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 9 static ssize_t 10 snic_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, "%s\n", snic->name); 17 } 18 19 static ssize_t 20 snic_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, "%s\n", 27 snic_state_str[snic_get_state(snic)]); 28 } 29 30 static ssize_t 31 snic_show_drv_version(struct device *dev, 32 struct device_attribute *attr, 33 char *buf) 34 { 35 return snprintf(buf, PAGE_SIZE, "%s\n", SNIC_DRV_VERSION); 36 } 37 38 static ssize_t 39 snic_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(snic->vdev); 47 48 return snprintf(buf, PAGE_SIZE, "%s\n", 49 (snic->link_status) ? "Link Up" : "Link Down"); 50 } 51 52 static DEVICE_ATTR(snic_sym_name, S_IRUGO, snic_show_sym_name, NULL); 53 static DEVICE_ATTR(snic_state, S_IRUGO, snic_show_state, NULL); 54 static DEVICE_ATTR(drv_version, S_IRUGO, snic_show_drv_version, NULL); 55 static DEVICE_ATTR(link_state, S_IRUGO, snic_show_link_state, NULL); 56 57 static 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 65 static const struct attribute_group snic_host_attr_group = { 66 .attrs = snic_host_attrs 67 }; 68 69 const struct attribute_group *snic_host_groups[] = { 70 &snic_host_attr_group, 71 NULL 72 }; 73