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Diffstat (limited to 'drivers/pci/pcie/aer')
-rw-r--r--drivers/pci/pcie/aer/aer_inject.c25
-rw-r--r--drivers/pci/pcie/aer/aerdrv.c27
-rw-r--r--drivers/pci/pcie/aer/aerdrv.h34
-rw-r--r--drivers/pci/pcie/aer/aerdrv_core.c107
-rw-r--r--drivers/pci/pcie/aer/aerdrv_errprint.c190
5 files changed, 185 insertions, 198 deletions
diff --git a/drivers/pci/pcie/aer/aer_inject.c b/drivers/pci/pcie/aer/aer_inject.c
index d92ae21a59d8..62d15f652bb6 100644
--- a/drivers/pci/pcie/aer/aer_inject.c
+++ b/drivers/pci/pcie/aer/aer_inject.c
@@ -22,11 +22,10 @@
#include <linux/miscdevice.h>
#include <linux/pci.h>
#include <linux/fs.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#include "aerdrv.h"
-struct aer_error_inj
-{
+struct aer_error_inj {
u8 bus;
u8 dev;
u8 fn;
@@ -38,8 +37,7 @@ struct aer_error_inj
u32 header_log3;
};
-struct aer_error
-{
+struct aer_error {
struct list_head list;
unsigned int bus;
unsigned int devfn;
@@ -55,8 +53,7 @@ struct aer_error
u32 source_id;
};
-struct pci_bus_ops
-{
+struct pci_bus_ops {
struct list_head list;
struct pci_bus *bus;
struct pci_ops *ops;
@@ -150,7 +147,7 @@ static u32 *find_pci_config_dword(struct aer_error *err, int where,
target = &err->header_log1;
break;
case PCI_ERR_HEADER_LOG+8:
- target = &err->header_log2;
+ target = &err->header_log2;
break;
case PCI_ERR_HEADER_LOG+12:
target = &err->header_log3;
@@ -258,8 +255,7 @@ static int pci_bus_set_aer_ops(struct pci_bus *bus)
bus_ops = NULL;
out:
spin_unlock_irqrestore(&inject_lock, flags);
- if (bus_ops)
- kfree(bus_ops);
+ kfree(bus_ops);
return 0;
}
@@ -401,10 +397,8 @@ static int aer_inject(struct aer_error_inj *einj)
else
ret = -EINVAL;
out_put:
- if (err_alloc)
- kfree(err_alloc);
- if (rperr_alloc)
- kfree(rperr_alloc);
+ kfree(err_alloc);
+ kfree(rperr_alloc);
pci_dev_put(dev);
return ret;
}
@@ -458,8 +452,7 @@ static void __exit aer_inject_exit(void)
}
spin_lock_irqsave(&inject_lock, flags);
- list_for_each_entry_safe(err, err_next,
- &pci_bus_ops_list, list) {
+ list_for_each_entry_safe(err, err_next, &pci_bus_ops_list, list) {
list_del(&err->list);
kfree(err);
}
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 4770f13b3ca1..40c3cc5d1caf 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/pm.h>
@@ -38,7 +39,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
-static int __devinit aer_probe (struct pcie_device *dev);
+static int __devinit aer_probe(struct pcie_device *dev);
static void aer_remove(struct pcie_device *dev);
static pci_ers_result_t aer_error_detected(struct pci_dev *dev,
enum pci_channel_state error);
@@ -47,12 +48,12 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev);
static struct pci_error_handlers aer_error_handlers = {
.error_detected = aer_error_detected,
- .resume = aer_error_resume,
+ .resume = aer_error_resume,
};
static struct pcie_port_service_driver aerdriver = {
.name = "aer",
- .port_type = PCIE_ANY_PORT,
+ .port_type = PCIE_RC_PORT,
.service = PCIE_PORT_SERVICE_AER,
.probe = aer_probe,
@@ -134,12 +135,12 @@ EXPORT_SYMBOL_GPL(aer_irq);
*
* Invoked when Root Port's AER service is loaded.
