diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_erp.c')
| -rw-r--r-- | drivers/s390/scsi/zfcp_erp.c | 140 |
1 files changed, 70 insertions, 70 deletions
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 16b4418ab257..a6475a2bb8a7 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -1,22 +1,22 @@ -/* +/* * 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 @@ -191,7 +191,7 @@ void zfcp_fsf_start_timer(struct zfcp_fsf_req *fsf_req, unsigned long timeout) } /* - * function: + * function: * * purpose: called if an adapter failed, * initiates adapter recovery which is done @@ -228,7 +228,7 @@ zfcp_erp_adapter_reopen_internal(struct zfcp_adapter *adapter, int clear_mask) } /* - * function: + * function: * * purpose: Wrappper for zfcp_erp_adapter_reopen_internal * used to ensure the correct locking @@ -476,7 +476,7 @@ zfcp_test_link(struct zfcp_port *port) /* - * function: + * function: * * purpose: called if a port failed to be opened normally * initiates Forced Reopen recovery which is done @@ -517,7 +517,7 @@ zfcp_erp_port_forced_reopen_internal(struct zfcp_port *port, int clear_mask) } /* - * function: + * function: * * purpose: Wrappper for zfcp_erp_port_forced_reopen_internal * used to ensure the correct locking @@ -543,7 +543,7 @@ zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear_mask) } /* - * function: + * function: * * purpose: called if a port is to be opened * initiates Reopen recovery which is done @@ -612,7 +612,7 @@ zfcp_erp_port_reopen(struct zfcp_port *port, int clear_mask) } /* - * function: + * function: * * purpose: called if a unit is to be opened * initiates Reopen recovery which is done @@ -704,7 +704,7 @@ static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter) } /* - * function: + * function: * * purpose: disable I/O, * return any open requests and clean them up, @@ -725,7 +725,7 @@ zfcp_erp_port_block(struct zfcp_port *port, int clear_mask) } /* - * function: + * function: * * purpose: enable I/O * @@ -742,7 +742,7 @@ zfcp_erp_port_unblock(struct zfcp_port *port) } /* - * function: + * function: * * purpose: disable I/O, * return any open requests and clean them up, @@ -763,7 +763,7 @@ zfcp_erp_unit_block(struct zfcp_unit *unit, int clear_mask) } /* - * function: + * function: * * purpose: enable I/O * @@ -792,7 +792,7 @@ zfcp_erp_action_ready(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * * purpose: * @@ -967,7 +967,7 @@ static void zfcp_erp_timeout_handler(unsigned long data) * 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. */ @@ -1005,9 +1005,9 @@ zfcp_erp_thread_setup(struct zfcp_adapter *adapter) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: * @@ -1094,7 +1094,7 @@ zfcp_erp_thread(void *data) } /* - * function: + * function: * * purpose: drives single error recovery action and schedules higher and * subordinate actions, if necessary @@ -1206,7 +1206,7 @@ zfcp_erp_strategy(struct zfcp_erp_action *erp_action) /* * 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) */ @@ -1228,7 +1228,7 @@ zfcp_erp_strategy(struct zfcp_erp_action *erp_action) 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); @@ -1250,9 +1250,9 @@ zfcp_erp_strategy(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_DISMISSED - if action has been dismissed * retval - otherwise @@ -1322,7 +1322,7 @@ zfcp_erp_strategy_do_action(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * * purpose: triggers retry of this action after a certain amount of time * by means of timer provided by erp_action @@ -1346,7 +1346,7 @@ zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action) return retval; } -/* +/* * function: zfcp_erp_adapter_failed * * purpose: sets the adapter and all underlying devices to ERP_FAILED @@ -1362,7 +1362,7 @@ zfcp_erp_adapter_failed(struct zfcp_adapter *adapter) 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 @@ -1386,7 +1386,7 @@ zfcp_erp_port_failed(struct zfcp_port *port) debug_event(port->adapter->erp_dbf, 2, &port->wwpn, sizeof (wwn_t)); } -/* +/* * function: zfcp_erp_unit_failed * * purpose: sets the unit to ERP_FAILED @@ -1417,7 +1417,7 @@ zfcp_erp_unit_failed(struct zfcp_unit *unit) * 