1 /* 2 * Copyright 2014 Cisco Systems, Inc. All rights reserved. 3 * 4 * This program is free software; you may redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; version 2 of the License. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 9 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 10 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 11 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 12 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 13 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 14 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 15 * SOFTWARE. 16 */ 17 18 #include <linux/string.h> 19 #include <linux/device.h> 20 21 #include "snic.h" 22 23 static ssize_t 24 snic_show_sym_name(struct device *dev, 25 struct device_attribute *attr, 26 char *buf) 27 { 28 struct snic *snic = shost_priv(class_to_shost(dev)); 29 30 return snprintf(buf, PAGE_SIZE, "%s\n", snic->name); 31 } 32 33 static ssize_t 34 snic_show_state(struct device *dev, 35 struct device_attribute *attr, 36 char *buf) 37 { 38 struct snic *snic = shost_priv(class_to_shost(dev)); 39 40 return snprintf(buf, PAGE_SIZE, "%s\n", 41 snic_state_str[snic_get_state(snic)]); 42 } 43 44 static ssize_t 45 snic_show_drv_version(struct device *dev, 46 struct device_attribute *attr, 47 char *buf) 48 { 49 return snprintf(buf, PAGE_SIZE, "%s\n", SNIC_DRV_VERSION); 50 } 51 52 static ssize_t 53 snic_show_link_state(struct device *dev, 54 struct device_attribute *attr, 55 char *buf) 56 { 57 struct snic *snic = shost_priv(class_to_shost(dev)); 58 59 if (snic->config.xpt_type == SNIC_DAS) 60 snic->link_status = svnic_dev_link_status(snic->vdev); 61 62 return snprintf(buf, PAGE_SIZE, "%s\n", 63 (snic->link_status) ? "Link Up" : "Link Down"); 64 } 65 66 static DEVICE_ATTR(snic_sym_name, S_IRUGO, snic_show_sym_name, NULL); 67 static DEVICE_ATTR(snic_state, S_IRUGO, snic_show_state, NULL); 68 static DEVICE_ATTR(drv_version, S_IRUGO, snic_show_drv_version, NULL); 69 static DEVICE_ATTR(link_state, S_IRUGO, snic_show_link_state, NULL); 70 71 static struct attribute *snic_host_attrs[] = { 72 &dev_attr_snic_sym_name.attr, 73 &dev_attr_snic_state.attr, 74 &dev_attr_drv_version.attr, 75 &dev_attr_link_state.attr, 76 NULL, 77 }; 78 79 static const struct attribute_group snic_host_attr_group = { 80 .attrs = snic_host_attrs 81 }; 82 83 const struct attribute_group *snic_host_groups[] = { 84 &snic_host_attr_group, 85 NULL 86 }; 87