**/
-static struct aer_rpc* aer_alloc_rpc(struct pcie_device *dev)
+static struct aer_rpc *aer_alloc_rpc(struct pcie_device *dev)
{
struct aer_rpc *rpc;
- if (!(rpc = kzalloc(sizeof(struct aer_rpc),
- GFP_KERNEL)))
+ rpc = kzalloc(sizeof(struct aer_rpc), GFP_KERNEL);
+ if (!rpc)
return NULL;
/*
@@ -189,26 +190,28 @@ static void aer_remove(struct pcie_device *dev)
*
* Invoked when PCI Express bus loads AER service driver.
**/
-static int __devinit aer_probe (struct pcie_device *dev)
+static int __devinit aer_probe(struct pcie_device *dev)
{
int status;
struct aer_rpc *rpc;
struct device *device = &dev->device;
/* Init */
- if ((status = aer_init(dev)))
+ status = aer_init(dev);
+ if (status)
return status;
/* Alloc rpc data structure */
- if (!(rpc = aer_alloc_rpc(dev))) {
+ rpc = aer_alloc_rpc(dev);
+ if (!rpc) {
dev_printk(KERN_DEBUG, device, "alloc rpc failed\n");
aer_remove(dev);
return -ENOMEM;
}
/* Request IRQ ISR */
- if ((status = request_irq(dev->irq, aer_irq, IRQF_SHARED, "aerdrv",
- dev))) {
+ status = request_irq(dev->irq, aer_irq, IRQF_SHARED, "aerdrv", dev);
+ if (status) {
dev_printk(KERN_DEBUG, device, "request IRQ failed\n");
aer_remove(dev);
return status;
@@ -316,6 +319,8 @@ static int __init aer_service_init(void)
{
if (pcie_aer_disable)
return -ENXIO;
+ if (!pci_msi_enabled())
+ return -ENXIO;
return pcie_port_service_register(&aerdriver);
}
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index bbd7428ca2d0..bd833ea3ba49 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -16,12 +16,9 @@
#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 ROOT_ERR_STATUS_MASKS 0x0f
#define SYSTEM_ERROR_INTR_ON_MESG_MASK (PCI_EXP_RTCTL_SECEE| \
PCI_EXP_RTCTL_SENFEE| \
@@ -32,8 +29,6 @@
#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| \
@@ -43,13 +38,6 @@
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;
@@ -61,11 +49,20 @@ struct header_log_regs {
struct aer_err_info {
struct pci_dev *dev[AER_MAX_MULTI_ERR_DEVICES];
int error_dev_num;
- u16 id;
- int severity; /* 0:NONFATAL | 1:FATAL | 2:COR */
- int flags;
+
+ 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 */
- struct header_log_regs tlp; /* TLP Header */
+ unsigned int mask; /* COR/UNCOR Error Mask */
+ struct header_log_regs tlp; /* TLP Header */
};
struct aer_err_source {
@@ -125,6 +122,7 @@ 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);
+extern void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info);
extern irqreturn_t aer_irq(int irq, void *context);
#ifdef CONFIG_ACPI
@@ -136,4 +134,4 @@ static inline int aer_osc_setup(struct pcie_device *pciedev)
}
#endif
-#endif //_AERDRV_H_
+#endif /* _AERDRV_H_ */
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 3d8872704a58..9f5ccbeb4fa5 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -49,10 +49,11 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
PCI_EXP_DEVCTL_NFERE |
PCI_EXP_DEVCTL_FERE |
PCI_EXP_DEVCTL_URRE;
- pci_write_config_word(dev, pos+PCI_EXP_DEVCTL,
- reg16);
+ pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, reg16);
+
return 0;
}
+EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
int pci_disable_pcie_error_reporting(struct pci_dev *dev)
{
@@ -68,10 +69,11 @@ int pci_disable_pcie_error_reporting(struct pci_dev *dev)
PCI_EXP_DEVCTL_NFERE |
PCI_EXP_DEVCTL_FERE |
PCI_EXP_DEVCTL_URRE);
- pci_write_config_word(dev, pos+PCI_EXP_DEVCTL,
- reg16);
+ pci_write_config_word(dev, pos+PCI_EXP_DEVCTL, reg16);
+
return 0;
}
+EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
{
@@ -92,6 +94,7 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
return 0;
}
+EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
#if 0
int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
@@ -110,7 +113,6 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
}
#endif /* 0 */
-
static int set_device_error_reporting(struct pci_dev *dev, void *data)
{
bool enable = *((bool *)data);
@@ -164,8 +166,9 @@ static int add_error_device(struct aer_err_info *e_info, struct pci_dev *dev)
e_info->dev[e_info->error_dev_num] = dev;
e_info->error_dev_num++;
return 1;
- } else
- return 0;
+ }
+
+ return 0;
}
@@ -193,7 +196,7 @@ static int find_device_iter(struct pci_dev *dev, void *data)
* If there is no multiple error, we stop
* or continue based on the id comparing.
