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kernel/linux-rt-4.4.41/drivers/scsi/fnic/fnic_attrs.c 1.9 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
   * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
   *
   * This program is free software; you may redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
   * the Free Software Foundation; version 2 of the License.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
   * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
   * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
   * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  #include <linux/string.h>
  #include <linux/device.h>
  #include <scsi/scsi_host.h>
  #include "fnic.h"
  
  static ssize_t fnic_show_state(struct device *dev,
  			       struct device_attribute *attr, char *buf)
  {
  	struct fc_lport *lp = shost_priv(class_to_shost(dev));
  	struct fnic *fnic = lport_priv(lp);
  
  	return snprintf(buf, PAGE_SIZE, "%s
  ", fnic_state_str[fnic->state]);
  }
  
  static ssize_t fnic_show_drv_version(struct device *dev,
  				     struct device_attribute *attr, char *buf)
  {
  	return snprintf(buf, PAGE_SIZE, "%s
  ", DRV_VERSION);
  }
  
  static ssize_t fnic_show_link_state(struct device *dev,
  				    struct device_attribute *attr, char *buf)
  {
  	struct fc_lport *lp = shost_priv(class_to_shost(dev));
  
  	return snprintf(buf, PAGE_SIZE, "%s
  ", (lp->link_up)
  			? "Link Up" : "Link Down");
  }
  
  static DEVICE_ATTR(fnic_state, S_IRUGO, fnic_show_state, NULL);
  static DEVICE_ATTR(drv_version, S_IRUGO, fnic_show_drv_version, NULL);
  static DEVICE_ATTR(link_state, S_IRUGO, fnic_show_link_state, NULL);
  
  struct device_attribute *fnic_attrs[] = {
  	&dev_attr_fnic_state,
  	&dev_attr_drv_version,
  	&dev_attr_link_state,
  	NULL,
  };