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1d5210008b
This patch will provide a more reliable and easy way for user-space applications to have access to AER logs rather than reading them from the message buffer. It also provides a way to notify user-space when an AER event occurs. The aer driver is updated to generate a trace event of function 'aer_event' when a PCIe error is reported over the AER interface. The trace event was added to both the interrupt based aer path and the firmware first path. Signed-off-by: Lance Ortiz <lance.ortiz@hp.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Boris Petkov <bp@alien8.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/*
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* Copyright (C) 2006 Intel Corp.
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* Tom Long Nguyen (tom.l.nguyen@intel.com)
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* Zhang Yanmin (yanmin.zhang@intel.com)
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*/
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#ifndef _AER_H_
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#define _AER_H_
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struct aer_header_log_regs {
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unsigned int dw0;
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unsigned int dw1;
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unsigned int dw2;
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unsigned int dw3;
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};
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struct aer_capability_regs {
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u32 header;
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u32 uncor_status;
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u32 uncor_mask;
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u32 uncor_severity;
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u32 cor_status;
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u32 cor_mask;
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u32 cap_control;
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struct aer_header_log_regs header_log;
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u32 root_command;
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u32 root_status;
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u16 cor_err_source;
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u16 uncor_err_source;
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};
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#if defined(CONFIG_PCIEAER)
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/* pci-e port driver needs this function to enable aer */
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extern int pci_enable_pcie_error_reporting(struct pci_dev *dev);
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extern int pci_disable_pcie_error_reporting(struct pci_dev *dev);
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extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
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#else
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static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
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{
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return -EINVAL;
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}
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static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
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{
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return -EINVAL;
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}
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static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
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{
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return -EINVAL;
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}
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#endif
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extern void cper_print_aer(const char *prefix, struct pci_dev *dev,
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int cper_severity, struct aer_capability_regs *aer);
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extern int cper_severity_to_aer(int cper_severity);
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extern void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
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int severity);
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#endif //_AER_H_
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