1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright (C) 2006 Intel Corp. 4 * Tom Long Nguyen (tom.l.nguyen@intel.com) 5 * Zhang Yanmin (yanmin.zhang@intel.com) 6 */ 7 8#ifndef _AER_H_ 9#define _AER_H_ 10 11#include <linux/errno.h> 12#include <linux/types.h> 13 14#define AER_NONFATAL 0 15#define AER_FATAL 1 16#define AER_CORRECTABLE 2 17#define DPC_FATAL 3 18 19struct pci_dev; 20 21struct pcie_tlp_log { 22 u32 dw[4]; 23}; 24 25struct aer_capability_regs { 26 u32 header; 27 u32 uncor_status; 28 u32 uncor_mask; 29 u32 uncor_severity; 30 u32 cor_status; 31 u32 cor_mask; 32 u32 cap_control; 33 struct pcie_tlp_log header_log; 34 u32 root_command; 35 u32 root_status; 36 u16 cor_err_source; 37 u16 uncor_err_source; 38}; 39 40int pcie_read_tlp_log(struct pci_dev *dev, int where, struct pcie_tlp_log *log); 41 42#if defined(CONFIG_PCIEAER) 43int pci_aer_clear_nonfatal_status(struct pci_dev *dev); 44int pcie_aer_is_native(struct pci_dev *dev); 45#else 46static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev) 47{ 48 return -EINVAL; 49} 50static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; } 51#endif 52 53void pci_print_aer(struct pci_dev *dev, int aer_severity, 54 struct aer_capability_regs *aer); 55int cper_severity_to_aer(int cper_severity); 56void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, 57 int severity, struct aer_capability_regs *aer_regs); 58#endif //_AER_H_ 59 60