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/errno.h> 11 #include <linux/types.h> 12 13 #define AER_NONFATAL 0 14 #define AER_FATAL 1 15 #define AER_CORRECTABLE 2 16 17 struct pci_dev; 18 19 struct aer_header_log_regs { 20 unsigned int dw0; 21 unsigned int dw1; 22 unsigned int dw2; 23 unsigned int dw3; 24 }; 25 26 struct aer_capability_regs { 27 u32 header; 28 u32 uncor_status; 29 u32 uncor_mask; 30 u32 uncor_severity; 31 u32 cor_status; 32 u32 cor_mask; 33 u32 cap_control; 34 struct aer_header_log_regs header_log; 35 u32 root_command; 36 u32 root_status; 37 u16 cor_err_source; 38 u16 uncor_err_source; 39 }; 40 41 #if defined(CONFIG_PCIEAER) 42 /* pci-e port driver needs this function to enable aer */ 43 int pci_enable_pcie_error_reporting(struct pci_dev *dev); 44 int pci_disable_pcie_error_reporting(struct pci_dev *dev); 45 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev); 46 int pci_cleanup_aer_error_status_regs(struct pci_dev *dev); 47 #else pci_enable_pcie_error_reporting(struct pci_dev * dev)48static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) 49 { 50 return -EINVAL; 51 } pci_disable_pcie_error_reporting(struct pci_dev * dev)52static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev) 53 { 54 return -EINVAL; 55 } pci_cleanup_aer_uncorrect_error_status(struct pci_dev * dev)56static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) 57 { 58 return -EINVAL; 59 } pci_cleanup_aer_error_status_regs(struct pci_dev * dev)60static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev) 61 { 62 return -EINVAL; 63 } 64 #endif 65 66 void cper_print_aer(struct pci_dev *dev, int aer_severity, 67 struct aer_capability_regs *aer); 68 int cper_severity_to_aer(int cper_severity); 69 void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, 70 int severity, 71 struct aer_capability_regs *aer_regs); 72 #endif //_AER_H_ 73 74