fnic_attrs.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
 4 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 5 */
 6#include <linux/string.h>
 7#include <linux/device.h>
 8#include <scsi/scsi_host.h>
 9#include "fnic.h"
10
11static ssize_t fnic_show_state(struct device *dev,
12			       struct device_attribute *attr, char *buf)
13{
14	struct fnic *fnic =
15		*((struct fnic **) shost_priv(class_to_shost(dev)));
16
17	return sysfs_emit(buf, "%s\n", fnic_state_str[fnic->state]);
18}
19
20static ssize_t fnic_show_drv_version(struct device *dev,
21				     struct device_attribute *attr, char *buf)
22{
23	return sysfs_emit(buf, "%s\n", DRV_VERSION);
24}
25
26static ssize_t fnic_show_link_state(struct device *dev,
27				    struct device_attribute *attr, char *buf)
28{
29	struct fnic *fnic =
30		*((struct fnic **) shost_priv(class_to_shost(dev)));
31
32	return sysfs_emit(buf, "%s\n",
33					  ((fnic->iport.state != FNIC_IPORT_STATE_INIT) &&
34					   (fnic->iport.state != FNIC_IPORT_STATE_LINK_WAIT)) ?
35					  "Link Up" : "Link Down");
36}
37
38static DEVICE_ATTR(fnic_state, S_IRUGO, fnic_show_state, NULL);
39static DEVICE_ATTR(drv_version, S_IRUGO, fnic_show_drv_version, NULL);
40static DEVICE_ATTR(link_state, S_IRUGO, fnic_show_link_state, NULL);
41
42static struct attribute *fnic_host_attrs[] = {
43	&dev_attr_fnic_state.attr,
44	&dev_attr_drv_version.attr,
45	&dev_attr_link_state.attr,
46	NULL,
47};
48
49static const struct attribute_group fnic_host_attr_group = {
50	.attrs = fnic_host_attrs
51};
52
53const struct attribute_group *fnic_host_groups[] = {
54	&fnic_host_attr_group,
55	NULL
56};