Jan Glauber | 1e8da95 | 2012-11-29 14:36:55 +0100 | [diff] [blame] | 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 | |
| 15 | static ssize_t show_fid(struct device *dev, struct device_attribute *attr, |
| 16 | char *buf) |
| 17 | { |
| 18 | struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); |
| 19 | |
| 20 | sprintf(buf, "0x%08x\n", zdev->fid); |
| 21 | return strlen(buf); |
| 22 | } |
| 23 | static DEVICE_ATTR(function_id, S_IRUGO, show_fid, NULL); |
| 24 | |
| 25 | static ssize_t show_fh(struct device *dev, struct device_attribute *attr, |
| 26 | char *buf) |
| 27 | { |
| 28 | struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); |
| 29 | |
| 30 | sprintf(buf, "0x%08x\n", zdev->fh); |
| 31 | return strlen(buf); |
| 32 | } |
| 33 | static DEVICE_ATTR(function_handle, S_IRUGO, show_fh, NULL); |
| 34 | |
| 35 | static ssize_t show_pchid(struct device *dev, struct device_attribute *attr, |
| 36 | char *buf) |
| 37 | { |
| 38 | struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); |
| 39 | |
| 40 | sprintf(buf, "0x%04x\n", zdev->pchid); |
| 41 | return strlen(buf); |
| 42 | } |
| 43 | static DEVICE_ATTR(pchid, S_IRUGO, show_pchid, NULL); |
| 44 | |
| 45 | static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr, |
| 46 | char *buf) |
| 47 | { |
| 48 | struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); |
| 49 | |
| 50 | sprintf(buf, "0x%02x\n", zdev->pfgid); |
| 51 | return strlen(buf); |
| 52 | } |
| 53 | static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); |
| 54 | |
| 55 | static struct device_attribute *zpci_dev_attrs[] = { |
| 56 | &dev_attr_function_id, |
| 57 | &dev_attr_function_handle, |
| 58 | &dev_attr_pchid, |
| 59 | &dev_attr_pfgid, |
| 60 | NULL, |
| 61 | }; |
| 62 | |
| 63 | int zpci_sysfs_add_device(struct device *dev) |
| 64 | { |
| 65 | int i, rc = 0; |
| 66 | |
| 67 | for (i = 0; zpci_dev_attrs[i]; i++) { |
| 68 | rc = device_create_file(dev, zpci_dev_attrs[i]); |
| 69 | if (rc) |
| 70 | goto error; |
| 71 | } |
| 72 | return 0; |
| 73 | |
| 74 | error: |
| 75 | while (--i >= 0) |
| 76 | device_remove_file(dev, zpci_dev_attrs[i]); |
| 77 | return rc; |
| 78 | } |
| 79 | |
| 80 | void zpci_sysfs_remove_device(struct device *dev) |
| 81 | { |
| 82 | int i; |
| 83 | |
| 84 | for (i = 0; zpci_dev_attrs[i]; i++) |
| 85 | device_remove_file(dev, zpci_dev_attrs[i]); |
| 86 | } |