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Viewing changes to arch/powerpc/platforms/pseries/eeh_sysfs.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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arch/powerpc/platforms/pseries/eeh_sysfs.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 <linux/stat.h>
 
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#include <asm/ppc-pci.h>
 
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#include <asm/pci-bridge.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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