*/
- if (!(e_info->flags & AER_MULTI_ERROR_VALID_FLAG))
+ if (!e_info->multi_error_valid)
return result;
/*
@@ -233,24 +236,16 @@ static int find_device_iter(struct pci_dev *dev, void *data)
status = 0;
mask = 0;
if (e_info->severity == AER_CORRECTABLE) {
- pci_read_config_dword(dev,
- pos + PCI_ERR_COR_STATUS,
- &status);
- pci_read_config_dword(dev,
- pos + PCI_ERR_COR_MASK,
- &mask);
- if (status & ERR_CORRECTABLE_ERROR_MASK & ~mask) {
+ pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &status);
+ pci_read_config_dword(dev, pos + PCI_ERR_COR_MASK, &mask);
+ if (status & ~mask) {
add_error_device(e_info, dev);
goto added;
}
} else {
- pci_read_config_dword(dev,
- pos + PCI_ERR_UNCOR_STATUS,
- &status);
- pci_read_config_dword(dev,
- pos + PCI_ERR_UNCOR_MASK,
- &mask);
- if (status & ERR_UNCORRECTABLE_ERROR_MASK & ~mask) {
+ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
+ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_MASK, &mask);
+ if (status & ~mask) {
add_error_device(e_info, dev);
goto added;
}
@@ -259,7 +254,7 @@ static int find_device_iter(struct pci_dev *dev, void *data)
return 0;
added:
- if (e_info->flags & AER_MULTI_ERROR_VALID_FLAG)
+ if (e_info->multi_error_valid)
return 0;
else
return 1;
@@ -411,8 +406,7 @@ static pci_ers_result_t broadcast_error_message(struct pci_dev *dev,
pci_cleanup_aer_uncorrect_error_status(dev);
dev->error_state = pci_channel_io_normal;
}
- }
- else {
+ } else {
/*
* If the error is reported by an end point, we think this
* error is related to the upstream link of the end point.
@@ -473,7 +467,7 @@ static pci_ers_result_t reset_link(struct pcie_device *aerdev,
if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE)
udev = dev;
else
- udev= dev->bus->self;
+ udev = dev->bus->self;
data.is_downstream = 0;
data.aer_driver = NULL;
@@ -576,7 +570,7 @@ static pci_ers_result_t do_recovery(struct pcie_device *aerdev,
*
* Invoked when an error being detected by Root Port.
*/
-static void handle_error_source(struct pcie_device * aerdev,
+static void handle_error_source(struct pcie_device *aerdev,
struct pci_dev *dev,
struct aer_err_info *info)
{
@@ -682,7 +676,7 @@ static void disable_root_aer(struct aer_rpc *rpc)
*
* Invoked by DPC handler to consume an error.
*/
-static struct aer_err_source* get_e_source(struct aer_rpc *rpc)
+static struct aer_err_source *get_e_source(struct aer_rpc *rpc)
{
struct aer_err_source *e_source;
unsigned long flags;
@@ -702,32 +696,50 @@ static struct aer_err_source* get_e_source(struct aer_rpc *rpc)
return e_source;
}
+/**
+ * get_device_error_info - read error status from dev and store it to info
+ * @dev: pointer to the device expected to have a error record
+ * @info: pointer to structure to store the error record
+ *
+ * Return 1 on success, 0 on error.
