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 #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
  47 static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
  48 {
  49         return -EINVAL;
  50 }
  51 static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
  52 {
  53         return -EINVAL;
  54 }
  55 static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
  56 {
  57         return -EINVAL;
  58 }
  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