include/linux/aer.h

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