| /* |
| * Copyright (C) 2006 Intel Corp. |
| * Tom Long Nguyen (tom.l.nguyen@intel.com) |
| * Zhang Yanmin (yanmin.zhang@intel.com) |
| * |
| */ |
| |
| #ifndef _AERDRV_H_ |
| #define _AERDRV_H_ |
| |
| #include <linux/workqueue.h> |
| #include <linux/pcieport_if.h> |
| #include <linux/aer.h> |
| #include <linux/interrupt.h> |
| |
| #define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \ |
| PCI_EXP_RTCTL_SENFEE| \ |
| PCI_EXP_RTCTL_SEFEE) |
| #define ROOT_PORT_INTR_ON_MESG_MASK (PCI_ERR_ROOT_CMD_COR_EN| \ |
| PCI_ERR_ROOT_CMD_NONFATAL_EN| \ |
| PCI_ERR_ROOT_CMD_FATAL_EN) |
| #define ERR_COR_ID(d) (d & 0xffff) |
| #define ERR_UNCOR_ID(d) (d >> 16) |
| |
| #define AER_ERROR_SOURCES_MAX 100 |
| |
| #define AER_LOG_TLP_MASKS (PCI_ERR_UNC_POISON_TLP| \ |
| PCI_ERR_UNC_ECRC| \ |
| PCI_ERR_UNC_UNSUP| \ |
| PCI_ERR_UNC_COMP_ABORT| \ |
| PCI_ERR_UNC_UNX_COMP| \ |
| PCI_ERR_UNC_MALF_TLP) |
| |
| #define AER_MAX_MULTI_ERR_DEVICES 5 /* Not likely to have more */ |
| struct aer_err_info { |
| struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES]; |
| int error_dev_num; |
| |
| unsigned int id:16; |
| |
| unsigned int severity:2; /* 0:NONFATAL | 1:FATAL | 2:COR */ |
| unsigned int __pad1:5; |
| unsigned int multi_error_valid:1; |
| |
| unsigned int first_error:5; |
| unsigned int __pad2:2; |
| unsigned int tlp_header_valid:1; |
| |
| unsigned int status; /* COR/UNCOR Error Status */ |
| unsigned int mask; /* COR/UNCOR Error Mask */ |
| struct aer_header_log_regs tlp; /* TLP Header */ |
| }; |
| |
| struct aer_err_source { |
| unsigned int status; |
| unsigned int id; |
| }; |
| |
| struct aer_rpc { |
| struct pcie_device *rpd; /* Root Port device */ |
| struct work_struct dpc_handler; |
| struct aer_err_source e_sources[AER_ERROR_SOURCES_MAX]; |
| struct aer_err_info e_info; |
| unsigned short prod_idx; /* Error Producer Index */ |
| unsigned short cons_idx; /* Error Consumer Index */ |
| int isr; |
| spinlock_t e_lock; /* |
| * Lock access to Error Status/ID Regs |
| * and error producer/consumer index |
| */ |
| struct mutex rpc_mutex; /* |
| * only one thread could do |
| * recovery on the same |
| * root port hierarchy |
| */ |
| }; |
| |
| struct aer_broadcast_data { |
| enum pci_channel_state state; |
| enum pci_ers_result result; |
| }; |
| |
| static inline pci_ers_result_t merge_result(enum pci_ers_result orig, |
| enum pci_ers_result new) |
| { |
| if (new == PCI_ERS_RESULT_NO_AER_DRIVER) |
| return PCI_ERS_RESULT_NO_AER_DRIVER; |
| |
| if (new == PCI_ERS_RESULT_NONE) |
| return orig; |
| |
| switch (orig) { |
| case PCI_ERS_RESULT_CAN_RECOVER: |
| case PCI_ERS_RESULT_RECOVERED: |
| orig = new; |
| break; |
| case PCI_ERS_RESULT_DISCONNECT: |
| if (new == PCI_ERS_RESULT_NEED_RESET) |
| orig = PCI_ERS_RESULT_NEED_RESET; |
| break; |
| default: |
| break; |
| } |
| |
| return orig; |
| } |
| |
| extern struct bus_type pcie_port_bus_type; |
| void aer_isr(struct work_struct *work); |
| void aer_print_error(struct pci_dev *dev, struct aer_err_info *info); |
| void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info); |
| irqreturn_t aer_irq(int irq, void *context); |
| |
| #ifdef CONFIG_ACPI_APEI |
| int pcie_aer_get_firmware_first(struct pci_dev *pci_dev); |
| #else |
| static inline int pcie_aer_get_firmware_first(struct pci_dev *pci_dev) |
| { |
| if (pci_dev->__aer_firmware_first_valid) |
| return pci_dev->__aer_firmware_first; |
| return 0; |
| } |
| #endif |
| #endif /* _AERDRV_H_ */ |