+ */
static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
{
- int pos;
+ int pos, temp;
+
+ info->status = 0;
+ info->tlp_header_valid = 0;
pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
/* The device might not support AER */
if (!pos)
- return AER_SUCCESS;
+ return 1;
if (info->severity == AER_CORRECTABLE) {
pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS,
&info->status);
- if (!(info->status & ERR_CORRECTABLE_ERROR_MASK))
- return AER_UNSUCCESS;
+ pci_read_config_dword(dev, pos + PCI_ERR_COR_MASK,
+ &info->mask);
+ if (!(info->status & ~info->mask))
+ return 0;
} else if (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE ||
info->severity == AER_NONFATAL) {
/* Link is still healthy for IO reads */
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS,
&info->status);
- if (!(info->status & ERR_UNCORRECTABLE_ERROR_MASK))
- return AER_UNSUCCESS;
+ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_MASK,
+ &info->mask);
+ if (!(info->status & ~info->mask))
+ return 0;
+
+ /* Get First Error Pointer */
+ pci_read_config_dword(dev, pos + PCI_ERR_CAP, &temp);
+ info->first_error = PCI_ERR_CAP_FEP(temp);
if (info->status & AER_LOG_TLP_MASKS) {
- info->flags |= AER_TLP_HEADER_VALID_FLAG;
+ info->tlp_header_valid = 1;
pci_read_config_dword(dev,
pos + PCI_ERR_HEADER_LOG, &info->tlp.dw0);
pci_read_config_dword(dev,
@@ -739,7 +751,7 @@ static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
}
}
- return AER_SUCCESS;
+ return 1;
}
static inline void aer_process_err_devices(struct pcie_device *p_device,
@@ -753,14 +765,14 @@ static inline void aer_process_err_devices(struct pcie_device *p_device,
e_info->id);
}
+ /* Report all before handle them, not to lost records by reset etc. */
for (i = 0; i < e_info->error_dev_num && e_info->dev[i]; i++) {
- if (get_device_error_info(e_info->dev[i], e_info) ==
- AER_SUCCESS) {
+ if (get_device_error_info(e_info->dev[i], e_info))
aer_print_error(e_info->dev[i], e_info);
- handle_error_source(p_device,
- e_info->dev[i],
- e_info);
- }
+ }
+ for (i = 0; i < e_info->error_dev_num && e_info->dev[i]; i++) {
+ if (get_device_error_info(e_info->dev[i], e_info))
+ handle_error_source(p_device, e_info->dev[i], e_info);
}
}
@@ -806,7 +818,9 @@ static void aer_isr_one_error(struct pcie_device *p_device,
if (e_src->status &
(PCI_ERR_ROOT_MULTI_COR_RCV |
PCI_ERR_ROOT_MULTI_UNCOR_RCV))
- e_info->flags |= AER_MULTI_ERROR_VALID_FLAG;
+ e_info->multi_error_valid = 1;
+
+ aer_print_port_info(p_device->port, e_info);
find_source_device(p_device->port, e_info);
aer_process_err_devices(p_device, e_info);
@@ -863,10 +877,5 @@ int aer_init(struct pcie_device *dev)
if (aer_osc_setup(dev) && !forceload)
return -ENXIO;
- return AER_SUCCESS;
+ return 0;
}
-
-EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
-EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
-EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
-
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c
index 0fc29ae80df8..44acde72294f 100644
