LXR linux/drivers/scsi/fnic/fnic

   1/*
   2 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
   3 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   4 *
   5 * This program is free software; you may redistribute it and/or modify
   6 * it under the terms of the GNU General Public License as published by
   7 * the Free Software Foundation; version 2 of the License.
   8 *
   9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  16 * SOFTWARE.
  17 */
  18#include <linux/string.h>
  19#include <linux/device.h>
  20#include <scsi/scsi_host.h>
  21#include "fnic.h"
  22
  23static ssize_t fnic_show_state(struct device *dev,
  24                               struct device_attribute *attr, char *buf)
  25{
  26        struct fc_lport *lp = shost_priv(class_to_shost(dev));
  27        struct fnic *fnic = lport_priv(lp);
  28
  29        return snprintf(buf, PAGE_SIZE, "%s\n", fnic_state_str[fnic->state]);
  30}
  31
  32static ssize_t fnic_show_drv_version(struct device *dev,
  33                                     struct device_attribute *attr, char *buf)
  34{
  35        return snprintf(buf, PAGE_SIZE, "%s\n", DRV_VERSION);
  36}
  37
  38static ssize_t fnic_show_link_state(struct device *dev,
  39                                    struct device_attribute *attr, char *buf)
  40{
  41        struct fc_lport *lp = shost_priv(class_to_shost(dev));
  42
  43        return snprintf(buf, PAGE_SIZE, "%s\n", (lp->link_up)
  44                        ? "Link Up" : "Link Down");
  45}
  46
  47static DEVICE_ATTR(fnic_state, S_IRUGO, fnic_show_state, NULL);
  48static DEVICE_ATTR(drv_version, S_IRUGO, fnic_show_drv_version, NULL);
  49static DEVICE_ATTR(link_state, S_IRUGO, fnic_show_link_state, NULL);
  50
  51struct device_attribute *fnic_attrs[] = {
  52        &dev_attr_fnic_state,
  53        &dev_attr_drv_version,
  54        &dev_attr_link_state,
  55        NULL,
  56};
  57