diff options
Diffstat (limited to 'include/linux/aer.h')
| -rw-r--r-- | include/linux/aer.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/include/linux/aer.h b/include/linux/aer.h new file mode 100644 index 000000000..97f64ba1b --- /dev/null +++ b/include/linux/aer.h @@ -0,0 +1,73 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2006 Intel Corp. + * Tom Long Nguyen (tom.l.nguyen@intel.com) + * Zhang Yanmin (yanmin.zhang@intel.com) + */ + +#ifndef _AER_H_ +#define _AER_H_ + +#include <linux/errno.h> +#include <linux/types.h> + +#define AER_NONFATAL 0 +#define AER_FATAL 1 +#define AER_CORRECTABLE 2 +#define DPC_FATAL 3 + +struct pci_dev; + +struct aer_header_log_regs { + unsigned int dw0; + unsigned int dw1; + unsigned int dw2; + unsigned int dw3; +}; + +struct aer_capability_regs { + u32 header; + u32 uncor_status; + u32 uncor_mask; + u32 uncor_severity; + u32 cor_status; + u32 cor_mask; + u32 cap_control; + struct aer_header_log_regs header_log; + u32 root_command; + u32 root_status; + u16 cor_err_source; + u16 uncor_err_source; +}; + +#if defined(CONFIG_PCIEAER) +/* PCIe port driver needs this function to enable AER */ +int pci_enable_pcie_error_reporting(struct pci_dev *dev); +int pci_disable_pcie_error_reporting(struct pci_dev *dev); +int pci_aer_clear_nonfatal_status(struct pci_dev *dev); +void pci_save_aer_state(struct pci_dev *dev); +void pci_restore_aer_state(struct pci_dev *dev); +#else +static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev) +{ + return -EINVAL; +} +static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev) +{ + return -EINVAL; +} +static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev) +{ + return -EINVAL; +} +static inline void pci_save_aer_state(struct pci_dev *dev) {} +static inline void pci_restore_aer_state(struct pci_dev *dev) {} +#endif + +void cper_print_aer(struct pci_dev *dev, int aer_severity, + struct aer_capability_regs *aer); +int cper_severity_to_aer(int cper_severity); +void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn, + int severity, struct aer_capability_regs *aer_regs); +#endif //_AER_H_ + |