/*
* Allocates a combined QTCB/fsf_req buffer for erp actions and fcp/SCSI
* commands.
- * It also genrates fcp-nameserver request/response buffer and unsolicited
+ * It also genrates fcp-nameserver request/response buffer and unsolicited
* status read fsf_req buffers.
*
* locks: must only be called with zfcp_data.config_sema taken
struct zfcp_adapter *adapter;
/*
- * Note: It is safe to release the list_lock, as any list changes
+ * Note: It is safe to release the list_lock, as any list changes
* are protected by the config_sema, which must be held to get here
*/
-/*
+/*
* 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.
+ */
#ifndef ZFCP_DEF_H
#define ZFCP_DEF_H
#define ZFCP_DEVICE_TYPE 0x1732
#define ZFCP_DEVICE_MODEL 0x03
#define ZFCP_DEVICE_MODEL_PRIV 0x04
-
+
/* allow as many chained SBALs as are supported by hardware */
#define ZFCP_MAX_SBALS_PER_REQ FSF_MAX_SBALS_PER_REQ
#define ZFCP_MAX_SBALS_PER_CT_REQ FSF_MAX_SBALS_PER_REQ
/*
* this allows removal of logging code by the preprocessor
- * (the most detailed log level still to be compiled in is specified,
+ * (the most detailed log level still to be compiled in is specified,
* higher log levels are removed)
*/
#define ZFCP_LOG_LEVEL_LIMIT ZFCP_LOG_LEVEL_TRACE
if (ZFCP_LOG_CHECK(level)) \
_ZFCP_LOG(fmt, ##args); \
} while (0)
-
+
#if ZFCP_LOG_LEVEL_LIMIT < ZFCP_LOG_LEVEL_NORMAL
# define ZFCP_LOG_NORMAL(fmt, args...) do { } while (0)
#else
/*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/
-/*
- * Note, the leftmost status byte is common among adapter, port
+/*
+ * Note, the leftmost status byte is common among adapter, port
* and unit
*/
#define ZFCP_COMMON_FLAGS 0xfff00000
u32 fsf_command; /* FSF Command copy */
struct fsf_qtcb *qtcb; /* address of associated QTCB */
u32 seq_no; /* Sequence number of request */
- unsigned long data; /* private data of request */
- struct timer_list timer; /* used for erp or scsi er */
+ unsigned long data; /* private data of request */
+ struct timer_list timer; /* used for erp or scsi er */
struct zfcp_erp_action *erp_action; /* used if this request is
issued on behalf of erp */
mempool_t *pool; /* used if request was alloacted
-/*
+/*
* 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
}
/*
- * 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
/*
- * 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:
*
* 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
}
/*
- * function:
+ * function:
*
* purpose: remaining things in good cases,
* escalation in bad cases
}
/*
- * 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)
}
/*
- * 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,
-/*
+/*
* 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.
*/
#ifndef ZFCP_EXT_H
/*
* function: zfcp_fsf_req_alloc
*
- * purpose: Obtains an fsf_req and potentially a qtcb (for all but
+ * purpose: Obtains an fsf_req and potentially a qtcb (for all but
* unsolicited requests) via helper functions
* Does some initial fsf request set-up.
- *
+ *
* returns: pointer to allocated fsf_req if successfull
* NULL otherwise
*
* returns: 0 - success
* !0 - failure
*
- * context:
+ * context:
*/
int
zfcp_fsf_req_complete(struct zfcp_fsf_req *fsf_req)
}
/*
- * fsf_req may be deleted due to waking up functions, so
- * cleanup is saved here and used later
+ * fsf_req may be deleted due to waking up functions, so
+ * cleanup is saved here and used later
*/
if (likely(fsf_req->status & ZFCP_STATUS_FSFREQ_CLEANUP))
cleanup = 1;
* and initiates appropriate actions
* (usually calling FSF command specific handlers)
*
- * returns:
+ * returns:
*
- * context:
+ * context:
*
* locks:
*/
*
* purpose: calls the appropriate command specific handler
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_req_dispatch(struct zfcp_fsf_req *fsf_req)
*
* purpose: is called for finished Open Port command
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
* returns: address of initiated FSF request
* NULL - request could not be initiated
*
- * FIXME(design): should be watched by a timeout !!!
+ * FIXME(design): should be watched by a timeout !!!
* FIXME(design) shouldn't this be modified to return an int
* also...don't know how though
*/
*
* purpose: is called for finished Abort FCP Command request
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req)
/*
* function: zfcp_fsf_open_port
*
- * purpose:
+ * purpose:
*
* returns: address of initiated FSF request
- * NULL - request could not be initiated
+ * NULL - request could not be initiated
*/
int
zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
*
* purpose: is called for finished Open Port command
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_open_port_handler(struct zfcp_fsf_req *fsf_req)
*
* purpose: is called for finished Open LUN command
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *fsf_req)
* purpose:
*
* returns: address of fsf_req - request successfully initiated
- * NULL -
+ * NULL -
*
* assumptions: This routine does not check whether the associated
* remote port/lun has already been opened. This should be
*
* purpose: is called for finished Send FCP Command
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
*
* purpose: evaluates FCP_RSP IU
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *fsf_req)
*
* purpose: evaluates FCP_RSP IU
*
- * returns:
+ * returns:
*/
static int
zfcp_fsf_send_fcp_command_task_management_handler(struct zfcp_fsf_req *fsf_req)
INIT_LIST_HEAD(&fsf_req->list);
init_timer(&fsf_req->timer);
- /* initialize waitqueue which may be used to wait on
+ /* initialize waitqueue which may be used to wait on
this request completion */
init_waitqueue_head(&fsf_req->completion_wq);
-/*
+/*
* 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.
*/
#ifndef FSF_H
* That is why we need to clear the link-down flag
* which is set again in case we have missed by a mile.
*/
- zfcp_erp_adapter_reopen(
- adapter,
- ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
- ZFCP_STATUS_COMMON_ERP_FAILED);
+ zfcp_erp_adapter_reopen(adapter,
+ ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
+ ZFCP_STATUS_COMMON_ERP_FAILED);
}
return retval;
}
-/*
+/*
* 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_SCSI
((unsigned char *) fcp_cmd +
sizeof (struct fcp_cmnd_iu) + additional_length);
/*
- * fcp_dl_addr = start address of fcp_cmnd structure +
+ * fcp_dl_addr = start address of fcp_cmnd structure +
* size of fixed part + size of dynamically sized add_dcp_cdb field
* SEE FCP-2 documentation
*/
"address %p\n", sdpnt);
}
-/*
+/*
* called from scsi midlayer to allow finetuning of a device.
*/
static int
/**
* zfcp_scsi_eh_abort_handler - abort the specified SCSI command
- * @scpnt: pointer to scsi_cmnd to be aborted
+ * @scpnt: pointer to scsi_cmnd to be aborted
* Return: SUCCESS - command has been aborted and cleaned up in internal
* bookkeeping, SCSI stack won't be called for aborted command
* FAILED - otherwise
.attrs = zfcp_unit_attrs,
};
-/**
+/**
* zfcp_sysfs_create_unit_files - create sysfs unit files
* @dev: pointer to belonging device
*
return sysfs_create_group(&dev->kobj, &zfcp_unit_attr_group);
}
-/**
+/**
* zfcp_sysfs_remove_unit_files - remove sysfs unit files
* @dev: pointer to belonging device
*
projects / linux-2.6 / commitdiff