88 lines
3.5 KiB
C
88 lines
3.5 KiB
C
/*
|
|
* 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>
|
|
#include <linux/kobject.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);
|
|
}
|
|
|