--- a/drivers/pci/pcie/aer/aerdrv_errprint.c
+++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
@@ -27,69 +27,70 @@
#define AER_AGENT_COMPLETER 2
#define AER_AGENT_TRANSMITTER 3
-#define AER_AGENT_REQUESTER_MASK (PCI_ERR_UNC_COMP_TIME| \
- PCI_ERR_UNC_UNSUP)
-
-#define AER_AGENT_COMPLETER_MASK PCI_ERR_UNC_COMP_ABORT
-
-#define AER_AGENT_TRANSMITTER_MASK(t, e) (e & (PCI_ERR_COR_REP_ROLL| \
- ((t == AER_CORRECTABLE) ? PCI_ERR_COR_REP_TIMER: 0)))
+#define AER_AGENT_REQUESTER_MASK(t) ((t == AER_CORRECTABLE) ? \
+ 0 : (PCI_ERR_UNC_COMP_TIME|PCI_ERR_UNC_UNSUP))
+#define AER_AGENT_COMPLETER_MASK(t) ((t == AER_CORRECTABLE) ? \
+ 0 : PCI_ERR_UNC_COMP_ABORT)
+#define AER_AGENT_TRANSMITTER_MASK(t) ((t == AER_CORRECTABLE) ? \
+ (PCI_ERR_COR_REP_ROLL|PCI_ERR_COR_REP_TIMER) : 0)
#define AER_GET_AGENT(t, e) \
- ((e & AER_AGENT_COMPLETER_MASK) ? AER_AGENT_COMPLETER : \
- (e & AER_AGENT_REQUESTER_MASK) ? AER_AGENT_REQUESTER : \
- (AER_AGENT_TRANSMITTER_MASK(t, e)) ? AER_AGENT_TRANSMITTER : \
+ ((e & AER_AGENT_COMPLETER_MASK(t)) ? AER_AGENT_COMPLETER : \
+ (e & AER_AGENT_REQUESTER_MASK(t)) ? AER_AGENT_REQUESTER : \
+ (e & AER_AGENT_TRANSMITTER_MASK(t)) ? AER_AGENT_TRANSMITTER : \
AER_AGENT_RECEIVER)
-#define AER_PHYSICAL_LAYER_ERROR_MASK PCI_ERR_COR_RCVR
-#define AER_DATA_LINK_LAYER_ERROR_MASK(t, e) \
- (PCI_ERR_UNC_DLP| \
- PCI_ERR_COR_BAD_TLP| \
- PCI_ERR_COR_BAD_DLLP| \
- PCI_ERR_COR_REP_ROLL| \
- ((t == AER_CORRECTABLE) ? \
- PCI_ERR_COR_REP_TIMER: 0))
-
#define AER_PHYSICAL_LAYER_ERROR 0
#define AER_DATA_LINK_LAYER_ERROR 1
#define AER_TRANSACTION_LAYER_ERROR 2
-#define AER_GET_LAYER_ERROR(t, e) \
- ((e & AER_PHYSICAL_LAYER_ERROR_MASK) ? \
- AER_PHYSICAL_LAYER_ERROR : \
- (e & AER_DATA_LINK_LAYER_ERROR_MASK(t, e)) ? \
- AER_DATA_LINK_LAYER_ERROR : \
- AER_TRANSACTION_LAYER_ERROR)
+#define AER_PHYSICAL_LAYER_ERROR_MASK(t) ((t == AER_CORRECTABLE) ? \
+ PCI_ERR_COR_RCVR : 0)
+#define AER_DATA_LINK_LAYER_ERROR_MASK(t) ((t == AER_CORRECTABLE) ? \
+ (PCI_ERR_COR_BAD_TLP| \
+ PCI_ERR_COR_BAD_DLLP| \
+ PCI_ERR_COR_REP_ROLL| \
+ PCI_ERR_COR_REP_TIMER) : PCI_ERR_UNC_DLP)
+
+#define AER_GET_LAYER_ERROR(t, e) \
+ ((e & AER_PHYSICAL_LAYER_ERROR_MASK(t)) ? AER_PHYSICAL_LAYER_ERROR : \
+ (e & AER_DATA_LINK_LAYER_ERROR_MASK(t)) ? AER_DATA_LINK_LAYER_ERROR : \
+ AER_TRANSACTION_LAYER_ERROR)
+
+#define AER_PR(info, pdev, fmt, args...) \
+ printk("%s%s %s: " fmt, (info->severity == AER_CORRECTABLE) ? \
+ KERN_WARNING : KERN_ERR, dev_driver_string(&pdev->dev), \
+ dev_name(&pdev->dev), ## args)
/*
* AER error strings
*/
-static char* aer_error_severity_string[] = {
+static char *aer_error_severity_string[] = {
"Uncorrected (Non-Fatal)",
"Uncorrected (Fatal)",
"Corrected"
};
-static char* aer_error_layer[] = {
+static char *aer_error_layer[] = {
"Physical Layer",
"Data Link Layer",
"Transaction Layer"
};
-static char* aer_correctable_error_string[] = {
- "Receiver Error ", /* Bit Position 0 */
+static char *aer_correctable_error_string[] = {
