0d465f2350
The flag AER_MULTI_ERROR_VALID_FLAG in info->flag does mean that the root port receives multiple error messages. Error messages can be posted from different devices, so it does not mean that each reported device has multiple errors. If there are multiple error devices and the root port has valid error source ID, it would be nice to report which device is the error source reported first. Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
237 lines
5.7 KiB
C
237 lines
5.7 KiB
C
/*
|
|
* drivers/pci/pcie/aer/aerdrv_errprint.c
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Format error messages and print them to console.
|
|
*
|
|
* Copyright (C) 2006 Intel Corp.
|
|
* Tom Long Nguyen (tom.l.nguyen@intel.com)
|
|
* Zhang Yanmin (yanmin.zhang@intel.com)
|
|
*
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/suspend.h>
|
|
|
|
#include "aerdrv.h"
|
|
|
|
#define AER_AGENT_RECEIVER 0
|
|
#define AER_AGENT_REQUESTER 1
|
|
#define AER_AGENT_COMPLETER 2
|
|
#define AER_AGENT_TRANSMITTER 3
|
|
|
|
#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(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 0
|
|
#define AER_DATA_LINK_LAYER_ERROR 1
|
|
#define AER_TRANSACTION_LAYER_ERROR 2
|
|
|
|
#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, fmt, args...) \
|
|
printk("%s" fmt, (info->severity == AER_CORRECTABLE) ? \
|
|
KERN_WARNING : KERN_ERR, ## args)
|
|
|
|
/*
|
|
* AER error strings
|
|
*/
|
|
static char *aer_error_severity_string[] = {
|
|
"Uncorrected (Non-Fatal)",
|
|
"Uncorrected (Fatal)",
|
|
"Corrected"
|
|
};
|
|
|
|
static char *aer_error_layer[] = {
|
|
"Physical Layer",
|
|
"Data Link Layer",
|
|
"Transaction Layer"
|
|
};
|
|
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 */
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
"Replay Timer Timeout ", /* Bit Position 12 */
|
|
"Advisory Non-Fatal ", /* Bit Position 13 */
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
static char *aer_uncorrectable_error_string[] = {
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
"Data Link Protocol ", /* Bit Position 4 */
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
"Poisoned TLP ", /* Bit Position 12 */
|
|
"Flow Control Protocol ", /* Bit Position 13 */
|
|
"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 */
|
|
"ECRC ", /* Bit Position 19 */
|
|
"Unsupported Request ", /* Bit Position 20 */
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|
|
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[])
|
|
{
|
|
int i;
|
|
char *errmsg = NULL;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
if (!(status & (1 << i)))
|
|
continue;
|
|
|
|
if (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;
|
|
}
|
|
|
|
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;
|
|
int id = ((dev->bus->number << 8) | dev->devfn);
|
|
|
|
AER_PR(info, "+------ PCI-Express Device Error ------+\n");
|
|
AER_PR(info, "Error Severity\t\t: %s\n",
|
|
aer_error_severity_string[info->severity]);
|
|
|
|
if (info->status == 0) {
|
|
AER_PR(info, "PCIE Bus Error type\t: (Unaccessible)\n");
|
|
AER_PR(info, "Unregistered Agent ID\t: %04x\n", id);
|
|
} else {
|
|
err_layer = AER_GET_LAYER_ERROR(info->severity, info->status);
|
|
AER_PR(info, "PCIE Bus Error type\t: %s\n",
|
|
aer_error_layer[err_layer]);
|
|
|
|
spin_lock(&logbuf_lock);
|
|
errmsg = aer_get_error_source_name(info->severity,
|
|
info->status,
|
|
errmsg_buff);
|
|
AER_PR(info, "%s\t:\n", errmsg);
|
|
spin_unlock(&logbuf_lock);
|
|
|
|
agent = AER_GET_AGENT(info->severity, info->status);
|
|
AER_PR(info, "%s\t\t: %04x\n", aer_agent_string[agent], id);
|
|
|
|
AER_PR(info, "VendorID=%04xh, DeviceID=%04xh,"
|
|
" Bus=%02xh, Device=%02xh, Function=%02xh\n",
|
|
dev->vendor,
|
|
dev->device,
|
|
dev->bus->number,
|
|
PCI_SLOT(dev->devfn),
|
|
PCI_FUNC(dev->devfn));
|
|
|
|
if (info->flags & AER_TLP_HEADER_VALID_FLAG) {
|
|
unsigned char *tlp = (unsigned char *) &info->tlp;
|
|
AER_PR(info, "TLP Header:\n");
|
|
AER_PR(info, "%02x%02x%02x%02x %02x%02x%02x%02x"
|
|
" %02x%02x%02x%02x %02x%02x%02x%02x\n",
|
|
*(tlp + 3), *(tlp + 2), *(tlp + 1), *tlp,
|
|
*(tlp + 7), *(tlp + 6), *(tlp + 5), *(tlp + 4),
|
|
*(tlp + 11), *(tlp + 10), *(tlp + 9),
|
|
*(tlp + 8), *(tlp + 15), *(tlp + 14),
|
|
*(tlp + 13), *(tlp + 12));
|
|
}
|
|
}
|
|
|
|
if (info->id && info->error_dev_num > 1 && info->id == id)
|
|
AER_PR(info, "Error of this Agent(%04x) is reported first\n",
|
|
id);
|
|
}
|