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(to_pci_dev(dev)); 19 20 return sprintf(buf, "0x%08x\n", zdev->fid); 21 } 22 static DEVICE_ATTR(function_id, S_IRUGO, show_fid, NULL); 23 24 static 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 } 31 static DEVICE_ATTR(function_handle, S_IRUGO, show_fh, NULL); 32 33 static 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 } 40 static DEVICE_ATTR(pchid, S_IRUGO, show_pchid, NULL); 41 42 static 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 } 49 static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); 50 51 static 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 59 int 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 70 error: 71 while (--i >= 0) 72 device_remove_file(dev, zpci_dev_attrs[i]); 73 return rc; 74 } 75 76 void 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