diff options
Diffstat (limited to 'drivers/s390/scsi/zfcp_aux.c')
-rw-r--r-- | drivers/s390/scsi/zfcp_aux.c | 75 |
1 files changed, 21 insertions, 54 deletions
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 7084a6ae109..47739f4f670 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 |