aboutsummaryrefslogtreecommitdiffstats
path: root/include/trace
diff options
context:
space:
mode:
authorLance Ortiz <lance.ortiz@hp.com>2013-01-03 17:34:01 -0500
committerTony Luck <tony.luck@intel.com>2013-01-03 17:31:44 -0500
commit1ca1d8d54f925ad0eb6d9806ecd4309738f25301 (patch)
tree6da893ddc4487da134c5018a8406359cea19294a /include/trace
parentd1c3ed669a2d452cacfb48c2d171a1f364dae2ed (diff)
aerdrv: Trace Event for PCI Express Advanced Error Reporting
This header file will define a new trace event that will be triggered when a AER event occurs. The following data will be provided to the trace event. char * dev_name - The name of the slot where the device resides ([domain:]bus:device.function). u32 status - Either the correctable or uncorrectable register indicating what error or errors have been see. u8 severity - error severity 0:NONFATAL 1:FATAL 2:CORRECTED The trace event will also provide a trace string that may look like: "0000:05:00.0 PCIe Bus Error:severity=Uncorrected (Non-Fatal), Poisoned TLP" Signed-off-by: Lance Ortiz <lance.ortiz@hp.com> Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Acked-by: Boris Petkov <bp@alien8.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/ras.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/include/trace/events/ras.h b/include/trace/events/ras.h
new file mode 100644
index 000000000000..88b878383797
--- /dev/null
+++ b/include/trace/events/ras.h
@@ -0,0 +1,77 @@
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM ras
3
4#if !defined(_TRACE_AER_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_AER_H
6
7#include <linux/tracepoint.h>
8#include <linux/edac.h>
9
10
11/*
12 * PCIe AER Trace event
13 *
14 * These events are generated when hardware detects a corrected or
15 * uncorrected event on a PCIe device. The event report has
16 * the following structure:
17 *
18 * char * dev_name - The name of the slot where the device resides
19 * ([domain:]bus:device.function).
20 * u32 status - Either the correctable or uncorrectable register
21 * indicating what error or errors have been seen
22 * u8 severity - error severity 0:NONFATAL 1:FATAL 2:CORRECTED
23 */
24
25#define aer_correctable_errors \
26 {BIT(0), "Receiver Error"}, \
27 {BIT(6), "Bad TLP"}, \
28 {BIT(7), "Bad DLLP"}, \
29 {BIT(8), "RELAY_NUM Rollover"}, \
30 {BIT(12), "Replay Timer Timeout"}, \
31 {BIT(13), "Advisory Non-Fatal"}
32
33#define aer_uncorrectable_errors \
34 {BIT(4), "Data Link Protocol"}, \
35 {BIT(12), "Poisoned TLP"}, \
36 {BIT(13), "Flow Control Protocol"}, \
37 {BIT(14), "Completion Timeout"}, \
38 {BIT(15), "Completer Abort"}, \
39 {BIT(16), "Unexpected Completion"}, \
40 {BIT(17), "Receiver Overflow"}, \
41 {BIT(18), "Malformed TLP"}, \
42 {BIT(19), "ECRC"}, \
43 {BIT(20), "Unsupported Request"}
44
45TRACE_EVENT(aer_event,
46 TP_PROTO(const char *dev_name,
47 const u32 status,
48 const u8 severity),
49
50 TP_ARGS(dev_name, status, severity),
51
52 TP_STRUCT__entry(
53 __string( dev_name, dev_name )
54 __field( u32, status )
55 __field( u8, severity )
56 ),
57
58 TP_fast_assign(
59 __assign_str(dev_name, dev_name);
60 __entry->status = status;
61 __entry->severity = severity;
62 ),
63
64 TP_printk("%s PCIe Bus Error: severity=%s, %s\n",
65 __get_str(dev_name),
66 __entry->severity == HW_EVENT_ERR_CORRECTED ? "Corrected" :
67 __entry->severity == HW_EVENT_ERR_FATAL ?
68 "Fatal" : "Uncorrected",
69 __entry->severity == HW_EVENT_ERR_CORRECTED ?
70 __print_flags(__entry->status, "|", aer_correctable_errors) :
71 __print_flags(__entry->status, "|", aer_uncorrectable_errors))
72);
73
74#endif /* _TRACE_AER_H */
75
76/* This part must be outside protection */
77#include <trace/define_trace.h>