cregit-Linux how code gets into the kernel

Release 4.7 drivers/pci/pcie/aer/aerdrv.h

/*
 * 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];
	
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; }

Contributors

PersonTokensPropCommitsCommitProp
yanmin zhangyanmin zhang5985.51%266.67%
vijay mohan pandarathilvijay mohan pandarathil1014.49%133.33%
Total69100.00%3100.00%

extern struct bus_type pcie_port_bus_type; int aer_init(struct pcie_device *dev); 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; }

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PersonTokensPropCommitsCommitProp
huang yinghuang ying26100.00%1100.00%
Total26100.00%1100.00%

#endif
static inline void pcie_aer_force_firmware_first(struct pci_dev *pci_dev, int enable) { pci_dev->__aer_firmware_first = !!enable; pci_dev->__aer_firmware_first_valid = 1; }

Contributors

PersonTokensPropCommitsCommitProp
huang yinghuang ying29100.00%1100.00%
Total29100.00%1100.00%

#endif /* _AERDRV_H_ */

Overall Contributors

PersonTokensPropCommitsCommitProp
yanmin zhangyanmin zhang24761.29%529.41%
huang yinghuang ying8420.84%317.65%
hidetoshi setohidetoshi seto5513.65%529.41%
vijay mohan pandarathilvijay mohan pandarathil102.48%15.88%
alexey dobriyanalexey dobriyan30.74%15.88%
david howellsdavid howells30.74%15.88%
uwe kleine-koeniguwe kleine-koenig10.25%15.88%
Total403100.00%17100.00%
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