snic_attrs.c

 1// SPDX-License-Identifier: GPL-2.0-only
 2// Copyright 2014 Cisco Systems, Inc.  All rights reserved.
 3
 4#include <linux/string.h>
 5#include <linux/device.h>
 6
 7#include "snic.h"
 8
 9static ssize_t
10snic_show_sym_name(struct device *dev,
11		struct device_attribute *attr,
12		char *buf)
13{
14	struct snic *snic = shost_priv(class_to_shost(dev));
15
16	return sysfs_emit(buf, "%s\n", snic->name);
17}
18
19static ssize_t
20snic_show_state(struct device *dev,
21		struct device_attribute *attr,
22		char *buf)
23{
24	struct snic *snic = shost_priv(class_to_shost(dev));
25
26	return sysfs_emit(buf, "%s\n", snic_state_str[snic_get_state(snic)]);
27}
28
29static ssize_t
30snic_show_drv_version(struct device *dev,
31		      struct device_attribute *attr,
32		      char *buf)
33{
34	return sysfs_emit(buf, "%s\n", SNIC_DRV_VERSION);
35}
36
37static ssize_t
38snic_show_link_state(struct device *dev,
39		     struct device_attribute *attr,
40		     char *buf)
41{
42	struct snic *snic = shost_priv(class_to_shost(dev));
43
44	if (snic->config.xpt_type == SNIC_DAS)
45		snic->link_status = svnic_dev_link_status(snic->vdev);
46
47	return sysfs_emit(buf, "%s\n",
48			  (snic->link_status) ? "Link Up" : "Link Down");
49}
50
51static DEVICE_ATTR(snic_sym_name, S_IRUGO, snic_show_sym_name, NULL);
52static DEVICE_ATTR(snic_state, S_IRUGO, snic_show_state, NULL);
53static DEVICE_ATTR(drv_version, S_IRUGO, snic_show_drv_version, NULL);
54static DEVICE_ATTR(link_state, S_IRUGO, snic_show_link_state, NULL);
55
56static struct attribute *snic_host_attrs[] = {
57	&dev_attr_snic_sym_name.attr,
58	&dev_attr_snic_state.attr,
59	&dev_attr_drv_version.attr,
60	&dev_attr_link_state.attr,
61	NULL,
62};
63
64static const struct attribute_group snic_host_attr_group = {
65	.attrs = snic_host_attrs
66};
67
68const struct attribute_group *snic_host_groups[] = {
69	&snic_host_attr_group,
70	NULL
71};