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 struct pci_dev;
20
21 struct pcie_tlp_log {
22 u32 dw[4];
23 };
24
25 struct 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
40 int pcie_read_tlp_log(struct pci_dev *dev, int where, struct pcie_tlp_log *log);
41
42 #if defined(CONFIG_PCIEAER)
43 int pci_aer_clear_nonfatal_status(struct pci_dev *dev);
44 int pcie_aer_is_native(struct pci_dev *dev);
45 #else
46 static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev)
47 {
48 return -EINVAL;
49 }
50 static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; }
51 #endif
52
53 void pci_print_aer(struct pci_dev *dev, int aer_severity,
54 struct aer_capability_regs *aer);
55 int cper_severity_to_aer(int cper_severity);
56 void 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
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