_els->req, 1);
- send_els->resp = kzalloc(sizeof(struct scatterlist), GFP_ATOMIC);
+ send_els->resp = kmalloc(sizeof(struct scatterlist), GFP_ATOMIC);
if (send_els->resp == NULL)
goto nomem;
+ sg_init_table(send_els->resp, 1);
address = (void *) get_zeroed_page(GFP_ATOMIC);
if (address == NULL)
goto nomem;
- zfcp_address_to_sg(address, send_els->req);
+ zfcp_address_to_sg(address, send_els->req, sizeof(struct zfcp_ls_adisc));
address += PAGE_SIZE >> 1;
- zfcp_address_to_sg(address, send_els->resp);
+ zfcp_address_to_sg(address, send_els->resp, sizeof(struct zfcp_ls_adisc_acc));
send_els->req_count = send_els->resp_count = 1;
send_els->adapter = adapter;
adisc = zfcp_sg_to_address(send_els->req);
send_els->ls_code = adisc->code = ZFCP_LS_ADISC;
- send_els->req->length = sizeof(struct zfcp_ls_adisc);
- send_els->resp->length = sizeof(struct zfcp_ls_adisc_acc);
-
/* acc. to FC-FS, hard_nport_id in ADISC should not be set for ports
without FC-AL-2 capability, so we don't set it */
adisc->wwpn = fc_host_port_name(adapter->scsi_host);
retval = -ENOMEM;
freemem:
if (address != NULL)
- __free_pages(send_els->req->page, 0);
+ __free_pages(sg_page(send_els->req), 0);
if (send_els != NULL) {
kfree(send_els->req);
kfree(send_els->resp);
out:
zfcp_port_put(port);
- __free_pages(send_els->req->page, 0);
+ __free_pages(sg_page(send_els->req), 0);
kfree(send_els->req);
kfree(send_els->resp);
kfree(send_els);
/*
- * function:
+ * function:
*
* purpose: called if a port failed to be opened normally
* initiates Forced Reopen recovery which is done
}
/*
- * function:
+ * function:
*
* purpose: Wrappper for zfcp_erp_port_forced_reopen_internal
* used to ensure the correct locking
}
/*
- * function:
+ * function:
*
* purpose: called if a port is to be opened
* initiates Reopen recovery which is done
}
/*
- * function:
+ * function:
*
* purpose: called if a unit is to be opened
* initiates Reopen recovery which is done
}
/*
- * function:
+ * function:
*
* purpose: disable I/O,
* return any open requests and clean them up,
}
/*
- * function:
+ * function:
*
* purpose: enable I/O
*
}
/*
- * function:
+ * function:
*
* purpose: disable I/O,
* return any open requests and clean them up,
}
/*
- * function:
+ * function:
*
* purpose: enable I/O
*
}
/*
- * function:
+ * function:
*
* purpose:
*
* action gets an appropriate flag and will be processed
* accordingly
*/
-void zfcp_erp_timeout_handler(unsigned long data)
+static void zfcp_erp_timeout_handler(unsigned long data)
{
struct zfcp_erp_action *erp_action = (struct zfcp_erp_action *) data;
struct zfcp_adapter *adapter = erp_action->adapter;
* zfcp_erp_action_dismiss - dismiss an erp_action
*
* adapter->erp_lock must be held
- *
+ *
* Dismissal of an erp_action is usually required if an erp_action of
* higher priority is generated.
*/
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns:
*
}
/*
- * function:
+ * function:
*
* purpose: drives single error recovery action and schedules higher and
* subordinate actions, if necessary
/*
* put this target through the erp mill again if someone has
- * requested to change the status of a target being online
+ * requested to change the status of a target being online
* to offline or the other way around
* (old retval is preserved if nothing has to be done here)
*/
unlock:
write_unlock(&adapter->erp_lock);
read_unlock_irqrestore(&zfcp_data.config_lock, flags);
-
+
if (retval != ZFCP_ERP_CONTINUES)
zfcp_erp_action_cleanup(action, adapter, port, unit, retval);
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_DISMISSED - if action has been dismissed
* retval - otherwise
}
/*
- * function:
+ * function:
*
* purpose: triggers retry of this action after a certain amount of time
* by means of timer provided by erp_action
return retval;
}
-/*
+/*
* function: zfcp_erp_adapter_failed
*
* purpose: sets the adapter and all underlying devices to ERP_FAILED
debug_text_event(adapter->erp_dbf, 2, "a_afail");
}
-/*
+/*
* function: zfcp_erp_port_failed
*
* purpose: sets the port and all underlying devices to ERP_FAILED
debug_event(port->adapter->erp_dbf, 2, &port->wwpn, sizeof (wwn_t));
}
-/*
+/*
* function: zfcp_erp_unit_failed
*
* purpose: sets the unit to ERP_FAILED
* successfully is reset.
