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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2006 Intel Corp.
* Tom Long Nguyen (tom.l.nguyen@intel.com)
* Zhang Yanmin (yanmin.zhang@intel.com)
*/
#ifndef _AER_H_
#define _AER_H_
#include <linux/errno.h>
#include <linux/types.h>
#define AER_NONFATAL 0
#define AER_FATAL 1
#define AER_CORRECTABLE 2
#define DPC_FATAL 3
struct pci_dev;
struct aer_header_log_regs {
unsigned int dw0;
unsigned int dw1;
unsigned int dw2;
unsigned int dw3;
};
struct aer_capability_regs {
u32 header;
u32 uncor_status;
u32 uncor_mask;
u32 uncor_severity;
u32 cor_status;
u32 cor_mask;
u32 cap_control;
struct aer_header_log_regs header_log;
u32 root_command;
u32 root_status;
u16 cor_err_source;
u16 uncor_err_source;
};
#if defined(CONFIG_PCIEAER)
/* PCIe port driver needs this function to enable AER */
int pci_enable_pcie_error_reporting(struct pci_dev *dev);
int pci_disable_pcie_error_reporting(struct pci_dev *dev);
int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
int pci_cleanup_aer_error_status_regs(struct pci_dev *dev);
void pci_save_aer_state(struct pci_dev *dev);
void pci_restore_aer_state(struct pci_dev *dev);
#else
static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
{
return -EINVAL;
}
static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
{
return -EINVAL;
}
static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
{
return -EINVAL;
}
static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev)
{
return -EINVAL;
}
static inline void pci_save_aer_state(struct pci_dev *dev) {}
static inline void pci_restore_aer_state(struct pci_dev *dev) {}
#endif
void cper_print_aer(struct pci_dev *dev, int aer_severity,
struct aer_capability_regs *aer);
int cper_severity_to_aer(int cper_severity);
void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
int severity, struct aer_capability_regs *aer_regs);
#endif //_AER_H_
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