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Commit 1ca1d8d5 authored by Lance Ortiz's avatar Lance Ortiz Committed by Tony Luck
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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: default avatarLance Ortiz <lance.ortiz@hp.com>
Acked-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: default avatarBoris Petkov <bp@alien8.de>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent d1c3ed66

include/trace/events/ras.h

0 → 100644
+77 −0
Original line number Diff line number Diff line 
#undef TRACE_SYSTEM

#define TRACE_SYSTEM ras



#if !defined(_TRACE_AER_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_AER_H



#include <linux/tracepoint.h>

#include <linux/edac.h>





/*

 * PCIe AER Trace event

 *

 * These events are generated when hardware detects a corrected or

 * uncorrected event on a PCIe device. The event report has

 * the following structure:

 *

 * 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 seen

 * u8 severity -	error severity 0:NONFATAL 1:FATAL 2:CORRECTED

 */



#define aer_correctable_errors		\

	{BIT(0),	"Receiver Error"},		\

	{BIT(6),	"Bad TLP"},			\

	{BIT(7),	"Bad DLLP"},			\

	{BIT(8),	"RELAY_NUM Rollover"},		\

	{BIT(12),	"Replay Timer Timeout"},	\

	{BIT(13),	"Advisory Non-Fatal"}



#define aer_uncorrectable_errors		\

	{BIT(4),	"Data Link Protocol"},		\

	{BIT(12),	"Poisoned TLP"},		\

	{BIT(13),	"Flow Control Protocol"},	\

	{BIT(14),	"Completion Timeout"},		\

	{BIT(15),	"Completer Abort"},		\

	{BIT(16),	"Unexpected Completion"},	\

	{BIT(17),	"Receiver Overflow"},		\

	{BIT(18),	"Malformed TLP"},		\

	{BIT(19),	"ECRC"},			\

	{BIT(20),	"Unsupported Request"}



TRACE_EVENT(aer_event,

	TP_PROTO(const char *dev_name,

		 const u32 status,

		 const u8 severity),



	TP_ARGS(dev_name, status, severity),



	TP_STRUCT__entry(

		__string(	dev_name,	dev_name	)

		__field(	u32,		status		)

		__field(	u8,		severity	)

	),



	TP_fast_assign(

		__assign_str(dev_name, dev_name);

		__entry->status		= status;

		__entry->severity	= severity;

	),



	TP_printk("%s PCIe Bus Error: severity=%s, %s\n",

		__get_str(dev_name),

		__entry->severity == HW_EVENT_ERR_CORRECTED ? "Corrected" :

			__entry->severity == HW_EVENT_ERR_FATAL ?

			"Fatal" : "Uncorrected",

		__entry->severity == HW_EVENT_ERR_CORRECTED ?

		__print_flags(__entry->status, "|", aer_correctable_errors) :

		__print_flags(__entry->status, "|", aer_uncorrectable_errors))

);



#endif /* _TRACE_AER_H */



/* This part must be outside protection */

#include <trace/define_trace.h>