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kernel/linux-imx6_3.14.28/include/trace/events/ras.h 2.07 KB
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  #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/aer.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
  ",
  		__get_str(dev_name),
  		__entry->severity == AER_CORRECTABLE ? "Corrected" :
  			__entry->severity == AER_FATAL ?
  			"Fatal" : "Uncorrected, non-fatal",
  		__entry->severity == AER_CORRECTABLE ?
  		__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>