diff options
| author | Thomas Tai <thomas.tai@oracle.com> | 2018-05-08 19:04:56 -0400 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2018-05-10 08:34:52 -0500 |
| commit | 2af8641b2ad3c0faf1ba63e989ca2f2f2134e10d (patch) | |
| tree | cefca5626022c7c7e4c013012acde9abb96d135e /drivers/pci | |
| parent | 5d0b401f4cf7a8fa6be25e83ad9d1075f3f75194 (diff) | |
PCI/AER: Add TLP header information to tracepoint
When a PCIe AER error occurs, the TLP header information is printed in the
kernel message but it is missing from the tracepoint. A userspace program
can use this information in the tracepoint to better analyze problems.
To enable the tracepoint:
echo 1 > /sys/kernel/debug/tracing/events/ras/aer_event/enable
Example tracepoint output:
$ cat /sys/kernel/debug/tracing/trace
aer_event: 0000:01:00.0
PCIe Bus Error: severity=Uncorrected, non-fatal, Completer Abort
TLP Header={0x0,0x1,0x2,0x3}
Signed-off-by: Thomas Tai <thomas.tai@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/aer/aerdrv_errprint.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/pcie/aer/aerdrv_errprint.c b/drivers/pci/pcie/aer/aerdrv_errprint.c index b5612cc51b63..21ca5e1b0ded 100644 --- a/drivers/pci/pcie/aer/aerdrv_errprint.c +++ b/drivers/pci/pcie/aer/aerdrv_errprint.c @@ -189,7 +189,7 @@ out: pci_err(dev, " Error of this Agent(%04x) is reported first\n", id); trace_aer_event(dev_name(&dev->dev), (info->status & ~info->mask), - info->severity); + info->severity, info->tlp_header_valid, &info->tlp); } void aer_print_port_info(struct pci_dev *dev, struct aer_err_info *info) @@ -251,6 +251,6 @@ void cper_print_aer(struct pci_dev *dev, int aer_severity, __print_tlp_header(dev, &aer->header_log); trace_aer_event(dev_name(&dev->dev), (status & ~mask), - aer_severity); + aer_severity, tlp_header_valid, &aer->header_log); } #endif |