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/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
  48 static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
  49 {
  50         return -EINVAL;
  51 }
  52 static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
  53 {
  54         return -EINVAL;
  55 }
  56 static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
  57 {
  58         return -EINVAL;
  59 }
  60 static 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