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 @@ -1646,7 +1646,7 @@ zfcp_erp_schedule_work(struct zfcp_unit *unit) } /* - * function: + * function: * * purpose: remaining things in good cases, * escalation in bad cases @@ -1687,8 +1687,8 @@ zfcp_erp_strategy_followup_actions(int action, 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; } @@ -1815,7 +1815,7 @@ zfcp_erp_modify_unit_status(struct zfcp_unit *unit, u32 mask, int set_or_clear) } /* - * function: + * function: * * purpose: Wrappper for zfcp_erp_port_reopen_all_internal * used to ensure the correct locking @@ -1852,9 +1852,9 @@ zfcp_erp_port_reopen_all_internal(struct zfcp_adapter *adapter, int clear_mask) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: FIXME */ @@ -1871,7 +1871,7 @@ zfcp_erp_unit_reopen_all_internal(struct zfcp_port *port, int clear_mask) } /* - * function: + * function: * * purpose: this routine executes the 'Reopen Adapter' action * (the entire action is processed synchronously, since @@ -1908,9 +1908,9 @@ zfcp_erp_adapter_strategy(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_SUCCEEDED - action finished successfully * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -1930,9 +1930,9 @@ zfcp_erp_adapter_strategy_close(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_SUCCEEDED - action finished successfully * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -1957,7 +1957,7 @@ zfcp_erp_adapter_strategy_open(struct zfcp_erp_action *erp_action) * 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) @@ -2197,7 +2197,7 @@ zfcp_erp_adapter_strategy_open_fsf_xport(struct zfcp_erp_action *erp_action) 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; @@ -2249,7 +2249,7 @@ zfcp_erp_adapter_strategy_open_fsf_statusread(struct zfcp_erp_action } /* - * function: + * function: * * purpose: this routine executes the 'Reopen Physical Port' action * @@ -2308,7 +2308,7 @@ zfcp_erp_port_forced_strategy(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * * purpose: this routine executes the 'Reopen Port' action * @@ -2530,7 +2530,7 @@ zfcp_erp_port_strategy_open_nameserver(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * * purpose: makes the erp thread continue with reopen (physical) port * actions which have been paused until the name server port @@ -2570,9 +2570,9 @@ zfcp_erp_port_strategy_open_nameserver_wakeup(struct zfcp_erp_action } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_CONTINUES - action continues (asynchronously) * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -2626,9 +2626,9 @@ zfcp_erp_port_strategy_clearstati(struct zfcp_port *port) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_CONTINUES - action continues (asynchronously) * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -2663,9 +2663,9 @@ zfcp_erp_port_strategy_close(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_CONTINUES - action continues (asynchronously) * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -2700,9 +2700,9 @@ zfcp_erp_port_strategy_open_port(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_CONTINUES - action continues (asynchronously) * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -2737,7 +2737,7 @@ zfcp_erp_port_strategy_open_common_lookup(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * * purpose: this routine executes the 'Reopen Unit' action * currently no retries @@ -2825,9 +2825,9 @@ zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *unit) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_CONTINUES - action continues (asynchronously) * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -2865,9 +2865,9 @@ zfcp_erp_unit_strategy_close(struct zfcp_erp_action *erp_action) } /* - * function: + * function: * - * purpose: + * purpose: * * returns: ZFCP_ERP_CONTINUES - action continues (asynchronously) * ZFCP_ERP_FAILED - action finished unsuccessfully @@ -2913,7 +2913,7 @@ void zfcp_erp_start_timer(struct zfcp_fsf_req *fsf_req) } /* - * function: + * function: * * purpose: enqueue the specified error recovery action, if needed * @@ -2992,7 +2992,7 @@ zfcp_erp_action_enqueue(int action, 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, |