+ "Receiver Error ", /* Bit Position 0 */
NULL,
NULL,
NULL,
NULL,
NULL,
- "Bad TLP ", /* Bit Position 6 */
- "Bad DLLP ", /* Bit Position 7 */
- "RELAY_NUM Rollover ", /* Bit Position 8 */
+ "Bad TLP ", /* Bit Position 6 */
+ "Bad DLLP ", /* Bit Position 7 */
+ "RELAY_NUM Rollover ", /* Bit Position 8 */
NULL,
NULL,
NULL,
- "Replay Timer Timeout ", /* Bit Position 12 */
- "Advisory Non-Fatal ", /* Bit Position 13 */
+ "Replay Timer Timeout ", /* Bit Position 12 */
+ "Advisory Non-Fatal ", /* Bit Position 13 */
NULL,
NULL,
NULL,
@@ -110,7 +111,7 @@ static char* aer_correctable_error_string[] = {
NULL,
};
-static char* aer_uncorrectable_error_string[] = {
+static char *aer_uncorrectable_error_string[] = {
NULL,
NULL,
NULL,
@@ -123,10 +124,10 @@ static char* aer_uncorrectable_error_string[] = {
NULL,
NULL,
NULL,
- "Poisoned TLP ", /* Bit Position 12 */
+ "Poisoned TLP ", /* Bit Position 12 */
"Flow Control Protocol ", /* Bit Position 13 */
- "Completion Timeout ", /* Bit Position 14 */
- "Completer Abort ", /* Bit Position 15 */
+ "Completion Timeout ", /* Bit Position 14 */
+ "Completer Abort ", /* Bit Position 15 */
"Unexpected Completion ", /* Bit Position 16 */
"Receiver Overflow ", /* Bit Position 17 */
"Malformed TLP ", /* Bit Position 18 */
@@ -145,98 +146,69 @@ static char* aer_uncorrectable_error_string[] = {
NULL,
};
-static char* aer_agent_string[] = {
+static char *aer_agent_string[] = {
"Receiver ID",
"Requester ID",
"Completer ID",
"Transmitter ID"
};
-static char * aer_get_error_source_name(int severity,
- unsigned int status,
- char errmsg_buff[])
+static void __aer_print_error(struct aer_err_info *info, struct pci_dev *dev)
{
- int i;
- char * errmsg = NULL;
+ int i, status;
+ char *errmsg = NULL;
+
+ status = (info->status & ~info->mask);
for (i = 0; i < 32; i++) {
if (!(status & (1 << i)))
continue;
- if (severity == AER_CORRECTABLE)
+ if (info->severity == AER_CORRECTABLE)
errmsg = aer_correctable_error_string[i];
else
errmsg = aer_uncorrectable_error_string[i];
- if (!errmsg) {
- sprintf(errmsg_buff, "Unknown Error Bit %2d ", i);
- errmsg = errmsg_buff;
- }
-
- break;
+ if (errmsg)
+ AER_PR(info, dev, " [%2d] %s%s\n", i, errmsg,
+ info->first_error == i ? " (First)" : "");
+ else
+ AER_PR(info, dev, " [%2d] Unknown Error Bit%s\n", i,
+ info->first_error == i ? " (First)" : "");
}
-
- return errmsg;
}
-static DEFINE_SPINLOCK(logbuf_lock);
-static char errmsg_buff[100];
void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
{
- char * errmsg;
- int err_layer, agent;
- char * loglevel;
-
- if (info->severity == AER_CORRECTABLE)
- loglevel = KERN_WARNING;
- else
- loglevel = KERN_ERR;
-
- printk("%s+------ PCI-Express Device Error ------+\n", loglevel);
- printk("%sError Severity\t\t: %s\n", loglevel,
- aer_error_severity_string[info->severity]);
-
- if ( info->status == 0) {
- printk("%sPCIE Bus Error type\t: (Unaccessible)\n", loglevel);
- printk("%sUnaccessible Received\t: %s\n", loglevel,
- info->flags & AER_MULTI_ERROR_VALID_FLAG ?