*
* returns: ZFCP_ERP_CONTINUES - action continues (not considered)
- * ZFCP_ERP_SUCCEEDED - action finished successfully
+ * ZFCP_ERP_SUCCEEDED - action finished successfully
* ZFCP_ERP_EXIT - action failed and will not continue
*/
static int
return retval;
}
-static inline int
+static int
zfcp_erp_strategy_statechange_detected(atomic_t * target_status, u32 erp_status)
{
return
{
struct zfcp_erp_add_work *p;
- p = kmalloc(sizeof(*p), GFP_KERNEL);
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
if (!p) {
ZFCP_LOG_NORMAL("error: Out of resources. Could not register "
"the FCP-LUN 0x%Lx connected to "
}
zfcp_unit_get(unit);
- memset(p, 0, sizeof(*p));
atomic_set_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
INIT_WORK(&p->work, zfcp_erp_scsi_scan);
p->unit = unit;
}
/*
- * function:
+ * function:
*
* purpose: remaining things in good cases,
* escalation in bad cases
break;
case ZFCP_ERP_ACTION_REOPEN_UNIT:
- if (status == ZFCP_ERP_SUCCEEDED) ; /* no further action */
- else
+ /* Nothing to do if status == ZFCP_ERP_SUCCEEDED */
+ if (status != ZFCP_ERP_SUCCEEDED)
zfcp_erp_port_reopen_internal(unit->port, 0);
break;
}
}
/*
- * function:
+ * function:
*
* purpose: Wrappper for zfcp_erp_port_reopen_all_internal
* used to ensure the correct locking
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: FIXME
*/
}
/*
- * function:
+ * function:
*
* purpose: this routine executes the 'Reopen Adapter' action
* (the entire action is processed synchronously, since
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_SUCCEEDED - action finished successfully
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_SUCCEEDED - action finished successfully
* ZFCP_ERP_FAILED - action finished unsuccessfully
* purpose: allocate the irq associated with this devno and register
* the FSF adapter with the SCSI stack
*
- * returns:
+ * returns:
*/
static int
zfcp_erp_adapter_strategy_generic(struct zfcp_erp_action *erp_action, int close)
* returns: 0 - successful setup
* !0 - failed setup
*/
-int
+static int
zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *erp_action)
{
int retval;
zfcp_erp_action_to_running(erp_action);
write_unlock_irq(&adapter->erp_lock);
- ret = zfcp_fsf_exchange_port_data(erp_action, adapter, NULL);
+ ret = zfcp_fsf_exchange_port_data(erp_action);
if (ret == -EOPNOTSUPP) {
debug_text_event(adapter->erp_dbf, 3, "a_xport_notsupp");
return ZFCP_ERP_SUCCEEDED;
}
/*
- * function:
+ * function:
*
* purpose: this routine executes the 'Reopen Physical Port' action
*
}
/*
- * function:
+ * function:
*
* purpose: this routine executes the 'Reopen Port' action
*
}
/*
- * function:
+ * function:
*
* purpose: makes the erp thread continue with reopen (physical) port
* actions which have been paused until the name server port
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_CONTINUES - action continues (asynchronously)
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_CONTINUES - action continues (asynchronously)
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_CONTINUES - action continues (asynchronously)
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_CONTINUES - action continues (asynchronously)
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
* purpose: this routine executes the 'Reopen Unit' action
* currently no retries
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_CONTINUES - action continues (asynchronously)
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
- * purpose:
+ * purpose:
*
* returns: ZFCP_ERP_CONTINUES - action continues (asynchronously)
* ZFCP_ERP_FAILED - action finished unsuccessfully
}
/*
- * function:
+ * function:
*
* purpose: enqueue the specified error recovery action, if needed
*
port->erp_action.action);
debug_text_event(adapter->erp_dbf, 4,
"pf_actenq_drp");
- } else
+ } else
debug_text_event(adapter->erp_dbf, 4,
"pf_actenq_drpcp");
debug_event(adapter->erp_dbf, 4, &port->wwpn,
zfcp_erp_action_dismiss(&unit->erp_action);
}
-static inline void
-zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action)
+static void zfcp_erp_action_to_running(struct zfcp_erp_action *erp_action)
{
struct zfcp_adapter *adapter = erp_action->adapter;
list_move(&erp_action->list, &erp_action->adapter->erp_running_head);
}
-static inline void
-zfcp_erp_action_to_ready(struct zfcp_erp_action *erp_action)
+static void zfcp_erp_action_to_ready(struct zfcp_erp_action *erp_action)
{
struct zfcp_adapter *adapter = erp_action->adapter;
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