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Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
-rw-r--r--drivers/s390/scsi/zfcp_aux.c75
1 files changed, 21 insertions, 54 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 7084a6ae1096..47739f4f6709 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -1,22 +1,9 @@
/*
- * This file is part of the zfcp device driver for
- * FCP adapters for IBM System z9 and zSeries.
+ * zfcp device driver
*
- * (C) Copyright IBM Corp. 2002, 2006
+ * Module interface and handling of zfcp data structures.
*
- * 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.
+ * Copyright IBM Corporation 2002, 2008
*/
/*
@@ -31,13 +18,16 @@
* Maxim Shchetynin
* Volker Sameske
* Ralph Wuerthner
+ * Michael Loehr
+ * Swen Schillig
+ * Christof Schmitt
+ * Martin Petermann
+ * Sven Schuetz
*/
#include <linux/miscdevice.h>
#include "zfcp_ext.h"
-/* accumulated log level (module parameter) */
-static u32 loglevel = ZFCP_LOG_LEVEL_DEFAULTS;
static char *device;
/*********************** FUNCTION PROTOTYPES *********************************/
@@ -57,12 +47,6 @@ MODULE_LICENSE("GPL");
module_param(device, charp, 0400);
MODULE_PARM_DESC(device, "specify initial device");
-module_param(loglevel, uint, 0400);
-MODULE_PARM_DESC(loglevel,
- "log levels, 8 nibbles: "
- "FC ERP QDIO CIO Config FSF SCSI Other, "
- "levels: 0=none 1=normal 2=devel 3=trace");
-
/****************************************************************/
/************** Functions without logging ***********************/
/****************************************************************/
@@ -87,8 +71,6 @@ _zfcp_hex_dump(char *addr, int count)
/****** Functions to handle the request ID hash table ********/
/****************************************************************/
-#define ZFCP_LOG_AREA ZFCP_LOG_AREA_FSF
-
static int zfcp_reqlist_alloc(struct zfcp_adapter *adapter)
{
int idx;
@@ -118,14 +100,10 @@ int zfcp_reqlist_isempty(struct zfcp_adapter *adapter)
return 1;
}
-#undef ZFCP_LOG_AREA
-
/****************************************************************/
/************** Uncategorised Functions *************************/
/****************************************************************/
-#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER
-
/**
* zfcp_device_setup - setup function
* @str: pointer to parameter string
@@ -143,8 +121,11 @@ zfcp_device_setup(char *devstr)
len = strlen(devstr) + 1;
str = kmalloc(len, GFP_KERNEL);
- if (!str)
- goto err_out;
+ if (!str) {
+ pr_err("zfcp: Could not allocate memory for "
+ "device parameter string, device not attached.\n");
+ return 0;
+ }
memcpy(str, devstr, len);
tmp = strchr(str, ',');
@@ -167,7 +148,8 @@ zfcp_device_setup(char *devstr)
return 1;
err_out:
- ZFCP_LOG_NORMAL("Parse error for device parameter string %s\n", str);
+ pr_err("zfcp: Parse error for device parameter string %s, "
+ "device not attached.\n", str);
kfree(str);
return 0;
}
@@ -248,8 +230,6 @@ zfcp_module_init(void)
if (!zfcp_data.gid_pn_cache)
goto out_gid_cache;
- atomic_set(&zfcp_data.loglevel, loglevel);
-
/* initialize adapter list */
INIT_LIST_HEAD(&zfcp_data.adapter_list_head);
@@ -263,8 +243,7 @@ zfcp_module_init(void)
retval = misc_register(&zfcp_cfdc_misc);
if (retval != 0) {
- ZFCP_LOG_INFO("registration of misc device "
- "zfcp_cfdc failed\n");
+ pr_err("zfcp: registration of misc device zfcp_cfdc failed\n");
goto out_misc;
}
@@ -277,7 +256,7 @@ zfcp_module_init(void)
/* setup dynamic I/O */
retval = zfcp_ccw_register();
if (retval) {
- ZFCP_LOG_NORMAL("registration with common I/O layer failed\n");
+ pr_err("zfcp: Registration with common I/O layer failed.\n");
goto out_ccw_register;
}
@@ -300,14 +279,10 @@ zfcp_module_init(void)
return retval;
}
-#undef ZFCP_LOG_AREA
-
/****************************************************************/
/****** Functions for configuration/set-up of structures ********/
/****************************************************************/
-#define ZFCP_LOG_AREA ZFCP_LOG_AREA_CONFIG
-
/**
* zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN
* @port: pointer to port to search for unit
@@ -598,6 +573,8 @@ static void _zfcp_status_read_scheduler(struct work_struct *work)
* All adapter internal structures are set up.
* Proc-fs entries are also created.
*
+ * FIXME: Use -ENOMEM as return code for allocation failures
+ *
* returns: 0 if a new adapter was successfully enqueued
* ZFCP_KNOWN if an adapter with this devno was already present
* -ENOMEM if alloc failed
@@ -615,11 +592,8 @@ zfcp_adapter_enqueue(struct ccw_device *ccw_device)
/* try to allocate new adapter data structure (zeroed) */
adapter = kzalloc(sizeof (struct zfcp_adapter), GFP_KERNEL);
- if (!adapter) {
- ZFCP_LOG_INFO("error: allocation of base adapter "
- "structure failed\n");
+ if (!adapter)
goto out;
- }
ccw_device->handler = NULL;
@@ -760,7 +734,6 @@ zfcp_adapter_dequeue(struct zfcp_adapter *adapter)
zfcp_reqlist_free(adapter);
kfree(adapter->fc_stats);
kfree(adapter->stats_reset_data);
- ZFCP_LOG_TRACE("freeing adapter structure\n");
kfree(adapter);
out:
return;
@@ -908,12 +881,8 @@ zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
port = zfcp_port_enqueue(adapter, 0, ZFCP_STATUS_PORT_WKA,
ZFCP_DID_DIRECTORY_SERVICE);
- if (!port) {
- ZFCP_LOG_INFO("error: enqueue of nameserver port for "
- "adapter %s failed\n",
- zfcp_get_busid_by_adapter(adapter));
+ if (!port)
return -ENXIO;
- }
zfcp_port_put(port);
return 0;
@@ -946,5 +915,3 @@ int zfcp_sg_setup_table(struct scatterlist *sg, int count)
}
return 0;
}
-
-#undef ZFCP_LOG_AREA
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-21 01:55:49 +0100