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 snprintf(buf, PAGE_SIZE, fmt: "%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 snprintf(buf, PAGE_SIZE, fmt: "%s\n",
27 snic_state_str[snic_get_state(snic)]);
28}
29
30static ssize_t
31snic_show_drv_version(struct device *dev,
32 struct device_attribute *attr,
33 char *buf)
34{
35 return snprintf(buf, PAGE_SIZE, fmt: "%s\n", SNIC_DRV_VERSION);
36}
37
38static ssize_t
39snic_show_link_state(struct device *dev,
40 struct device_attribute *attr,
41 char *buf)
42{
43 struct snic *snic = shost_priv(class_to_shost(dev));
44
45 if (snic->config.xpt_type == SNIC_DAS)
46 snic->link_status = svnic_dev_link_status(vdev: snic->vdev);
47
48 return snprintf(buf, PAGE_SIZE, fmt: "%s\n",
49 (snic->link_status) ? "Link Up" : "Link Down");
50}
51
52static DEVICE_ATTR(snic_sym_name, S_IRUGO, snic_show_sym_name, NULL);
53static DEVICE_ATTR(snic_state, S_IRUGO, snic_show_state, NULL);
54static DEVICE_ATTR(drv_version, S_IRUGO, snic_show_drv_version, NULL);
55static DEVICE_ATTR(link_state, S_IRUGO, snic_show_link_state, NULL);
56
57static struct attribute *snic_host_attrs[] = {
58 &dev_attr_snic_sym_name.attr,
59 &dev_attr_snic_state.attr,
60 &dev_attr_drv_version.attr,
61 &dev_attr_link_state.attr,
62 NULL,
63};
64
65static const struct attribute_group snic_host_attr_group = {
66 .attrs = snic_host_attrs
67};
68
69const struct attribute_group *snic_host_groups[] = {
70 &snic_host_attr_group,
71 NULL
72};
73

source code of linux/drivers/scsi/snic/snic_attrs.c