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