mirror of
https://github.com/torvalds/linux.git
synced 2024-11-13 23:51:39 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
136 lines
5.2 KiB
C
136 lines
5.2 KiB
C
/*
|
|
* linux/drivers/s390/scsi/zfcp_sysfs_driver.c
|
|
*
|
|
* FCP adapter driver for IBM eServer zSeries
|
|
*
|
|
* sysfs driver related routines
|
|
*
|
|
* (C) Copyright IBM Corp. 2003, 2004
|
|
*
|
|
* Authors:
|
|
* Martin Peschke <mpeschke@de.ibm.com>
|
|
* Heiko Carstens <heiko.carstens@de.ibm.com>
|
|
* Andreas Herrmann <aherrman@de.ibm.com>
|
|
*
|
|
* 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_SYSFS_DRIVER_C_REVISION "$Revision: 1.17 $"
|
|
|
|
#include "zfcp_ext.h"
|
|
|
|
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_CONFIG
|
|
|
|
/**
|
|
* ZFCP_DEFINE_DRIVER_ATTR - define for all loglevels sysfs attributes
|
|
* @_name: name of attribute
|
|
* @_define: name of ZFCP loglevel define
|
|
*
|
|
* Generates store function for a sysfs loglevel attribute of zfcp driver.
|
|
*/
|
|
#define ZFCP_DEFINE_DRIVER_ATTR(_name, _define) \
|
|
static ssize_t zfcp_sysfs_loglevel_##_name##_store(struct device_driver *drv, \
|
|
const char *buf, \
|
|
size_t count) \
|
|
{ \
|
|
unsigned int loglevel; \
|
|
unsigned int new_loglevel; \
|
|
char *endp; \
|
|
\
|
|
new_loglevel = simple_strtoul(buf, &endp, 0); \
|
|
if ((endp + 1) < (buf + count)) \
|
|
return -EINVAL; \
|
|
if (new_loglevel > 3) \
|
|
return -EINVAL; \
|
|
down(&zfcp_data.config_sema); \
|
|
loglevel = atomic_read(&zfcp_data.loglevel); \
|
|
loglevel &= ~((unsigned int) 0xf << (ZFCP_LOG_AREA_##_define << 2)); \
|
|
loglevel |= new_loglevel << (ZFCP_LOG_AREA_##_define << 2); \
|
|
atomic_set(&zfcp_data.loglevel, loglevel); \
|
|
up(&zfcp_data.config_sema); \
|
|
return count; \
|
|
} \
|
|
\
|
|
static ssize_t zfcp_sysfs_loglevel_##_name##_show(struct device_driver *dev, \
|
|
char *buf) \
|
|
{ \
|
|
return sprintf(buf,"%d\n", (unsigned int) \
|
|
ZFCP_GET_LOG_VALUE(ZFCP_LOG_AREA_##_define)); \
|
|
} \
|
|
\
|
|
static DRIVER_ATTR(loglevel_##_name, S_IWUSR | S_IRUGO, \
|
|
zfcp_sysfs_loglevel_##_name##_show, \
|
|
zfcp_sysfs_loglevel_##_name##_store);
|
|
|
|
ZFCP_DEFINE_DRIVER_ATTR(other, OTHER);
|
|
ZFCP_DEFINE_DRIVER_ATTR(scsi, SCSI);
|
|
ZFCP_DEFINE_DRIVER_ATTR(fsf, FSF);
|
|
ZFCP_DEFINE_DRIVER_ATTR(config, CONFIG);
|
|
ZFCP_DEFINE_DRIVER_ATTR(cio, CIO);
|
|
ZFCP_DEFINE_DRIVER_ATTR(qdio, QDIO);
|
|
ZFCP_DEFINE_DRIVER_ATTR(erp, ERP);
|
|
ZFCP_DEFINE_DRIVER_ATTR(fc, FC);
|
|
|
|
static ssize_t zfcp_sysfs_version_show(struct device_driver *dev,
|
|
char *buf)
|
|
{
|
|
return sprintf(buf, "%s\n", zfcp_data.driver_version);
|
|
}
|
|
|
|
static DRIVER_ATTR(version, S_IRUGO, zfcp_sysfs_version_show, NULL);
|
|
|
|
static struct attribute *zfcp_driver_attrs[] = {
|
|
&driver_attr_loglevel_other.attr,
|
|
&driver_attr_loglevel_scsi.attr,
|
|
&driver_attr_loglevel_fsf.attr,
|
|
&driver_attr_loglevel_config.attr,
|
|
&driver_attr_loglevel_cio.attr,
|
|
&driver_attr_loglevel_qdio.attr,
|
|
&driver_attr_loglevel_erp.attr,
|
|
&driver_attr_loglevel_fc.attr,
|
|
&driver_attr_version.attr,
|
|
NULL
|
|
};
|
|
|
|
static struct attribute_group zfcp_driver_attr_group = {
|
|
.attrs = zfcp_driver_attrs,
|
|
};
|
|
|
|
/**
|
|
* zfcp_sysfs_create_driver_files - create sysfs driver files
|
|
* @dev: pointer to belonging device
|
|
*
|
|
* Create all sysfs attributes of the zfcp device driver
|
|
*/
|
|
int
|
|
zfcp_sysfs_driver_create_files(struct device_driver *drv)
|
|
{
|
|
return sysfs_create_group(&drv->kobj, &zfcp_driver_attr_group);
|
|
}
|
|
|
|
/**
|
|
* zfcp_sysfs_remove_driver_files - remove sysfs driver files
|
|
* @dev: pointer to belonging device
|
|
*
|
|
* Remove all sysfs attributes of the zfcp device driver
|
|
*/
|
|
void
|
|
zfcp_sysfs_driver_remove_files(struct device_driver *drv)
|
|
{
|
|
sysfs_remove_group(&drv->kobj, &zfcp_driver_attr_group);
|
|
}
|
|
|
|
#undef ZFCP_LOG_AREA
|