| /* |
| * Sysfs entries for PCI Error Recovery for PAPR-compliant platform. |
| * Copyright IBM Corporation 2007 |
| * Copyright Linas Vepstas <linas@austin.ibm.com> 2007 |
| * |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or (at |
| * your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
| * NON INFRINGEMENT. See the GNU General Public License for more |
| * details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * Send comments and feedback to Linas Vepstas <linas@austin.ibm.com> |
| */ |
| #include <linux/pci.h> |
| #include <asm/ppc-pci.h> |
| #include <asm/pci-bridge.h> |
| |
| /** |
| * EEH_SHOW_ATTR -- create sysfs entry for eeh statistic |
| * @_name: name of file in sysfs directory |
| * @_memb: name of member in struct pci_dn to access |
| * @_format: printf format for display |
| * |
| * All of the attributes look very similar, so just |
| * auto-gen a cut-n-paste routine to display them. |
| */ |
| #define EEH_SHOW_ATTR(_name,_memb,_format) \ |
| static ssize_t eeh_show_##_name(struct device *dev, \ |
| struct device_attribute *attr, char *buf) \ |
| { \ |
| struct pci_dev *pdev = to_pci_dev(dev); \ |
| struct device_node *dn = pci_device_to_OF_node(pdev); \ |
| struct pci_dn *pdn; \ |
| \ |
| if (!dn || PCI_DN(dn) == NULL) \ |
| return 0; \ |
| \ |
| pdn = PCI_DN(dn); \ |
| return sprintf(buf, _format "\n", pdn->_memb); \ |
| } \ |
| static DEVICE_ATTR(_name, S_IRUGO, eeh_show_##_name, NULL); |
| |
| |
| EEH_SHOW_ATTR(eeh_mode, eeh_mode, "0x%x"); |
| EEH_SHOW_ATTR(eeh_config_addr, eeh_config_addr, "0x%x"); |
| EEH_SHOW_ATTR(eeh_pe_config_addr, eeh_pe_config_addr, "0x%x"); |
| EEH_SHOW_ATTR(eeh_check_count, eeh_check_count, "%d"); |
| EEH_SHOW_ATTR(eeh_freeze_count, eeh_freeze_count, "%d"); |
| EEH_SHOW_ATTR(eeh_false_positives, eeh_false_positives, "%d"); |
| |
| void eeh_sysfs_add_device(struct pci_dev *pdev) |
| { |
| int rc=0; |
| |
| rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode); |
| rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr); |
| rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); |
| rc += device_create_file(&pdev->dev, &dev_attr_eeh_check_count); |
| rc += device_create_file(&pdev->dev, &dev_attr_eeh_false_positives); |
| rc += device_create_file(&pdev->dev, &dev_attr_eeh_freeze_count); |
| |
| if (rc) |
| printk(KERN_WARNING "EEH: Unable to create sysfs entries\n"); |
| } |
| |
| void eeh_sysfs_remove_device(struct pci_dev *pdev) |
| { |
| device_remove_file(&pdev->dev, &dev_attr_eeh_mode); |
| device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr); |
| device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); |
| device_remove_file(&pdev->dev, &dev_attr_eeh_check_count); |
| device_remove_file(&pdev->dev, &dev_attr_eeh_false_positives); |
| device_remove_file(&pdev->dev, &dev_attr_eeh_freeze_count); |
| } |
| |
