Linux kernel mirror (for testing)
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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
18struct pci_dev;
19
20struct aer_header_log_regs {
21 unsigned int dw0;
22 unsigned int dw1;
23 unsigned int dw2;
24 unsigned int dw3;
25};
26
27struct aer_capability_regs {
28 u32 header;
29 u32 uncor_status;
30 u32 uncor_mask;
31 u32 uncor_severity;
32 u32 cor_status;
33 u32 cor_mask;
34 u32 cap_control;
35 struct aer_header_log_regs header_log;
36 u32 root_command;
37 u32 root_status;
38 u16 cor_err_source;
39 u16 uncor_err_source;
40};
41
42#if defined(CONFIG_PCIEAER)
43/* PCIe port driver needs this function to enable AER */
44int pci_enable_pcie_error_reporting(struct pci_dev *dev);
45int pci_disable_pcie_error_reporting(struct pci_dev *dev);
46int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
47int pci_cleanup_aer_error_status_regs(struct pci_dev *dev);
48#else
49static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
50{
51 return -EINVAL;
52}
53static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
54{
55 return -EINVAL;
56}
57static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
58{
59 return -EINVAL;
60}
61static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev)
62{
63 return -EINVAL;
64}
65#endif
66
67void cper_print_aer(struct pci_dev *dev, int aer_severity,
68 struct aer_capability_regs *aer);
69int cper_severity_to_aer(int cper_severity);
70void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
71 int severity, struct aer_capability_regs *aer_regs);
72#endif //_AER_H_
73