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#define DPC_FATAL 3
18
19/*
20 * AER and DPC capabilities TLP Logging register sizes (PCIe r6.2, sec 7.8.4
21 * & 7.9.14).
22 */
23#define PCIE_STD_NUM_TLP_HEADERLOG 4
24#define PCIE_STD_MAX_TLP_PREFIXLOG 4
25
26struct pci_dev;
27
28struct pcie_tlp_log {
29 u32 dw[PCIE_STD_NUM_TLP_HEADERLOG];
30 u32 prefix[PCIE_STD_MAX_TLP_PREFIXLOG];
31};
32
33struct aer_capability_regs {
34 u32 header;
35 u32 uncor_status;
36 u32 uncor_mask;
37 u32 uncor_severity;
38 u32 cor_status;
39 u32 cor_mask;
40 u32 cap_control;
41 struct pcie_tlp_log header_log;
42 u32 root_command;
43 u32 root_status;
44 u16 cor_err_source;
45 u16 uncor_err_source;
46};
47
48#if defined(CONFIG_PCIEAER)
49int pci_aer_clear_nonfatal_status(struct pci_dev *dev);
50int pcie_aer_is_native(struct pci_dev *dev);
51#else
52static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev)
53{
54 return -EINVAL;
55}
56static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; }
57#endif
58
59void pci_print_aer(struct pci_dev *dev, int aer_severity,
60 struct aer_capability_regs *aer);
61int cper_severity_to_aer(int cper_severity);
62void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
63 int severity, struct aer_capability_regs *aer_regs);
64#endif //_AER_H_
65