linux/drivers/pci/pcie/aer/aerdrv.h
Zhang, Yanmin 8d29bfb79e PCI: fix AER driver error information
Below patch fixes aer driver error information and enables aer driver
although CONFIG_ACPI=n.

As a matter of fact, the new patch is created from below 2 patches plus
a minor patch apply fuzz fixing. Because the second patch fixed a compilation
error introduced by the first patch, I merge them to facilitate bisect.


1) http://marc.info/?l=linux-kernel&m=117783233918191&w=2;
2) http://marc.info/?l=linux-mm-commits&m=118046936720790&w=2


Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:08 -07:00

130 lines
3.1 KiB
C

/*
* 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>
#define AER_NONFATAL 0
#define AER_FATAL 1
#define AER_CORRECTABLE 2
#define AER_UNCORRECTABLE 4
#define AER_ERROR_MASK 0x001fffff
#define AER_ERROR(d) (d & AER_ERROR_MASK)
/* Root Error Status Register Bits */
#define ROOT_ERR_STATUS_MASKS 0x0f
#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_SUCCESS 0
#define AER_UNSUCCESS 1
#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)
/* AER Error Info Flags */
#define AER_TLP_HEADER_VALID_FLAG 0x00000001
#define AER_MULTI_ERROR_VALID_FLAG 0x00000002
#define ERR_CORRECTABLE_ERROR_MASK 0x000031c1
#define ERR_UNCORRECTABLE_ERROR_MASK 0x001ff010
struct header_log_regs {
unsigned int dw0;
unsigned int dw1;
unsigned int dw2;
unsigned int dw3;
};
struct aer_err_info {
int severity; /* 0:NONFATAL | 1:FATAL | 2:COR */
int flags;
unsigned int status; /* COR/UNCOR Error Status */
struct 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
*/
wait_queue_head_t wait_release;
};
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)
{
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 = new;
break;
default:
break;
}
return orig;
}
extern struct bus_type pcie_port_bus_type;
extern void aer_enable_rootport(struct aer_rpc *rpc);
extern void aer_delete_rootport(struct aer_rpc *rpc);
extern int aer_init(struct pcie_device *dev);
extern void aer_isr(struct work_struct *work);
extern void aer_print_error(struct pci_dev *dev, struct aer_err_info *info);
#ifdef CONFIG_ACPI
extern int aer_osc_setup(struct pcie_device *pciedev);
#else
static inline int aer_osc_setup(struct pcie_device *pciedev)
{
return 0;
}
#endif
#endif //_AERDRV_H_