linux/drivers/scsi/snic/snic_attrs.c

78 lines
2.2 KiB
C

/*
* Copyright 2014 Cisco Systems, Inc. All rights reserved.
*
* This program is free software; you may redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/string.h>
#include <linux/device.h>
#include "snic.h"
static ssize_t
snic_show_sym_name(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct snic *snic = shost_priv(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%s\n", snic->name);
}
static ssize_t
snic_show_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct snic *snic = shost_priv(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%s\n",
snic_state_str[snic_get_state(snic)]);
}
static ssize_t
snic_show_drv_version(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", SNIC_DRV_VERSION);
}
static ssize_t
snic_show_link_state(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct snic *snic = shost_priv(class_to_shost(dev));
if (snic->config.xpt_type == SNIC_DAS)
snic->link_status = svnic_dev_link_status(snic->vdev);
return snprintf(buf, PAGE_SIZE, "%s\n",
(snic->link_status) ? "Link Up" : "Link Down");
}
static DEVICE_ATTR(snic_sym_name, S_IRUGO, snic_show_sym_name, NULL);
static DEVICE_ATTR(snic_state, S_IRUGO, snic_show_state, NULL);
static DEVICE_ATTR(drv_version, S_IRUGO, snic_show_drv_version, NULL);
static DEVICE_ATTR(link_state, S_IRUGO, snic_show_link_state, NULL);
struct device_attribute *snic_attrs[] = {
&dev_attr_snic_sym_name,
&dev_attr_snic_state,
&dev_attr_drv_version,
&dev_attr_link_state,
NULL,
};