LXR linux/arch/s390/pci/pci

   1/*
   2 * Copyright IBM Corp. 2012
   3 *
   4 * Author(s):
   5 *   Jan Glauber <jang@linux.vnet.ibm.com>
   6 */
   7
   8#define COMPONENT "zPCI"
   9#define pr_fmt(fmt) COMPONENT ": " fmt
  10
  11#include <linux/kernel.h>
  12#include <linux/stat.h>
  13#include <linux/pci.h>
  14
  15static ssize_t show_fid(struct device *dev, struct device_attribute *attr,
  16                        char *buf)
  17{
  18        struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
  19
  20        return sprintf(buf, "0x%08x\n", zdev->fid);
  21}
  22static DEVICE_ATTR(function_id, S_IRUGO, show_fid, NULL);
  23
  24static ssize_t show_fh(struct device *dev, struct device_attribute *attr,
  25                       char *buf)
  26{
  27        struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
  28
  29        return sprintf(buf, "0x%08x\n", zdev->fh);
  30}
  31static DEVICE_ATTR(function_handle, S_IRUGO, show_fh, NULL);
  32
  33static ssize_t show_pchid(struct device *dev, struct device_attribute *attr,
  34                          char *buf)
  35{
  36        struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
  37
  38        return sprintf(buf, "0x%04x\n", zdev->pchid);
  39}
  40static DEVICE_ATTR(pchid, S_IRUGO, show_pchid, NULL);
  41
  42static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr,
  43                          char *buf)
  44{
  45        struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
  46
  47        return sprintf(buf, "0x%02x\n", zdev->pfgid);
  48}
  49static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL);
  50
  51static struct device_attribute *zpci_dev_attrs[] = {
  52        &dev_attr_function_id,
  53        &dev_attr_function_handle,
  54        &dev_attr_pchid,
  55        &dev_attr_pfgid,
  56        NULL,
  57};
  58
  59int zpci_sysfs_add_device(struct device *dev)
  60{
  61        int i, rc = 0;
  62
  63        for (i = 0; zpci_dev_attrs[i]; i++) {
  64                rc = device_create_file(dev, zpci_dev_attrs[i]);
  65                if (rc)
  66                        goto error;
  67        }
  68        return 0;
  69
  70error:
  71        while (--i >= 0)
  72                device_remove_file(dev, zpci_dev_attrs[i]);
  73        return rc;
  74}
  75
  76void zpci_sysfs_remove_device(struct device *dev)
  77{
  78        int i;
  79
  80        for (i = 0; zpci_dev_attrs[i]; i++)
  81                device_remove_file(dev, zpci_dev_attrs[i]);
  82}
  83