1 /*
2  * Copyright (C) 2006 Intel Corp.
3  *     Tom Long Nguyen (tom.l.nguyen@intel.com)
4  *     Zhang Yanmin (yanmin.zhang@intel.com)
5  */
6 
7 #ifndef _AER_H_
8 #define _AER_H_
9 
10 #include <linux/types.h>
11 
12 #define AER_NONFATAL			0
13 #define AER_FATAL			1
14 #define AER_CORRECTABLE			2
15 
16 struct pci_dev;
17 
18 struct aer_header_log_regs {
19 	unsigned int dw0;
20 	unsigned int dw1;
21 	unsigned int dw2;
22 	unsigned int dw3;
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 aer_header_log_regs header_log;
34 	u32 root_command;
35 	u32 root_status;
36 	u16 cor_err_source;
37 	u16 uncor_err_source;
38 };
39 
40 #if defined(CONFIG_PCIEAER)
41 /* pci-e port driver needs this function to enable aer */
42 int pci_enable_pcie_error_reporting(struct pci_dev *dev);
43 int pci_disable_pcie_error_reporting(struct pci_dev *dev);
44 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
45 int pci_cleanup_aer_error_status_regs(struct pci_dev *dev);
46 #else
pci_enable_pcie_error_reporting(struct pci_dev * dev)47 static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
48 {
49 	return -EINVAL;
50 }
pci_disable_pcie_error_reporting(struct pci_dev * dev)51 static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
52 {
53 	return -EINVAL;
54 }
pci_cleanup_aer_uncorrect_error_status(struct pci_dev * dev)55 static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
56 {
57 	return -EINVAL;
58 }
pci_cleanup_aer_error_status_regs(struct pci_dev * dev)59 static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev)
60 {
61 	return -EINVAL;
62 }
63 #endif
64 
65 void cper_print_aer(struct pci_dev *dev, int cper_severity,
66 		    struct aer_capability_regs *aer);
67 int cper_severity_to_aer(int cper_severity);
68 void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
69 		       int severity,
70 		       struct aer_capability_regs *aer_regs);
71 #endif //_AER_H_
72 
73