| 1 | /* SPDX-License-Identifier: GPL-2.0 */ | 
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| 2 | /* | 
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| 3 | * Copyright (C) 2006 Intel Corp. | 
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| 4 | *     Tom Long Nguyen (tom.l.nguyen@intel.com) | 
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| 5 | *     Zhang Yanmin (yanmin.zhang@intel.com) | 
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| 6 | */ | 
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| 7 |  | 
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| 8 | #ifndef _AER_H_ | 
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| 9 | #define _AER_H_ | 
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| 10 |  | 
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| 11 | #include <linux/errno.h> | 
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| 12 | #include <linux/types.h> | 
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| 13 |  | 
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| 14 | #define AER_NONFATAL			0 | 
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| 15 | #define AER_FATAL			1 | 
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| 16 | #define AER_CORRECTABLE			2 | 
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| 17 | #define DPC_FATAL			3 | 
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| 18 |  | 
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| 19 | /* | 
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| 20 | * AER and DPC capabilities TLP Logging register sizes (PCIe r6.2, sec 7.8.4 | 
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| 21 | * & 7.9.14). | 
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| 22 | */ | 
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| 23 | #define      4 | 
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| 24 | #define PCIE_STD_MAX_TLP_PREFIXLOG     4 | 
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| 25 | #define 	(PCIE_STD_NUM_TLP_HEADERLOG + 10) | 
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| 26 |  | 
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| 27 | struct pci_dev; | 
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| 28 |  | 
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| 29 | struct pcie_tlp_log { | 
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| 30 | union { | 
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| 31 | u32 dw[PCIE_STD_MAX_TLP_HEADERLOG]; | 
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| 32 | struct { | 
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| 33 | u32 _do_not_use[PCIE_STD_NUM_TLP_HEADERLOG]; | 
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| 34 | u32 prefix[PCIE_STD_MAX_TLP_PREFIXLOG]; | 
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| 35 | }; | 
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| 36 | }; | 
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| 37 | u8 ;		/* Length of the Logged TLP Header in DWORDs */ | 
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| 38 | bool flit;		/* TLP was logged when in Flit mode */ | 
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| 39 | }; | 
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| 40 |  | 
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| 41 | struct aer_capability_regs { | 
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| 42 | u32 ; | 
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| 43 | u32 uncor_status; | 
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| 44 | u32 uncor_mask; | 
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| 45 | u32 uncor_severity; | 
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| 46 | u32 cor_status; | 
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| 47 | u32 cor_mask; | 
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| 48 | u32 cap_control; | 
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| 49 | struct pcie_tlp_log ; | 
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| 50 | u32 root_command; | 
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| 51 | u32 root_status; | 
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| 52 | u16 cor_err_source; | 
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| 53 | u16 uncor_err_source; | 
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| 54 | }; | 
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| 55 |  | 
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| 56 | #if defined(CONFIG_PCIEAER) | 
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| 57 | int pci_aer_clear_nonfatal_status(struct pci_dev *dev); | 
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| 58 | int pcie_aer_is_native(struct pci_dev *dev); | 
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| 59 | #else | 
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| 60 | static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev) | 
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| 61 | { | 
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| 62 | return -EINVAL; | 
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| 63 | } | 
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| 64 | static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; } | 
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| 65 | #endif | 
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| 66 |  | 
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| 67 | void pci_print_aer(struct pci_dev *dev, int aer_severity, | 
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| 68 | struct aer_capability_regs *aer); | 
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| 69 | int cper_severity_to_aer(int cper_severity); | 
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| 70 | void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, | 
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| 71 | int severity, struct aer_capability_regs *aer_regs); | 
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| 72 | #endif //_AER_H_ | 
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| 73 |  | 
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| 74 |  | 
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