- "Multiple" : "First");
- printk("%sUnregistered Agent ID\t: %04x\n", loglevel,
- (dev->bus->number << 8) | dev->devfn);
+ int id = ((dev->bus->number << 8) | dev->devfn);
+
+ if (info->status == 0) {
+ AER_PR(info, dev,
+ "PCIE Bus Error: severity=%s, type=Unaccessible, "
+ "id=%04x(Unregistered Agent ID)\n",
+ aer_error_severity_string[info->severity], id);
} else {
- err_layer = AER_GET_LAYER_ERROR(info->severity, info->status);
- printk("%sPCIE Bus Error type\t: %s\n", loglevel,
- aer_error_layer[err_layer]);
-
- spin_lock(&logbuf_lock);
- errmsg = aer_get_error_source_name(info->severity,
- info->status,
- errmsg_buff);
- printk("%s%s\t: %s\n", loglevel, errmsg,
- info->flags & AER_MULTI_ERROR_VALID_FLAG ?
- "Multiple" : "First");
- spin_unlock(&logbuf_lock);
+ int layer, agent;
+ layer = AER_GET_LAYER_ERROR(info->severity, info->status);
agent = AER_GET_AGENT(info->severity, info->status);
- printk("%s%s\t\t: %04x\n", loglevel,
- aer_agent_string[agent],
- (dev->bus->number << 8) | dev->devfn);
-
- printk("%sVendorID=%04xh, DeviceID=%04xh,"
- " Bus=%02xh, Device=%02xh, Function=%02xh\n",
- loglevel,
- dev->vendor,
- dev->device,
- dev->bus->number,
- PCI_SLOT(dev->devfn),
- PCI_FUNC(dev->devfn));
-
- if (info->flags & AER_TLP_HEADER_VALID_FLAG) {
+
+ AER_PR(info, dev,
+ "PCIE Bus Error: severity=%s, type=%s, id=%04x(%s)\n",
+ aer_error_severity_string[info->severity],
+ aer_error_layer[layer], id, aer_agent_string[agent]);
+
+ AER_PR(info, dev,
+ " device [%04x:%04x] error status/mask=%08x/%08x\n",
+ dev->vendor, dev->device, info->status, info->mask);
+
+ __aer_print_error(info, dev);
+
+ if (info->tlp_header_valid) {
unsigned char *tlp = (unsigned char *) &info->tlp;
- printk("%sTLP Header:\n", loglevel);
- printk("%s%02x%02x%02x%02x %02x%02x%02x%02x"
+ AER_PR(info, dev, " TLP Header:"
+ " %02x%02x%02x%02x %02x%02x%02x%02x"
" %02x%02x%02x%02x %02x%02x%02x%02x\n",
- loglevel,
*(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
*(tlp + 11), *(tlp + 10), *(tlp + 9),
@@ -244,5 +216,15 @@ void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
*(tlp + 13), *(tlp + 12));
}
}
+
+ if (info->id && info->error_dev_num > 1 && info->id == id)
+ AER_PR(info, dev,
+ " Error of this Agent(%04x) is reported first\n", id);
}
+void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info)
+{
+ dev_info(&dev->dev, "AER: %s%s error received: id=%04x\n",
+ info->multi_error_valid ? "Multiple " : "",
+ aer_error_severity_string[info->severity], info->id);
+}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-21 11:40:25 +0200