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path: root/drivers/pci/pcie/aer/aerdrv_errprint.c
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Diffstat (limited to 'drivers/pci/pcie/aer/aerdrv_errprint.c')
-rw-r--r--drivers/pci/pcie/aer/aerdrv_errprint.c229
1 files changed, 132 insertions, 97 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c
index 9d3e4c8d018..36ed31b5219 100644
--- a/drivers/pci/pcie/aer/aerdrv_errprint.c
+++ b/drivers/pci/pcie/aer/aerdrv_errprint.c
@@ -19,9 +19,13 @@
#include <linux/errno.h>
#include <linux/pm.h>
#include <linux/suspend.h>
+#include <linux/cper.h>
#include "aerdrv.h"
+#define CREATE_TRACE_POINTS
+#include <trace/events/ras.h>
+
#define AER_AGENT_RECEIVER 0
#define AER_AGENT_REQUESTER 1
#define AER_AGENT_COMPLETER 2
@@ -57,86 +61,44 @@
(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 const char *aer_error_severity_string[] = {
"Uncorrected (Non-Fatal)",
"Uncorrected (Fatal)",
"Corrected"
};
-static char *aer_error_layer[] = {
+static const 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,
+
+static const 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 */
};
-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 */
+static const char *aer_uncorrectable_error_string[] = {
NULL,
NULL,
NULL,
NULL,
+ "Data Link Protocol", /* Bit Position 4 */
NULL,
NULL,
NULL,
@@ -144,20 +106,44 @@ static char *aer_uncorrectable_error_string[] = {
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 */
};
-static char *aer_agent_string[] = {
+static const char *aer_agent_string[] = {
"Receiver ID",
"Requester ID",
"Completer ID",
"Transmitter ID"
};
-static void __aer_print_error(struct aer_err_info *info, struct pci_dev *dev)
+static void __print_tlp_header(struct pci_dev *dev,
+ struct aer_header_log_regs *t)
{
- int i, status;
- char *errmsg = NULL;
+ unsigned char *tlp = (unsigned char *)&t;
+
+ dev_err(&dev->dev, " TLP Header:"
+ " %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));
+}
+static void __aer_print_error(struct pci_dev *dev,
+ struct aer_err_info *info)
+{
+ int i, status;
+ const char *errmsg = NULL;
status = (info->status & ~info->mask);
for (i = 0; i < 32; i++) {
@@ -165,61 +151,54 @@ static void __aer_print_error(struct aer_err_info *info, struct pci_dev *dev)
continue;
if (info->severity == AER_CORRECTABLE)
- errmsg = aer_correctable_error_string[i];
+ errmsg = i < ARRAY_SIZE(aer_correctable_error_string) ?
+ aer_correctable_error_string[i] : NULL;
else
- errmsg = aer_uncorrectable_error_string[i];
+ errmsg = i < ARRAY_SIZE(aer_uncorrectable_error_string) ?
+ aer_uncorrectable_error_string[i] : NULL;
if (errmsg)
- AER_PR(info, dev, " [%2d] %s%s\n", i, errmsg,
+ dev_err(&dev->dev, " [%2d] %-22s%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)" : "");
+ dev_err(&dev->dev, " [%2d] Unknown Error Bit%s\n",
+ i, info->first_error == i ? " (First)" : "");
}
}
void aer_print_error(struct pci_dev *dev, struct aer_err_info *info)
{
+ int layer, agent;
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",
+ if (!info->status) {
+ dev_err(&dev->dev, "PCIe Bus Error: severity=%s, type=Unaccessible, id=%04x(Unregistered Agent ID)\n",
aer_error_severity_string[info->severity], id);
- } else {
- int layer, agent;
-
- layer = AER_GET_LAYER_ERROR(info->severity, info->status);
- agent = AER_GET_AGENT(info->severity, info->status);
-
- 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;
- AER_PR(info, dev, " TLP Header:"
- " %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));
- }
+ goto out;
}
+ layer = AER_GET_LAYER_ERROR(info->severity, info->status);
+ agent = AER_GET_AGENT(info->severity, info->status);
+
+ dev_err(&dev->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]);
+
+ dev_err(&dev->dev, " device [%04x:%04x] error status/mask=%08x/%08x\n",
+ dev->vendor, dev->device,
+ info->status, info->mask);
+
+ __aer_print_error(dev, info);
+
+ if (info->tlp_header_valid)
+ __print_tlp_header(dev, &info->tlp);
+
+out:
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);
+ dev_err(&dev->dev, " Error of this Agent(%04x) is reported first\n", id);
+
+ trace_aer_event(dev_name(&dev->dev), (info->status & ~info->mask),
+ info->severity);
}
void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info)
@@ -228,3 +207,59 @@ void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info)
info->multi_error_valid ? "Multiple " : "",
aer_error_severity_string[info->severity], info->id);
}
+
+#ifdef CONFIG_ACPI_APEI_PCIEAER
+int cper_severity_to_aer(int cper_severity)
+{
+ switch (cper_severity) {
+ case CPER_SEV_RECOVERABLE:
+ return AER_NONFATAL;
+ case CPER_SEV_FATAL:
+ return AER_FATAL;
+ default:
+ return AER_CORRECTABLE;
+ }
+}
+EXPORT_SYMBOL_GPL(cper_severity_to_aer);
+
+void cper_print_aer(struct pci_dev *dev, int cper_severity,
+ struct aer_capability_regs *aer)
+{
+ int aer_severity, layer, agent, status_strs_size, tlp_header_valid = 0;
+ u32 status, mask;
+ const char **status_strs;
+
+ aer_severity = cper_severity_to_aer(cper_severity);
+
+ if (aer_severity == AER_CORRECTABLE) {
+ status = aer->cor_status;
+ mask = aer->cor_mask;
+ status_strs = aer_correctable_error_string;
+ status_strs_size = ARRAY_SIZE(aer_correctable_error_string);
+ } else {
+ status = aer->uncor_status;
+ mask = aer->uncor_mask;
+ status_strs = aer_uncorrectable_error_string;
+ status_strs_size = ARRAY_SIZE(aer_uncorrectable_error_string);
+ tlp_header_valid = status & AER_LOG_TLP_MASKS;
+ }
+
+ layer = AER_GET_LAYER_ERROR(aer_severity, status);
+ agent = AER_GET_AGENT(aer_severity, status);
+
+ dev_err(&dev->dev, "aer_status: 0x%08x, aer_mask: 0x%08x\n", status, mask);
+ cper_print_bits("", status, status_strs, status_strs_size);
+ dev_err(&dev->dev, "aer_layer=%s, aer_agent=%s\n",
+ aer_error_layer[layer], aer_agent_string[agent]);
+
+ if (aer_severity != AER_CORRECTABLE)
+ dev_err(&dev->dev, "aer_uncor_severity: 0x%08x\n",
+ aer->uncor_severity);
+
+ if (tlp_header_valid)
+ __print_tlp_header(dev, &aer->header_log);
+
+ trace_aer_event(dev_name(&dev->dev), (status & ~mask),
+ aer_severity);
+}
+#endif
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