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